Block Island, Rhode Island Weather Conditions

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Current Conditions

  • 41°
  • Clear
  • Wind: NNE 7 mph
  • Humidity: 45%
  • Visibility: 10.0 miles
  • Dew Point: 21°
  • Pressure: 30.50 in. +
  • Heat Index: 36

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Next 12 Hours

8  pm
11  pm
2  am
5  am
8  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
41°
37°
37°
36°
39°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Clear
  • High: 48 °
  • Low: 36 °
  • Clear
  • Friday
  • Chance of Rain
  • High: 50 °
  • Low: 41 °
  • Chance of Rain
  • Saturday
  • Partly Cloudy
  • High: 55 °
  • Low: 41 °
  • Partly Cloudy
  • Sunday
  • Clear
  • High: 55 °
  • Low: 43 °
  • Clear
  • Monday
  • Partly Cloudy
  • High: 55 °
  • Low: 46 °
  • Partly Cloudy

Forecast for Block Island, Rhode Island

Updated: 5:00 PM EDT on April 16, 2014

  • Wednesday

    Clear. High of 46F. Windy. Winds from the NNW at 15 to 25 mph with gusts to 35 mph.

  • Wednesday Night

    Clear. Low of 34F with a windchill as low as 27F. Winds from the NE at 10 to 15 mph.

  • Thursday

    Clear in the morning, then partly cloudy. High of 48F. Breezy. Winds from the ENE at 15 to 20 mph.

  • Thursday Night

    Partly cloudy. Low of 36F. Breezy. Winds from the ENE at 15 to 20 mph.

  • Friday

    Overcast with a chance of rain. High of 50F. Breezy. Winds from the ENE at 10 to 20 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy with a chance of rain in the evening, then overcast. Fog overnight. Low of 41F. Winds from the NE at 5 to 15 mph.

  • Saturday

    Overcast in the morning, then partly cloudy. High of 55F. Breezy. Winds from the WNW at 10 to 20 mph.

  • Saturday Night

    Partly cloudy in the evening, then clear. Low of 41F. Breezy. Winds from the NW at 15 to 20 mph.

  • Sunday

    Partly cloudy in the morning, then clear. High of 55F. Breezy. Winds from the NNE at 10 to 20 mph shifting to the SE in the afternoon.

  • Sunday Night

    Partly cloudy. Low of 43F. Winds from the SSE at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 55F. Breezy. Winds from the South at 10 to 20 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 46F. Winds from the SW at 10 to 15 mph.

  • Tuesday

    Partly cloudy with a chance of rain. High of 55F. Winds from the SW at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.7 in. possible.

  • Tuesday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 46F. Winds from the WSW at 5 to 20 mph shifting to the NW after midnight. Chance of rain 40%.

  • Wednesday

    Partly cloudy. High of 61F. Breezy. Winds from the NW at 15 to 25 mph.

  • Wednesday Night

    Partly cloudy. Low of 54F. Breezy. Winds from the NW at 15 to 20 mph.

  • Thursday

    Partly cloudy. High of 64F. Winds from the WNW at 5 to 20 mph shifting to the SW in the afternoon.

  • Thursday Night

    Partly cloudy. Low of 52F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 63F. Winds from the SSW at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Low of 52F. Winds from the South at 5 to 15 mph.

  • Saturday

    Partly cloudy. High of 63F. Winds from the South at 10 to 15 mph.

  • Saturday Night

    Mostly cloudy with a chance of rain. Fog overnight. Low of 52F. Winds from the SSW at 5 to 15 mph. Chance of rain 40%.

  • Sunday

    Clear with a chance of rain. High of 55F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Clear. Low of 52F. Breezy. Winds from the West at 20 to 25 mph.

Severe Weather Alert Descriptions

 Public Information Statement  Statement as of 3:29 PM EDT on April 16, 2014


The following are unofficial rain... snow and wind gusts observations
for the southern New England storm from Tuesday evening April 15 to
Wednesday morning April 16th. Appreciation is extended to Skywarn
spotters... NWS cooperative and cocorahs observers for these reports.
This summary is also available on our home Page at weather.Gov/bos

********************storm total snowfall********************

Location storm total time/date comments
                     snowfall of
                     /inches/ measurement

Connecticut

... Hartford County...
   1 ENE North Granby 0.5 730 am 4/16 cocorahs
   3 SW central manches 0.5 700 am 4/16 cocorahs
   North Granby 0.5 810 am 4/16 trained spotter
   3 E Southington 0.3 700 am 4/16 cocorahs
   2 se Enfield 0.2 700 am 4/16 cocorahs

... Tolland County...
   Tolland 1.5 315 am 4/16 media
   Somers 1.0 629 am 4/16 trained spotter
   Staffordville 1.0 722 am 4/16 co-op observer
   NNW Staffordville 1.0 500 am 4/16 cocorahs

... Windham County...
   East Killingly 0.4 551 am 4/16 none
   1 SW East Killingly 0.4 600 am 4/16 cocorahs
   2 ENE Dayville 0.3 900 am 4/16 cocorahs

Massachusetts

... Barnstable County...
   1 NW East Falmouth 0.1 700 am 4/16 cocorahs

... Bristol County...
   2 NNE Norton 0.5 700 am 4/16 cocorahs
   Taunton 0.4 721 am 4/16 NWS office
   1 WSW Dighton 0.3 800 am 4/16 cocorahs
   3 E Attleboro 0.1 700 am 4/16 cocorahs

... Dukes County...
   3 N West Tisbury 0.2 800 am 4/16 cocorahs

... Essex County...
   Topsfield 0.7 659 am 4/16 trained spotter
   4 NW Salisbury 0.5 600 am 4/16 cocorahs
   2 S Boxford 0.5 700 am 4/16 cocorahs
   1 SW Marblehead 0.1 900 am 4/16 cocorahs

... Franklin County...
   Ashfield 2.0 635 am 4/16 none
   Leyden 2.0 720 am 4/16 ham radio
   Northfield 2.0 525 am 4/16 none
   1 SW Conway 1.5 800 am 4/16 cocorahs

... Hampden County...
   Ludlow 2.0 206 am 4/16 trained spotter
   2 SSW Wilbraham 1.0 800 am 4/16 cocorahs
   Westfield 1.0 100 am 4/16 public
   Longmeadow 1.0 150 am 4/16 trained spotter

... Hampshire County...
   2 SW Westhampton 2.8 700 am 4/16 cocorahs
   Granby 2.4 209 am 4/16 public
   2 SW Plainfield 1.7 600 am 4/16 cocorahs
   NNE Leeds 1.5 700 am 4/16 cocorahs
   1 WSW Williamsburg 1.5 630 am 4/16 cocorahs

... Middlesex County...
   Framingham 0.9 440 am 4/16 ham radio
   reading 0.7 316 PM 4/16 co-op observer
   1 SW Acton 0.7 700 am 4/16 cocorahs
   Ayer 0.6 1141 am 4/16 ham radio
   Wakefield 0.5 603 am 4/16 general public
   Carlisle 0.5 415 am 4/16 general public
   1 se Winchester 0.4 700 am 4/16 cocorahs
   Pepperell 0.2 719 am 4/16 trained spotter

... Norfolk County...
   Milton 0.8 707 am 4/16 Blue Hill observatory
   Quincy 0.5 1008 am 4/16 general public
   Randolph 0.5 615 am 4/16 trained spotter
   1 NW Norwood 0.3 700 am 4/16 cocorahs
   Norwood 0.3 700 am 4/16 NWS employee
   2 SW Millis 0.2 700 am 4/16 cocorahs
   1 NE Franklin 0.1 700 am 4/16 cocorahs

... Plymouth County...
   3 WNW Kingston 0.7 700 am 4/16 cocorahs
   6 E Middleborough 0.2 600 am 4/16 cocorahs
   2 S Hingham 0.1 730 am 4/16 cocorahs

... Suffolk County...
   1 W Brighton 0.5 700 am 4/16 cocorahs
   1 N East Boston 0.3 607 am 4/16 Airport
   N Winthrop 0.3 800 am 4/16 cocorahs
   Winthrop 0.3 700 am 4/16 none

... Worcester County...
   Royalston 3.5 625 am 4/16 trained spotter
   Templeton 1.5 450 am 4/16 none
   Milford 0.8 1043 am 4/16 trained spotter
   Worcester 0.6 810 am 4/16 cwo
   3 WNW Worcester 0.6 900 am 4/16 Airport
   2 NNW Milford 0.4 700 am 4/16 cocorahs
   2 SSW Fitchburg 0.2 600 am 4/16 cocorahs

New Hampshire

... Cheshire County...
   Keene 3.0 738 am 4/16 Otter Brook Lake Coe
   WNW west chesterfiel 0.9 700 am 4/16 cocorahs

... Hillsborough County...
   2 S New Boston 0.8 600 am 4/16 cocorahs
   Hudson 0.5 1142 am 4/16 ham radio
   3 ENE Hollis 0.2 700 am 4/16 cocorahs

Rhode Island

... Kent County...
   2 NNW Warwick 0.3 100 PM 4/16 Airport

... Providence County...
   Burrillville 0.8 624 am 4/16 general public
   west Glocester 0.6 822 am 4/16 trained spotter
   3 se west Glocester 0.6 700 am 4/16 cocorahs
   Foster 0.6 722 am 4/16 co-op observer


********************storm total rainfall********************

Location storm total time/date comments
                     rainfall of
                     /inches/ measurement

Connecticut

... Hartford County...
   3 E Southington 1.95 700 am 4/16 cocorahs
   South Windsor 1.80 120 PM 4/16 trained spotter
   3 NNW West Hartford 1.64 645 am 4/16 cocorahs
   1 ENE North Granby 1.61 730 am 4/16 cocorahs
   North Granby 1.61 810 am 4/16 trained spotter
   3 SW central manches 1.59 700 am 4/16 cocorahs
   1 WSW Wethersfield 1.19 900 am 4/16 cocorahs
   2 se Enfield 1.17 700 am 4/16 cocorahs
   Burlington 0.88 504 PM 4/15 general public
   1 ENE Newington 0.40 1130 am 4/16 cocorahs

... Tolland County...
   Staffordville 1.90 722 am 4/16 co-op observer
   NNW Staffordville 1.90 500 am 4/16 cocorahs

... Windham County...
   East Killingly 2.38 551 am 4/16 none
   1 SW East Killingly 2.26 600 am 4/16 cocorahs
   2 ENE Dayville 2.19 900 am 4/16 cocorahs
   2 SSE north grosveno 1.68 700 am 4/16 cocorahs

Massachusetts

... Barnstable County...
   1 NW Wellfleet 1.40 800 am 4/16 cocorahs
   1 SW Eastham 1.39 700 am 4/16 cocorahs
   1 NNW Falmouth 1.27 730 am 4/16 cocorahs
   3 NE Harwich 1.26 715 am 4/16 cocorahs
   2 ESE Wellfleet 1.25 800 am 4/16 cocorahs
   1 ENE North Falmouth 1.25 500 am 4/16 cocorahs
   1 E Orleans 1.20 800 am 4/16 cocorahs
   1 W Orleans 1.18 700 am 4/16 cocorahs
   2 se East Sandwich 1.14 700 am 4/16 cocorahs
   3 NNW Falmouth 1.12 700 am 4/16 cocorahs
   1 NW East Falmouth 1.12 700 am 4/16 cocorahs
   2 WSW Falmouth 1.10 700 am 4/16 cocorahs
   2 ESE Brewster 1.05 700 am 4/16 cocorahs
   3 ENE Harwich 1.04 900 am 4/16 cocorahs
   2 SSE Yarmouth 1.03 700 am 4/16 cocorahs
   1 SSW Waquoit 1.03 900 am 4/16 cocorahs
   1 NNW Yarmouth 1.00 800 am 4/16 cocorahs
   3 E Falmouth 0.97 700 am 4/16 cocorahs
   1 ESE East Falmouth 0.89 700 am 4/16 cocorahs

... Bristol County...
   Taunton 2.09 1134 am 4/16 ham radio
   SSE Somerset 2.05 600 am 4/16 cocorahs
   Acushnet 2.04 845 am 4/16 none
   1 WSW Dighton 1.97 800 am 4/16 cocorahs
   2 WSW Swansea 1.96 700 am 4/16 cocorahs
   3 E Attleboro 1.90 700 am 4/16 cocorahs
   2 NNE Norton 1.84 700 am 4/16 cocorahs
   New Bedford 1.60 1121 am 4/16 ham radio

... Dukes County...
   3 N West Tisbury 1.01 800 am 4/16 cocorahs
   2 WSW Vineyard Haven 0.98 700 am 4/16 cocorahs

... Essex County...
   3 NW Beverly 1.13 700 am 4/16 cocorahs
   1 SW Marblehead 0.92 900 am 4/16 cocorahs
   4 NW Salisbury 0.72 600 am 4/16 cocorahs
   2 S Boxford 0.70 700 am 4/16 cocorahs

... Franklin County...
   1 SW Conway 1.35 800 am 4/16 cocorahs

... Hampden County...
   Ludlow 1.60 1142 PM 4/15 trained spotter
   Agawam 1.50 708 am 4/16 emergency manager
   2 SSW Wilbraham 1.36 800 am 4/16 cocorahs

... Hampshire County...
   2 SW Westhampton 1.86 700 am 4/16 cocorahs
   NNE Leeds 1.57 700 am 4/16 cocorahs
   1 WSW Williamsburg 1.51 630 am 4/16 cocorahs
   2 SW Plainfield 1.30 600 am 4/16 cocorahs

... Middlesex County...
   Hudson 2.00 620 am 4/16 trained spotter
   ESE Belmont 1.35 700 am 4/16 cocorahs
   Wakefield 1.25 631 am 4/16 trained spotter
   1 SW Acton 1.25 700 am 4/16 cocorahs
   1 se Winchester 1.20 700 am 4/16 cocorahs
   reading 1.15 319 PM 4/16 co-op observer
   1 SSE Melrose 1.00 700 am 4/16 cocorahs
   3 S Townsend 0.99 900 am 4/16 cocorahs
   Pepperell 0.97 731 am 4/16 trained spotter
   3 NNE Groton 0.92 553 am 4/16 cocorahs

... Norfolk County...
   1 NE Franklin 1.86 700 am 4/16 cocorahs
   S Foxborough 1.65 700 am 4/16 cocorahs
   2 SW Millis 1.48 700 am 4/16 cocorahs
   Quincy 1.45 114 PM 4/16 general public
   1 NW Norwood 1.31 700 am 4/16 cocorahs
   Norwood 1.31 700 am 4/16 NWS employee

... Plymouth County...
   Middleboro 2.15 723 am 4/16 co-op observer
   Plymouth 2.10 1136 am 4/16 ham radio
   6 E Middleborough 2.10 600 am 4/16 cocorahs
   2 WNW east bridgewat 1.92 700 am 4/16 cocorahs
   3 WNW Kingston 1.88 700 am 4/16 cocorahs
   2 S Hingham 1.70 730 am 4/16 cocorahs

... Suffolk County...
   1 W Brighton 1.33 700 am 4/16 cocorahs
   N Winthrop 0.89 800 am 4/16 cocorahs

... Worcester County...
   2 ESE Holden 1.62 800 am 4/16 cocorahs
   2 NNW Milford 1.55 700 am 4/16 cocorahs
   2 SSW Fitchburg 0.90 600 am 4/16 cocorahs

New Hampshire

... Cheshire County...
   WNW west chesterfiel 1.13 700 am 4/16 cocorahs

... Hillsborough County...
   2 S New Boston 1.15 600 am 4/16 cocorahs
   1 SSW Mont Vernon 0.94 630 am 4/16 cocorahs
   4 NNE Amherst 0.91 700 am 4/16 cocorahs
   3 ENE Hollis 0.90 700 am 4/16 cocorahs

Rhode Island

... Bristol County...
   Bristol 1.60 1129 am 4/16 ham radio

... Kent County...
   2 ESE East Greenwich 2.06 700 am 4/16 cocorahs
   Coventry 2.00 1130 am 4/16 ham radio

... Newport County...
   1 E Little Compton 1.83 700 am 4/16 cocorahs

... Providence County...
   west Glocester 2.51 822 am 4/16 trained spotter
   3 se west Glocester 2.36 700 am 4/16 cocorahs
   Glocester 2.10 1132 am 4/16 ham radio
   2 E Cranston 2.08 700 am 4/16 cocorahs
   East Providence 1.93 1133 am 4/16 ham radio
   1 SW Pawtucket 1.78 800 am 4/16 cocorahs
   Johnston 1.72 1131 am 4/16 ham radio
   4 E Cranston 1.70 800 am 4/16 cocorahs

... Washington County...
   North Kingstown 2.32 1120 am 4/16 ham radio
   Charlestown 2.06 1128 am 4/16 ham radio
   1 NW Kingston 2.04 900 am 4/16 cocorahs
   Hope Valley 1.94 513 am 4/16 trained spotter
   6 W Kingston 1.90 800 am 4/16 cocorahs
   NW Wakefield-peaceda 1.89 700 am 4/16 cocorahs
   4 S Hope Valley 1.73 700 am 4/16 cocorahs


***********************peak wind gust***********************

Location Max wind time/date comments
                        gust of
                         mph measurement

Connecticut

... Hartford County...
   3 se Hartford 41 322 PM 4/15 Airport ASOS

... Windham County...
   3 NE Willimantic 44 334 PM 4/15 Airport ASOS

Massachusetts

... Barnstable County...
   East Falmouth 53 334 PM 4/15 none
   Eastham 48 721 PM 4/15 none
   2 NE Hyannis 41 1007 PM 4/15 Airport ASOS

... Bristol County...
   Fall River 60 1127 am 4/16 ham radio
   3 NW New Bedford 50 419 PM 4/15 Airport ASOS

... Dukes County...
   3 S Vineyard Haven 43 604 PM 4/15 Airport ASOS

... Franklin County...
   2 se Orange 42 515 PM 4/15 Airport ASOS

... Nantucket County...
   2 ESE Nantucket 53 1242 am 4/16 Airport ASOS

... Norfolk County...
   3 SSW Milton 66 433 PM 4/15 ASOS
   1 ENE Norwood 48 358 PM 4/15 Airport ASOS

... Plymouth County...
   4 SW Plymouth 47 629 PM 4/15 Airport ASOS

... Suffolk County...
   1 N East Boston 58 328 PM 4/15 Logan Airport ASOS

Rhode Island

... Kent County...
   2 NNW Warwick 48 508 PM 4/15 tf Green Airport ASOS

... Newport County...
   4 NE Newport 40 753 PM 4/15 Airport ASOS



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Block Island Water Tower, New Shoreham, RI

Updated: 9:01 PM EDT

Temperature: 42.0 °F Dew Point: -40 °F Humidity: - Wind: NNE at 13.5 mph Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Champlins Road - near Coast Guard, Block Island, RI

Updated: 9:01 PM EDT

Temperature: 42.2 °F Dew Point: 27 °F Humidity: 54% Wind: North at 5.0 mph Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: West Beach Quonnie, Quonochontaug, RI

Updated: 8:52 PM EDT

Temperature: 39.7 °F Dew Point: 19 °F Humidity: 43% Wind: ESE at 5.0 mph Pressure: 30.51 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Quonnie, Charlestown, RI

Updated: 9:01 PM EDT

Temperature: 39.2 °F Dew Point: 19 °F Humidity: 44% Wind: ESE at 6.0 mph Pressure: 30.52 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: RAWS NINIGRET RI US, Wakefield, RI

Updated: 8:25 PM EDT

Temperature: 41 °F Dew Point: 18 °F Humidity: 39% Wind: NNE at 6 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Near Charlestown Beach, Charlestown, RI

Updated: 8:50 PM EDT

Temperature: 38.7 °F Dew Point: 24 °F Humidity: 56% Wind: North at 1.0 mph Pressure: 30.49 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: the Breeze, Charlestown, RI

Updated: 9:01 PM EDT

Temperature: 37.0 °F Dew Point: 22 °F Humidity: 53% Wind: Calm Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Snug Harbor, RI, Wakefield, RI

Updated: 9:01 PM EDT

Temperature: 39.3 °F Dew Point: 18 °F Humidity: 42% Wind: SE at 4.0 mph Pressure: 30.54 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Westerly, RI

Updated: 8:59 PM EDT

Temperature: 40.0 °F Dew Point: 21 °F Humidity: 47% Wind: NE at 7.0 mph Pressure: 30.56 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Pasquiset Pond, Charlestown, RI

Updated: 8:49 PM EDT

Temperature: 39.1 °F Dew Point: 22 °F Humidity: 50% Wind: NNW at 1.0 mph Pressure: 30.46 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Stone Cove Marina, Wakefield, RI

Updated: 9:01 PM EDT

Temperature: 39.7 °F Dew Point: 19 °F Humidity: 43% Wind: NNE at 9.0 mph Pressure: 30.53 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Narragansett, Narragansett, RI

Updated: 8:57 PM EDT

Temperature: 41.1 °F Dew Point: 21 °F Humidity: 45% Wind: North at 8.0 mph Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: APRSWXNET Narragansett RI US, Wakefield, RI

Updated: 8:32 PM EDT

Temperature: 41 °F Dew Point: 22 °F Humidity: 47% Wind: NNW at 2 mph Pressure: 30.50 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Fishers Island, Fishers Islandd, NY

Updated: 8:54 PM EDT

Temperature: 41.0 °F Dew Point: 25 °F Humidity: 54% Wind: Calm Pressure: 30.49 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Montauk School, NY

Updated: 9:01 PM EDT

Temperature: 37.0 °F Dew Point: 26 °F Humidity: 65% Wind: Calm Pressure: 30.86 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Canonchet Woods, Hopkinton, RI

Updated: 9:00 PM EDT

Temperature: 37.8 °F Dew Point: 16 °F Humidity: 40% Wind: Calm Pressure: 30.59 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Masons Island Marina, Stonington, CT

Updated: 9:01 PM EDT

Temperature: 41.4 °F Dew Point: 21 °F Humidity: 44% Wind: NE at 4.0 mph Pressure: 30.53 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Hawks Nest Point, Fishers Island, NY

Updated: 9:01 PM EDT

Temperature: 41.2 °F Dew Point: 26 °F Humidity: 54% Wind: NNE at 6.0 mph Pressure: 30.52 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Richmond, Richmond, RI

Updated: 9:01 PM EDT

Temperature: 36.1 °F Dew Point: 20 °F Humidity: 51% Wind: Calm Pressure: 30.52 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: MARITIME , Jamestown, RI

Updated: 8:00 PM EDT

Temperature: 42 °F Dew Point: 17 °F Humidity: 35% Wind: North at 13 mph Pressure: 30.47 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Ferry Watch, Fishers Island, NY

Updated: 8:56 PM EDT

Temperature: 39.5 °F Dew Point: 24 °F Humidity: 55% Wind: North at 7.0 mph Pressure: 30.54 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Noank, Noank, CT

Updated: 9:00 PM EDT

Temperature: 38.5 °F Dew Point: 11 °F Humidity: 32% Wind: Calm Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Taunton Massachusetts 
740 PM EDT Wednesday Apr 16 2014 


Synopsis... 
high pressure will bring dry...but seasonably cool weather to the 
region through Friday. Weak offshore low pressure may bring a 
shower or two late Friday night into early Saturday across the 
South Coast. Otherwise...it should remain dry through Monday. A 
cold front could trigger showers Monday night through Tuesday 
evening. 


&& 


Near term /until 6 am Thursday morning/... 


Updated at 715 PM... 
few changes needed to forecast. Winds diminishing but may have enough 
low level pressure gradient so that only in most sheltered locations 
will the wind totally decouple from top of boundary layer. 
Temperatures may approach record lows in a few locations given 
clear skies and very low dewpoints generally in the teens. 


Tonight... 


Surface high pressure sweeping east across northern New England. In 
response...surface winds gradually back towards the northeast. 
Onshore flow off the Gulf of Maine anticipated for the eastern 
shoreline with the possibility of a few scattered clouds...whereas 
across the interior under clear skies light and variable winds will 
allow for effective nocturnal cooling beneath an unseasonably cold 
airmass. Could plausibly see temperatures fall to near record lows 
/mainly for Worcester and Hartford/. Lows around the low- to middle-20s 
for the interior...warmer around the freezing mark for the shores. 


Keep in mind that the growing season for areas along the South- 
Coast does not begin until April 20th...so there will be no freeze 
headlines with this forecast package. 


&& 


Short term /6 am Thursday morning through Thursday night/... 
Thursday... 


Surface high pressure shifts northeast as an elongated area of low pressure 
and accompanying stalled frontal boundary shift back to the north. 
Tightening pressure-gradient lends to increasing easterly onshore flow. 
The long fetch off the colder waters will result in a chilly day for 
the eastern-coast of New England. Moisture pooling beneath a dry-air 
inversion coupled with boundary-layer mixing per sunshine should 
result in scattered to broken decks for a brief period. Otherwise 
across the interior expect a milder day as the colder airmass aloft 
retreats north with the surface high pressure. Highs in the upper-40s to 
low-50s. 


Thursday night... 


Stalled offshore front to the south shifts further north in response 
to an area of low pressure along the boundary. Along with a continued 
breezy onshore easterly flow...clouds begin to increase across the 
region keeps lows along the coastline around the freezing mark while 
elsewhere lows will fall into the middle- to upper-20s. Easterly winds 
will limit effective radiational cooling though sheltered valleys 
over north/west New England may drop a few degrees lower. 


&& 


Long term /Friday through Wednesday/... 
highlights... 


* cool near the coast on Friday...otherwise seasonable temperatures return 
* few showers could brush the cape and islands Sat 
morning...otherwise dry through Monday 
* chance of showers Monday night through Tuesday evening 


Split flow continues across the conterminous USA with southern New 
England influenced mostly by the northern stream. Medium range 
models depict reasonable agreement in large scale pattern but with 
some differences on timing and configuration of short wave energy. 
Operational models and ensembles suggest an amplification to the 
flow toward the middle part of next week. Both the 12z European model (ecmwf) and 
GFS depict milder 850 mb temperatures compared with the last few prior 
runs. 


Details... 


Friday... 


High pressure slides over region but sea breezes should keep both 
east and south coasts quite chilly given ocean temperatures still in the 
lower 40s across adjacent coastal waters. 


Friday night and Saturday... 


Southern New England remains sandwiched between northern and 
southern stream energy. Cannot rule out a sprinkle or light shower 
here and there but kept probability of precipitation in slight chance range most area. 
There does seem to be just enough of a risk for a southern stream 
system to brush the South Coast and islands and did keep a low 
chance pop there. However...low confidence on whether the rain 
shield will actually make it to the South Coast. As both the 
northern and southern stream short wave energy gets embedded into 
the denser upper air network...confidence should grow on the 
eventual solution. 


Sunday and Monday... 


High confidence of remaining dry through Sunday into Monday morning 
and moderate confidence of still remaining dry through Monday 
afternoon. Overrunning warm air ahead of next system will likely 
bring middle to high clouds into forecast area Monday 
afternoon...especially across northern zones...but likely 
remaining dry in our area. Southwest surface flow combined with 
850 mb temperatures in the neighborhood of 6c to 8c may allow afternoon 
temperatures into the lower 60s to the East Coast. 


Monday night through Tuesday evening... 


The northern stream flow brings a cold front across the region 
Tuesday. There is also some southern stream energy that may or may 
not remain detached from the northern flow. For now think quantitative precipitation forecast will 
be fairly light but this could change if the southern stream 
should end up phasing with the northern stream. 


Wednesday... 


Dry and considerably cooler air follows in the north to northwest flow 
behind the cold front...although the April sun and downsloping should 
temper the impact from cooler temperatures aloft with highs probably near 
seasonable levels. 


&& 


Aviation /00z Thursday through Monday/... 
low...less than 30 percent. 
Moderate...30 to 60 percent. 
High...greater than 60 percent. 


Short term /through Thursday night/...high confidence. 


Tonight through Thursday...VFR. Northwest winds continuing to diminish but 
probably remain light from north and then NE toward daybreak. Will see 
winds on the increase out of the east through Thursday. There is a 
risk of scattered low-VFR ceilings. 
Thursday night...bkn-ovc low-VFR to MVFR ceilings will develop across 
southeast New England with continued breezy easterly 
winds...especially vicinity of the South Coast. 


Kbos terminal...high confidence. 


Kbdl terminal...high confidence. 


Outlook...Friday through Monday... 


Friday...VFR. 


Friday night into Saturday morning...VFR. Low probability of MVFR 
in scattered showers S of a pym-wst line. 


Saturday afternoon through Monday...VFR. 


&& 


Marine... 
forecaster confidence levels... 


Low...less than 30 percent. 
Moderate...30 to 60 percent. 
High...greater than 60 percent. 


Short term /through Thursday night/...high confidence. 


Winds diminishing some over the coastal waters but seas will take 
long to subside and Small Craft Advisory likely needed to remain 
through Thursday and possibly into Thursday evening outside of 
harbors...bays and some sounds. Seas expected to persist 6 to 8 
feet across outer waters into Thursday. Surface gradient tightens some 
in response to especially strong surface high moving into 
Maritimes and surface low development off middle Atlantic coast. 


Outlook...Friday through Monday... 


Friday through Sat morning...persistent easterly flow due to offshore 
low pressure may keep seas elevated into Small Craft Advisory for 
waters south of New England. 


Sat afternoon and night...northwest flow behind low pressure that forms on 
cold front may be enough to generate Small Craft Advisory 
headlines. 


Sunday through Monday morning...light winds and subsiding seas 
anticipated. 


Monday afternoon...increasing SW flow and fetch may cause winds and 
seas to reach Small Craft Advisory thresholds of 25 knots gusts at 
least across the near shore waters. There may be enough fetch to 
build seas to 5 feet or more across the coastal waters south of 
New England. 


&& 


Hydrology... 
several points along the CT river are flooding or will be in minor 
flood soon. Warnings continue for the CT river at... 


Thompsonville 
Hartford 
Middle Haddam 
Montague 
Northampton 


Rainfall yesterday and snowmelt over the last few days has the 
mainstem CT river in minor flood...although projected to go into 
moderate flood at Middle Haddam. 


&& 


Box watches/warnings/advisories... 
CT...none. 
Massachusetts...none. 
New Hampshire...none. 
Rhode Island...none. 
Marine...Small Craft Advisory until 2 am EDT Friday for anz235-237. 
Small Craft Advisory until 8 am EDT Friday for anz250-254>256. 


&& 


$$ 
Synopsis...sipprell/Thompson 
near term...sipprell/Thompson 
short term...sipprell 
long term...Thompson 
aviation...sipprell/Thompson 
marine...sipprell/Thompson 
hydrology...dellicarpini/Thompson 






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