Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 22, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at May 5, 2009, 6:38 PM CDT for Price County, Sawyer County, Wisconsin. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 5, 2009, 6:38 PM CDT (23:38 UTC)
- Expired
- May 5, 2009, 7:30 PM CDT
- In force
- 52 min
- Issued by
- NWS Duluth, MN
- Area
- Storm-based polygon
Counties Price County, WI, Sawyer County, WI
The radar
The Duluth radar (KDLH), 162 km from the middle of the area, began a volume at 23:39 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
Minneapolis, MN (KMPX), launched 12:00Z, 11.6 hours before the alert went out and 245 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
- 3 J/kg
- Mixed-layer CIN
- -141 J/kg
- Mixed-layer LCL
- 1042 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 5, 4:10 PM CDT, 2 hours 28 minutes earlier.
Area forecast discussion, May 5, 4:10 PM CDT, 2 hours 28 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DULUTH MN 500 AM CDT TUE MAY 5 2009 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-061030- 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- 500 AM CDT TUE MAY 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MINNESOTA AND NORTHWEST WISCONSIN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS MAY DEVELOP TUESDAY ACROSS THE REGION...MAINLY DURING THE AFTERNOON AND EARLY EVENING. SOME STORMS MAY PRODUCE GUSTY WINDS AND SMALL HAIL...ESPECIALLY OVER THE ST CROIX RIVER VALLEY VALLEY AND ADJACENT NORTHWEST WISCONSIN. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED THUNDERSTORMS ARE POSSIBLE WEDNESDAY AND THURSDAY. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. LSZ121-140>148-061030- 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- 500 AM CDT TUE MAY 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF WESTERN LAKE SUPERIOR. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS MAY DEVELOP TUESDAY ACROSS THE REGION...ESPECIALLY NEAR THE SOUTH SHORE DURING THE AFTERNOON. SOME STORMS MAY PRODUCE GUSTY WINDS AND SMALL HAIL. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED THUNDERSTORMS ARE POSSIBLE WEDNESDAY AND THURSDAY. CANNON MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB ADDRESS: HTTP://WWW.WEATHER.GOV/DULUTH (ALL LOWER CASE)
In the hours before
Special weather statement, May 5, 5:32 PM CDT, 1 hour 6 minutes before
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</html>Local storm report, May 5, 5:46 PM CDT, 52 minutes before
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</html>Special weather statement, May 5, 6:11 PM CDT, 27 minutes before
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</html>Local storm report, May 5, 6:29 PM CDT, 9 minutes before
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</html>Special weather statement, May 5, 6:34 PM CDT, 4 minutes before
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</html>The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 2:34 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Pine | 41 min |
| May 5, 3:12 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Saint Louis | 48 min |
| May 5, 3:17 PM CDT | Severe Thunderstorm Warning | DLH | Pine | 43 min |
| May 5, 3:49 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Saint Louis | 41 min |
| May 5, 3:54 PM CDT | Severe Thunderstorm Warning | DLH | Pine | 51 min |
| May 5, 4:04 PM CDT | Special Marine Warning | DLH | 56 min | |
| May 5, 4:17 PM CDT | Special Marine Warning | DLH | 43 min | |
| May 5, 4:52 PM CDT | Special Marine Warning | DLH | 38 min | |
| May 5, 4:58 PM CDT | Special Marine Warning | DLH | 47 min | |
| May 5, 5:28 PM CDT | Special Marine Warning | DLH | 47 min | |
| May 5, 3:28 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Douglas | 32 min |
| May 5, 3:55 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Douglas | 50 min |
| May 5, 4:14 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Douglas | 21 min |
| May 5, 4:27 PM CDT | Severe Thunderstorm Warning | DLH | Burnett | 48 min |
| May 5, 4:39 PM CDT | Severe Thunderstorm Warning | DLH | Burnett, Douglas, Washburn | 28 min |
| May 5, 5:04 PM CDT | Severe Thunderstorm Warning | DLH | Burnett, Washburn | 41 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2009Every severe thunderstorm 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.