National Weather Service United States Department of Commerce

Latest CPC Outlooks

Here are the latest Climate Prediction Center outlooks. Read More >

Overview

A strong upper level low pushing east along the Canadian border helped set the environment for severe weather on Wednesday, August 3rd, 2016. Thunderstorms produced tornadoes, damaging winds, baseball size hail, as well as flash flooding across parts of eastern North Dakota and northwestern Minnesota. The tabs on this page contain information regarding this event. 

 


Storm Reports

Below is a storm report map as well as the local storm report summary text product for this event.

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1246 PM CDT THU AUG 04 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0545 PM     TORNADO          6 S PERTH               48.63N 99.46W 
08/03/2016                   TOWNER             ND   STORM CHASER    

            WIDE TORNADO OBSERVED TRACKING ACROSS THE ROLETTE-TOWNER 
            COUNTY LINE NEAR THE COMMUNITY OF AGATE. TIME AND 
            LOCATION BASED ON STREAMING VIDEO AND SOCIAL MEDIA 
            REPORT.

0555 PM     TSTM WND DMG     4 W BISBEE              48.63N 99.47W 
08/03/2016                   TOWNER             ND   TRAINED SPOTTER 

            TRANSFORMER LINES AND POWER POLES DOWN. TIME ESTIMATED.

0559 PM     TORNADO          1 N BISBEE              48.64N 99.38W 
08/03/2016                   TOWNER             ND   STORM CHASER    

            INTERMITTENT TOUCHDOWNS REPORTED AND FILMED ACROSS 
            SOUTHERN GRAINFIELD TOWNSHIP. 

0623 PM     TSTM WND DMG     6 ENE BISBEE            48.66N 99.26W 
08/03/2016                   TOWNER             ND   STORM CHASER    

            POWER LINES DOWN AND LOWER POLE SNAPPED ALONG HWY 281... 
            1 TO 2 MILES NORTH OF INTERSECTION WITH HWY 66. VIDEO AND
            REPORTS POSTED VIA SOCIAL MEDIA.

0645 PM     HAIL             4 W BISBEE              48.63N 99.47W 
08/03/2016  E2.75 INCH       TOWNER             ND   TRAINED SPOTTER 

            LARGE HAIL ALONG HIGHWAY 66.

0655 PM     TSTM WND GST     4 N CANDO               48.55N 99.20W 
08/03/2016  M60.00 MPH       TOWNER             ND   TRAINED SPOTTER 

            MEASURED BY MOBILE EQUIPMENT.

0657 PM     HEAVY RAIN       3 W BISBEE              48.63N 99.44W 
08/03/2016  U0.00 INCH       TOWNER             ND   TRAINED SPOTTER 

            DITCHES FLOWING FULL WITH WATER BEGINNING TO RUN UP ON 
            HIGHWAY 66.

0705 PM     HEAVY RAIN       ROCKLAKE                48.79N 99.25W 
08/03/2016  U0.00 INCH       TOWNER             ND   BROADCAST MEDIA 

            HEAVY RAIN AND STREET FLOODING REPORTED.

0720 PM     TSTM WND GST     1 WNW HAMPDEN           48.54N 98.67W 
08/03/2016  M61.00 MPH       CAVALIER           ND   MESONET         

            PEAK WIND MEASURED AT THE HAMPDEN RAWS STATION. TIME 
            ESTIMATED BASED ON RADAR.

0723 PM     HAIL             CANDO                   48.49N 99.20W 
08/03/2016  E1.00 INCH       TOWNER             ND   TRAINED SPOTTER 

            QUARTER SIZED HAIL AND ADDITIONAL HEAVY RAIN.

0726 PM     HAIL             CANDO                   48.49N 99.20W 
08/03/2016  M1.50 INCH       TOWNER             ND   PUBLIC          

            REPORT AND PHOTO POSTED VIA SOCIAL MEDIA.

0730 PM     FLASH FLOOD      3 W BISBEE              48.63N 99.44W 
08/03/2016                   TOWNER             ND   LAW ENFORCEMENT 

            HIGHWAY 66 CLOSED DUE TO WATER FLOWING ACROSS. AREA 
            FIELDS AND DITCHES FLOODING TGROUHGOUT GRAINFIELD... 
            SORENSON....NEW CITY AND GERRARD TOWNSHIPS.

0731 PM     TSTM WND DMG     LANGDON                 48.76N 98.37W 
08/03/2016                   CAVALIER           ND   TRAINED SPOTTER 

            A FEW LARGE TREE BRANCHES AND LIMBS BROKEN DOWN AROUND 
            TOWN. AT LEAST ON 12 INCH DIAMETER TREE SNAPPED NEAR THE 
            GROUND.

0733 PM     TSTM WND GST     1 E LANGDON             48.76N 98.35W 
08/03/2016  M58.00 MPH       CAVALIER           ND   MESONET         

            PEAK WIND MEASURED AT A PERSONAL WEATHER STATION.

0738 PM     HAIL             10 W MINNEWAUKAN        48.07N 99.47W 
08/03/2016  E1.00 INCH       BENSON             ND   TRAINED SPOTTER 

            QUARTER SIZED HAIL AND SMALLER WITH HEAVY RAIN

0740 PM     HAIL             4 W MAZA                48.39N 99.29W 
08/03/2016  M2.00 INCH       TOWNER             ND   TRAINED SPOTTER 

            REPORT AND PHOTO POSTED VIA SOCIAL MEDIA.

0828 PM     FUNNEL CLOUD     3 W NEW ROCKFORD        47.68N 99.20W 
08/03/2016                   EDDY               ND   TRAINED SPOTTER 

            BRIEF FUNNEL CLOUD LOWERINGS VIEWED WEST OF TOWN.

0829 PM     FUNNEL CLOUD     3 NW DEVILS LAKE        48.14N 98.92W 
08/03/2016                   RAMSEY             ND   TRAINED SPOTTER 

            PERSISTENT WALL CLOUD WITH BRIEF FUNNELS EVIDENT. LOCATED
            JUST A MILE OR 2 NORTHWEST OF THE CITY LIMITS.

0835 PM     HAIL             1 N DEVILS LAKE         48.13N 98.87W 
08/03/2016  E0.88 INCH       RAMSEY             ND   TRAINED SPOTTER 

0838 PM     FUNNEL CLOUD     2 SSE SHEYENNE          47.80N 99.10W 
08/03/2016                   EDDY               ND   STORM CHASER    

            PERSISTENT WALL CLOUD WITH FUNNEL CLOUD VIEWED AND 
            PHOTOGRAPHED. REPORT AND PHOTO POSTED VIA SOCIAL MEDIA.

0841 PM     TORNADO          2 ENE DEVILS LAKE       48.12N 98.83W 
08/03/2016                   RAMSEY             ND   TRAINED SPOTTER 

            TWIN TORNADO VORTICES VIEWED...AND FILMED JUST NORTH TO 
            NORTHEAST OF DEVILS LAKE. MULTIPLE REPORTS RECEIVED FROM 
            CHASERS AND SPOTTERS. TORNADOES LASTED FOR 2 TO THREE 
            MINUTES.

0900 PM     TSTM WND GST     7 WNW FOREST RIVER      48.26N 97.61W 
08/03/2016  M57.00 MPH       WALSH              ND   MESONET         

            PEAK WIND MEASURED AT THE NDAWN STATION.

0916 PM     TORNADO          10 WSW HAMAR            47.79N 98.77W 
08/03/2016                   EDDY               ND   TRAINED SPOTTER 

            TORNADO TRACKING INTO FAR SOUTHWEST EDDY TOWNSHIP... 
            ABOUT 6 SSW OF WARWICK. 

1028 PM     TSTM WND GST     5 WNW GRAND FORKS       47.94N 97.17W 
08/03/2016  M59.00 MPH       GRAND FORKS        ND   ASOS            

            PEAK WIND MEASURED AT THE GRAND FORKS INTERNATIONAL 
            AIRPORT.

1042 PM     TSTM WND GST     GRAND FORKS AFB         47.96N 97.38W 
08/03/2016  M62.00 MPH       GRAND FORKS        ND   OTHER FEDERAL   

            PEAK WIND MEASURED AT THE GFAFB. 

1049 PM     HEAVY RAIN       GRAND FORKS             47.92N 97.07W 
08/03/2016  E0.00 INCH       GRAND FORKS        ND   AMATEUR RADIO   

            STREET FLOODING AND MINOR UNDERPASS FLOODING REPORTED. 

1110 PM     TSTM WND GST     4 N MCLEOD              46.45N 97.30W 
08/03/2016  M69.00 MPH       RANSOM             ND   MESONET         

            PEAK WIND MEASURED AT THE RAWS STATION. TIME ESTIMATED 
            BASED ON RADAR.

1140 PM     FLASH FLOOD      GRAND FORKS             47.92N 97.07W 
08/03/2016                   GRAND FORKS        ND   NWS EMPLOYEE    

            AREAS OF UNIVERSITY AND DEMERS AVENUES...AND NEARBY 
            PORTIONS OF WASHINGTON STREET WERE FLOODED AND 
            IMPASSABLE. UNDERPASS FLOODED AND BLOCKED TO TRAFFIC. 
            OUTLYING AREAS ON 42ND STREET WERE ALSO FLOODED. 

1143 PM     TSTM WND DMG     5 SW LISBON             46.39N 97.76W 
08/03/2016                   RANSOM             ND   PUBLIC          

            LOCALIZED AREA OF DAMAGE. PARTIAL ROOF DAMAGE TO HOME AND
            TWO LARGE TREES DOWN. TIME APPROXIMATED BASED ON RADAR. 

1145 PM     FLASH FLOOD      2 ENE EAST GRAND FORKS  47.94N 96.98W 
08/03/2016                   POLK               MN   NWS STORM SURVEY

            FIELD AND FARM ACCESS ROADS FLOODED NEAR CR17 AND HIGHWAY
            2. 

1201 AM     TSTM WND GST     1 NW GWINNER            46.23N 97.67W 
08/04/2016  E60.00 MPH       SARGENT            ND   TRAINED SPOTTER 

            REPORT POSTED ONLINE.

0145 AM     TSTM WND DMG     7 NNE DETROIT LAKES     46.91N 95.79W 
08/04/2016                   BECKER             MN   PUBLIC          

            ALONG HWY 113 BETWEEN RICHWOOD AND DETROIT LAKES THERE 
            WAS AN AREA OF WIND DAMAGE. TWO SEMI-TRUCKS WERE 
            OVERTURNED ALONG WITH DAMAGE TO GRAIN BINS. THIS 
            INFORMATION IS PRELIMINARY AND MAY BE UPDATED PENDING 
            STORM SURVEY. 

0211 AM     TSTM WND GST     PARK RAPIDS             46.92N 95.06W 
08/04/2016  M58.00 MPH       HUBBARD            MN   ASOS            

            PEAK GUST AT PARK RAPIDS AIRPORT ASOS

0226 AM     TSTM WND DMG     MENAHGA                 46.75N 95.10W 
08/04/2016                   WADENA             MN   TRAINED SPOTTER 

            ROOF BLOWN OFF BUILDING...ESTIMATED 70MPH.

0230 AM     TSTM WND DMG     10 SE PARK RAPIDS       46.82N 94.91W 
08/04/2016                   HUBBARD            MN   PUBLIC          

            NUMEROUS LARGE TREES DOWN AT DUCK LAKE, BLOCKING ROADS. 
            TIME APPROXIMATE FROM RADAR. FACEBOOK INFO FROM DUCK LAKE
            PAGE. 

 


Rain Reports

Below is a radar estimated rainfall graphic for Wednesday's event valid from 5:00 AM on 8/3 to  5:00 AM on 8/4.

 

...Rainfall Reports...

The following are rainfall reports from thunderstorms that occurred
Wednesday night into Thursday morning. Rainfall amounts of 0.25 inch
or more are listed below. 

Location                     Amount                          
Goodridge MN 12 NNW          4.33 in                         
Fertile MN                   3.75 in                         
Wilton MN 3 SE               2.61 in                         
Brooks MN 3 WNW (Lost R)     2.60 in                         
Laporte MN 2 WNW             2.40 in                         
Itasca MN (DNR)              2.32 in                         
Thief River Falls MN         2.30 in                         
Waskish MN 4 NE (Tamarac R)  2.26 in                         
Thorhult MN                  2.25 in                         
Mahnomen MN (AP)             2.19 in                         
Thief River Falls MN (Red Lk 2.17 in                         
Mavie MN 2 S (NDAWN)         2.16 in                         
Fosston MN (AP)              2.13 in                         
Warren MN 3 ENE (Morkassel)  2.11 in                         
Holt MN 6 E (Thief River)    2.02 in                         
Warren MN 3 SW (NDAWN)       1.99 in                         
Mavie MN 5 SSE               1.96 in                         
Poland ND 1 E                1.96 in                         
Grand Forks ND (NWS)         1.95 in                         
Red Lake Falls MN            1.89 in                         
Bagley MN 23 S (Long Lost Lk 1.87 in                         
Alvarado MN (Snake R)        1.82 in                         
Mahnomen MN 1 SE (Wild Rice  1.82 in                         
Bemidji MN (State Park)      1.80 in                         
Wilton MN 6 NE               1.79 in                         
Crookston MN                 1.76 in                         
Grand Forks ND (AFB)         1.75 in                         
Saum MN 3 WSW (Battle R)     1.75 in                         
Thief River Falls MN 5 N (Th 1.73 in                         
Lancaster MN                 1.72 in                         
Hallock MN (Two Rivers)      1.70 in                         
Kelliher MN (DNR)            1.70 in                         
Ponsford MN 10 N             1.65 in                         
St. Thomas ND (NDAWN)        1.62 in                         
Gatzke MN 9 SW (DNR)         1.60 in                         
Grygla MN 6 WNW (Mud R)      1.54 in                         
Hampden ND                   1.52 in                         
Grand Forks ND (AP)          1.50 in                         
Florian MN (Tamarac R)       1.50 in                         
Tamarac Wildlife Refuge MN   1.50 in                         
Hallock MN (AP)              1.49 in                         
Humboldt MN (NDAWN)          1.49 in                         
Kennedy MN 6 W (NDAWN)       1.41 in                         
Cavalier ND 7 NW             1.40 in                         
Pembina ND                   1.40 in                         
Greenbush MN (NDAWN)         1.35 in                         
Karlstad MN (DNR)            1.34 in                         
Osnabrock ND 3 SW            1.34 in                         
Greenbush MN                 1.33 in                         
Grand Forks ND 2 SSE         1.33 in                         
Kennedy MN 6 WNW (Kittson CD 1.32 in                         
Backoo ND 3 WNW              1.31 in                         
Newfolden MN                 1.30 in                         
Park Rapids MN (AP)          1.30 in                         
Langdon ND                   1.29 in                         
Waskish MN (AP)              1.22 in                         
Cando ND (NDAWN)             1.19 in                         
Pennington MN 2 S (Knutson D 1.15 in                         
Forest River ND (NDAWN)      1.12 in                         
Twin Valley MN               1.11 in                         
Baudette MN 12 S (Rapid R)   1.09 in                         
Grand Forks ND 5 WSW         1.06 in                         
Turtle River MN              1.06 in                         
Roseau MN                    1.05 in                         
Lankin ND 6 E                1.00 in                         
Badoura MN (DNR)             0.98 in                         
Caribou MN (Roseau R)        0.96 in                         
Ada MN                       0.91 in                         
Roseau MN (Roseau R)         0.90 in                         
Malung MN (Roseau R)         0.88 in                         
Bemidji MN (AP)              0.87 in                         
Roseau MN (DNR)              0.81 in                         
Grand Forks ND 4 SSW         0.80 in                         
Menahga MN 1 W               0.78 in                         
Eldred MN (NDAWN)            0.76 in                         
Baudette MN 3 S (DNR)        0.69 in                         
Lisbon ND 2 W (NDAWN)        0.61 in                         
Michigan ND 2 W (NDAWN)      0.60 in                         
Hoffman MN 3 S               0.60 in                         
Galesburg ND (NDAWN)         0.59 in                         
Wyndmere ND 10 ESE (NDAWN)   0.58 in                         
Baudette MN (AP)             0.55 in                         
Mcleod ND 3 N                0.55 in                         
Lisbon ND                    0.53 in                         
Wadena MN 13 E (Leaf R)      0.52 in                         
Warroad MN (AP)              0.52 in                         
Campbell MN 4 W (Rabbitt R)  0.51 in                         
Roseau MN 3 W                0.50 in                         
Lidgerwood ND                0.50 in                         
Roseau MN (AP)               0.50 in                         
Detroit Lakes MN (DNR)       0.48 in                         
Clementson MN (Rapid R)      0.47 in                         
Elbow Lake MN (AP)           0.46 in                         
Perley MN (NDAWN)            0.42 in                         
Kempton ND 2 NE              0.41 in                         
Cormorant MN 5 NW            0.40 in                         
Dalton MN 4 WNW              0.39 in                         
Richville MN 1 NW            0.38 in                         
Fergus Falls MN (AP)         0.37 in                         
Fergus Falls MN 3 W (Pelican 0.36 in                         
Campbell MN (Rabitt R)       0.34 in                         
Havana ND                    0.34 in                         
Leonard ND (NDAWN)           0.33 in                         
Mayville ND (NDAWN)          0.32 in                         
Elizabeth MN 6 E (Ottertail  0.30 in                         
Deer Creek MN 1 W            0.30 in                         
Barrie ND 2 WSW (Ekre NDAWN) 0.29 in                         
Felton MN 6 ENE (SB Wild Ric 0.29 in                         
Detroit Lakes MN (AP)        0.28 in                         
Fargo ND (AP)                0.28 in                         
Inkster ND 3 WNW (NDAWN)     0.28 in                         
Dunvilla MN 4 W              0.28 in                         
Fort Totten ND               0.27 in                         
Mayville ND                  0.27 in                         
Breckenridge MN (Ottertail R 0.26 in                         
Clitherall MN 1 WSW          0.26 in                         
New York Mills MN            0.26 in                         
Battle Lake MN 2 S           0.25 in                         


Observations are collected from a variety of sources with varying
equipment and exposures. Not all data listed are considered official.

nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo