Alert archive / Wisconsin / Special Weather Statements in 2010

Special Weather Statement, NWS Twin Cities, MN

July 11, 2010Polk County, Wisconsin

NWS Twin Cities, MN issued this special weather statement at Jul 11, 2010, 2:49 PM CDT for Polk County, Wisconsin. It was in force for 56 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: Jul 11, 2010, 2:49 PM CDT (19:49 UTC)
Expired: Jul 11, 2010, 3:45 PM CDT
In force: 56 min
Issued by: NWS Twin Cities, MN

County Polk County, WI

The radar

The Duluth radar (KDLH), 129 km from the middle of the area, began a volume at 19:52 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, 7.8 hours before the alert went out and 134 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: 37 J/kg
Mixed-layer CIN: -253 J/kg
Mixed-layer LCL: 1595 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

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 Jul 11, 12:56 PM CDT, 1 hour 53 minutes earlier.

Area forecast discussion, Jul 11, 12:56 PM CDT, 1 hour 53 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Jul 11, 12:18 PM CDT, 2 hours 31 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1218 PM CDT SUN JUL 11 2010

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
121730-
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-
1218 PM CDT SUN JUL 11 2010

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 THIS AFTERNOON
FROM SOUTH CENTRAL INTO EAST CENTRAL MINNESOTA AND WEST CENTRAL
WISCONSIN...AS A COLD FRONT PASSES ACROSS THE AREA. THE PRIMARY THREATS
TODAY WILL BE DAMAGING WIND GUSTS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE CONTINUES TO BE INDICATIONS THAT A MORE SIGNIFICANT SEVERE
WEATHER EVENT WILL BE POSSIBLE TUESDAY EVENING INTO WEDNESDAY
NIGHT AS A STRONG COLD FRONT SWEEPS ACROSS THE REGION. THERE
CURRENTLY APPEARS TO BE THE POTENTIAL FOR HAIL...DAMAGING
WINDS...AND POSSIBLY TORNADOES WITH THIS ACTIVITY. AT THIS TIME...THE
HIGHEST POTENTIAL FOR SEVERE WEATHER WILL COME TUESDAY NIGHT
ACROSS WEST CENTRAL AND CENTRAL MINNESOTA. WEDNESDAY AFTERNOON
INTO WEDNESDAY NIGHT WILL SEE THE HIGHEST SEVERE WEATHER THREAT
MOVE INTO SOUTHERN AND CENTRAL MINNESOTA EAST INTO WEST CENTRAL
WISCONSIN.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON ACROSS
SOUTH CENTRAL AND EAST CENTRAL MINNESOTA AND WEST CENTRAL
WISCONSIN.

In the hours before

Special weather statement, Jul 11, 2:49 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
249 PM CDT SUN JUL 11 2010

WIZ014-112045-
POLK-
249 PM CDT SUN JUL 11 2010

...STRONG THUNDERSTORM MOVING INTO NORTHERN POLK COUNTY THROUGH 345
PM CDT...

AT 244 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG
THUNDERSTORM 6 MILES EAST OF GRANTSBURG. THIS STORM WAS MOVING
SOUTHEAST AT 15 MPH.

HAIL UP TO DIME SIZE AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  LEWIS.
  CLAM FALLS.
  MCKINLEY
  FREDERIC.

LAT...LON 4572 9216 4553 9218 4554 9230 4566 9255
      4571 9255 4573 9254 4574 9252 4574 9219
TIME...MOT...LOC 1948Z 299DEG 15KT 4577 9254

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 7:24 PM CDT	Areal Flood Advisory	MPX	Kandiyohi, Pope, Stearns, Stevens, Swift	4 hr
Jul 10, 7:53 PM CDT	Flash Flood Warning	MPX	Pope, Stevens	2 hr
Jul 10, 7:58 PM CDT	Severe Thunderstorm Warning	MPX	Pope	62 min
Jul 10, 8:06 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	54 min
Jul 10, 8:10 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Morrison	65 min
Jul 10, 8:18 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Swift	57 min
Jul 10, 8:30 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle	60 min
Jul 10, 8:39 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs	66 min
Jul 10, 9:01 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle	59 min
Jul 10, 9:03 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Swift	57 min
Jul 10, 9:11 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs, Morrison	38 min
Jul 10, 9:43 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Redwood, Renville, Yellow Medicine	62 min
Jul 10, 9:45 PM CDT	Areal Flood Advisory	MPX	Chippewa, Kandiyohi, Lac qui Parle, Renville, Swift, Yellow Medicine	4 hr
Jul 10, 9:57 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, McLeod, Meeker	63 min
Jul 10, 10:12 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Lac qui Parle	33 min
Jul 10, 10:15 PM CDT	Severe Thunderstorm Warning	MPX	Redwood	60 min
Jul 10, 10:43 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Redwood, Renville, Sibley, Yellow Medicine	62 min
Jul 10, 10:51 PM CDT	Special Weather Statement	MPX	Carver	54 min
Jul 10, 11:16 PM CDT	Special Weather Statement	MPX	Brown, Nicollet, Sibley	44 min
Jul 11, 3:25 PM CDT	Special Weather Statement	MPX	Freeborn	50 min
Jul 11, 4:25 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Washington	39 min
Jul 11, 4:55 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue	65 min
Jul 11, 4:37 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Dunn, Polk, Saint Croix	68 min
Jul 11, 5:28 PM CDT	Special Weather Statement	MPX	Rusk	47 min
Jul 11, 6:39 PM CDT	Special Weather Statement	MPX	Pierce	51 min
Jul 11, 6:58 PM CDT	Special Weather Statement	MPX	Eau Claire	47 min

Nearby

Special Weather Statements in Wisconsin, 2010 Every special weather statement in 2010

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.