Petersburg, Alaska Weather Conditions

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Current Conditions

  • 39°
  • Mostly Cloudy
  • Wind: Calm
  • Humidity: 87%
  • Visibility: 10.0 miles
  • Dew Point: 36°
  • Pressure: 30.00 in. +

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Next 12 Hours

6  am
9  am
12  pm
3  pm
6  pm
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Overcast
Overcast
43°
43°
39°
39°
39°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Chance of Rain
  • High: 45 °
  • Low: 32 °
  • Chance of Rain
  • Tuesday
  • Rain
  • High: 39 °
  • Low: 30 °
  • Rain
  • Wednesday
  • Partly Cloudy
  • High: 36 °
  • Low: 32 °
  • Partly Cloudy
  • Thursday
  • Chance of Snow
  • High: 37 °
  • Low: 32 °
  • Chance of Snow
  • Friday
  • Chance of Rain
  • High: 39 °
  • Low: 28 °
  • Chance of Rain

Forecast for Petersburg, Alaska

Updated: 6:00 AM AKST on December 22, 2014

  • Monday

    Overcast with rain showers in the morning, then partly cloudy with a chance of rain. High of 45F. Winds from the SE at 5 to 15 mph. Chance of rain 20%.

  • Monday Night

    Overcast with a chance of snow and rain showers after midnight. Low of 32F with a windchill as low as 25F. Winds from the ENE at 5 to 15 mph. Chance of snow 40%.

  • Tuesday

    Overcast with rain, then a chance of rain in the afternoon. High of 39F. Winds from the ENE at 10 to 15 mph. Chance of rain 80%.

  • Tuesday Night

    Overcast with rain, then snow after midnight. Low of 30F. Winds from the North at 5 to 10 mph. Chance of precipitation 80% .

  • Wednesday

    Partly cloudy in the morning, then clear. High of 36F. Winds less than 5 mph.

  • Wednesday Night

    Mostly cloudy in the evening, then overcast. Low of 32F. Winds less than 5 mph.

  • Thursday

    Mostly cloudy with a chance of snow and rain showers, then a chance of rain in the afternoon. High of 37F with a windchill as low as 28F. Winds from the East at 5 to 10 mph. Chance of precipitation 50% .

  • Thursday Night

    Overcast with a chance of rain. Low of 32F. Winds from the SE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Friday

    Overcast in the morning, then mostly cloudy with a chance of rain. High of 39F. Winds from the ESE at 5 to 10 mph. Chance of rain 30%.

  • Friday Night

    Partly cloudy with a chance of snow. Low of 28F. Winds less than 5 mph. Chance of snow 20%.

  • Saturday

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

  • Saturday Night

    Partly cloudy. Low of 23F. Winds less than 5 mph.

  • Sunday

    Overcast. Fog early. High of 32F. Winds less than 5 mph.

  • Sunday Night

    Overcast with a chance of snow. Fog overnight. Low of 25F. Winds from the ESE at 5 to 10 mph. Chance of snow 40% with accumulations up to 2 in. possible.

  • Monday

    Overcast with a chance of snow. Fog early. High of 34F with a windchill as low as 19F. Winds from the East at 10 to 15 mph. Chance of snow 70% with accumulations up to 4 in. possible.

  • Monday Night

    Overcast with a chance of snow. Fog overnight. Low of 25F. Winds from the ESE at 5 to 10 mph. Chance of snow 60% with accumulations up to 3 in. possible.

  • Tuesday

    Overcast with a chance of snow. Fog early. High of 36F with a windchill as low as 27F. Winds from the ESE at 5 to 10 mph. Chance of snow 50% with accumulations up to 1 in. possible.

  • Tuesday Night

    Overcast with a chance of snow. Fog overnight. Low of 28F. Winds from the East at 5 to 10 mph. Chance of snow 50% with accumulations up to 2 in. possible.

  • Wednesday

    Mostly cloudy with a chance of a thunderstorm. High of 37F with a windchill as low as 28F. Winds from the East at 5 to 10 mph. Chance of rain 30%.

  • Wednesday Night

    Mostly cloudy. Low of 25F. Winds from the East at 5 to 10 mph.

  • Thursday

    Clear. High of 39F with a windchill as low as 28F. Winds from the ESE at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 25F. Winds from the ESE at 5 to 10 mph.

Severe Weather Alert Descriptions

 Record Report  Statement as of 12:22 am AKST on December 21, 2014



... Record temperature report...

Yesterday tied the record for highest temperature recorded for the
20th of December at 45 f. This temperature was last recorded for this
date in 1985.



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: RAWS KAKE AK US, Kake, AK

Updated: 5:55 AM AKST

Temperature: 38 °F Dew Point: 38 °F Humidity: 100% Wind: North at 3 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Papke's Landing, Petersburg, AK

Updated: 6:20 AM AKST

Temperature: 38.3 °F Dew Point: 38 °F Humidity: 99% Wind: Calm Pressure: 30.12 in Hourly Precipitation: - Windchill: 38 °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 
350 PM akst sun Dec 21 2014 


Short term.../ Sunday night and Monday / no large scale features 
across Southeast Alaska this evening on satellite imagery. Can spot 
the jet stream flowing across the Pacific to the Washington and 
Oregon coast and the start of the baroclinic Leaf that will become 
a weather maker for the area late Monday. 


In the mean time there is roughly one trough of showers lifting 
slowly northward into the northern Panhandle through late 
afternoon and evening. Conditions across the southern Panhandle 
started to break out on web cams and observations through the 
evening however weak onshore flow will continue to push scattered 
shower activity into the northern Panhandle. Expect a break again 
on Monday in advance of the next system. 


Across the central and northern Panhandle showers exiting are leading 
to a break in the development as the showers try to move northward 
today. Chance to likely probability of precipitation for much of this area...but amounts 
should be generally light. Northern Panhandle will persist with 
precipitation type issues. Snow aggressively hanging on from 
Haines and Skagway northward. Also still some isolated snow over 
the deep inland valleys around Juneau. Otherwise precipitation 
should be rain. Best snow amounts over northern Lynn Canal zones 
but amounts under 2 inches should be expected. 


No big warnings or advisories other than some small craft in the 
marine forecasts. With winter solstice this afternoon days will 
slowly increase now. Confidence through the short term is 
slightly above average through Monday. 


Long term...latest model runs have stayed consistent in tracking 
the low pressure system Monday night and Tuesday across the far 
southern Panhandle. Looking at latest guidance and previous 
forecast decided to leave most of it as is for this storm system. 
Still expecting gale force southeasterly winds in the southeast 
Gulf and southern Inner Channels. Strong northerly pressure 
gradient over the northern Panhandle will develop Monday night as 
this low tracks into the area with gale force winds developing 
there. Strong wind headlines will likely be needed for the 
southern Panhandle with gusts of 40 to 50 miles per hour on Tuesday. With the 
farther southern track expect the strongest winds will stay south 
and mainly impact the haida gwaii area. Strong offshore flow will 
keep precipitation mainly confined to south of Frederick Sound. 
The northerly winds will also help to usher in a bit cooler air 
to the northern Panhandle. 


The low weakens and pulls into British Columbia on Tuesday night. 
Weak surface ridging develops over the Gulf with multiple weak 
shortwaves moving over top of it into Southeast Alaska Wednesday 
through Friday. Think there will be a weak overrunning event 
Wednesday into Thursday. As for precipitation type, 850 mb 
temperatures fall to -6 to -8 c by this time as a cooler airmass 
moves into the area from the west. 1000-850 mb thickness fall to 
around 1285 M and light surface winds suggest precipitation over 
the northern Panhandle would likely be in the form of snow. At 
this time precipitation amounts are expected to be light. Models 
are suggesting a more organized area of precipitation will impact 
the area late Thursday into Friday. 


As mentioned by the previous shift, models have backed off the 
idea of a blocking ridge next weekend and have gone towards a more 
progressive pattern over the area. However, model agreement on 
individual features still remains poor in this time frame. 


Opted to make only minor changes as previous forecast matched up 
well with latest model guidance. Used 12z European model (ecmwf) for updates 
through day 4 then latest wpc guidance for the remainder of the 
long term. Forecaster confidence is increasing on a more southerly 
track of the low early this week into the far southern Panhandle. 
Confidence decreases later in the week with model disagreement 
continuing. 


&& 


Ajk watches/warnings/advisories... 
public...none. 
Marine...Small Craft Advisory for pkz012-013-036-041. 
Small Craft Advisory due to seas for pkz022-042-043-051-052. 


&& 


$$ 


Bezenek/tps 


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












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