Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 236, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 26, 2012, 4:47 PM CDT for 4 counties in Minnesota. It was in force for 43 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
- Jul 26, 2012, 4:47 PM CDT (21:47 UTC)
- Expired
- Jul 26, 2012, 5:30 PM CDT
- In force
- 43 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Le Sueur County, MN, McLeod County, MN, Scott County, MN, Sibley County, MN
The radar
The Minneapolis radar (KMPX), 59 km from the middle of the area, began a volume at 21:46 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 12:00Z, 9.8 hours before the alert went out and 57 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
- 1848 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -67 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
062 WUUS53 KMPX 262147 SVRMPX MNC079-085-139-143-262230- /O.NEW.KMPX.SV.W.0236.120726T2147Z-120726T2230Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 447 PM CDT THU JUL 26 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA... SOUTH CENTRAL MCLEOD COUNTY IN CENTRAL MINNESOTA... SOUTHWESTERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA... SIBLEY COUNTY IN CENTRAL MINNESOTA... * UNTIL 530 PM CDT * AT 442 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES SOUTH OF BROWNTON...OR ABOUT 9 MILES NORTHWEST OF GAYLORD...AND MOVING SOUTHEAST AT 35 MPH. LOCATIONS IN THE WARNING INCLUDE... GAYLORD... LE SUEUR... WINTHROP... NEW AUBURN... ARLINGTON... RUSH RIVER... HENDERSON... BELLE PLAINE... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4450 9452 4472 9437 4463 9371 4445 9387 TIME...MOT...LOC 2147Z 294DEG 32KT 4462 9431 WIND...HAIL 60MPH <.75IN $$
1 follow-up statement
474 WWUS53 KMPX 262204 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 504 PM CDT THU JUL 26 2012 MNC085-262219- /O.CAN.KMPX.SV.W.0236.000000T0000Z-120726T2230Z/ MCLEOD MN- 504 PM CDT THU JUL 26 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MCLEOD COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4452 9428 4469 9419 4463 9371 4445 9387 TIME...MOT...LOC 2204Z 288DEG 34KT 4457 9407 $$ MNC079-139-143-262230- /O.CON.KMPX.SV.W.0236.000000T0000Z-120726T2230Z/ LE SUEUR MN-SCOTT MN-SIBLEY MN- 504 PM CDT THU JUL 26 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN SIBLEY...SOUTHWESTERN SCOTT AND NORTHWESTERN LE SUEUR COUNTIES UNTIL 530 PM CDT... AT 500 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED NEAR ARLINGTON...OR 5 MILES EAST OF GAYLORD... MOVING EAST AT 40 MPH. LOCATIONS IMPACTED INCLUDE... LE SUEUR...HENDERSON AND BELLE PLAINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. && LAT...LON 4452 9428 4469 9419 4463 9371 4445 9387 TIME...MOT...LOC 2204Z 288DEG 34KT 4457 9407 WIND...HAIL 60MPH <.75IN $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 8:10 PM CDT | Special Weather Statement | MPX | Douglas, Pope, Todd | 80 min |
| Jul 25, 9:58 PM CDT | Special Weather Statement | MPX | Kandiyohi | 62 min |
| Jul 26, 4:17 PM CDT | Special Weather Statement | MPX | Sibley | 58 min |
| Jul 26, 5:27 PM CDT | Special Weather Statement | MPX | Le Sueur | 48 min |
| Jul 26, 5:54 PM CDT | Special Weather Statement | MPX | Dakota | 51 min |
| Jul 26, 6:30 PM CDT | Special Weather Statement | MPX | Goodhue | 45 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2012Every severe thunderstorm warning in 2012
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.