Alert archive / Minnesota / Flash Flood Watches in 2007
Flash Flood Watch 5, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood watch at Aug 21, 2007, 3:29 AM CDT for 5 counties in Minnesota. It took effect at Aug 21, 2007, 7:00 PM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2007, 3:29 AM CDT (08:29 UTC)
- In effect from
- Aug 21, 2007, 7:00 PM CDT
- Expired
- Aug 22, 2007, 1:40 AM CDT
- In force
- 7 hr
- Issued by
- NWS Twin Cities, MN
Counties Faribault County, MN, Freeborn County, MN, Martin County, MN, Steele County, MN, Waseca County, MN
The radar
The Minneapolis radar (KMPX), 116 km from the middle of the area, began a volume at 08:31 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, 8.5 hours before the alert went out and 116 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
- 62 J/kg
- Mixed-layer CIN
- -345 J/kg
- Mixed-layer LCL
- 520 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
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. $$ MNZ065-067-073>078-082-083-210930- /O.CAN.KMPX.FF.A.0004.000000T0000Z-070821T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ RENVILLE-SIBLEY-REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE- WATONWAN-BLUE EARTH- INCLUDING THE CITIES OF...OLIVIA...GAYLORD...REDWOOD FALLS... NEW ULM...ST. PETER...LE SUEUR...FARIBAULT...RED WING... ST. JAMES...MANKATO 329 AM CDT TUE AUG 21 2007 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF CENTRAL AND SOUTH CENTRAL MINNESOTA HAS HAS BEEN CANCELED. WHILE THE IMMEDIATE THREAT FOR FLASH FLOODING HAS ENDED...ADDITIONAL RAINFALL IS EXPECTED THIS EVENING AND TONIGHT. STAY TUNED TO FUTURE FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FUTURE FLASH FLOOD WATCHES BE ISSUED. $$
4 follow-up statements
000 WGUS63 KMPX 210918 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 418 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>093-211730- /O.CON.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 418 AM CDT TUE AUG 21 2007 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY MORNING... THE FLASH FLOOD WATCH CONTINUES 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. $$
000 WGUS63 KMPX 211841 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 141 PM CDT TUE AUG 21 2007 ...HEAVY RAINFALL WITH ATTENDANT FLOODING REMAINS POSSIBLE ACROSS SOUTH CENTRAL MINNESOTA TONIGHT... .SHOWERS AND THUNDERSTORMS WILL ARE STILL EXPECTED TO REDEVELOP THIS EVENING OVER FAR SOUTHERN MINNESOTA IN THE VICINITY OF A STALLED FRONTAL BOUNDARY ACROSS IOWA. 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. 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>093-220245- /O.CON.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 141 PM CDT TUE AUG 21 2007 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH WEDNESDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTH CENTRAL MINNESOTA...INCLUDING THE FOLLOWING AREAS...FARIBAULT...FREEBORN...MARTIN...STEELE AND WASECA. * FROM 7 PM CDT THIS EVENING THROUGH WEDNESDAY MORNING * SHOWERS AND THUNDERSTORMS WILL ARE STILL EXPECTED TO REDEVELOP THIS EVENING OVER FAR SOUTHERN MINNESOTA IN THE VICINITY OF A STALLED FRONTAL BOUNDARY ACROSS IOWA. 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. * 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. $$
000 WGUS63 KMPX 220237 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 937 PM CDT TUE AUG 21 2007 ...HEAVY RAINFALL WITH ATTENDANT FLOODING REMAINS POSSIBLE ACROSS SOUTH CENTRAL MINNESOTA TONIGHT... .SHOWERS AND THUNDERSTORMS WILL TRACK NORTHEAST ACROSS PORTIONS OF SOUTH CENTRAL MINNESOTA OVERNIGHT. SOME OF THESE COULD PRODUCE TORRENTIAL RAINS WITH RAINFALL RATES BETWEEN ONE TO TWO INCHES PER HOUR. THE GROUND REMAINS VERY SATURATED DUE TO RECENT RAINS OVER THE PAST FEW DAYS. ANY RUNOFF FROM THESE THUNDERSTORMS ARE LIKELY TO CAUSE SOME LOCALIZE FLOODING OR SUBSTANTIAL FLOODING...ESPECIALLY IN LOWLAND AND FLASH PRONE AREAS. THE FLASH FLOOD WATCH INCLUDES THE FOLLOWING COUNTIES IN SOUTH CENTRAL MINNESOTA...FREEBORN...FARIBAULT AND STEELE. MNZ084-091-220345- /O.CAN.KMPX.FF.A.0005.000000T0000Z-070822T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WASECA-MARTIN- INCLUDING THE CITIES OF...WASECA...FAIRMONT 937 PM CDT TUE AUG 21 2007 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR A PORTION OF SOUTH CENTRAL MINNESOTA HAS BEEN CANCELLED. THUNDERSTORMS CAPABLE OF PRODUCING HEAVY RAINS...ARE EXPECTED TO TRAIN CLOSE TO THE IOWA AND MINNESOTA BORDER...BETWEEN ALBERT LEA AND OWATONNA OR EAST OF INTERSTATE 35 CORRIDOR. $$ MNZ085-092-093-221045- /O.CON.KMPX.FF.A.0005.000000T0000Z-070822T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ STEELE-FARIBAULT-FREEBORN- INCLUDING THE CITIES OF...OWATONNA...BLUE EARTH...ALBERT LEA 937 PM CDT TUE AUG 21 2007 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTH CENTRAL MINNESOTA...INCLUDING THE FOLLOWING AREAS...FARIBAULT...FREEBORN AND STEELE. * UNTIL 7 AM CDT WEDNESDAY * SHOWERS AND THUNDERSTORMS WILL TRACK NORTHEAST ACROSS PORTIONS OF SOUTH CENTRAL MINNESOTA OVERNIGHT. SOME OF THESE STORMS COULD PRODUCE TORRENTIAL RAINFALL WITH RAINFALL RATES OF 1 TO TWO INCHES PER HOUR. MANY SMALL STREAMS AND CREEK WERE SWOLLEN OR AT BANKFULL. THE GROUND REMAINS VERY SATURATED DUE TO RECENT RAINS OVER THE PAST FEW DAYS. RUNOFF FROM ANY THUNDERSTORMS ARE LIKELY TO CAUSE SOME LOCALIZE FLOODING OR SUBSTANTIAL FLOODING... ESPECIALLY IN LOWLAND AND FLASH PRONE AREAS. * THE FLASH FLOOD WATCH THE FOLLOWING COUNTIES...FARIBAULT...FREEBORN AND STEELE IN SOUTH CENTRAL MINNESOTA. RUNOFF FROM ADDITIONAL RAINFALL MAY ALSO CAUSE FLASH FLOODING OR RAPID RISES ALONG SOME MINOR RIVERS AND STREAMS. A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. $$
000 WGUS63 KMPX 220640 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 140 AM CDT WED AUG 22 2007 ...HEAVY RAINFALL THREAT HAS ENDED... .SHOWERS AND THUNDERSTORMS HAVE REMAINED SOUTH OF THE AFFECTED AREA... THUS THE THREAT FOR FLOODING HAS EXPIRED. MNZ085-092-093-220745- /O.CAN.KMPX.FF.A.0005.000000T0000Z-070822T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ STEELE-FARIBAULT-FREEBORN- INCLUDING THE CITIES OF...OWATONNA...BLUE EARTH...ALBERT LEA 140 AM CDT WED AUG 22 2007 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR A PORTION OF SOUTH CENTRAL MINNESOTA HAS BEEN CANCELLED. SHOWERS AND THUNDERSTORMS DID NOT DEVELOP AS EXPECTED ACROSS THE WARNED AREA. A FEW ROGUE SHOWERS MAY DEVELOP OVER THE REGION LATER THIS MORNING...BUT WILL PRODUCE ONLY LIGHT PRECIPITATION. $$ AZ
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.