Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 385, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 20, 2007, 10:16 PM CDT for Barron County, Wisconsin. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 20, 2007, 10:16 PM CDT (03:16 UTC)
- Expired
- Sep 20, 2007, 11:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
County Barron County, WI
The radar
The Duluth radar (KDLH), 146 km from the middle of the area, began a volume at 03:19 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 |
|---|---|---|---|
| Sep 20, 5:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 3.3 hours before the alert went out and 165 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
- 1394 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 838 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 567 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 24.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 210316 SVRMPX WIC005-210400- /O.NEW.KMPX.SV.W.0385.070921T0316Z-070921T0400Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1016 PM CDT THU SEP 20 2007 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN BARRON COUNTY IN NORTHWEST WISCONSIN... * UNTIL 1100 PM CDT * AT 1012 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES NORTHEAST OF CUMBERLAND...OR ABOUT 11 MILES NORTHWEST OF RICE LAKE...AND MOVING EAST AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... RICE LAKE... STAY INDOORS...AND AWAY FROM WINDOWS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT FRIDAY MORNING FOR NORTHWESTERN WISCONSIN. LAT...LON 4563 9155 4543 9155 4547 9212 4564 9201 TIME...MOT...LOC 0316Z 275DEG 31KT 4557 9188 $$ JPR
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 8:51 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Dunn, Eau Claire | 21 min |
| Sep 20, 9:29 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Saint Croix | 61 min |
| Sep 20, 9:44 PM CDT | Severe Thunderstorm Warning | MPX | Barron, Polk | 31 min |
| Sep 20, 10:11 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 64 min |
| Sep 21, 5:54 AM CDT | Severe Thunderstorm Warning | MPX | Polk | 36 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 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.