Alert archive / Minnesota / Flash Flood Watches in 2007

Flash Flood Watch 2, NWS Twin Cities, MN

August 18, 2007Pepin County, Wisconsin; 12 counties in Minnesota

NWS Twin Cities, MN issued this flash flood watch at Aug 18, 2007, 3:52 AM CDT for Pepin County, Wisconsin; 12 counties in Minnesota. It took effect at Aug 18, 2007, 4:00 AM CDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Aug 18, 2007, 3:52 AM CDT (08:52 UTC)
In effect from
Aug 18, 2007, 4:00 AM CDT
Expired
Aug 19, 2007, 4:00 AM CDT
In force
24 hr
Issued by
NWS Twin Cities, MN
Flood severity
None

Counties Blue Earth County, MN, Brown County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Le Sueur County, MN, Martin County, MN, Nicollet County, MN, Rice County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN, Pepin County, WI

The radar

The Minneapolis radar (KMPX), 84 km from the middle of the area, began a volume at 08:55 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 00:00Z, 8.9 hours before the alert went out and 84 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 00:00Z on 2007-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2007-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2194 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
53 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.

000 
WGUS63 KMPX 180922 CCA
FFAMPX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
352 AM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH FOR PARTS OF SOUTH CENTRAL MINNESOTA THROUGH    
7 PM THIS EVENING...

.A NEARLY STATIONARY FRONT...OVER SOUTHERN SOUTH DAKOTA AND
NORTHERN IOWA...WILL BE THE MAIN FOCUS FOR REPEATED ROUNDS OF
SHOWERS AND THUNDERSTORMS AS PACIFIC MOISTURE GETS DRAWN NORTH OF 
THE FRONT TODAY. RAINFALL RATES COULD RANGE FROM ONE TO TWO INCHES 
PER HOUR.

DUE TO RECENT RAINS THAT HAVE OCCURRED OVER THE PAST WEEK...THE TOP 
SOIL IS ALREADY SATURATED. RUNOFF FROM THESE RAINS COULD CAUSE SOME 
LOCALIZE FLOODING OR RAPID RISES ALONG SOME MINOR RIVERS AND 
STREAMS...ESPECIALLY IN THE MANKATO...OWATONNA...WASECA
..ALBERT LEA AND FARIBAULT AREAS.

CAMPERS AND RECREATIONAL INTERESTS SHOULD MONITOR THE LATEST
STATEMENTS...AND BE PREPARED TO TAKE ACTION IF A FLASH FLOOD WARNING 
IS ISSUED.

MNZ074>077-082>085-091>093-181700-
/O.NEW.KMPX.FF.A.0002.070818T0900Z-070819T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN-NICOLLET-LE SUEUR-RICE-WATONWAN-BLUE EARTH-WASECA-STEELE-
MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...NEW ULM...ST. PETER...LE SUEUR...
FARIBAULT...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...
BLUE EARTH...ALBERT LEA
352 AM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

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

* FLASH FLOOD WATCH FOR A PORTION OF SOUTH CENTRAL MINNESOTA...
  INCLUDING THE FOLLOWING AREAS...BLUE EARTH...BROWN...
  FARIBAULT...FREEBORN...LE SUEUR...MARTIN...NICOLLET...RICE...
  STEELE...WASECA AND WATONWAN.

* THROUGH 7 PM CDT THIS EVENING

* A NEARLY STATIONARY FRONT...OVER SOUTHERN SOUTH DAKOTA AND
  NORTHERN IOWA...WILL BE THE MAIN FOCUS FOR REPEATED ROUNDS OF
  SHOWERS AND THUNDERSTORMS AS PACIFIC MOISTURE GETS DRAWN NORTH     
  OF THE FRONT TODAY. RAINFALL RATES COULD RANGE FROM ONE TO TWO     
  INCHES PER HOUR.

* DUE TO RECENT RAINS THAT HAVE OCCURRED OVER THE PAST               
  WEEK...THE TOP SOIL IS ALREADY SATURATED. RUNOFF FROM              
  THIS ADDITIONAL RAIN COULD CAUSE SOME LOCALIZE FLOODING OR RAPID   
  RISES ALONG SOME MINOR RIVERS AND STREAMS...ESPECIALLY IN THE      
  MANKATO...OWATONNA...WASECA...ALBERT LEA AND FARIBAULT AREAS.

* CAMPERS AND RECREATIONAL INTERESTS SHOULD MONITOR THE LATEST       
  STATEMENTS...AND BE PREPARED TO TAKE ACTION IF A FLASH FLOOD     
  WARNING BE ISSUED.


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


$$
3 follow-up statements
000 
WGUS63 KMPX 181709
FFAMPX

FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1209 PM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH FOR PARTS OF SOUTH CENTRAL MINNESOTA THROUGH
7 PM THIS EVENING...

.A SLOWLY NORTHWARD MOVING WARM FRONT OVER THE MISSOURI RIVER
VALLEY WILL HELP TO FOCUS MOISTURE AND LIFT FOR REPEATED ROUNDS
OF SHOWERS AND EMBEDDED THUNDERSTORMS OVER SOUTHERN MINNESOTA THIS
AFTERNOON. RAINFALL RATES HAVE AT TIMES ALREADY TODAY AND COULD
CONTINUE TO RANGE FROM ONE AND A HALF TO TWO AND A HALF INCHES PER
HOUR...ESPECIALLY WITHIN EMBEDDED THUNDERSTORMS. RAINFALL AMOUNTS
OF ONE TO TWO AND A HALF INCHES HAVE BEEN OBSERVED OR ESTIMATED
BY RADAR THIS MORNING FROM SPRINGFIELD SOUTHEAST TO THE INTERSTATE
90 CORRIDOR.

DUE TO RECENT RAINS THAT HAVE OCCURRED OVER THE PAST
WEEK...THE TOP SOIL IS ALREADY SATURATED. RUNOFF FROM ADDITIONAL
RAINFALL COULD CAUSE SOME LOCALIZE FLOODING OR RAPID RISES ALONG
SOME MINOR RIVERS AND STREAMS. SOME STREAM BASINS THAT HAVE SEEN
THE HIGHEST RAINFALL AMOUNTS THUS FAR TODAY INCLUDE THE EAST
BRANCH OF THE BLUE EARTH RIVER...BRUSH CREEK...GOOSE CREEK...AND
LIME CREEK.

CAMPERS AND RECREATIONAL INTERESTS SHOULD MONITOR THE LATEST
STATEMENTS...AND BE PREPARED TO TAKE ACTION IF A FLASH FLOOD
WARNING IS ISSUED.

MNZ074>077-082>085-091>093-190000-
/O.CON.KMPX.FF.A.0002.000000T0000Z-070819T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN-NICOLLET-LE SUEUR-RICE-WATONWAN-BLUE EARTH-WASECA-STEELE-
MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...NEW ULM...ST. PETER...LE SUEUR...
FARIBAULT...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...
BLUE EARTH...ALBERT LEA
1209 PM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF SOUTH CENTRAL MINNESOTA...INCLUDING THE FOLLOWING 
  AREAS...BLUE EARTH...BROWN...FARIBAULT...FREEBORN...LE SUEUR...
  MARTIN...NICOLLET...RICE...STEELE...WASECA AND WATONWAN.

* UNTIL 7 PM CDT THIS EVENING

* A SLOWLY NORTHWARD MOVING WARM FRONT OVER THE MISSOURI RIVER
  VALLEY WILL HELP TO FOCUS MOISTURE AND LIFT FOR REPEATED ROUNDS
  OF SHOWERS AND EMBEDDED THUNDERSTORMS OVER SOUTHERN MINNESOTA
  THIS AFTERNOON. RAINFALL RATES HAVE AT TIMES ALREADY TODAY AND
  COULD CONTINUE TO RANGE FROM ONE AND A HALF TO TWO AND A HALF
  INCHES PER HOUR...ESPECIALLY WITHIN EMBEDDED THUNDERSTORMS.
  RAINFALL AMOUNTS OF ONE TO TWO AND A HALF INCHES HAVE BEEN
  OBSERVED OR ESTIMATED BY RADAR THIS MORNING FROM SPRINGFIELD
  SOUTHEAST TO THE INTERSTATE 90 CORRIDOR.

* DUE TO RECENT RAINS THAT HAVE OCCURRED OVER THE PAST WEEK...THE
  TOP SOIL IS ALREADY SATURATED. RUNOFF FROM ADDITIONAL RAINFALL
  COULD CAUSE SOME LOCALIZE FLOODING OR RAPID RISES ALONG SOME
  MINOR RIVERS AND STREAMS. SOME STREAM BASINS THAT HAVE SEEN
  THE HIGHEST RAINFALL AMOUNTS THUS FAR TODAY INCLUDE THE EAST
  BRANCH OF THE BLUE EARTH RIVER...BRUSH CREEK...GOOSE CREEK...AND
  LIME CREEK.

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

$$
000 
WGUS63 KMPX 181950
FFAMPX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
250 PM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH EXTENDED FOR SOUTH CENTRAL MINNESOTA THROUGH
4 AM SUNDAY MORNING...

.A WARM FRONT...LOCATED JUST SOUTH OF MINNESOTA...WILL HELP TO
GENERATE MORE SHOWERS AND THUNDERSTORMS ACROSS SOUTH CENTRAL
MINNESOTA TONIGHT. RAINFALL RATES UP TO TWO INCHES PER HOUR ARE
POSSIBLE...ESPECIALLY WITHIN EMBEDDED THUNDERSTORMS. RAINFALL
AMOUNTS OF ONE AND A HALF TO THREE INCHES HAVE BEEN OBSERVED OR
ESTIMATED BY RADAR THROUGH EARLY THIS AFTERNOON FROM SPRINGFIELD
ON SOUTHEAST ACROSS THE INTERSTATE 90 CORRIDOR.

THE RAIN TODAY...IN ADDITION TO THE RAINS THAT HAVE OCCURRED OVER
THE PAST WEEK...HAVE MOISTENED THE TOP SOIL. RUNOFF FROM
ADDITIONAL RAINFALL TONIGHT MAY CAUSE FLASH FLOODING OR RAPID
RISES ALONG SOME MINOR RIVERS AND STREAMS. SOME STREAM BASINS THAT
HAVE SEEN THE HIGHEST RAINFALL AMOUNTS SO FAR TODAY INCLUDE THE
EAST BRANCH OF THE BLUE EARTH RIVER...BRUSH CREEK...GOOSE
CREEK...AND LIME CREEK.

CAMPERS AND RECREATIONAL INTERESTS SHOULD MONITOR THE LATEST
STATEMENTS...AND BE PREPARED TO TAKE ACTION IF A FLASH FLOOD
WARNING IS ISSUED.

MNZ074>077-082>085-091>093-190400-
/O.EXT.KMPX.FF.A.0002.000000T0000Z-070819T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN-NICOLLET-LE SUEUR-RICE-WATONWAN-BLUE EARTH-WASECA-STEELE-
MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...NEW ULM...ST. PETER...LE SUEUR...
FARIBAULT...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...
BLUE EARTH...ALBERT LEA
250 PM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH LATE TONIGHT...

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* A PORTION OF SOUTH CENTRAL MINNESOTA...INCLUDING THE FOLLOWING 
  AREAS...BLUE EARTH...BROWN...FARIBAULT...FREEBORN...LE SUEUR...
  MARTIN...NICOLLET...RICE...STEELE...WASECA AND WATONWAN.

* THROUGH LATE TONIGHT

* A WARM FRONT OVER IOWA WILL HELP TO FOCUS MOISTURE AND LIFT FOR
  MORE SHOWERS AND EMBEDDED THUNDERSTORMS OVER SOUTH CENTRAL
  MINNESOTA TONIGHT. RAINFALL RATES TODAY HAVE BEEN UP TO TWO
  INCHES PER HOUR...MAINLY WITHIN THE EMBEDDED THUNDERSTORMS.
  THESE RAINFALL RATES WILL BE POSSIBLE AGAIN TONIGHT. RAINFALL
  OBSERVED OR ESTIMATED BY RADAR THROUGH EARLY THIS AFTERNOON HAS
  BEEN IN THE ONE AND A HALF TO THREE INCH RANGE FROM SPRINGFIELD
  ON SOUTHEAST ACROSS THE INTERSTATE 90 CORRIDOR.

* THE RAIN TODAY...IN ADDITION TO THE RAINS THAT HAVE OCCURRED
  OVER THE PAST WEEK...HAVE MOISTENED THE TOP SOIL. RUNOFF FROM
  ADDITIONAL RAINFALL TONIGHT MAY CAUSE FLASH FLOODING OR RAPID RISES
  ALONG SOME MINOR RIVERS AND STREAMS. SOME STREAM BASINS THAT
  HAVE SEEN THE HIGHEST RAINFALL AMOUNTS SO FAR TODAY INCLUDE THE
  EAST BRANCH OF THE BLUE EARTH RIVER...BRUSH CREEK...GOOSE
  CREEK...AND LIME CREEK.

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

$$

RAH
000 
WGUS63 KMPX 190146
FFAMPX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
846 PM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH TONIGHT FOR SOUTH CENTRAL MINNESOTA INTO A
SMALL PART OF WEST CENTRAL WISCONSIN...

.A WARM FRONT...LOCATED JUST SOUTH OF MINNESOTA...WILL HELP TO
PRODUCE MORE SHOWERS AND THUNDERSTORMS ACROSS SOUTH CENTRAL INTO
SOUTHEAST MINNESOTA TONIGHT...AS WELL AS THE DURAND WISCONSIN
AREA. RAINFALL RATES UP TO TWO INCHES PER HOUR ARE POSSIBLE...
RESULTING IN SEVERAL INCHES OF RAIN IN JUST TWO OR THREE HOURS.

A LARGE BATCH OF STORMS DEVELOPED SATURDAY EVENING... FROM
SOUTHWEST MINNESOTA ACROSS TO RED WING AND DURAND. IT IS EXPECTED
THAT THE STORMS IN SOUTHWEST MINNESOTA WILL SLIDE A BIT
SOUTHWARD...THEREBY HELPING KEEP RAIN AMOUNTS FROM BECOMING
EXCESSIVE IN THE REDWOOD FALLS AREA. HOWEVER...THE STORMS WILL
LIKELY CONTINUE MOVING ACROSS CANNON FALLS...ZUMBROTA...RED
WING...PEPIN AND DURAND FOR SEVERAL MORE HOURS. THEREFORE THE
FLASH FLOOD WATCH HAS BEEN EXPANDED INTO GOODHUE AND PEPIN
COUNTIES.

MORE STORMS ARE ANTICIPATED TO DEVELOP THIS EVENING ACROSS THE
REST OF SOUTH CENTRAL MINNESOTA.

RAIN TOTALS DURING THE DAY WERE ONE TO THREE INCHES IN MANY AREAS. 
RUNOFF FROM ADDITIONAL RAINFALL TONIGHT MAY CAUSE FLASH FLOODING
OR RAPID RISES ALONG SOME MINOR RIVERS AND STREAMS. CAMPERS AND
RECREATIONAL INTERESTS SHOULD MONITOR THE LATEST STATEMENTS...AND
BE PREPARED TO TAKE ACTION IF A FLASH FLOOD WARNING IS ISSUED.

MNZ078-WIZ026-190900-
/O.EXA.KMPX.FF.A.0002.000000T0000Z-070819T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GOODHUE-PEPIN-
INCLUDING THE CITIES OF...RED WING...DURAND...PEPIN
846 PM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH IN EFFECT UNTIL 4 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS
EXPANDED THE

* FLASH FLOOD WATCH TO INCLUDE PORTIONS OF SOUTHEAST MINNESOTA AND
  WEST CENTRAL WISCONSIN...INCLUDING THE FOLLOWING COUNTIES... IN
  SOUTHEAST MINNESOTA...GOODHUE. IN WEST CENTRAL WISCONSIN...
  PEPIN.

* UNTIL 4 AM CDT SUNDAY

* LOW PRESSURE IN SOUTH DAKOTA...AND A WARM FRONT OVER NORTHERN
  IOWA...WILL HELP TO FOCUS MORE HEAVY RAIN OVER SOUTH CENTRAL
  MINNESOTA TONIGHT. RAINFALL RATES UP TO TWO INCHES PER HOUR CAN
  BE EXPECTED IN SOME AREAS.

* ONE TO THREE INCHES OF RAIN WAS COMMON DURING THE DAY ON
  SATURDAY. RUNOFF FROM ADDITIONAL RAINFALL TONIGHT MAY CAUSE
  FLASH FLOODING OR RAPID RISES ALONG SOME MINOR RIVERS AND
  STREAMS.

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

$$

MNZ074>077-082>085-091>093-190900-
/O.CON.KMPX.FF.A.0002.000000T0000Z-070819T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BROWN-NICOLLET-LE SUEUR-RICE-WATONWAN-BLUE EARTH-WASECA-STEELE-
MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...NEW ULM...ST. PETER...LE SUEUR...
FARIBAULT...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...
BLUE EARTH...ALBERT LEA
846 PM CDT SAT AUG 18 2007

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM CDT SUNDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF SOUTH CENTRAL MINNESOTA...INCLUDING THE FOLLOWING
  COUNTIES...BLUE EARTH...BROWN...FARIBAULT...FREEBORN... LE
  SUEUR... MARTIN...NICOLLET...RICE...STEELE...WASECA AND
  WATONWAN.

* UNTIL 4 AM CDT SUNDAY

* LOW PRESSURE IN SOUTH DAKOTA...AND A WARM FRONT OVER NORTHERN
  IOWA...WILL HELP TO FOCUS MORE HEAVY RAIN OVER SOUTH CENTRAL
  MINNESOTA TONIGHT. RAINFALL RATES UP TO TWO INCHES PER HOUR CAN
  BE EXPECTED IN SOME AREAS.

* ONE TO THREE INCHES OF RAIN WAS COMMON DURING THE DAY ON
  SATURDAY. RUNOFF FROM ADDITIONAL RAINFALL TONIGHT MAY CAUSE
  FLASH FLOODING OR RAPID RISES ALONG SOME MINOR RIVERS AND
  STREAMS.

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

$$
TDK

Nearby

Flash Flood Watches in Minnesota, 2007Flash Flood Watches in Wisconsin, 2007Every flash flood watch in 2007

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.