Alert archive / North Dakota / Flash Flood Warnings in 2005
Flash Flood Warning 2, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at May 20, 2005, 8:30 PM CDT for Barnes County, Cass County, North Dakota. It was in force for 12 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
- May 20, 2005, 8:30 PM CDT (01:30 UTC)
- Expired
- May 21, 2005, 8:00 AM CDT
- In force
- 12 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
Counties Barnes County, ND, Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 87 km from the middle of the area, began a volume at 01:33 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, 1.5 hours before the alert went out and 215 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
- 665 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 2075 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KFGF 210130
FFWFGF
NDC003-017-211300-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
830 PM CDT FRI MAY 20 2005
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BARNES COUNTY IN SOUTHEAST NORTH DAKOTA
WESTERN CASS COUNTY IN SOUTHEAST NORTH DAKOTA
* UNTIL 800 AM CDT SATURDAY MORNING
* AT 826 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN WITH A CLUSTER OF THUNDERSTORMS MOVING OUT OF
EASTERN STUTSMAN COUNTY. DOPPLER RADAR INDICATES THAT THE AREA
FROM URBANA TO NEAR VALLEY CITY AND ON TO TOWER CITY AND EMBDEN HAS
ALREADY RECEIVED 2 TO 3 INCHES OF RAIN. WITH STRONG THUNDERSTORMS
MOVING INTO THE AREA...AN ADDITIONAL 1 TO 3 INCHES OF RAIN MAY FALL
IN A FEW AREAS. ISOLATED RAINFALLS OF MORE THAN 6 INCHES ARE
POSSIBLE OVERNIGHT.
* SOME LOCATIONS IN THE WARNING INCLUDE SANBORN...VALLEY CITY...
CASSELTON...WHEATLAND...CHAFEE AND TOWER CITY.
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 4666 9839 4666 9769 4667 9718 4721 9724
4718 9841
$$
EWENS2 follow-up statements
000
WGUS73 KFGF 210440
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1140 PM CDT FRI MAY 20 2005
NDC003-017-211300-
BARNES ND-CASS ND-
1140 PM CDT FRI MAY 20 2005
...A FLASH FLOOD WARNING CONTINUES UNTIL 800 AM CDT FOR WESTERN CASS
AND BARNES COUNTIES...
MORE THUNDERSTORMS ARE EXPECTED TO DEVELOP AND MOVE THROUGH WESTERN
CASS AND BARNES COUNTIES OVERNIGHT THROUGH SATURDAY MORNING.
SOME LOCATIONS IN THE WARNING INCLUDE CASSELTON...WHEATLAND...TOWER
CITY...SIBLEY AND SANBORN. DOPPLER RADAR INDICATED THAT THE AREA
FROM URBANA TO NEAR VALLEY CITY AND ON TO TOWER CITY AND EMBDEN
HAS ALREADY RECEIVED 2 TO 3 INCHES OF RAIN. ALSO...AREAS IN
NORTHERN BARNES AND NORTHWESTERN CASS HAS SEEN 1 TO 2 INCHES OF
RAIN. AN ADDITION 2 TO 3 INCHES OF RAIN MAY FALL OVERNIGHT IN A FEW
OF THESE AREAS.
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR
VEHICLE INTO WATER OF UNKNOWN DEPTH. ONE OR TWO FEET OF WATER WILL
FLOAT MOST CARS DOWNSTREAM.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN THE DANGERS OF FLASH FLOODING
ARE HARD TO RECOGNIZE.
LAT...LON 4666 9842 4666 9769 4667 9718 4721 9721
4721 9843
$$
JDS000
WGUS73 KFGF 211258
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
755 AM CDT SAT MAY 21 2005
NDC003-017-211305-
BARNES ND-CASS ND-
755 AM CDT SAT MAY 21 2005
...THE FLASH FLOOD WARNING FOR WESTERN CASS AND BARNES COUNTIES IS
CANCELLED...
AT 755 AM CDT...HEAVY RAINS HAVE MOVED OUT OF BARNES AND WESTERN CASS
COUNTIES. FLASH FLOOD WATERS HAVE SUBSIDED AND FLOODING IS NO LONGER
A THREAT. SO THE WARNING HAS BEEN CANCELLED.
STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION OR
CABLE TELEVISION FOR ADDITIONAL INFORMATION.
LAT...LON 4666 9842 4666 9769 4667 9718 4721 9721
4721 9843
$$
TGThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 7:28 PM CDT | Tornado Warning | FGF | Richland | 30 min |
| May 20, 7:36 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 54 min |
| May 20, 8:23 PM CDT | Severe Thunderstorm Warning | FGF | Cass | 67 min |
| May 20, 8:28 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 57 min |
| May 20, 8:42 PM CDT | Tornado Warning | FGF | Cass | 55 min |
| May 20, 9:43 PM CDT | Severe Thunderstorm Warning | FGF | Barnes | 40 min |
| May 21, 5:36 AM CDT | Severe Thunderstorm Warning | FGF | Eddy, Nelson | 39 min |
| May 21, 5:52 AM CDT | Severe Thunderstorm Warning | FGF | Griggs | 38 min |
Nearby
Flash Flood Warnings in North Dakota, 2005Every flash flood warning in 2005
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.