Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 211, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 1, 2011, 11:09 AM CDT for Kandiyohi County, Meeker County, Stearns County, Minnesota. It was in force for 66 min. 3 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
- Aug 1, 2011, 11:09 AM CDT (16:09 UTC)
- Expired
- Aug 1, 2011, 12:15 PM CDT
- In force
- 66 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Kandiyohi County, MN, Meeker County, MN, Stearns County, MN
The radar
The Minneapolis radar (KMPX), 90 km from the middle of the area, began a volume at 16:11 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 |
|---|---|---|---|
| Aug 1, 11:55 AM CDT | TSTM WND GST 40 | Litchfield, MN | WIND 40-50ESTIMATED. VERY HEAVY RAIN WITH STREET FLOODING |
| Aug 1, 11:56 AM CDT | TSTM WND DMG | Litchfield, MN | 6-8 IN BRANCHES DOWN IN EASTERN LITCHFIELD |
| Aug 1, 11:59 AM CDT | HAIL 0.25 | Litchfield, MN |
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 |
|---|---|---|---|
| Aug 1, 4:57 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 4.2 hours before the alert went out and 88 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
- 2974 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 898 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
705 WUUS53 KMPX 011609 SVRMPX MNC067-093-145-011715- /O.NEW.KMPX.SV.W.0211.110801T1609Z-110801T1715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1109 AM CDT MON AUG 1 2011 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL KANDIYOHI COUNTY IN CENTRAL MINNESOTA... MEEKER COUNTY IN CENTRAL MINNESOTA... EXTREME SOUTH CENTRAL STEARNS COUNTY IN CENTRAL MINNESOTA... * UNTIL 1215 PM CDT * AT 1106 AM 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 NEW LONDON...OR ABOUT 13 MILES NORTHEAST OF WILLMAR...AND MOVING EAST AT 30 MPH. LOCATIONS IN THE WARNING INCLUDE... LITCHFIELD... NEW LONDON... SPICER... KANDIYOHI... HAWICK... ATWATER... GROVE CITY... MANANNAH... EDEN VALLEY... WATKINS... DARWIN... KIMBALL... DASSEL... 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 4531 9427 4498 9427 4513 9508 4535 9504 TIME...MOT...LOC 1609Z 279DEG 28KT 4529 9489 WIND...HAIL 60MPH 1.00IN $$
1 follow-up statement
667 WWUS53 KMPX 011634 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1134 AM CDT MON AUG 1 2011 MNC067-093-145-011715- /O.CON.KMPX.SV.W.0211.000000T0000Z-110801T1715Z/ KANDIYOHI MN-MEEKER MN-STEARNS MN- 1134 AM CDT MON AUG 1 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EXTREME SOUTH CENTRAL STEARNS...MEEKER AND EAST CENTRAL KANDIYOHI COUNTIES UNTIL 1215 PM CDT... AT 1129 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM EDEN VALLEY TO 5 MILES SOUTHEAST OF ATWATER...MOVING EAST AT 55 MPH. LOCATIONS IMPACTED INCLUDE... LITCHFIELD...KIMBALL...DARWIN...DASSEL AND KINGSTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS. EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. && LAT...LON 4534 9483 4531 9427 4498 9427 4511 9497 TIME...MOT...LOC 1634Z 286DEG 48KT 4530 9439 4505 9464 WIND...HAIL 70MPH 1.00IN $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 6:25 AM CDT | Areal Flood Advisory | MPX | Douglas, Pope, Stevens | 6 hr |
| Aug 1, 6:45 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stevens, Todd | 45 min |
| Aug 1, 7:13 AM CDT | Tornado Warning | MPX | Douglas, Pope | 47 min |
| Aug 1, 7:27 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Kandiyohi, Morrison, Pope, Stearns, Todd | 63 min |
| Aug 1, 8:13 AM CDT | Areal Flood Advisory | MPX | Kandiyohi, Meeker, Pope, Stearns | 3 hr |
| Aug 1, 9:00 AM CDT | Special Weather Statement | MPX | Benton, Sherburne, Stearns, Wright | 60 min |
| Aug 1, 9:39 AM CDT | Flash Flood Warning | MPX | Douglas, Pope | 3 hr |
| Aug 1, 9:44 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker | 46 min |
| Aug 1, 10:53 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Kandiyohi, Stearns | 67 min |
| Aug 1, 11:53 AM CDT | Severe Thunderstorm Warning | MPX | Sherburne, Stearns, Wright | 67 min |
| Aug 1, 12:03 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod, Meeker, Renville, Sibley | 57 min |
| Aug 1, 12:45 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin | 45 min |
| Aug 1, 1:01 PM CDT | Areal Flood Advisory | MPX | Carver, Dakota, Hennepin, Ramsey, Scott | 3 hr |
| Aug 1, 1:18 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Le Sueur, Rice, Scott, Sibley | 57 min |
| Aug 1, 1:25 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Ramsey, Washington | 65 min |
| Aug 1, 2:02 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue, Le Sueur, Rice, Steele, Waseca | 58 min |
| Aug 1, 3:04 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 37 min |
| Aug 1, 3:54 PM CDT | Special Weather Statement | MPX | Anoka, Chisago, Isanti, Mille Lacs | 51 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2011Every severe thunderstorm warning in 2011
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.