Alert archive / Wisconsin / Areal Flood Advisories in 2011

Areal Flood Advisory 40, NWS Twin Cities, MN

July 28, 20114 counties in Wisconsin

NWS Twin Cities, MN issued this areal flood advisory at Jul 28, 2011, 6:55 PM CDT for 4 counties in Wisconsin. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 28, 2011, 6:55 PM CDT (23:55 UTC)
Expired
Jul 28, 2011, 10:00 PM CDT
In force
3 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI

The radar

The La Crosse radar (KARX), 115 km from the middle of the area, began a volume at 23:54 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, 11.9 hours before the alert went out and 154 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2011-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1122 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2011-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -44 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1122 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
676 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
-0.3
Supercell composite
-1.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jul 28, 6:18 PM CDT, 37 minutes earlier.

Area forecast discussion, Jul 28, 6:18 PM CDT, 37 minutes before
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Hazardous weather outlook, Jul 28, 11:42 AM CDT, 7 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1142 AM CDT THU JUL 28 2011

MNZ082>085-091>093-291645-
WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-
1142 AM CDT THU JUL 28 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
MINNESOTA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EARLY
EVENING. SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF THUNDERSTORMS ACROSS THE OUTLOOK AREA
SATURDAY NIGHT...AND AGAIN MONDAY NIGHT AND TUESDAY. THERE IS A
SLIGHT RISK THAT SOME OF THE STORMS SATURDAY NIGHT COULD BE
SEVERE...PRIMARILY OVER CENTRAL MINNESOTA.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED.

MNZ041>045-047>070-073>078-WIZ014>016-023>028-291645-
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-POLK-BARRON-RUSK-
ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE-
1142 AM CDT THU JUL 28 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 CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EARLY
EVENING. SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF THUNDERSTORMS ACROSS THE OUTLOOK AREA
SATURDAY NIGHT...AND AGAIN MONDAY NIGHT AND TUESDAY. THERE IS A
SLIGHT RISK THAT SOME OF THE STORMS SATURDAY NIGHT COULD BE
SEVERE...PRIMARILY OVER CENTRAL MINNESOTA.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED.

In the hours before

Special weather statement, Jul 28, 2:27 PM CDT, 4 hours 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
227 PM CDT THU JUL 28 2011

MNZ077-078-083>085-091>093-282200-
BLUE EARTH-FARIBAULT-FREEBORN-GOODHUE-MARTIN-RICE-STEELE-WASECA-
227 PM CDT THU JUL 28 2011

...FUNNEL CLOUDS OBSERVED IN THE AREA...

AT 222 PM CDT...FUNNEL CLOUDS WERE REPORTED IN ASSOCIATION WITH A
THUNDERSTORM IN FREEBORN COUNTY NEAR ALBERT LEA. ADDITIONAL
SCATTERED THUNDERSTORMS WERE LOCATED IN AN AXIS FROM NEAR BLUE EARTH
IN FARIBAULT COUNTY NORTHEAST TO NEAR RED WING IN GOODHUE COUNTY.
ATMOSPHERIC CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF
ADDITIONAL FUNNEL CLOUDS IN THE AREA THROUGH 500 PM CDT. CONDITIONS
ARE NOT FAVORABLE FOR TORNADOES TO DEVELOP FROM SUCH FUNNELS... BUT
IT IS POSSIBLE THAT THEY COULD BRIEFLY EXTEND TO THE GROUND AND
RESULT IN A TORNADO... AND IF THAT WERE TO OCCUR LOCALIZED MINOR
DAMAGE MAY OCCUR. BE AWARE AND KEEP AN EYE TO THE SKY ACROSS SOUTH
CENTRAL INTO PORTIONS OF SOUTHEAST MINNESOTA THIS AFTERNOON... AND
BE PREPARED TO TAKE ACTION SHOULD A TORNADO BE OBSERVED OR IF
WARNINGS ARE ISSUED.
Local storm report, Jul 28, 2:54 PM CDT, 4 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
254 PM CDT THU JUL 28 2011

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

0222 PM     FUNNEL CLOUD     CONGER                  43.62N 93.53W
07/28/2011                   FREEBORN           MN   LAW ENFORCEMENT

            FUNNEL CLOUD REPORTED NEAR THE TOWN OF CONGER.

&&

DEVINNY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 28, 3:22 PM CDTAreal Flood AdvisoryMPXFreeborn, Goodhue, Rice, Steele4 hr
Jul 28, 5:21 PM CDTAreal Flood AdvisoryMPXEau Claire3 hr

Nearby

Areal Flood Advisories in Wisconsin, 2011Every areal flood 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.