Alert archive / North Dakota / Flash Flood Warnings in 2011
Flash Flood Warning 4, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at Jun 25, 2011, 10:43 PM CDT for Eddy County, North Dakota. It was in force for 7 hr. 1 report 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
- Jun 25, 2011, 10:43 PM CDT (03:43 UTC)
- Expired
- Jun 26, 2011, 6:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Flood severity
- None
County Eddy County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 130 km from the middle of the area, began a volume at 03:45 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 |
|---|---|---|---|
| Jun 25, 10:43 PM CDT | HEAVY RAIN 0 | 6 E Sheyenne, ND | HEAVY RAIN STILL OCCURRING AND WATER IS BEGINNING TO OVERTOP THE HWY 20 ROADBED WITH DITCHES RUNNING FULL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 3.7 hours before the alert went out and 165 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
- 1619 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1448 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
867
WGUS53 KFGF 260345
FFWFGF
NDC027-261100-
/O.NEW.KFGF.FF.W.0004.110626T0345Z-110626T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1043 PM CDT SAT JUN 25 2011
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EDDY COUNTY IN NORTHEAST NORTH DAKOTA...
* UNTIL 600 AM CDT SUNDAY
* AT 1043 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING ACROSS THE EDDY
COUNTY AREA. WATER REPORTED OVER THE ROAD 6 MILES EAST OF
SHEYENNE NORTH DAKOTA. ADDITIONAL HEAVY RAINS WILL BE MOVING
ACROSS THE WARNING AREA BETWEEN 11 PM AND MIDNIGHT.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...NEW
ROCKFORD...BRANTFORD AND SHEYENNE.
THE FOLLOWING STREAMS ARE INCLUDED IN THE WARNING...SHEYENNE RIVER...
JAMES RIVER AND ROCKY RUN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND DONT DROWN. AVOID DRIVING ON FLOODED ROADS. MOST FLOOD
RELATED DEATHS OCCUR IN AUTOMOBILES.
&&
LAT...LON 4784 9871 4759 9870 4760 9926 4768 9926
4768 9928 4784 9929
$$
EWENS2 follow-up statements
497
WGUS73 KFGF 260706
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
158 AM CDT SUN JUN 26 2011
NDC027-261100-
/O.CON.KFGF.FF.W.0004.000000T0000Z-110626T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDDY ND-
158 AM CDT SUN JUN 26 2011
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR
EDDY COUNTY...
AT 158 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS
WITH VERY HEAVY RAINFALL HAVE MOVED OUT OF THE WARNED AREA. RADAR
STORM TOTAL RAINFALL ESTIMATES SHOW 1 TO 2 INCHES OF RAIN HAVE
FALLEN ACROSS MUCH OF THE WARNED AREA WITH UP TO 3 INCHES OF RAIN IN
A SMALL AREA FROM 6 TO 12 MILES NORTHEAST OF NEW ROCKFORD. NO
ADDITIONAL RAINFALL IS EXPECTED THROUGH 600 AM CDT THIS MORNING.
HOWEVER...RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CONTINUE TO CAUSE
FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE
FLOODING INCLUDE...NEW ROCKFORD...BRANTFORD AND SHEYENNE.
THE FOLLOWING STREAMS ARE INCLUDED IN THE WARNING...SHEYENNE RIVER...
JAMES RIVER AND ROCKY RUN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND DONT DROWN. AVOID DRIVING ON FLOODED ROADS. MOST FLOOD
RELATED DEATHS OCCUR IN AUTOMOBILES.
&&
LAT...LON 4784 9871 4759 9870 4760 9926 4768 9926
4768 9928 4784 9929
$$
ROGERS871
WGUS73 KFGF 261053
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
553 AM CDT SUN JUN 26 2011
NDC027-261108-
/O.EXP.KFGF.FF.W.0004.000000T0000Z-110626T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EDDY ND-
553 AM CDT SUN JUN 26 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 600 AM CDT FOR EDDY
COUNTY...
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...
TURN AROUND DONT DROWN. AVOID DRIVING ON FLOODED ROADS. MOST FLOOD
RELATED DEATHS OCCUR IN AUTOMOBILES.
&&
LAT...LON 4784 9871 4759 9870 4760 9926 4768 9926
4768 9928 4784 9929
$$
ROGERSThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:54 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Cavalier, Ramsey, Towner | 66 min |
| Jun 25, 8:32 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 58 min |
| Jun 25, 8:53 PM CDT | Areal Flood Advisory | FGF | Benson, Eddy, Ramsey, Towner | 8 hr |
| Jun 25, 9:01 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 59 min |
| Jun 25, 9:29 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 46 min |
| Jun 25, 10:02 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Nelson, Ramsey | 46 min |
| Jun 25, 10:17 PM CDT | Severe Thunderstorm Warning | FGF | Eddy, Nelson | 58 min |
| Jun 25, 10:59 PM CDT | Areal Flood Advisory | FGF | Benson, Grand Forks, Nelson, Ramsey, Walsh | 7 hr |
| Jun 26, 5:57 AM CDT | Areal Flood Advisory | FGF | Ransom, Richland, Sargent | 6 hr |
Nearby
Flash Flood Warnings in North Dakota, 2011Every flash flood warning in 2011
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.