Alert archive / Minnesota / Special Weather Statements in 2009

Special Weather Statement, NWS Twin Cities, MN

August 19, 2009Brown County, Nicollet County, Watonwan County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Aug 19, 2009, 8:38 PM CDT for Brown County, Nicollet County, Watonwan County, Minnesota. It was in force for 67 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 19, 2009, 8:38 PM CDT (01:38 UTC)
Expired: Aug 19, 2009, 9:45 PM CDT
In force: 67 min
Issued by: NWS Twin Cities, MN

Counties Brown County, MN, Nicollet County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 01:38 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

Omaha, NE (KOAX), launched 00:00Z, 1.6 hours before the alert went out and 355 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: 1973 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1055 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.7

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 19, 6:53 PM CDT, 1 hour 45 minutes earlier.

Area forecast discussion, Aug 19, 6:53 PM CDT, 1 hour 45 minutes before

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Hazardous weather outlook, Aug 19, 4:27 PM CDT, 4 hours 11 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
427 PM CDT WED AUG 19 2009

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
201200-
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-
427 PM CDT WED AUG 19 2009

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

.DAY ONE...LATE THIS AFTERNOON INTO TONIGHT

A COLD FRONT WILL CONTINUE TO PUSH EAST THROUGH WESTERN WISCONSIN
THROUGH EARLY EVENING. EMBEDDED THUNDERSTORMS WILL CONTINUE ALONG
THIS...CAPABLE OF PRODUCING BRIEF TORNADOES. MORE SCATTERED
THUNDERSTORMS WILL EVOLVE FROM WESTERN MINNESOTA INTO CENTRAL
MINNESOTA THROUGH MID-EVENING. THESE WILL BE CAPABLE OF PRODUCING
UP TO QUARTER SIZE HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SHOWERS WITH A FEW EMBEDDED THUNDERSTORMS WILL CONTINUE INTO
THURSDAY MAINLY IN EASTERN MINNESOTA INTO WISCONSIN. THESE STORMS
ARE NOT EXPECTED TO BE SEVERE.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION IS REQUESTED IN WESTERN WISCONSIN
THROUGH EARLY EVENING. SPOTTERS SHOULD REMAIN ALERT ACROSS THE
REMAINDER OF THE AREA INTO TONIGHT.

In the hours before

Local storm report, Aug 19, 6:22 PM CDT, 2 hours 16 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
622 PM CDT WED AUG 19 2009

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

0220 PM     TSTM WND DMG     MINNEAPOLIS             44.96N 93.27W
08/19/2009                   HENNEPIN           MN   TRAINED SPOTTER

            2 HOMES DAMAGED, 3 GARAGES DESTROYED, AND 2 FT DIAMETER
            TREES DOWN NEAR PORTLAND AVE AND 4TH AVE SOUTH. ALSO 2
            GARAGES DAMAGED AT INTERSECTION OF PARK AVE AND 47TH...
            AND 2 HOUSES DAMAGED AT 48TH AND PARK AVE.

&&

MKM

Local storm report, Aug 19, 6:33 PM CDT, 2 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
633 PM CDT WED AUG 19 2009

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

0454 PM     TSTM WND DMG     NORTH BRANCH            45.51N 92.98W
08/19/2009                   CHISAGO            MN   TRAINED SPOTTER

            MAJOR TREE DAMAGE AND TELEPHONE POLE DOWN IN NORTH BRANCH
            ALONG HIGHWAY 95.

&&

RHATTEBE

Local storm report, Aug 19, 6:35 PM CDT, 2 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
635 PM CDT WED AUG 19 2009

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

0343 PM     HEAVY RAIN       8 WNW ISANTI            45.53N 93.41W
08/19/2009  M5.50 INCH       ISANTI             MN   TRAINED SPOTTER

            5.5 INCHES OF RAIN REPORTED BY SPOTTER IN SPENCER BROOK.

&&

MKM

Local storm report, Aug 19, 6:39 PM CDT, 1 hour 59 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
639 PM CDT WED AUG 19 2009

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

0454 PM     HEAVY RAIN       5 SSW CAMBRIDGE         45.49N 93.25W
08/19/2009  M3.50 INCH       ISANTI             MN   TRAINED SPOTTER

            RAINFALL OCCURED OVER THE PAST 12 HOURS.

0515 PM     HEAVY RAIN       5 SSW CAMBRIDGE         45.49N 93.25W
08/19/2009  M3.50 INCH       ISANTI             MN   TRAINED SPOTTER

            RAINFALL OCCURED OVER THE PAST 12 HOURS.

&&

RHATTEBE

Local storm report, Aug 19, 6:56 PM CDT, 1 hour 42 minutes before

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Local storm report, Aug 19, 6:57 PM CDT, 1 hour 41 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 19, 7:41 PM CDT	Tornado Warning	MPX	Blue Earth	34 min
Aug 20, 9:01 AM CDT	Areal Flood Advisory	MPX	Benton, Chisago, Isanti, Kanabec, Mille Lacs, Morrison	6 hr

Nearby

Special Weather Statements in Minnesota, 2009 Every special weather statement in 2009

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.