Alert archive / North Dakota / Flash Flood Warnings in 2016
Flash Flood Warning 8, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at Aug 10, 2016, 1:24 PM CDT for Ransom County, Richland County, Sargent County, North Dakota. It was in force for 6 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
- Aug 10, 2016, 1:24 PM CDT (18:24 UTC)
- Expired
- Aug 10, 2016, 7:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Flood severity
- None
Counties Ransom County, ND, Richland County, ND, Sargent County, ND
The radar
The Aberdeen radar (KABR), 102 km from the middle of the area, began a volume at 18:26 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 10, 4:00 PM CDT | FLASH FLOOD | 4 S Elliott, ND | FARM AND FIELD ACCESS ROADS WERE FLOODED BY PERSISTENT HEAVY RAINFALL. DITCHES AND CULVERTS ALSO RAN FULL. AN OBSERVER MEASURED 6.80 INCHES OF RAIN OVER A 36 HOUR PERIOD. |
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 12:00Z, 6.4 hours before the alert went out and 159 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
- 1 J/kg
- Mixed-layer CIN
- -354 J/kg
- Mixed-layer LCL
- 752 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 365 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 12.7
The text
As transmitted.
186
WGUS53 KFGF 101824
FFWFGF
NDC073-077-081-110000-
/O.NEW.KFGF.FF.W.0008.160810T1824Z-160811T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
124 PM CDT WED AUG 10 2016
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHWESTERN RICHLAND COUNTY IN SOUTHEASTERN NORTH DAKOTA...
SOUTHERN RANSOM COUNTY IN SOUTHEASTERN NORTH DAKOTA...
NORTHERN SARGENT COUNTY IN SOUTHEASTERN NORTH DAKOTA...
* UNTIL 700 PM CDT
* AT 116 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS FAR NORTHERN SARGENT THROUGH SOUTHERN RANSOM AND
NORTHERN RICHLAND COUNTIES. DOPPLER RADAR INDICATES OVER 2 INCHES
OF RAIN HAS FALLEN OVER PARTS OF THIS AREA THIS MORNING INTO EARLY
AFTERNOON...IN ADDITION TO HEAVY RAINFALL LAST NIGHT. ADDITIONAL
THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON WITH ALREADY SATURATED
CONDITIONS. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LISBON...GWINNER...MILNOR...WYNDMERE...MOORETON...DE LAMERE AND
ENGLEVALE.
ALSO INCLUDES INTERSTATE 29 NEAR MILE MARKER 20.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4613 9800 4615 9801 4617 9800 4628 9801
4628 9803 4643 9803 4651 9690 4622 9683
$$
JAM1 follow-up statement
087
WGUS73 KFGF 102356
FFSFGF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
656 PM CDT WED AUG 10 2016
NDC073-077-081-110006-
/O.EXP.KFGF.FF.W.0008.000000T0000Z-160811T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RICHLAND ND-RANSOM ND-SARGENT ND-
656 PM CDT WED AUG 10 2016
...THE FLASH FLOOD WARNING FOR NORTHWESTERN RICHLAND...SOUTHERN
RANSOM AND NORTHERN SARGENT COUNTIES WILL EXPIRE AT 700 PM CDT...
THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 4613 9800 4615 9801 4617 9800 4628 9801
4628 9803 4643 9803 4651 9690 4622 9683
$$
HOPKINSThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 12:00 AM CDT | Special Weather Statement | FGF | Ransom | 60 min |
| Aug 10, 2:11 AM CDT | Severe Thunderstorm Warning | FGF | Richland, Sargent | 64 min |
| Aug 10, 3:09 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland | 66 min |
| Aug 10, 4:29 AM CDT | Areal Flood Advisory | FGF | Ransom, Richland, Sargent | 6 hr |
| Aug 10, 11:41 AM CDT | Severe Thunderstorm Warning | FGF | Ransom, Sargent | 64 min |
| Aug 10, 11:49 AM CDT | Flash Flood Watch | FGF | Barnes, Cass, Ransom, Richland, Sargent, Steele and 1 more | 16 hr |
| Aug 10, 12:47 PM CDT | Severe Thunderstorm Warning | FGF | Ransom, Richland | 58 min |
| Aug 10, 1:23 PM CDT | Severe Thunderstorm Warning | FGF | Richland | 67 min |
| Aug 10, 2:31 PM CDT | Areal Flood Advisory | FGF | Richland | 4 hr |
| Aug 10, 5:10 PM CDT | Areal Flood Advisory | FGF | Barnes, Cass | 5 hr |
Nearby
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.