Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 81, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 23, 2012, 5:08 PM CDT for McLeod County, Nicollet County, Sibley 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
- May 23, 2012, 5:08 PM CDT (22:08 UTC)
- Expired
- May 23, 2012, 5:45 PM CDT
- In force
- 37 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 65.0 mph
Counties McLeod County, MN, Nicollet County, MN, Sibley County, MN
The radar
The Minneapolis radar (KMPX), 65 km from the middle of the area, began a volume at 22:10 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, 10.1 hours before the alert went out and 63 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
- 1960 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 354 m²/s²
- 0-3 km storm-relative helicity
- 362 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
546 WUUS53 KMPX 232208 SVRMPX MNC085-103-143-232245- /O.NEW.KMPX.SV.W.0081.120523T2208Z-120523T2245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 508 PM CDT WED MAY 23 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL MCLEOD COUNTY IN CENTRAL MINNESOTA... NORTH CENTRAL NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA... CENTRAL SIBLEY COUNTY IN CENTRAL MINNESOTA... * UNTIL 545 PM CDT * AT 506 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING DAMAGING WINDS OF 65 MPH. THIS STORM WAS LOCATED NEAR KLOSSNER...OR ABOUT 6 MILES NORTH OF NEW ULM...AND MOVING NORTHEAST AT 55 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. LOCATIONS IN THE WARNING INCLUDE... GAYLORD... ST GEORGE... LAFAYETTE... WINTHROP... NEW AUBURN... ARLINGTON... GREEN ISLE... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS! && LAT...LON 4471 9432 4472 9392 4436 9438 4443 9458 TIME...MOT...LOC 2208Z 215DEG 47KT 4442 9444 WIND...HAIL 65MPH 0.88IN $$
1 follow-up statement
745 WWUS53 KMPX 232224 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 524 PM CDT WED MAY 23 2012 MNC085-103-143-232245- /O.CON.KMPX.SV.W.0081.000000T0000Z-120523T2245Z/ MCLEOD MN-NICOLLET MN-SIBLEY MN- 524 PM CDT WED MAY 23 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL SIBLEY...NORTH CENTRAL NICOLLET AND SOUTH CENTRAL MCLEOD COUNTIES UNTIL 545 PM CDT... AT 519 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS OF 65 MPH. THIS STORM WAS LOCATED NEAR WINTHROP...OR 5 MILES SOUTHWEST OF GAYLORD... MOVING NORTHEAST AT 45 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS. LOCATIONS IMPACTED INCLUDE... NEW AUBURN...ARLINGTON AND GREEN ISLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS! && LAT...LON 4471 9432 4472 9392 4436 9438 4443 9458 TIME...MOT...LOC 2225Z 221DEG 39KT 4457 9425 WIND...HAIL 60MPH 0.88IN $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 3:23 AM CDT | Flash Flood Watch | MPX | Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 22 more | 34 hr |
| May 23, 10:56 AM CDT | Wind Advisory | MPX | Blue Earth, Faribault, Freeborn, Martin, Steele, Waseca | 8 hr |
| May 23, 12:39 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Todd | 51 min |
| May 23, 1:03 PM CDT | Special Weather Statement | MPX | Kanabec | 27 min |
| May 23, 2:06 PM CDT | Special Weather Statement | MPX | Chippewa, Douglas, Kandiyohi, Lac qui Parle, Morrison, Pope and 4 more | 84 min |
| May 23, 5:17 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Nicollet, Watonwan | 28 min |
| May 23, 5:45 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Nicollet, Sibley | 34 min |
| May 23, 5:59 PM CDT | Special Weather Statement | MPX | Redwood | 46 min |
| May 23, 6:51 PM CDT | Special Weather Statement | MPX | Renville | 39 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.