Alert archive / Wisconsin / Special Weather Statements in 2015

Special Weather Statement, NWS Twin Cities, MN

September 2, 2015Dunn County, Wisconsin

NWS Twin Cities, MN issued this special weather statement at Sep 2, 2015, 12:38 PM CDT for Dunn County, Wisconsin. It was in force for 112 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: Sep 2, 2015, 12:38 PM CDT (17:38 UTC)
Expired: Sep 2, 2015, 2:30 PM CDT
In force: 112 min
Issued by: NWS Twin Cities, MN

County Dunn County, WI

The radar

The Minneapolis radar (KMPX), 131 km from the middle of the area, began a volume at 17:40 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, 5.6 hours before the alert went out and 133 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: 93 J/kg
Mixed-layer CIN: -227 J/kg
Mixed-layer LCL: 1030 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 166 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 Sep 2, 5:23 AM CDT, 7 hours 15 minutes earlier.

Area forecast discussion, Sep 2, 5:23 AM CDT, 7 hours 15 minutes before

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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Sep 2, 3:38 AM CDT, 9 hours before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
338 AM CDT WED SEP 2 2015

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
030845-
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-
338 AM CDT WED SEP 2 2015

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

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS AND POCKETS OF HEAVY RAIN WILL CONTINUE TO
SHIFT EAST OVER EASTERN MINNESOTA THROUGH WESTERN WISCONSIN THIS
MORNING...GRADUALLY ENDING THIS AFTERNOON. SEVERE WEATHER IS NOT
EXPECTED. HOWEVER...RAINFALL RATES MAY AT TIMES EXCEED 1 INCH PER
HOUR...POSSIBLY LEADING TO LOCALIZED NUISANCE FLOODING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THUNDERSTORMS AND PERIODS OF HEAVY RAIN RETURN FRIDAY NIGHT
THROUGH SUNDAY NIGHT. THE POTENTIAL FOR SEVERE WEATHER IS VERY LOW
AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

In the hours before

Local storm report, Sep 2, 7:47 AM CDT, 4 hours 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
747 AM CDT WED SEP 2 2015

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 AM     HEAVY RAIN       2 ESE MANKATO           44.16N 93.95W
09/02/2015  E2.60 INCH       BLUE EARTH         MN   PUBLIC

            RELAYED VIA TWITTER.

&&

MKM

Local storm report, Sep 2, 7:53 AM CDT, 4 hours 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
753 AM CDT WED SEP 2 2015

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 AM     HEAVY RAIN       2 WNW NEW ULM           44.32N 94.50W
09/02/2015  M2.21 INCH       BROWN              MN   AWOS

            REPORTED AT NEW ULM AIRPORT

&&

MKM

Local storm report, Sep 2, 7:57 AM CDT, 4 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
757 AM CDT WED SEP 2 2015

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 AM     HEAVY RAIN       1 NW NEW ULM            44.32N 94.48W
09/02/2015  M2.31 INCH       BROWN              MN   COCORAHS

&&

MKM

Local storm report, Sep 2, 8:43 AM CDT, 3 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
843 AM CDT WED SEP 2 2015

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0740 AM     HEAVY RAIN       LUCAN                   44.41N 95.41W
09/02/2015  M2.55 INCH       REDWOOD            MN   COCORAHS

&&

MKM

Local storm report, Sep 2, 12:34 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1234 PM CDT WED SEP 2 2015

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 AM     HEAVY RAIN       WABASSO                 44.40N 95.25W
09/02/2015  M4.20 INCH       REDWOOD            MN   PUBLIC

            REPORTED VIA TWITTER

&&

MKM

Special weather statement, Sep 2, 12:38 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1238 PM CDT WED SEP 2 2015

WIZ014-015-023-025-027-021930-
ST. CROIX-DUNN-POLK-BARRON-CHIPPEWA-
1238 PM CDT WED SEP 2 2015

...VERY HEAVY RAIN AND LOCALIZED MINOR FLOODING EXPECTED...

VERY HEAVY RAIN WITH THE POTENTIAL FOR LOCALIZED FLOODING WILL AFFECT
THE FOLLOWING COUNTIES...

ST. CROIX...DUNN...POLK...BARRON...CHIPPEWA...

AT 1232 PM CDT...VERY HEAVY RAIN WITH THE POTENTIAL FOR LOCALIZED
FLOODING WAS OVER SOUTHERN POLK...SOUTHERN BARRON....NORTHERN
DUNN...NORTHEAST ST CROIX AND NORTHWEST CHIPPEWA COUNTY.  RADAR
RAINFALL ESTIMATES OF 3 TO 4 INCHES HAVE ALREADY OCCURRED ACROSS
NORTHERN DUNN COUNTY THIS MORNING.  RAINFALL RATES OF 2 TO 3 INCHES
AN HOUR ARE OCCURRING IN THE HEAVY RAIN AREA.

ADDITIONAL RAINFALL OF 1 TO 3 INCHES IS POSSIBLE THROUGH 3 PM.

LOCATIONS IMPACTED INCLUDE...BLOOMER...CHETEK...CLEAR LAKE...
CLAYTON...NEW AUBURN... PRAIRIE FARM...DALLAS...RIDGELAND...FOREST
...SAND CREEK AND DEER PARK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 U.S. HIGHWAY 53 BETWEEN MILE MARKERS 110 AND 127.
 U.S. HIGHWAY 61 NEAR MILE MARKER 165.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...AS WELL AS FARM AND COUNTRY ROADS. DO NOT
ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

LAT...LON 4501 9158 4513 9227 4523 9254 4535 9255
      4529 9128
TIME...MOT...LOC 1732Z 180DEG 0KT 4512 9187

DWE

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 11:39 PM CDT	Special Weather Statement	MPX	Brown, Redwood, Yellow Medicine	2 hr
Sep 2, 1:47 AM CDT	Special Weather Statement	MPX	Blue Earth, Brown, Le Sueur, Nicollet, Waseca	118 min
Sep 2, 1:03 PM CDT	Flash Flood Warning	MPX	Chippewa, Dunn	4 hr
Sep 2, 1:49 PM CDT	Special Weather Statement	MPX	Eau Claire	41 min
Sep 2, 2:04 PM CDT	Special Weather Statement	MPX	Chippewa	116 min
Sep 2, 3:11 PM CDT	Flash Flood Warning	MPX	Chippewa	2 hr

Nearby

Special Weather Statements in Wisconsin, 2015 Every special weather statement in 2015

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.