Alert archive / North Dakota / Flash Flood Warnings in 2011

Flash Flood Warning 32, NWS Bismarck, ND

July 22, 2011Dunn County, McKenzie County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jul 22, 2011, 6:48 PM MDT for Dunn County, McKenzie County, North Dakota. It was in force for 6 hr. 4 reports 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: Jul 22, 2011, 6:48 PM MDT (00:48 UTC)
Expired: Jul 23, 2011, 1:00 AM MDT
In force: 6 hr
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Flood severity: None

Counties Dunn County, ND, McKenzie County, ND

What was reported inside it

Time	Report	Where	Remark
Jul 22, 7:30 PM MDT	HEAVY RAIN 0	Theodore Roosevelt Nati, ND	1.30 INCHES IN LAST 30 MINUTES...WITH 0.25 INCHES MEASURED EVERY 5 MINUTES...
Jul 22, 7:30 PM MDT	HEAVY RAIN 1.13	Grassy Butte, ND	FELL IN A HALF HOUR. PEA SIZE HAIL.
Jul 22, 7:30 PM MDT	HEAVY RAIN 1.3	Theodore Roosevelt Nati, ND	1.30 INCHES IN THE LAST 30 MINUTES...WITH 0.25 INCH EVERY FIVE MINUTES ESTIMATED...
Jul 22, 7:46 PM MDT	HEAVY RAIN 1.5	6 N Killdeer, ND	45 MINUTE STORM TOTAL.

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, 0.8 hours before the alert went out and 232 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1233 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 912 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: -80 m²/s²
0-3 km storm-relative helicity: -92 m²/s²
Significant tornado parameter: -1.0
Supercell composite: -4.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

899 
WGUS53 KBIS 230048
FFWBIS
NDC025-053-230700-
/O.NEW.KBIS.FF.W.0032.110723T0048Z-110723T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
648 PM MDT FRI JUL 22 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MCKENZIE COUNTY IN NORTHWEST NORTH DAKOTA...
  NORTHWESTERN DUNN COUNTY IN SOUTHWEST NORTH DAKOTA...

* UNTIL 100 AM MDT SATURDAY/200 AM CDT SATURDAY/

* AT 647 PM MDT/747 PM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS
  THE WARNED AREA. RAINFALL RATES OF ONE AND A HALF TO TWO INCHES    
  PER HOUR ARE OCCURRING 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 MCKENZIE AND NORTHWESTERN DUNN COUNTIES...INCLUDING THE TOWNS OF
  4 BEARS LODGE...ALEXANDER...ARNEGARD...CARTWRIGHT...CHARBONNEAU...
  CHARLSON...EAST FAIRVIEW...GRASSY BUTTE...JOHNSONS CORNER...
  KEENE...KILLDEER...LITTLE MISSOURI STATE PARK...MANDAREE...
  OAKDALE...RAWSON...SATHER DAM...SKAAR...THEODORE ROOSEVELT NATIONAL
  PARK NORTH...TOBACCO GARDEN BAY RECREATION AREA AND WATFORD CITY.
  
  FLASH FLOODING IS ESPECIALLY LIKELY WITHIN THE BADLANDS...WHERE    
  STEEP TERRAIN WILL ACCELERATE RUNOFF. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

REPORT FLOODING TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
BISMARCK AT 701-223-4582.

&&

LAT...LON 4799 10405 4796 10389 4801 10385 4798 10382
      4805 10379 4806 10371 4810 10373 4813 10361
      4813 10359 4812 10361 4808 10355 4804 10358
      4801 10350 4806 10324 4814 10320 4813 10275
      4800 10256 4786 10266 4732 10263 4733 10405

$$

TM/AYD

3 follow-up statements

745 
WGUS73 KBIS 230058
FFSBIS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
758 PM CDT FRI JUL 22 2011

NDC025-053-230700-
/O.CON.KBIS.FF.W.0032.000000T0000Z-110723T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MCKENZIE ND-DUNN ND-
658 PM MDT FRI JUL 22 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL DUNN AND
MCKENZIE COUNTIES UNTIL 100 AM MDT SATURDAY/200 AM CDT SATURDAY/...

AT 656 PM MDT/756 PM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED 
AREA. RAINFALL RATES OF ONE AND A HALF TO TWO INCHES      PER HOUR 
ARE OCCURRING WITH THESE STORMS. 

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. IS EXPECTED TO OCCUR OVER MAINLY RURAL AREAS OF MCKENZIE AND
WEST CENTRAL DUNN COUNTIES...INCLUDING THE TOWNS OF ALEXANDER...
ARNEGARD...CARTWRIGHT...CHARBONNEAU...CHARLSON...EAST FAIRVIEW...
GRASSY BUTTE...JOHNSONS CORNER...KEENE...KILLDEER...LITTLE MISSOURI
STATE PARK...MANDAREE...OAKDALE...RAWSON...SATHER DAM...SKAAR...
THEODORE ROOSEVELT NATIONAL PARK NORTH...TOBACCO GARDEN BAY
RECREATION AREA AND WATFORD CITY.

FLASH FLOODING IS ESPECIALLY LIKELY WITHIN THE BADLANDS...WHERE      
STEEP TERRAIN WILL ACCELERATE RUNOFF. THOSE CAMPING IN THE NORTH 
UNIT OF THE THEODORE ROOSEVELT NATIONAL PARK SHOULD SEEK HIGHER 
GROUND AS RAPID RUNOFF AND FLASH FLOODING IS LIKELY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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 4799 10405 4796 10389 4801 10385 4798 10382
      4805 10379 4806 10371 4810 10373 4813 10361
      4813 10359 4812 10361 4808 10355 4804 10358
      4801 10350 4806 10324 4814 10320 4813 10275
      4800 10256 4786 10266 4732 10263 4733 10405

$$

TM/AYD

207 
WGUS73 KBIS 230310 RRA
FFSBIS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1010 PM CDT FRI JUL 22 2011

NDC025-053-230700-
/O.CON.KBIS.FF.W.0032.000000T0000Z-110723T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MCKENZIE ND-DUNN ND-
910 PM MDT FRI JUL 22 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WEST CENTRAL DUNN AND
MCKENZIE COUNTIES UNTIL 100 AM MDT/200 AM CDT/...

AT 902 PM MDT/1002 PM CDT/...VERY HEAVY RAIN HAD MOVED OUT OF THE 
WARNED AREA. HOWEVER...LIGHT TO MODERATE RAIN CONTINUES OVER THE 
REGION. ADDITIONAL THUNDERSTORMS ARE STILL POSSIBLE LATER THIS 
EVENING. RADAR ESTIMATES OF 3 TO 5 INCHES WERE INDICATED OVER A GOOD 
PORTION OF SOUTHERN MCKENZIE COUNTY...FROM SATHER DAM EAST TO THE 
THEODORE ROOSEVELT NATIONAL PARK.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. IS EXPECTED TO OCCUR OVER MAINLY RURAL AREAS OF MCKENZIE AND
WEST CENTRAL DUNN COUNTIES...INCLUDING THE TOWNS OF ALEXANDER...
ARNEGARD...CARTWRIGHT...CHARBONNEAU...CHARLSON...EAST FAIRVIEW...
GRASSY BUTTE...JOHNSONS CORNER...KEENE...KILLDEER...LITTLE MISSOURI
STATE PARK...MANDAREE...OAKDALE...RAWSON...SATHER DAM...SKAAR...
THEODORE ROOSEVELT NATIONAL PARK NORTH...TOBACCO GARDEN BAY
RECREATION AREA AND WATFORD CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

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 4799 10405 4796 10389 4801 10385 4798 10382
      4805 10379 4806 10371 4810 10373 4813 10361
      4813 10359 4812 10361 4808 10355 4804 10358
      4801 10350 4806 10324 4814 10320 4813 10275
      4800 10256 4786 10266 4732 10263 4733 10405

$$

HAMILTON

702 
WGUS73 KBIS 230712
FFSBIS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
212 AM CDT SAT JUL 23 2011

NDC025-053-230721-
/O.EXP.KBIS.FF.W.0032.000000T0000Z-110723T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MCKENZIE ND-DUNN ND-
112 AM MDT SAT JUL 23 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WEST CENTRAL DUNN
AND MCKENZIE COUNTIES HAS BEEN ALLOWED TO EXPIRE...

HEAVY RAIN HAS ENDED OVER THE WARNED AREA. HOWEVER...FLOODING ALONG 
TOWNSHIP ROADS AND SMALL STREAMS WILL LIKELY LINGER OVERNIGHT INTO 
SATURDAY MORNING. THUS...A FLOOD WARNING HAS BEEN ISSUED FOR PARTS 
OF CENTRAL MCKENZIE AND NORTHERN DUNN COUNTIES....  ADDITIONAL 
SCATTERED THUNDERSTORMS ARE POSSIBLE OVERNIGHT...BUT NO ADDITIONAL 
SHORT TERM FLASH FLOODING IS EXPECTED. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4799 10405 4796 10389 4801 10385 4798 10382
      4805 10379 4806 10371 4810 10373 4813 10361
      4813 10359 4812 10361 4808 10355 4804 10358
      4801 10350 4806 10324 4814 10320 4813 10275
      4800 10256 4786 10266 4732 10263 4733 10405

$$

KINNEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 6:15 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Bowman, Golden Valley, Slope	60 min
Jul 22, 6:40 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Golden Valley, McKenzie, Williams	65 min
Jul 22, 7:04 PM MDT	Flash Flood Warning	BIS	Billings, Dunn, Golden Valley, McKenzie, Stark	6 hr
Jul 22, 7:06 PM MDT	Tornado Warning	BIS	Dunn, McKenzie	39 min
Jul 22, 7:10 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Golden Valley, Stark	65 min
Jul 22, 7:15 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	60 min
Jul 22, 7:18 PM MDT	Tornado Warning	BIS	Billings, Stark	27 min
Jul 22, 7:32 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, McKenzie, McLean, Mercer, Mountrail	58 min
Jul 22, 7:41 PM MDT	Tornado Warning	BIS	Billings, Stark	34 min
Jul 22, 7:49 PM MDT	Flash Flood Warning	BIS	Dunn, McLean, Mercer, Mountrail	6 hr
Jul 22, 7:55 PM MDT	Tornado Warning	BIS	Dunn	35 min
Jul 22, 8:08 PM MDT	Tornado Warning	BIS	Hettinger, Slope, Stark	37 min
Jul 22, 8:13 PM MDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Morton, Oliver, Stark	62 min
Jul 22, 8:15 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Grant, Hettinger	60 min
Jul 22, 8:22 PM MDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer, Mountrail, Oliver, Ward	53 min
Jul 22, 8:33 PM MDT	Tornado Warning	BIS	Hettinger, Slope	27 min
Jul 22, 8:51 PM MDT	Tornado Warning	BIS	McLean, Mercer	24 min
Jul 22, 8:56 PM MDT	Tornado Warning	BIS	Adams, Grant, Hettinger	34 min
Jul 22, 9:00 PM MDT	Tornado Warning	BIS	Morton, Oliver	30 min
Jul 22, 9:12 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	63 min
Jul 22, 9:14 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Mercer, Oliver, Sheridan	61 min
Jul 22, 9:16 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Burleigh, Emmons, Grant, Hettinger, Morton and 1 more	59 min
Jul 22, 9:25 PM MDT	Tornado Warning	BIS	Adams, Grant, Hettinger, Sioux	35 min
Jul 22, 9:27 PM MDT	Tornado Warning	BIS	Burleigh, Morton, Oliver	33 min
Jul 22, 9:51 PM MDT	Tornado Warning	BIS	Burleigh, Emmons, Morton, Sioux	24 min
Jul 22, 10:02 PM MDT	Tornado Warning	BIS	Adams, Sioux	13 min
Jul 22, 10:07 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Foster, Kidder, Morton, Sheridan, Stutsman and 1 more	68 min
Jul 22, 10:08 PM MDT	Severe Thunderstorm Warning	BIS	McLean, Oliver, Sheridan, Wells	67 min
Jul 22, 10:11 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Emmons, Grant, Logan, Morton, Sioux	64 min
Jul 22, 10:55 PM MDT	High Wind Warning	BIS	Burke, Divide, Dunn, McKenzie, Mountrail, Renville and 1 more	3 hr
Jul 22, 10:59 PM MDT	Areal Flood Advisory	BIS	Dickey, Foster, Kidder, LaMoure, Logan, McIntosh and 2 more	6 hr
Jul 22, 11:08 PM MDT	Severe Thunderstorm Warning	BIS	Dickey, Emmons, LaMoure, Logan, McIntosh, Sioux	52 min
Jul 22, 11:14 PM MDT	Flash Flood Warning	BIS	Foster, Kidder, Stutsman, Wells	6 hr
Jul 22, 11:16 PM MDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	59 min
Jul 22, 11:21 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger	54 min
Jul 22, 11:57 PM MDT	Severe Thunderstorm Warning	BIS	Dickey, Kidder, LaMoure, Logan, McIntosh	63 min
Jul 23, 12:09 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	66 min
Jul 23, 12:15 AM MDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	60 min
Jul 23, 12:28 AM MDT	Areal Flood Advisory	BIS	Adams, Hettinger	4 hr
Jul 23, 12:55 AM MDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	50 min
Jul 23, 1:01 AM MDT	Areal Flood Warning	BIS	Dunn, McKenzie	12 hr
Jul 23, 2:04 AM MDT	Wind Advisory	BIS	Bottineau, Burke, Burleigh, Dickey, Emmons, Foster and 15 more	4 hr
Jul 23, 5:01 AM MDT	Areal Flood Warning	BIS	Foster, Kidder, Stutsman, Wells	8 hr

Nearby

Flash Flood Warnings in North Dakota, 2011 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.