Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 82, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 23, 2012, 5:17 PM CDT for Brown County, Nicollet County, Watonwan County, Minnesota. It was in force for 28 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, 5:17 PM CDT (22:17 UTC)
- Expired
- May 23, 2012, 5:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Brown County, MN, Nicollet County, MN, Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 22:19 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.3 hours before the alert went out and 104 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.
572 WUUS53 KMPX 232217 SVRMPX MNC015-103-165-232245- /O.NEW.KMPX.SV.W.0082.120523T2217Z-120523T2245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 517 PM CDT WED MAY 23 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN BROWN COUNTY IN SOUTH CENTRAL MINNESOTA... WEST CENTRAL NICOLLET COUNTY IN SOUTH CENTRAL MINNESOTA... NORTHWESTERN WATONWAN COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 545 PM CDT * AT 515 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED NEAR DARFUR...OR ABOUT 7 MILES NORTHWEST OF ST JAMES...AND MOVING NORTHEAST AT 60 MPH. LOCATIONS IN THE WARNING INCLUDE... ST JAMES... NEW ULM... LA SALLE... HANSKA... KLOSSNER... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS. EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4443 9458 4433 9432 4396 9464 4408 9485 TIME...MOT...LOC 2217Z 214DEG 51KT 4407 9472 WIND...HAIL 70MPH 1.00IN $$
1 follow-up statement
290 WWUS53 KMPX 232231 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 531 PM CDT WED MAY 23 2012 MNC015-103-165-232245- /O.CON.KMPX.SV.W.0082.000000T0000Z-120523T2245Z/ BROWN MN-NICOLLET MN-WATONWAN MN- 531 PM CDT WED MAY 23 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN WATONWAN...WEST CENTRAL NICOLLET AND EASTERN BROWN COUNTIES UNTIL 545 PM CDT... AT 529 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED 7 MILES SOUTHEAST OF SLEEPY EYE...OR 11 MILES SOUTHWEST OF NEW ULM...MOVING NORTH AT 50 MPH. LOCATIONS IMPACTED INCLUDE... NEW ULM AND KLOSSNER. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS. EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4443 9458 4433 9432 4396 9464 4408 9485 TIME...MOT...LOC 2231Z 202DEG 44KT 4424 9464 WIND...HAIL 70MPH 1.00IN $$
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, 5:08 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Nicollet, Sibley | 37 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.