Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 111, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Jul 26, 2007, 2:08 PM CDT for Carlton County, Saint Louis County, Minnesota. It was in force for 67 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 26, 2007, 2:08 PM CDT (19:08 UTC)
- Expired
- Jul 26, 2007, 3:15 PM CDT
- In force
- 67 min
- Issued by
- NWS Duluth, MN
- Area
- Counties, with a storm outline in the text
Counties Carlton County, MN, Saint Louis County, MN
The radar
The Duluth radar (KDLH), 39 km from the middle of the area, began a volume at 19:11 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 26, 1:16 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 7.1 hours before the alert went out and 262 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
- 1237 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1075 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -43 m²/s²
- 0-3 km storm-relative helicity
- -10 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 Jul 26, 11:15 AM CDT, 2 hours 53 minutes earlier.
Area forecast discussion, Jul 26, 11:15 AM CDT, 2 hours 53 minutes before
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</html>Hazardous weather outlook, Jul 26, 4:22 AM CDT, 9 hours 46 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DULUTH MN 422 AM CDT THU JUL 26 2007 LSZ121-140>148-162-MNZ010>012-018>021-025-026-033>038-WIZ001>004- 006>009-270930- 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- OPEN WATERS OF LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN-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- 422 AM CDT THU JUL 26 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MINNESOTA... NORTHWEST WISCONSIN AND WESTERN LAKE SUPERIOR. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY AND THIS EVENING SOUTH OF A LINE FROM MCGRATH...IN SOUTHERN AITKIN COUNTY MINNESOTA ...TO WILLOW RIVER IN PINE COUNTY MINNESOTA...TO BENNETT...IN CENTRAL DOUGLAS COUNTY WISCONSIN...TO NEAR GURNEY...IN IRON COUNTY WISCONSIN. ISOLATED STRONG STORMS MAY OCCUR AS EARLY AS THIS MORNING HOWEVER STORMS ARE MORE LIKELY THIS AFTERNOON AS A COLD FRONT APPROACHES THE AREA. AT THIS TIME THE MAIN THREAT APPEARS TO BE DAMAGING WINDS AND SMALL HAIL. KEEP IN MIND THAT TORNADOES CAN DEVELOP WITHIN SOME SEVERE THUNDERSTORMS...SOMETIMES WITH LITTLE NOTICE. CHECK THE LATEST FORECAST FOR ANY CHANGES REGARDING THE POTENTIAL FOR STRONG OR SEVERE THUNDERSTORMS TODAY. ELSEWHERE ACROSS THE REGION A COLD FRONT WILL ADVANCE FROM EXTREME NORTHWEST MINNESOTA THIS MORNING...INTO NORTHWEST WISCONSIN BY THIS EVENING. A VERY DEEP LAYER OF MOIST AIR AHEAD OF THE FRONT WILL ALLOW LOCALLY HEAVY RAIN TO OCCUR THIS AFTERNOON ACROSS A LARGE AREA. REDUCED VISIBILITIES AND PONDING OF WATER ON AREA ROADWAYS COULD MAKE TRAVEL A BIT DIFFICULT AT TIMES. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT ACROSS SOUTHERN PARTS OF THE REGION. CANNON
The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 1:15 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin | 60 min |
| Jul 26, 1:50 PM CDT | Severe Thunderstorm Warning | DLH | Carlton, Saint Louis | 25 min |
| Jul 26, 2:19 PM CDT | Special Marine Warning | DLH | 86 min | |
| Jul 26, 2:53 PM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Pine | 67 min |
| Jul 26, 3:03 PM CDT | Severe Thunderstorm Warning | DLH | Lake | 27 min |
| Jul 26, 3:14 PM CDT | Special Marine Warning | DLH | 69 min | |
| Jul 26, 3:26 PM CDT | Severe Thunderstorm Warning | DLH | Lake | 36 min |
| Jul 26, 3:40 PM CDT | Special Marine Warning | DLH | 40 min | |
| Jul 26, 3:46 PM CDT | Severe Thunderstorm Warning | DLH | Pine | 59 min |
| Jul 26, 4:43 PM CDT | Special Marine Warning | DLH | 62 min | |
| Jul 26, 5:39 PM CDT | Special Marine Warning | DLH | 36 min | |
| Jul 26, 2:45 PM CDT | Severe Thunderstorm Warning | DLH | Douglas | 60 min |
| Jul 26, 3:35 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield | 55 min |
| Jul 26, 4:28 PM CDT | Severe Thunderstorm Warning | DLH | Bayfield | 62 min |
| Jul 26, 4:40 PM CDT | Severe Thunderstorm Warning | DLH | Ashland | 50 min |
| Jul 26, 5:15 PM CDT | Severe Thunderstorm Warning | DLH | Iron | 49 min |
| Jul 26, 5:36 PM CDT | Severe Thunderstorm Warning | DLH | Ashland | 24 min |
| Jul 26, 5:39 PM CDT | Severe Thunderstorm Warning | DLH | Sawyer | 41 min |
| Jul 26, 5:46 PM CDT | Severe Thunderstorm Warning | DLH | Price | 59 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2007Every severe thunderstorm warning in 2007
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.