Alert archive / North Dakota / Flash Flood Warnings in 2001

Flash Flood Warning 7, NWS Bismarck, ND

July 26, 2001Rolette County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jul 26, 2001, 11:17 PM CDT for Rolette County, North Dakota. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 26, 2001, 11:17 PM CDT (04:17 UTC)
Expired: Jul 27, 2001, 2:15 AM CDT
In force: 3 hr
Issued by: NWS Bismarck, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Rolette County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 4.3 hours before the alert went out and 235 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: 1482 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 906 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KBIS 270423
FFWBIS
NDC079-270715-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1117 PM CDT THU JUL 26 2001

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ROLETTE COUNTY IN NORTH CENTRAL NORTH DAKOTA

* UNTIL 215 AM CDT

* AT 1117 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN ACROSS THE NORTHERN HALF OF ROLETTE COUNTY...FROM DUNSEITH
  NORTH TO THE CANADIAN BORDER AND EAST THROUGH THE INTERNATIONAL
  PEACE GARDEN TO BELCOURT. 

*  EXCESSIVE RAINFALL...WITH 2 TO 4 INCHES POSSIBLE...WILL BE NEAR
   ...BELCOURT...ROLLA...ST JOHN DUNSEITH AND THE INTERNATIONAL
   PEACE GARDENS THROUGH 215 AM CDT. 

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

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

LAT...LON 4899 10013 4857 10010 4857 9957 4897 9958
WA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 7:21 PM CDT	Severe Thunderstorm Warning	BIS	Morton	54 min
Jul 26, 8:46 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	59 min
Jul 26, 9:06 PM CDT	Tornado Warning	BIS	Grant	24 min
Jul 26, 9:26 PM CDT	Flash Flood Warning	BIS	Bowman, Grant, Hettinger	3 hr
Jul 26, 9:39 PM CDT	Tornado Warning	BIS	Grant	51 min
Jul 26, 10:15 PM CDT	Flash Flood Warning	BIS	Bottineau	3 hr
Jul 26, 10:31 PM CDT	Flash Flood Warning	BIS	Burleigh, Morton	3 hr
Jul 27, 12:18 AM CDT	Flash Flood Warning	BIS	Burleigh, Grant, Hettinger, Morton	6 hr
Jul 27, 1:02 AM CDT	Flash Flood Warning	BIS	Bottineau, Rolette	5 hr

Nearby

Flash Flood Warnings in North Dakota, 2001 Every flash flood warning in 2001

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.