Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 5, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 15, 2012, 5:44 PM CDT for Wright 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
- Apr 15, 2012, 5:44 PM CDT (22:44 UTC)
- Expired
- Apr 15, 2012, 6:05 PM CDT
- In force
- 21 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Wright County, MN
The radar
The Minneapolis radar (KMPX), 59 km from the middle of the area, began a volume at 22:47 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 |
|---|---|---|---|
| Apr 15, 3:37 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.7 hours before the alert went out and 56 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
- 502 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
868 WUUS53 KMPX 152244 SVRMPX MNC171-152315- /O.NEW.KMPX.SV.W.0005.120415T2244Z-120415T2315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 544 PM CDT SUN APR 15 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN WRIGHT COUNTY IN CENTRAL MINNESOTA... * UNTIL 615 PM CDT * AT 543 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HOWARD LAKE...OR ABOUT 15 MILES SOUTHWEST OF BUFFALO...AND MOVING NORTH AT 45 MPH. LOCATIONS IN THE WARNING INCLUDE... HOWARD LAKE... COKATO... MAPLE LAKE... ANNANDALE... SOUTH HAVEN... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SUNDAY EVENING FOR SOUTHERN MINNESOTA AND NORTHWESTERN WISCONSIN. && LAT...LON 4529 9425 4532 9398 4499 9402 4499 9425 TIME...MOT...LOC 2244Z 185DEG 40KT 4506 9411 WIND...HAIL 60MPH 1.00IN $$
2 follow-up statements
639 WWUS53 KMPX 152256 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 556 PM CDT SUN APR 15 2012 MNC171-152315- /O.CON.KMPX.SV.W.0005.000000T0000Z-120415T2315Z/ WRIGHT MN- 556 PM CDT SUN APR 15 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN WRIGHT COUNTY UNTIL 615 PM CDT... AT 552 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES NORTH OF HOWARD LAKE...OR 11 MILES WEST OF BUFFALO...MOVING NORTH AT 45 MPH. LOCATIONS IMPACTED INCLUDE... MAPLE LAKE...ANNANDALE AND SOUTH HAVEN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA UNTIL 1100 PM CDT. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. && LAT...LON 4529 9425 4532 9398 4499 9402 4499 9425 TIME...MOT...LOC 2255Z 185DEG 40KT 4518 9409 WIND...HAIL 60MPH 1.00IN $$ JRB
847 WWUS53 KMPX 152305 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 605 PM CDT SUN APR 15 2012 MNC171-152320- /O.CAN.KMPX.SV.W.0005.000000T0000Z-120415T2315Z/ WRIGHT MN- 605 PM CDT SUN APR 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WRIGHT COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT! LAT...LON 4529 9425 4532 9398 4499 9402 4499 9425 TIME...MOT...LOC 2305Z 185DEG 40KT 4529 9407 $$ JRB
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 4:02 AM CDT | Wind Advisory | MPX | Blue Earth, Chippewa, Douglas, Faribault, Freeborn, Kandiyohi and 11 more | 33 hr |
| Apr 15, 4:02 AM CDT | Wind Advisory | MPX | Blue Earth, Brown, Faribault, Freeborn, Le Sueur, McLeod and 8 more | 33 hr |
| Apr 15, 12:05 PM CDT | Special Weather Statement | MPX | Benton, Chisago, Douglas, Isanti, Kanabec, Mille Lacs and 6 more | 55 min |
| Apr 15, 3:28 PM CDT | Special Weather Statement | MPX | Chippewa, Lac qui Parle, Yellow Medicine | 62 min |
| Apr 15, 4:19 PM CDT | Special Weather Statement | MPX | Brown | 41 min |
| Apr 15, 4:20 PM CDT | Special Weather Statement | MPX | Chippewa, Yellow Medicine | 40 min |
| Apr 15, 4:52 PM CDT | Tornado Warning | MPX | Renville, Sibley | 26 min |
| Apr 15, 4:54 PM CDT | Special Weather Statement | MPX | Nicollet | 36 min |
| Apr 15, 5:23 PM CDT | Special Weather Statement | MPX | Blue Earth, Le Sueur | 52 min |
| Apr 15, 5:23 PM CDT | Tornado Warning | MPX | McLeod, Sibley | 37 min |
| Apr 15, 5:38 PM CDT | Tornado Warning | MPX | McLeod, Sibley | 16 min |
| Apr 15, 5:43 PM CDT | Tornado Warning | MPX | Carver, McLeod, Wright | 32 min |
| Apr 15, 6:30 PM CDT | Special Weather Statement | MPX | Hennepin | 30 min |
| Apr 15, 6:59 PM CDT | Special Weather Statement | MPX | Anoka, Ramsey, Washington | 31 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.