Alert archive / Minnesota / Flash Flood Warnings in 2007
Flash Flood Warning 23, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Aug 19, 2007, 3:04 AM CDT for Watonwan County, Minnesota. It was in force for 6 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
- Aug 19, 2007, 3:04 AM CDT (08:04 UTC)
- Expired
- Aug 19, 2007, 9:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 128 km from the middle of the area, began a volume at 08:07 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, 8.1 hours before the alert went out and 126 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 232 m²/s²
- 0-3 km storm-relative helicity
- 510 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KMPX 190807 FFWMPX MNC165-191400- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 304 AM CDT SUN AUG 19 2007 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A * FLASH FLOOD WARNING FOR... WATONWAN COUNTY IN SOUTH CENTRAL MINNESOTA... * UNTIL 845 AM CDT * AT 304 AM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MUCH OF THE WARNED AREA. THE STORMS PRODUCING THE HEAVIEST RAIN WERE OVER GROGAN...OR ABOUT 5 MILES NORTHEAST OF ST JAMES. THESE STORMS WERE MOVING SLOWLY SOUTH SOUTHEAST. RAINFALL RATES REMAIN HIGH...1 TO 2 INCHES AN HOUR...IN THE LINE OF STORMS. ANY ADDITIONAL RAIN WILL RAPIDLY RUNOFF...BECAUSE OF THE SATURATED GROUND CAUSED BY THE 3 TO 5 INCHES OF RAIN THAT HAS ALREADY FALLEN... OVER THE LAST 18 HOURS. * SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...BUTTERFIELD...MADELIA AND ST JAMES. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD. JUST ONE FOOT OF RUSHING WATER CAN SWEEP MOST VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. LAT...LON 4410 9484 4385 9480 4386 9438 4411 9439 $$ DWE
1 follow-up statement
000 WGUS73 KMPX 191315 FFSMPX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 814 AM CDT SUN AUG 19 2007 MNC165-191324- WATONWAN MN- 814 AM CDT SUN AUG 19 2007 ...THE FLASH FLOOD WARNING FOR WATONWAN COUNTY HAS BEEN CANCELLED... RADAR INDICATED THAT RAINFALL WAS ENDING ACROSS THE WARNED AREA... AND THE FLOOD THREAT WAS DIMINISHING. THEREFORE...THE FLASH FLOOD WARNING FOR WATONWAN COUNTY HAS BEEN CANCELLED. LAT...LON 4410 9484 4385 9480 4386 9438 4411 9439 $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 10:00 PM CDT | Flash Flood Warning | MPX | Goodhue | 6 hr |
| Aug 18, 10:50 PM CDT | Flash Flood Warning | MPX | Le Sueur, Nicollet, Rice, Sibley | 6 hr |
| Aug 19, 12:50 AM CDT | Flash Flood Warning | MPX | Steele, Waseca | 4 hr |
| Aug 19, 12:50 AM CDT | Flash Flood Warning | MPX | Blue Earth, Steele, Waseca | 4 hr |
| Aug 19, 1:18 AM CDT | Flash Flood Warning | MPX | Brown, Redwood, Renville | 6 hr |
| Aug 19, 2:48 AM CDT | Flash Flood Warning | MPX | Faribault, Freeborn | 6 hr |
| Aug 19, 8:53 AM CDT | Flash Flood Watch | MPX | Blue Earth, Brown, Faribault, Freeborn, Goodhue, Le Sueur and 9 more | 16 hr |
| Aug 19, 12:04 PM CDT | Flash Flood Warning | MPX | Watonwan | 3 hr |
| Aug 19, 2:48 PM CDT | Flash Flood Warning | MPX | Watonwan | 3 hr |
| Aug 19, 6:20 PM CDT | Flash Flood Warning | MPX | Faribault | 115 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.