Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 263, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 15, 2012, 6:36 PM CDT for Chippewa County, Swift County, Minnesota. It was in force for 54 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
- Aug 15, 2012, 6:36 PM CDT (23:36 UTC)
- Expired
- Aug 15, 2012, 7:30 PM CDT
- In force
- 54 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Chippewa County, MN, Swift County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 15, 6:52 PM CDT | HAIL 0.88 | 10 Nnw Gluek, MN | |
| Aug 15, 7:16 PM CDT | HAIL 1 | 1 Ne Clara City, MN | |
| Aug 15, 7:24 PM CDT | HAIL 1 | 4 E Clara City, MN | AT THE INTERSECTION OF HWY 7 AND 160TH AVE |
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, 11.6 hours before the alert went out and 156 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.
457
WUUS53 KMPX 152336
SVRMPX
MNC023-151-160030-
/O.NEW.KMPX.SV.W.0263.120815T2336Z-120816T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
636 PM CDT WED AUG 15 2012
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA...
SOUTHEASTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 730 PM CDT
* AT 631 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60 MPH. THIS
STORM WAS LOCATED 12 MILES SOUTH OF BENSON...AND MOVING SOUTHEAST
AT 30 MPH.
LOCATIONS IN THE WARNING INCLUDE...
GLUEK...
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 4525 9577 4516 9558 4516 9525 4489 9525
4489 9548 4509 9579
TIME...MOT...LOC 2336Z 295DEG 25KT 4513 9562
WIND...HAIL 60MPH 1.00IN
$$3 follow-up statements
420
WWUS53 KMPX 152354
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
654 PM CDT WED AUG 15 2012
MNC151-160009-
/O.CAN.KMPX.SV.W.0263.000000T0000Z-120816T0030Z/
SWIFT MN-
654 PM CDT WED AUG 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SWIFT COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4515 9564 4516 9543 4515 9542 4515 9525
4489 9525 4489 9548 4505 9572
TIME...MOT...LOC 2354Z 295DEG 25KT 4508 9550
$$
MNC023-160030-
/O.CON.KMPX.SV.W.0263.000000T0000Z-120816T0030Z/
CHIPPEWA MN-
654 PM CDT WED AUG 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA UNTIL 730 PM CDT...
AT 650 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING
WINDS OF 65 MPH. THIS STORM WAS LOCATED 13 MILES NORTHEAST OF
MONTEVIDEO...MOVING SOUTHEAST AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
GLUEK...MAYNARD AND CLARA CITY.
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.
THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
&&
LAT...LON 4515 9564 4516 9543 4515 9542 4515 9525
4489 9525 4489 9548 4505 9572
TIME...MOT...LOC 2354Z 295DEG 25KT 4508 9550
WIND...HAIL 60MPH 1.75IN
$$645
WWUS53 KMPX 160008
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
708 PM CDT WED AUG 15 2012
MNC023-160030-
/O.CON.KMPX.SV.W.0263.000000T0000Z-120816T0030Z/
CHIPPEWA MN-
708 PM CDT WED AUG 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA UNTIL 730 PM CDT...
AT 703 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING
WINDS OF 65 MPH. THIS STORM WAS LOCATED 16 MILES EAST OF
MONTEVIDEO...MOVING SOUTHEAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
CLARA CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN
SIGNIFICANTLY DAMAGE WINDOWS...SIDING AND VEHICLES. DAMAGING WINDS
ARE ALSO EXPECTED...WHICH CAN UPROOT TREES AND DOWN POWER LINES. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4515 9551 4515 9526 4489 9525 4489 9548
4497 9559
TIME...MOT...LOC 0008Z 298DEG 30KT 4501 9536
WIND...HAIL 60MPH 1.75IN
$$106
WWUS53 KMPX 160021
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
721 PM CDT WED AUG 15 2012
MNC023-160030-
/O.CON.KMPX.SV.W.0263.000000T0000Z-120816T0030Z/
CHIPPEWA MN-
721 PM CDT WED AUG 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA UNTIL 730 PM CDT...
AT 717 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 15 MILES NORTHEAST OF
GRANITE FALLS...MOVING SOUTHEAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF EXTREME SOUTHEASTERN CHIPPEWA 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 4502 9542 4515 9538 4515 9527 4513 9526
4489 9525 4489 9548
TIME...MOT...LOC 0021Z 298DEG 30KT 4494 9527
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, 6:01 PM CDT | Severe Thunderstorm Warning | MPX | Stevens, Swift | 59 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.