Alert archive / Iowa / Freezing Rain Advisories in 2009
Freezing Rain Advisory 2, NWS La Crosse, WI
NWS La Crosse, WI issued this freezing rain advisory at Dec 22, 2009, 7:57 PM CST for Crawford County, Grant County, Richland County, Wisconsin; 8 counties in Iowa. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Dec 22, 2009, 7:57 PM CST (01:57 UTC)
- Expired
- Dec 23, 2009, 3:00 PM CST
- In force
- 19 hr
- Issued by
- NWS La Crosse, WI
Counties Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Crawford County, WI, Grant County, WI, Richland County, WI
The radar
The La Crosse radar (KARX), 86 km from the middle of the area, began a volume at 01:54 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, 2.0 hours before the alert went out and 243 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
- 575 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freezing rain 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 freezing rain advisory went out at Dec 22, 3:20 PM CST, 4 hours 37 minutes earlier.
Area forecast discussion, Dec 22, 3:20 PM CST, 4 hours 37 minutes before
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</html>Hazardous weather outlook, Dec 22, 3:00 PM CST, 4 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LA CROSSE WI 300 PM CST TUE DEC 22 2009 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032>034-041>044- 053>055-061-231200- ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLAYTON-CRAWFORD-DODGE-FAYETTE- FILLMORE-FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE- MITCHELL-MONROE-MOWER-OLMSTED-RICHLAND-TREMPEALEAU-VERNON-WABASHA- WINNESHIEK-WINONA- 300 PM CST TUE DEC 22 2009 ...WINTER STORM IMPACTS THE AREA WEDNESDAY THROUGH FRIDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF SOUTHEAST MINNESOTA...NORTHEAST IOWA AND SOUTHWEST INTO CENTRAL WISCONSIN. .DAY ONE...TONIGHT SOME FREEZING DRIZZLE WILL BE POSSIBLE...MOSTLY SOUTH OF A LINE FROM WABASHA MINNESOTA...TOWARD WISCONSIN DELLS WISCONSIN. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A WINTER STORM WILL BEGIN TO AFFECT THE REGION ON WEDNESDAY AFTERNOON AND THEN CONTINUE THROUGH CHRISTMAS DAY. A WINTER STORM WATCH IS IN EFFECT WEDNESDAY AFTERNOON OR EVENING THROUGH FRIDAY...AS TRAVEL COULD BE SIGNIFICANTLY IMPACTED BY SNOW AND ICE ACCUMULATIONS. SNOW...FREEZING RAIN AND SLEET SHOULD BEGIN WEDNESDAY AFTERNOON ACROSS MUCH OF NORTHEAST IOWA AND ADJACENT PARTS OF SOUTHEAST MINNESOTA AND SOUTHWEST WISCONSIN...THEN CONTINUE THROUGH FRIDAY. PRECIPITATION WILL LIKELY TRANSITION BACK AND FORTH BETWEEN SNOW AND FREEZING RAIN DURING THIS TIME FRAME. THIS EXPECTED TRANSITION OF PRECIPITATION TYPE MAKES FORECASTING SNOW AND ICING AMOUNTS EXTREMELY DIFFICULT. HOWEVER...IT STILL APPEARS THERE WILL BE SIGNIFICANT SNOWFALL ACCUMULATIONS ALONG WITH SOME ICE ACCUMULATIONS. HIGHEST SNOWFALL AMOUNTS SHOULD OCCUR ALONG AND WEST OF A LINE FROM CHARLES CITY IOWA TO LA CROSSE TO NEILLSVILLE WISCONSIN. SOME ADDITIONAL SNOW ACCUMULATIONS WILL LIKELY CONTINUE INTO FRIDAY NIGHT AND POSSIBLY SATURDAY AS THIS WINTER STORM SLOWLY MOVES AWAY FROM THE REGION. .SPOTTER INFORMATION STATEMENT... REPORTS OF SNOW AND ICE ACCUMULATIONS WOULD BE GREATLY APPRECIATED... AS THE LARGE WINTER STORM MOVES THROUGH THE REGION FROM WEDNESDAY NIGHT THROUGH CHRISTMAS DAY. .EMERGENCY MANAGEMENT COORDINATION... A CONFERENCE CALL AND WEBINAR HAS BEEN SCHEDULED FOR 1 PM CST WEDNESDAY AFTERNOON. WIZ017-029-231200- CLARK-TAYLOR- 300 PM CST TUE DEC 22 2009 ...WINTER STORM IMPACTS THE AREA WEDNESDAY NIGHT THROUGH FRIDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF NORTH CENTRAL WISCONSIN. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A WINTER STORM WILL BEGIN TO AFFECT THE REGION ON WEDNESDAY AFTERNOON AND THEN CONTINUE THROUGH CHRISTMAS DAY. A WINTER STORM WATCH IS IN EFFECT FOR THE AREA WEDNESDAY NIGHT THROUGH FRIDAY...AS TRAVEL COULD BE SIGNIFICANTLY IMPACTED BY SNOW AND ICE ACCUMULATIONS. SNOW...FREEZING RAIN AND SLEET SHOULD BEGIN WEDNESDAY NIGHT ACROSS MUCH OF NORTH CENTRAL WISCONSIN...THEN CONTINUE THROUGH FRIDAY. PRECIPITATION WILL LIKELY TRANSITION BACK AND FORTH BETWEEN SNOW AND FREEZING RAIN DURING THIS TIME FRAME. THIS EXPECTED TRANSITION OF PRECIPITATION TYPE MAKES FORECASTING SNOW AND ICING AMOUNTS EXTREMELY DIFFICULT. HOWEVER...IT STILL APPEARS THERE WILL BE SIGNIFICANT SNOWFALL ACCUMULATIONS ALONG WITH SOME ICE ACCUMULATIONS. HIGHEST SNOWFALL AMOUNTS SHOULD OCCUR ALONG AND WEST OF A LINE FROM NEILLSVILLE TO MEDFORD WISCONSIN. SOME ADDITIONAL SNOW ACCUMULATIONS WILL LIKELY CONTINUE INTO FRIDAY NIGHT AND POSSIBLY SATURDAY AS THIS WINTER STORM SLOWLY MOVES AWAY FROM THE REGION. .SPOTTER INFORMATION STATEMENT... REPORTS OF SNOW AND ICE ACCUMULATIONS WOULD BE GREATLY APPRECIATED... AS THE LARGE WINTER STORM MOVES THROUGH THE REGION FROM WEDNESDAY NIGHT THROUGH CHRISTMAS DAY. .EMERGENCY MANAGEMENT COORDINATION... A CONFERENCE CALL AND WEBINAR HAS BEEN SCHEDULED FOR 1 PM CST WEDNESDAY AFTERNOON. THOMPSON
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 3:58 AM CST | Winter Storm Warning | ARX | Adams, Buffalo, Clark, Crawford, Grant, Jackson and 7 more | 48 hr |
Nearby
Freezing Rain Advisories in Iowa, 2009Freezing Rain Advisories in Wisconsin, 2009Every freezing rain advisory in 2009
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.