Alert archive / Wisconsin / Special Weather Statements in 2011
Special Weather Statement, NWS Twin Cities, MN
NWS Twin Cities, MN issued this special weather statement at Aug 23, 2011, 4:50 PM CDT for Eau Claire County, Wisconsin. It was in force for 25 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
- Aug 23, 2011, 4:50 PM CDT (21:50 UTC)
- Expired
- Aug 23, 2011, 5:15 PM CDT
- In force
- 25 min
- Issued by
- NWS Twin Cities, MN
County Eau Claire County, WI
The radar
The La Crosse radar (KARX), 95 km from the middle of the area, began a volume at 21:53 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 12:00Z, 9.8 hours before the alert went out and 210 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
- 105 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1908 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -93 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 Twin Cities, MN wrote its last area forecast discussion before this special weather statement went out at Aug 23, 3:51 PM CDT, 59 minutes earlier.
Area forecast discussion, Aug 23, 3:51 PM CDT, 59 minutes before
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HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1125 AM CDT TUE AUG 23 2011 MNZ042>045-049>070-073>078-082>085-091>093-WIZ014>016-023>028- 241100- TODD-MORRISON-MILLE LACS-KANABEC-STEARNS-BENTON-SHERBURNE-ISANTI- CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-MEEKER-WRIGHT- HENNEPIN-ANOKA-RAMSEY-WASHINGTON-YELLOW MEDICINE-RENVILLE-MCLEOD- SIBLEY-CARVER-SCOTT-DAKOTA-REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE- GOODHUE-WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT- FREEBORN-POLK-BARRON-RUSK-ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE- 1125 AM CDT TUE AUG 23 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA... AND WEST CENTRAL WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF WEST CENTRAL WISCONSIN THIS AFTERNOON. THE PRIMARY THREAT WILL BE LARGE HAIL. VERY HEAVY RAIN AND STRONG GUSTY WINDS NEAR 50 MILES AN HOUR ARE ALSO POSSIBLE WITH SOME OF THESE STORMS. THE COMBINATION OF WARM TEMPERATURES AND MOISTURE WILL CREATE HEAT INDEX VALUES NEAR 100 DEGREES THIS AFTERNOON ACROSS SOUTHWEST AND SOUTH CENTRAL MINNESOTA. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY BRISK NORTHWEST WINDS OF 30 TO 40 MPH ARE LIKELY DURING THE DAY ON WEDNESDAY. THUNDERSTORMS ARE POSSIBLE AGAIN ON FRIDAY AFTERNOON AND NIGHT WITH ANOTHER COLD FRONT. AT THIS TIME...WIDESPREAD SEVERE WEATHER IS NOT FAVORED. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MAY BE NEEDED OVER PORTIONS OF WEST CENTRAL WISCONSIN THIS AFTERNOON. MNZ041-047-048-241100- DOUGLAS-STEVENS-POPE- 1125 AM CDT TUE AUG 23 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL MINNESOTA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY BRISK NORTHWEST WINDS OF 30 TO 40 MILES AN HOUR ARE LIKELY DURING THE DAY ON WEDNESDAY. THUNDERSTORMS ARE POSSIBLE AGAIN ON FRIDAY AFTERNOON AND NIGHT WITH ANOTHER COLD FRONT. AT THIS TIME...WIDESPREAD SEVERE WEATHER IS NOT FAVORED. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT.
In the hours before
Local storm report, Aug 23, 3:13 PM CDT, 1 hour 37 minutes before
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</html>Local storm report, Aug 23, 4:19 PM CDT, 31 minutes before
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</html>Special weather statement, Aug 23, 4:50 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 12:08 AM CDT | Special Weather Statement | MPX | Martin, Watonwan | 52 min |
| Aug 23, 12:44 AM CDT | Special Weather Statement | MPX | Redwood | 46 min |
| Aug 23, 1:24 AM CDT | Special Weather Statement | MPX | Renville | 51 min |
| Aug 23, 2:01 AM CDT | Special Weather Statement | MPX | Nicollet | 44 min |
| Aug 23, 2:04 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Brown, Nicollet | 26 min |
| Aug 23, 2:13 AM CDT | Special Weather Statement | MPX | Douglas, Stevens | 62 min |
| Aug 23, 2:24 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stevens, Todd | 66 min |
| Aug 23, 2:30 AM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Nicollet, Rice, Sibley | 45 min |
| Aug 23, 2:51 AM CDT | Special Weather Statement | MPX | Freeborn | 39 min |
| Aug 23, 2:55 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stearns, Stevens, Swift, Todd | 65 min |
| Aug 23, 2:57 AM CDT | Special Weather Statement | MPX | Carver | 48 min |
| Aug 23, 3:08 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Swift | 67 min |
| Aug 23, 3:12 AM CDT | Severe Thunderstorm Warning | MPX | Scott | 33 min |
| Aug 23, 3:38 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Lac qui Parle, Meeker, Pope, Stearns and 2 more | 56 min |
| Aug 23, 3:40 AM CDT | Special Weather Statement | MPX | Dakota | 50 min |
| Aug 23, 4:04 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, McLeod, Meeker, Renville, Stearns, Yellow Medicine | 56 min |
| Aug 23, 4:28 AM CDT | Special Weather Statement | MPX | Benton, Isanti, McLeod, Renville, Sherburne, Wright | 47 min |
| Aug 23, 5:12 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Carver, Hennepin, Wright | 46 min |
| Aug 23, 5:30 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Dakota, Ramsey | 46 min |
| Aug 23, 5:52 AM CDT | Special Weather Statement | MPX | Washington | 38 min |
| Aug 23, 6:12 AM CDT | Severe Thunderstorm Warning | MPX | Faribault | 33 min |
| Aug 23, 6:42 AM CDT | Special Weather Statement | MPX | Freeborn | 33 min |
| Aug 23, 1:34 PM CDT | Special Weather Statement | MPX | Chippewa, Rusk | 56 min |
| Aug 23, 2:38 PM CDT | Special Weather Statement | MPX | Rusk | 52 min |
| Aug 23, 3:17 PM CDT | Special Weather Statement | MPX | Chippewa | 43 min |
| Aug 23, 3:39 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 36 min |
Nearby
Special Weather Statements in Wisconsin, 2011Every special weather statement 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.