Montana, 2021

Heavy Rain in Montana, June 11, 2021

June 11, 2021 · NWS GGW · 3 events in 2 counties and zones

Recent unsettled weather and a strong cold front from the night before lingered through this day to allow a few efficient thunderstorms to develop and move through Daniels and Sheridan Counties, resulting in some heavy rain.

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
3

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 GGW wrote it up.

Recent unsettled weather and a strong cold front from the night before lingered through this day to allow a few efficient thunderstorms to develop and move through Daniels and Sheridan Counties, resulting in some heavy rain.

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 Glasgow, MT wrote its last area forecast discussion before the first event at Jun 11, 7:48 AM MST, 1 hour 12 minutes earlier.

Area forecast discussion, Jun 11, 7:48 AM MST, 1 hour 12 minutes before
Area Forecast Discussion
National Weather Service Glasgow MT
848 AM MDT Fri Jun 11 2021

.DISCUSSION...
Update: Made a quick update this morning to ramp up pops for the
now exiting storm system over far NE Montana. System should be
into North Dakota / Southern Canada by midday, so the remainder
of the forecast is in good shape. Gilchrist

Previous discussion: Strong shortwave trof lifting across
northeast Montana this morning with surface low over southeast
Saskatchewan. Showers linger across the region with the cold air
advection behind yesterdays cold front passage. Tight gradient
also keeping winds gusty. Showers should end from the southwest
through the morning, but winds will be strong enough for most of
the day to keep Lake Wind Advisory in place.

As the system moves east and high pressure builds into the region,
clearing skies and diminishing winds are expected by evening.

Upper ridge will begin building north along the Rockies during the
weekend. Dry conditions and warming temperatures are expected,
with reading peaking around 100 on Tuesday. RAE

&&

.AVIATION...
Occasional MVFR conditions this morning as showers lift out of the
region. Skies will be clearing through the afternoon for VFR
conditions through tonight.

Gusty west to northwest winds will persist through the day.

&&

.GLASGOW WATCHES/WARNINGS/ADVISORIES...
Lake Wind Advisory until 7 PM MDT this evening For Fort Peck
Lake for Central and Southeast Phillips...Central and Southern
Valley...Garfield...McCone...Petroleum.

&&

weather.gov/glasgow

In the hours before

Local storm report, Jun 11, 4:53 AM MST, 4 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GLASGOW MT
553 AM MDT FRI JUN 11 2021

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

0258 PM     TSTM WND DMG     5 S FLAXVILLE           48.73N 105.17W
06/10/2021                   DANIELS            MT   PUBLIC

            GRAIN BIN DESTROYED BY THUNDERSTORM WINDS
            SOUTH OF FLAXVILLE ON THE R Y RD. TIME
            ESTIMATED FROM RADAR.

0258 PM     TSTM WND DMG     5 S FLAXVILLE           48.73N 105.17W
06/10/2021                   DANIELS            MT   PUBLIC

            GRAIN BIN DESTROYED BY THUNDERSTORM WINDS
            SOUTH OF FLAXVILLE ON THE R Y RD. TIME
            ESTIMATED FROM RADAR.

0333 PM     HAIL             18 W SIDNEY             47.71N 104.55W
06/10/2021  M1.50 INCH       RICHLAND           MT   TRAINED SPOTTER

            .

0333 PM     HAIL             18 W SIDNEY             47.71N 104.55W
06/10/2021  M1.50 INCH       RICHLAND           MT   TRAINED SPOTTER

0337 PM     HAIL             5 N CULBERTSON          48.22N 104.50W
06/10/2021  E1.00 INCH       ROOSEVELT          MT   TRAINED SPOTTER

            AND HEAVY RAIN.

0337 PM     HAIL             5 N CULBERTSON          48.22N 104.50W
06/10/2021  E1.00 INCH       ROOSEVELT          MT   TRAINED SPOTTER

            AND HEAVY RAIN.

0340 PM     TSTM WND DMG     17 E BREDETTE           48.46N 104.94W
06/10/2021                   ROOSEVELT          MT   PUBLIC

            THUNDERSTORM WINDS ROLLED GRAIN BINS,
            KNOCKED DOWN POWER POLES, AND DAMAGED
            OUTBUILDINGS.

0340 PM     TSTM WND DMG     17 E BREDETTE           48.46N 104.94W
06/10/2021                   ROOSEVELT          MT   PUBLIC

            THUNDERSTORM WINDS ROLLED GRAIN BINS,
            KNOCKED DOWN POWER POLES, AND DAMAGED
            OUTBUILDINGS.

0400 PM     HAIL             OUTLOOK                 48.89N 104.78W
06/10/2021  E1.00 INCH       SHERIDAN           MT   PUBLIC

            CALL REPORTING NICKEL TO QUARTER SIZE HAIL
            ONGOING.

0400 PM     HAIL             OUTLOOK                 48.89N 104.78W
06/10/2021  E1.00 INCH       SHERIDAN           MT   PUBLIC

            CALL REPORTING NICKEL TO QUARTER SIZE HAIL
            ONGOING.

0400 PM     HAIL             OUTLOOK                 48.89N 104.78W
06/10/2021  E1.00 INCH       SHERIDAN           MT   TRAINED SPOTTER

            CALL REPORTING NICKEL TO QUARTER SIZE HAIL
            ONGOING.

0415 PM     HAIL             7 W RESERVE             48.61N 104.61W
06/10/2021  M1.00 INCH       SHERIDAN           MT   PUBLIC

            PEA TO QUARTER SIZE HAIL FROM 4 TO 4:14 PM.
            REPORT VIA SOCIAL MEDIA.

0415 PM     HAIL             7 W RESERVE             48.61N 104.61W
06/10/2021  M1.00 INCH       SHERIDAN           MT   PUBLIC

            PEA TO QUARTER SIZE HAIL FROM 4 TO 4:14 PM.
            REPORT VIA SOCIAL MEDIA.

0422 PM     HAIL             SIDNEY                  47.71N 104.16W
06/10/2021  E1.75 INCH       RICHLAND           MT   EMERGENCY MNGR

            CONTINUED PEA SIZE HAIL, WITH BRIEFLY UP TO
            PING PONG BALL SIZE.

0422 PM     HAIL             SIDNEY                  47.71N 104.16W
06/10/2021  E1.50 INCH       RICHLAND           MT   EMERGENCY MNGR

            CORRECTS PREVIOUS HAIL REPORT FROM SIDNEY.
            CONTINUED PEA SIZE HAIL, WITH BRIEFLY UP TO
            PING PONG BALL SIZE.

0422 PM     HAIL             SIDNEY                  47.71N 104.16W
06/10/2021  E1.75 INCH       RICHLAND           MT   EMERGENCY MNGR

            CONTINUED PEA SIZE HAIL, WITH BRIEFLY UP TO
            PING PONG BALL SIZE.

0422 PM     HAIL             SIDNEY                  47.71N 104.16W
06/10/2021  E1.50 INCH       RICHLAND           MT   EMERGENCY MNGR

            CORRECTS PREVIOUS HAIL REPORT FROM SIDNEY.
            CONTINUED PEA SIZE HAIL, WITH BRIEFLY UP TO
            PING PONG BALL SIZE.

0425 PM     HAIL             6 W RESERVE             48.61N 104.59W
06/10/2021  E0.88 INCH       SHERIDAN           MT   TRAINED SPOTTER

0425 PM     HAIL             6 W RESERVE             48.61N 104.59W
06/10/2021  E0.88 INCH       SHERIDAN           MT   TRAINED SPOTTER

0433 PM     HAIL             ANTELOPE                48.69N 104.46W
06/10/2021  M1.00 INCH       SHERIDAN           MT   PUBLIC

            QUARTER SIZE HAIL FELL FOR 20 MINUTES.
            RECEIVED OVER ONE INCH OF RAIN.

0433 PM     HAIL             ANTELOPE                48.69N 104.46W
06/10/2021  M1.00 INCH       SHERIDAN           MT   PUBLIC

            QUARTER SIZE HAIL FELL FOR 20 MINUTES.
            RECEIVED OVER ONE INCH OF RAIN.

0436 PM     TSTM WND GST     4 SE ANTELOPE           48.65N 104.40W
06/10/2021  E60 MPH          SHERIDAN           MT   TRAINED SPOTTER

0436 PM     TSTM WND GST     4 SE ANTELOPE           48.65N 104.40W
06/10/2021  E60 MPH          SHERIDAN           MT   TRAINED SPOTTER

0442 PM     HAIL             4 SE ANTELOPE           48.65N 104.40W
06/10/2021  E1.50 INCH       SHERIDAN           MT   TRAINED SPOTTER

            SAME LOCATION AS 60 MPH WIND AT 436 PM.

0442 PM     HAIL             4 SE ANTELOPE           48.65N 104.40W
06/10/2021  E1.50 INCH       SHERIDAN           MT   TRAINED SPOTTER

            SAME LOCATION AS 60 MPH WIND AT 436 PM.

0550 PM     HAIL             22 N WIBAUX             47.30N 104.19W
06/10/2021  M1.75 INCH       WIBAUX             MT   PUBLIC

            QUARTER TO GOLF BALL SIZE HAIL.

0550 PM     HAIL             22 N WIBAUX             47.30N 104.19W
06/10/2021  M1.75 INCH       WIBAUX             MT   PUBLIC

            QUARTER TO GOLF BALL SIZE HAIL.

0616 PM     HAIL             9 ENE SAVAGE            47.50N 104.16W
06/10/2021  M1.75 INCH       RICHLAND           MT   PUBLIC

            .

0616 PM     HAIL             9 ENE SAVAGE            47.50N 104.16W
06/10/2021  M1.75 INCH       RICHLAND           MT   PUBLIC

0730 PM     TSTM WND DMG     8 WSW CROW ROCK         46.87N 106.23W
06/10/2021                   GARFIELD           MT   TRAINED SPOTTER

            WEAKER TREE AT LEAST A FOOT IN DIAMETER
            FELL. DRIFTING HAIL ESTIMATED AS PEA SIZE.

0730 PM     TSTM WND DMG     8 WSW CROW ROCK         46.87N 106.23W
06/10/2021                   GARFIELD           MT   TRAINED SPOTTER

            WEAKER TREE AT LEAST A FOOT IN DIAMETER
            FELL. DRIFTING HAIL ESTIMATED AS PEA SIZE.

0752 PM     NON-TSTM WND GST 2 E FORT PECK           48.01N 106.40W
06/10/2021  M60 MPH          MCCONE             MT   MESONET

            ALONG FRONTAL PASSAGE- MESONET STATION GGWFP
            2.4 E FORT PECK (GGWWFO).

0752 PM     NON-TSTM WND GST 2 E FORT PECK           48.01N 106.40W
06/10/2021  M60 MPH          MCCONE             MT   MESONET

            ALONG FRONTAL PASSAGE- MESONET STATION GGWFP
            2.4 E FORT PECK (GGWWFO).

0755 PM     HAIL             10 WNW MCCLOUD          46.95N 105.80W
06/10/2021  E3.00 INCH       PRAIRIE            MT   TRAINED SPOTTER

            3 INCH HAIL AND TORRENTIAL RAINFALL.

0755 PM     TSTM WND DMG     10 WNW MCCLOUD          46.95N 105.80W
06/10/2021                   PRAIRIE            MT   TRAINED SPOTTER

            ASH TREES BROKEN ABOUT HALFWAY UP. APPLE
            TREES AND AN 80-YEAR-OLD SPRUCE TREE BLOWN
            DOWN.

0755 PM     TSTM WND DMG     10 WNW MCCLOUD          46.95N 105.80W
06/10/2021                   PRAIRIE            MT   TRAINED SPOTTER

            ASH TREES BROKEN ABOUT HALFWAY UP. APPLE
            TREES AND AN 80-YEAR-OLD SPRUCE TREE BLOWN
            DOWN.

0755 PM     HAIL             10 WNW MCCLOUD          46.95N 105.80W
06/10/2021  E3.00 INCH       PRAIRIE            MT   TRAINED SPOTTER

            3 INCH HAIL AND TORRENTIAL RAINFALL.

0800 PM     HAIL             19 NW TERRY             46.99N 105.60W
06/10/2021  M2.00 INCH       PRAIRIE            MT   TRAINED SPOTTER

            .

0800 PM     HAIL             19 NW TERRY             46.99N 105.60W
06/10/2021  M2.00 INCH       PRAIRIE            MT   TRAINED SPOTTER

0808 PM     TSTM WND GST     13 NW MCCLOUD           47.03N 105.80W
06/10/2021  M59 MPH          PRAIRIE            MT   MESONET

            MESONET STATION LCFM8 MCCLOUD 13WNW/BIG
            SHEEP MTN.

0808 PM     TSTM WND GST     13 NW MCCLOUD           47.03N 105.80W
06/10/2021  M59 MPH          PRAIRIE            MT   MESONET

            MESONET STATION LCFM8 MCCLOUD 13WNW/BIG
            SHEEP MTN.

0812 PM     NON-TSTM WND GST 3 ENE WOLF POINT        48.10N 105.58W
06/10/2021  M66 MPH          ROOSEVELT          MT   ASOS

            FRONTAL PASSAGE- WITH A SUSTAINED WIND OF 44
            MPH. FROM ASOS STATION KOLF WOLF POINT
            AIRPORT.

0812 PM     NON-TSTM WND GST 3 ENE WOLF POINT        48.10N 105.58W
06/10/2021  M66 MPH          ROOSEVELT          MT   ASOS

            FRONTAL PASSAGE- WITH A SUSTAINED WIND OF 44
            MPH. FROM ASOS STATION KOLF WOLF POINT
            AIRPORT.

0815 PM     TSTM WND GST     8 WSW LINDSAY           47.18N 105.31W
06/10/2021  E75 MPH          DAWSON             MT   PUBLIC

            HURRICANE-FORCE WIND GUSTS. TELEPHONE POLES
            READY TO BLOW OVER. 75-YEAR-OLD TREES BLOWN
            OVER.

0815 PM     HAIL             8 WSW LINDSAY           47.18N 105.31W
06/10/2021  E2.75 INCH       DAWSON             MT   PUBLIC

            BASEBALL-SIZED AND LARGER HAIL.

0815 PM     HAIL             9 WNW LINDSAY           47.28N 105.33W
06/10/2021  M2.00 INCH       DAWSON             MT   TRAINED SPOTTER

            TWITTER PHOTO OF HAIL MEASUREMENT WITH HAIL
            COVERING THE GROUND.

0815 PM     HAIL             9 WNW LINDSAY           47.28N 105.33W
06/10/2021  M2.00 INCH       DAWSON             MT   TRAINED SPOTTER

            TWITTER PHOTO OF HAIL MEASUREMENT WITH HAIL
            COVERING THE GROUND.

0815 PM     HAIL             8 WSW LINDSAY           47.18N 105.31W
06/10/2021  E2.75 INCH       DAWSON             MT   PUBLIC

            BASEBALL-SIZED AND LARGER HAIL.

0815 PM     TSTM WND GST     8 WSW LINDSAY           47.18N 105.31W
06/10/2021  E75 MPH          DAWSON             MT   PUBLIC

            HURRICANE-FORCE WIND GUSTS. TELEPHONE POLES
            READY TO BLOW OVER. 75-YEAR-OLD TREES BLOWN
            OVER.

0818 PM     HAIL             5 SW LINDSAY            47.17N 105.24W
06/10/2021  E3.00 INCH       DAWSON             MT   TRAINED SPOTTER

            CALL WITH REPORT OF TEA CUP SIZE HAIL.

0818 PM     HAIL             5 SW LINDSAY            47.17N 105.24W
06/10/2021  E3.00 INCH       DAWSON             MT   TRAINED SPOTTER

            CALL WITH REPORT OF TEA CUP SIZE HAIL.

0828 PM     HEAVY RAIN       8 NE LINDSAY            47.28N 105.02W
06/10/2021  M1.50 INCH       DAWSON             MT   PUBLIC

            RAINFALL WITH 1.5 INCHES TOTAL AT THIS TIME.

0828 PM     HEAVY RAIN       8 NE LINDSAY            47.28N 105.02W
06/10/2021  M1.50 INCH       DAWSON             MT   PUBLIC

            RAINFALL WITH 1.5 INCHES TOTAL AT THIS TIME.

0835 PM     HAIL             8 NNE LINDSAY           47.33N 105.12W
06/10/2021  E1.00 INCH       DAWSON             MT   UNKNOWN

            DIME TO QUARTER-SIZED HAIL. 0.13 INCHES OF
            RAIN MEASURED.

0835 PM     HAIL             8 NNE LINDSAY           47.33N 105.12W
06/10/2021  E1.00 INCH       DAWSON             MT   UNKNOWN

            DIME TO QUARTER-SIZED HAIL. 0.13 INCHES OF
            RAIN MEASURED.

0838 PM     TSTM WND GST     8 NNE CIRCLE            47.52N 105.52W
06/10/2021  E79 MPH          MCCONE             MT   TRAINED SPOTTER

            THIS GUST IS LIKELY ENHANCED BY THE COLD
            FRONT COMING THROUGH AS WELL, THE STORM IS
            MOSTLY SOUTH OF THIS AREA.

0838 PM     TSTM WND GST     8 NNE CIRCLE            47.52N 105.52W
06/10/2021  E79 MPH          MCCONE             MT   TRAINED SPOTTER

            THIS GUST IS LIKELY ENHANCED BY THE COLD
            FRONT COMING THROUGH AS WELL, THE STORM IS
            MOSTLY SOUTH OF THIS AREA.

0840 PM     HEAVY RAIN       3 N LUSTRE              48.44N 105.88W
06/10/2021  M4.00 INCH       VALLEY             MT   PUBLIC

            RAINFALL ONGOING WITH 4 INCHES TOTAL AS OF
            8:40 PM.

0840 PM     HEAVY RAIN       3 N LUSTRE              48.44N 105.88W
06/10/2021  M4.00 INCH       VALLEY             MT   PUBLIC

            RAINFALL ONGOING WITH 4 INCHES TOTAL AS OF
            8:40 PM.

0842 PM     NON-TSTM WND DMG 7 NNW BLOOMFIELD        47.50N 104.98W
06/10/2021                   DAWSON             MT   PUBLIC

            CORRECTS PREVIOUS NON-TSTM WND DMG REPORT
            FROM 7 NNW BLOOMFIELD. MULTIPLE TREES DOWN,
            ONE OF WHICH BROKE THROUGH A HOUSE WINDOW.

0845 PM     HAIL             8 S RICHEY              47.53N 105.07W
06/10/2021  E1.00 INCH       DAWSON             MT   PUBLIC

            GROUND WHITE WITH HAIL ONGOING- UP TO
            QUARTER SIZE.

0845 PM     HAIL             8 S RICHEY              47.53N 105.07W
06/10/2021  E1.00 INCH       DAWSON             MT   PUBLIC

            GROUND WHITE WITH HAIL ONGOING- UP TO
            QUARTER SIZE.

0848 PM     TSTM WND GST     8 S RICHEY              47.53N 105.07W
06/10/2021  E70 MPH          DAWSON             MT   PUBLIC

            ESTIMATED 70 MPH WIND GUST WITH TREE
            BRANCHES DOWN.

0848 PM     TSTM WND GST     8 S RICHEY              47.53N 105.07W
06/10/2021  E70 MPH          DAWSON             MT   PUBLIC

            ESTIMATED 70 MPH WIND GUST WITH TREE
            BRANCHES DOWN.

0900 PM     TSTM WND GST     12 SSE SPROLE           47.95N 104.94W
06/10/2021  M61 MPH          RICHLAND           MT   MESONET

            MESONET STATION FW2498 BADGER CREEK.

0900 PM     TSTM WND GST     4 WNW MIDWAY            47.53N 104.39W
06/10/2021  M66 MPH          RICHLAND           MT   MESONET

            MESONET STATION FW8536 SAVAGE.

0900 PM     TSTM WND GST     1 SSW MIDWAY            47.50N 104.33W
06/10/2021  M66 MPH          RICHLAND           MT   MESONET

            MESONET STATION DW8636 SIDNEY.

0900 PM     TSTM WND GST     12 SSE SPROLE           47.95N 104.94W
06/10/2021  M61 MPH          RICHLAND           MT   MESONET

            CORRECTS PREVIOUS TSTM WND GST REPORT FROM
            12 SSE SPROLE. MESONET STATION FW2498 BADGER
            CREEK.

0900 PM     TSTM WND GST     1 SSW MIDWAY            47.50N 104.33W
06/10/2021  M66 MPH          RICHLAND           MT   MESONET

            MESONET STATION DW8636 SIDNEY.

0900 PM     TSTM WND GST     4 WNW MIDWAY            47.53N 104.39W
06/10/2021  M66 MPH          RICHLAND           MT   MESONET

            MESONET STATION FW8536 SAVAGE.

0900 PM     TSTM WND GST     8 S RICHEY              47.53N 105.07W
06/10/2021  E75 MPH          DAWSON             MT   PUBLIC

            ESTIMATED WINDS OF OVER 70 MPH WITH TREES
            THAT HAVE LOST LEAVES AND WINDOWS OUT.

0900 PM     HAIL             8 S RICHEY              47.53N 105.08W
06/10/2021  E1.00 INCH       DAWSON             MT   PUBLIC

            ESTIMATED HAIL AROUND A QUARTER SIZE.

0900 PM     HAIL             8 S RICHEY              47.53N 105.08W
06/10/2021  E1.00 INCH       DAWSON             MT   PUBLIC

            ESTIMATED HAIL AROUND A QUARTER SIZE.

0900 PM     TSTM WND GST     8 S RICHEY              47.53N 105.07W
06/10/2021  E75 MPH          DAWSON             MT   PUBLIC

            ESTIMATED WINDS OF OVER 70 MPH WITH TREES
            THAT HAVE LOST LEAVES AND WINDOWS OUT.

0910 PM     TSTM WND GST     1 NE LAMBERT            47.70N 104.60W
06/10/2021  M70 MPH          RICHLAND           MT   MESONET

            MESONET STATION DW8633 LAMBERT.

0910 PM     TSTM WND GST     1 NE LAMBERT            47.70N 104.60W
06/10/2021  M70 MPH          RICHLAND           MT   MESONET

            MESONET STATION DW8633 LAMBERT.

0914 PM     TSTM WND GST     7 NW SIDNEY             47.79N 104.25W
06/10/2021  M74 MPH          RICHLAND           MT   PUBLIC

            FROM BRORSON NDAWN MESONET STATION.

0914 PM     TSTM WND GST     7 NW SIDNEY             47.79N 104.25W
06/10/2021  M74 MPH          RICHLAND           MT   PUBLIC

            FROM BRORSON NDAWN MESONET STATION.

0916 PM     TSTM WND GST     7 NW SIDNEY             47.79N 104.25W
06/10/2021  M90 MPH          RICHLAND           MT   PUBLIC

            FROM THE NDAWN MESONET- BRORSON STATION.

0916 PM     TSTM WND GST     7 NW SIDNEY             47.79N 104.25W
06/10/2021  M90 MPH          RICHLAND           MT   PUBLIC

            FROM THE NDAWN MESONET- BRORSON STATION.

0924 PM     TSTM WND GST     SIDNEY                  47.72N 104.16W
06/10/2021  E74 MPH          RICHLAND           MT   STORM CHASER

            ESTIMATED HURRICANE FORCE WINDS.

0924 PM     TSTM WND GST     SIDNEY                  47.72N 104.16W
06/10/2021  E74 MPH          RICHLAND           MT   STORM CHASER

            ESTIMATED HURRICANE FORCE WINDS.

1001 PM     TSTM WND GST     2 N WOOLEY              47.79N 104.11W
06/10/2021  M74 MPH          RICHLAND           MT   STORM CHASER

            .

1001 PM     TSTM WND GST     2 N WOOLEY              47.79N 104.11W
06/10/2021  M74 MPH          RICHLAND           MT   STORM CHASER

1003 PM     TSTM WND GST     8 NNE SNOWDEN           48.14N 104.05W
06/10/2021  M78 MPH          ROOSEVELT          MT   DEPT OF HIGHWAYS

            US-2 @ STATE LINE DOT SITE.

1018 PM     TSTM WND GST     8 E BAINVILLE           48.14N 104.05W
06/10/2021  M80 MPH          ROOSEVELT          MT   DEPT OF HIGHWAYS

            US 2 AT STATELINE DOT SITE.

1058 PM     TSTM WND GST     2 SE MEDICINE LAKE      48.49N 104.48W
06/10/2021  M65 MPH          SHERIDAN           MT   MESONET

            MEDICINE LAKE RAWS SITE (MLKM8) REPORTED 65
            MPH WIND GUSTS IN THE HOUR LEADING UP TO
            10:58 PM.

1110 PM     TSTM WND GST     7 W RESERVE             48.61N 104.61W
06/10/2021  E80 MPH          SHERIDAN           MT   PUBLIC

            PUBLIC ESTIMATED 80 MPH WIND GUSTS, WHICH
            MOVED THEIR OUTDOOR PROPANE TANK.

&&

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 heavy rain. Local standard time, as filed.

Heavy Rain, Sheridan

When
June 11, 9:00 AM MST
Where
Sheridan County, 0.83 mi NNW of Antelope
Reported by
Social Media
Coordinates
48.690, -104.460

Public reported, via Facebook, heavy rain totaling 3.8 inches from overnight.

Heavy Rain, Daniels

When
June 11, 10:00 AM MST
Where
Daniels County, 1.45 mi SSW of Peerless
Reported by
Social Media
Coordinates
48.780, -105.830

Public reported, via Facebook, a rainfall total of 2.18 inches near the town of Peerless.

Heavy Rain, Daniels

When
June 11, 4:33 PM MST
Where
Daniels County, Flaxville
Reported by
Social Media
Coordinates
48.800, -105.170

Public reported, via Facebook, a rainfall total of 2 inches from overnight in the town of Flaxville.

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.

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

The same day elsewhere

More

Every storm in Montana in 2021Every state in 2021This day in weather historyWarnings in Montana, June 2021

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: 969391, 969394, 969395.