Alert archive / Wisconsin / Tornado Warnings in 2009
Tornado Warning 46, NWS Twin Cities, MN
NWS Twin Cities, MN issued this tornado warning at Aug 19, 2009, 4:14 PM CDT for Barron County, Polk County, Wisconsin. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2009, 4:14 PM CDT (21:14 UTC)
- Expired
- Aug 19, 2009, 5:00 PM CDT
- In force
- 46 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
Counties Barron County, WI, Polk County, WI
The radar
The Minneapolis radar (KMPX), 115 km from the middle of the area, began a volume at 21:16 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.2 hours before the alert went out and 117 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
- 368 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KMPX 192114
TORMPX
WIC005-095-192200-
/O.NEW.KMPX.TO.W.0046.090819T2114Z-090819T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
414 PM CDT WED AUG 19 2009
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* TORNADO WARNING FOR...
POLK COUNTY IN NORTHWEST WISCONSIN...
WESTERN BARRON COUNTY IN NORTHWEST WISCONSIN...
* UNTIL 500 PM CDT
* AT 414 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS 2 MILES NORTHWEST
OF CLEAR LAKE...AND MOVING NORTH AT 30 MPH.
* LOCATIONS IN THE WARNING INCLUDE...
AMERY...
BALSAM LAKE...
DERONDA...
DRESSER...
PRAIRIE FARM...
ST CROIX FALLS...
CENTURIA...
RANGE...
TURTLE LAKE...
MILLTOWN...
BARRON...
LUCK...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT
STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY
BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 4551 9174 4521 9198 4522 9235 4536 9268
4539 9267 4540 9264 4545 9266 4565 9261
TIME...MOT...LOC 2114Z 200DEG 25KT 4526 9231
$$1 follow-up statement
000
WWUS53 KMPX 192130
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
430 PM CDT WED AUG 19 2009
WIC005-095-192200-
/O.CON.KMPX.TO.W.0046.000000T0000Z-090819T2200Z/
POLK WI-BARRON WI-
430 PM CDT WED AUG 19 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR WESTERN
BARRON AND POLK COUNTIES...
AT 430 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PART OF THE STORM
WAS LOCATED NEAR JOEL...OR ABOUT 3 MILES SOUTHEAST OF RANGE...AND
MOVING NORTH AT 30 MPH.
LOCATIONS IN THE WARNING INCLUDE...
BALSAM LAKE...RANGE...TURTLE LAKE...MILLTOWN...BARRON...LUCK...
COMSTOCK...MCKINLEY...CUMBERLAND AND ALMENA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT
STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY
BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 4551 9174 4521 9198 4523 9235 4543 9244
4547 9265 4565 9261
TIME...MOT...LOC 2130Z 200DEG 25KT 4536 9225
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 2:43 PM CDT | Tornado Warning | MPX | Pierce | 32 min |
| Aug 19, 2:53 PM CDT | Tornado Warning | MPX | Saint Croix | 22 min |
| Aug 19, 2:57 PM CDT | Tornado Warning | MPX | Pierce, Saint Croix | 48 min |
| Aug 19, 3:16 PM CDT | Tornado Warning | MPX | Polk, Saint Croix | 29 min |
| Aug 19, 4:04 PM CDT | Tornado Warning | MPX | Dunn, Saint Croix | 26 min |
| Aug 19, 4:06 PM CDT | Tornado Warning | MPX | Pierce, Saint Croix | 39 min |
| Aug 19, 4:21 PM CDT | Tornado Warning | MPX | Polk | 39 min |
| Aug 19, 4:33 PM CDT | Tornado Warning | MPX | Saint Croix | 27 min |
| Aug 19, 4:43 PM CDT | Tornado Warning | MPX | Dunn, Pierce, Saint Croix | 47 min |
| Aug 19, 5:13 PM CDT | Tornado Warning | MPX | Barron, Dunn, Polk, Saint Croix | 47 min |
Nearby
Tornado Warnings in Wisconsin, 2009Every tornado warning in 2009Tornadoes in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.