Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 12, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 1, 2012, 5:17 PM CDT for Redwood County, Yellow Medicine County, Minnesota. It was in force for 32 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 1, 2012, 5:17 PM CDT (22:17 UTC)
- Expired
- May 1, 2012, 5:49 PM CDT
- In force
- 32 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Redwood County, MN, Yellow Medicine County, MN
The radar
The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 22:18 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 |
|---|---|---|---|
| May 1, 2:59 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 10.3 hours before the alert went out and 140 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
- 1291 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
496 WUUS53 KMPX 012217 SVRMPX MNC127-173-012300- /O.NEW.KMPX.SV.W.0012.120501T2217Z-120501T2300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 517 PM CDT TUE MAY 1 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... REDWOOD COUNTY IN SOUTHWEST MINNESOTA... EXTREME SOUTHEASTERN YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA... * UNTIL 600 PM CDT * AT 513 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED 7 MILES NORTH OF TRACY...OR ABOUT 10 MILES SOUTHEAST OF MARSHALL...AND MOVING NORTHEAST AT 40 MPH. LOCATIONS IN THE WARNING INCLUDE... REDWOOD FALLS... LUCAN... VESTA... SEAFORTH... WABASSO... CLEMENTS... NORTH REDWOOD... MORGAN... 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. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING FOR SOUTHERN MINNESOTA. && LAT...LON 4463 9520 4443 9487 4420 9559 4450 9559 TIME...MOT...LOC 2217Z 241DEG 34KT 4436 9560 WIND...HAIL 60MPH 1.00IN $$
1 follow-up statement
983 WWUS53 KMPX 012249 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 549 PM CDT TUE MAY 1 2012 MNC127-173-012304- /O.CAN.KMPX.SV.W.0012.000000T0000Z-120501T2300Z/ REDWOOD MN-YELLOW MEDICINE MN- 549 PM CDT TUE MAY 1 2012 ...THE SEVERE THUNDERSTORM WARNING FOR YELLOW MEDICINE AND REDWOOD COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY...HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES. LAT...LON 4463 9520 4443 9487 4420 9559 4450 9559 TIME...MOT...LOC 2249Z 241DEG 34KT 4451 9523 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 4:41 AM CDT | Special Weather Statement | MPX | Douglas, Morrison, Pope, Stevens, Todd | 79 min |
| May 1, 4:12 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stearns | 33 min |
| May 1, 4:40 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne, Stearns, Wright | 35 min |
| May 1, 4:43 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stearns | 47 min |
| May 1, 4:46 PM CDT | Tornado Warning | MPX | Pope, Stearns | 44 min |
| May 1, 5:07 PM CDT | Tornado Warning | MPX | Sherburne, Stearns, Wright | 38 min |
| May 1, 5:08 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Yellow Medicine | 67 min |
| May 1, 5:09 PM CDT | Tornado Warning | MPX | Stearns | 36 min |
| May 1, 5:23 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Morrison, Stearns | 37 min |
| May 1, 5:38 PM CDT | Tornado Warning | MPX | Sherburne | 37 min |
| May 1, 5:44 PM CDT | Tornado Warning | MPX | Benton, Sherburne, Stearns | 46 min |
| May 1, 6:08 PM CDT | Severe Thunderstorm Warning | MPX | Redwood | 52 min |
| May 1, 6:14 PM CDT | Severe Thunderstorm Warning | MPX | Isanti, Sherburne | 46 min |
| May 1, 6:25 PM CDT | Tornado Warning | MPX | Benton, Sherburne | 35 min |
| May 1, 6:43 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood | 62 min |
| May 1, 6:56 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Mille Lacs, Sherburne | 34 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.