Alert archive / Minnesota / Flash Flood Warnings in 2001

Flash Flood Warning 29, NWS Grand Forks, ND

July 31, 2001Beltrami County, Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this flash flood warning at Jul 31, 2001, 11:10 PM CDT for Beltrami County, Lake of the Woods 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 counties it named.

The facts

Issued: Jul 31, 2001, 11:10 PM CDT (04:10 UTC)
Expired: Aug 1, 2001, 3:00 AM CDT
In force: 4 hr
Issued by: NWS Grand Forks, ND
Area: Whole counties

Counties Beltrami County, MN, Lake of the Woods County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 202 km from the middle of the area, began a volume at 04:14 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 00:00Z, 4.2 hours before the alert went out and 122 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: 1223 J/kg
Mixed-layer CIN: -187 J/kg
Mixed-layer LCL: 537 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 558 m²/s²
0-3 km storm-relative helicity: 694 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 26.2

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KFGF 010410
FFWFGF
MNC007-077-010800-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1110 PM CDT TUE JUL 31 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA
  LAKE OF THE WOODS COUNTY IN NORTH CENTRAL MINNESOTA

* UNTIL 300 AM CDT

* AT 1101 PM CDT...NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN CONTINUING OVER
  PORTIONS OF NORTHERN BELTRAMI AND SOUTHERN LAKE OF THE WOODS
  COUNTIES.

* RAINFALL THIS EVENING HAS BEEN EXCESSIVE ACROSS THIS AREA. AN
  OBSERVER ONE MILE SOUTH OF THORHULT REPORTED 7.60 INCHES OF RAIN
  HAD FALLEN SINCE LATE AFTERNOON.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN THE DANGERS OF FLASH FLOODING
ARE HARD TO RECOGNIZE. PLEASE DO NOT DRIVE YOUR VEHICLE INTO WATER
OF UNKNOWN DEPTH. ONE OR TWO FEET OF WATER WI#LL FLOAT MOST CARS
DOWNSTREAM.


$$
FISCHER


&

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 7:30 PM CDT	Severe Thunderstorm Warning	FGF	Polk, Red Lake	30 min
Jul 31, 7:58 PM CDT	Severe Thunderstorm Warning	FGF	Polk	32 min
Jul 31, 8:08 PM CDT	Severe Thunderstorm Warning	FGF	Clearwater	52 min
Jul 31, 8:23 PM CDT	Severe Thunderstorm Warning	FGF	Pennington	37 min
Jul 31, 8:43 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	32 min
Jul 31, 9:00 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Pennington	30 min
Jul 31, 10:05 PM CDT	Flash Flood Warning	FGF	Clearwater	5 hr

Nearby

Flash Flood Warnings in Minnesota, 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; radar from the NEXRAD Level II archive.