Alert archive / Minnesota / Blizzard Warnings in 2009
Blizzard Warning 1, NWS Duluth, MN
NWS Duluth, MN issued this blizzard warning at Dec 23, 2009, 2:13 PM CST for Carlton County, Lake County, Saint Louis County, Minnesota; Douglas County, Wisconsin. It took effect at Dec 24, 2009, 4:30 AM CST. It was in force for 35 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
- Dec 23, 2009, 2:13 PM CST (20:13 UTC)
- In effect from
- Dec 24, 2009, 4:30 AM CST
- Expired
- Dec 25, 2009, 3:12 PM CST
- In force
- 35 hr
- Issued by
- NWS Duluth, MN
Counties Carlton County, MN, Lake County, MN, Saint Louis County, MN, Douglas County, WI
The radar
The Duluth radar (KDLH), 24 km from the middle of the area, began a volume at 20:11 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.2 hours before the alert went out and 422 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Duluth, MN wrote its last area forecast discussion before this blizzard warning went out at Dec 23, 1:12 PM CST, 1 hour 1 minute earlier.
Area forecast discussion, Dec 23, 1:12 PM CST, 1 hour 1 minute before
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</html>Hazardous weather outlook, Dec 23, 5:10 AM CST, 9 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DULUTH MN 510 AM CST WED DEC 23 2009 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-241130- KOOCHICHING-NORTHERN ST. LOUIS-NORTHERN COOK/NORTHERN LAKE- NORTHERN ITASCA-CENTRAL ST. LOUIS-SOUTHERN LAKE/LAKESHORE- SOUTHERN COOK/LAKESHORE-NORTHERN CASS-SOUTHERN ITASCA- SOUTHERN CASS-CROW WING-NORTHERN AITKIN-SOUTHERN AITKIN- CARLTON/SOUTHERN ST. LOUIS-PINE-DOUGLAS-BAYFIELD-ASHLAND-IRON- BURNETT-WASHBURN-SAWYER-PRICE- 510 AM CST WED DEC 23 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MINNESOTA AND NORTHWEST WISCONSIN. .DAY ONE...TODAY AND TONIGHT SNOW SHOWERS ARE POSSIBLE ALONG THE NORTH SHORE OF LAKE SUPERIOR TODAY...WITH AN INCH OR TWO OF POSSIBLE ACCUMULATION. THE BIG STORY FOR THIS PERIOD WILL BE THE RAPID ADVANCEMENT OF SNOW ACROSS THE NORTHLAND TONIGHT. THE SNOW WILL SPREAD FROM SOUTH TO NORTH OVERNIGHT...WITH 1 TO 3 INCHES OF ACCUMULATION FROM BRAINERD TO SIREN. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A SIGNIFICANT WINTER STORM IS FORECAST TO DEVELOP OVER THE SOUTHERN PLAINS TONIGHT...AND THEN LIFT NORTHWARD INTO THE GREAT LAKES REGION INTO LATE WEEK AND EARLY IN THE WEEKEND. WHILE CONFIDENCE IS GROWING THAT THIS WILL BE A MAJOR WINTER STORM...EXACT AMOUNTS ARE STILL A BIT TOUGH TO PINPOINT. CURRENT THINKING IS THAT MUCH OF THE REGION WILL SEE 10 TO 14 INCHES OF TOTAL SNOW ACCUMULATION...ALTHOUGH LOCALLY HIGHER AMOUNTS COULD OCCUR IF EVERYTHING CONTINUES TO COME TOGETHER WITH THIS STORM. A WINTER STORM WARNING HAS BEEN ISSUED FOR ALL OF THE NORTHLAND. THE STORM WILL DRAMATICALLY HAMPER TRAVEL ACROSS MUCH OF THE CENTRAL UNITED STATES DURING THE HOLIDAY WEEKEND...PARALYZING TRAVEL DUE TO SNOW AND BLOWING SNOW. TRAVELERS ARE STRONGLY ENCOURAGED TO STAY CURRENT WITH THE LATEST WEATHER INFORMATION REGARDING THIS DEVELOPING STORM. .SPOTTER INFORMATION STATEMENT... SNOWFALL OBSERVERS ARE ENCOURAGED TO RELAY THEIR SNOW REPORTS TO THE NATIONAL WEATHER SERVICE IN DULUTH. LSZ121-140>148-241130- BAYFIELD TO OAK POINT WI-GRAND PORTAGE TO GRAND MARAIS MN- GRAND MARAIS TO TACONITE HARBOR MN- TACONITE HARBOR TO SILVER BAY HARBOR MN- SILVER BAY HARBOR TO TWO HARBORS MN-TWO HARBORS TO DULUTH MN- DULUTH MN TO PORT WING WI-PORT WING TO SAND ISLAND WI- SAND ISLAND TO BAYFIELD WI-OAK POINT TO SAXON HARBOR WI- 510 AM CST WED DEC 23 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF WESTERN LAKE SUPERIOR. .DAY ONE...TODAY AND TONIGHT WINDS WILL INCREASE THROUGHOUT THE DAY...AND ESPECIALLY TONIGHT. GALE FORCE GUSTS TO 35 TO 45 KNOTS WILL BE POSSIBLE TONIGHT...MAINLY FROM TWO HARBORS TO THE TWIN PORTS...AND OVER TO PORT WING. WAVES WILL BUILD...AND THE COMBINATION OF THE STRONG WINDS AND HIGH WAVES WILL MAKE CONDITIONS HAZARDOUS FOR SMALL CRAFT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE STRONG WINDS AND HIGH WAVES ARE EXPECTED TO CONTINUE AT LEAST INTO FRIDAY...AS A MAJOR WINTER STORM AFFECTS THE REGION. DAP MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB ADDRESS: HTTP://WWW.WEATHER.GOV/DULUTH (ALL LOWER CASE)
The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 22, 9:41 PM CST | Small Craft Advisory | DLH | 44 hr | |
| Dec 23, 3:10 PM CST | Gale Warning | DLH | 51 hr |
Nearby
Blizzard Warnings in Minnesota, 2009Blizzard Warnings in Wisconsin, 2009Every blizzard 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.