Alert archive / Minnesota / Flash Flood Warnings in 2007

Flash Flood Warning 11, NWS Twin Cities, MN

June 11, 2007Brown County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jun 11, 2007, 1:00 AM CDT for Brown County, Minnesota. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 11, 2007, 1:00 AM CDT (06:00 UTC)
Expired
Jun 11, 2007, 3:00 AM CDT
In force
2 hr
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Brown County, MN

The radar

The Minneapolis radar (KMPX), 114 km from the middle of the area, began a volume at 06:03 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, 6.0 hours before the alert went out and 112 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 2007-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 114 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2007-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939Sfc1 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
114 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
2096 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
6 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 
WGUS53 KMPX 110601
FFWMPX
MNC015-110800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
100 AM CDT MON JUN 11 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BROWN COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 300 AM CDT

* AT 100 AM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY
  RAIN ACROSS MUCH OF THE WARNED AREA. THE STORMS PRODUCING THE
  HEAVIEST RAIN WERE 3 MILES SOUTHWEST OF COBDEN...OR ABOUT 20 MILES 
  WEST OF NEW ULM. THESE STORMS WERE MOVING SLOWLY TO THE EAST       
  SOUTHEAST. ESTIMATES FROM RADAR INDICATED THAT NEARLY 3 INCHES OF  
  RAIN HAS FALLEN DURING THE PAST HOUR OVER THE WARNED AREA. EXPECT  
  ADDTIONAL SLOW MOVING THUNDERSTORMS TO PRODUCE TORRENTIAL RAINFALL 
  IN THE WARNED AREA.

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...SLEEPY EYE AND       
  SPRINGFIELD. HIGHWAY 14 BETWEEN SLEEPY EYE AND SPRINGFIELD WILL    
  ALSO BE AFFECTED.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

PLEASE REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OFFICE
AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4415 9498 4415 9466 4438 9468 4438 9486
      4428 9487 4428 9500

$$

KAT
1 follow-up statement
000 
WGUS73 KMPX 110756
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
256 AM CDT MON JUN 11 2007

MNC015-110806-
BROWN MN-
256 AM CDT MON JUN 11 2007

...THE FLASH FLOOD WARNING FOR BROWN COUNTY HAS EXPIRED...

HEAVY RAIN PRODUCING THUNDERSTORMS HAVE MOVED OUT OF BROWN COUNTY. 
THEREFORE...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE.

PLEASE REPORT ANY CURRENT OR PAST SEVERE WEATHER TO YOUR LOCAL LAW 
ENFORCEMENT OFFICE AND TELL THEM TO RELAY YOUR REPORT TO THE 
NATIONAL WEATHER SERVICE.

LAT...LON 4415 9498 4415 9466 4438 9468 4438 9486
      4428 9487 4428 9500

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 7:16 PM CDTSevere Thunderstorm WarningMPXMille Lacs44 min
Jun 10, 7:20 PM CDTSevere Thunderstorm WarningMPXChippewa, Yellow Medicine55 min
Jun 10, 7:46 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Renville59 min
Jun 10, 8:15 PM CDTSevere Thunderstorm WarningMPXYellow Medicine45 min
Jun 10, 8:38 PM CDTSevere Thunderstorm WarningMPXRedwood67 min
Jun 10, 8:45 PM CDTSevere Thunderstorm WarningMPXRenville60 min
Jun 10, 9:14 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi61 min
Jun 10, 9:55 PM CDTSevere Thunderstorm WarningMPXStevens, Swift55 min
Jun 10, 11:09 PM CDTSevere Thunderstorm WarningMPXStevens36 min
Jun 10, 11:44 PM CDTSevere Thunderstorm WarningMPXStevens33 min
Jun 11, 12:12 AM CDTSevere Thunderstorm WarningMPXRedwood38 min
Jun 11, 12:22 AM CDTSevere Thunderstorm WarningMPXDouglas53 min
Jun 11, 12:40 AM CDTFlash Flood WarningMPXRedwood2 hr
Jun 11, 1:14 AM CDTSevere Thunderstorm WarningMPXDouglas31 min
Jun 11, 2:21 AM CDTSevere Thunderstorm WarningMPXRenville21 min
Jun 11, 2:32 AM CDTSevere Thunderstorm WarningMPXKandiyohi11 min
Jun 11, 2:39 AM CDTSevere Thunderstorm WarningMPXStearns32 min

Nearby

Flash Flood Warnings in Minnesota, 2007Every flash flood warning 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.