Alert archive / Wisconsin / Special Weather Statements in 2018

Special Weather Statement, NWS La Crosse, WI

May 28, 2018La Crosse County, Monroe County, Wisconsin

NWS La Crosse, WI issued this special weather statement at May 28, 2018, 6:47 AM CDT for La Crosse County, Monroe County, Wisconsin. It was in force for 58 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 28, 2018, 6:47 AM CDT (11:47 UTC)
Expired: May 28, 2018, 7:45 AM CDT
In force: 58 min
Issued by: NWS La Crosse, WI

Counties La Crosse County, WI, Monroe County, WI

The radar

The La Crosse radar (KARX), 26 km from the middle of the area, began a volume at 11:48 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 00:00Z, 11.8 hours before the alert went out and 217 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 800 J/kg
Mixed-layer CIN: -234 J/kg
Mixed-layer LCL: 2507 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 331 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 28, 2:19 AM CDT, 4 hours 28 minutes earlier.

Area forecast discussion, May 28, 2:19 AM CDT, 4 hours 28 minutes before

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Hazardous weather outlook, May 28, 5:45 AM CDT, 1 hour 2 minutes before

Hazardous Weather Outlook
National Weather Service La Crosse WI
545 AM CDT Mon May 28 2018

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-291100-
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-
545 AM CDT Mon May 28 2018

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

.DAY ONE...Today and Tonight

Heat indices around 100 are expected this afternoon.

Thunderstorms will be found this morning over portions of western
and central Wisconsin. More thunderstorms will be possible this
afternoon and evening generally along and north of Interstate 90.
Lightning and gusty winds will be the main threats.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

There will be periodic chances for thunderstorms from Tuesday
through Thursday evening and again Saturday night. The main
threats will be lightning and gusty winds.

.SPOTTER INFORMATION STATEMENT...

No action is needed.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

04/Boyne

In the hours before

Special weather statement, May 28, 5:54 AM CDT, 53 minutes before

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Special weather statement, May 28, 6:47 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 7:40 AM CDT	Special Weather Statement	ARX	Jackson	80 min
May 28, 6:11 PM CDT	Special Weather Statement	ARX	Mitchell	64 min
May 28, 6:32 PM CDT	Special Weather Statement	ARX	Dodge	58 min

Nearby

Special Weather Statements in Wisconsin, 2018 Every special weather statement in 2018

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.