Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 234, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 6, 2011, 7:12 PM CDT for Meeker County, Stearns County, Wright County, Minnesota. It was in force for 33 min. 4 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 6, 2011, 7:12 PM CDT (00:12 UTC)
- Expired
- Aug 6, 2011, 7:45 PM CDT
- In force
- 33 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Meeker County, MN, Stearns County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 85 km from the middle of the area, began a volume at 00:13 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 6, 7:19 PM CDT | HAIL 1 | 1 Wnw Richmond, MN | 1 INCH HAIL REPORTED NEAR HWY 23. |
| Aug 6, 7:20 PM CDT | HAIL 1.5 | 5 S Cold Spring, MN | GOLFBALL TO PING PONG SIZE HAIL REPORTED FOR APPROXIMATELY 10 MINUTES. |
| Aug 6, 7:22 PM CDT | HAIL 0.88 | 1 E Roscoe, MN | |
| Aug 6, 7:27 PM CDT | HAIL 1.75 | Richmond, MN |
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, 0.2 hours before the alert went out and 83 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
- 931 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1415 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
461 WUUS53 KMPX 070012 SVRMPX MNC093-145-171-070045- /O.NEW.KMPX.SV.W.0234.110807T0012Z-110807T0045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 712 PM CDT SAT AUG 6 2011 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN MEEKER COUNTY IN CENTRAL MINNESOTA... SOUTHEASTERN STEARNS COUNTY IN CENTRAL MINNESOTA... NORTHWESTERN WRIGHT COUNTY IN CENTRAL MINNESOTA... * UNTIL 745 PM CDT * AT 708 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR RICHMOND...OR ABOUT 20 MILES WEST OF ST CLOUD...AND MOVING SOUTHEAST AT 30 MPH. LOCATIONS IN THE WARNING INCLUDE... ROSCOE... RICHMOND... EDEN VALLEY... COLD SPRING... ST NICHOLAS... WATKINS... KIMBALL... FAIRHAVEN... SOUTH HAVEN... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4538 9406 4517 9428 4541 9471 4557 9458 TIME...MOT...LOC 0012Z 300DEG 24KT 4544 9453 WIND...HAIL <50MPH 1.00IN $$
1 follow-up statement
708 WWUS53 KMPX 070028 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 728 PM CDT SAT AUG 6 2011 MNC093-145-171-070045- /O.CON.KMPX.SV.W.0234.000000T0000Z-110807T0045Z/ MEEKER MN-STEARNS MN-WRIGHT MN- 728 PM CDT SAT AUG 6 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN WRIGHT...SOUTHEASTERN STEARNS AND NORTHEASTERN MEEKER COUNTIES UNTIL 745 PM CDT... AT 722 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING QUARTER SIZE AND LARGER HAIL. THIS STORM WAS LOCATED NEAR ST NICHOLAS...OR 17 MILES SOUTHWEST OF ST CLOUD...MOVING SOUTHEAST AT 30 MPH. IN ADDITION...AT 720 PM CLOSE TO GOLF BALL SIZE HAIL WAS REPORTED NEAR RICHMOND WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... WATKINS...KIMBALL...FAIRHAVEN...SOUTH HAVEN AND KINGSTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. && LAT...LON 4553 9446 4538 9406 4517 9428 4537 9463 TIME...MOT...LOC 0027Z 300DEG 24KT 4539 9441 WIND...HAIL <50MPH 1.00IN $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 7:16 PM CDT | Special Weather Statement | MPX | Meeker | 44 min |
| Aug 6, 8:13 PM CDT | Special Weather Statement | MPX | McLeod | 47 min |
| Aug 6, 8:17 PM CDT | Severe Thunderstorm Warning | MPX | McLeod, Meeker, Wright | 43 min |
| Aug 6, 8:46 PM CDT | Severe Thunderstorm Warning | MPX | Carver, McLeod, Sibley | 44 min |
| Aug 6, 9:45 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Le Sueur, Rice, Scott | 45 min |
| Aug 6, 10:32 PM CDT | Special Weather Statement | MPX | Steele | 43 min |
| Aug 7, 7:27 AM CDT | River Flood Warning | MPX | Todd | 5 days |
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.