Alert archive / Iowa / Winter Weather Advisories in 2012
Winter Weather Advisory 5, NWS La Crosse, WI
NWS La Crosse, WI issued this winter weather advisory at Feb 23, 2012, 6:30 PM CST for Grant County, Wisconsin; Clayton County, Fayette County, Iowa. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Feb 23, 2012, 6:30 PM CST (00:30 UTC)
- Expired
- Feb 24, 2012, 6:00 AM CST
- In force
- 12 hr
- Issued by
- NWS La Crosse, WI
Counties Clayton County, IA, Fayette County, IA, Grant County, WI
The radar
The La Crosse radar (KARX), 108 km from the middle of the area, began a volume at 00:30 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
Davenport, (KDVN), launched 00:00Z, 0.5 hours before the alert went out and 153 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 484 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 697 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory 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 winter weather advisory went out at Feb 23, 5:43 PM CST, 47 minutes earlier.
Area forecast discussion, Feb 23, 5:43 PM CST, 47 minutes before
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</html>Hazardous weather outlook, Feb 23, 4:08 AM CST, 14 hours 22 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LA CROSSE WI 408 AM CST THU FEB 23 2012 IAZ008>011-018-019-029-030-WIZ054-061-241200- ALLAMAKEE-CHICKASAW-CLAYTON-CRAWFORD-FAYETTE-FLOYD-GRANT-HOWARD- MITCHELL-WINNESHIEK- 408 AM CST THU FEB 23 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF NORTHEAST IOWA AND SOUTHWEST WISCONSIN. .DAY ONE...TODAY AND TONIGHT A WINTER STORM WILL MOVE ACROSS IOWA AND ILLINOIS TODAY AND TONIGHT. ALTHOUGH THE HEAVIEST SNOW IS EXPECTED TO BE SOUTH OF THE AREA... ACCUMULATIONS OF 1 TO 3 INCHES ARE LIKELY FROM THIS AFTERNOON THROUGH TONIGHT. THE HIGHEST TOTALS WILL GENERALLY BE SOUTH OF A CHARLES CITY IOWA...TO PLATTEVILLE WISCONSIN LINE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ANOTHER STORM IS EXPECTED TO IMPACT THE AREA SUNDAY AND MONDAY...BUT THE HEAVIEST SNOW IS EXPECTED TO BE NORTH OF THE AREA. ANOTHER STRONG STORM LOOKS TO MOVE ACROSS THE REGION IN THE TUESDAY THROUGH WEDNESDAY TIME FRAME. THIS WILL HAVE THE POTENTIAL TO BRING ACCUMULATING SNOW TO THE AREA. HOWEVER...ITS TOO EARLY TO DISCERN AMOUNTS OR PRECIPITATION TYPE. .SPOTTER INFORMATION STATEMENT... SNOWFALL AMOUNTS TODAY AND TONIGHT WILL BE APPRECIATED. .EMERGENCY MANAGEMENT COORDINATION... NO WEBINAR IS SCHEDULED. MNZ079-086>088-094>096-WIZ017-029-032>034-041>044-053-055-241200- ADAMS-BUFFALO-CLARK-DODGE-FILLMORE-HOUSTON-JACKSON-JUNEAU-LA CROSSE- MONROE-MOWER-OLMSTED-RICHLAND-TAYLOR-TREMPEALEAU-VERNON-WABASHA- WINONA- 408 AM CST THU FEB 23 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF SOUTHEAST MINNESOTA AND SOUTHWEST INTO CENTRAL WISCONSIN. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ANOTHER STORM IS EXPECTED TO IMPACT THE AREA SUNDAY AND MONDAY...BUT THE HEAVIEST SNOW IS EXPECTED TO BE NORTH OF THE AREA. ANOTHER STRONG STORM LOOKS TO MOVE ACROSS THE REGION IN THE TUESDAY WEDNESDAY TIME FRAME. THIS WILL HAVE THE POTENTIAL TO BRING ACCUMULATING SNOW TO THE AREA. HOWEVER...ITS TOO EARLY TO DISCERN AMOUNTS OR PRECIPITATION TYPE. .SPOTTER INFORMATION STATEMENT... NO ACTION IS NEEDED. .EMERGENCY MANAGEMENT COORDINATION... NO WEBINAR IS SCHEDULED. RABERDING
In the hours before
Local storm report, Feb 23, 5:37 PM CST, 53 minutes before
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</html>Nearby
Winter Weather Advisories in Iowa, 2012Winter Weather Advisories in Wisconsin, 2012Every winter weather advisory in 2012
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.