Alert archive / North Dakota / Flash Flood Warnings in 2011

Flash Flood Warning 20, NWS Bismarck, ND

June 25, 2011Pierce County, Wells County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jun 25, 2011, 8:43 PM CDT for Pierce County, Wells County, North Dakota. It was in force for 4 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 25, 2011, 8:43 PM CDT (01:43 UTC)
Expired: Jun 26, 2011, 12:16 AM CDT
In force: 4 hr
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Flood severity: None

Counties Pierce County, ND, Wells County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.7 hours before the alert went out and 164 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: 1619 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1448 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

050 
WGUS53 KBIS 260143
FFWBIS
NDC069-103-260730-
/O.NEW.KBIS.FF.W.0020.110626T0143Z-110626T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
843 PM CDT SAT JUN 25 2011

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN WELLS COUNTY IN SOUTH CENTRAL NORTH DAKOTA...
  PIERCE COUNTY IN NORTH CENTRAL NORTH DAKOTA...

* UNTIL 230 AM CDT

* AT 841 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. DOPPLER RADAR ESTIMATES THAT ONE TO TWO INCHES HAS    
  FALLEN IN THE WARNED AREA...WITH MORE SHOWERS AND THUNDERSTORMS    
  EXPECTED TO PRODUCE MORE RAINFALL OVER THE NEXT FEW HOURS. 

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. FLASH FLOODING IS EXPECTED TO OCCUR OVER MAINLY RURAL AREAS
  OF NORTHERN WELLS AND PIERCE COUNTIES...INCLUDING THE TOWNS OF
  BALTA...BREMEN...EMRICK...FESSENDEN...HAMBERG...HARVEY...HEIMDAL...
  MANFRED...RUGBY...SELZ...SILVA AND WELLSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

&&

LAT...LON 4838 9947 4836 9950 4836 9983 4803 9984
      4799 9980 4786 9980 4785 9930 4769 9928
      4767 9925 4759 9926 4750 9991 4845 10024
      4851 9952

$$

SIMOSKO

1 follow-up statement

403 
WGUS73 KBIS 260516
FFSBIS

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1216 AM CDT SUN JUN 26 2011

NDC069-103-260529-
/O.CAN.KBIS.FF.W.0020.000000T0000Z-110626T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIERCE ND-WELLS ND-
1216 AM CDT SUN JUN 26 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN WELLS AND
PIERCE COUNTIES IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. NO 
FLASH FLOODING IMPACTS WERE REPORTED BY LAW ENFORCEMENT OFFICIALS.

LAT...LON 4838 9947 4836 9950 4836 9983 4803 9984
      4799 9980 4786 9980 4785 9930 4769 9928
      4767 9925 4759 9926 4750 9991 4845 10024
      4851 9952

$$

TM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:17 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	28 min
Jun 25, 7:36 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	54 min
Jun 25, 7:42 PM CDT	Severe Thunderstorm Warning	BIS	Pierce	63 min
Jun 25, 7:57 PM CDT	Severe Thunderstorm Warning	BIS	Wells	63 min
Jun 25, 8:04 PM CDT	Severe Thunderstorm Warning	BIS	Wells	56 min
Jun 25, 8:47 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	58 min
Jun 25, 9:02 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	58 min
Jun 25, 9:06 PM CDT	Severe Thunderstorm Warning	BIS	Morton	54 min
Jun 25, 9:57 PM CDT	Areal Flood Advisory	BIS	Burleigh, Morton	53 min
Jun 25, 10:00 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	27 min
Jun 25, 10:04 PM CDT	Severe Thunderstorm Warning	BIS	Foster	26 min
Jun 26, 9:40 AM CDT	Severe Thunderstorm Warning	BIS	LaMoure	65 min
Jun 26, 10:22 AM CDT	Areal Flood Advisory	BIS	LaMoure, Logan, McIntosh, Stutsman	6 hr
Jun 26, 2:55 PM CDT	Flash Flood Warning	BIS	Stutsman	3 hr
Jun 26, 5:44 PM CDT	Areal Flood Warning	BIS	Stutsman	43 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.