Heat will build over the Intermountain West and the Southwest the next couple of days. Lightning from dry thunderstorms can create new fire starts and combined with gusty winds may cause a fire to rapidly grow in Oregon and northern California. Flash flooding will be possible in New Mexico and west Texas today, as well as parts of the southern and central Plains due to slow moving thunderstorms. Read More >
Overview
**All data is preliminary and subject to change upon further review**
The Billings WFO forecast area was under a Slight (2/5) or higher convective risk from the Storm Prediction Center (SPC) for 4 consecutive days. Record high moisture values combined with high energy and wind shear created very favorable conditions for severe thunderstorms several days in a row. In just 4 days our office issued 96 Severe Thunderstorm Warnings, and 4 Tornado Warnings. Additionally, the SPC had most to all of the CWA under a Severe Thunderstorm Watch each day Friday through Sunday.
There were numerous reports of wind and hail damage across the region each day. Very large hail and strong winds reportedly caused widespread damage in Harlowton on Friday 13th. Later in the day, the largest hailstone of the weekend was reported in Pryor, MT at 2.75” (baseball sized). Sunday the 15th was a truly impressive day with severe storms sweeping through the entire region. A funnel cloud was reported near Roundup in the evening and an 81mph gust was recorded at the Miles City, MT ASOS a few hours later. On Monday a large storm produced a truly impressive hail swath with several inches of accumulating hail to the NE of Billings. As this storm moved into the Sheppard and Huntley area, the moderately sized hail was wind driven causing extensive damage to homes and businesses.
Overview
Hail up to baseball size was reported near Pryor, MT, and 2" hail occurred in Wheatland and Golden Valley Counties.
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| SPC Convective Outlook | NWS Local Storm Reports | Upper Air Analysis - 500 mb |
Photos & Videos
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| Large hail near Pryor, MT Courtesy of Mike Olbinski |
Radar
Radar loop given upon request.
Storm Reports
Preliminary Local Storm Report...Summary
National Weather Service Billings MT
711 AM MDT Sat Jun 14 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1019 PM Hail 6 WNW Wyarno 44.85N 106.87W
06/13/2025 M1.25 Inch Sheridan WY Public
0610 PM Tstm Wnd Gst 4 SW Worden 45.93N 108.23W
06/13/2025 E58 MPH Yellowstone MT Mesonet
0615 PM Hail Worden 45.97N 108.17W
06/13/2025 E0.88 Inch Yellowstone MT Public
Time estimated by radar.
0615 PM Tstm Wnd Gst 1 SSE Ballantine 45.94N 108.15W
06/13/2025 M57 MPH Yellowstone MT Mesonet
Mesonet station MTBAL Ballantine I-94 Mp
15.0.
0616 PM Tstm Wnd Dmg Worden 45.97N 108.17W
06/13/2025 Yellowstone MT Public
Tree limbs down and small objects thrown
around.
0821 PM Rain 1 ESE Pompeys Pillar 45.99N 107.93W
06/13/2025 M1.75 Inch Yellowstone MT Trained Spotter
0300 PM Tstm Wnd Gst 5 W Harlowton 46.45N 109.94W
06/13/2025 M54 MPH Wheatland MT Mesonet
Mesonet station UMHM 5.1 W Harlowton
(AGRIMET).
0305 PM Tstm Wnd Dmg 3 ENE Harlowton 46.46N 109.78W
06/13/2025 Wheatland MT Emergency Mngr
EM report of multiple structures with lost
roofs, uprooted trees as well as tree limb
damage.
0305 PM Hail 4 NE Harlowton 46.47N 109.77W
06/13/2025 M2.00 Inch Wheatland MT Emergency Mngr
0310 PM Tstm Wnd Dmg Harlowton 46.44N 109.83W
06/13/2025 Wheatland MT Public
Corrects previous non-tstm wnd dmg report
from Harlowton. Power lines down with some
power outages reported.
0320 PM Hail 1 ENE Harlowton 46.44N 109.82W
06/13/2025 E1.50 Inch Wheatland MT Trained Spotter
0550 PM Hail 4 ESE Reed Point 45.67N 109.47W
06/13/2025 E0.25 Inch Stillwater MT Cocorahs
0605 PM Hail Columbus 45.64N 109.25W
06/13/2025 E0.50 Inch Stillwater MT Public
Report from mPING: Half-inch (0.50 in.).
0606 PM Hail Columbus 45.64N 109.25W
06/13/2025 E1.00 Inch Stillwater MT Public
0615 PM Hail Columbus 45.64N 109.25W
06/13/2025 E1.25 Inch Stillwater MT Public
0620 PM Hail 5 SE Columbus 45.59N 109.19W
06/13/2025 E1.75 Inch Stillwater MT Public
Report from mPING: Golf Ball (1.75 in.).
0628 PM Hail 6 SE Columbus 45.58N 109.17W
06/13/2025 M1.50 Inch Stillwater MT Public
0926 PM Hail 5 SSW Coalwood 45.67N 105.62W
06/13/2025 M0.88 Inch Powder River MT Cocorahs
1024 PM Hail 4 NE Broadus 45.49N 105.36W
06/13/2025 E0.25 Inch Powder River MT Trained Spotter
0420 PM Hail Ryegate 46.30N 109.25W
06/13/2025 E2.00 Inch Golden Valley MT Public
Time estimated by radar.
0640 PM Hail 1 SW Rockvale 45.51N 108.88W
06/13/2025 M1.25 Inch Carbon MT Public
0645 PM Hail 2 NNE Fox 45.31N 109.20W
06/13/2025 E1.50 Inch Carbon MT Public
0648 PM Hail 3 NNE Fox 45.31N 109.20W
06/13/2025 E1.50 Inch Carbon MT Public
0652 PM Hail Rockvale 45.52N 108.86W
06/13/2025 E1.25 Inch Carbon MT Public
Report from mPING: Half Dollar (1.25 in.).
0658 PM Hail 1 SSW Fox 45.27N 109.23W
06/13/2025 M0.88 Inch Carbon MT Public
0708 PM Hail Pryor 45.42N 108.53W
06/13/2025 E2.50 Inch Big Horn MT Public
0710 PM Hail 1 NNW Pryor 45.43N 108.54W
06/13/2025 M2.75 Inch Big Horn MT NWS Employee
0710 PM Hail 10 N Hardin 45.88N 107.60W
06/13/2025 M1.00 Inch Big Horn MT Trained Spotter
0711 PM Hail 1 E Pryor 45.43N 108.51W
06/13/2025 E2.50 Inch Big Horn MT Public
Report from mPING: Tennis Ball (2.50 in.).
0715 PM Hail 1 NNW Pryor 45.43N 108.54W
06/13/2025 E2.00 Inch Big Horn MT NWS Employee
0800 PM Hail 1 NNE Busby 45.54N 106.95W
06/13/2025 E1.50 Inch Big Horn MT Trained Spotter
&&
$$
Overview
Miles City had a measured wind gust of 81 mph and localized flash flooding, causing a vehicle to be stranded in an underpass. The same storm produced a measured gust to 77 mph in northern Carter County. A funnel cloud was observed in northern Musselshell County.
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| SPC Convective Outlook |
NWS Local Storm Reports | Upper Air Analysis - 500 mb |
Photos & Videos
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| Storm Structure near Broadview. Courtesy of John Ojeda |
Wall Cloud in Musselshell County. Courtesy of John Ojeda |
Approaching Storm towards Miles City. Courtesy of Angela |
Radar
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| Radar Loop Reflectivity |
Radar Loop Velocity |
Storm Reports
Preliminary Local Storm Report...Summary
National Weather Service Billings MT
801 AM MDT Tue Jun 17 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0820 PM Tstm Wnd Gst 7 WNW Billings 45.82N 108.69W
06/15/2025 E50 MPH Yellowstone MT NWS Employee
0835 PM Hail 3 WNW Lockwood 45.83N 108.47W
06/15/2025 E0.25 Inch Yellowstone MT Public
0835 PM Hail 3 WNW Billings 45.81N 108.60W
06/15/2025 E0.25 Inch Yellowstone MT Public
0835 PM Hail 2 E Billings 45.79N 108.50W
06/15/2025 E0.50 Inch Yellowstone MT Public
0841 PM Hail 3 W Lockwood 45.84N 108.47W
06/15/2025 E0.75 Inch Yellowstone MT Public
Report from mPING: Dime (0.75 in.).
0913 PM Hail 1 ESE Pompeys Pillar 45.99N 107.93W
06/15/2025 E0.25 Inch Yellowstone MT Trained Spotter
0940 PM Tstm Wnd Gst 10 SSE Bighorn 46.04N 107.34W
06/15/2025 E60 MPH Treasure MT Trained Spotter
0716 PM Hail Nye 45.45N 109.82W
06/15/2025 E0.25 Inch Stillwater MT Public
0900 PM Tstm Wnd Gst 9 ENE Bascom 46.70N 106.59W
06/15/2025 M60 MPH Rosebud MT Mesonet
Mesonet station MTM89 Angela W.
0950 PM Tstm Wnd Gst 2 NW Rock Springs 46.83N 106.27W
06/15/2025 M58 MPH Rosebud MT Dept of Highways
0927 PM Tstm Wnd Gst 7 NNE Otter 45.30N 106.16W
06/15/2025 M53 MPH Powder River MT Mesonet
Mesonet station FHFM8 Fort Howes.
0550 PM Tstm Wnd Gst Pine Creek 45.50N 110.57W
06/15/2025 M50 MPH Park MT Mesonet
Mesonet station DW8455 Livingston.
0612 PM Tstm Wnd Gst 17 NE Wilsall 46.16N 110.38W
06/15/2025 M56 MPH Park MT Mesonet
Mesonet station TT453 Crazy.
0720 PM Hail 11 NNW Roundup 46.61N 108.59W
06/15/2025 E1.00 Inch Musselshell MT Public
1215 AM Tstm Wnd Gst 4 NE Medicine Rocks Sta 46.08N 104.44W
06/16/2025 M60 MPH Fallon MT Mesonet
Mesonet station MTEKA Baker Mt-7 Mp 14.2.
1230 AM Tstm Wnd Gst 4 NE Medicine Rocks Sta 46.08N 104.44W
06/16/2025 M71 MPH Fallon MT Dept of Highways
1012 PM Tstm Wnd Gst 3 WNW Miles City 46.43N 105.89W
06/15/2025 M81 MPH Custer MT ASOS
1026 PM Flash Flood Miles City 46.41N 105.84W
06/15/2025 Custer MT Public
Report from mPING: Street/road flooding;
Street/road closed; Vehicles stranded.
1052 PM Flood Miles City 46.41N 105.84W
06/15/2025 Custer MT Emergency Mngr
Widespread street flooding across the city.
Lots of standing water under overpasses; one
vehicle submerged.
0100 AM Hail 2 SSW Tusler 46.46N 105.77W
06/16/2025 M0.25 Inch Custer MT Trained Spotter
0156 AM Rain 2 SSW Tusler 46.46N 105.77W
06/16/2025 M1.45 Inch Custer MT Trained Spotter
1254 AM Tstm Wnd Gst 7 SE Ekalaka 45.81N 104.46W
06/16/2025 M77 MPH Carter MT Mesonet
0750 PM Hail 6 S Lodge Grass 45.23N 107.39W
06/15/2025 E0.25 Inch Big Horn MT Trained Spotter
0935 PM Tstm Wnd Gst 2 WNW Hardin 45.75N 107.66W
06/15/2025 M64 MPH Big Horn MT AWOS
AWOS station K00U 2 WNW Hardin.
&&
$$
Overview
A storm moved through the Billings Heights, Shepherd, and Worden areas. A large amount of hail was produced by this storm, and a combination of hail up to 1.5" in diameter and measured 76 mph wind gusts stripped many roofs and sidings. So much hail occurred that it looked like it just snowed out, and the hail swatch could be seen from satellite imagery.
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| SPC Convective Outlook | NWS Local Storm Reports | Upper Air Analysis - 500 mb | Satellite Imagery of Hail Swath (in green) |
Photos & Videos
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| Downed Tree in Billings Heights Courtesy of Deven Olmstead |
Uprooted Tree in Billings Heights Courtesy of Deven Olmstead |
Hail in Shepherd Courtesy of Kassandra Dunnihoo |
Hail Pelted Door in Shepherd. Courtesy of Kassandra Dunnihoo |
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| Uprooted Russian Olive Tree in the Billings Heights Courtesy of Emily Hedin |
Stripped Fencing in Shepherd. Courtesy of Barb Christison |
Storm Structure over Ballantine. Courtesy of MaKayla Sparrow |
Storm Structure north of Billings. Courtesy of Conquer the Storm |
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| Hail on Ground at Ag Station near Huntley Courtesy of Lynn Meade |
Hail near Red Lodge Courtesy of Alanna Anderson |
Radar
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| Radar Loop Reflectivity |
Radar Loop Velocity |
Storm Reports
Preliminary Local Storm Report...Summary
National Weather Service Billings MT
751 AM MDT Tue Jun 17 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 PM Hail 8 NW Ranchester 44.99N 107.28W
06/16/2025 M1.75 Inch Sheridan WY Trained Spotter
Estimated 60 mph wind gust.
0640 PM Hail 7 NW Wyarno 44.89N 106.87W
06/16/2025 E0.70 Inch Sheridan WY Cocorahs
0650 PM Hail 12 NNW Wyarno 44.98N 106.85W
06/16/2025 E0.70 Inch Sheridan WY Cocorahs
0653 PM Hail 9 NNE Wyarno 44.93N 106.68W
06/16/2025 E0.70 Inch Sheridan WY Cocorahs
0418 PM Hail 2 NW Broadview 46.11N 108.90W
06/16/2025 E0.50 Inch Yellowstone MT Trained Spotter
Mainly pea size hail.
0441 PM Tstm Wnd Gst 6 SSW Acton 45.85N 108.73W
06/16/2025 M60 MPH Yellowstone MT Trained Spotter
0448 PM Tstm Wnd Gst 6 W Billings 45.79N 108.65W
06/16/2025 E50 MPH Yellowstone MT NWS Employee
0457 PM Tstm Wnd Gst 1 NW Billings 45.80N 108.55W
06/16/2025 M57 MPH Yellowstone MT ASOS
ASOS station KBIL Billings.
0501 PM Tstm Wnd Gst 3 SW Lockwood 45.79N 108.47W
06/16/2025 M54 MPH Yellowstone MT Mesonet
Mesonet station MTYRB 3.1 SW Lockwood (MT
DOT).
0503 PM Tstm Wnd Gst 3 WSW Billings 45.77N 108.60W
06/16/2025 E60 MPH Yellowstone MT NWS Employee
0505 PM Hail Laurel 45.67N 108.77W
06/16/2025 E1.00 Inch Yellowstone MT Public
0506 PM Tstm Wnd Gst 4 SW Shepherd 45.90N 108.42W
06/16/2025 E70 MPH Yellowstone MT Public
Estimated 60-70 mph. Very large tree
branches down.
0510 PM Tstm Wnd Gst 4 SW Worden 45.93N 108.23W
06/16/2025 M76 MPH Yellowstone MT Mesonet
Mesonet station Huntley E.
0516 PM Tstm Wnd Gst 3 SW Lockwood 45.79N 108.47W
06/16/2025 M59 MPH Yellowstone MT Mesonet
Mesonet station MTYRB 3.1 SW Lockwood (MT
DOT).
0521 PM Tstm Wnd Gst 6 S Lockwood 45.73N 108.40W
06/16/2025 M61 MPH Yellowstone MT Mesonet
Mesonet station SDAM8 Soda Springs.
0525 PM Tstm Wnd Dmg 1 W Shepherd 45.94N 108.37W
06/16/2025 Yellowstone MT Trained Spotter
Extensive tree damage. Several roof tops in
area damaged or ripped up.
0525 PM Hail 1 W Shepherd 45.94N 108.37W
06/16/2025 E1.00 Inch Yellowstone MT Trained Spotter
Pea to quarter size hail accumulating up to
8 inches.
0526 PM Hail 3 NE Huntley 45.93N 108.28W
06/16/2025 E1.50 Inch Yellowstone MT Public
0530 PM Tstm Wnd Gst 1 SSE Ballantine 45.94N 108.15W
06/16/2025 M55 MPH Yellowstone MT Mesonet
Mesonet station MTBAL Ballantine I-94 Mp
15.0.
0344 PM Hail Big Timber 45.83N 109.95W
06/16/2025 E1.00 Inch Sweet Grass MT Public
0309 PM Hail 2 SW Fox 45.25N 109.25W
06/16/2025 M1.00 Inch Carbon MT Trained Spotter
Mostly pea to half inch hail with a few
quarter size hailstones mixed in.
0313 PM Hail 4 N Red Lodge 45.26N 109.23W
06/16/2025 E1.25 Inch Carbon MT Public
0450 PM Hail 2 NE Belfry 45.17N 108.96W
06/16/2025 M0.70 Inch Carbon MT Trained Spotter
&&
$$
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