Alert archive / Wisconsin / Special Weather Statements in 2014

Special Weather Statement, NWS Twin Cities, MN

August 25, 2014Eau Claire County, Wisconsin

NWS Twin Cities, MN issued this special weather statement at Aug 25, 2014, 1:17 AM CDT for Eau Claire County, Wisconsin. It was in force for 43 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 25, 2014, 1:17 AM CDT (06:17 UTC)
Expired: Aug 25, 2014, 2:00 AM CDT
In force: 43 min
Issued by: NWS Twin Cities, MN

County Eau Claire County, WI

The radar

The La Crosse radar (KARX), 110 km from the middle of the area, began a volume at 06:16 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, 6.3 hours before the alert went out and 203 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: 2425 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1141 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 14.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Twin Cities, MN wrote its last area forecast discussion before this special weather statement went out at Aug 25, 12:27 AM CDT, 50 minutes earlier.

Area forecast discussion, Aug 25, 12:27 AM CDT, 50 minutes before

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Hazardous weather outlook, Aug 24, 12:44 PM CDT, 12 hours 33 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1244 PM CDT SUN AUG 24 2014

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
251745-
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-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-
1244 PM CDT SUN AUG 24 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND
SOUTHERN MINNESOTA... AND WEST CENTRAL WISCONSIN.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED FROM MID AFTERNOON INTO THIS
EVENING. A FEW SEVERE STORMS ARE POSSIBLE...MAINLY BETWEEN 3 PM
AND 10 PM NORTH OF A LINE FROM WILMAR TO NEW RICHMOND. THE PRIMARY
SEVERE WEATHER THREATS WILL BE LARGE HAIL AND DAMAGING WIND
GUSTS...ALTHOUGH THE STRONGEST STORMS COULD BE CAPABLE OF
PRODUCING A TORNADO.

HEAT INDICES WILL TOP OUT BETWEEN 90 AND 100 THIS AFTERNOON INTO
EARLY EVENING ACROSS PORTIONS OF EAST CENTRAL AND SOUTH CENTRAL
MINNESOTA AS WELL AS WEST CENTRAL WISCONSIN.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE OF THUNDERSTORMS FOR MUCH OF THE WEEK... MAINLY
ALONG AND SOUTH OF THE MINNESOTA RIVER VALLEY. WIDESPREAD SEVERE
WEATHER IS NOT EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED MAY BE NEEDED THIS AFTERNOON AND
EVENING.

In the hours before

Special weather statement, Aug 24, 9:30 PM CDT, 3 hours 47 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
930 PM CDT SUN AUG 24 2014

MNZ053-061-063-250300-
ANOKA-CHISAGO-WASHINGTON-
930 PM CDT SUN AUG 24 2014

...LINE OF STRONG THUNDERSTORMS MOVING OVER ANOKA...CHISAGO AND
WASHINGTON COUNTIES THROUGH 1000 PM CDT...

AT 928 PM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES NORTH OF FOREST
LAKE TO 4 MILES EAST OF BLAINE. THESE STORMS WERE MOVING NORTHEAST AT
15 MPH.

ONE HALF INCH DIAMETER HAIL...FREQUENT CLOUD TO GROUND LIGHTNING...
AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  CIRCLE PINES.
  WYOMING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 4541 9302 4532 9297 4517 9305 4513 9319
      4541 9312
TIME...MOT...LOC 0230Z 235DEG 13KT 4539 9298 4516 9313

Special weather statement, Aug 24, 9:37 PM CDT, 3 hours 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
937 PM CDT SUN AUG 24 2014

WIZ024-250300-
PIERCE-
937 PM CDT SUN AUG 24 2014

...STRONG THUNDERSTORMS DEVELOPING OVER PIERCE COUNTY THROUGH 1000
PM CDT...

AT 934 PM CDT...RADAR INDICATED THAT THUNDERSTORMS WERE RAPIDLY
DEVELOPING 8 MILES SOUTHEAST OF ELLSWORTH...OR 9 MILES NORTH OF
FRONTENAC STATE PARK. THESE STORMS WAS MOVING NORTHEAST AT 35 MPH.

ONE HALF INCH DIAMETER HAIL...FREQUENT CLOUD TO GROUND LIGHTNING...
AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  ESDAILE.
  MARTEL.
  SPRING VALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 4456 9236 4456 9241 4462 9253 4486 9239
      4486 9215 4485 9213 4472 9213
TIME...MOT...LOC 0237Z 217DEG 29KT 4465 9237

JPC

Special weather statement, Aug 24, 10:09 PM CDT, 3 hours 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1009 PM CDT SUN AUG 24 2014

WIZ015-016-250400-
BARRON-RUSK-
1009 PM CDT SUN AUG 24 2014

...STRONG THUNDERSTORMS MOVING OVER BARRON AND RUSK COUNTIES THROUGH
1100 PM CDT...

AT 1006 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG
THUNDERSTORM 4 MILES SOUTH OF RICE LAKE...OR 19 MILES SOUTH OF
SARONA. THIS STORM WAS MOVING NORTHEAST AT 40 MPH.

ONE HALF INCH DIAMETER HAIL...FREQUENT CLOUD TO GROUND LIGHTNING...
AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  RICE LAKE.
  HAUGEN.
  BRILL.
  MIKANA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 4533 9168 4545 9188 4565 9177 4564 9118
      4563 9118
TIME...MOT...LOC 0309Z 216DEG 35KT 4547 9169

JPC

Special weather statement, Aug 24, 10:48 PM CDT, 2 hours 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1048 PM CDT SUN AUG 24 2014

WIZ015-016-023>025-027-250515-
BARRON-CHIPPEWA-DUNN-PIERCE-RUSK-ST. CROIX-
1048 PM CDT SUN AUG 24 2014

...LINE OF STRONG THUNDERSTORMS MOVING OVER BARRON...CHIPPEWA...
DUNN...PIERCE...RUSK AND ST. CROIX COUNTIES THROUGH 1215 AM CDT...

AT 1046 PM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES SOUTHWEST OF BARRON
TO 6 MILES NORTH OF FRONTENAC STATE PARK. THESE STORMS WERE MOVING
NORTHEAST AT 30 MPH.

HAIL UP TO DIME SIZE...WINDS UP TO 40 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  WILSON.
  PRAIRIE FARM.
  BOYCEVILLE.
  BARRON.
  HILLSDALE.
  RICE LAKE AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STORMS ALONG THIS LINE COULD INTENSIFY QUICKLY...SO BE READY TO ACT
IF A WARNING IS ISSUED.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 4485 9162 4485 9165 4470 9171 4468 9184
      4469 9213 4463 9214 4459 9239 4537 9206
      4565 9153 4564 9119
TIME...MOT...LOC 0347Z 231DEG 25KT 4535 9193 4459 9232

JPC

Special weather statement, Aug 24, 11:27 PM CDT, 1 hour 50 minutes before

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Special weather statement, Aug 25, 1:17 AM CDT, 0 minutes before

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The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 24, 7:12 PM CDT	Special Weather Statement	MPX	Anoka	48 min
Aug 24, 7:21 PM CDT	Tornado Warning	MPX	Mille Lacs	24 min
Aug 24, 7:29 PM CDT	Severe Thunderstorm Warning	MPX	Isanti, Mille Lacs, Sherburne	46 min
Aug 24, 8:00 PM CDT	Special Weather Statement	MPX	Kanabec	30 min
Aug 24, 8:30 PM CDT	Special Weather Statement	MPX	Anoka	45 min
Aug 24, 9:12 PM CDT	Special Weather Statement	MPX	Chisago	48 min
Aug 24, 9:30 PM CDT	Special Weather Statement	MPX	Anoka	30 min
Aug 24, 9:47 PM CDT	Severe Thunderstorm Warning	MPX	Chisago, Washington	43 min
Aug 24, 9:37 PM CDT	Special Weather Statement	MPX	Pierce	23 min
Aug 24, 10:03 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pierce, Saint Croix	42 min
Aug 24, 10:09 PM CDT	Special Weather Statement	MPX	Barron	51 min
Aug 24, 10:48 PM CDT	Special Weather Statement	MPX	Barron, Dunn	87 min
Aug 24, 11:27 PM CDT	Special Weather Statement	MPX	Chippewa, Dunn, Pepin, Rusk	93 min

Nearby

Special Weather Statements in Wisconsin, 2014 Every special weather statement in 2014

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.