Alert archive / Alaska / Winter Storm Warnings in 2009

Winter Storm Warning 4, NWS Juneau, AK

January 11, 2009

NWS Juneau, AK issued this winter storm warning at Jan 11, 2009, 9:05 PM AKST. It took effect at Jan 12, 2009, 12:00 AM AKST. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 11, 2009, 9:05 PM AKST (06:05 UTC)
In effect from: Jan 12, 2009, 12:00 AM AKST
Expired: Jan 12, 2009, 3:00 PM AKST
In force: 15 hr
Issued by: NWS Juneau, AK

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Juneau, AK wrote its last area forecast discussion before this winter storm warning went out at Jan 11, 11:55 AM AKST, 9 hours 10 minutes earlier.

Area forecast discussion, Jan 11, 11:55 AM AKST, 9 hours 10 minutes before

SOUTHEAST ALASKA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JUNEAU AK
1155 AM AKST SUN JAN 11 2009

.SHORT TERM... BIG PROBLEM TODAY IS SUBTROPICAL SOURCE REGION
FOR T-BONE SHAPED WEATHER SYSTEM/FRONT MOVING INTO SE TONIGHT.
COMPARE GFS AND NAM QPF TO AMSU AND THERE IS LOTS OF JUICE. WILL
ISSUE FLOOD WARNING FOR THE FOLLOWING ZONES FOR WATER ON SNOW:
25 26 28 29. CONFIDENCE HIGH THAT THERE WILL BE PROBLEMS WITH
STREETS AND ROOFS.

THE LEAST FAVORITE MODEL TODAY IS THE GFS WHICH DRIVES THE MAIN
SFC LOW CENTER INLAND AT 36 HRS VT 00Z TUE. USED THE NAM FOR WIND
AND BLEND OF GFS AND NAM FOR QPF.

.LONG TERM...ONE LARGE SCALE WARM REGIMEN AFTER ANOTHER.
CHANGE TO FLOW WITH TROPICAL SOURCE REGION HAS BEGUN. THE GLOBAL
COMPOSITE IR SHOWS THE MERIDIONAL JET STREAM EXTENDING SOUTH OF THE
ALASKA PENINSULA BY ABOUT 2500 MILES.

A SECOND SECTION OF POLAR FRONT ZONE IS CROSSING THE DATELINE
IN A BROAD BAND FROM 300 TO 1200 NM S OF THE CHAIN. THIS SECOND
SECTION OF POLAR FRONT WILL PROVIDE THE STRONG WARMING FROM LOW
LATITUDES FOR DAYTIME TUE ONWARD.

MODELS: GOOD MODEL CONSENSUS AND HIGH FORECASTER CONFIDENCE THAT
THE THAT THE LARGE SCALE WARM UP AND CHANGE TO RAIN THAT IS
OCCURRING AT THIS TIME WILL RESULT IN TEMPERATURES PERSISTING
ABOVE FREEZING AND PERIODIC BANDS OF HEAVY RAIN. THE CONFIDENCE IS
HIGH FOR THESE WARMER CONDITIONS THROUGH AT LEAST FRI NIGHT.

WE HAVE LESS CONFIDENCE IN THE MODEL SOLUTIONS FOR THE
INDIVIDUAL RAIN BANDS AND WIND EVENTS ASSOCIATED WITH
INDIVIDUAL FRONTAL WAVES.  RUN TO RUN CHANGES ARE SIGNIFICANT:
GFS MSLP MODEL DRIFT FOR 36 HR, AND 60 HR, INDICATE MODEL
ADJUSTMENTS.  THESE COMPLICATIONS WITH THE INDIVIDUAL
DETERMINISTIC MODELS ENCOURAGE THE USE OF HPC GUIDANCE, AND
THE USE OF MOS THAT ARE BEING FACTORED IN WITH INCREASING
WEIGHT FOR 12Z THU ONWARD.

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...WIND ADVISORY FROM MIDNIGHT TONIGHT TO 12 PM AKST MONDAY FOR
     AKZ017-022-023-027.
MARINE...GALE WARNING FOR PKZ012-013-022-041>043-051-052.
         SMALL CRAFT ADVISORY FOR PKZ011-021-031>036.

JCC/JBT

In the hours before

Special weather statement, Jan 11, 5:00 PM AKST, 4 hours 5 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Juneau, AK issued on the same UTC day.

Issued	Product	Office	Lasted
Jan 11, 3:09 PM AKST	Areal Flood Warning	AJK	24 hr
Jan 11, 4:00 PM AKST	Gale Warning	AJK	12 hr
Jan 11, 4:00 PM AKST	Gale Warning	AJK	24 hr
Jan 11, 4:00 PM AKST	Gale Warning	AJK	24 hr
Jan 11, 4:00 PM AKST	Small Craft Advisory	AJK	24 hr
Jan 11, 9:05 PM AKST	Winter Weather Advisory	AJK	6 hr
Jan 11, 11:45 PM AKST	Small Craft Advisory	AJK	16 hr
Jan 12, 4:00 AM AKST	Gale Warning	AJK	12 hr
Jan 12, 4:00 AM AKST	Small Craft Advisory	AJK	12 hr
Jan 12, 4:55 AM AKST	Wind Advisory	AJK	22 hr
Jan 12, 5:32 AM AKST	Areal Flood Warning	AJK	9 hr

Nearby

Winter Storm Warnings in Alaska, 2009 Every winter storm warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.