Alert archive / Minnesota / Flood Watches in 2007

Flood Watch 3, NWS Twin Cities, MN

May 6, 20079 counties in Minnesota

NWS Twin Cities, MN issued this flood watch at May 6, 2007, 11:48 AM CDT for 9 counties in Minnesota. It took effect at May 6, 2007, 7:00 PM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
May 6, 2007, 11:48 AM CDT (16:48 UTC)
In effect from
May 6, 2007, 7:00 PM CDT
Expired
May 7, 2007, 3:56 AM CDT
In force
9 hr
Issued by
NWS Twin Cities, MN

Counties Blue Earth County, MN, Brown County, MN, Faribault County, MN, Martin County, MN, Nicollet County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 105 km from the middle of the area, began a volume at 16:51 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, 4.8 hours before the alert went out and 103 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 2007-05-06Temperature 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 12:00Z on 2007-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 381 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
1733 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
381 m²/s²
0-3 km storm-relative helicity
369 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 061648
FFAMPX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1148 AM CDT SUN MAY 6 2007

...FLOOD WATCH NOW IN EFFECT FOR TONIGHT...

.THE FLOOD WATCH FOR PORTIONS OF SOUTHWEST AND SOUTH CENTRAL
MINNESOTA...THAT WAS IN EFFECT FOR TODAY...HAS BEEN CANCELLED...
AS THE THREAT FOR HEAVY RAIN HAS ENDED FOR THE TIME BEING.
HOWEVER...HEAVY RAIN IS POSSIBLE TONIGHT FOR THE SAME
AREA...ROUGHLY ALONG AND SOUTHWEST OF A LINE...FROM OLIVIA THROUGH
MANKATO TO KIESTER...AS A LOW PRESSURE SYSTEM AND COLD FRONT
APPROACH FROM THE WEST. RAINFALL ACROSS THE AREA EARLY SUNDAY
MORNING WAS IN THE ONE TO TWO INCH RANGE. THERE COULD 2 TO 3
INCHES OF RAIN OCCUR TONIGHT...HENCE THE FLOOD WATCH.

MNZ065-067-073>075-082-083-091-092-070100-
/O.CAN.KMPX.FA.A.0002.000000T0000Z-070507T0000Z/
/O.NEW.KMPX.FA.A.0003.070507T0000Z-070507T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RENVILLE-SIBLEY-REDWOOD-BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-
FARIBAULT-
INCLUDING THE CITIES OF...OLIVIA...GAYLORD...REDWOOD FALLS...
NEW ULM...ST. PETER...ST. JAMES...MANKATO...FAIRMONT...BLUE EARTH
1148 AM CDT SUN MAY 6 2007

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

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

* FLOOD WATCH FOR PORTIONS OF CENTRAL MINNESOTA...SOUTH CENTRAL 
  MINNESOTA AND SOUTHWEST MINNESOTA...INCLUDING THE FOLLOWING 
  AREAS...IN CENTRAL MINNESOTA...RENVILLE AND SIBLEY. IN SOUTH 
  CENTRAL MINNESOTA...BLUE EARTH...BROWN...FARIBAULT...MARTIN...
  NICOLLET AND WATONWAN. IN SOUTHWEST MINNESOTA...REDWOOD.

* FROM 7 PM CDT THIS EVENING THROUGH MONDAY MORNING.

* SHOWERS AND THUNDERSTORMS TONIGHT COULD BRING 2 TO 3 INCHES OF
  RAIN TO THE AREA. THIS WOULD BE ON TOP OF THE ONE TO 2 INCHES OF
  RAIN THAT FELL EARLY SUNDAY MORNING...LEADING TO POTENTIAL
  FLOODING.

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

$$

RAH
2 follow-up statements
000 
WGUS63 KMPX 070053
FFAMPX

FLOOD WATCH
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
753 PM CDT SUN MAY 6 2007

...FLOOD WATCH IN EFFECT FOR TONIGHT...

.HEAVY RAIN IS POSSIBLE TONIGHT ACROSS AREAS ROUGHLY ALONG AND
SOUTHWEST OF A LINE...FROM OLIVIA THROUGH MANKATO TO KIESTER...AS
A LOW PRESSURE SYSTEM AND COLD FRONT APPROACH FROM THE WEST.
RAINFALL ACROSS THE AREA EARLY SUNDAY MORNING WAS IN THE ONE TO
TWO INCH RANGE. THERE COULD 2 TO 3 INCHES OF RAIN OCCUR
TONIGHT...HENCE THE FLOOD WATCH.

MNZ065-067-073>075-082-083-091-092-070900-
/O.CON.KMPX.FA.A.0003.000000T0000Z-070507T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RENVILLE-SIBLEY-REDWOOD-BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-
FARIBAULT-
INCLUDING THE CITIES OF...OLIVIA...GAYLORD...REDWOOD FALLS...
NEW ULM...ST. PETER...ST. JAMES...MANKATO...FAIRMONT...BLUE EARTH
753 PM CDT SUN MAY 6 2007

...FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF CENTRAL MINNESOTA...SOUTH CENTRAL MINNESOTA AND 
  SOUTHWEST MINNESOTA...INCLUDING THE FOLLOWING AREAS...IN 
  CENTRAL MINNESOTA...RENVILLE AND SIBLEY. IN SOUTH CENTRAL 
  MINNESOTA...BLUE EARTH...BROWN...FARIBAULT...MARTIN...NICOLLET 
  AND WATONWAN. IN SOUTHWEST MINNESOTA...REDWOOD.

* UNTIL 7 AM CDT MONDAY

* SHOWERS AND THUNDERSTORMS TONIGHT COULD BRING 2 TO 3 INCHES OF
  RAIN TO THE AREA. THIS WOULD BE ON TOP OF THE ONE TO 2 INCHES OF
  RAIN THAT FELL EARLY SUNDAY MORNING...LEADING TO POTENTIAL
  FLOODING.


A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

$$

KAT/RAH
000 
WGUS63 KMPX 070856 AAA
FFAMPX

FLOOD WATCH...UPDATED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
356 AM CDT MON MAY 7 2007

...FLOOD WATCH CANCELLED FOR PART OF SOUTH CENTRAL AND SOUTHWEST
MINNESOTA CANCELLED...

.AN INADEQUATE SUPPLY OF LOWER ATMOSPHERIC MOISTURE HAS PREVENTED
THE DEVELOPMENT OF HEAVY RAINFALL OVER SOUTHERN MINNESOTA EARLY
THIS MONDAY.

MNZ065-067-073>075-082-083-091-092-071000-
/O.CAN.KMPX.FA.A.0003.000000T0000Z-070507T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RENVILLE-SIBLEY-REDWOOD-BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-
FARIBAULT-
INCLUDING THE CITIES OF...OLIVIA...GAYLORD...REDWOOD FALLS...
NEW ULM...ST. PETER...ST. JAMES...MANKATO...FAIRMONT...BLUE EARTH
356 AM CDT MON MAY 7 2007

...FLOOD WATCH IS CANCELLED...

THE FLOOD WATCH FOR PORTIONS OF CENTRAL MINNESOTA...SOUTH CENTRAL
MINNESOTA AND SOUTHWEST MINNESOTA HAS BEEN CANCELLED. 

SOUTHEAST AIRFLOW FROM HIGH PRESSURE EAST OF THE REGION HAS
CONTINUED TO FEED AIR WITH LOWER DEW-POINT TEMPERATURES INTO THE
REGION. MUCH OF ANY PRECIPITATION THAT HAS DEVELOPED OVER THE PAST
SEVERAL HOURS APPEARS TO BE EVAPORATING BEFORE REACHING THE
SURFACE. THEREFORE...HEAVY RAINFALL POTENTIAL IS EXPECTED TO REMAIN
SOUTH OF THE AREA.


$$
WET/MDB

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 12:23 AM CDTWind AdvisoryMPXBlue Earth, Brown, Chippewa, Douglas, Faribault, Freeborn and 13 more4 hr
May 6, 4:10 AM CDTWind AdvisoryMPXBlue Earth, Brown, Faribault, Freeborn, Martin, Nicollet and 3 more5 hr
May 6, 6:29 AM CDTFlood WatchMPXBlue Earth, Brown, Faribault, Martin, Nicollet, Redwood and 3 more5 hr
May 6, 8:40 AM CDTHigh Wind WarningMPXBlue Earth, Brown, Carver, Chippewa, Dakota, Douglas and 24 more4 hr
May 6, 11:52 AM CDTWind AdvisoryMPXBlue Earth, Brown, Carver, Chippewa, Dakota, Douglas and 24 more8 hr

Nearby

Flood Watches in Minnesota, 2007Every 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.