Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 262, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 15, 2012, 6:01 PM CDT for Stevens County, Swift County, Minnesota. It was in force for 59 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
- Aug 15, 2012, 6:01 PM CDT (23:01 UTC)
- Expired
- Aug 15, 2012, 7:00 PM CDT
- In force
- 59 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 65.0 mph
Counties Stevens County, MN, Swift County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 15, 6:25 PM CDT | HAIL 1.25 | 5 Nw Benson, 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 15, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 176 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
- 3 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
780
WUUS53 KMPX 152301
SVRMPX
MNC149-151-160000-
/O.NEW.KMPX.SV.W.0262.120815T2301Z-120816T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
601 PM CDT WED AUG 15 2012
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN STEVENS COUNTY IN WEST CENTRAL MINNESOTA...
SWIFT COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 700 PM CDT
* AT 557 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
PRODUCING HALF DOLLAR SIZE HAIL AND DAMAGING WINDS OF 65 MPH. THIS
STORM WAS LOCATED 9 MILES EAST OF ARTICHOKE...OR ABOUT 12 MILES
SOUTH OF MORRIS...AND MOVING EAST AT 40 MPH.
LOCATIONS IN THE WARNING INCLUDE...
BENSON...
CLONTARF...
SWIFT FALLS...
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 4552 9602 4543 9575 4541 9574 4541 9526
4516 9525 4516 9557 4540 9610
TIME...MOT...LOC 2301Z 284DEG 34KT 4541 9592
WIND...HAIL 65MPH 1.25IN
$$4 follow-up statements
415
WWUS53 KMPX 152317
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
617 PM CDT WED AUG 15 2012
MNC149-152333-
/O.CAN.KMPX.SV.W.0262.000000T0000Z-120816T0000Z/
STEVENS MN-
617 PM CDT WED AUG 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STEVENS COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4541 9588 4541 9527 4516 9525 4516 9557
4533 9594
TIME...MOT...LOC 2318Z 288DEG 29KT 4535 9575
$$
MNC151-160000-
/O.CON.KMPX.SV.W.0262.000000T0000Z-120816T0000Z/
SWIFT MN-
617 PM CDT WED AUG 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SWIFT COUNTY
UNTIL 700 PM CDT...
AT 615 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS OF 65 MPH. THIS STORM WAS LOCATED 9 MILES WEST OF BENSON...
MOVING EAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
BENSON...DANVERS...CLONTARF...SWIFT FALLS...DE GRAFF...MURDOCK AND
KERKHOVEN.
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 4541 9588 4541 9527 4516 9525 4516 9557
4533 9594
TIME...MOT...LOC 2318Z 288DEG 29KT 4535 9575
WIND...HAIL 60MPH 1.00IN
$$681
WWUS53 KMPX 152329
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
629 PM CDT WED AUG 15 2012
MNC151-160000-
/O.CON.KMPX.SV.W.0262.000000T0000Z-120816T0000Z/
SWIFT MN-
629 PM CDT WED AUG 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN SWIFT
COUNTY UNTIL 700 PM CDT...
AT 626 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS OF 65 MPH. THIS STORM WAS LOCATED NEAR BENSON...MOVING
SOUTHEAST AT 45 MPH.
LOCATIONS IMPACTED INCLUDE...
SWIFT FALLS...DE GRAFF...MURDOCK AND KERKHOVEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
&&
LAT...LON 4528 9583 4541 9575 4541 9527 4516 9525
4516 9557
TIME...MOT...LOC 2329Z 293DEG 38KT 4529 9559
WIND...HAIL 60MPH 1.00IN
$$439
WWUS53 KMPX 152342
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
642 PM CDT WED AUG 15 2012
MNC151-160000-
/O.CON.KMPX.SV.W.0262.000000T0000Z-120816T0000Z/
SWIFT MN-
642 PM CDT WED AUG 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN SWIFT
COUNTY UNTIL 700 PM CDT...
AT 640 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS OF 65 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 13 MILES NORTHEAST OF BENSON TO 12 MILES SOUTHEAST OF
BENSON...MOVING SOUTHEAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
MURDOCK AND KERKHOVEN.
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 4519 9563 4524 9572 4541 9561 4541 9527
4516 9525 4516 9557
TIME...MOT...LOC 2342Z 296DEG 30KT 4538 9534 4515 9549
WIND...HAIL 60MPH 1.00IN
$$795
WWUS53 KMPX 152354 RRA
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
654 PM CDT WED AUG 15 2012
MNC151-160000-
/O.CON.KMPX.SV.W.0262.000000T0000Z-120816T0000Z/
SWIFT MN-
654 PM CDT WED AUG 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN SWIFT
COUNTY UNTIL 700 PM CDT...
AT 650 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS OF 65 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 15 MILES EAST OF BENSON TO 15 MILES SOUTHEAST OF
BENSON...MOVING SOUTHEAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHEASTERN SWIFT COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
&&
LAT...LON 4527 9551 4539 9550 4539 9527 4516 9525
4516 9557
TIME...MOT...LOC 2355Z 296DEG 30KT 4532 9524 4511 9540
WIND...HAIL 60MPH 1.00IN
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 5:02 PM CDT | Special Weather Statement | MPX | Douglas, Stevens | 73 min |
| Aug 15, 5:19 PM CDT | Severe Thunderstorm Warning | MPX | Stevens | 41 min |
| Aug 15, 5:48 PM CDT | Severe Thunderstorm Warning | MPX | Pope, Stevens | 56 min |
| Aug 15, 6:36 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Swift | 54 min |
| Aug 15, 6:57 PM CDT | Special Weather Statement | MPX | Todd | 48 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.