Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 154, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 12, 2017, 3:51 AM CDT for Chippewa County, Eau Claire County, Wisconsin. It was in force for 24 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
- Jul 12, 2017, 3:51 AM CDT (08:51 UTC)
- Expired
- Jul 12, 2017, 4:15 AM CDT
- In force
- 24 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Chippewa County, WI, Eau Claire County, WI
The radar
The La Crosse radar (KARX), 114 km from the middle of the area, began a volume at 08:50 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 11, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 8.9 hours before the alert went out and 183 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
- 913 J/kg
- Mixed-layer CIN
- -179 J/kg
- Mixed-layer LCL
- 1279 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.0
The text
As transmitted.
590
WUUS53 KMPX 120851
SVRMPX
WIC017-035-120915-
/O.NEW.KMPX.SV.W.0154.170712T0851Z-170712T0915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
351 AM CDT WED JUL 12 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Southeastern Chippewa County in west central Wisconsin...
Eau Claire County in west central Wisconsin...
* Until 415 AM CDT
* At 351 AM CDT, severe thunderstorms were located along a line
extending from near Jim Falls to near Bateman to near Seymour to 6
miles southeast of Rock Falls, moving east at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near,
Cornell, Cadott and Fall Creek around 355 AM CDT.
Boyd around 400 AM CDT.
Stanley around 405 AM CDT.
Augusta around 415 AM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a DANGEROUS SITUATION. These storms have a history of
producing widespread wind damage. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
&&
LAT...LON 4460 9165 4494 9128 4515 9123 4517 9092
4460 9092
TIME...MOT...LOC 0851Z 270DEG 53KT 4508 9119 4496 9122 4483 9135 4467
9158
HAIL...<.75IN
WIND...60MPH
$$
BORGHOFF1 follow-up statement
503
WWUS53 KMPX 120913
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
413 AM CDT WED JUL 12 2017
WIC017-035-120923-
/O.EXP.KMPX.SV.W.0154.000000T0000Z-170712T0915Z/
Chippewa WI-Eau Claire WI-
413 AM CDT WED JUL 12 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHIPPEWA AND EAU
CLAIRE COUNTIES WILL EXPIRE AT 415 AM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.
A severe thunderstorm watch remains in effect until 600 AM CDT for
west central Wisconsin.
LAT...LON 4460 9165 4494 9128 4515 9123 4517 9092
4460 9092
TIME...MOT...LOC 0913Z 270DEG 53KT 4508 9119 4496 9122 4483 9135 4467
9158
$$
BORGHOFFThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 2:48 AM CDT | Severe Thunderstorm Warning | MPX | Pierce, Polk, Saint Croix | 27 min |
| Jul 12, 3:17 AM CDT | Severe Thunderstorm Warning | MPX | Barron, Polk | 43 min |
| Jul 12, 3:25 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Dunn, Eau Claire | 35 min |
| Jul 12, 3:41 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Rusk | 38 min |
| Jul 12, 4:32 PM CDT | Special Weather Statement | MPX | Eau Claire | 28 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.