Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 7, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Apr 18, 2004, 3:37 AM CDT for Burnett County, Douglas County, Washburn County, Wisconsin. It was in force for 53 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
- Apr 18, 2004, 3:37 AM CDT (08:37 UTC)
- Expired
- Apr 18, 2004, 4:30 AM CDT
- In force
- 53 min
- Issued by
- NWS Duluth, MN
- Area
- Counties, with a storm outline in the text
Counties Burnett County, WI, Douglas County, WI, Washburn County, WI
The radar
The Duluth radar (KDLH), 86 km from the middle of the area, began a volume at 08:36 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 00:00Z, 8.6 hours before the alert went out and 184 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
- 2026 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Apr 18, 3:30 AM CDT, 7 minutes earlier.
Area forecast discussion, Apr 18, 3:30 AM CDT, 7 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 330 AM CDT SUN APR 18 2004 .DISCUSSION...15Z MSAS SFC PRESSURE PLOT PLACE A RIDGE AXIS OVER THE EASTERN DAKOTAS. CYCLONIC FLOW FOUND ACROSS THE FA WITH SOME SCATTERED -SHRA/SHSN OCCURRING. HAVE UPDATED THE GRIDS TO ACCOUNT FOR THE PCPN. -SHSN ARE REDUCING VISIBILITIES BRIEFLY AND SOME LIGHT ACCUMULATIONS ARE BEING FOUND IN GRASSY AREAS PER COOP OBSERVER REPORTS. HAVE ALSO UPDATED THE WINDS...ESPECIALLY ALONG THE NORTH SHORE...WHERE LOCAL TERRAIN AFFECTS WIND SPEEDS. REST OF THE FORECAST IN GOOD SHAPE. UPDATED TEXT FORECAST FORTHCOMING. && .DLH...WATCHES/WARNINGS/ADVISORIES MN...NONE. WI...NONE. GSF
Hazardous weather outlook, Apr 17, 8:39 AM CDT, 18 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE DULUTH MN 839 AM CDT SAT APR 17 2004 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-181230- ASHLAND-BAYFIELD-BURNETT-C. ST. LOUIS-CROW WING-DOUGLAS-IRON- KOOCHICHING-N. AITKIN-N. CASS-N. ITASCA-N. LAKE/N. COOK-N. ST. LOUIS- PINE-PRICE-S. AITKIN-S. CASS-S. COOK/LAKESHORE-S. ITASCA- S. LAKE/LAKESHORE-S. ST. LOUIS/CARLTON-SAWYER-WASHBURN- 839 AM CDT SAT APR 17 2004 ...SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT AND TOMORROW... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE EXPECTED LATE TONIGHT ACROSS NORTHWEST WISCONSIN AND THERE IS A SLIGHT CHANCE THAT SOME MAY BE SEVERE WITH HAIL GREATER THAN 3/4 INCH OR GUSTY WINDS GREATER THAN 58 MPH...ESPECIALLY OVER PRICE COUNTY AND SOUTHERN PORTIONS OF BURNETT...WASHBURN...AND SAWYER COUNTIES. NORTHEAST WINDS WILL INCREASE LATE TONIGHT ON LAKE SUPERIOR. A SMALL CRAFT ADVISORY MAY BE NEEDED ALONG THE NEARSHORE AREAS OF LAKE SUPERIOR. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS SUNDAY AND SUNDAY NIGHT. THE BEST CHANCE OF SEVERE WEATHER IS SOUTH OF LINE FROM GRAND MARAIS...THROUGH THE IRON RANGE...TO BRAINERD...AND ACROSS ALL OF NORTHWEST WISCONSIN. THE GREATEST THREAT WITH THESE SEVERE STORMS IS LARGE HAIL AND DAMAGING WINDS...HOWEVER ISOLATED TORNADOES MAY DEVELOP ACROSS NORTHWEST WISCONSIN. BRISK NORTHEAST WINDS WILL OCCUR OVER LAKE SUPERIOR SUNDAY AND SUNDAY NIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED ALONG THE NEARSHORE AREAS OF LAKE SUPERIOR. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MAY BE NEEDED LATE TONIGHT AND TOMORROW. && MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING URL: HTTP://WWW.CRH.NOAA.GOV/DLH LJT
The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 2:20 AM CDT | Severe Thunderstorm Warning | DLH | Pine | 55 min |
| Apr 18, 3:17 AM CDT | Severe Thunderstorm Warning | DLH | Pine | 58 min |
| Apr 18, 7:18 AM CDT | Severe Thunderstorm Warning | DLH | Pine | 27 min |
| Apr 18, 8:01 AM CDT | Severe Thunderstorm Warning | DLH | Cass | 44 min |
| Apr 18, 8:39 AM CDT | Severe Thunderstorm Warning | DLH | Cass, Crow Wing | 51 min |
| Apr 18, 8:42 AM CDT | Severe Thunderstorm Warning | DLH | Itasca | 33 min |
| Apr 18, 9:47 AM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 28 min |
| Apr 18, 10:07 AM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 38 min |
| Apr 18, 10:33 AM CDT | Severe Thunderstorm Warning | DLH | Lake | 42 min |
| Apr 18, 11:06 AM CDT | Special Marine Warning | DLH | 54 min | |
| Apr 18, 12:13 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 62 min |
| Apr 18, 12:58 PM CDT | Severe Thunderstorm Warning | DLH | Lake | 62 min |
| Apr 18, 1:35 PM CDT | Severe Thunderstorm Warning | DLH | Cook | 55 min |
| Apr 18, 3:36 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 39 min |
| Apr 18, 3:59 PM CDT | Tornado Warning | DLH | Pine | 61 min |
| Apr 18, 4:13 PM CDT | Severe Thunderstorm Warning | DLH | Lake, Saint Louis | 62 min |
| Apr 18, 4:30 PM CDT | Special Marine Warning | DLH | 60 min | |
| Apr 18, 5:13 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 32 min |
| Apr 18, 5:31 PM CDT | Special Marine Warning | DLH | 89 min | |
| Apr 18, 5:31 PM CDT | Special Marine Warning | DLH | 89 min | |
| Apr 18, 5:53 PM CDT | Severe Thunderstorm Warning | DLH | Lake | 52 min |
| Apr 18, 2:11 AM CDT | Severe Thunderstorm Warning | DLH | Sawyer | 64 min |
| Apr 18, 4:00 AM CDT | Severe Thunderstorm Warning | DLH | Bayfield | 30 min |
| Apr 18, 4:43 AM CDT | Severe Thunderstorm Warning | DLH | Sawyer | 32 min |
| Apr 18, 4:56 AM CDT | Severe Thunderstorm Warning | DLH | Douglas, Washburn | 34 min |
| Apr 18, 5:20 AM CDT | Severe Thunderstorm Warning | DLH | Ashland, Sawyer | 55 min |
| Apr 18, 7:33 AM CDT | Severe Thunderstorm Warning | DLH | Washburn | 27 min |
| Apr 18, 7:56 AM CDT | Severe Thunderstorm Warning | DLH | Sawyer | 34 min |
| Apr 18, 8:27 AM CDT | Severe Thunderstorm Warning | DLH | Ashland, Sawyer | 48 min |
| Apr 18, 9:10 AM CDT | Severe Thunderstorm Warning | DLH | Price | 35 min |
| Apr 18, 4:41 PM CDT | Tornado Warning | DLH | Burnett | 64 min |
| Apr 18, 5:23 PM CDT | Tornado Warning | DLH | Washburn | 67 min |
| Apr 18, 5:54 PM CDT | Tornado Warning | DLH | Sawyer | 66 min |
| Apr 18, 6:32 PM CDT | Severe Thunderstorm Warning | DLH | Ashland | 43 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2004Every severe thunderstorm warning in 2004
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.