Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 101, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at May 27, 2012, 6:57 PM CDT for Le Sueur County, Rice County, Scott County, Minnesota. It was in force for 48 min. 2 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 27, 2012, 6:57 PM CDT (23:57 UTC)
- Expired
- May 27, 2012, 7:45 PM CDT
- In force
- 48 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 65.0 mph
Counties Le Sueur County, MN, Rice County, MN, Scott County, MN
The radar
The Minneapolis radar (KMPX), 37 km from the middle of the area, began a volume at 23:58 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 27, 7:00 PM CDT | HAIL 1 | 2 Nw Le Center, MN | SMALL BRANCHES ALSO DOWN. WIND DRIVEN HAIL BROKE WINDOW. |
| May 27, 7:12 PM CDT | HAIL 1 | 1 Se New Prague, MN | 55 TO 60 MPH WINDS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 27, 6:08 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 12.0 hours before the alert went out and 37 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
- 845 J/kg
- Mixed-layer CIN
- -438 J/kg
- Mixed-layer LCL
- 662 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 380 m²/s²
- 0-3 km storm-relative helicity
- 375 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
688 WUUS53 KMPX 272357 SVRMPX MNC079-131-139-280045- /O.NEW.KMPX.SV.W.0101.120527T2357Z-120528T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 657 PM CDT SUN MAY 27 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... LE SUEUR COUNTY IN SOUTH CENTRAL MINNESOTA... NORTHWESTERN RICE COUNTY IN SOUTH CENTRAL MINNESOTA... SOUTHERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA... * UNTIL 745 PM CDT * AT 654 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 65 MPH. THIS STORM WAS LOCATED NEAR MONTGOMERY...OR ABOUT 15 MILES EAST OF LE SUEUR...AND MOVING NORTH AT 30 MPH. LOCATIONS IN THE WARNING INCLUDE... LE CENTER... KILKENNY... ST HENRY... MONTGOMERY... NEW PRAGUE... VESELI... JORDAN... 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. WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4467 9369 4465 9333 4427 9358 4433 9388 TIME...MOT...LOC 2357Z 202DEG 27KT 4443 9360 WIND...HAIL 65MPH 1.00IN $$
1 follow-up statement
342 WWUS53 KMPX 280005 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 705 PM CDT SUN MAY 27 2012 MNC079-131-139-280045- /O.CON.KMPX.SV.W.0101.000000T0000Z-120528T0045Z/ LE SUEUR MN-RICE MN-SCOTT MN- 705 PM CDT SUN MAY 27 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL SCOTT...NORTHWESTERN RICE AND LE SUEUR COUNTIES UNTIL 745 PM CDT... AT 703 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS OF 65 MPH. THIS STORM WAS LOCATED NEAR LE CENTER...OR 11 MILES EAST OF LE SUEUR...MOVING NORTH AT 35 MPH. LOCATIONS IMPACTED INCLUDE... MONTGOMERY...VESELI...NEW PRAGUE...JORDAN...HEIDELBERG...HELENA AND ST BENEDICT. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN SIGNIFICANTLY DAMAGE WINDOWS...SIDING AND VEHICLES. DAMAGING WINDS ARE ALSO EXPECTED...WHICH CAN UPROOT TREES AND DOWN POWER LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. WIND DAMAGE WITH THIS STORM WILL OCCUR WELL AHEAD OF ANY RAIN OR LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4467 9369 4465 9333 4427 9358 4433 9388 TIME...MOT...LOC 0005Z 199DEG 29KT 4444 9369 WIND...HAIL 60MPH 1.75IN $$ JLT
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 9:50 PM CDT | River Flood Warning | MPX | Carver | 8 days |
| May 26, 10:30 PM CDT | Special Weather Statement | MPX | Benton, Chisago, Isanti | 60 min |
| May 26, 11:03 PM CDT | Special Weather Statement | MPX | Douglas, Pope, Stearns, Stevens | 57 min |
| May 26, 11:11 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stearns | 49 min |
| May 26, 11:51 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Douglas, Morrison, Pope, Stearns, Todd | 54 min |
| May 27, 12:41 AM CDT | Special Weather Statement | MPX | Kanabec, Mille Lacs | 64 min |
| May 27, 12:52 AM CDT | Special Weather Statement | MPX | Morrison | 53 min |
| May 27, 1:44 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs | 44 min |
| May 27, 2:03 AM CDT | Flash Flood Warning | MPX | Kanabec, Mille Lacs, Morrison | 3 hr |
| May 27, 3:32 AM CDT | Flash Flood Watch | MPX | Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 22 more | 26 hr |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Goodhue | 50 hr |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Dakota, Hennepin, Scott | 5 days |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Wright | 50 hr |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Hennepin, Wright | 47 hr |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Benton, Sherburne, Stearns | 3 days |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Anoka, Hennepin | 50 hr |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Dakota, Ramsey, Washington | 3 days |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Dakota, Washington | 53 hr |
| May 27, 9:08 AM CDT | River Flood Watch | MPX | Goodhue | 51 hr |
| May 27, 5:07 PM CDT | Special Weather Statement | MPX | Faribault, Steele, Waseca | 38 min |
| May 27, 6:11 PM CDT | Severe Thunderstorm Warning | MPX | Chisago | 49 min |
| May 27, 6:38 PM CDT | Special Weather Statement | MPX | Le Sueur | 52 min |
| May 27, 6:45 PM CDT | Special Weather Statement | MPX | Renville | 30 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.