Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 244, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 21, 2016, 5:14 PM CDT for Polk County, Saint Croix County, Wisconsin. It was in force for 43 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
- Sep 21, 2016, 5:14 PM CDT (22:14 UTC)
- Expired
- Sep 21, 2016, 5:57 PM CDT
- In force
- 43 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Polk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 22:17 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, 10.2 hours before the alert went out and 103 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
- 515 J/kg
- Mixed-layer CIN
- -331 J/kg
- Mixed-layer LCL
- 738 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.5
The text
As transmitted.
228
WUUS53 KMPX 212214
SVRMPX
WIC095-109-212315-
/O.NEW.KMPX.SV.W.0244.160921T2214Z-160921T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
514 PM CDT WED SEP 21 2016
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN...
SOUTHEASTERN POLK COUNTY IN NORTHWESTERN WISCONSIN...
* UNTIL 615 PM CDT
* AT 513 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
SOMERSET...OR 20 MILES NORTH OF RIVER FALLS...MOVING EAST AT 30
MPH.
HAZARD...HALF DOLLAR SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
* THIS SEVERE THUNDERSTORM WILL BE NEAR...
NEW RICHMOND AROUND 525 PM CDT.
STAR PRAIRIE AROUND 530 PM CDT.
CLEAR LAKE AROUND 555 PM CDT.
CLAYTON AROUND 610 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
FOREST... EMERALD...BOARDMAN...DEER PARK...EAST
FARMINGTON...HUNTINGTON AND CYLON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4506 9268 4525 9276 4534 9216 4512 9215
4512 9213 4508 9213 4507 9214
TIME...MOT...LOC 2213Z 257DEG 24KT 4516 9267
HAIL...1.25IN
WIND...<50MPH
$$2 follow-up statements
005
WWUS53 KMPX 212236
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
536 PM CDT WED SEP 21 2016
WIC095-109-212315-
/O.CON.KMPX.SV.W.0244.000000T0000Z-160921T2315Z/
ST. CROIX WI-POLK WI-
536 PM CDT WED SEP 21 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR NORTHEASTERN ST. CROIX AND SOUTHEASTERN POLK COUNTIES...
AT 536 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR DEER PARK...OR
24 MILES NORTH OF RIVER FALLS...MOVING EAST AT 30 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
THIS SEVERE STORM WILL BE NEAR...
AMERY AROUND 550 PM CDT.
CLEAR LAKE AROUND 555 PM CDT.
CLAYTON AROUND 610 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
FOREST... EMERALD...CYLON AND DEER PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4506 9247 4528 9257 4534 9216 4512 9215
4512 9213 4508 9213 4507 9214
TIME...MOT...LOC 2236Z 257DEG 24KT 4519 9246
HAIL...1.00IN
WIND...<50MPH
$$613
WWUS53 KMPX 212257
SVSMPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
557 PM CDT WED SEP 21 2016
WIC095-109-212306-
/O.CAN.KMPX.SV.W.0244.000000T0000Z-160921T2315Z/
ST. CROIX WI-POLK WI-
557 PM CDT WED SEP 21 2016
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ST. CROIX AND
SOUTHEASTERN POLK COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS. THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER A LINE OF
STORMS APPROACHING FROM THE WEST WILL HAVE WIND GUSTS TO 35 MPH
ALONG WITH VERY HEAVY RAINFALL.
LAT...LON 4506 9247 4528 9257 4534 9216 4512 9215
4512 9213 4508 9213 4507 9214
TIME...MOT...LOC 2254Z 257DEG 24KT 4522 9227
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 7:49 PM CDT | Special Weather Statement | MPX | Eau Claire | 26 min |
| Sep 20, 11:47 PM CDT | Special Weather Statement | MPX | Pepin | 43 min |
| Sep 21, 1:06 PM CDT | Special Weather Statement | MPX | Chippewa | 24 min |
| Sep 21, 1:47 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 28 min |
| Sep 21, 1:56 PM CDT | Special Weather Statement | MPX | Eau Claire | 49 min |
| Sep 21, 2:07 PM CDT | Severe Thunderstorm Warning | MPX | Eau Claire | 38 min |
| Sep 21, 3:19 PM CDT | Special Weather Statement | MPX | Eau Claire | 56 min |
| Sep 21, 3:56 PM CDT | Special Weather Statement | MPX | Chippewa, Dunn | 64 min |
| Sep 21, 4:42 PM CDT | Severe Thunderstorm Warning | MPX | Polk, Saint Croix | 33 min |
| Sep 21, 4:51 PM CDT | Severe Thunderstorm Warning | MPX | Dunn | 39 min |
| Sep 21, 5:11 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Dunn, Eau Claire | 49 min |
| Sep 21, 5:39 PM CDT | Special Weather Statement | MPX | Eau Claire | 96 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2016Every severe thunderstorm warning in 2016
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.