Alert archive / Wisconsin / Special Weather Statements in 2017
Special Weather Statement, NWS La Crosse, WI
NWS La Crosse, WI issued this special weather statement at Jul 15, 2017, 6:25 PM CDT for Trempealeau County, Wisconsin. It was in force for 35 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 15, 2017, 6:25 PM CDT (23:25 UTC)
- Expired
- Jul 15, 2017, 7:00 PM CDT
- In force
- 35 min
- Issued by
- NWS La Crosse, WI
County Trempealeau County, WI
The radar
The La Crosse radar (KARX), 73 km from the middle of the area, began a volume at 23:25 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, 11.4 hours before the alert went out and 190 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
- 738 J/kg
- Mixed-layer CIN
- -358 J/kg
- Mixed-layer LCL
- 958 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 219 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS La Crosse, WI wrote its last area forecast discussion before this special weather statement went out at Jul 15, 2:57 PM CDT, 3 hours 28 minutes earlier.
Area forecast discussion, Jul 15, 2:57 PM CDT, 3 hours 28 minutes before
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</html>Hazardous weather outlook, Jul 15, 4:51 AM CDT, 13 hours 34 minutes before
Hazardous Weather Outlook National Weather Service La Crosse WI 451 AM CDT Sat Jul 15 2017 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-161100- Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- 451 AM CDT Sat Jul 15 2017 This Hazardous Weather Outlook is for portions of southeast Minnesota...northeast Iowa and southwest into central Wisconsin. .DAY ONE...Today and Tonight Scattered thunderstorms are possible, mainly between 4 and 10 PM. A few storms may be severe, with large hail, damaging winds and locally heavy rainfall the main threats. .DAYS TWO THROUGH SEVEN...Sunday through Friday Additional thunderstorms are possible at times from Tuesday through Friday, but it is too early to discern any severe weather threats during this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be requested late this afternoon and this evening. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled.
In the hours before
Special weather statement, Jul 15, 5:35 PM CDT, 50 minutes before
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</html>Special weather statement, Jul 15, 6:25 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service La Crosse WI
625 PM CDT SAT JUL 15 2017
WIZ033-160000-
Trempealeau-
625 PM CDT SAT JUL 15 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN TREMPEALEAU
COUNTY...
At 624 PM CDT, a strong thunderstorm was located 7 miles southeast of
Strum, or 8 miles north of Whitehall, moving southeast at 15 mph.
Winds in excess of 40 mph and half inch hail are possible with this
storm.
This storm will be near...
Whitehall around 645 PM CDT.
Other locations impacted by this storm include Pigeon Falls and
Pleasantville.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 4455 9128 4447 9116 4438 9117 4434 9131
4455 9137
TIME...MOT...LOC 2324Z 333DEG 14KT 4448 9128
HollanThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 5:35 PM CDT | Special Weather Statement | ARX | Trempealeau | 40 min |
Nearby
Special Weather Statements in Wisconsin, 2017Every special weather statement 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.