Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 90, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Aug 17, 2002, 12:04 AM CDT for Pine County, Minnesota; Burnett County, Washburn County, Wisconsin. It was in force for 56 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
- Aug 17, 2002, 12:04 AM CDT (05:04 UTC)
- Expired
- Aug 17, 2002, 1:00 AM CDT
- In force
- 56 min
- Issued by
- NWS Duluth, MN
- Area
- Counties, with a storm outline in the text
Counties Pine County, MN, Burnett County, WI, Washburn County, WI
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 16, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.1 hours before the alert went out and 160 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
- 1774 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 244 m²/s²
- 0-3 km storm-relative helicity
- 375 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 Aug 16, 9:00 PM CDT, 3 hours 4 minutes earlier.
Area forecast discussion, Aug 16, 9:00 PM CDT, 3 hours 4 minutes before
MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-170409- AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 900 PM CDT FRI AUG 16 2002 SFC LOW IN SD CONTS TO DEEPEN IN RESPONSE TO THE VY STG VORT MAX AND THE WAA OVR ERN SD...SRN MN...NWRN IA. STGST 88D ACTIVITY IS ALNG AN E-W TROF FROM THE SD LO CNTR THRU THE TWIN CITIES. ANY ACTIVITY THAT HAS VENTURED NEWD FROM THIS SYS HAS WEAKENED AS IT REACHED PINE AND BURNETT COUNTIES ALONG THE MN/WI BDR. DIGGING DAKS TROF IS BACKING THE UPR FLOW, SO WE EXPECT SOME OF THIS SRN MN ACTIVITY TO BE VECTORED INTO SRN PTN OF OUR WI CWA. SOME PSPBLE BOUNDARIES ARE APPEARING ON 88D IMAGERY FM STC TO NR FARGO. NOT SURE WHETHER THAT WL BE SURPRISE DVLPMT, BUT IT IS ON THE ERN EDGE OF THE MDT RISK AREA ON THE NEW SWODY1. BEST BET, HWVR IS WITH THE MAIN DAKS VORT MAX WHEN THAT ROLLS THRU AFT MIDN. NO NEED TO CHG ZONES ATTM, ALTHO WE COULD REMOVE INL ZONES FM SVR THREAT. WL LEAVE IT AS IS FOR NOW SINCE THEY ARE STILL IN THE SLGT RISK AREA. CS
The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 10:39 PM CDT | Severe Thunderstorm Warning | DLH | Cass, Crow Wing | 36 min |
| Aug 17, 12:34 AM CDT | Severe Thunderstorm Warning | DLH | Itasca | 26 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2002Severe Thunderstorm Warnings in Minnesota, 2002Every severe thunderstorm warning in 2002
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.