Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 232, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 13, 2012, 8:16 PM CDT for Freeborn County, Minnesota. It was in force for 31 min. 1 report 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, 8:16 PM CDT (01:16 UTC)
- Expired
- Jul 13, 2012, 8:47 PM CDT
- In force
- 31 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 128 km from the middle of the area, began a volume at 01:16 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, 8:23 PM CDT | HAIL 1 | 1 E Manchester, 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, 1.3 hours before the alert went out and 129 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.
208 WUUS53 KMPX 140116 SVRMPX MNC047-140200- /O.NEW.KMPX.SV.W.0232.120714T0116Z-120714T0200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 816 PM CDT FRI JUL 13 2012 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 900 PM CDT * AT 811 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR MANCHESTER...OR ABOUT 6 MILES WEST OF ALBERT LEA...AND MOVING EAST AT 25 MPH. LOCATIONS IN THE WARNING INCLUDE... ALBERT LEA... HAYWARD... CONGER... MANCHESTER... CLARKS GROVE... HOLLANDALE... 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 4375 9358 4384 9304 4361 9304 4357 9354 TIME...MOT...LOC 0116Z 260DEG 23KT 4367 9344 WIND...HAIL <50MPH 1.00IN $$
2 follow-up statements
507 WWUS53 KMPX 140133 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 833 PM CDT FRI JUL 13 2012 MNC047-140200- /O.CON.KMPX.SV.W.0232.000000T0000Z-120714T0200Z/ FREEBORN MN- 833 PM CDT FRI JUL 13 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN FREEBORN COUNTY UNTIL 900 PM CDT... AT 830 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR ALBERT LEA...MOVING EAST AT 25 MPH. IN ADDITION...AT 825 PM QUARTER SIZE HAIL WAS REPORTED NORTHEAST OF MANCHESTER WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... HAYWARD...CLARKS GROVE AND HOLLANDALE. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. && LAT...LON 4358 9341 4377 9345 4384 9304 4361 9304 TIME...MOT...LOC 0132Z 260DEG 23KT 4368 9332 WIND...HAIL <50MPH 1.00IN $$
660 WWUS53 KMPX 140147 SVSMPX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 847 PM CDT FRI JUL 13 2012 MNC047-140202- /O.CAN.KMPX.SV.W.0232.000000T0000Z-120714T0200Z/ FREEBORN MN- 847 PM CDT FRI JUL 13 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN FREEBORN COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4358 9341 4377 9345 4384 9304 4361 9304 TIME...MOT...LOC 0147Z 260DEG 23KT 4370 9319 $$
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, 7:36 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn | 24 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, 8:29 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.