Alert archive / North Dakota / Flash Flood Warnings in 2011

Flash Flood Warning 37, NWS Bismarck, ND

July 30, 2011Emmons County, Logan County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jul 30, 2011, 4:42 AM CDT for Emmons County, Logan County, North Dakota. It was in force for 6 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: Jul 30, 2011, 4:42 AM CDT (09:42 UTC)
Expired: Jul 30, 2011, 10:30 AM CDT
In force: 6 hr
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Flood severity: None

Counties Emmons County, ND, Logan County, ND

The radar

The Bismarck radar (KBIS), 92 km from the middle of the area, began a volume at 09:41 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, 9.7 hours before the alert went out and 88 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: 478 J/kg
Mixed-layer CIN: -202 J/kg
Mixed-layer LCL: 2027 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

074 
WGUS53 KBIS 300942
FFWBIS
NDC029-047-301530-
/O.NEW.KBIS.FF.W.0037.110730T0942Z-110730T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
442 AM CDT SAT JUL 30 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LOGAN COUNTY IN SOUTHEAST NORTH DAKOTA...
  NORTHEASTERN EMMONS COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 1030 AM CDT

* AT 441 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. DOPPLER RADAR ESTIMATES 2 TO 3 INCHES OF RAIN HAS     
  FALLEN OVER PORTIONS OF THE WARNING AREA...AND AN ADDITIONAL 1 TO  
  2 INCHES OF RAIN IS POSSIBLE.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO   
OCCUR. FLASH FLOODING IS EXPECTED TO OCCUR OVER RURAL AND URBAN 
AREAS OF LOGAN AND NORTHEASTERN EMMONS COUNTIES...INCLUDING THE 
TOWNS OF BURNSTAD...FREDONIA...GACKLE...KINTYRE AND NAPOLEON.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...BUFFALO 
CREEK...BEAVER CREEK...LONG LAKE CREEK...GOOSE CREEK AND COTTONWOOD 
CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...
COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND
OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

&&

LAT...LON 4663 10001 4663 9904 4629 9904 4628 9987
      4627 9988

$$

KINNEY

2 follow-up statements

279 
WGUS73 KBIS 301215
FFSBIS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
715 AM CDT SAT JUL 30 2011

NDC029-047-301530-
/O.CON.KBIS.FF.W.0037.000000T0000Z-110730T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EMMONS ND-LOGAN ND-
715 AM CDT SAT JUL 30 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LOGAN AND NORTHEASTERN
EMMONS COUNTIES UNTIL 1030 AM CDT...

AT 712 AM CDT...DOPPLER RADAR INDICATED THAT 1 TO 3 INCHES OF 
RAINFALL HAD FALLEN OVER THE WARNED AREA. LOCAL LAW ENFORCEMENT 
OFFICIALS REPORTED THAT A BROAD AREA OF OVERLAND FLOODING WAS 
OCCURRING IN LOGAN COUNTY...ESPECIALLY IN THE NAPOLEON AREA.

FLOODING IS EXPECTED TO CONTINUE OVER MAINLY RURAL AREAS OF LOGAN 
AND NORTHEASTERN EMMONS COUNTIES...INCLUDING THE TOWNS OF 
BURNSTAD...FREDONIA...GACKLE...KINTYRE AND NAPOLEON.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
BUFFALO CREEK...BEAVER CREEK...LONG LAKE CREEK...GOOSE CREEK AND
COTTONWOOD CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THESE STORMS CAUSED FLOODING OF SMALL CREEKS 
AND STREAMS. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE 
BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE ALSO SUBJECT 
TO FLOODING.

&&

LAT...LON 4663 10001 4663 9904 4629 9904 4628 9987
      4627 9988

$$

TM

691 
WGUS73 KBIS 301455
FFSBIS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
955 AM CDT SAT JUL 30 2011

NDC029-047-301506-
/O.CAN.KBIS.FF.W.0037.000000T0000Z-110730T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
EMMONS ND-LOGAN ND-
955 AM CDT SAT JUL 30 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR LOGAN AND
NORTHEASTERN EMMONS COUNTIES IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

ROADS IN LOW LYING AREAS...AND ROADS THAT WERE PREVIOUSLY BARRICADED 
BECAUSE OF PREVIOUS FLOODING THIS SEASON...MAY STILL HAVE WATER IN 
NEARBY DITCHES OR COVERING THE ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE INTO WATER COVERED ROADS. THE UNSEEN PORTION OF THE  
ROAD MAY BE WASHED OUT.

IF FLOODING WAS OBSERVED PLEASE RELAY YOUR REPORT TO LOCAL LAW
ENFORCEMENT AND TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT
701-223-4582.

&&

LAT...LON 4663 10001 4663 9904 4629 9904 4628 9987
      4627 9988

$$

VINING

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 7:30 PM CDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	60 min
Jul 29, 8:39 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	51 min
Jul 29, 9:25 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	65 min
Jul 29, 9:58 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	62 min
Jul 29, 10:26 PM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	45 min
Jul 29, 10:41 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail, Ward	64 min
Jul 29, 10:47 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	58 min
Jul 29, 11:06 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver	54 min
Jul 29, 11:33 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	57 min
Jul 29, 11:43 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	29 min
Jul 30, 12:03 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry	27 min
Jul 30, 12:09 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman, Wells	51 min
Jul 30, 12:16 AM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	44 min
Jul 30, 12:27 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	31 min
Jul 30, 12:53 AM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman, Wells	67 min
Jul 30, 2:34 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	56 min
Jul 30, 2:48 AM CDT	Areal Flood Advisory	BIS	Burleigh, Morton, Oliver	3 hr
Jul 30, 3:08 AM CDT	Flash Flood Warning	BIS	Burleigh, Morton	6 hr
Jul 30, 3:24 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh	66 min
Jul 30, 4:05 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder, Logan, Stutsman	55 min
Jul 30, 4:45 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan	60 min
Jul 30, 5:32 AM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	58 min
Jul 30, 9:19 AM CDT	Areal Flood Advisory	BIS	Burleigh, Morton	3 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.