Alert archive / Minnesota / Flash Flood Watches in 2006

Flash Flood Watch 2, NWS Twin Cities, MN

August 24, 200619 counties in Minnesota; 9 counties in Wisconsin

NWS Twin Cities, MN issued this flash flood watch at Aug 24, 2006, 1:55 PM CDT for 19 counties in Minnesota; 9 counties in Wisconsin. It took effect at Aug 24, 2006, 7:00 PM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Aug 24, 2006, 1:55 PM CDT (18:55 UTC)
In effect from
Aug 24, 2006, 7:00 PM CDT
Expired
Aug 25, 2006, 4:03 AM CDT
In force
9 hr
Issued by
NWS Twin Cities, MN
Flood severity
None
All 28 counties

Anoka County, MN, Benton County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Stearns County, MN, Todd County, MN, Washington County, MN, Wright County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 57 km from the middle of the area, began a volume at 18:54 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, 6.9 hours before the alert went out and 59 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 2006-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1700 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2006-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.19395878Sfc1 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
1700 J/kg
Mixed-layer CIN
-236 J/kg
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS63 KMPX 241855
FFAMPX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
155 PM CDT THU AUG 24 2006

...EXCESSIVE RAINFALL EXPECTED OVER PART OF CENTRAL MINNESOTA AND
WESTERN WISCONSIN TONIGHT...

.AN UNSEASONABLY STRONG LOW PRESSURE SYSTEM SITUATED OVER SOUTH
DAKOTA IS DRAWING VERY MOIST...UNSTABLE AIR NORTHWARD INTO THE
UPPER MIDWEST...INCLUDING MUCH OF SOUTHERN MINNESOTA. AS THE LOW
PASSES OVER FAR SOUTHERN MINNESOTA TONIGHT...CONSIDERABLE
THUNDERSTORM ACTIVITY IS EXPECTED TO TRAIN FROM THE NORTHWEST TO
THE SOUTHEAST ACROSS MUCH OF CENTRAL MINNESOTA AND PART OF WEST
CENTRAL WISCONSIN. THERE IS A POTENTIAL FOR 3 TO 6 INCH RAIN
TOTALS WHICH WILL LIKELY SET OFF FLASH FLOODING IN THE WATCHED
AREA.

MNZ042>045-049>053-059>063-068>070-077-078-WIZ014>016-023>028-
250300-
/O.NEW.KMPX.FF.A.0002.060825T0000Z-060825T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TODD-MORRISON-MILLE LACS-KANABEC-STEARNS-BENTON-SHERBURNE-ISANTI-
CHISAGO-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-
DAKOTA-RICE-GOODHUE-POLK-BARRON-RUSK-ST. CROIX-PIERCE-DUNN-PEPIN-
CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...ST. CLOUD...FOLEY...ELK RIVER...CAMBRIDGE...
CENTER CITY...MONTICELLO...MINNEAPOLIS...BLAINE...ST. PAUL...
STILLWATER...CHASKA...SHAKOPEE...BURNSVILLE...FARIBAULT...
RED WING...AMERY...BALSAM LAKE...RICE LAKE...BARRON...LADYSMITH...
HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...MENOMONIE...
BOYCEVILLE...DURAND...PEPIN...CHIPPEWA FALLS...BLOOMER...
EAU CLAIRE...ALTOONA
155 PM CDT THU AUG 24 2006

...FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
FRIDAY MORNING...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A

* FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL MINNESOTA...EAST 
  CENTRAL MINNESOTA...SOUTH CENTRAL MINNESOTA...SOUTHEAST 
  MINNESOTA...NORTHWEST WISCONSIN AND WEST CENTRAL WISCONSIN...
  INCLUDING THE FOLLOWING AREAS...IN CENTRAL MINNESOTA...
  BENTON...MORRISON...SHERBURNE...STEARNS...TODD AND WRIGHT IN 
  EAST CENTRAL MINNESOTA...ANOKA...CARVER...CHISAGO...DAKOTA...
  HENNEPIN...ISANTI...KANABEC...MILLE LACS...RAMSEY...SCOTT AND 
  WASHINGTON IN SOUTH CENTRAL MINNESOTA...RICE IN SOUTHEAST 
  MINNESOTA...GOODHUE IN NORTHWEST WISCONSIN...BARRON...POLK AND 
  RUSK IN WEST CENTRAL WISCONSIN...CHIPPEWA...DUNN...EAU 
  CLAIRE...PEPIN...PIERCE AND ST. CROIX.

* FROM 7 PM CDT THIS EVENING THROUGH FRIDAY MORNING

* TRAINING THUNDERSTORM ACTIVITY THAT PASSES OVER THE SAME AREA
  OVERNIGHT

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$
WET
2 follow-up statements
000 
WGUS63 KMPX 250237
FFAMPX

FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
937 PM CDT THU AUG 24 2006

...EXCESSIVE RAINFALL STILL POSSIBLE OVER PARTS OF CENTRAL
MINNESOTA AND WESTERN WISCONSIN OVERNIGHT...

.A LOW PRESSURE SYSTEM OVER EASTERN SOUTH DAKOTA WILL MOVE TO
EAST CENTRAL MINNESOTA OVERNIGHT. SHOWERS AND THUNDERSTORMS WILL
ACCOMPANY THE LOW PRESSURE SYSTEM. THE RAINFALL OVERNIGHT WILL BE
ON TOP OF SEVERAL INCHES OF RAIN THAT FELL FROM THUNDERSTORMS ON
THURSDAY FROM CENTRAL MINNESOTA THROUGH WEST CENTRAL WISCONSIN.
THE ADDITIONAL RAIN OVERNIGHT ON THE ALREADY SATURATED GROUND COULD
RESULT IN FLASH FLOODING.

MNZ042>045-049>053-059>063-068>070-077-078-WIZ014>016-023>028-
251045-
/O.CON.KMPX.FF.A.0002.000000T0000Z-060825T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TODD-MORRISON-MILLE LACS-KANABEC-STEARNS-BENTON-SHERBURNE-ISANTI-
CHISAGO-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-
DAKOTA-RICE-GOODHUE-POLK-BARRON-RUSK-ST. CROIX-PIERCE-DUNN-PEPIN-
CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...ST. CLOUD...FOLEY...ELK RIVER...CAMBRIDGE...
CENTER CITY...MONTICELLO...MINNEAPOLIS...BLAINE...ST. PAUL...
STILLWATER...CHASKA...SHAKOPEE...BURNSVILLE...FARIBAULT...
RED WING...AMERY...BALSAM LAKE...RICE LAKE...BARRON...LADYSMITH...
HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...MENOMONIE...
BOYCEVILLE...DURAND...PEPIN...CHIPPEWA FALLS...BLOOMER...
EAU CLAIRE...ALTOONA
937 PM CDT THU AUG 24 2006

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT FRIDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF CENTRAL MINNESOTA...EAST CENTRAL MINNESOTA...SOUTH 
  CENTRAL MINNESOTA...SOUTHEAST MINNESOTA...NORTHWEST WISCONSIN 
  AND WEST CENTRAL WISCONSIN...INCLUDING THE FOLLOWING AREAS...
  IN CENTRAL MINNESOTA...BENTON...MORRISON...SHERBURNE...
  STEARNS...TODD AND WRIGHT IN EAST CENTRAL MINNESOTA...ANOKA...
  CARVER...CHISAGO...DAKOTA...HENNEPIN...ISANTI...KANABEC...
  MILLE LACS...RAMSEY...SCOTT AND WASHINGTON IN SOUTH CENTRAL 
  MINNESOTA...RICE IN SOUTHEAST MINNESOTA...GOODHUE IN NORTHWEST 
  WISCONSIN...BARRON...POLK AND RUSK IN WEST CENTRAL WISCONSIN...
  CHIPPEWA...DUNN...EAU CLAIRE...PEPIN...PIERCE AND ST. CROIX.

* UNTIL 7 AM CDT FRIDAY

* SHOWERS AND THUNDERSTORMS ACROSS CENTRAL MINNESOTA WILL SPREAD
  INTO WEST CENTRAL WISCONSIN OVERNIGHT. SOME AREAS MAY RECEIVE
  ANOTHER 1 TO 2 INCHES OF RAIN BY MORNING WHICH COULD CAUSE
  FLOODING PROBLEMS.

* FLOODING WILL BE POSSIBLE ON ROADWAYS AND LOW LYING AREAS. URBAN
  AREAS WILL BE ESPECIALLY AT RISK FOR FLOODING.

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

$$

RAH
000 
WGUS63 KMPX 250903
FFAMPX

FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
403 AM CDT FRI AUG 25 2006

...FLASH FLOOD WATCH CANCELLED...

.THE FLASH FLOOD WATCH FOR PORTIONS OF EAST CENTRAL...SOUTH
CENTRAL...AND SOUTHEAST MINNESOTA AND WEST CENTRAL WISCONSIN HAS
BEEN CANCELLED. THE THREAT FOR ADDITIONAL WIDESPREAD HEAVY
RAINFALL HAS DIMINISHED ACROSS THE WATCH AREA. SOME ADDITIONAL
SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THROUGH THE
MORNING...BRINGING LOCALLY HEAVY DOWNPOURS...BUT COVERAGE WILL BE ISOLATED.


MNZ042>045-049>053-059>063-068>070-077-078-WIZ014>016-023>028-
251015-
/O.CAN.KMPX.FF.A.0002.000000T0000Z-060825T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TODD-MORRISON-MILLE LACS-KANABEC-STEARNS-BENTON-SHERBURNE-ISANTI-
CHISAGO-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-
DAKOTA-RICE-GOODHUE-POLK-BARRON-RUSK-ST. CROIX-PIERCE-DUNN-PEPIN-
CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...ST. CLOUD...FOLEY...ELK RIVER...CAMBRIDGE...
CENTER CITY...MONTICELLO...MINNEAPOLIS...BLAINE...ST. PAUL...
STILLWATER...CHASKA...SHAKOPEE...BURNSVILLE...FARIBAULT...
RED WING...AMERY...BALSAM LAKE...RICE LAKE...BARRON...LADYSMITH...
HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...MENOMONIE...
BOYCEVILLE...DURAND...PEPIN...CHIPPEWA FALLS...BLOOMER...
EAU CLAIRE...ALTOONA
403 AM CDT FRI AUG 25 2006

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL MINNESOTA...EAST
CENTRAL MINNESOTA...SOUTH CENTRAL MINNESOTA...SOUTHEAST
MINNESOTA...NORTHWEST WISCONSIN AND WEST CENTRAL WISCONSIN HAS
BEEN CANCELLED. THE FLASH FLOOD WATCH FOR PORTIONS OF EAST CENTRAL AND SOUTH
CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN HAS BEEN CANCELLED. 
THE THREAT FOR ADDITIONAL WIDESPREAD HEAVY RAINFALL HAS
DIMINISHED ACROSS THE WATCH AREA. SOME ADDITIONAL SHOWERS AND
THUNDERSTORMS WILL BE POSSIBLE THROUGH THE MORNING...BRINGING
LOCALLY HEAVY DOWNPOURS...BUT COVERAGE WILL BE ISOLATED.

$$

MDB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 24, 7:57 AM CDTSevere Thunderstorm WarningMPXMcLeod33 min
Aug 24, 8:06 AM CDTSevere Thunderstorm WarningMPXCarver, Sibley39 min
Aug 24, 8:27 AM CDTSevere Thunderstorm WarningMPXScott48 min
Aug 24, 8:29 AM CDTSevere Thunderstorm WarningMPXMcLeod31 min
Aug 24, 8:42 AM CDTSevere Thunderstorm WarningMPXCarver48 min
Aug 24, 8:48 AM CDTSevere Thunderstorm WarningMPXGoodhue, Rice42 min
Aug 24, 8:55 AM CDTSevere Thunderstorm WarningMPXLe Sueur20 min
Aug 24, 9:04 AM CDTSevere Thunderstorm WarningMPXSibley26 min
Aug 24, 9:13 AM CDTSevere Thunderstorm WarningMPXScott62 min
Aug 24, 9:19 AM CDTSevere Thunderstorm WarningMPXDakota41 min
Aug 24, 9:28 AM CDTSevere Thunderstorm WarningMPXRice47 min
Aug 24, 9:46 AM CDTSevere Thunderstorm WarningMPXGoodhue59 min
Aug 24, 9:53 AM CDTSevere Thunderstorm WarningMPXCarver22 min
Aug 24, 9:59 AM CDTSevere Thunderstorm WarningMPXDakota, Rice61 min
Aug 24, 10:11 AM CDTSevere Thunderstorm WarningMPXScott49 min
Aug 24, 10:37 AM CDTSevere Thunderstorm WarningMPXGoodhue53 min
Aug 24, 10:59 AM CDTSevere Thunderstorm WarningMPXDakota, Rice46 min
Aug 24, 11:12 AM CDTSevere Thunderstorm WarningMPXScott31 min
Aug 24, 11:22 AM CDTSevere Thunderstorm WarningMPXGoodhue53 min
Aug 24, 11:37 AM CDTSevere Thunderstorm WarningMPXRice38 min
Aug 24, 11:40 AM CDTSevere Thunderstorm WarningMPXDakota54 min
Aug 24, 11:55 AM CDTSevere Thunderstorm WarningMPXWright65 min
Aug 24, 12:04 PM CDTSevere Thunderstorm WarningMPXGoodhue41 min
Aug 24, 12:41 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stevens49 min
Aug 24, 12:48 PM CDTSevere Thunderstorm WarningMPXHennepin57 min
Aug 24, 12:57 PM CDTSevere Thunderstorm WarningMPXWright33 min
Aug 24, 1:39 PM CDTSevere Thunderstorm WarningMPXAnoka66 min
Aug 24, 2:19 PM CDTSevere Thunderstorm WarningMPXStearns21 min
Aug 24, 2:53 PM CDTSevere Thunderstorm WarningMPXBenton37 min
Aug 24, 3:03 PM CDTSevere Thunderstorm WarningMPXRamsey, Washington27 min
Aug 24, 3:07 PM CDTSevere Thunderstorm WarningMPXIsanti23 min
Aug 24, 3:17 PM CDTSevere Thunderstorm WarningMPXMille Lacs28 min
Aug 24, 3:22 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope38 min
Aug 24, 3:26 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti34 min
Aug 24, 3:28 PM CDTSevere Thunderstorm WarningMPXWashington47 min
Aug 24, 3:46 PM CDTSevere Thunderstorm WarningMPXStearns, Todd59 min
Aug 24, 4:26 PM CDTSevere Thunderstorm WarningMPXIsanti, Kanabec, Mille Lacs64 min
Aug 24, 4:42 PM CDTSevere Thunderstorm WarningMPXBenton, Sherburne, Stearns63 min
Aug 24, 5:09 PM CDTTornado WarningMPXNicollet66 min
Aug 24, 5:12 PM CDTSevere Thunderstorm WarningMPXMeeker, Wright63 min
Aug 24, 5:14 PM CDTTornado WarningMPXBlue Earth, Brown16 min
Aug 24, 5:39 PM CDTTornado WarningMPXLe Sueur66 min
Aug 24, 5:41 PM CDTSevere Thunderstorm WarningMPXSherburne49 min
Aug 24, 5:51 PM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin54 min
Aug 24, 6:03 PM CDTSevere Thunderstorm WarningMPXRice57 min
Aug 24, 6:22 PM CDTTornado WarningMPXRice53 min
Aug 24, 6:45 PM CDTSevere Thunderstorm WarningMPXLe Sueur45 min
Aug 24, 6:53 PM CDTSevere Thunderstorm WarningMPXGoodhue52 min
Aug 24, 3:50 PM CDTSevere Thunderstorm WarningMPXPierce40 min
Aug 24, 4:12 PM CDTSevere Thunderstorm WarningMPXDunn, Saint Croix63 min
Aug 24, 4:49 PM CDTSevere Thunderstorm WarningMPXEau Claire, Pepin56 min
Aug 24, 5:21 PM CDTSevere Thunderstorm WarningMPXDunn, Pierce54 min
Aug 24, 5:44 PM CDTSevere Thunderstorm WarningMPXEau Claire, Pepin61 min

Nearby

Flash Flood Watches in Minnesota, 2006Flash Flood Watches in Wisconsin, 2006Every flash flood watch in 2006

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.