Petersburg, Alaska Weather Conditions

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Current Conditions

  • 18°
  • Clear
  • Wind: Calm
  • Humidity: 79%
  • Visibility: 10.0 miles
  • Dew Point: 12°
  • Pressure: 30.13 in. -

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Next 12 Hours

12  am
3  am
6  am
9  am
12  pm
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
12°
19°
28°
27°
25°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Mostly Cloudy
  • High: 34 °
  • Low: 27 °
  • Mostly Cloudy
  • Sunday
  • Snow
  • High: 37 °
  • Low: 28 °
  • Snow
  • Monday
  • Mostly Cloudy
  • High: 34 °
  • Low: 23 °
  • Mostly Cloudy
  • Tuesday
  • Chance of Snow
  • High: 39 °
  • Low: 27 °
  • Chance of Snow
  • Wednesday
  • Chance of Snow
  • High: 37 °
  • Low: 28 °
  • Chance of Snow

Forecast for Petersburg, Alaska

Updated: 12:00 AM AKST on November 29, 2014

Winter Storm Watch from Saturday evening through Sunday afternoon...
  • Saturday

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

  • Saturday Night

    Overcast with snow after midnight. Low of 27F. Winds less than 5 mph. Chance of snow 60% with accumulations up to 2 in. possible.

  • Sunday

    Overcast with snow and a chance of rain, then a chance of snow and a chance of rain in the afternoon. High of 37F with a windchill as low as 25F. Winds from the ESE at 5 to 10 mph. Chance of snow 80% with accumulations up to 1 in. possible.

  • Sunday Night

    Overcast with a chance of snow. Low of 28F. Winds less than 5 mph. Chance of snow 60% with accumulations up to 1 in. possible.

  • Monday

    Partly cloudy in the morning, then overcast. High of 34F. Winds less than 5 mph.

  • Monday Night

    Overcast in the evening, then mostly cloudy. Low of 23F. Winds less than 5 mph.

  • Tuesday

    Overcast with a chance of rain in the afternoon. High of 39F. Winds less than 5 mph. Chance of rain 40%.

  • Tuesday Night

    Overcast with a chance of snow. Low of 27F. Winds from the East at 5 to 10 mph. Chance of snow 40%.

  • Wednesday

    Overcast with a chance of rain in the afternoon. High of 37F. Winds from the East at 5 to 10 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Wednesday Night

    Mostly cloudy with a chance of snow. Low of 28F. Winds less than 5 mph. Chance of snow 40% with accumulations up to 3 in. possible.

  • Thursday

    Overcast with a chance of snow. High of 39F. Winds from the ENE at 5 to 10 mph. Chance of snow 30%.

  • Thursday Night

    Overcast with a chance of snow. Low of 34F with a windchill as low as 27F. Winds from the ENE at 5 to 10 mph. Chance of snow 70% with accumulations up to 2 in. possible.

  • Friday

    Overcast with a chance of snow. High of 41F. Winds from the East at 5 to 10 mph. Chance of snow 50%.

  • Friday Night

    Overcast with a chance of snow. Low of 34F with a windchill as low as 28F. Winds from the East at 5 to 10 mph. Chance of snow 40%.

  • Saturday

    Overcast with a chance of rain. High of 43F. Winds from the East at 5 to 10 mph. Chance of rain 50%.

  • Saturday Night

    Overcast with a chance of rain. Low of 34F with a windchill as low as 28F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Sunday

    Overcast with a chance of rain. Fog early. High of 43F. Winds from the SE at 10 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.

  • Sunday Night

    Overcast with a chance of rain. Fog overnight. Low of 36F. Winds from the SE at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.

  • Monday

    Mostly cloudy with a chance of a thunderstorm. High of 46F. Winds from the SE at 10 to 15 mph. Chance of rain 40%.

  • Monday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 37F. Winds from the SE at 10 to 15 mph. Chance of rain 40%.

  • Tuesday

    Partly cloudy with a chance of rain. High of 45F. Winds from the SE at 10 to 15 mph. Chance of rain 50%.

  • Tuesday Night

    Clear. Fog overnight. Low of 37F. Winds from the ESE at 5 to 15 mph.

Severe Weather Alert Descriptions

 Winter Storm Watch  Statement as of 3:27 PM AKST on November 28, 2014


... Winter Storm Watch in effect from Saturday evening through
Sunday afternoon...

The National Weather Service in Juneau has issued a Winter Storm
Watch... which is in effect from Saturday evening through Sunday
afternoon.

* Timing... snow will start Saturday evening along the outer coast
spreading east and south through Sunday before tapering off.

* Main impact... 4 to 10 inches of snow accumulation possible.

* Other impacts... the first significant snow of the season may
result in driving problems for larger communities.

Precautionary/preparedness actions...

A watch means conditions are favorable for the development of
winter storm conditions in and close to the watch area.

Preparation for this potentially dangerous weather event should
begin now.

This statement will be updated by 5 am akst Sat or sooner if
conditions warrant.






Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: RAWS KAKE AK US, Kake, AK

Updated: 11:55 PM AKST

Temperature: 19 °F Dew Point: 16 °F Humidity: 86% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 19 °F Graphs

Location: Papke's Landing, Petersburg, AK

Updated: 12:19 AM AKST

Temperature: 11.3 °F Dew Point: 10 °F Humidity: 96% Wind: Calm Pressure: 30.24 in Hourly Precipitation: - Windchill: 11 °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 
403 PM akst Friday Nov 28 2014 


Short term...very quiet day between storm systems here in the 
Panhandle with the Post-frontal cold air mass firmly in place at low-levels. 
Only residual winds at Five Fingers (25 kt), Skagway area (15 kt)...Eldred 
Rock is down to g22 at the moment. No doubt that some southeastern 
passes still have outflow but this should be diminishing over the 
next few hours. The primary changes for grids tonight are cooling 
most sea level areas where it is anticipated to be mostly calm 
overnight...shaved a few degrees off the lows for many areas as 
dew points very low in the wake of the cold outflow yesterday. 
Will make for a very cold night over the Panhandle. Also as the 
new low begins to develop over the northern Gulf 
Saturday...anticyclonic low-level winds offshore over zones 41, 42 
and eastern 310 will increase somewhat but don't think they will 
get to widely sustained 25 knots based on new model low-level 
pressure gradient forecasts. So tweaked the winds down in this 
region for Saturday afternoon. A detailed analysis of low-level 
conditions indicates that the only areas which may have mixed 
precipitation on late Sat are zones 22 and 23...in the coastal 
Sitka and Elfin Cove areas where 850 temperatures are above -6c or so 
late afternoon. Even there only included a chance of rain mixing 
in as pre- storm dry air/evap will contribute to cooling and may 
delay this. Otherwise low-level temperatures area-wide are primed 
for snow development late Saturday/evening as coastal trough 
develops, low approaches and overrunning of cold air mass begins. 
Only light precipitation expected in this period though. Wave aloft is at 
about 148w on NAM guidance at 03z Saturday and heading east. 
Utilized combo of ec/NAM and inherited quantitative precipitation forecast data for moisture 
fields. Model confidence is average. 


Long term...lions share of the forecast time was spent looking at 
the incoming weather system for late Saturday and Sunday. Originally 
was going with subset of the eventual watch that was issued but 
the surround areas were borderline enough that a 'advisory level' 
amounts could happen so included them into the forecast situation. 


The cooler air primed the Inner Channels for an overrunning snow 
event starting Saturday afternoon to Sunday afternoon and to 
Sunday night for the misty fjord some of the snow amounts 
depending on models are borderline for Snow Advisory but went head 
and highlight it anyway. Snowfall in the Juneau area likely to be 
in the 4 to 8 inch range but think the biggest hazard will be the 
motorists trying to remember how to drive on the white stuff 
again. Weather systems is a typical weak low cutting across the 
northern Gulf with upper level support and fair bit of moisture. 
Best areas of snow along the Icy Strait area to Juneau and then 
southward to Wrangell Petersburg and Hyder. 


There is possible advisory for the Yakutat area as well. With the 
weaker system and not expecting big winds with low and trough 
feature. Behind the first low it looks like there could be a bit 
of cooling before the next weakening frontal band from the Bering 
Sea low to spread in for Tuesday. There could be a few more inches 
of snow from that depending on locations. Otherwise it is 
southwest flow aloft so looking for a slow warm-up for much of 
the Panhandle end of the week. 




&& 


Ajk watches/warnings/advisories... 
public...Winter Storm Watch from Saturday evening through Sunday 
afternoon for akz020>022-024>026. 
Winter Storm Watch from Sunday morning through Sunday afternoon 
for akz028. 
Winter Storm Watch from Sunday morning through Sunday evening 
for akz029. 
Marine...Small Craft Advisory due to seas for pkz041>043. 


&& 


$$ 


Wesley/bezenek 


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














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