Alert archive / Minnesota / Flash Flood Warnings in 2007

Flash Flood Warning 10, NWS Twin Cities, MN

June 11, 2007Redwood County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jun 11, 2007, 12:40 AM CDT for Redwood 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, 12:40 AM CDT (05:40 UTC)
Expired: Jun 11, 2007, 2:45 AM CDT
In force: 2 hr
Issued by: NWS Twin Cities, MN
Area: Whole counties

County Redwood County, MN

The radar

The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 05:42 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, 5.7 hours before the alert went out and 140 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 110540
FFWMPX
MNC127-110745-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1240 AM CDT MON JUN 11 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN REDWOOD COUNTY IN SOUTHWEST MINNESOTA...

* UNTIL 245 AM CDT

* AT 1240 AM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY
  RAIN ACROSS MUCH OF THE WARNED AREA. THE STORMS PRODUCING THE
  HEAVIEST RAIN WERE 7 MILES SOUTH OF MORGAN...OR ABOUT 18 MILES     
  SOUTHEAST OF REDWOOD FALLS. THESE STORMS WERE MOVING SLOWLY TO THE 
  EAST. ESTIMATES FROM RADAR INDICATED THAT NEARLY 3 INCHES OF RAIN  
  HAS FALLEN DURING THE PAST HOUR OVER THE WARNED AREA. EXPECT       
  ADDITIONAL THUNDERSTORMS TO REDEVELOP AND PASS OVER THE WARNED     
  AREA...RESULTING IN EXCESSIVE RAINFALL.

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 4429 9514 4429 9488 4450 9490 4449 9514

$$

KAT

1 follow-up statement

000 
WGUS73 KMPX 110738
FFSMPX

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

MNC127-110747-
REDWOOD MN-
237 AM CDT MON JUN 11 2007

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

HEAVY RAIN PRODUCING THUNDERSTORMS HAVE MOVED OUT OF REDWOOD 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 4429 9514 4429 9488 4450 9490 4449 9514

$$

KAT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 7:16 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs	44 min
Jun 10, 7:20 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Yellow Medicine	55 min
Jun 10, 7:46 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	59 min
Jun 10, 8:15 PM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	45 min
Jun 10, 8:38 PM CDT	Severe Thunderstorm Warning	MPX	Redwood	67 min
Jun 10, 8:45 PM CDT	Severe Thunderstorm Warning	MPX	Renville	60 min
Jun 10, 9:14 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi	61 min
Jun 10, 9:55 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	55 min
Jun 10, 11:09 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	36 min
Jun 10, 11:44 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	33 min
Jun 11, 12:12 AM CDT	Severe Thunderstorm Warning	MPX	Redwood	38 min
Jun 11, 12:22 AM CDT	Severe Thunderstorm Warning	MPX	Douglas	53 min
Jun 11, 1:00 AM CDT	Flash Flood Warning	MPX	Brown	2 hr
Jun 11, 1:14 AM CDT	Severe Thunderstorm Warning	MPX	Douglas	31 min
Jun 11, 2:21 AM CDT	Severe Thunderstorm Warning	MPX	Renville	21 min
Jun 11, 2:32 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	11 min
Jun 11, 2:39 AM CDT	Severe Thunderstorm Warning	MPX	Stearns	32 min

Nearby

Flash Flood Warnings in Minnesota, 2007 Every 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.