Alert archive / Minnesota / Flash Flood Warnings in 2002

Flash Flood Warning 40, NWS Grand Forks, ND

August 26, 2002Red Lake County, Minnesota

NWS Grand Forks, ND issued this flash flood warning at Aug 26, 2002, 5:04 PM CDT for Red Lake County, Minnesota. 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
Aug 26, 2002, 5:04 PM CDT (22:04 UTC)
Expired
Aug 26, 2002, 9:00 PM CDT
In force
4 hr
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Red Lake County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 96 km from the middle of the area, began a volume at 22:08 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

International Fa, MN (KINL), launched 12:00Z, 10.1 hours before the alert went out and 225 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-pSkew-T log-p diagram, International Fa, MN at 12:00Z on 2002-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 2002-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
42 J/kg
Mixed-layer CIN
-300 J/kg
Mixed-layer LCL
1460 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KFGF 262204
FFWFAR
MNC125-270200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
502 PM CDT MON AUG 26 2002

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  RED LAKE COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 900 PM CDT.

* AT 458 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED       
  THUNDERSTORMS WITH HEAVY RAIN CONTINUE TO DEVELOP OVER WESTERN AND 
  CENTRAL RED LAKE COUNTY.  THE STORMS WERE MOVING EAST AT 15 MPH.
 
* DOROTHY...RED LAKE...TERREBONNE...PLUMMER AND BROOKS WILL BE 
  AFFECTED BY THE HEAVY RAIN. RAINFALL AMOUNTS OF 2 TO 4 INCHES
  WILL BE LIKELY CAUSING FLOODING OF ROADS AND URBAN AREAS.

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR 
VEHICLE INTO WATER OF UNKNOWN DEPTH. ONE OR TWO FEET OF WATER WILL 
FLOAT MOST CARS DOWNSTREAM.

LAT...LON 4796 9634 4779 9630 4779 9590 4791 9591

06



NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 3:08 PM CDTSevere Thunderstorm WarningFGFPolk42 min
Aug 26, 3:41 PM CDTTornado WarningFGFPolk49 min
Aug 26, 3:46 PM CDTSevere Thunderstorm WarningFGFPennington, Red Lake44 min
Aug 26, 3:51 PM CDTTornado WarningFGFPennington, Red Lake39 min
Aug 26, 4:30 PM CDTTornado WarningFGFPolk, Red Lake45 min
Aug 26, 4:31 PM CDTSevere Thunderstorm WarningFGFPennington44 min
Aug 26, 4:33 PM CDTSevere Thunderstorm WarningFGFBecker, Otter Tail42 min
Aug 26, 4:50 PM CDTSevere Thunderstorm WarningFGFRoseau40 min
Aug 26, 5:16 PM CDTTornado WarningFGFPolk44 min
Aug 26, 5:17 PM CDTSevere Thunderstorm WarningFGFRed Lake43 min
Aug 26, 5:50 PM CDTSevere Thunderstorm WarningFGFMahnomen, Norman55 min
Aug 26, 5:59 PM CDTSevere Thunderstorm WarningFGFPolk46 min
Aug 26, 6:26 PM CDTSevere Thunderstorm WarningFGFLake of the Woods49 min
Aug 26, 6:44 PM CDTSevere Thunderstorm WarningFGFBecker, Clay, Mahnomen, Norman61 min

Nearby

Flash Flood Warnings in Minnesota, 2002Every flash flood warning in 2002

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.