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Overview

On May 24, 2019, a low pressure system moved through North Dakota, sparking severe thunderstorms that produced tornadoes, funnels, hail, and damaging winds. In addition to severe weather, a swath of brief heavy rain fell over portions of eastern North Dakota into northwest Minnesota producing between half an inch to an inch of rain and leading to localized ponding of water on roads.


Tornadoes

Tornado #1 - Leal, ND
Barnes County

Date May 24, 2019
Time (Local) 5:24 PM - 5:31 PM 
EF Rating EF-1
Est. Peak Winds 108 mph
Path Length 4 miles
Max Width 150 yards
Injuries/Deaths None

Summary:

The tornado tore sections of roofing off of a house and steel roofing off of a grain storage building. It destroyed one small shed and impaled wood panels into the side of a home. It later snapped trees and large branches in shelter belts along its path.

Track Map

Track Map EF-Scale

 

Tornado #2 - Rogers, ND
Barnes County

Date May 24, 2019
Time (Local) 6:11 PM - 6:12 PM
EF Rating EF-0
Est. Peak Winds 75 mph
Path Length 0.25 miles
Max Width 75 yards
Injuries/Deaths None

Summary:

Very thin, rope funnel viewed for several minutes at multiple locations around the south end of Lake Astabula Reservoir. An apparent brief touchdown was noted as large branches were flung eastward some 100 yards from a small stand of trees.

Tornado #3 - Hope, ND
Steele County

Date May 24, 2019
Time (Local) 6:20 PM - 6:28 PM
EF Rating EF-0
Est. Peak Winds 85 mph
Path Length 5 miles
Max Width 150 yards
Injuries/Deaths None

Summary:

Rain wrapped tornado snapped poplar trees in a shelter belt and scattered large branches across CR 5 and into an adjacent field for up to 300 yards.

Tornado #4 - Flom, MN
Norman County

Date May 24, 2019
Time (Local) 7:22 PM - 7:36 PM
EF Rating EF-0
Est. Peak Winds 80 mph
Path Length 7.4 miles
Max Width 200 yards
Injuries/Deaths None

Summary:

The first of twin tornadoes viewed and photographed from residents near Flom and Waubun. It broke large tree branches and limbs in several shelter belt locations along its path and appears to have caused a peak wind of 73 mph recorded at both the Mahnomen Airport and a nearby MNDOT RWIS sensor as it dissipated.

 

 

Tornado #5 - Waubun, MN
Mahnomen County

Date May 24, 2019
Time (Local) 7:30 PM - 7:35 PM
EF Rating EF-1
Est. Peak Winds 95 mph
Path Length 3.5 miles
Max Width 200 yards
Injuries/Deaths None

Summary:

The second of twin tornadoes snapped a large spruce tree and several poplar trees in one farmstead. The Mahnomen Sheriff's Office received multiple reports of touchdowns near Waubun. Time based on reports, videos, and radar.

 


 

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0
Weak

65-85 mph
EF1
Moderate
86-110 mph
EF2
Significant
111-135 mph
EF3
Severe
136-165 mph
EF4
Extreme
166-200 mph
EF5
Catastrophic
200+ mph
ef-scale

Storm Reports

 

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
652 PM CDT SUN MAY 26 2019

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

0524 PM     TORNADO          LEAL                    47.11N 98.31W 
05/24/2019  F1               Barnes             ND   NWS STORM SURVEY

            THIS TORNADO TOUCHED DOWN AT THE WEST EDGE OF TOWN AND 
            TRACKED INTERMITTENTLY TO THE NORTHEAST FOR ROUGHLY 4 
            MILES TO AROUND 3 SW OF DAZEY BY 531 PM CDT. THE TORNADO 
            TORE SECTIONS OF ROOFING OFF OF A HOUSE AND STEEL ROOFING
            OFF OF A GRAIN STORAGE BUILDING. IT DESTROYED ONE SMALL 
            SHED AND IMPALED WOOD PANELS INTO THE SIDE OF A HOME. IT 
            LATER SNAPPED TREES AND LARGE BRANCHES IN SHELTER BELTS 
            ALONG IT PATH. PEAK WINDS ESTIMATED TO 108 MPH. MAXIMUM 
            WIDTH ESTIMATED TO 150 YARDS.

0605 PM     TSTM WND DMG     6 WSW SIBLEY            47.18N 98.08W 
05/24/2019                   Barnes             ND   NWS STORM SURVEY

            SECTIONS OF METAL CATTLE FENCING WERE BLOWN DOWN AT THE 
            END OF A STOCK PEN. TIME ESTIMATED BASED ON RADAR.

0607 PM     FUNNEL CLOUD     3 NW BALD HILL DAM      47.07N 98.12W 
05/24/2019                   Barnes             ND   911 CALL CENTER 

            REPORT OF FUNNEL CLOUD BY CORP OF ENGINEERS AT BALDHILL 
            DAM RELAYED BY VALLEY CITY PSAP. LOCATION ESTIMATED BASED
            ON RADAR. 

0610 PM     HAIL             4 SW SIBLEY             47.18N 98.03W 
05/24/2019  E1.00 INCH       Barnes             ND   911 CALL CENTER 

0611 PM     TORNADO          3 N BALD HILL DAM       47.08N 98.08W 
05/24/2019                   Barnes             ND   NWS STORM SURVEY

            A VERY THIN AND ROPEY FUNNEL WAS VIEWED FOR SEVERAL 
            MINUTES FROM MULTIPLE LOCATIONS AROUND THE SOUTH END OF 
            LAKE ASTABULA RESERVOIR. AN APPARENT BRIEF TOUCHDOWN WAS 
            NOTED AS LARGE BRANCHES WERE FLUNG EASTWARD SOME 100 
            YARDS FROM A SMALL STAND OF TREES. NO OTHER DAMAGE WAS 
            NOTED IN THE AREA TO THE WEST OF THE LAKE ALONG 114TH AVE
            SE. PEAK WINDS ESTIMATED TO 75 MPH. MAXIMIMUM WIDTH TO 75
            YARDS. TRACK LENGTH LESS THAN ONE QUARTER MILE EASTWARD 
            AND ENDING BY 812 PM CDT.

0612 PM     HAIL             5 N LUVERNE             47.32N 97.93W 
05/24/2019  M1.50 INCH       Steele             ND   TRAINED SPOTTER 

            PICTURE ON TWITTER OF HAIL COMPARED TO A QUARTER WITH 
            STONE ABOUT 1.5 TIMES LARGER

0620 PM     TORNADO          4 W HOPE                47.32N 97.81W 
05/24/2019  F0               Steele             ND   NWS STORM SURVEY

            THIS TORNADO WAS LIKELY WRAPPED IN DOWNBURST WINDS, HEAVY
            RAIN, AND HAIL AS IT TRACKED TO THE NORTHEAST. IT APPEARS
            TO HAVE TRACKED FOR UP TO 5 MILES BEFORE IT LIKELY 
            DISSIPATED ABOUT 2.5 MILES NORTH OF HOPE BY AROUND 228 PM
            CDT. THIS TORNADO SNAPPED POPLAR TREES IN A SHELTER BELT 
            AND SCATTERED LARGE BRANCHES ACROSS CR5 AND INTO AN 
            ADJACENT FIELD FOR UP TO 300 YARDS. MAXIMUM WIDTH TO 150 
            YARDS. PEAK WINDS ESTIMATED TO 85 MPH.

0625 PM     TSTM WND DMG     5 E FINLEY              47.51N 97.73W 
05/24/2019                   Steele             ND   NWS STORM SURVEY

            LARGE BRANCHES WERE BROKEN OFF IN A FARMSTEAD SHETERBELT.


0630 PM     TSTM WND GST     3 W HOPE                47.32N 97.78W 
05/24/2019  M71.00 MPH       Steele             ND   PUBLIC          

            PUBLIC REPORTED PERSONAL WEATHER STATION PEAK WIND OF 71 
            MPH. PEAK WIND OCCURRED BETWEEN 620 AND 630 PM CDT AND 
            WAS LIKELY ASSOCIATED WITH THE REAR FLANK DOWNDRAFT FROM 
            A NEARBY QLCS TORNADO. 

0631 PM     HAIL             1 S HOPE                47.31N 97.72W 
05/24/2019  E1.00 INCH       Steele             ND   EMERGENCY MNGR  

            LARGE HAIL INTERMITTENTLY FROM 631 TO 638 PM CDT.

0645 PM     TSTM WND DMG     4 ENE GOLDEN LAKE       47.60N 97.56W 
05/24/2019                   Steele             ND   PUBLIC          

            SEVERAL LARGE BRANCHES BLOWN DOWN IN A FARMYARD. WIND WAS
            VERY STRONG FOR 5 TO 10 MINUTES.

0653 PM     FUNNEL CLOUD     6 WSW ULEN              47.05N 96.38W 
05/24/2019                   Clay               MN   TRAINED SPOTTER 

            A PERSISTENT WALL CLOUD WITH BRIEF FUNNEL WAS NOTED BY 
            MULTIPLE SPOTTERS. 

0705 PM     FUNNEL CLOUD     2 NE ULEN               47.10N 96.23W 
05/24/2019                   Clay               MN   BROADCAST MEDIA 

            VIDEO OF A BRIEF FUNNEL CLOUD NEAR ULEN VIA BROADCAST 
            MEDIA WITH TIME ESTIMATED BASED ON RADAR. 

0722 PM     TORNADO          6 W WAUBUN              47.18N 96.07W 
05/24/2019  F0               Norman             MN   NWS STORM SURVEY

            THE FIRST OF TWIN TORNADOES VIEWED AND PHOTOGRAPHED FROM 
            RESIDENTS NEAR FLOM AND WAUBUN. THIS TORNADO TRACKED 
            INTERMITTENTLY TO THE NORTHEAST TO AROUND 4 SSE ON 
            MAHNOMEN BY 736 PM CDT. IT BROKE LARGE TREE BRANCHES AND 
            LIMBS IN SEVERAL SHELTER BELT LOCATIONS ALONG ITS PATH 
            AND APPEARS TO HAVE CAUSED A PEAK WIND OF 73 MPH RECORDED
            AT BOTH THE MAHNOMEN AIPORT AND A NEARBY MNDOT RWIS 
            SENSOR AS IT DISSIPATED. PEAK WINDS ESTIMATED TO 80 MPH. 
            MAXIMUM WIDTH TO 200 YARDS. 

0730 PM     TORNADO          3 NW WAUBUN             47.21N 95.98W 
05/24/2019  F1               Mahnomen           MN   NWS STORM SURVEY

            THIS SECOND OF TWIN TORNADOES IN SOUTHWEST MAHNOMEN 
            COUNTY APPEARS TO TOUCHED DOWN AFTER THE FIRST AND TO 
            HAVE TRACKED NEARLY DUE EAST FOR ROUGHLY 3.5 MILES TO 
            AROUND 3NNE OF WAUBUN BY 735 PM CDT. THIS TORNADO SNAPPED
            A LARGE SPRUCE TREE AND SEVERAL POPLAR TREES IN ONE 
            FARMSTEAD. THE MAHNOMEN SHERIFFS OFFICE RECEIVED MULTIPLE
            REPORTS OF TOUCHDOWNS NEAR WAUBUN. TIME BASED ON REPORTS,
            VIDEOS, AND RADAR. PEAK WINDS ESTIMATED TO 95 MPH. 
            MAXIMUM WIDTH TO 200 YARDS.

0736 PM     TSTM WND GST     4 SSE MAHNOMEN          47.26N 95.94W 
05/24/2019  M73.00 MPH       Mahnomen           MN   AWOS            

            AWOS ONE MINUTE OBSERVATION REPORTED 73 MPH WIND GUST 
            ASSOCIATED WITH A PASSING THUNDERSTORM. NEARBY MNDOT RWIS
            SENSOR, LESS THAN ONE MILE AWAY, ALSO REGISTERED A PEAK 
            WIND OF 73 MPH AROUND 736 PM CDT.

0800 PM     HAIL             ADA                     47.30N 96.51W 
05/24/2019  E0.50 INCH       NORMAN             MN   PUBLIC          

0808 PM     TSTM WND DMG     2 S GENTILLY            47.76N 96.45W 
05/24/2019                   Polk               MN   NWS STORM SURVEY

            PIECES OF TIN ROOFING PEELED OFF A HAY SHED AND BLOWN 
            DOWNWIND. TIME ESTIMATED BASED ON RADAR. 

0815 PM     HAIL             2 NNW GARY              47.40N 96.28W 
05/24/2019  M1.50 INCH       Norman             MN   PUBLIC          

            REPORT VIA MPING WITH TIME ESTIMATED BASED ON RADAR

0858 PM     HAIL             2 SE FOSSTON            47.56N 95.72W 
05/24/2019  E1.00 INCH       Polk               MN   PUBLIC          

            HAIL UP TO QUARTER SIZED FELL FOR A FEW MINUTES IN VERY 
            HEAVY RAIN AND STRONG WINDS. 

0915 PM     TSTM WND GST     CLEARBROOK              47.69N 95.43W 
05/24/2019  E60.00 MPH       CLEARWATER         MN   BROADCAST MEDIA 

            VERY HEAVY RAIN AND WINDS TO 60 MPH. HAIL WAS PEA TO 
            SMALL MARBLE SIZED. VIDEO AND REPORT POSTED VIA SOCIAL 
            MEDIA. TIME ESTIMATED BASED ON RADAR.

 


Photos & Video

 

Photo Photo Photo
This funnel was seen near Waubun, Minnesota. Courtesy of Nate Olson. This was another view of a funnel near Waubun on Highway 59. Taken at 7:25 PM. Courtesy of Lisa Smith. Here is an image of the updraft of a low topped supercell in northern Clay County, Minnesota, at 6:50 PM. Courtesy of Stephanie Nease Photography.

 

Photo Photo
Brent Johnson snapped this photo of ping pong ball sized hail 5 miles north of Luverne, North Dakota. Tornado near Leal, North Dakota, around 5:25 PM CDT May 24, 2019. Courtesy of Carl Jones.

 

 


Radar

 

 

Radar Image Wind Signature near Hope, ND Radar Image Radar Image

Rotation on Radar near Leal, ND

Wind Signature near Hope, ND

Rotation on Radar near Ulen, MN

Supercell near Ada, MN


Rain Reports

 

Photo

Thunderstorms produced a swath of brief, heavy rainfall with generally 0.5 to 1.0 inch of rain in 1-2 hours. This lead to some local ponding of water on roadways.


Environment

Synoptic Analysis.

Environment Environment Environment

500 mb Analysis

700 mb Analysis

850 mb Analysis


Near-storm Environment

Environment Environment Environment

Most Unstable CAPE

Effective-Layer Bulk Shear

Mixing Ratio and Deep Moisture Convergence


Additional environmental data.

Environment Environment Environment

Enhanced Stretching Potential

Supercell Composite

Effective-Layer Storm-Relative Helicity

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