Alert archive / Wisconsin / Special Weather Statements in 2017

Special Weather Statement, NWS La Crosse, WI

May 16, 2017Clark County, Jackson County, Wisconsin

NWS La Crosse, WI issued this special weather statement at May 16, 2017, 1:12 PM CDT for Clark County, Jackson County, Wisconsin. It was in force for 63 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
May 16, 2017, 1:12 PM CDT (18:12 UTC)
Expired
May 16, 2017, 2:15 PM CDT
In force
63 min
Issued by
NWS La Crosse, WI

Counties Clark County, WI, Jackson County, WI

The radar

The La Crosse radar (KARX), 125 km from the middle of the area, began a volume at 18:14 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.2 hours before the alert went out and 191 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2017-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2017-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1146 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 May 16, 12:26 PM CDT, 46 minutes earlier.

Area forecast discussion, May 16, 12:26 PM CDT, 46 minutes before
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Hazardous weather outlook, May 16, 5:02 AM CDT, 8 hours 10 minutes before
Hazardous Weather Outlook
National Weather Service La Crosse WI
502 AM CDT Tue May 16 2017

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-171200-
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-
502 AM CDT Tue May 16 2017

This Hazardous Weather Outlook is for portions of northeast
Iowa, southeast Minnesota, and southwest into central Wisconsin.

.DAY ONE...Today and Tonight

Some thunderstorms will linger this morning, mainly north and east
of La Crosse. The main threats from any of these storms are brief
heavy rains and lightning.

Thunderstorms are expected to spread back into the area tonight. A
few of these could be strong to severe in areas west and north of
La Crosse. The main threats would be large hail, damaging winds,
locally heavy rains, and lightning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Thunderstorm chances continue Wednesday into Wednesday evening. A
few storms Wednesday afternoon and evening could be strong and
produce small hail and gusty winds. Locally heavy rains remain
possible as well.

Another round of widespread rain looks to spread across the area
Friday into Saturday night, with amounts of 3/4 inch to locally 2
inches appearing likely.

.SPOTTER INFORMATION STATEMENT...

Rainfall and any localized flooding or high water reports would
be appreciated this morning.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

RRS/LAWRENCE

In the hours before

Local storm report, May 16, 11:28 AM CDT, 1 hour 44 minutes before
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Local storm report, May 16, 11:42 AM CDT, 1 hour 30 minutes before
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Local storm report, May 16, 12:13 PM CDT, 59 minutes before
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Special weather statement, May 16, 12:15 PM CDT, 57 minutes before
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Special weather statement, May 16, 12:46 PM CDT, 26 minutes before
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Special weather statement, May 16, 1:12 PM CDT, 0 minutes before
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The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 15, 7:25 PM CDTSpecial Weather StatementARXGrant35 min
May 15, 7:27 PM CDTSevere Thunderstorm WarningARXCrawford, Grant48 min
May 15, 7:58 PM CDTSpecial Weather StatementARXMonroe32 min
May 15, 8:14 PM CDTSevere Thunderstorm WarningARXGrant29 min
May 15, 11:15 PM CDTSpecial Weather StatementARXLa Crosse45 min
May 15, 11:44 PM CDTAreal Flood AdvisoryARXLa Crosse3 hr
May 16, 12:15 PM CDTSpecial Weather StatementARXBuffalo30 min
May 16, 12:46 PM CDTSpecial Weather StatementARXTrempealeau74 min
May 16, 3:06 PM CDTFlash Flood WatchARXBuffalo, Trempealeau13 hr
May 16, 4:17 PM CDTSpecial Weather StatementARXBuffalo, Trempealeau58 min
May 16, 6:42 PM CDTSevere Thunderstorm WarningARXTaylor78 min
May 15, 7:09 PM CDTSevere Thunderstorm WarningARXClayton51 min
May 15, 10:08 PM CDTSevere Thunderstorm WarningARXFillmore, Houston, Winona67 min
May 15, 10:17 PM CDTSevere Thunderstorm WarningARXDodge23 min
May 15, 10:25 PM CDTSevere Thunderstorm WarningARXOlmsted, Wabasha, Winona41 min
May 15, 11:16 PM CDTSpecial Weather StatementARXHouston44 min
May 15, 11:19 PM CDTSpecial Weather StatementARXWinona56 min
May 15, 11:30 PM CDTSevere Thunderstorm WarningARXDodge33 min
May 15, 11:49 PM CDTAreal Flood AdvisoryARXOlmsted, Wabasha, Winona3 hr
May 16, 12:12 AM CDTFlash Flood WarningARXOlmsted, Wabasha, Winona7 hr
May 16, 12:18 AM CDTRiver Flood WarningARXOlmsted, Winona22 hr
May 16, 6:58 AM CDTAreal Flood WarningARXHouston, Olmsted, Wabasha, Winona9 hr
May 16, 3:54 PM CDTSpecial Weather StatementARXWabasha51 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.