Allentown, Pennsylvania Weather Conditions

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Current Conditions

  • 36°
  • Clear
  • Wind: North 14 mph
  • Humidity: 48%
  • Visibility: 10.0 miles
  • Dew Point: 18°
  • Pressure: 30.42 in. +
  • Heat Index: 27

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Next 12 Hours

11  am
2  pm
5  pm
8  pm
11  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
39°
46°
48°
41°
34°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Clear
  • High: 54 °
  • Low: 28 °
  • Clear
  • Thursday
  • Partly Cloudy
  • High: 54 °
  • Low: 34 °
  • Partly Cloudy
  • Friday
  • Mostly Cloudy
  • High: 57 °
  • Low: 37 °
  • Mostly Cloudy
  • Saturday
  • Chance of Rain
  • High: 64 °
  • Low: 39 °
  • Chance of Rain
  • Sunday
  • Clear
  • High: 63 °
  • Low: 41 °
  • Clear

Forecast for Allentown, Pennsylvania

Updated: 11:00 AM EDT on April 16, 2014

  • Wednesday

    Clear. High of 54F. Breezy. Winds from the NNW at 10 to 20 mph.

  • Wednesday Night

    Clear. Low of 28F. Winds from the NE at 5 to 10 mph.

  • Thursday

    Partly cloudy. High of 54F. Winds from the ENE at 10 to 15 mph shifting to the North in the afternoon.

  • Thursday Night

    Partly cloudy. Low of 34F. Winds from the ENE at 5 to 10 mph.

  • Friday

    Mostly cloudy. High of 57F. Winds from the ESE at 5 to 10 mph.

  • Friday Night

    Overcast. Low of 37F. Winds from the SSE at 5 to 10 mph.

  • Saturday

    Mostly cloudy with a chance of rain in the afternoon. High of 64F. Winds from the West at 5 to 20 mph. Chance of rain 20%.

  • Saturday Night

    Clear. Low of 39F. Winds from the NW at 10 to 15 mph.

  • Sunday

    Clear. High of 63F. Breezy. Winds from the NNW at 10 to 20 mph.

  • Sunday Night

    Clear. Low of 41F. Winds from the NNE at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 63F. Winds from the SSE at 5 to 15 mph.

  • Monday Night

    Partly cloudy with a chance of rain. Low of 45F. Winds from the SSE at 5 to 10 mph. Chance of rain 50%.

  • Tuesday

    Mostly cloudy with a chance of rain. High of 73F. Winds from the ESE at 5 to 10 mph. Chance of rain 50%.

  • Tuesday Night

    Partly cloudy. Low of 48F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 68F. Winds from the NW at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 48F. Winds less than 5 mph.

  • Thursday

    Clear with a chance of a thunderstorm. High of 79F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday Night

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

  • Friday

    Partly cloudy. High of 81F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 55F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday

    Mostly cloudy with a chance of a thunderstorm. High of 70F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Saturday Night

    Clear with a chance of a thunderstorm. Low of 55F. Winds less than 5 mph. Chance of rain 20%.

Severe Weather Alert Descriptions

 Record Report  Statement as of 02:45 am EDT on April 16, 2014


... Record daily maximum snowfall tied at Atlantic City, New
Jersey...

A record snowfall of a trace was tied at Atlantic City, New Jersey
yesterday. This ties the old record of a trace set in 1975.



 Public Information Statement  Statement as of 8:48 am EDT on April 16, 2014


The following are final unofficial observation totals taken for the
weather that had affected our region. Appreciation is extended to
Highway departments... cooperative observers... Skywarn spotters and
social media for these reports. This summary is also available on our
home Page at weather.Gov/phi

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

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

New Jersey

... Atlantic County...
   Estell Manor 0.4 730 am 4/16 co-op observer
   Atlantic City airpor T 100 am 4/16 ASOS

... Burlington County...
   Mount Holly WFO 0.1 100 am 4/16 NWS office

... Camden County...
   Atco 0.5 1222 am 4/16 social media

... Middlesex County...
   Metuchen 0.4 117 am 4/16 public

... Monmouth County...
   Freehold 1.5 226 am 4/16 public
   Manalapan 1.0 138 am 4/16 trained spotter
   Colts Neck 0.7 700 am 4/16 cocorahs

... Morris County...
   Roxbury TWP 0.5 1153 PM 4/15 social media
   Boonton 0.5 110 am 4/16 social media
   Randolph TWP 0.2 1018 PM 4/15 cocorahs

... Sussex County...
   Highland Lakes 1.5 1145 PM 4/15 trained spotter
   Wantage 1.0 456 am 4/16 trained spotter

Pennsylvania

... Carbon County...
   Lake Harmony 2.0 1142 PM 4/15 trained spotter

... Lehigh County...
   Slatington 1.2 1045 PM 4/15 trained spotter
   Alburtis 0.6 955 PM 4/15 cocorahs
   Zionsville 0.5 1023 PM 4/15 public
   Allentown Airport 0.3 100 am 4/16 ASOS

... Monroe County...
   Tobyhanna 2.0 1008 PM 4/15 public
   East Stroudsburg 0.5 1200 am 4/16 social media

... Northampton County...
   Danielsville 1.0 955 PM 4/15 trained spotter

... Philadelphia County...
   Philadelphia Intl Ai T 100 am 4/16 ASOS


**********************24 hour snowfall**********************

Location 24 hour time/date comments
                     snowfall of
                     /inches/ measurement

Delaware

... Sussex County...
   1 SW Seaford 0.1 700 am 4/16 cocorahs

New Jersey

... Mercer County...
   1 NNW Lawrence TWP 0.3 530 am 4/16 cocorahs
   2 WSW Robbinsville T 0.1 700 am 4/16 cocorahs

... Middlesex County...
   1 NNE Woodbridge TWP 0.2 600 am 4/16 cocorahs

... Monmouth County...
   4 SSW Howell TWP 0.6 705 am 4/16 cocorahs
   1 NW Red Bank 0.2 700 am 4/16 cocorahs

... Morris County...
   1 W Randolph TWP 0.8 710 am 4/16 cocorahs
   NNW Rockaway 0.2 800 am 4/16 cocorahs

... Ocean County...
   1 SW Point Pleasant 0.3 700 am 4/16 cocorahs
   3 SSE Berkeley TWP 0.2 700 am 4/16 cocorahs

... Sussex County...
   3 WNW Montague TWP 0.6 700 am 4/16 cocorahs

Pennsylvania

... Berks County...
   3 SSW Mohnton 1.5 630 am 4/16 cocorahs
   5 SW Alburtis 1.1 700 am 4/16 cocorahs

... Carbon County...
   7 NW Chapman 0.5 740 am 4/16 cocorahs


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

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

Delaware

... New Castle County...
   Hockessin 1.55 445 am 4/16 deos
   Greenville 1.54 444 am 4/16 deos

... Sussex County...
   Lewes 2.12 448 am 4/16 deos
   Delmar 2.07 442 am 4/16 deos
   Selbyville 1.69 450 am 4/16 deos
   Rehoboth Beach 1.68 450 am 4/16 deos
   Stockley 1.63 451 am 4/16 deos
   Indian River Acres 1.62 445 am 4/16 deos
   Bethany Beach 1.56 441 am 4/16 deos
   Millsboro 1.52 449 am 4/16 deos
   Jones Crossroads 1.52 446 am 4/16 deos
   Harbeson 1.51 444 am 4/16 deos
   Laurel 1.43 447 am 4/16 deos

New Jersey

... Hunterdon County...
   Pittstown 2.42 1130 PM 4/15 njwxnet

... Middlesex County...
   Iselin 1.52 1134 PM 4/15 trained spotter

... Morris County...
   Netcong 2.29 1130 PM 4/15 njwxnet
   Randolph TWP 1.77 1024 PM 4/15 cocorahs

... Sussex County...
   Highland Lakes 2.15 800 PM 4/15 trained spotter
   Walpack TWP 1.62 1130 PM 4/15 njwxnet

... Warren County...
   Pequest 2.16 1130 PM 4/15 njwxnet
   Stewartsville 2.13 1130 PM 4/15 njwxnet

Pennsylvania

... Chester County...
   Spring City 2.50 730 am 4/16 NWS employee
   Glenmoore 2.36 443 am 4/16 deos
   West Chester 2.20 453 am 4/16 deos
   Devault 2.11 443 am 4/16 deos
   West Grove 2.07 454 am 4/16 deos
   Kennett Square 2.04 446 am 4/16 deos
   Nottingham 2.03 449 am 4/16 deos
   Atglen 1.99 441 am 4/16 deos
   Chester Springs 1.91 442 am 4/16 deos
   Marshallton 1.75 448 am 4/16 deos
   Warwick 1.53 453 am 4/16 deos


**********************24 hour rainfall**********************

Location 24 hour time/date comments
                     rainfall of
                     /inches/ measurement

Delaware

... Kent County...
   5 WSW Dover 1.00 700 am 4/16 cocorahs
   6 WNW Dover 0.94 700 am 4/16 cocorahs

... New Castle County...
   2 WNW Newport 1.42 700 am 4/16 cocorahs
   2 NW Newark 1.35 700 am 4/16 cocorahs
   4 SSW Newark 1.17 700 am 4/16 cocorahs
   5 S Newark 0.97 700 am 4/16 cocorahs
   1 SSE Middletown 0.70 700 am 4/16 cocorahs

... Sussex County...
   6 W Georgetown 1.63 700 am 4/16 cocorahs
   7 E Selbyville 1.53 700 am 4/16 cocorahs
   1 SW Seaford 1.48 700 am 4/16 cocorahs

Maryland

... Cecil County...
   7 NNW Elkton 1.51 600 am 4/16 cocorahs
   5 NW Elkton 1.43 720 am 4/16 cocorahs

... Talbot County...
   2 se Easton 1.13 700 am 4/16 cocorahs
   1 SSW Easton 1.03 700 am 4/16 cocorahs

New Jersey

... Atlantic County...
   5 NE Estell Manor 0.96 600 am 4/16 cocorahs

... Burlington County...
   1 W Medford Lakes 1.00 700 am 4/16 cocorahs
   2 SSE Medford TWP 0.70 800 am 4/16 cocorahs
   3 ENE Mount Laurel T 0.64 700 am 4/16 cocorahs

... Camden County...
   1 NE Collingswood 0.82 600 am 4/16 cocorahs
   2 SW Berlin 0.70 600 am 4/16 cocorahs
   1 ESE Merchantville 0.56 700 am 4/16 cocorahs

... Cape May County...
   1 NNW Woodbine 1.24 700 am 4/16 cocorahs
   WSW Wildwood Crest 1.10 740 am 4/16 cocorahs

... Cumberland County...
   2 N Bridgeton 0.78 645 am 4/16 cocorahs

... Gloucester County...
   W Pitman 0.98 630 am 4/16 cocorahs
   3 W Franklin TWP 0.83 700 am 4/16 cocorahs
   5 WNW Monroe TWP 0.77 600 am 4/16 cocorahs
   2 NNW Washington TWP 0.66 700 am 4/16 cocorahs

... Hunterdon County...
   1 N Frenchtown 2.36 700 am 4/16 cocorahs
   3 SW Lebanon 2.31 700 am 4/16 cocorahs
   4 NNW Stockton 2.11 700 am 4/16 cocorahs
   4 N Clinton TWP 1.95 700 am 4/16 cocorahs
   3 N Lebanon 1.90 600 am 4/16 cocorahs
   2 WSW Readington TWP 1.57 700 am 4/16 cocorahs

... Mercer County...
   2 NW Hopewell TWP 1.02 700 am 4/16 cocorahs
   2 se Ewing TWP 0.84 635 am 4/16 cocorahs
   1 NNE Ewing TWP 0.84 715 am 4/16 cocorahs
   2 WSW Robbinsville T 0.74 700 am 4/16 cocorahs
   1 NNW Lawrence TWP 0.63 530 am 4/16 cocorahs
   2 SSW Lawrence TWP 0.58 700 am 4/16 cocorahs

... Middlesex County...
   1 WSW Matawan 0.54 700 am 4/16 cocorahs
   1 NNE Woodbridge TWP 0.53 600 am 4/16 cocorahs

... Monmouth County...
   4 SSW Howell TWP 1.12 705 am 4/16 cocorahs
   E Fair Haven 0.98 700 am 4/16 cocorahs
   1 NW Red Bank 0.77 700 am 4/16 cocorahs
   1 W Long Branch 0.76 700 am 4/16 cocorahs

... Morris County...
   4 W Washington TWP 2.43 700 am 4/16 cocorahs
   1 W Randolph TWP 2.37 710 am 4/16 cocorahs
   1 ESE Roxbury TWP 1.90 700 am 4/16 cocorahs
   NNW Rockaway 1.75 800 am 4/16 cocorahs
   1 NW Boonton 1.21 700 am 4/16 cocorahs
   1 NW Chatham 0.91 700 am 4/16 cocorahs
   1 WSW Parsippany-tro 0.16 700 am 4/16 cocorahs

... Ocean County...
   5 N little egg harbo 1.21 500 am 4/16 cocorahs
   6 E Lacey TWP 1.16 530 am 4/16 cocorahs
   3 SSE Berkeley TWP 1.09 700 am 4/16 cocorahs
   3 NNW Stafford TWP 1.02 700 am 4/16 cocorahs
   1 SW Point Pleasant 0.85 700 am 4/16 cocorahs
   2 NW Stafford TWP 0.82 800 am 4/16 cocorahs
   1 SSW Berkeley TWP 0.79 800 am 4/16 cocorahs

... Salem County...
   1 NW Woodstown 0.77 700 am 4/16 cocorahs
   2 S Pittsgrove TWP 0.76 500 am 4/16 cocorahs

... Somerset County...
   1 NW Peapack-gladsto 1.88 700 am 4/16 cocorahs
   3 WSW Bridgewater tw 1.29 600 am 4/16 cocorahs
   1 ENE Bernards TWP 1.21 700 am 4/16 cocorahs
   2 NNE Montgomery TWP 0.89 800 am 4/16 cocorahs
   5 ESE Hillsborough T 0.78 700 am 4/16 cocorahs

... Sussex County...
   3 WNW Montague TWP 1.17 700 am 4/16 cocorahs
   2 SW Wantage TWP 1.13 700 am 4/16 cocorahs

... Warren County...
   3 WNW Mansfield TWP 2.14 600 am 4/16 cocorahs
   1 ENE Washington 1.80 600 am 4/16 cocorahs

Pennsylvania

... Berks County...
   5 SW Alburtis 2.15 700 am 4/16 cocorahs
   3 SSW Mohnton 1.22 630 am 4/16 cocorahs

... Bucks County...
   3 NE Langhorne 0.65 600 am 4/16 cocorahs
   1 WSW Penndel 0.64 700 am 4/16 cocorahs

... Chester County...
   1 SSW Spring City 2.40 700 am 4/16 cocorahs
   2 se West Chester 2.29 700 am 4/16 cocorahs
   3 W West Grove 2.16 700 am 4/16 cocorahs
   4 NNE Kennett Square 1.90 720 am 4/16 cocorahs
   2 ENE Landenberg 1.82 730 am 4/16 cocorahs

... Montgomery County...
   1 NNW Souderton 2.92 730 am 4/16 cocorahs
   2 NNE Pottstown 2.56 700 am 4/16 cocorahs
   2 WSW Lansdale 2.50 700 am 4/16 cocorahs
   3 S Harleysville 2.41 640 am 4/16 cocorahs
   SSW Hatfield 2.20 600 am 4/16 cocorahs
   2 WSW Hatfield 2.18 650 am 4/16 cocorahs
   3 SSW Kulpsville 1.96 700 am 4/16 cocorahs
   1 WSW North Wales 1.93 600 am 4/16 cocorahs
   1 SW North Wales 1.80 700 am 4/16 cocorahs

... Northampton County...
   E Martins Creek 1.83 700 am 4/16 cocorahs
   4 S Glendon 1.60 700 am 4/16 cocorahs

... Philadelphia County...
   5 NE Philadelphia 0.70 700 am 4/16 cocorahs



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: South Filmore Street, Allentown, PA

Updated: 11:54 AM EDT

Temperature: 41.4 °F Dew Point: 22 °F Humidity: 46% Wind: West at 8.3 mph Pressure: 30.40 in Hourly Precipitation: - Windchill: 36 °F Graphs

Location: South Allentown, Allentown, PA

Updated: 12:00 PM EDT

Temperature: 37.8 °F Dew Point: 21 °F Humidity: 50% Wind: NNW at 4.7 mph Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Park Ridge, Allentown, PA

Updated: 12:00 PM EDT

Temperature: 39.0 °F Dew Point: 17 °F Humidity: 40% Wind: Calm Pressure: 30.89 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Hokendauqua, Whitehall, PA

Updated: 12:00 PM EDT

Temperature: 38.7 °F Dew Point: 21 °F Humidity: 49% Wind: NW at 9.0 mph Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Fountain Hill - Near ST Lukes hosp., Fountain Hill, PA

Updated: 12:00 PM EDT

Temperature: 39.7 °F Dew Point: 18 °F Humidity: 42% Wind: North at 10.7 mph Pressure: 30.46 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Lower Saucon Township, Bethlehem, PA

Updated: 12:00 PM EDT

Temperature: 39.7 °F Dew Point: 20 °F Humidity: 45% Wind: Calm Pressure: 30.46 in Hourly Precipitation: 0.01 in Windchill: 40 °F Graphs

Location: South Mountain, Bethlehem, PA

Updated: 11:59 AM EDT

Temperature: 36.5 °F Dew Point: 21 °F Humidity: 53% Wind: West at 3.8 mph Pressure: 30.37 in Hourly Precipitation: - Windchill: 33 °F Graphs

Location: upper saucon township, Coopersburg, PA

Updated: 11:55 AM EDT

Temperature: 36.0 °F Dew Point: 22 °F Humidity: 56% Wind: North at 4.0 mph Pressure: 30.43 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: West Allentown, Wescosville, PA

Updated: 11:55 AM EDT

Temperature: 35.1 °F Dew Point: 21 °F Humidity: 57% Wind: NNW at 9.0 mph Pressure: 30.43 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Schnecksville, PA

Updated: 11:55 AM EDT

Temperature: 35.5 °F Dew Point: 21 °F Humidity: 56% Wind: North at 11.0 mph Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Macungie Area Weather, Macungie, PA

Updated: 12:00 PM EDT

Temperature: 35.8 °F Dew Point: 19 °F Humidity: 50% Wind: NNW at 7.0 mph Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Air Products Campus Wx, Allentown, PA

Updated: 12:00 PM EDT

Temperature: 38.7 °F Dew Point: 20 °F Humidity: 46% Wind: NW at 11.2 mph Pressure: 30.45 in Hourly Precipitation: 0.01 in Windchill: 32 °F Graphs

Location: Strawberry Acres, Coplay, PA

Updated: 11:59 AM EDT

Temperature: 35.3 °F Dew Point: 23 °F Humidity: 61% Wind: NNW at 7.0 mph Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Orefield, PA

Updated: 11:50 AM EDT

Temperature: 35.1 °F Dew Point: 20 °F Humidity: 54% Wind: NE at 5.0 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Wassergass, Hellertown, PA

Updated: 12:00 PM EDT

Temperature: 36.2 °F Dew Point: 19 °F Humidity: 50% Wind: West at 5.8 mph Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Fogelsville, PA

Updated: 11:59 AM EDT

Temperature: 35.5 °F Dew Point: 8 °F Humidity: 32% Wind: Calm Pressure: 30.35 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Jamesville, Bath, PA

Updated: 11:49 AM EDT

Temperature: 38.8 °F Dew Point: 24 °F Humidity: 56% Wind: NE at 6.3 mph Pressure: 30.21 in Hourly Precipitation: - Windchill: 34 °F Graphs

Location: Fogelsville, Fogelsville, PA

Updated: 12:00 PM EDT

Temperature: 38.5 °F Dew Point: 29 °F Humidity: 69% Wind: NNW at 1.3 mph Pressure: 30.33 in Hourly Precipitation: 0.07 in Windchill: 38 °F Graphs

Location: Breinigsville / Lower Macungie, Mertztown, PA

Updated: 11:55 AM EDT

Temperature: 37.6 °F Dew Point: 18 °F Humidity: 44% Wind: NW at 3.0 mph Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Kefallonia Drive, Hellertown, PA

Updated: 11:30 AM EDT

Temperature: 36.5 °F Dew Point: 22 °F Humidity: 55% Wind: South at 3.7 mph Pressure: 30.30 in Hourly Precipitation: - Windchill: 34 °F Graphs

Location: Saratoga Chase, Breinigsville, PA

Updated: 11:52 AM EDT

Temperature: 35.8 °F Dew Point: 20 °F Humidity: 53% Wind: NW at 1.0 mph Pressure: 30.44 in Hourly Precipitation: 0.01 in Windchill: 36 °F Graphs

Location: Bath, PA

Updated: 12:00 PM EDT

Temperature: 34.0 °F Dew Point: 21 °F Humidity: 59% Wind: NNW at 13.0 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Harlem, Barto, PA

Updated: 11:45 AM EDT

Temperature: 36.8 °F Dew Point: 25 °F Humidity: 62% Wind: WNW at 3.0 mph Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Lehigh Township, Walnutport, PA

Updated: 12:00 PM EDT

Temperature: 37.1 °F Dew Point: 24 °F Humidity: 58% Wind: NNE at 9.0 mph Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Mertztown, Mertztown, PA

Updated: 11:58 AM EDT

Temperature: 34.9 °F Dew Point: 17 °F Humidity: 49% Wind: NNW at 5.0 mph Pressure: 30.48 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Stunningly Beautiful Lehigh Valley, Palmer, PA

Updated: 12:00 PM EDT

Temperature: 42.1 °F Dew Point: 25 °F Humidity: 50% Wind: West at 12.7 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Nazareth Borough, Nazareth, PA

Updated: 12:00 PM EDT

Temperature: 35.9 °F Dew Point: 22 °F Humidity: 56% Wind: North at 4.0 mph Pressure: 30.41 in Hourly Precipitation: 0.11 in Windchill: 33 °F Graphs

Location: Milford Township, Quakertown, PA

Updated: 11:55 AM EDT

Temperature: 35.8 °F Dew Point: 20 °F Humidity: 54% Wind: NW at 5.0 mph Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Mount Holly New Jersey 
1022 am EDT Wednesday Apr 16 2014 


Synopsis... 
a strong cold frontal system will continue moving offshore today 
with high pressure building into the region for this afternoon and 
tonight. The high pressure system will move into New England on 
Thursday. By Friday another cold frontal boundary will approach the 
region moving through the region on Saturday. High pressure will 
once again move back into New England for Sunday and Monday as a low 
pressure system develops in the plains. This low pressure system 
will bring a warm front through the region Monday night and a cold 
frontal boundary through the region Tuesday. 


&& 


Near term /until 6 PM this evening/... 
the current forecast seems to be on track so only minor 
adjustments were made to temperatures and winds. Gusty northwest winds are 
continuing to blow this morning causing wind chills in the 20s in 
spite of ample sunshine. The morning visible satellite imagery 
shows some patches of snow cover over parts of eastern PA and New Jersey. 


All rain, sleet, and snow has moved offshore this morning and we 
are left with partly to mostly cloudy skies early this morning. 
The only exception to this is some lake effect snow 
showers/flurries across the Poconos within the northeast flow. 
These could continue for a few hours, but as the winds begin to 
swing more north then northeast, the flow off the lakes will get 
cut off and end the snow shower chance. We will keep isolated snow 
showers for a few hours across the Poconos this morning. 


High pressure will build across the area today allowing dry air to 
settle across the area through the day. Winds will be gusty 
through the morning hours into the early afternoon, but as the 
high builds over the area, the winds will lighten and the gusts 
should drop off. Temperatures today will not be able to warm much 
as 925 mb temperatures top out around -1 to -2 degrees celsius. 
MOS numbers were fairly close, so we used a blend of mav/met MOS, 
MOS guide, and European model (ecmwf) grids. This yields afternoon highs well below 
normal. 


&& 


Short term /6 PM this evening through 6 am Thursday/... 
high pressure will build across New England overnight tonight into 
Thursday morning, but still extend southward across our area. This 
will keep dry weather across the area through tonight and Thursday 
morning. MOS numbers were fairly close, so we used a blend of 
mav/met MOS and MOS guide. This yields overnight lows well below 
normal once again. The freeze watch will remain in place as 
temperatures are expected to drop to or below freezing by Thursday 
morning. We will keep frost in the grids as winds will be lighter 
than last night/this morning, but there may still be enough of a 
breeze in most places to prevent widespread frost from occurring. 


&& 


Long term /Thursday through Tuesday/... 
Thursday and Thursday night: looks to be a relatively quiet period 
under northeasterly flow from the frontal boundary offshore and high 
pressure to our north. The one concern may be some low clouds and 
drizzle that advect in from the ocean along the immediate coast. For 
now left it less than a slight chance for the far southeast portions of the 
County Warning Area in line with the sref and 00z NAM/GFS. Thinking the frost threat 
may be more limited this period due to several factors such as cloud 
cover and some wind with slightly warmer temperatures. Took frost 
out of the grids in this timeframe though some isolated frost can 
not be totally ruled out. Think once again the raw modeled two meter 
temperatures will be to cool with the 850 mb temperatures over 0c. Went 
close to mav/met guidance for temperatures during the day then 
went slightly warmer than mav/met at night due to clouds. 


Friday through Saturday night: low clouds and some spotty showers/ 
drizzle may still advect in for coastal regions on Friday going more 
in line with the NAM/GFS and sref. Though confidence on the extent 
on any potential low clouds and drizzle is lower than ideal. This 
should break up by Friday night along the coast with inland sections 
remaining partly cloudy. It appears that a frontal boundary 
will move from the Great Lakes through the region as a low pressure 
system tracks along the southeast coast staying separate, 
preventing a larger impacting event. Moisture ahead of the frontal 
passage on Saturday looks limited so only a few hundredths for 
quantitative precipitation forecast. Pretty tight spread among models and mex guidance with 
temperatures in these periods. 


Sunday and Sunday night: looks like a good weather day across the 
region. With plentiful sunshine went more toward mex/wpc guidance on 
temperatures. 


Monday through Tuesday night: next system will be a cold front 
approaching from the west by Monday night will include a chance of 
showers from Monday night through Tuesday night. Went more in line 
with the 00z GFS in this period as the new 00z European model (ecmwf) has a anomalous 
cut-off low over the southeast United States which acts a block for 
the front. Did go lower than wpc guidance for temperatures on Tuesday 
given potential rainfall. 


&& 


Aviation /14z Wednesday through Sunday/... 
the following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, 
kmiv, kacy and surrounding areas. 


VFR conditions will prevail through the taf period. Gusty northwest 
winds will diminish through the day as high pressure builds across 
the area. Winds will become more northeast later this evening and 
overnight as high pressure builds across New England. 


Outlook... 
Thursday through Friday night... mainly VFR, some scattered low 
ceilings Thursday night and Friday morning southeast of kphl. 


Saturday: mainly VFR, possible brief periods of MVFR in scattered 
showers. 


Saturday night and sunday: VFR. 


&& 


Marine... 
although still gusty...winds have diminished somewhat over the 
forecast waters as of middle morning. Therefore the gale warnings 
will be lowered at 1000 am and replaced by a Small Craft Advisory. 
Winds are expected to diminish below Small Craft Advisory criteria by late 
afternoon...however seas will likely remain at or near Small Craft Advisory levels. 
So the Small Craft Advisory for coastal waters GOES through tonight and will likely 
need to be extended beyond that. 


Otherwise...winds will remain gusty across the waters until high 
pressure builds across the area and helps diminish the winds. 
However, winds may remain gusty around 15-20 knots through 
tonight. Seas are expected to subside to around 4 feet later today 
into this evening, but should build again overnight as a northeast 
fetch takes place and will likely increase seas once again to 4-6 
feet. 


Outlook... 
Thursday through Friday night: Small Craft Advisory seas throughout the period on 
the ocean and some Small Craft Advisory gusts likely Thursday. 


Saturday and sunday: sub Small Craft Advisory seas and winds. 


&& 


Phi watches/warnings/advisories... 
PA...freeze watch from late tonight through Thursday morning for 
paz060-070-101>104-106. 
New Jersey...freeze watch from late tonight through Thursday morning for 
njz012-013-015>023-027. 
Delaware...freeze watch from late tonight through Thursday morning for 
dez001>003. 
Maryland...freeze watch from late tonight through Thursday morning for 
mdz008-012-015-019-020. 
Marine...Small Craft Advisory until 8 am EDT Thursday for anz450>455. 
Small Craft Advisory until 2 PM EDT this afternoon for anz430- 
431. 


&& 


$$ 
Synopsis...Gaines 
near term...amc 
short term...Robertson 
long term...Gaines 
aviation...Gaines/Robertson 
marine...amc/Gaines 












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