Alert archive / Minnesota / Areal Flood Advisories in 2009

Areal Flood Advisory 13, NWS Twin Cities, MN

August 25, 2009Dakota County, Goodhue County, Minnesota; Pierce County, Wisconsin

NWS Twin Cities, MN issued this areal flood advisory at Aug 25, 2009, 5:44 AM CDT for Dakota County, Goodhue County, Minnesota; Pierce County, Wisconsin. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Aug 25, 2009, 5:44 AM CDT (10:44 UTC)
Expired: Aug 25, 2009, 8:30 AM CDT
In force: 3 hr
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

Counties Dakota County, MN, Goodhue County, MN, Pierce County, WI

The radar

The Minneapolis radar (KMPX), 71 km from the middle of the area, began a volume at 10:45 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.

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 Aug 25, 3:38 AM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, Aug 25, 3:38 AM CDT, 2 hours 6 minutes before

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Hazardous weather outlook, Aug 25, 4:08 AM CDT, 1 hour 36 minutes before

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In the hours before

Special weather statement, Aug 25, 2:42 AM CDT, 3 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
242 AM CDT TUE AUG 25 2009

MNZ074-075-082-083-091-092-250845-
BLUE EARTH-BROWN-FARIBAULT-MARTIN-NICOLLET-WATONWAN-
242 AM CDT TUE AUG 25 2009

AT 240 AM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM ST JAMES TO 14 MILES SOUTH
OF CEYLON. THESE STORMS WERE MOVING NORTHEAST AT 40 MPH.

HAIL UP TO DIME SIZE AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE
STORMS.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  ST JAMES.
  LA SALLE.
  WILBERT.
  HANSKA.
  NORTHROP.
  GRANADA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE THUNDERSTORMS COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

&&

LAT...LON 4350 9476 4405 9471 4441 9400 4364 9403
      4349 9428
TIME...MOT...LOC 0741Z 231DEG 35KT 4402 9461 4334 9467

Special weather statement, Aug 25, 3:32 AM CDT, 2 hours 12 minutes before

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Local storm report, Aug 25, 3:37 AM CDT, 2 hours 7 minutes before

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Special weather statement, Aug 25, 3:46 AM CDT, 1 hour 58 minutes before

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Local storm report, Aug 25, 4:19 AM CDT, 1 hour 25 minutes before

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Special weather statement, Aug 25, 4:41 AM CDT, 1 hour 3 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 25, 2:42 AM CDT	Special Weather Statement	MPX	Blue Earth, Martin, Watonwan	63 min
Aug 25, 2:58 AM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Martin, Nicollet, Sibley, Watonwan	47 min
Aug 25, 3:32 AM CDT	Special Weather Statement	MPX	Swift	58 min
Aug 25, 3:46 AM CDT	Special Weather Statement	MPX	Dakota, Faribault, Le Sueur, Rice, Steele, Waseca	59 min
Aug 25, 4:41 AM CDT	Special Weather Statement	MPX	Pierce	64 min
Aug 25, 6:19 AM CDT	Special Weather Statement	MPX	Barron	41 min
Aug 25, 7:15 AM CDT	Areal Flood Advisory	MPX	Barron, Polk	4 hr

Nearby

Areal Flood Advisories in Minnesota, 2009 Areal Flood Advisories in Wisconsin, 2009 Every areal flood advisory 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; radar from the NEXRAD Level II archive.