Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 352, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 17, 2007, 8:31 PM CDT for Chippewa County, Lac qui Parle County, Minnesota. It was in force for 21 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 17, 2007, 8:31 PM CDT (01:31 UTC)
- Expired
- Sep 17, 2007, 8:52 PM CDT
- In force
- 21 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Chippewa County, MN, Lac qui Parle County, MN
The radar
The Sioux Falls radar (KFSD), 176 km from the middle of the area, began a volume at 01:32 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 17, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.5 hours before the alert went out and 185 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
- 1285 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1974 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 372 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 180131 SVRMPX MNC023-073-180215- /O.NEW.KMPX.SV.W.0352.070918T0131Z-070918T0215Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 831 PM CDT MON SEP 17 2007 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA... CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA... * UNTIL 915 PM CDT * AT 829 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 DAWSON...OR ABOUT 9 MILES EAST OF MADISON...AND MOVING NORTHEAST AT 45 MPH. * LOCATIONS IMPACTED INCLUDE... CERRO GORDO... WATSON... MILAN... SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT TUESDAY MORNING FOR SOUTHERN MINNESOTA. LAT...LON 4516 9596 4515 9553 4486 9601 4498 9619 TIME...MOT...LOC 0131Z 216DEG 40KT 4500 9598 $$ JPR
1 follow-up statement
000 WWUS53 KMPX 180152 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 852 PM CDT MON SEP 17 2007 MNC023-073-180202- /O.CAN.KMPX.SV.W.0352.000000T0000Z-070918T0215Z/ LAC QUI PARLE MN-CHIPPEWA MN- 852 PM CDT MON SEP 17 2007 ...THE SEVERE THUNDERSTORM WARNING FOR CHIPPEWA AND LAC QUI PARLE COUNTIES IN WEST CENTRAL MINNESOTA IS CANCELLED... RADAR INDICATED THAT THE SEVERE THUNDERSTORM HAD MOVED OUT OF THE WARNED AREA. THUS THE WARNING HAS BEEN CANCELLED. LAT...LON 4516 9596 4515 9553 4486 9601 4498 9619 TIME...MOT...LOC 0152Z 216DEG 40KT 4519 9578 $$ JPR
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 8:27 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 28 min |
| Sep 17, 9:07 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 38 min |
| Sep 17, 9:16 PM CDT | Severe Thunderstorm Warning | MPX | Morrison, Stearns | 32 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.