Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 66, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 18, 2012, 11:13 PM CDT for Stearns County, Todd County, Minnesota. It was in force for 47 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 18, 2012, 11:13 PM CDT (04:13 UTC)
- Expired
- May 19, 2012, 12:00 AM CDT
- In force
- 47 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Stearns County, MN, Todd County, MN
The radar
The Minneapolis radar (KMPX), 147 km from the middle of the area, began a volume at 04:14 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 18, 11:24 PM CDT | HAIL 1.75 | 3 S Sauk Centre, MN | HAIL AND STRONG WINDS REPORTED TOGETHER |
| May 18, 11:35 PM CDT | HAIL 1 | Sauk Centre, MN | |
| May 18, 11:36 PM CDT | HAIL 1 | Sauk Centre, MN | |
| May 18, 11:42 PM CDT | HAIL 1.25 | Sauk Centre, MN | WINDS GUST TO NEAR 40 MPH. A COUPLE INCHES OF HAIL ON THE GROUND |
| May 18, 11:50 PM CDT | HAIL 1 | 5 N Sauk Centre, MN | HAIL COVERING THE GROUND |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 4.2 hours before the alert went out and 145 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
- 20 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 3382 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
118 WUUS53 KMPX 190413 SVRMPX MNC145-153-190500- /O.NEW.KMPX.SV.W.0066.120519T0413Z-120519T0500Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1113 PM CDT FRI MAY 18 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN STEARNS COUNTY IN CENTRAL MINNESOTA... SOUTH CENTRAL TODD COUNTY IN CENTRAL MINNESOTA... * UNTIL MIDNIGHT CDT * AT 1111 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED NEAR ELROSA AND MOVING NORTH AT 20 MPH. LOCATIONS IN THE WARNING INCLUDE... MEIRE GROVE... MELROSE... SAUK CENTRE... 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. && LAT...LON 4583 9509 4583 9477 4558 9483 4559 9508 TIME...MOT...LOC 0413Z 186DEG 15KT 4563 9495 WIND...HAIL 60MPH 1.25IN $$
1 follow-up statement
273 WWUS53 KMPX 190431 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1131 PM CDT FRI MAY 18 2012 MNC145-153-190500- /O.CON.KMPX.SV.W.0066.000000T0000Z-120519T0500Z/ STEARNS MN-TODD MN- 1131 PM CDT FRI MAY 18 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL TODD AND NORTHWESTERN STEARNS COUNTIES UNTIL MIDNIGHT CDT... AT 1124 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL APPROXIMATELY 3 MILES SOUTH OF SAUK CENTRE. THIS STORM WAS LOCATED NEAR SAUK CENTRE AND MOVING NORTH AT 20 MPH. LOCATIONS IMPACTED INCLUDE... SAUK CENTRE AND WEST UNION. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN SIGNIFICANTLY DAMAGE WINDOWS...SIDING AND VEHICLES. DAMAGING WINDS ARE ALSO EXPECTED...WHICH CAN UPROOT TREES AND DOWN POWER LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4567 9508 4583 9509 4583 9477 4566 9481 TIME...MOT...LOC 0431Z 186DEG 15KT 4570 9494 WIND...HAIL 60MPH 1.75IN $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 8:21 PM CDT | Special Weather Statement | MPX | Redwood | 39 min |
| May 18, 9:34 PM CDT | Special Weather Statement | MPX | Kandiyohi | 41 min |
| May 18, 9:45 PM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 45 min |
| May 18, 10:48 PM CDT | Severe Thunderstorm Warning | MPX | Stearns | 27 min |
| May 18, 11:46 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 23 min |
| May 19, 4:38 PM CDT | Severe Thunderstorm Warning | MPX | Renville | 32 min |
| May 19, 5:17 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Renville, Sibley | 58 min |
| May 19, 5:53 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin, Wright | 52 min |
| May 19, 6:17 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin | 43 min |
| May 19, 6:33 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Sherburne | 27 min |
| May 19, 6:36 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Dakota, Hennepin, Ramsey, Washington | 54 min |
| May 19, 6:54 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Isanti | 38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.