Alert archive / Minnesota / Flash Flood Warnings in 2001

Flash Flood Warning 26, NWS Grand Forks, ND

July 31, 20014 counties in Minnesota

NWS Grand Forks, ND issued this flash flood warning at Jul 31, 2001, 6:05 PM CDT for 4 counties in Minnesota. It was in force for 6 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, 6:05 PM CDT (23:05 UTC)
Expired
Aug 1, 2001, 12:00 AM CDT
In force
6 hr
Issued by
NWS Grand Forks, ND
Area
Whole counties

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

The radar

The Fargo/Grand Forks radar (KMVX), 171 km from the middle of the area, began a volume at 23:06 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, 11.1 hours before the alert went out and 163 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 2001-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2851 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 2001-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.193958Sfc1 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
2851 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
485 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.0
Supercell composite
7.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KFGF 312306
FFWFGF
MNC007-077-089-135-010500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
605 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
  EASTERN MARSHALL COUNTY IN NORTHWESTERN MINNESOTA
  ROSEAU COUNTY IN NORTHWESTERN MINNESOTA

* UNTIL 1200 AM CDT

* AT 558 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LARGE AREA OF THUNDERSTORMS CONTAINING HEAVY RAIN PUSHING INTO
  ROSEAU...EASTERN MARSHALL...LAKE OF THE WOODS...AND NORTHERN
  BELTRAMI COUNTIES.

* RADAR INDICATES THAT THESE AREAS HAVE RECEIVED TWO OR MORE
  INCHES OF RAINFALL THUS FAR TODAY. ADDITIONAL AMOUNTS OF ONE TO
  TWO INCHES ARE LIKELY OVER THE NEXT FEW HOURS...AND SATURATED
  SOILS WILL LEAD TO RAPID RUNOFF. SOME COMMUNITIES INCLUDED IN THE
  FLASH FLOOD WARNING ARE ROSEAU...MIDDLE RIVER...BAUDETTE...AND
  FOURTOWN.

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 WILL FLOAT MOST CARS
DOWNSTREAM.

$$
FISCHER


&
NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 4:11 AM CDTSevere Thunderstorm WarningFGFNorman, Polk34 min
Jul 31, 4:11 AM CDTSevere Thunderstorm WarningFGFPennington, Red Lake34 min
Jul 31, 4:11 AM CDTSevere Thunderstorm WarningFGFMarshall34 min
Jul 31, 4:47 AM CDTSevere Thunderstorm WarningFGFPennington, Polk, Red Lake28 min
Jul 31, 4:47 AM CDTSevere Thunderstorm WarningFGFBeltrami, Kittson, Marshall, Roseau28 min
Jul 31, 4:47 AM CDTSevere Thunderstorm WarningFGFClearwater28 min
Jul 31, 5:37 AM CDTSevere Thunderstorm WarningFGFBeltrami, Lake of the Woods38 min
Jul 31, 11:21 AM CDTSevere Thunderstorm WarningFGFPolk39 min
Jul 31, 11:57 AM CDTSevere Thunderstorm WarningFGFPennington, Polk, Red Lake48 min
Jul 31, 12:11 PM CDTSevere Thunderstorm WarningFGFMarshall64 min
Jul 31, 12:43 PM CDTSevere Thunderstorm WarningFGFPennington32 min
Jul 31, 12:46 PM CDTSevere Thunderstorm WarningFGFBeltrami, Lake of the Woods59 min
Jul 31, 1:20 PM CDTSevere Thunderstorm WarningFGFPennington, Polk25 min
Jul 31, 1:35 PM CDTSevere Thunderstorm WarningFGFMarshall40 min
Jul 31, 1:44 PM CDTSevere Thunderstorm WarningFGFLake of the Woods31 min
Jul 31, 2:15 PM CDTSevere Thunderstorm WarningFGFBeltrami, Marshall30 min
Jul 31, 4:35 PM CDTFlash Flood WarningFGFMarshall6 hr
Jul 31, 4:39 PM CDTFlash Flood WarningFGFPolk4 hr
Jul 31, 4:54 PM CDTSevere Thunderstorm WarningFGFPolk51 min
Jul 31, 5:16 PM CDTSevere Thunderstorm WarningFGFLake of the Woods, Roseau44 min
Jul 31, 5:39 PM CDTTornado WarningFGFBeltrami, Lake of the Woods36 min
Jul 31, 6:13 PM CDTSevere Thunderstorm WarningFGFClay32 min
Jul 31, 6:15 PM CDTTornado WarningFGFLake of the Woods30 min
Jul 31, 6:23 PM CDTFlash Flood WarningFGFPennington, Polk, Red Lake6 hr
Jul 31, 6:24 PM CDTSevere Thunderstorm WarningFGFNorman36 min
Jul 31, 6:54 PM CDTSevere Thunderstorm WarningFGFPolk, Red Lake36 min
Jul 31, 6:58 PM CDTSevere Thunderstorm WarningFGFNorman32 min

Nearby

Flash Flood Warnings in Minnesota, 2001Every 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.