Alert archive / Minnesota / Flash Flood Warnings in 2007
Flash Flood Warning 24, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Aug 19, 2007, 12:04 PM CDT for Watonwan County, Minnesota. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 19, 2007, 12:04 PM CDT (17:04 UTC)
- Expired
- Aug 19, 2007, 3:00 PM CDT
- In force
- 3 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 17:07 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 19, 1:26 PM CDT | FLASH FLOOD | St James, MN | AS MUCH AS 2 TO 3 FEET OF WATER REPORTED ACROSS STREETS IN TOWN. AROUND 4 FEET OF WATER BENEATH AN UNDERPASS ON 1ST AVENUE SOUTH ALSO IN TOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 5.1 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
- 510 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KMPX 191704 FFWMPX MNC165-192000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1204 PM 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 300 PM CDT * AT NOON CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MUCH OF THE WARNED AREA. THE STORMS PRODUCING THE HEAVIEST RAIN STRETCHED FROM DARFUR TO ST JAMES. THE STORMS WERE MOVING VERY SLOWLY TO THE EAST. RAINFALL AMOUNTS UP TO 2 INCHES AN HOUR ARE LIKELY. EXPECT ADDITIONAL THUNDERSTORMS TO REDEVELOP AND PASS OVER THE WARNED AREA... RESULTING IN EXCESSIVE RAINFALL. * SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...DARFUR...BUTTERFIELD ST JAMES...LA SALLE...GROGAN AND MADELIA. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. LAT...LON 4387 9484 4387 9437 4409 9439 4409 9486 $$
1 follow-up statement
000 WGUS73 KMPX 191840 FFSMPX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 140 PM CDT SUN AUG 19 2007 MNC165-192000- WATONWAN MN- 140 PM CDT SUN AUG 19 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR WATONWAN COUNTY... AT 138 PM CDT...RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MUCH OF THE WARNED AREA. THE STORMS PRODUCING THE HEAVIEST RAIN WERE OVER ST JAMES. THESE STORMS WERE MOVING SLOWLY TO THE EAST. EXPECT ADDITIONAL SLOW MOVING THUNDERSTORMS TO PRODUCE TORRENTIAL RAINFALL IN THE WARNED AREA THROUGH MID AFTERNOON. AT 126 PM...A SEVERE WEATHER SPOTTER REPORTED AROUND 4 FEET OF WATER BENEATH AN UNDERPASS ON 1ST AVENUE SOUTH IN ST JAMES. AS MUCH AS 2 TO 3 FEET OF WATER WAS REPORTED ON SOME STREETS IN ST JAMES AS WELL. IN ADDITION...A WEATHER SPOTTER IN THE FAR NORTHWEST CORNER OF WATONWAN COUNTY MEASURED 1.1 INCHES OF RAIN IN 15 MINUTES. SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...BUTTERFIELD...DARFUR... LA SALLE...LEWISVILLE...MADELIA...ECHOLS AND GROGAN. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO FORGE FLOODED ROADWAYS BY FOOT OR AUTOMOBILE. IF YOUR VEHICLE STALLS... ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. LAT...LON 4387 9484 4387 9437 4409 9439 4409 9486 $$ RAH
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, 3:04 AM CDT | Flash Flood Warning | MPX | Watonwan | 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, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.