Alert archive / Minnesota / Flash Flood Warnings in 2010
Flash Flood Warning 21, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at Jul 17, 2010, 6:11 PM CDT for 4 counties in Minnesota. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 17, 2010, 6:11 PM CDT (23:11 UTC)
- Expired
- Jul 18, 2010, 7:00 AM CDT
- In force
- 13 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Flood severity
- None
Counties Becker County, MN, Otter Tail County, MN, Wadena County, MN, Wilkin County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 161 km from the middle of the area, began a volume at 23:13 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 12:00Z, 11.2 hours before the alert went out and 253 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
- 368 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 1285 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
810
WGUS53 KFGF 172313
FFWFGF
MNC005-111-159-167-181200-
/O.NEW.KFGF.FF.W.0021.100717T2313Z-100718T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
611 PM CDT SAT JUL 17 2010
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL WADENA COUNTY IN CENTRAL MINNESOTA...
EXTREME SOUTHWESTERN BECKER COUNTY IN NORTHWEST MINNESOTA...
NORTHEASTERN WILKIN COUNTY IN WEST CENTRAL MINNESOTA...
NORTHERN OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA...
* UNTIL 700 AM CDT SUNDAY
* AT 611 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUED ACROSS
NORTHERN OTTER TAIL COUNTY INTO WADENA COUNTY. ADDITIONAL
STRONG THUNDERSTORMS WILL MOVE ACROSS THE WARNING AREA
DURING THE EVENING THIS SATURDAY. DOPPLER RADAR ESTIMATES
SHOW 3 TO 6 INCHES OF RAIN HAVE FALLEN FROM AROUND ROTHSAY
TO NEAR FRAZEE...NEW YORK MILLS AND SEBEKA. THIS WARNING
UPDATES AND REPLACES THE PREVIOUS WARNING ISSUED AT 532 PM.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...NEW
YORK MILLS...PELICAN RAPIDS...PERHAM...SEBEKA...BIG MCDONALD
LAKE...BLUE GRASS AND BLUFFTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN THE DANGERS OF FLASH FLOODING
ARE HARD TO RECOGNIZE.
TURN AROUND DONT DROWN. AVOID DRIVING ON FLOODED ROADS. MOST FLOOD
RELATED DEATHS OCCUR IN AUTOMOBILES.
&&
LAT...LON 4669 9480 4641 9480 4652 9594 4640 9649
4662 9649 4662 9616 4674 9617
$$
EWENS3 follow-up statements
021
WGUS73 KFGF 180125
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
817 PM CDT SAT JUL 17 2010
MNC005-111-159-167-181200-
/O.CON.KFGF.FF.W.0021.000000T0000Z-100718T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WADENA MN-WILKIN MN-BECKER MN-OTTER TAIL MN-
817 PM CDT SAT JUL 17 2010
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM CDT SUNDAY
FOR NORTHERN OTTER TAIL...EXTREME SOUTHWESTERN BECKER...NORTHEASTERN
WILKIN AND CENTRAL WADENA COUNTIES...
AT 817 PM CDT...DOPPLER RADAR INDICATED THAT 5 TO 7 INCHES OF RAIN
HAD FALLEN FROM NORTHWEST OF PERHAM IN OTTER TAIL COUNTY...EASTWARD
TO NEAR SEBEKA IN WADENA COUNTY. 3 TO 5 INCHES OF RAIN APPEARS TO
HAVE FALLEN IN THE LAWNDALE AND ROTHSAY AREAS OF WILKIN COUNTY. THE
MNDOT RWIS STATION NEAR ROTHSAY REPORTED JUST UNDER 5 INCHES OF RAIN
THIS EVENING.
WHILE THE STRONGEST THUNDERSTORMS HAVE MOVED EAST OF THE WARNING
AREA RUNOFF FROM THIS EXCESSIVE RAINFALL WILL STILL CAUSE FLASH
FLOODING. SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE THE
RURAL AREAS AROUND NEW YORK MILLS...PELICAN RAPIDS...PERHAM...
SEBEKA...BIG MCDONALD LAKE...BLUE GRASS AND BLUFFTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN THE DANGERS OF FLASH FLOODING
ARE HARD TO RECOGNIZE.
TURN AROUND DONT DROWN. AVOID DRIVING ON FLOODED ROADS. MOST FLOOD
RELATED DEATHS OCCUR IN AUTOMOBILES.
&&
LAT...LON 4669 9480 4641 9480 4652 9594 4640 9649
4662 9649 4662 9616 4674 9617
$$
EWENS339
WGUS73 KFGF 180458
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1155 PM CDT SAT JUL 17 2010
MNC005-111-159-167-181200-
/O.CON.KFGF.FF.W.0021.000000T0000Z-100718T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WADENA MN-WILKIN MN-BECKER MN-OTTER TAIL MN-
1155 PM CDT SAT JUL 17 2010
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM CDT SUNDAY
FOR NORTHERN OTTER TAIL...EXTREME SOUTHWESTERN BECKER...NORTHEASTERN
WILKIN AND CENTRAL WADENA COUNTIES...
AS OF LATE SATURDAY EVENING THE STRONG THUNDERSTORMS WHICH PRODUCED
5 TO 7 INCHES OF RAIN IN THE NEW YORK MILLS...SEBEKA...BUTLER AND
VERGAS AREAS HAD MOVED OUT. THE HEAVIEST RAIN FELL IN RURAL AREAS OF
NORTHERN AND EASTERN OTTER TAIL COUNTY...WHICH LIKELY HAS RESULTED
IN MAINLY AGRICULTURAL DAMAGE. WITH RECENT HEAVY RAINS SOME AREA
LAKES ARE RISING AND MAY WELL CAUSE FLOODING TO ROADWAYS NEAR THE
LAKE SHORE.
ALTHOUGH THE RAINS HAVE ENDED RUNOFF WILL CONTINUE FOR A
FEW MORE HOURS. DAMAGE TO ROADWAYS AND OTHER SURFACES MAY BE
INVISIBLE...ESPECIALLY AT NIGHT...SO CAUTION IS ADVISED WHILE
TRAVELING OVERNIGHT.
STREET FLOODING WAS REPORTED AROUND 800 PM IN THE PERHAM AREA AND
FLOODING WAS ALSO REPORTED IN THE NEARBY BIG PINE LAKE AREA. FIELDS
WERE FLOODED WITH DITCHES FULL ALONG THE WILKIN AND OTTER TAIL
COUNTY LINES.
SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE THE RURAL AREAS
NEAR NEW YORK MILLS...PELICAN RAPIDS...PERHAM...SEBEKA...BIG
MCDONALD LAKE...BLUE GRASS AND BLUFFTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN THE DANGERS OF FLASH FLOODING
ARE HARD TO RECOGNIZE.
&&
LAT...LON 4669 9480 4641 9480 4652 9594 4640 9649
4662 9649 4662 9616 4674 9617
$$
EWENS697
WGUS73 KFGF 181157
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
654 AM CDT SUN JUL 18 2010
MNC005-111-159-167-181209-
/O.EXP.KFGF.FF.W.0021.000000T0000Z-100718T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WADENA MN-WILKIN MN-BECKER MN-OTTER TAIL MN-
654 AM CDT SUN JUL 18 2010
...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 AM CDT FOR NORTHERN
OTTER TAIL...EXTREME SOUTHWESTERN BECKER...NORTHEASTERN WILKIN AND
CENTRAL WADENA COUNTIES...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS THIS MORNING AS THERE MAY BE UNREPORTED LOW
LYING ROADS AND/OR CULVERTS THAT MAY HAVE BEEN DAMAGED OVERNIGHT DUE
TO FLASH FLOODING.
&&
LAT...LON 4669 9480 4641 9480 4652 9594 4640 9649
4662 9649 4662 9616 4674 9617
$$
JKThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 11:27 AM CDT | Severe Thunderstorm Warning | FGF | Becker | 63 min |
| Jul 17, 12:09 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard, Wadena | 54 min |
| Jul 17, 12:58 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clearwater, Hubbard | 62 min |
| Jul 17, 2:05 PM CDT | Severe Thunderstorm Warning | FGF | Hubbard | 15 min |
| Jul 17, 4:19 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Hubbard, Otter Tail, Wadena | 41 min |
| Jul 17, 4:33 PM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 57 min |
| Jul 17, 4:37 PM CDT | Tornado Warning | FGF | Otter Tail, Wadena | 38 min |
| Jul 17, 4:51 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Otter Tail, Wilkin | 54 min |
| Jul 17, 4:57 PM CDT | Tornado Warning | FGF | Otter Tail, Wadena | 48 min |
| Jul 17, 5:04 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Otter Tail | 41 min |
| Jul 17, 5:20 PM CDT | Flash Flood Warning | FGF | Otter Tail, Wadena | 55 min |
| Jul 17, 5:26 PM CDT | Tornado Warning | FGF | Otter Tail, Wadena | 49 min |
| Jul 17, 5:28 PM CDT | Severe Thunderstorm Warning | FGF | Grant, Otter Tail, Wilkin | 62 min |
| Jul 17, 5:42 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Otter Tail, Wilkin | 63 min |
| Jul 17, 6:00 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wadena | 60 min |
| Jul 17, 6:07 PM CDT | Severe Thunderstorm Warning | FGF | Clay | 53 min |
| Jul 17, 6:46 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clay, Otter Tail, Wilkin | 29 min |
Nearby
Flash Flood Warnings in Minnesota, 2010Every flash flood warning in 2010
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.