Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 142, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Jul 11, 2008, 9:14 PM CDT for 5 counties in Wisconsin. It was in force for 31 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
- Jul 11, 2008, 9:14 PM CDT (02:14 UTC)
- Expired
- Jul 11, 2008, 9:45 PM CDT
- In force
- 31 min
- Issued by
- NWS Duluth, MN
- Area
- Storm-based polygon
Counties Bayfield County, WI, Burnett County, WI, Douglas County, WI, Sawyer County, WI, Washburn County, WI
The radar
The Duluth radar (KDLH), 87 km from the middle of the area, began a volume at 02:16 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 11, 6:13 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.2 hours before the alert went out and 208 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
- 2916 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1332 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 12.9
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 Jul 11, 5:32 PM CDT, 3 hours 42 minutes earlier.
Area forecast discussion, Jul 11, 5:32 PM CDT, 3 hours 42 minutes before
AREA FORECAST DISCUSSION...MESOSCALE UPDATE NATIONAL WEATHER SERVICE DULUTH MN 532 PM CDT FRI JUL 11 2008 .MESOSCALE UPDATE...CONCERNING SEVERE STORM MOVING INTO BRAINERD LAKES REGION. URGENT...STORM MOVING FROM STAPLES AREA INTO NISSWA...BRAINERD AND GULL LAKE AREA APPEARS TO BE ACQUIRING HP SUPERCELL/BOW ECHO RADAR SIGNATURES. THREAT OF 80-100 MPH NON TORNADIC WINDS APPEARS TO BE HIGH NEXT HOUR ALONG HIGHWAY 210 CORRIDOR FROM STAPLES TO BRAINERD AND LAKE MILLE LACS. MILLER
Hazardous weather outlook, Jul 11, 1:45 PM CDT, 7 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE DULUTH MN 145 PM CDT FRI JUL 11 2008 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-121030- 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- 135 PM CDT FRI JUL 11 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MINNESOTA AND NORTHWEST WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT ONGOING STRONG TO SEVERE THUNDERSTORMS OVER THE MINNESOTA ARROWHEAD ARE EXPECTED TO PERSIST ALONG THE CANADIAN BORDER... INCLUDING THE BOUNDARY WATERS CANOE AREA... FOR MUCH OF THIS AFTERNOON. THE STRONGEST STORMS WILL STILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND GUSTS UP TO 60 MPH ALONG WITH LOCALLY HEAVY RAINFALL... BUT THESE STORMS SHOULD BEGIN TO DIMINISH IN COVERAGE AND INTENSITY AFTER 2 PM AS THEY MOVE INTO ONTARIO. AS A STRONG DISTURBANCE AND FRONT APPROACH CENTRAL AND NORTHERN MINNESOTA THIS AFTERNOON AND EVENING... ADDITIONAL SEVERE THUNDERSTORMS ARE EXPECTED TO RAPIDLY DEVELOP DURING MID TO LATE AFTERNOON ALONG AND AHEAD OF THE FRONT FROM LAKE OF THE WOODS... SOUTHWARD TO ALEXANDRIA BETWEEN 2 AND 4 PM. STORMS ARE THEN EXPECTED TO MOVE EASTWARD ACROSS MUCH OF CENTRAL AND NORTHERN MINNESOTA AND NORTHWEST WISCONSIN THIS EVENING AND OVERNIGHT. WIDESPREAD DAMAGING WINDS AND VERY LARGE HAIL APPEAR LIKELY. IN ADDITION... THE STRONGEST STORMS WILL ALSO BE CAPABLE OF PRODUCING TORNADOES. THE GREATEST TORNADO THREAT APPEARS TO EXIST BETWEEN 4 AND 9 PM IN AREAS FROM THE BRAINERD LAKES AREA...NORTHWARD TO INTERNATIONAL FALLS AND CRANE LAKE. EVERYONE... ESPECIALLY VACATIONERS AND ANYONE WITH OUTDOOR OR LAKE PLANS TODAY... ARE URGED TO STAY CURRENT WITH THE LATEST WEATHER INFORMATION THIS AFTERNOON AND EVENING. FINALLY... STRONG ONSHORE WINDS WILL RESULT IN AN INCREASED RISK OF RIP CURRENTS ON THE SANDY BEACHES OF LAKE SUPERIOR...INCLUDING PARK POINT...AND ALONG THE SOUTH SHORE TO THE APOSTLE ISLANDS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A SMALL CHANCE FOR THUNDERSTORMS SATURDAY AFTERNOON ACROSS FAR NORTHERN MINNESOTA...AND ANOTHER CHANCE OF THUNDERSTORMS TUESDAY NIGHT THROUGH THURSDAY ACROSS THE ENTIRE REGION. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON AND EVENING IN MOST AREAS. LSZ121-140>148-121030- 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- 135 PM CDT FRI JUL 11 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF WESTERN LAKE SUPERIOR. .DAY ONE...THIS AFTERNOON AND TONIGHT EAST TO NORTHEAST WINDS FROM 15 TO 25 MPH AT THE SOUTHWEST TIP OF LAKE SUPERIOR AND PARTS OF THE NORTH SHORE WILL PERSIST INTO MID AFTERNOON AND RESULT IN WAVE HEIGHTS OF 2 TO 5 FEET. A SMALL CRAFT ADVISORY IS IN EFFECT UNTIL 3 PM. WINDS AND WAVES ARE EXPECTED TO DECREASE LATE THIS AFTERNOON...BEFORE INCREASING OUT OF THE WEST AFTER MIDNIGHT TONIGHT AFTER A FRONT PASSES. A VERY STRONG SYSTEM WILL BRING A THREAT OF SEVERE THUNDERSTORMS FROM LATE THIS AFTERNOON THROUGH TONIGHT. THE PRIMARY THREATS WILL BE VERY LARGE HAIL...GALE TO STORM FORCE WIND GUSTS... AND FREQUENT LIGHTNING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE FOR THUNDERSTORMS TUESDAY NIGHT THROUGH THURSDAY. MILLER
In the hours before
Local storm report, Jul 11, 7:18 PM CDT, 1 hour 56 minutes before
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</html>Local storm report, Jul 11, 8:54 PM CDT, 20 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 |
|---|---|---|---|---|
| Jul 11, 7:22 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Itasca, Lake, Pine, Saint Louis | 53 min |
| Jul 11, 7:31 PM CDT | Special Marine Warning | DLH | 89 min | |
| Jul 11, 7:43 PM CDT | Severe Thunderstorm Warning | DLH | Cook, Lake, Saint Louis | 62 min |
| Jul 11, 8:11 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Lake, Pine, Saint Louis | 64 min |
| Jul 11, 8:45 PM CDT | Special Marine Warning | DLH | 60 min | |
| Jul 11, 8:49 PM CDT | Severe Thunderstorm Warning | DLH | Cook, Lake | 86 min |
| Jul 11, 9:41 PM CDT | Special Marine Warning | DLH | 64 min | |
| Jul 11, 9:02 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Iron, Price, Sawyer | 58 min |
| Jul 11, 9:43 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield, Sawyer, Washburn | 32 min |
| Jul 11, 9:57 PM CDT | Severe Thunderstorm Warning | DLH | Ashland, Bayfield, Iron, Price, Sawyer | 78 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2008Every severe thunderstorm warning in 2008
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.