Alert archive / Minnesota / Flash Flood Warnings in 2001
Flash Flood Warning 35, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at Aug 14, 2001, 11:17 PM CDT for Polk County, Minnesota; Grand Forks County, North Dakota. 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
- Aug 14, 2001, 11:17 PM CDT (04:17 UTC)
- Expired
- Aug 15, 2001, 5:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
Counties Polk County, MN, Grand Forks County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 46 km from the middle of the area, began a volume at 04:16 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, 4.3 hours before the alert went out and 281 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.
- Mixed-layer CAPE
- 1193 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1487 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KFGF 150418 FFWFAR MNC119-NDC035-151000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1117 PM CDT TUE AUG 14 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * FLASH FLOOD WARNING FOR... WESTERN POLK COUNTY IN NORTHWESTERN MINNESOTA GRAND FORKS COUNTY IN NORTHEASTERN NORTH DAKOTA * UNTIL 500 AM CDT * AT 1114 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS TRAINING THROUGH CENTRAL GRAND FORKS AND WESTCENTRAL POLK COUNTIES. * RAINFALL RATES OF ONE TO TWO INCHES PER HOUR ARE LIKELY WITH THESE STORMS. SOILS ARE ALREADY SATURATED FROM RECENT HEAVY RAINS...AND ADDITIONAL RAINFALL WILL RUN OFF QUICKLY...CAUSING RAPID STREET...BASEMENT...UNDERPASS...AND OVERLAND FLOODING. * THE FLASH FLOOD WARNING INCLUDES THE CITIES OF LARIMORE...EMERADO...GRAND FORKS...EAST GRAND FORKS...AND MALLORY. 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
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before this flash flood warning went out at Aug 14, 8:30 PM CDT, 2 hours 47 minutes earlier.
Area forecast discussion, Aug 14, 8:30 PM CDT, 2 hours 47 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 830 PM CDT TUE AUG 14 2001 ...CONVECTION RE-DEVELOPING INVOF SFC FRONT IN NORTHEAST ND... THUNDERSTORMS ARE DEVELOPING NEAR DVL NEAR SFC FRONT AND MAXIMIZED SFC MOISTURE FLUX CONVERGENCE. FRONT WILL SAG SOUTH OVERNIGHT...WITH DECENT UPPER LEVEL SUPPORT AHEAD OF SHORTWAVE. WILL MENTION SCATTERED THUNDER IN ALL ZONES OVERNIGHT...AND KEEP FFA GOING IN EASTERN FA. .FGF...FLASH FLOOD WATCH OVERNIGHT FOR NORTHWEST MINNESOTA...FOR AREAS ALONG AND NORTH OF A FOSSTON TO BEMIDJI LINE. KELLENBENZ
In the hours before
Local storm report, Aug 14, 6:40 PM CDT, 4 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
640 PM CDT TUE AUG 14 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0325 PM LANGDON ND WIND DAMAGE
08/14/01 CAVALIER LARGE BRANCHES DOWN
0435 PM 4 NE STEPHEN MN .88 INCH HAIL
08/14/01 MARSHALL
0445 PM GRAFTON ND WIND DAMAGE
08/14/01 WALSH TREES DOWN
0449 PM 3 N DRAYTON ND WIND DAMAGE
08/14/01 PEMBINA TREES DOWN
0505 PM STEPHEN MN WIND DAMAGE
08/14/01 MARSHALL TREE DOWN
0510 PM 3 E KARLSTAD MN .88 INCH HAIL
08/14/01 KITTSON
0535 PM 3 NE RADIUM MN 60 MPH TSTM GUST
08/14/01 MARSHALL
0548 PM 20 NW THIEF RIVER FALLS MN .75 INCH HAIL
08/14/01 PENNINGTON
0609 PM CROOKSTON MN .75 INCH HAIL
08/14/01 POLK
0613 PM 2 W CROOKSTON MN 1.75 INCH HAIL
08/14/01 POLK
0620 PM HUOT MN 1.75 INCH HAIL
08/14/01 RED LAKE
NNNNSpecial weather statement, Aug 14, 7:08 PM CDT, 4 hours 9 minutes before
MNZ004-007-NDZ006>008-014>016-024-026>030-054-150110- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 708 PM CDT TUE AUG 14 2001 ...SEVERE THUNDERSTORM WATCH NUMBER 671 HAS BEEN CANCELLED FOR NORTHEAST NORTH DAKOTA AND EXTREME NORTHWEST MINNESOTA... THE SEVERE THUNDERSTORM WATCH THAT WAS IN EFFECT FOR NORTHEAST NORTH DAKOTA AND EXTREME NORTHWEST MINNESOTA HAS BEEN CANCELLED. THE THREAT OF SEVERE WEATHER HAS MOVED TO THE EAST...SO THE WATCH HAS BEEN CANCELLED. DJK
Local storm report, Aug 14, 10:20 PM CDT, 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
1020 PM CDT TUE AUG 14 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0500 PM 10 NE GRAFTON ND WIND DAMAGE
08/14/01 WALSH TREES DOWN
0504 PM 3 W KENNEDY MN WIND DAMAGE
08/14/01 KITTSON POWER POLES DOWN
0635 PM 5 W HAROLD MN .75 INCH HAIL
08/14/01 POLK WINDS ALSO KNOCKED DOWN
LARGE BRANCHES
0650 PM 4 N SUTTON ND .75 INCH HAIL
08/14/01 GRIGGS
0845 PM 4 SE OBERON ND 1.75 INCH HAIL
08/14/01 BENSON
0855 PM 3 E SHEYENNE ND 1.75 INCH HAIL
08/14/01 EDDY
0900 PM 6 SE SHEYENNE ND 1.75 INCH HAIL
08/14/01 EDDY
0920 PM 5 W NEW ROCKFORD ND .75 INCH HAIL
08/14/01 EDDY
0929 PM 3 SE NEW ROCKFORD ND TORNADO
08/14/01 EDDY
0936 PM 11 E NEW ROCKFORD ND 1 INCH HAIL
08/14/01 EDDY
NNNNThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:16 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 29 min |
| Aug 14, 11:03 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 42 min |
| Aug 14, 11:48 PM CDT | Severe Thunderstorm Warning | FGF | Pennington, Polk, Red Lake | 57 min |
| Aug 14, 8:43 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 47 min |
| Aug 14, 8:51 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 39 min |
| Aug 14, 9:06 PM CDT | Tornado Warning | FGF | Eddy | 24 min |
| Aug 14, 9:12 PM CDT | Severe Thunderstorm Warning | FGF | Nelson | 48 min |
| Aug 14, 9:28 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 47 min |
| Aug 14, 9:28 PM CDT | Tornado Warning | FGF | Eddy | 47 min |
| Aug 14, 9:35 PM CDT | Flash Flood Warning | FGF | Eddy | 6 hr |
| Aug 14, 9:57 PM CDT | Severe Thunderstorm Warning | FGF | Griggs, Nelson | 48 min |
| Aug 14, 10:22 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 38 min |
| Aug 14, 11:21 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs | 39 min |
Nearby
Flash Flood Warnings in Minnesota, 2001Flash Flood Warnings in North Dakota, 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.