Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 209, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 3, 2012, 3:25 AM CDT for Saint Croix County, Wisconsin; 5 counties in Minnesota. It was in force for 50 min. 2 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 3, 2012, 3:25 AM CDT (08:25 UTC)
- Expired
- Jul 3, 2012, 4:15 AM CDT
- In force
- 50 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Anoka County, MN, Dakota County, MN, Hennepin County, MN, Ramsey County, MN, Washington County, MN, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 50 km from the middle of the area, began a volume at 08:27 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 3, 3:33 AM CDT | TSTM WND GST 46 | Minneapolis, MN | MSP AIRPORT ASOS |
| Jul 3, 3:41 AM CDT | TSTM WND GST 54 | St Paul, MN | AIRPORT ASOS |
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, 8.4 hours before the alert went out and 52 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
- 2216 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 2064 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.5
The text
As transmitted, in the capitals the NWS used until 2016.
846
WUUS53 KMPX 030825
SVRMPX
MNC003-037-053-123-163-WIC109-030915-
/O.NEW.KMPX.SV.W.0209.120703T0825Z-120703T0915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
325 AM CDT TUE JUL 3 2012
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA...
NORTHWESTERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...
HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...
WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA...
WESTERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN...
* UNTIL 415 AM CDT
* AT 322 AM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM FOREST
LAKE TO ARDEN HILLS TO NEW HOPE...AND MOVING SOUTHEAST AT 35 MPH.
LOCATIONS IN THE WARNING INCLUDE...
FOREST LAKE...
PLYMOUTH...
MINNEAPOLIS...
ST PAUL...
NORTH OAKS...
ROBBINSDALE...
COLUMBIA HEIGHTS...
ARDEN HILLS...
SHOREVIEW...
HILLTOP...
NEW BRIGHTON...
CENTERVILLE...
CRYSTAL...
MEDICINE LAKE...
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 4529 9295 4510 9249 4486 9274 4476 9329
4505 9364 4515 9327 4530 9302
TIME...MOT...LOC 0826Z 309DEG 29KT 4523 9295 4507 9313
4501 9338
WIND...HAIL 60MPH 1.00IN
$$
JPC3 follow-up statements
707
WWUS53 KMPX 030851
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
351 AM CDT TUE JUL 3 2012
MNC003-053-030905-
/O.CAN.KMPX.SV.W.0209.000000T0000Z-120703T0915Z/
ANOKA MN-HENNEPIN MN-
351 AM CDT TUE JUL 3 2012
...THE SEVERE THUNDERSTORM WARNING FOR HENNEPIN AND SOUTHEASTERN
ANOKA COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA. THEREFORE...THE SEVERE THUNDERSTORM WARNING FOR
HENNEPIN AND SOUTHEASTERN ANOKA COUNTIES HAS BEEN CANCELLED.
LAT...LON 4529 9295 4510 9249 4486 9274 4476 9329
4479 9332 4481 9325 4489 9317 4491 9320
4501 9320 4512 9323 4513 9302 4529 9301
TIME...MOT...LOC 0850Z 289DEG 39KT 4515 9255 4500 9273
4494 9299
$$
MNC037-123-163-WIC109-030915-
/O.CON.KMPX.SV.W.0209.000000T0000Z-120703T0915Z/
DAKOTA MN-RAMSEY MN-WASHINGTON MN-ST. CROIX WI-
351 AM CDT TUE JUL 3 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN ST.
CROIX...WASHINGTON...RAMSEY AND NORTHWESTERN DAKOTA COUNTIES UNTIL
415 AM CDT...
AT 345 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SOMERSET TO BAYPORT TO ST PAUL...MOVING EAST AT 45
MPH.
LOCATIONS IMPACTED INCLUDE...
ST PAUL PARK...BURKHARDT...HUDSON...WOODBURY...HOULTON...
LAKELAND...BOARDMAN AND AFTON.
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 4529 9295 4510 9249 4486 9274 4476 9329
4479 9332 4481 9325 4489 9317 4491 9320
4501 9320 4512 9323 4513 9302 4529 9301
TIME...MOT...LOC 0850Z 289DEG 39KT 4515 9255 4500 9273
4494 9299
WIND...HAIL 60MPH 1.00IN
$$
JPC688
WWUS53 KMPX 030900
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
400 AM CDT TUE JUL 3 2012
MNC037-123-030914-
/O.CAN.KMPX.SV.W.0209.000000T0000Z-120703T0915Z/
DAKOTA MN-RAMSEY MN-
400 AM CDT TUE JUL 3 2012
...THE SEVERE THUNDERSTORM WARNING FOR RAMSEY AND NORTHWESTERN DAKOTA
COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA. THEREFORE...THE SEVERE THUNDERSTORM WARNING FOR RAMSEY
AND NORTHWESTERN DAKOTA COUNTIES HAS BEEN CANCELLED.
LAT...LON 4525 9285 4510 9249 4486 9274 4487 9277
4485 9278 4484 9281 4481 9300 4488 9301
4489 9298 4512 9298 4513 9302
TIME...MOT...LOC 0859Z 289DEG 39KT 4510 9242 4496 9261
4490 9287
$$
MNC163-WIC109-030915-
/O.CON.KMPX.SV.W.0209.000000T0000Z-120703T0915Z/
WASHINGTON MN-ST. CROIX WI-
400 AM CDT TUE JUL 3 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN ST.
CROIX AND WASHINGTON COUNTIES UNTIL 415 AM CDT...
AT 354 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEW RICHMOND TO HUDSON TO WOODBURY...MOVING EAST AT 45
MPH.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHEASTERN WASHINGTON AND SOUTHWESTERN ST.
CROIX COUNTIES.
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 4525 9285 4510 9249 4486 9274 4487 9277
4485 9278 4484 9281 4481 9300 4488 9301
4489 9298 4512 9298 4513 9302
TIME...MOT...LOC 0859Z 289DEG 39KT 4510 9242 4496 9261
4490 9287
WIND...HAIL 60MPH 1.00IN
$$
JPC719
WWUS53 KMPX 030910
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
410 AM CDT TUE JUL 3 2012
MNC163-WIC109-030926-
/O.EXP.KMPX.SV.W.0209.000000T0000Z-120703T0915Z/
WASHINGTON MN-ST. CROIX WI-
410 AM CDT TUE JUL 3 2012
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ST. CROIX AND
WASHINGTON COUNTIES WILL EXPIRE AT 415 AM CDT...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.
LAT...LON 4525 9285 4510 9249 4486 9274 4487 9277
4485 9278 4484 9281 4481 9300 4488 9301
4489 9298 4512 9298 4513 9302
TIME...MOT...LOC 0911Z 289DEG 39KT 4504 9225 4491 9244
4485 9270
$$
JPCThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 2:42 AM CDT | Special Weather Statement | MPX | Barron, Polk | 48 min |
| Jul 3, 3:20 AM CDT | Special Weather Statement | MPX | Chippewa, Dunn, Rusk | 40 min |
| Jul 3, 3:28 AM CDT | Severe Thunderstorm Warning | MPX | Barron, Chippewa, Dunn, Rusk | 47 min |
| Jul 3, 4:03 AM CDT | Special Weather Statement | MPX | Eau Claire, Pepin | 42 min |
| Jul 3, 12:12 AM CDT | Special Weather Statement | MPX | Todd | 48 min |
| Jul 3, 12:22 AM CDT | Severe Thunderstorm Warning | MPX | Todd | 38 min |
| Jul 3, 12:55 AM CDT | Severe Thunderstorm Warning | MPX | Mille Lacs, Morrison, Todd | 65 min |
| Jul 3, 1:46 AM CDT | Special Weather Statement | MPX | Redwood, Renville | 44 min |
| Jul 3, 2:02 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Mille Lacs, Morrison, Stearns | 28 min |
| Jul 3, 2:15 AM CDT | Tornado Warning | MPX | Sherburne | 30 min |
| Jul 3, 2:36 AM CDT | Special Weather Statement | MPX | Wright | 39 min |
| Jul 3, 2:53 AM CDT | Special Weather Statement | MPX | Hennepin | 37 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2012Severe Thunderstorm Warnings in Wisconsin, 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.