Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 21, 2007, 7:58 PM CDT for Rice County, Steele County, Waseca County, Minnesota. It was in force for 37 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
- Mar 21, 2007, 7:58 PM CDT (00:58 UTC)
- Expired
- Mar 21, 2007, 8:35 PM CDT
- In force
- 37 min
- Issued by
- NWS Twin Cities, MN
- Area
- Counties, with a storm outline in the text
Counties Rice County, MN, Steele County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 74 km from the middle of the area, began a volume at 00:58 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, 1.0 hours before the alert went out and 75 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
- 530 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -79 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KMPX 220100 SVRMPX MNC131-147-161-220145- /O.NEW.KMPX.SV.W.0004.070322T0058Z-070322T0145Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 758 PM CDT WED MAR 21 2007 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RICE COUNTY IN SOUTH CENTRAL MINNESOTA... WASECA COUNTY IN SOUTH CENTRAL MINNESOTA... STEELE COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 845 PM CDT * AT 754 PM CDT...TRAINED SPOTTERS REPORTED A SEVERE THUNDERSTORM WITH PENNY SIZE HAIL BETWEEN WASECA AND JANESVILLE. THIS STORM WAS LOCATED NEAR WASECA...OR ABOUT 21 MILES SOUTHEAST OF LE CENTER...AND MOVING EAST AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... FARIBAULT... RUSKIN... OWATONNA... WARSAW... MEDFORD... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 4423 9352 4402 9353 4412 9306 4442 9305 $$
2 follow-up statements
000 WWUS53 KMPX 220117 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 814 PM CDT WED MAR 21 2007 MNC131-147-161-220145- /O.CON.KMPX.SV.W.0004.000000T0000Z-070322T0145Z/ RICE MN-WASECA MN-STEELE MN- 814 PM CDT WED MAR 21 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR STEELE...WASECA AND RICE COUNTIES... AT 811 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED NEAR MEDFORD...OR ABOUT 17 MILES NORTHWEST OF CLAREMONT...AND MOVING EAST AT 35 MPH. DOPPLER RADAR ALSO INDICATED SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL...7 MILES NORTHWEST OF OWATONNA AND 10 MILES SOUTH OF WASECA. THESE STORMS WERE MOVING EAST AT 35 MPH. LOCATIONS IN THE WARNING INCLUDE WARSAW...RUSKIN...MOLAND... MERTON...DEERFIELD...CLINTON FALLS...WASECA...NERSTRAND... MORRISTOWN...MEDFORD AND FARIBAULT. THESE ARE DANGEROUS STORMS. PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 4423 9352 4402 9353 4412 9306 4442 9305 $$
000 WWUS53 KMPX 220135 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 832 PM CDT WED MAR 21 2007 MNC131-147-161-220142- /O.CAN.KMPX.SV.W.0004.000000T0000Z-070322T0145Z/ RICE MN-WASECA MN-STEELE MN- 832 PM CDT WED MAR 21 2007 ...THE SEVERE THUNDERSTORM WARNING FOR STEELE...WASECA AND RICE COUNTIES IS CANCELLED... AT 832 PM CDT...DOPPLER RADAR INDICATED THAT THUNDERSTORMS OVER EASTERN RICE COUNTY AND NORTHERN STEELE COUNTY...BETWEEN NERSTRAND AND OWATONNA...HAD WEAKENED BELOW SEVERE LIMITS. THUNDERSTORMS HAD MOVED OUT OF WASECA COUNTY. LAT...LON 4423 9352 4402 9353 4412 9306 4442 9305 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 7:01 PM CDT | Severe Thunderstorm Warning | MPX | Faribault | 29 min |
| Mar 21, 7:53 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 52 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.