Damaging Winds in Wyoming, June 7, 2026

Name: Damaging Winds in Wyoming, June 7, 2026
Start: 2026-06-07T16:52
End: 2026-06-07T17:02
Location: Wyoming

June 7, 2026 · NWS BYZ · 2 events in 1 county or zone

Multiple severe storms occurred, producing winds up to 67 mph and hail up to 3 inches in diameter. Some minor flooding occurred as well.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS BYZ wrote it up.

Multiple severe storms occurred, producing winds up to 67 mph and hail up to 3 inches in diameter. Some minor flooding occurred as well.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Billings, MT wrote its last area forecast discussion before the first event at Jun 7, 2:10 PM MST, 2 hours 42 minutes earlier. Its key messages:

Scattered showers and thunderstorms through early evening. Severe thunderstorms expected over southeastern Montana and north central Wyoming. Widespread damaging wind threat possible Rosebud County eastward late today.
Mainly dry Monday; then a daily chance of showers and thunderstorms rest of the work week.

Area forecast discussion, Jun 7, 2:10 PM MST, 2 hours 42 minutes before

Area Forecast Discussion...Updated
National Weather Service Billings MT
310 PM MDT Sun Jun 7 2026

.KEY MESSAGES...

- Scattered showers and thunderstorms through early evening.
  Severe thunderstorms expected over southeastern Montana and
  north central Wyoming. Widespread damaging wind threat possible
  Rosebud County eastward late today.

- Mainly dry Monday; then a daily chance of showers and
  thunderstorms rest of the work week.

&&

.UPDATE...

A Severe Thunderstorm Watch has been issued for Sheridan County
Wyoming and Big Horn, Treasure, Rosebud, Powder River, Carter,
Custer, and Fallon Counties in Montana. The main threat with these
storms will be strong winds up to 85 mph and large hail up to 2
inches in diameter.

&&

.DISCUSSION...

Next 7 Days (Through Saturday)...

Satellite imagery showed an upper trough over northern Idaho
lifting east/northeast into NW Montana. Northeasterly low level
flow was undercutting strong southwest flow our region. Areas of
clouds had eroded over our central and eastern CWA which will
allow for increasing destabilization this afternoon. Models
indicated weak perturbations in that southwest flow which will
interact with an increasingly moisture rich environment over our
east with PWATS ranging from 0.8 inches over the west to over
an inch from Rosebud County eastward. Mean MUCAPE ranges from
750-2000 J/kg, highest near the Dakota borders. CAMs are depicting
significant 2-5km helicity tracks mainly from Bighorn County
eastward with deeper convective initiation starting around 1-2
pm. Despite a cooler post frontal air mass, our lifted indices may
reach -4C in our eastern zones. Moderate to strong upper forcing
from height falls and jet-lets should produce a busy day over our
eastern zones. Sounding profiles suggest large hail and damaging
winds the main threats, but cannot rule out a tornado, especially
closer to the Dakota border this early this evening as proggs
produce a brief window of favorable hodographs. Folks should keep
an eye on the sky and move to shelter if threatening weather
approaches. Have a way to receive weather updates and bulletins,
but please do not wait for warnings!

CAMs hint that the convection may form an MCS or even a bowing
line (widespread wind threat) late today over our four eastern
counties as it all tracks into the Dakotas this evening. There
may be a few lingering cells trailing back in SE MT this evening,
but otherwise look for drier air moving in quickly and clearing
skies overnight.

By Monday, weak ridging moving into the region brings drier
conditions. Cooler and unsettled conditions are progged beginning
Tuesday and continuing through much of the week as an upper trough
develops over the northern Rockies. Occasional shortwaves
dropping through the region will bring a daily chance for showers
and thunderstorms. Temperatures may be cool enough for some light
snow accumulations in the high country, including the Beartooth
Hwy. The chance for strong to severe storms looks to remain low,
with the better chance east of the area. Temperatures in the 70s
to lower 80s Monday are forecast to drop into the upper 60s to
middle 70s Tuesday onward. BT

.AVIATION...

18z UPDATE...

Confidence is increasing that a line of severe thunderstorms will
form around KBIL/KSHR between 18-19z and quickly strengthen and
move eastwards. Sites such as KMLS/KBHK/K00U may see erratic
winds of up to 60 kts, localized hail, LIFR VIS, and frequent
lightning. The greatest risk for KMLS/KBHK is between 21z and
03z. WMR

12z Discussion...

Areas of MVFR stratus have developed west of
KMLS-K00F early this morning. Through daytime mixing these low
clouds should dissipate by 14-16z. Showers w/ a few weak t-storms
in the far west this morning may produce local MVFR near KHWQ &
KLVM, while mountains are occasionally obscured.

Scattered thunderstorms are expected this afternoon and early
evening. Some storms (mainly from Billings eastward) may be severe
and produce large hail and strong winds, along with brief heavy
rain (MVFR/IFR expected in heavier showers). Peak timing for TS
today is from 19z to 02z. An afternoon cold front will bring
breezy NW-N winds across the region into the evening, with
widespread gusts of 25-35kts. VFR will prevail and winds will
decrease late tonight as high pressure builds back over the
region.

JKL

&&

.PRELIMINARY POINT TEMP/POPS...

    Tdy Mon     Tue     Wed     Thu     Fri     Sat
-------------------------------------------------------
BIL 077 044/076 054/078 050/068 048/074 050/075 049/069
    7/T 10/B    02/T    62/T    31/N    11/U    23/T
LVM 069 035/073 048/069 039/061 036/069 041/071 041/065
    4/T 00/B    19/T    95/T    31/N    12/T    24/T
HDN 078 042/078 052/080 048/070 045/073 046/075 047/069
    8/T 20/B    02/T    74/W    42/W    11/U    23/T
MLS 081 046/075 055/082 052/069 048/070 049/073 048/069
    8/T 80/B    11/E    43/W    33/T    11/U    13/T
4BQ 084 046/077 058/085 050/068 047/070 048/074 048/068
    8/T 80/B    12/T    84/T    33/W    01/B    23/T
BHK 084 044/073 053/084 049/068 045/068 045/071 044/067
    8/T 80/U    12/T    54/T    54/T    12/T    13/T
SHR 081 040/078 049/081 043/064 041/070 043/072 044/065
    8/T 51/B    03/T    78/T    43/T    12/T    24/T

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...Severe Thunderstorm Watch 285 in effect until 10 PM MDT this
      evening FOR ZONES 30>33-36-37-57-58-138-139-169-171.
WY...Severe Thunderstorm Watch 285 in effect until 10 PM MDT this
      evening FOR ZONES 198-199.

&&

weather.gov/billings

In the hours before

Special weather statement, Jun 7, 4:06 PM MST, 46 minutes before

Special Weather Statement
National Weather Service Billings MT
506 PM MDT Sun Jun 7 2026

MTZ032-036-037-072330-
Powder River MT-Carter MT-Custer MT-
506 PM MDT Sun Jun 7 2026

...A LINE OF STRONG THUNDERSTORMS WILL IMPACT SOUTH CENTRAL CUSTER...
WEST CENTRAL CARTER AND NORTHEASTERN POWDER RIVER COUNTIES UNTIL 530
PM MDT...

At 506 PM MDT, Doppler radar was tracking a line of strong
thunderstorms extending from 22 miles northeast of Volborg to 16
miles east of Broadus, moving east at 45 mph.

HAZARD...Wind gusts up to 50 mph and half inch size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  Powderville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4579 10542 4601 10511 4578 10488 4541 10475
      4530 10519 4559 10536 4573 10550
TIME...MOT...LOC 2306Z 255DEG 39KT 4605 10533 4581 10513 4539 10508

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Palmquist

Special weather statement, Jun 7, 4:13 PM MST, 39 minutes before

Special Weather Statement
National Weather Service Billings MT
513 PM MDT Sun Jun 7 2026

MTZ057-138-171-235-080000-
Southern Big Horn MT-Pryor/Northern Bighorn Mountains MT-
Southwestern Yellowstone MT-Northern Big Horn MT-
513 PM MDT Sun Jun 7 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL YELLOWSTONE AND
NORTHWESTERN BIG HORN COUNTIES UNTIL 6 PM MDT...

At 513 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles northeast of Pryor, or 24 miles southeast of Billings, moving
northeast at 40 mph.

HAZARD...Heavy rain, wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  St. Xavier and Crow Indian Reservation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4546 10839 4573 10845 4583 10781 4539 10764
      4533 10809 4533 10813 4532 10813 4529 10836
TIME...MOT...LOC 2312Z 241DEG 32KT 4548 10832

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

Tesar

Local storm report, Jun 7, 4:22 PM MST, 30 minutes before

Preliminary Local Storm Report
National Weather Service Billings MT
522 PM MDT Sun Jun 7 2026

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

0412 PM     Hail             16 ESE Powderville      45.70N 104.77W
06/07/2026  E3.00 Inch       Carter             MT   Trained Spotter

&&

Special weather statement, Jun 7, 4:29 PM MST, 23 minutes before

Special Weather Statement
National Weather Service Billings MT
529 PM MDT Sun Jun 7 2026

MTZ031-032-080015-
Custer MT-Northern Rosebud MT-
529 PM MDT Sun Jun 7 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN CUSTER AND NORTHERN
ROSEBUD COUNTIES UNTIL 615 PM MDT...

At 529 PM MDT, Doppler radar was tracking a strong thunderstorm near
Miles City, moving northeast at 45 mph.

HAZARD...Wind gusts of 40 to 50 mph and half inch size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  Miles City, Matthews Recreation Area and Strawberry Hill Recreation
  Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4648 10612 4660 10625 4686 10584 4686 10583
      4683 10583 4683 10562 4675 10562 4674 10558
      4666 10558 4666 10549 4660 10549 4660 10545
      4657 10545 4657 10530 4652 10524 4633 10596
TIME...MOT...LOC 2329Z 244DEG 39KT 4644 10594

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

Palmquist

Local storm report, Jun 7, 4:34 PM MST, 18 minutes before

Preliminary Local Storm Report
National Weather Service Billings MT
534 PM MDT Sun Jun 7 2026

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

0533 PM     Tstm Wnd Gst     11 SSE Billings         45.63N 108.49W
06/07/2026  M66 MPH          Yellowstone        MT   Mesonet

&&

Special weather statement, Jun 7, 4:47 PM MST, 5 minutes before

Special Weather Statement
National Weather Service Billings MT
547 PM MDT Sun Jun 7 2026

MTZ057-138-169-171-080030-
Bighorn Canyon MT-Southern Big Horn MT-Pryor/Northern Bighorn
Mountains MT-Northern Big Horn MT-
547 PM MDT Sun Jun 7 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL BIG HORN COUNTY UNTIL
630 PM MDT...

At 547 PM MDT, Doppler radar was tracking strong thunderstorms from
Fort Smith to 20 miles north of Fort Smith, or 19 miles southwest of
Hardin, moving northeast at 35 mph.

HAZARD...Heavy rain, wind gusts up to 40 mph and up to half inch size
         hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  Hardin, Lodge Grass, Crow Agency, Fort Smith, St. Xavier and Crow
  Indian Reservation. I-90 from Lodge Grass to Hardin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4552 10806 4556 10807 4576 10807 4593 10750
      4519 10718 4510 10792
TIME...MOT...LOC 2345Z 229DEG 30KT 4560 10795

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Tesar

The radar

The Billings radar (KBLX), 176 km away, was scanning. The volume nearest the first event began at 23:53 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Sheridan

When: June 7, 4:52 PM MST
Where: Sheridan County, 0.49 mi E of (Shr)sheridan Co Arp
Measured: 57 kt (66 mph) measured gust
Reported by: ASOS
Coordinates: 44.770, -106.970

ASOS station KSHR Sheridan reported gusts up to 66 mph.

Thunderstorm Wind, Sheridan

When: June 7, 5:02 PM MST
Where: Sheridan County, 2.81 mi N of Banner
Measured: 54 kt (62 mph) measured gust
Reported by: Mesonet
Coordinates: 44.640, -106.860

Mesonet station WY55 2.9 N Banner reported gusts up to 62 mph.

What these are

Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Wyoming in 2026 Every state in 2026 This day in weather history Warnings in Wyoming, June 2026

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1358407, 1358408.