Alert archive / Minnesota / Flash Flood Watches in 2007
Flash Flood Watch 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood watch at Aug 20, 2007, 4:10 AM CDT for 15 counties in Minnesota. It took effect at Aug 20, 2007, 6:00 AM CDT. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Aug 20, 2007, 4:10 AM CDT (09:10 UTC)
- In effect from
- Aug 20, 2007, 6:00 AM CDT
- Expired
- Aug 21, 2007, 3:29 AM CDT
- In force
- 21 hr
- Issued by
- NWS Twin Cities, MN
- Flood severity
- None
Counties Blue Earth County, MN, Brown County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Le Sueur County, MN, Martin County, MN, Nicollet County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Sibley County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN
The radar
The Minneapolis radar (KMPX), 84 km from the middle of the area, began a volume at 09:10 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, 9.2 hours before the alert went out and 83 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
- 514 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS63 KMPX 200910 FFAMPX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 410 AM CDT MON AUG 20 2007 ...ADDITIONAL RAINFALL AND ATTENDANT FLOODING POSSIBLE ACROSS PORTIONS OF CENTRAL AND SOUTH CENTRAL MINNESOTA THROUGH TONIGHT... .ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS WILL OCCUR TODAY AND TONIGHT ACROSS CENTRAL AND SOUTH CENTRAL MINNESOTA...AS A FRONTAL SYSTEM MOVES ACROSS THE AREA. RADAR ESTIMATES INDICATE THAT 6 TO 8 INCHES OF RAIN...WITH ISOLATED HIGHER AMOUNTS...FELL OVER THE WEEKEND...GENERALLY ALONG AND SOUTH OF A REDWOOD FALLS TO LE SUEUR AND GOODHUE LINE. THUNDERSTORMS ARE EXPECTED TO PRODUCE AN ADDITIONAL 1 TO 2 INCHES OF RAIN OVER THIS SAME AREA...WHICH MAY LEAD TO FLOODING. THIS WATCH INCLUDES THE INTERSTATE 90 CORRIDOR BETWEEN FAIRMONT AND ALBERT LEA...AS WELL AS INTERSTATE 35 FROM FARIBAULT TO THE IOWA BORDER. MNZ065-067-073>078-082>085-091>093-201715- /O.NEW.KMPX.FF.A.0004.070820T1100Z-070821T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ RENVILLE-SIBLEY-REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE- WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN- INCLUDING THE CITIES OF...OLIVIA...GAYLORD...REDWOOD FALLS... NEW ULM...ST. PETER...LE SUEUR...FARIBAULT...RED WING... ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...BLUE EARTH... ALBERT LEA 410 AM CDT MON AUG 20 2007 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL MINNESOTA...SOUTH CENTRAL MINNESOTA...SOUTHEAST MINNESOTA AND SOUTHWEST MINNESOTA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL MINNESOTA...RENVILLE AND SIBLEY. IN SOUTH CENTRAL MINNESOTA... BLUE EARTH...BROWN...FARIBAULT...FREEBORN...LE SUEUR... MARTIN...NICOLLET...RICE...STEELE...WASECA AND WATONWAN. IN SOUTHEAST MINNESOTA...GOODHUE. IN SOUTHWEST MINNESOTA... REDWOOD. * THROUGH LATE TONIGHT * ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS WILL OCCUR TODAY AND TONIGHT ACROSS CENTRAL AND SOUTH CENTRAL MINNESOTA...AS A FRONTAL SYSTEM MOVES ACROSS THE AREA. RADAR ESTIMATES INDICATE THAT 6 TO 8 INCHES OF RAIN...WITH ISOLATED HIGHER AMOUNTS...FELL OVER THE WEEKEND...GENERALLY ALONG AND SOUTH OF A REDWOOD FALLS TO LE SUEUR AND GOODHUE LINE. THUNDERSTORMS ARE EXPECTED TO PRODUCE AN ADDITIONAL 1 TO 2 INCHES OF RAIN OVER THIS SAME AREA...WHICH MAY LEAD TO FLOODING. THIS WATCH INCLUDES THE INTERSTATE 90 CORRIDOR BETWEEN FAIRMONT AND ALBERT LEA...AS WELL AS INTERSTATE 35 FROM FARIBAULT TO THE IOWA BORDER. A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. $$ LS
3 follow-up statements
000 WGUS63 KMPX 201714 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1214 PM CDT MON AUG 20 2007 ...MORE RAIN WITH ATTENDANT FLOODING POSSIBLE ACROSS PORTIONS OF CENTRAL AND SOUTH CENTRAL MINNESOTA THIS AFTERNOON AND TONIGHT... .SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER CENTRAL AND SOUTHERN MINNESOTA THIS AFTERNOON AND TONIGHT...AS A TROUGH OF LOW PRESSURE APPROACHES FROM THE DAKOTAS. WITH THE GROUND SATURATED WITH BETWEEN 4 AND 8 INCHES OF RAIN THAT FELL OVER WEEKEND...ADDITIONAL RAINFALL THIS AFTERNOON AND TONIGHT OF 1 TO 2 INCHES OVER THIS SAME AREA MAY LEAD TO FLOODING. THE FLASH FLOOD WATCH IS ALONG AND SOUTH OF A LINE FROM OLIVIA TO RED WING. MNZ065-067-073>078-082>085-091>093-210115- /O.CON.KMPX.FF.A.0004.000000T0000Z-070821T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ RENVILLE-SIBLEY-REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE- WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN- INCLUDING THE CITIES OF...OLIVIA...GAYLORD...REDWOOD FALLS... NEW ULM...ST. PETER...LE SUEUR...FARIBAULT...RED WING... ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...BLUE EARTH... ALBERT LEA 1214 PM CDT MON AUG 20 2007 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL MINNESOTA...SOUTH CENTRAL MINNESOTA... SOUTHEAST MINNESOTA AND SOUTHWEST MINNESOTA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL MINNESOTA...RENVILLE AND SIBLEY. IN SOUTH CENTRAL MINNESOTA...BLUE EARTH...BROWN...FARIBAULT... FREEBORN...LE SUEUR...MARTIN...NICOLLET...RICE...STEELE... WASECA AND WATONWAN. IN SOUTHEAST MINNESOTA...GOODHUE. IN SOUTHWEST MINNESOTA...REDWOOD. * THROUGH LATE TONIGHT * SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER CENTRAL AND SOUTHERN MINNESOTA THIS AFTERNOON AND TONIGHT...AS A TROUGH OF LOW PRESSURE APPROACHES FROM THE DAKOTAS. WITH THE GROUND SATURATED WITH BETWEEN 4 AND 8 INCHES OF RAIN THAT FELL OVER WEEKEND...ADDITIONAL RAINFALL THIS AFTERNOON AND TONIGHT OF 1 TO 2 INCHES OVER THIS SAME AREA MAY LEAD TO FLOODING. THE FLASH FLOOD WATCH IS ALONG AND SOUTH OF A LINE FROM OLIVIA TO RED WING. A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. $$
000 WGUS63 KMPX 210112 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 812 PM CDT MON AUG 20 2007 ...MORE RAIN WITH ATTENDANT FLOODING POSSIBLE ACROSS SOUTH CENTRAL MINNESOTA TONIGHT... .AS A LOW PRESSURE CENTER MOVES EASTWARD FROM SOUTHEAST SOUTH DAKOTA...SCATTERED SHOWERS AND THUNDERSTORMS WILL LIKELY DEVELOP ACROSS SOUTHWEST AND SOUTH CENTRAL MINNESOTA THROUGH THE EARLY OVERNIGHT HOURS. WITH THE EXTREMELY SATURATED GROUND DUE TO 4 TO 8 INCHES OF RAINFALL OVER THE WEEKEND...ADDITIONAL RAINFALL TONIGHT MAY LEAD TO FLASH FLOODING IN SOUTH CENTRAL MINNESOTA. THE HIGHEST RISK WILL BE UNDERNEATH TRAINING THUNDERSTORMS. THE FLASH FLOOD WATCH IS ALONG AND SOUTH OF A LINE FROM OLIVIA TO RED WING. THIS ENCOMPASSES SEVERAL BASINS OF SMALLER STREAMS THAT ARE SUSCEPTIBLE TO QUICK RISES AND POTENTIAL FLOODING. THESE INCLUDE THE BLUE EARTH RIVER...LITTLE CANNON RIVER...STRAIGHT RIVER...WATONWAN RIVER...AND THE NORTH FORK OF THE ZUMBRO RIVER. SEVERAL OF THESE STREAMS ARE ALREADY RUNNING HIGH DUE TO THE RAINFALL LAST WEEKEND. MNZ065-067-073>078-082>085-091>093-210900- /O.CON.KMPX.FF.A.0004.000000T0000Z-070821T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ RENVILLE-SIBLEY-REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE- WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN- INCLUDING THE CITIES OF...OLIVIA...GAYLORD...REDWOOD FALLS... NEW ULM...ST. PETER...LE SUEUR...FARIBAULT...RED WING... ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...BLUE EARTH... ALBERT LEA 812 PM CDT MON AUG 20 2007 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM CDT TUESDAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...INCLUDING THE FOLLOWING AREAS...IN CENTRAL MINNESOTA...RENVILLE AND SIBLEY. IN SOUTH CENTRAL MINNESOTA...BLUE EARTH...BROWN...FARIBAULT... FREEBORN...LE SUEUR...MARTIN...NICOLLET...RICE...STEELE... WASECA AND WATONWAN. IN SOUTHEAST MINNESOTA...GOODHUE. IN SOUTHWEST MINNESOTA...REDWOOD. * UNTIL 4 AM CDT TUESDAY * AS A LOW PRESSURE CENTER MOVES EASTWARD FROM SOUTHEAST SOUTH DAKOTA...SCATTERED SHOWERS AND THUNDERSTORMS WILL LIKELY DEVELOP ACROSS SOUTHWEST AND SOUTH CENTRAL MINNESOTA THROUGH THE EARLY OVERNIGHT HOURS. WITH THE EXTREMELY SATURATED GROUND DUE TO 4 TO 8 INCHES OF RAINFALL OVER THE WEEKEND...ADDITIONAL RAINFALL TONIGHT MAY LEAD TO FLASH FLOODING IN SOUTH CENTRAL MINNESOTA. THE HIGHEST RISK WILL BE UNDERNEATH TRAINING THUNDERSTORMS. * THE FLASH FLOOD WATCH IS ALONG AND SOUTH OF A LINE FROM OLIVIA TO RED WING. THIS ENCOMPASSES SEVERAL BASINS OF SMALLER STREAMS THAT ARE SUSCEPTIBLE TO QUICK RISES AND POTENTIAL FLOODING. THESE INCLUDE THE BLUE EARTH RIVER...LITTLE CANNON RIVER...STRAIGHT RIVER...WATONWAN RIVER...AND THE NORTH FORK OF THE ZUMBRO RIVER. SEVERAL OF THESE STREAMS ARE ALREADY RUNNING HIGH DUE TO THE RAINFALL LAST WEEKEND. A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS AND LIFE THREATENING SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. $$
000 WGUS63 KMPX 210829 FFAMPX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 329 AM CDT TUE AUG 21 2007 ...ANOTHER ROUND OF HEAVY RAINFALL WITH ATTENDANT FLOODING IS POSSIBLE ACROSS SOUTH CENTRAL MINNESOTA TONIGHT... .SHOWERS AND THUNDERSTORMS WILL LIKELY RE-DEVELOP LATE THIS AFTERNOON THROUGH TONIGHT IN THE VICINITY OF A FRONTAL BOUNDARY. THIS ADDITIONAL RAINFALL MAY LEAD TO FLASH FLOODING IN PORTIONS OF SOUTH CENTRAL MINNESOTA....WHERE 4 TO 8 INCHES OF RAIN FELL OVER THE WEEKEND. THE HIGHEST RISK WILL BE UNDERNEATH TRAINING THUNDERSTORMS...WHERE RAINFALL AMOUNTS EXCEEDING 1 TO 2 INCHES WILL BE POSSIBLE. RUNOFF FROM ADDITIONAL RAINFALL MAY ALSO CAUSE FLASH FLOODING OR RAPID RISES ALONG SOME MINOR RIVERS AND STREAMS. THE FLASH FLOOD WATCH INCLUDES LOCATIONS ALONG INTERSTATE 35 FROM MEDFORD SOUTHWARD TO THE IOWA BORDER...AS WELL AS FAIRMONT AND ALBERT LEA ALONG INTERSTATE 90. MNZ084-085-091>093-211630- /O.CAN.KMPX.FF.A.0004.000000T0000Z-070821T0900Z/ /O.NEW.KMPX.FF.A.0005.070822T0000Z-070822T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN- INCLUDING THE CITIES OF...WASECA...OWATONNA...FAIRMONT... BLUE EARTH...ALBERT LEA 329 AM CDT TUE AUG 21 2007 ...FLASH FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY MORNING... ...FLASH FLOOD WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A * FLASH FLOOD WATCH FOR A PORTION OF SOUTH CENTRAL MINNESOTA... INCLUDING THE FOLLOWING AREAS...FARIBAULT...FREEBORN... MARTIN...STEELE AND WASECA. * FROM THIS EVENING THROUGH WEDNESDAY MORNING * SHOWERS AND THUNDERSTORMS WILL LIKELY RE-DEVELOP LATE THIS AFTERNOON THROUGH TONIGHT IN THE VICINITY OF A FRONTAL BOUNDARY. THIS ADDITIONAL RAINFALL MAY LEAD TO FLASH FLOODING IN SOUTH CENTRAL MINNESOTA....WHERE 4 TO 8 INCHES OF RAIN FELL OVER THE WEEKEND. THE HIGHEST RISK WILL BE UNDERNEATH TRAINING THUNDERSTORMS...WHERE RAINFALL AMOUNTS EXCEEDING 1 TO 2 INCHES WILL BE POSSIBLE. * THE FLASH FLOOD WATCH INCLUDES LOCATIONS ALONG INTERSTATE 35 FROM MEDFORD SOUTHWARD TO THE IOWA BORDER...AS WELL AS FAIRMONT AND ALBERT LEA ALONG INTERSTATE 90. RUNOFF FROM ADDITIONAL RAINFALL MAY ALSO CAUSE FLASH FLOODING OR RAPID RISES ALONG SOME MINOR RIVERS AND STREAMS. A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. $$ MNZ065-067-073>078-082-083-210930- /O.CAN.KMPX.FF.A.0004.000000T0000Z-070821T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ RENVILLE-SIBLEY-REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE- WATONWAN-BLUE EARTH- INCLUDING THE CITIES OF...OLIVIA...GAYLORD...REDWOOD FALLS... NEW ULM...ST. PETER...LE SUEUR...FARIBAULT...RED WING... ST. JAMES...MANKATO 329 AM CDT TUE AUG 21 2007 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND SOUTH CENTRAL MINNESOTA HAS HAS BEEN CANCELED. WHILE THE IMMEDIATE THREAT FOR FLASH FLOODING HAS ENDED...ADDITIONAL RAINFALL IS EXPECTED THIS EVENING AND TONIGHT. STAY TUNED TO FUTURE FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FUTURE FLASH FLOOD WATCHES BE ISSUED. $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 5:10 AM CDT | Flash Flood Warning | MPX | Martin | 4 hr |
| Aug 20, 9:06 AM CDT | Flash Flood Warning | MPX | Martin | 3 hr |
Nearby
Flash Flood Watches in Minnesota, 2007Every flash 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.