Severe Weather Event Summary: July 10th 2022

Wind & Hail:

Wind

Wind gusts up to 68 mph caused damage in many locations across the area.

Tree snapped near Petersburg, ND (Courtesy of: Leslie Olson)	Tree down in Florian, MN (Courtesy of: Erica Olson Kuznia).	Tree down in Florian, MN (Courtesy of: Erica Olson Kuznia)	Tree down in Florian, MN (Courtesy of: Erica Olson Kuznia)

Hail

Early in the morning, large hail fell to the size of ping pong balls  during the afternoon hours in SE ND and West Central MN.

Hail up to Ping Pong Ball size in Frazee MN(Courtesy of: Tiffany Ueke)

Radar

Morning Radar Loop of Damaging straight line winds	Afternoon Radar Loop of storms along and southeast of I94

Storm Reports

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GRAND FORKS ND
909 PM CDT SUN JUL 10 2022

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

0502 AM     TSTM WND DMG     PERTH                   48.71N 99.46W
07/10/2022                   TOWNER             ND   PUBLIC           

            TREES UPROOTED/DOWN IN PERTH. RELAYED VIA 
            SOCIAL MEDIA. 

0552 AM     TSTM WND GST     2 N MADDOCK             47.99N 99.53W
07/10/2022  M60 MPH          BENSON             ND   MESONET          

            NDAWN MEASURED 60MPH 10M WIND GUST. 

0645 AM     TSTM WND GST     15 E OF NEW ROCKFORD    47.68N 98.81W
07/10/2022  M63 MPH          EDDY               ND   MESONET          

            NDAWN STATION REPORTED 63MPH WIND GUST 8 
            MILES NORTH OF MCHENRY. 

0654 AM     TSTM WND GST     2 NE PEKIN              47.81N 98.30W
07/10/2022  M58 MPH          NELSON             ND   MESONET          

            NDAWN 10 METER WIND GUST OF 58MPH. 

0735 AM     TSTM WND GST     1 WNW EMERADO           47.93N 97.38W
07/10/2022  M68 MPH          GRAND FORKS        ND   DEPT OF HIGHWAYS 

            RWIS REPORT OF 68MPH WIND GUST. 

0737 AM     TSTM WND GST     2 E EMERADO             47.92N 97.32W
07/10/2022  M59 MPH          GRAND FORKS        ND   MESONET          

            NDAWN STATION MEASURED 59MPH WIND GUST AT 10 
            METERS. 

0753 AM     TSTM WND GST     7 E EMERADO             47.92N 97.22W
07/10/2022  M58 MPH          GRAND FORKS        ND   ASOS             

            58MPH WIND GUST REPORTED AT THE GFK AIRPORT. 

0805 AM     TSTM WND DMG     REYNOLDS                47.67N 97.11W
07/10/2022                   TRAILL             ND   PUBLIC           

            TREE BRANCHES DOWN, RELAYED VIA FACEBOOK. 
            TIME ESTIMATED FROM RADAR. 

0806 AM     TSTM WND GST     8 W STEPHEN             48.45N 97.05W
07/10/2022  M59 MPH          MARSHALL           MN   MESONET          

            WIND GUST VIA PERSONAL WEATHER STATION. 

0811 AM     TSTM WND GST     PROSPER                 46.96N 97.02W
07/10/2022  M60 MPH          CASS               ND   MESONET          

            NDAWN WIND GUST OF 60MPH AT 10 METERS. 

0819 AM     TSTM WND DMG     ARGYLE                  48.34N 96.82W
07/10/2022                   MARSHALL           MN   BROADCAST MEDIA  

            TREE BRANCHES DOWN AND FENCE POSTS BLOWN 
            DOWN. 

0826 AM     TSTM WND GST     7 ESE DONALDSON         48.52N 96.77W
07/10/2022  M60 MPH          MARSHALL           MN   MESONET          

            REPORTED VIA A PERSONAL WEATHER STATION. 

0833 AM     TSTM WND DMG     NEWFOLDEN               48.36N 96.33W
07/10/2022                   MARSHALL           MN   PUBLIC           

            TREE ON HOUSE AND CAR IN NEWFOLDEN. TIME 
            ESTIMATED. 

0910 AM     TSTM WND GST     WAUKON 3S               47.37N 96.13W
07/10/2022  M59 MPH          NORMAN             MN   MESONET          

            CORRECTS PREVIOUS TSTM WND GST REPORT FROM 
            WAUKON. NDAWN REPORT OF 59MPH WIND GUST. 

1229 PM     HAIL             2 SE WEST FARGO         46.85N 96.86W
07/10/2022  E0.88 INCH       CASS               ND   PUBLIC           



1238 PM     HAIL             5 E AVERILL             46.93N 96.45W
07/10/2022  U0.50 INCH       CLAY               MN   PUBLIC           

            REPORT FROM MPING: HALF-INCH (0.50 IN.). 

1245 PM     HAIL             4 SE RICHWOOD           46.93N 95.77W
07/10/2022  E1.25 INCH       BECKER             MN   PUBLIC           

            SIZE ESTIMATED BY PICTURE SHARED ON SOCIAL 
            MEDIA. 

0100 PM     HAIL             5 SE RICHWOOD           46.92N 95.76W
07/10/2022  E1.00 INCH       BECKER             MN   PUBLIC           



0114 PM     HAIL             1 WNW ENDERLIN          46.63N 97.63W
07/10/2022  E1.00 INCH       CASS               ND   PUBLIC           



0115 PM     HAIL             ENDERLIN                46.62N 97.60W
07/10/2022  E1.00 INCH       RANSOM             ND   PUBLIC           

            CORRECTS PREVIOUS HAIL REPORT FROM ENDERLIN. 
            PEA TO QUARTER SIZE HAIL. TIME ESTIMATED. 

0118 PM     HAIL             3 NNW CORMORANT         46.77N 96.08W
07/10/2022  E1.50 INCH       BECKER             MN   PUBLIC           

            CORRECTS PREVIOUS HAIL REPORT FROM 3 NNW 
            CORMORANT. RELAYED VIA BROADCAST MEDIA 
            PARTNER. TIME ESTIMATED VIA RADAR. 

0123 PM     HAIL             WOLF LAKE               46.80N 95.36W
07/10/2022  M1.50 INCH       BECKER             MN   PUBLIC           

            ESTIMATED SIZE FROM PICTURE SHARED ON SOCIAL 
            MEDIA. 

0128 PM     HAIL             SHELDON                 46.59N 97.48W
07/10/2022  E1.00 INCH       RANSOM             ND   PUBLIC           

            RELAYED VIA MEDIA PARTNER. 

0133 PM     HAIL             OSAGE                   46.92N 95.25W
07/10/2022  E1.50 INCH       BECKER             MN   PUBLIC           

            RELAYED VIA BROADCAST MEDIA PARTNER. 

0133 PM     HAIL             1 E SNELLMAN            46.89N 95.39W
07/10/2022  E1.50 INCH       BECKER             MN   PUBLIC           

            RELAYED VIA BROADCAST MEDIA PARTNER. 

0138 PM     HAIL             1 N SHOREHAM            46.77N 95.90W
07/10/2022  U0.50 INCH       BECKER             MN   PUBLIC           

            REPORT FROM MPING: HALF-INCH (0.50 IN.). 

0140 PM     HAIL             FRAZEE                  46.73N 95.70W
07/10/2022  E1.25 INCH       BECKER             MN   PUBLIC           

            RELAYED VIA BROADCAST MEDIA PARTNER. TIME 
            ESTIMATED VIA RADAR. 

0145 PM     HAIL             2 W HUBBARD             46.83N 95.06W
07/10/2022  E1.00 INCH       HUBBARD            MN   PUBLIC           

            PEA TO QUARTER SIZE HAIL. 

0221 PM     HAIL             3 SSW GALCHUTT          46.35N 96.83W
07/10/2022  E1.25 INCH       RICHLAND           ND   STORM CHASER     

Rainfall

Environment

A shortwave trough ejected out of the Pacific Northwest into the Northern Plains around the northern periphery of a very large upper ridge centered over the CONUS. Strong instability, ample moisture, and strong mid level shear ahead of this shortwave trough allowed for organized, convection across many locations within the Dakotas into Minnesota.

Two rounds of severe thunderstorms occurred, with the first moving in during the sunrise time frame (12z). This line of storms originated in central and eastern MT during the overnight hours of July 9th and translated across the state of ND throughout the night following the mean wind. Storms became unorganized and weakened past Minot, but tapped into strong instability ahead of the approaching cold front near the Devils Lake Basin. This allowed the storms to quickly organized and intensify over the Devils Lake Basin and track eastward across the entire forecast area. Storms continued to organize across the Red River Valley exiting the eastern portions of our forecast area (Lake of the Woods, through Hubbard county) past 9am. Strong winds accompanied these storms, with the highest report being 68mph along with multiple trees down. 

Second round of storms fired along the boundary in the southern valley during the late afternoon, with hail as the predominant threat. Up to ping pong ball size hail was reported in some locations as these storms quickly moved off towards the SE into central MN.

Figure 1: 500mb Heights AM	Figure 2: DCAPE AM	Figure 3: Effective Helicity AM

Figure 4: Effective Bulk Shear AM	Figure 5: MUCAPE AM	Figure 6: Surface Vorticity PM

Figure 7: 500mb Heights PM	Figure 8: DCAPE PM	Figure 9: Effective Helicity PM

Figure 10: Effective Bulk Shear PM	Figure 11: MUCAPE PM	Figure 12: Surface Vorticity PM