Alert archive / North Dakota / Flash Flood Warnings in 2004

Flash Flood Warning 8, NWS Bismarck, ND

August 26, 2004Rolette County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Aug 26, 2004, 12:51 AM 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 as issued.

The facts

Issued: Aug 26, 2004, 12:51 AM CDT (05:51 UTC)
Expired: Aug 26, 2004, 3:45 AM CDT
In force: 3 hr
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Rolette County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 5.9 hours before the alert went out and 231 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: 1559 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1549 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KBIS 260554
FFWBIS
NDC079-260845-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1251 AM CDT THU AUG 26 2004

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

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

* UNTIL 345 AM CDT

* AT 1251 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN HAD FALLEN OVER WESTERN ROLETTE COUNTY. ADDITIONAL THUNDERSTORMS
  WITH HEAVY RAIN WILL MOVE THROUGH THE AREA PRODUCING LOCALIZED
  FLASH FLOODING.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
  RURAL WESTERN ROLETTE COUNTY AT 110 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.

LAT...LON 4887 10018 4864 10011 4865 9977 4893 9983

$$
RSL

1 follow-up statement

000 
WGUS73 KBIS 260701
FFSBIS
NDC079-260845-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
158 AM CDT THU AUG 26 2004

...A FLASH FLOOD WARNING CONTINUES FOR WESTERN ROLETTE COUNTY UNTIL 
345 AM CDT...

AT 158 AM CDT DOPPLER RADAR CONTINUED TO INDICATE MODERATE RAINFALL
OVER WESTERN ROLETTE COUNTY...WHERE RADAR INDICATED 3 TO 5 INCHES OF 
RAIN HAD FALLEN IN THE LAST 4 HOURS. ALTHOUGH THE SHOWERS AND 
THUNDERSTORMS IN THE AREA ARE BEGINNING TO WEAKEN...A FLASH FLOOD 
THREAT WILL REMAIN DUE TO RUNOFF AND ADDITIONAL RAINFALL.

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.

$$
RSL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 25, 7:00 PM CDT	Tornado Warning	BIS	Burleigh	45 min
Aug 25, 7:02 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	58 min
Aug 25, 7:52 PM CDT	Tornado Warning	BIS	Stutsman	38 min
Aug 25, 8:00 PM CDT	Severe Thunderstorm Warning	BIS	Ward	60 min
Aug 25, 8:29 PM CDT	Tornado Warning	BIS	Stutsman	46 min
Aug 25, 8:58 PM CDT	Tornado Warning	BIS	Ward	47 min
Aug 25, 9:17 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	43 min
Aug 25, 9:51 PM CDT	Severe Thunderstorm Warning	BIS	Ward	54 min
Aug 26, 5:43 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	62 min
Aug 26, 6:18 PM CDT	Severe Thunderstorm Warning	BIS	Emmons	42 min

Nearby

Flash Flood Warnings in North Dakota, 2004 Every flash flood warning in 2004

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.