Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 238, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 1, 2012, 6:02 PM CDT for Redwood County, Renville County, Yellow Medicine County, Minnesota. It was in force for 58 min. 5 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, 2012, 6:02 PM CDT (23:02 UTC)
- Expired
- Aug 1, 2012, 7:00 PM CDT
- In force
- 58 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 65.0 mph
Counties Redwood County, MN, Renville County, MN, Yellow Medicine County, MN
The radar
The Minneapolis radar (KMPX), 143 km from the middle of the area, began a volume at 23:02 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, 6:39 PM CDT | TSTM WND GST 67 | 2 W Redwood Falls, MN | |
| Aug 1, 6:40 PM CDT | TSTM WND GST 66 | Redwood Falls, MN | RWF AIRPORT ASOS. |
| Aug 1, 6:45 PM CDT | TSTM WND GST 70 | Redwood Falls, MN | RWF AIRPORT ASOS. |
| Aug 1, 6:51 PM CDT | TSTM WND GST 79 | Redwood Falls, MN | RWF AIRPORT ASOS. |
| Aug 1, 7:01 PM CDT | HAIL 0.75 | 1 Nw Wabasso, 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, 5:12 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 140 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
- 670 J/kg
- Mixed-layer CIN
- -340 J/kg
- Mixed-layer LCL
- 1367 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 246 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
098
WUUS53 KMPX 012302
SVRMPX
MNC127-129-173-020000-
/O.NEW.KMPX.SV.W.0238.120801T2302Z-120802T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
602 PM CDT WED AUG 1 2012
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
REDWOOD COUNTY IN SOUTHWEST MINNESOTA...
SOUTHWESTERN RENVILLE COUNTY IN CENTRAL MINNESOTA...
SOUTHEASTERN YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 700 PM CDT
* AT 558 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
CAPABLE OF PRODUCING DAMAGING WINDS OF 65 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM SACRED HEART TO VESTA TO 8
MILES EAST OF MARSHALL TO RUSSELL...AND MOVING SOUTHEAST AT 15 MPH.
NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IN THE WARNING INCLUDE...
REDWOOD FALLS...
ECHO...
VESTA...
BELVIEW...
SEAFORTH...
LUCAN...
BECHYN...
WABASSO...
NORTH REDWOOD...
MORTON...
CLEMENTS...
MORGAN...
FRANKLIN...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL. SEEK SHELTER NOW INSIDE
A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4458 9550 4475 9540 4465 9477 4439 9491
4427 9514 4421 9560 4452 9561
TIME...MOT...LOC 2302Z 294DEG 14KT 4471 9533 4454 9538
4441 9561 4438 9596
WIND...HAIL 65MPH 0.88IN
$$
JLT4 follow-up statements
769
WWUS53 KMPX 012314
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
614 PM CDT WED AUG 1 2012
MNC127-129-173-020000-
/O.CON.KMPX.SV.W.0238.000000T0000Z-120802T0000Z/
REDWOOD MN-RENVILLE MN-YELLOW MEDICINE MN-
614 PM CDT WED AUG 1 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
YELLOW MEDICINE...SOUTHWESTERN RENVILLE AND REDWOOD COUNTIES UNTIL
700 PM CDT...
AT 611 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
SACRED HEART TO VESTA TO 8 MILES WEST OF LUCAN TO RUSSELL...MOVING
SOUTHEAST AT 15 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE
DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
REDWOOD FALLS...SEAFORTH...LUCAN...WABASSO...BECHYN...NORTH
REDWOOD...MORTON...CLEMENTS...FRANKLIN...MORGAN...DELHI AND WANDA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4458 9550 4475 9540 4465 9477 4439 9491
4427 9514 4421 9560 4452 9561
TIME...MOT...LOC 2315Z 294DEG 14KT 4472 9528 4452 9535
4439 9555 4436 9590
WIND...HAIL 70MPH 0.88IN
$$
JLT358
WWUS53 KMPX 012323
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
623 PM CDT WED AUG 1 2012
MNC127-129-173-020000-
/O.CON.KMPX.SV.W.0238.000000T0000Z-120802T0000Z/
REDWOOD MN-RENVILLE MN-YELLOW MEDICINE MN-
623 PM CDT WED AUG 1 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
YELLOW MEDICINE...SOUTHWESTERN RENVILLE AND REDWOOD COUNTIES UNTIL
700 PM CDT...
AT 621 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6
MILES SOUTHEAST OF SACRED HEART TO SEAFORTH TO 6 MILES SOUTHWEST OF
LUCAN TO 6 MILES NORTHEAST OF BALATON...MOVING SOUTHEAST AT 25 MPH.
NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
REDWOOD FALLS...WABASSO...BECHYN...NORTH REDWOOD...CLEMENTS...
MORTON...MORGAN...FRANKLIN...DELHI AND WANDA.
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. HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4458 9550 4475 9540 4465 9477 4439 9491
4427 9514 4421 9560 4452 9561
TIME...MOT...LOC 2323Z 312DEG 23KT 4469 9528 4448 9531
4434 9547 4428 9577
WIND...HAIL 70MPH 0.88IN
$$
JLT327
WWUS53 KMPX 012333
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
633 PM CDT WED AUG 1 2012
MNC127-129-173-020000-
/O.CON.KMPX.SV.W.0238.000000T0000Z-120802T0000Z/
REDWOOD MN-RENVILLE MN-YELLOW MEDICINE MN-
633 PM CDT WED AUG 1 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
YELLOW MEDICINE...SOUTHWESTERN RENVILLE AND REDWOOD COUNTIES UNTIL
700 PM CDT...
AT 630 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS
OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6
MILES NORTHEAST OF BELVIEW TO WABASSO TO 7 MILES NORTHWEST OF REVERE
TO 6 MILES WEST OF TRACY...MOVING SOUTHEAST AT 25 MPH. NICKEL SIZE
HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
REDWOOD FALLS...WABASSO...BECHYN...NORTH REDWOOD...CLEMENTS...
MORTON...MORGAN...FRANKLIN...DELHI AND WANDA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4458 9550 4475 9540 4465 9477 4439 9491
4427 9514 4421 9560 4452 9561
TIME...MOT...LOC 2333Z 312DEG 23KT 4465 9521 4444 9524
4429 9540 4424 9571
WIND...HAIL 70MPH 0.88IN
$$
JLT628
WWUS53 KMPX 012342
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
642 PM CDT WED AUG 1 2012
MNC173-012355-
/O.CAN.KMPX.SV.W.0238.000000T0000Z-120802T0000Z/
YELLOW MEDICINE MN-
642 PM CDT WED AUG 1 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN YELLOW MEDICINE
COUNTY IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 4451 9559 4450 9534 4468 9533 4467 9490
4464 9477 4439 9491 4427 9514 4421 9560
TIME...MOT...LOC 2340Z 312DEG 23KT 4462 9508 4441 9516
4426 9535 4421 9566
$$
MNC127-129-020000-
/O.CON.KMPX.SV.W.0238.000000T0000Z-120802T0000Z/
REDWOOD MN-RENVILLE MN-
642 PM CDT WED AUG 1 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
RENVILLE AND REDWOOD COUNTIES UNTIL 700 PM CDT...
AT 641 PM CDT...A TRAINED WEATHER SPOTTERS MEASURED A WIND GUST OF
67 MPH ON THE WEST SIDE OF REDWOOD FALLS AT 639 PM. THIS LINE OF
SEVERE THUNDERSTORMS WILL BE CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH AS THEY MOVE TO THE SOUTHEAST AT 55 MPH. NICKEL
SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
CLEMENTS...MORTON...FRANKLIN...MORGAN AND WANDA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4451 9559 4450 9534 4468 9533 4467 9490
4464 9477 4439 9491 4427 9514 4421 9560
TIME...MOT...LOC 2340Z 312DEG 23KT 4462 9508 4441 9516
4426 9535 4421 9566
WIND...HAIL 70MPH 0.88IN
$$
JLTThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 10:10 AM CDT | Special Weather Statement | MPX | Sherburne | 50 min |
| Aug 1, 4:44 PM CDT | Special Weather Statement | MPX | Yellow Medicine | 61 min |
| Aug 1, 4:59 PM CDT | Severe Thunderstorm Warning | MPX | Yellow Medicine | 46 min |
| Aug 1, 6:47 PM CDT | Severe Thunderstorm Warning | MPX | Brown, Nicollet, Redwood, Renville, Sibley | 58 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.