Alert archive / North Dakota / Flash Flood Warnings in 2016
Flash Flood Warning 9, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at Aug 10, 2016, 9:38 PM CDT for 4 counties in North Dakota. It was in force for 4 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
- Aug 10, 2016, 9:38 PM CDT (02:38 UTC)
- Expired
- Aug 11, 2016, 2:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Flood severity
- None
Counties Benson County, ND, Eddy County, ND, Nelson County, ND, Ramsey County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 129 km from the middle of the area, began a volume at 02:41 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.6 hours before the alert went out and 178 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
- 1983 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 8.6
The text
As transmitted.
573
WGUS53 KFGF 110238
FFWFGF
NDC005-027-063-071-110700-
/O.NEW.KFGF.FF.W.0009.160811T0238Z-160811T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
938 PM CDT WED AUG 10 2016
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN RAMSEY COUNTY IN NORTHEASTERN NORTH DAKOTA...
EDDY COUNTY IN NORTHEASTERN NORTH DAKOTA...
SOUTHEASTERN BENSON COUNTY IN NORTHEASTERN NORTH DAKOTA...
NELSON COUNTY IN NORTHEASTERN NORTH DAKOTA...
* UNTIL 200 AM CDT
* AT 937 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ALONG A LINE EXTENDING FROM NEAR ST MICHAEL TO NEAR
HAMAR. THE STORMS ARE MOVING NORTHEAST AT 20 MPH. FLASH FLOODING
IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
DEVILS LAKE...NEW ROCKFORD...CAMP GRAFTON...LAKOTA...
LAKEWOOD PARK...MICHIGAN AND FORT TOTTEN.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO THREE INCHES ARE POSSIBLE IN
THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4819 9888 4819 9800 4787 9804 4759 9877
4759 9927 4767 9927 4768 9929 4771 9930
4785 9930 4785 9932 4791 9933
$$
HOPKINS1 follow-up statement
143
WGUS73 KFGF 110655
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
155 AM CDT THU AUG 11 2016
NDC005-027-063-071-110704-
/O.EXP.KFGF.FF.W.0009.000000T0000Z-160811T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RAMSEY ND-EDDY ND-BENSON ND-NELSON ND-
155 AM CDT THU AUG 11 2016
...THE FLASH FLOOD WARNING FOR SOUTHERN RAMSEY...EDDY...SOUTHEASTERN
BENSON AND NELSON COUNTIES WILL EXPIRE AT 200 AM CDT...
THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 4819 9888 4819 9800 4787 9804 4759 9877
4759 9927 4767 9927 4768 9929 4771 9930
4785 9930 4785 9932 4791 9933
$$
JHNearby
Flash Flood Warnings in North Dakota, 2016Every flash flood warning in 2016
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.