Alert archive / North Dakota / Flash Flood Warnings in 2021

Flash Flood Warning 5, NWS Bismarck, ND

June 10, 2021McKenzie County, Williams County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jun 10, 2021, 10:28 PM CDT for McKenzie County, Williams County, North Dakota. It was in force for 4 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 10, 2021, 10:28 PM CDT (03:28 UTC)
Expired
Jun 11, 2021, 2:17 AM CDT
In force
4 hr
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Flood severity
None

Counties McKenzie County, ND, Williams County, ND

The radar

The Minot AFB radar (KMBX), 199 km from the middle of the area, began a volume at 03:32 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

TimeReportWhereRemark
Jun 11, 12:45 AM CDTFLASH FLOODWilliston, NDFLASH FLOODING REPORTED IN TOWN WITH MULTIPLE CARS SUBMERGED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 3.5 hours before the alert went out and 227 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.

Skew-T log-pSkew-T log-p diagram, Glasgow Intl Airport, MT at 00:00Z on 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1762 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Glasgow Intl Airport, MT at 00:00Z on 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1762 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
1872 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

The text

As transmitted.

130 
WGUS53 KBIS 110328
FFWBIS
NDC053-105-110730-
/O.NEW.KBIS.FF.W.0005.210611T0328Z-210611T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Bismarck ND
1028 PM CDT Thu Jun 10 2021

The National Weather Service in Bismarck has issued a

* Flash Flood Warning for...
  Northwestern McKenzie County in northwestern North Dakota...
  Central Williams County in northwestern North Dakota...

* Until 230 AM CDT /130 AM MDT/.

* At 1028 PM CDT /928 PM MDT/, Doppler radar indicated that very 
  heavy rainfall that occurred across the area this evening is 
  producing flash flooding. The public has reported flash flooding 
  in the city of Williston. Additional storms moving through 
  Williams and McKenzie Counties may produce additional rainfall of 
  1 to 2 inches, leading to additional flash flooding.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Williston, Ray, Alexander, Wildrose, Epping, Alamo, East Fairview, 
  Trenton, Wheelock, Hamlet, Spring Brook, Charbonneau, Cartwright, 
  Sather Dam, Corinth and Mcgregor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 4863 10354 4863 10289 4860 10289 4796 10359
      4759 10374 4736 10403 4786 10404

FLASH FLOOD...RADAR INDICATED

$$

CJS
2 follow-up statements
830 
WGUS73 KBIS 110628
FFSBIS

Flash Flood Statement
National Weather Service Bismarck ND
128 AM CDT Fri Jun 11 2021

NDC053-105-110730-
/O.CON.KBIS.FF.W.0005.000000T0000Z-210611T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
McKenzie ND-Williams ND-
128 AM CDT Fri Jun 11 2021 /1228 AM MDT Fri Jun 11 2021/

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 AM CDT/130 AM 
MDT/ EARLY THIS MORNING FOR NORTHWESTERN MCKENZIE AND CENTRAL 
WILLIAMS COUNTIES...

At 128 AM CDT /1228 AM MDT/, Thunderstorms produced heavy rain 
across the warned area Thursday evening. Additional rainfall amounts 
of less than half an inch are possible through Friday morning.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Williston, Ray, Alexander, Wildrose, Epping, Alamo, East Fairview, 
  Trenton, Wheelock, Hamlet, Spring Brook, Charbonneau, Cartwright, 
  Sather Dam, Corinth and Mcgregor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 4863 10354 4863 10289 4860 10289 4796 10359
      4759 10374 4736 10403 4786 10404

FLASH FLOOD...RADAR INDICATED

$$

Heinert
343 
WGUS73 KBIS 110717
FFSBIS

Flash Flood Statement
National Weather Service Bismarck ND
217 AM CDT Fri Jun 11 2021

NDC053-105-110727-
/O.CAN.KBIS.FF.W.0005.000000T0000Z-210611T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
McKenzie ND-Williams ND-
217 AM CDT Fri Jun 11 2021 /117 AM MDT Fri Jun 11 2021/

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN MCKENZIE AND 
CENTRAL WILLIAMS COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 4863 10354 4863 10289 4860 10289 4796 10359
      4759 10374 4736 10403 4786 10404

$$

Heinert

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 7:10 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams65 min
Jun 10, 7:17 PM CDTSevere Thunderstorm WarningBISGolden Valley, McKenzie58 min
Jun 10, 7:30 PM CDTAreal Flood AdvisoryBISMcKenzie3 hr
Jun 10, 7:47 PM CDTSevere Thunderstorm WarningBISBurke, Divide, Williams43 min
Jun 10, 7:49 PM CDTTornado WarningBISMcKenzie26 min
Jun 10, 8:12 PM CDTTornado Warning Tornado observedConsiderable damage threatBISMcKenzie33 min
Jun 10, 8:23 PM CDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams52 min
Jun 10, 8:45 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams45 min
Jun 10, 9:28 PM CDTSevere Thunderstorm WarningBISDivide, McKenzie, Williams62 min
Jun 10, 9:49 PM CDTTornado WarningBISWilliams26 min
Jun 10, 9:53 PM CDTSevere Thunderstorm WarningBISBurke, Mountrail52 min
Jun 10, 10:23 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams52 min
Jun 10, 10:29 PM CDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams61 min
Jun 10, 10:35 PM CDTSevere Thunderstorm WarningBISBillings, Golden Valley, McKenzie, Williams40 min
Jun 10, 10:40 PM CDTSpecial Weather StatementBISRenville50 min
Jun 10, 10:57 PM CDTSevere Thunderstorm WarningBISBurke, Renville, Ward39 min
Jun 10, 11:01 PM CDTSevere Thunderstorm WarningBISBillings, Golden Valley, Slope59 min
Jun 10, 11:14 PM CDTSevere Thunderstorm WarningBISDivide, McKenzie, Williams46 min
Jun 10, 11:29 PM CDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams61 min
Jun 10, 11:45 PM CDTSevere Thunderstorm WarningBISBurke, Divide, McKenzie, Mountrail, Williams45 min
Jun 10, 11:51 PM CDTSevere Thunderstorm WarningBISDunn, Grant, Hettinger, Mercer, Morton, Stark54 min
Jun 11, 12:21 AM CDTSevere Thunderstorm WarningBISGrant, Morton, Sioux54 min
Jun 11, 12:30 AM CDTSevere Thunderstorm WarningBISBottineau, Burke, McKenzie, McLean, Mountrail, Renville and 2 more60 min
Jun 11, 12:37 AM CDTSevere Thunderstorm WarningBISDunn, Mercer, Morton, Oliver, Stark38 min
Jun 11, 12:55 AM CDTSevere Thunderstorm WarningBISBurleigh, Morton, Oliver35 min
Jun 11, 1:11 AM CDTSevere Thunderstorm WarningBISEmmons, Grant, Morton, Sioux34 min
Jun 11, 1:26 AM CDTSevere Thunderstorm WarningBISBottineau, McHenry, McLean, Renville, Rolette, Sheridan and 1 more64 min
Jun 11, 1:27 AM CDTSevere Thunderstorm WarningBISBurleigh, McLean, Morton, Oliver, Sheridan33 min
Jun 11, 2:00 AM CDTSevere Thunderstorm WarningBISBurleigh, Emmons, Kidder45 min
Jun 11, 2:26 AM CDTSevere Thunderstorm WarningBISBottineau, McHenry, Pierce, Renville, Rolette, Ward64 min
Jun 11, 2:33 AM CDTSevere Thunderstorm WarningBISEmmons, Kidder, Logan, Stutsman57 min
Jun 11, 3:31 AM CDTSpecial Weather StatementBISDickey, Foster, LaMoure, Logan, McIntosh, Stutsman29 min
Jun 11, 3:43 AM CDTSevere Thunderstorm WarningBISDickey, Foster, LaMoure, Logan, McIntosh, Stutsman47 min
Jun 11, 5:19 AM CDTWind AdvisoryBISAdams, Billings, Bottineau, Bowman, Burke, Divide and 19 more16 hr

Nearby

Flash Flood Warnings in North Dakota, 2021Every flash flood warning in 2021

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.