Alert archive / North Dakota / Flash Flood Warnings in 2008
Flash Flood Warning 2, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at Aug 11, 2008, 9:55 PM CDT for Richland County, North Dakota; Wilkin County, Minnesota. It took effect at Aug 11, 2008, 10:04 PM CDT. It was in force for 8 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 11, 2008, 9:55 PM CDT (02:55 UTC)
- In effect from
- Aug 11, 2008, 10:04 PM CDT
- Expired
- Aug 12, 2008, 6:00 AM CDT
- In force
- 8 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Flood severity
- None
Counties Wilkin County, MN, Richland County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 139 km from the middle of the area, began a volume at 02:58 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 11, 10:42 PM CDT | FLASH FLOOD | Wahpeton, ND | NO TRAVEL ADVISED BY CITY OFFICIALS DUE TO FLOODING |
| Aug 11, 11:55 PM CDT | FLASH FLOOD | Breckenridge, MN | CITY PARK FLOODED. SEVERAL STREETS BARACADED DUE TO STREET FLOODING. |
| Aug 12, 1:55 AM CDT | FLASH FLOOD | 1 N Kent, MN | U.S. HIGHWAY 75 FLOODED AT RAIL ROAD UNDERPASS. |
| Aug 12, 1:55 AM CDT | FLASH FLOOD | 2 Ssw Abercrombie, ND | SEVERAL FIELDS AND FARM ACCESS ROADS WERE FLOODED DUE TO RUNOFF FROM HEAVY RAINS IN NORTHEAST RICHLAND AND NORTHWEST WILKIN COUNTIES. RAINFALL RANGED FROM 3 TO 6 INCHES OVER SEVERAL TOWNSHIPS DURING A ROUGHLY 4 HOUR PERIOD ON THE EVENING OF THE 11TH. THIS FOLL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 2.9 hours before the alert went out and 211 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
- 174 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1115 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -94 m²/s²
- 0-3 km storm-relative helicity
- -246 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KFGF 120304 FFWFGF MNC167-NDC077-121100- /O.NEW.KFGF.FF.W.0002.080812T0304Z-080812T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 955 PM CDT MON AUG 11 2008 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * FLASH FLOOD WARNING FOR... RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA...THIS INCLUDES THE CITY OF WAHPETON... WILKIN COUNTY IN WEST CENTRAL MINNESOTA...THIS INCLUDES THE CITY OF BRECKENRIDGE... * UNTIL 600 AM CDT TUESDAY * AT 950 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR WALCOTT TO 4 MILES NORTHWEST OF GREAT BEND. THE WESTERN EDGE OF THE HEAVIER RAIN WAS ALONG A LINE FROM COLFAX TO MOORETON. NUMEROUS REPORTS OF FLOODING HAVE BEEN RECEIVED ALONG WITH RAINFALL TOTALS BETWEEN 3 AND 6 INCHES IN AND AROUND THE WAHPETON BRECKENRIDGE AREA. LOCAL RUNOFF WILL CONTINUE FLOODING CONCERNS THROUGH THE OVERNIGHT PERIOD...EVEN THOUGH THE RAIN WILL GRADUALLY COME TO AN END. * SOME LOCATIONS IN THE WARNING INCLUDE WAHPETON...BRECKENRIDGE... MCCAULEYVILLE AND KENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE INTO WATER OF UNKNOWN DEPTH. ONE OR TWO FEET OF WATER WILL FLOAT MOST CARS DOWNSTREAM. LAT...LON 4653 9645 4613 9641 4609 9697 4653 9704 $$ WJB
2 follow-up statements
000 WGUS73 KFGF 120659 FFSFGF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 153 AM CDT TUE AUG 12 2008 MNC167-NDC077-121100- /O.CON.KFGF.FF.W.0002.000000T0000Z-080812T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WILKIN MN-RICHLAND ND- 153 AM CDT TUE AUG 12 2008 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR CENTRAL RICHLAND AND CENTRAL WILKIN COUNTIES... AT 150 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLOODING WITHIN THE STREETS OF WAHPETON...ESPECIALLY ON THE SOUTH SIDE OF TOWN...WITH AN OVERALL GRADUAL SUBSIDING OF WATER LEVELS. MORE LIGHT SHOWERS ARE POSSIBLE EARLY THIS MORNING ALONG AND EAST OF THE RED RIVER BETWEEN RICHLAND AND WILKIN COUNTIES. THE ADDITIONAL LIGHT SHOWERS SHOULD BE OF INSIGNIFICANCE TO THE CURRENT FLOODING PROBLEMS. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. LAT...LON 4653 9645 4613 9641 4609 9697 4653 9704 $$ G2/VG
000 WGUS73 KFGF 121105 FFSFGF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 559 AM CDT TUE AUG 12 2008 MNC167-NDC077-121109- /O.EXP.KFGF.FF.W.0002.000000T0000Z-080812T1100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WILKIN MN-RICHLAND ND- 559 AM CDT TUE AUG 12 2008 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 600 AM CDT FOR CENTRAL RICHLAND AND CENTRAL WILKIN COUNTIES... AT 559 AM CDT...LOCAL REPORTS FROM THE WAHPETON AND BRECKENRIDGE AREAS INDICATE THAT STREET FLOODING IS NO LONGER AN ISSUE AS WATERS CONTINUE TO SUBSIDE. SINCE NO MORE RAIN IS EXPECTED FOR THE REMAINDER OF THE DAY...THE WARNING WILL BE ALLOWED TO EXPIRE AT 600 AM CDT. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION OR CABLE TELEVISION FOR ADDITIONAL INFORMATION. LAT...LON 4653 9645 4613 9641 4609 9697 4653 9704 $$ G2/VG
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 9:20 AM CDT | River Flood Warning | FGF | Clay | 25 hr |
| Aug 12, 9:20 AM CDT | River Flood Warning | FGF | Clay | 25 hr |
Nearby
Flash Flood Warnings in North Dakota, 2008Flash Flood Warnings in Minnesota, 2008Every flash flood warning in 2008
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.