Petersburg, Alaska Weather Conditions

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Current Conditions

  • 48°
  • Partly Cloudy
  • Wind: SE 9 mph
  • Humidity: 66%
  • Visibility: 10.0 miles
  • Dew Point: 37°
  • Pressure: 29.19 in. 0

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Next 12 Hours

10  pm
1  am
4  am
7  am
10  am
Rain Showers
Rain Showers
Overcast
Overcast
Chance of Rain
Chance of Rain
Rain
Rain
Rain
Rain
48°
45°
48°
46°
46°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Rain
  • High: 52 °
  • Low: 41 °
  • Rain
  • Thursday
  • Mostly Cloudy
  • High: 50 °
  • Low: 41 °
  • Mostly Cloudy
  • Friday
  • Chance of Rain
  • High: 50 °
  • Low: 37 °
  • Chance of Rain
  • Saturday
  • Partly Cloudy
  • High: 48 °
  • Low: 34 °
  • Partly Cloudy
  • Sunday
  • Chance of Rain
  • High: 46 °
  • Low: 30 °
  • Chance of Rain

Forecast for Petersburg, Alaska

Updated: 7:00 PM AKDT on October 21, 2014

Strong wind through Wednesday morning...
  • Tuesday

    Overcast with rain, then a chance of rain in the afternoon. High of 50F. Breezy. Winds from the East at 10 to 20 mph. Chance of rain 90%.

  • Tuesday Night

    Overcast with rain showers, then a chance of rain after midnight. Low of 45F. Windy. Winds from the ESE at 10 to 30 mph with gusts to 35 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Wednesday

    Overcast with rain, then a chance of rain in the afternoon. High of 52F. Winds from the ESE at 5 to 10 mph shifting to the NE in the afternoon. Chance of rain 90%.

  • Wednesday Night

    Partly cloudy in the evening, then overcast with a chance of rain. Low of 41F. Winds from the ENE at 5 to 10 mph. Chance of rain 50%.

  • Thursday

    Overcast in the morning, then mostly cloudy. High of 50F. Winds from the ENE at 5 to 10 mph.

  • Thursday Night

    Overcast in the evening, then mostly cloudy. Low of 41F. Winds less than 5 mph.

  • Friday

    Partly cloudy with a chance of rain in the afternoon. High of 50F. Winds less than 5 mph. Chance of rain 30%.

  • Friday Night

    Overcast with a chance of rain. Low of 37F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Saturday

    Partly cloudy in the morning, then overcast. High of 48F. Winds less than 5 mph.

  • Saturday Night

    Partly cloudy. Low of 34F. Winds less than 5 mph.

  • Sunday

    Mostly cloudy with a chance of rain. High of 46F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday Night

    Partly cloudy with a chance of rain. Low of 30F. Winds less than 5 mph. Chance of rain 40%.

  • Monday

    Partly cloudy with a chance of rain. High of 45F. Winds less than 5 mph. Chance of rain 20%.

  • Monday Night

    Partly cloudy with a chance of snow. Low of 34F. Winds from the ESE at 5 to 10 mph. Chance of snow 70%.

  • Tuesday

    Mostly cloudy with a chance of rain. High of 43F. Winds less than 5 mph. Chance of rain 40%.

  • Tuesday Night

    Partly cloudy. Low of 28F. Winds from the NNE at 5 to 10 mph.

  • Wednesday

    Clear. High of 41F. Winds from the ENE at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 28F. Winds less than 5 mph.

  • Thursday

    Partly cloudy. High of 41F. Winds from the East at 5 to 10 mph.

  • Thursday Night

    Partly cloudy with a chance of rain. Low of 28F. Winds less than 5 mph. Chance of rain 30%.

  • Friday

    Mostly cloudy with a chance of rain. High of 41F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Friday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 28F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.

  • Saturday

    Clear. High of 43F. Winds from the ESE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: RAWS KAKE AK US, Kake, AK

Updated: 8:55 PM AKDT

Temperature: 44 °F Dew Point: 41 °F Humidity: 90% Wind: North at 7 mph Pressure: - Hourly Precipitation: 0.01 in Windchill: 40 °F Graphs

Location: Papke's Landing, Petersburg, AK

Updated: 10:09 PM AKDT

Temperature: 44.4 °F Dew Point: 44 °F Humidity: 97% Wind: Calm Pressure: 29.26 in Hourly Precipitation: - Windchill: 44 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Southeast Alaska forecast discussion 
National Weather Service Juneau Alaska 
402 PM akdt Tuesday Oct 21 2014 


Short term...a vigorous low over the southeast Gulf of Alaska has 
spread its frontal band north across the region and is now in the 
vicinity of Icy Strait, continuing northward. Numerous convective 
cells behind the front are rotating northward. There was 
sufficient instability to support plenty of marine thunderstorm 
activity. Lightning strikes detected over the eastern Pacific, haida 
gwaii, hecate Strait and south to Vancouver Island. Think that 
this activity will be spreading north and out over the eastern 
half of the Gulf tonight. Thunder should be limited to coastal 
areas. 


The low will be moving west to the west central Gulf of Alaska by 
Wednesday morning. However before it pulls away the second wrap 
will graze the southern coast. Am expecting gusty winds with 
strong wind headlines for a large portion of southern Panhandle 
through the evening hours. 


Will begin to see some improvement in the weather and winds as the 
low retreats west. Seas in the coastal waters in the upper teens 
and that will persist through tonight and slowly recede as well. 


Long term...model divergence early on as a wave develops along 
the pre-existing frontal boundary associated with the low discussed 
above. These two features will rotate around each other, with the 
parent filling and the child deepening while approaching the 
southeast outer coast Wednesday night. The second low will then 
remain somewhat anchored over the southeastern Gulf through Friday 
night while weakening before exiting the forecast area to the 
southeast. Troughing will remain over the eastern Gulf with 
multiple embedded middle level circulations. The various lows and 
troughs will continue to produce scattered showers and/or a chance 
of rain through much of the upcoming week. 


Attention then turns to Tropical Storm Ana. Morning model guidance 
was very disappointing with GFS keeping the remnants well to the 
south and tracking them into western Continental U.S. While European model (ecmwf) was 
tracking an extremely deep system right into the eastern Gulf 
early next week. Based on the current location of the storm just 
west of Hawaii, it did not seem likely that it could get driven 
far enough north in the prevailing westerlies to enter the Gulf. 
Similar thinking by wpc. 12z European model (ecmwf) then came in much better 
agreement with the morning GFS and while the GFS is still 
exhibiting some run to run variability, the afternoon run 
substantially in agreement with the morning run. 


Used an ensemble approach Wednesday night through Saturday night 
for pressure and wind, then transitioned to wpc. Used GFS, Gem, 
and European model (ecmwf) for pop/quantitative precipitation forecast Wednesday night through Friday night, 
blending in progressively more of the existing grids. No changes 
to temperatures. Overall forecast confidence is average. 


&& 


Ajk watches/warnings/advisories... 
public...strong wind through late tonight for akz026. 
Strong wind until 1 am akdt Wednesday for akz027-028. 
Strong wind until 7 PM akdt this evening for akz025. 
Strong wind through Wednesday morning for akz023. 
Marine...Gale Warning for pkz022-033-035-036-041>043-051. 
Small Craft Advisory for pkz011>013-021-031-032-034-052. 


&& 


$$ 


Bezenek/fritsch 


Visit US at http://www.Weather.Gov/Juneau 
















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