Alert archive / Wisconsin / Winter Weather Advisories in 2011
Winter Weather Advisory 13, NWS Milwaukee, WI
NWS Milwaukee, WI issued this winter weather advisory at Apr 18, 2011, 9:45 PM CDT for 4 counties in Wisconsin. It took effect at Apr 19, 2011, 11:49 AM CDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Apr 18, 2011, 9:45 PM CDT (02:45 UTC)
- In effect from
- Apr 19, 2011, 11:49 AM CDT
- Expired
- Apr 19, 2011, 9:41 PM CDT
- In force
- 10 hr
- Issued by
- NWS Milwaukee, WI
Counties Columbia County, WI, Dodge County, WI, Sauk County, WI, Sheboygan County, WI
The radar
The Milwaukee radar (KMKX), 69 km from the middle of the area, began a volume at 02:46 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, 2.8 hours before the alert went out and 246 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
- 641 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- 152 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 Milwaukee, WI wrote its last area forecast discussion before this winter weather advisory went out at Apr 18, 3:20 PM CDT, 6 hours 25 minutes earlier.
Area forecast discussion, Apr 18, 3:20 PM CDT, 6 hours 25 minutes before
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</html>Hazardous weather outlook, Apr 18, 2:56 PM CDT, 6 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 256 PM CDT MON APR 18 2011 WIZ046-047-051-052-056>060-062>072-192000- MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE- WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE- LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA- 256 PM CDT MON APR 18 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN. .DAY ONE...TONIGHT A MIXTURE OF LIGHT RAIN...SLEET AND SNOW IS LIKELY LATE TONIGHT...MAINLY ALONG AND SOUTH OF A LINE FROM MILWAUKEE TO MADISON. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH MONDAY THERE IS A CHANCE OF THUNDERSTORMS TUESDAY AFTERNOON AND TUESDAY EVENING AS A STRONG LOW PRESSURE SYSTEM TRACKS OUT OF THE KANSAS OKLAHOMA AREA TONIGHT AND INTO LOWER MICHIGAN BY WEDNESDAY MORNING. THIS SYSTEM WILL BRING A MESSY MIXTURE OF RAIN...SLEET AND SNOW TO THE AREA TUESDAY AND TUESDAY NIGHT. SNOW AND SLEET MAY ACCUMULATE TO AROUND 6 INCHES IN THE REEDSBURG...PORTAGE...MONTELLO AND GREEN LAKE AREAS BY WEDNESDAY MORNING. A WINTER STORM WATCH HAS BEEN ISSUED FOR THIS AREA. WINTER WEATHER ADVISORIES MAY BE ISSUED EAST OF THE WATCH AREA DUE TO THE MIXTURE OF PRECIPITATION EXPECTED. YET ANOTHER LOW MAY MOVE ACROSS THE CENTRAL PLAINS FRIDAY MORNING TOWARDS LOWER MICHIGAN LATE FRIDAY NIGHT..BRINGING A CHANCE OF THUNDERSTORMS ON FRIDAY. MORE THUNDERSTORMS ARE POSSIBLE NEXT MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED THIS WEEK HOWEVER SNOWFALL REPORTS ARE APPRECIATED. LMZ643>646-192000- SHEBOYGAN TO PORT WASHINGTON WI- PORT WASHINGTON TO NORTH POINT LIGHT WI- NORTH POINT LIGHT TO WIND POINT WI- WIND POINT WI TO WINTHROP HARBOR IL- 256 PM CDT MON APR 18 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN. .DAY ONE...TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH MONDAY A STRONG LOW PRESSURE SYSTEM WILL AFFECT LAKE MICHIGAN FROM TUESDAY THROUGH WEDNESDAY....RESULTING IN BRISK WINDS AND HIGH WAVES. A SMALL CRAFT ADVISORY HAS BEEN POSTED FROM 7 AM CDT TUESDAY THROUGH WEDNESDAY EVENING. THERE IS ALSO A CHANCE OF THUNDERSTORMS TUESDAY AFTERNOON AND EVENING. YET ANOTHER LOW MAY MOVE ACROSS THE CENTRAL PLAINS FRIDAY TOWARDS LOWER MICHIGAN BY LATE FRIDAY NIGHT..BRINGING A CHANCE OF THUNDERSTORMS ON FRIDAY...ALONG WITH THE POSSIBILITY OF SMALL CRAFT ADVISORIES. WWW.WEATHER.GOV/MKX MBK
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 9:45 PM CDT | Winter Storm Warning | MKX | Fond du Lac, Green Lake, Marquette | 24 hr |
| Apr 19, 4:46 AM CDT | Gale Warning | MKX | 16 hr |
Nearby
Winter Weather Advisories in Wisconsin, 2011Every winter weather advisory in 2011
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.