Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 230, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 13, 2012, 7:36 PM CDT for Faribault County, Freeborn County, Minnesota. It was in force for 24 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
- Jul 13, 2012, 7:36 PM CDT (00:36 UTC)
- Expired
- Jul 13, 2012, 8:00 PM CDT
- In force
- 24 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Faribault County, MN, Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 138 km from the middle of the area, began a volume at 00:39 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 |
|---|---|---|---|
| Jul 13, 7:42 PM CDT | HAIL 1 | 5 Ne Bricelyn, MN | SIGNIFICANT CROP DAMAGE REPORTED FROM LARGE HAIL. |
| Jul 13, 7:45 PM CDT | HAIL 1 | 2 Nne Bricelyn, MN | |
| Jul 13, 8:00 PM CDT | HAIL 1.25 | 4 S Alden, MN | HAS BEEN ONGOING FOR 10 MINUTES. |
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, 0.6 hours before the alert went out and 138 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
- 286 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1653 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
127 WUUS53 KMPX 140036 SVRMPX MNC043-047-140100- /O.NEW.KMPX.SV.W.0230.120714T0036Z-120714T0100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 736 PM CDT FRI JUL 13 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA... SOUTHWESTERN FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 800 PM CDT * AT 734 PM CDT...TRAINED SPOTTERS REPORTED A SEVERE THUNDERSTORM WITH QUARTER SIZE HAIL NEAR FROST. THIS STORM WAS LOCATED NEAR BRICELYN...OR ABOUT 13 MILES EAST OF BLUE EARTH...AND MOVING EAST AT 25 MPH. WIND GUSTS TO 50 MPH WILL BE POSSIBLE WITH THIS STORM AS WELL. LOCATIONS IN THE WARNING INCLUDE... BRICELYN... KIESTER... ALDEN... 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 4370 9356 4350 9354 4350 9396 4368 9398 TIME...MOT...LOC 0036Z 266DEG 22KT 4360 9384 WIND...HAIL 60MPH 1.00IN $$
1 follow-up statement
465 WWUS53 KMPX 140047 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 747 PM CDT FRI JUL 13 2012 MNC043-047-140100- /O.CON.KMPX.SV.W.0230.000000T0000Z-120714T0100Z/ FARIBAULT MN-FREEBORN MN- 747 PM CDT FRI JUL 13 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN FREEBORN AND SOUTHEASTERN FARIBAULT COUNTIES UNTIL 800 PM CDT... AT 743 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS OF 60 MPH. THIS STORM WAS LOCATED NEAR BRICELYN...OR 16 MILES EAST OF BLUE EARTH...MOVING EAST AT 25 MPH. IN ADDITION...HAIL TO QUARTERS IN SIZE HAVE BEEN REPORTED NEAR FROST AT 730 PM AND BRICELYN AT 745 PM. LOCATIONS IMPACTED INCLUDE... KIESTER...ALDEN...WALTERS AND MANSFIELD. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN SIGNIFICANTLY DAMAGE WINDOWS...SIDING AND VEHICLES. DAMAGING WINDS ARE ALSO EXPECTED...WHICH CAN UPROOT TREES AND DOWN POWER LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4368 9389 4370 9356 4350 9354 4350 9385 TIME...MOT...LOC 0046Z 266DEG 22KT 4360 9376 WIND...HAIL 60MPH 1.75IN $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 7:12 PM CDT | Special Weather Statement | MPX | Faribault | 48 min |
| Jul 13, 7:16 PM CDT | Special Weather Statement | MPX | Steele | 44 min |
| Jul 13, 7:50 PM CDT | Severe Thunderstorm Warning | MPX | Steele | 25 min |
| Jul 13, 7:57 PM CDT | Special Weather Statement | MPX | Freeborn | 48 min |
| Jul 13, 8:16 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 31 min |
| Jul 13, 8:29 PM CDT | Severe Thunderstorm Warning | MPX | Steele | 31 min |
| Jul 13, 8:53 PM CDT | Special Weather Statement | MPX | Steele | 37 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.