Alert archive / North Dakota / Flash Flood Warnings in 2011
Flash Flood Warning 11, NWS Bismarck, ND
NWS Bismarck, ND issued this flash flood warning at Jun 19, 2011, 6:54 PM CDT for Divide County, Williams County, North Dakota. It was in force for 5 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
- Jun 19, 2011, 6:54 PM CDT (23:54 UTC)
- Expired
- Jun 20, 2011, 12:23 AM CDT
- In force
- 5 hr
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Flood severity
- None
Counties Divide County, ND, Williams County, ND
The radar
The Glasgow radar (KGGW), 211 km from the middle of the area, began a volume at 23:56 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
Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 11.9 hours before the alert went out and 209 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
- 17 J/kg
- Mixed-layer CIN
- -164 J/kg
- Mixed-layer LCL
- 1671 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
212 WGUS53 KBIS 192354 FFWBIS NDC023-105-200600- /O.NEW.KBIS.FF.W.0011.110619T2354Z-110620T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BISMARCK ND 654 PM CDT SUN JUN 19 2011 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHWESTERN WILLIAMS COUNTY IN NORTHWEST NORTH DAKOTA... WESTERN DIVIDE COUNTY IN NORTHWEST NORTH DAKOTA... * UNTIL 100 AM CDT MONDAY * AT 653 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RAINFALL RATES IN EXCESS OF TWO INCHES PER HOUR ARE POSSIBLE WITH THESE STORMS. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. FLASH FLOODING IS EXPECTED TO OCCUR OVER MAINLY RURAL AREAS OF NORTHWESTERN WILLIAMS AND WESTERN DIVIDE COUNTIES...INCLUDING THE TOWNS OF ALKABO...BONETRAIL...FORTUNA...GRENORA...HANKS AND WRITING ROCK STATE HISTORICAL SITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. && LAT...LON 4900 10361 4816 10392 4816 10404 4900 10405 $$ AYD
2 follow-up statements
250 WGUS73 KBIS 200259 FFSBIS FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 959 PM CDT SUN JUN 19 2011 NDC023-105-200600- /O.CON.KBIS.FF.W.0011.000000T0000Z-110620T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WILLIAMS ND-DIVIDE ND- 959 PM CDT SUN JUN 19 2011 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WESTERN DIVIDE AND NORTHWESTERN WILLIAMS COUNTIES UNTIL 100 AM CDT... AT 957 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL HAVE MOVED OUT OF THE WARNED AREA. HOWEVER...ADDITIONAL THUNDERSTORMS CAPABLE OF PRODUCING HEAVY RAINFALL WERE MOVING TOWARD THE WARNED AREA. RADAR ESTIMATED RAINFALL AMOUNTS OF UP TO FOUR INCHES HAD ALREADY OCCURRED. ADDITIONAL RAINFALL OF UP TO TWO INCHES IS POSSIBLE THROUGH SUNDAY NIGHT. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. IS EXPECTED TO OCCUR OVER MAINLY RURAL AREAS OF NORTHWESTERN WILLIAMS AND WESTERN DIVIDE COUNTIES...INCLUDING THE TOWNS OF ALKABO...BONETRAIL...FORTUNA...GRENORA...HANKS AND WRITING ROCK STATE HISTORICAL SITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES... AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN BISMARCK. && LAT...LON 4900 10361 4816 10392 4816 10404 4900 10405 $$ SCHECK/AYD
974 WGUS73 KBIS 200523 FFSBIS FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1223 AM CDT MON JUN 20 2011 NDC023-105-200533- /O.CAN.KBIS.FF.W.0011.000000T0000Z-110620T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WILLIAMS ND-DIVIDE ND- 1223 AM CDT MON JUN 20 2011 ...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WESTERN DIVIDE AND NORTHWESTERN WILLIAMS COUNTIES IS CANCELLED... THUNDERSTORMS HAVE ENDED OVER THE WARNED AREA...AND EXCESS RUNOFF FROM THESE STORMS HAS SUBSIDED. THEREFORE THE FLASH FLOOD WARNING HAS BEEN CANCELLED. ADDITIONAL LIGHT RAIN SHOWERS ARE POSSIBLE YET TONIGHT...BUT ADDITIONAL FLOODING IS NOT ANTICIPATED. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY. LAT...LON 4900 10361 4816 10392 4816 10404 4900 10405 $$ HAMILTON
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:43 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 62 min |
| Jun 18, 7:52 PM CDT | Areal Flood Advisory | BIS | Burleigh, Morton | 3 hr |
| Jun 18, 7:54 PM CDT | Areal Flood Advisory | BIS | Sioux | 2 hr |
| Jun 18, 8:49 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 56 min |
| Jun 18, 9:35 PM CDT | Areal Flood Warning | BIS | Grant, Morton | 19 hr |
| Jun 18, 11:20 PM CDT | Areal Flood Warning | BIS | Mercer, Morton, Oliver | 18 hr |
| Jun 19, 4:12 PM CDT | Flood Watch | BIS | Billings, Bottineau, Burke, Burleigh, Dickey, Divide and 21 more | 51 hr |
| Jun 19, 5:26 PM CDT | Flash Flood Warning | BIS | Mountrail | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.