Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 18, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 15, 2017, 8:01 PM CDT for Pierce County, Wisconsin. It was in force for 32 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
- Apr 15, 2017, 8:01 PM CDT (01:01 UTC)
- Expired
- Apr 15, 2017, 8:33 PM CDT
- In force
- 32 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Pierce County, WI
The radar
The Minneapolis radar (KMPX), 71 km from the middle of the area, began a volume at 01:00 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 |
|---|---|---|---|
| Apr 15, 8:15 PM CDT | HAIL 1 | 6 S River Falls, WI | |
| Apr 15, 8:20 PM CDT | HAIL 0.75 | 5 Nw Ellsworth, WI |
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, 1.0 hours before the alert went out and 74 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
- 174 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 938 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.9
The text
As transmitted.
278 WUUS53 KMPX 160101 SVRMPX WIC093-160145- /O.NEW.KMPX.SV.W.0018.170416T0101Z-170416T0145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Twin Cities/Chanhassen MN 801 PM CDT SAT APR 15 2017 The National Weather Service in The Twin Cities has issued a * Severe Thunderstorm Warning for... Northwestern Pierce County in west central Wisconsin... * Until 845 PM CDT * At 801 PM CDT, a severe thunderstorm was located near Prescott, or 7 miles southwest of River Falls, moving east at 30 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * This severe thunderstorm will be near, River Falls around 815 PM CDT. Ellsworth around 830 PM CDT. Other locations impacted by this severe thunderstorm include Beldenville. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4477 9280 4486 9276 4486 9247 4471 9250 TIME...MOT...LOC 0101Z 271DEG 24KT 4480 9275 HAIL...1.00IN WIND...<50MPH $$ BORGHOFF
2 follow-up statements
723
WWUS53 KMPX 160114
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
814 PM CDT SAT APR 15 2017
WIC093-160145-
/O.CON.KMPX.SV.W.0018.000000T0000Z-170416T0145Z/
Pierce WI-
814 PM CDT SAT APR 15 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHWESTERN PIERCE COUNTY...
At 814 PM CDT, a severe thunderstorm was located near River Falls,
moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Ellsworth around 825 PM CDT.
Other locations impacted by this severe thunderstorm include
Beldenville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4476 9273 4486 9267 4486 9247 4471 9250
TIME...MOT...LOC 0114Z 276DEG 27KT 4479 9262
HAIL...1.00IN
WIND...60MPH
$$
BORGHOFF812
WWUS53 KMPX 160133
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
833 PM CDT SAT APR 15 2017
WIC093-160143-
/O.CAN.KMPX.SV.W.0018.000000T0000Z-170416T0145Z/
Pierce WI-
833 PM CDT SAT APR 15 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN PIERCE COUNTY IS
CANCELLED...
The storm which prompted the warning has moved into northeastern
Pierce county. Therefore the warning has been cancelled.
LAT...LON 4476 9273 4486 9267 4486 9247 4471 9250
TIME...MOT...LOC 0132Z 271DEG 24KT 4479 9244
$$
BORGHOFFThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 7:59 PM CDT | Special Weather Statement | MPX | Polk | 31 min |
| Apr 15, 8:24 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 35 min |
| Apr 15, 8:42 PM CDT | Special Weather Statement | MPX | Dunn | 33 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2017Every severe thunderstorm warning in 2017
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.