Montana, 2001

Hail and Damaging Winds in Montana, June 24, 2001

June 24, 2001 · NWS BYZ · 6 events in 3 counties and zones

4 hail, 2 thunderstorm wind, as filed by the National Weather Service.

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
6

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 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 24, 1:30 PM MST, 3 hours 20 minutes earlier.

Area forecast discussion, Jun 24, 1:30 PM MST, 3 hours 20 minutes before
SOUTH CENTRAL AND SOUTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
230 PM MDT SUN JUN 24 2001

.MON AND TUE...
AIRMASS BECOMING MORE STABLE FROM BIL WEST AS FLOW GRADUALLY SHIFTS TO
THE NORTH WITH COOLER AIR MOVING IN BEHIND. THIS LINES UP RATHER WELL
WITH WHAT THE 12Z AVN DEPICTS AT THE 18Z HOUR. COOL FRONT THEN SETTLES
ALONG THE MT/WY BORDER TONIGHT ALLOWING STABLE AIR TO MOVE INTO THE
ENTIRE REGION FOR A BRIEF RESPITE FROM AFTERNOON/EVENING THUNDERSTORMS
ON MONDAY. UNTIL THEN...EXPECT THUNDERSTORMS AGAIN THIS EVENING WITH
DEVELOPMENT OVER THE SW MTNS AND MOVING E/NE INTO INCREASINGLY UNSTABLE
AIRMASS. MAIN CONCERN IS THE BHK AREA WHERE ETA MODEL PLOTS CAPES AROUND
1000 J/KG THROUGH MIDNIGHT TONIGHT AND WILL KEEP MENTION OF SEVERE THERE
WITH SCT POPS. WILL TAPER POPS FROM BIL WEST TO LVM FOR TONIGHT WITH
ISOLD SEVERE POSSIBLE. MOST OF SC/SE MT SHOULD BE DRY AND MILD MON BUT
WILL KEEP MENTION OF ISOLD STUFF OVER MTNS...POSSIBLY TRANSLATING EAST
ONTO THE PLAINS MON EVENING. MIXING FROM 700MB YIELDS HIGHS MON IN THE
MID/UPPER 80S...MID 90S TUE WITH RETURNING SOUTH FLOW/UNSTABLE AIRMASS
AND CHANCE OF THUNDERSTORMS. SPRINGER

.WED...THU...FRI...SAT...SUN...
EXTENDED MODELS AND 12Z AVN OUT TO 120HR ALL IN GOOD AGREEMENT.
LONGWAVE TROUGH TO REMAIN OFF WEST COAST WITH POSITIVELY TILTED
LONGWAVE RIDGE INLAND. MEAN RIDGE AXIS EXTENDS FROM EASTERN NORTH
DAKOTA TO 4 CORNERS IN SOUTHWEST USA THROUGH PERIOD. H5 HEIGHTS OVER
SOUTHERN MONTANA TO REMAIN AT 588 DM OR HIGHER THROUGH PERIOD.
FORECAST AREA WILL BE ALONG PERIPHERY OF RIDGE ALLOWING SOUTHWEST FLOW
ALOFT MOST OF PERIOD...ALLOWING PERIODIC SHORTWAVE ACTIVITY. TIMING OF
SYSTEMS TOUGH THAT FAR OUT. WILL MENTION HOT TEMPS ALONG WITH A CHANCE
OF AFTERNOON AND EVENING THUNDERSTORMS THOUGH THE PERIOD. FMR/MEX
GUIDANCE TOO COOL. SCARLETT

    MON     TUE     WED     THU     FRI     SAT     SUN
-----------------------------------------------------------
BIL 057/081 054/085 062/090 059/092 060/089 062/093 062/093
    30/B    23/T    33/T    33/T    33/T    33/T    33/T
LVM 050/078 048/083 055/088 052/089 054/088 055/090 055/088
    20/B    23/T    33/T    33/T    33/T    33/T    33/T
HDN 052/083 050/088 060/092 057/094 058/091 060/094 060/094
    30/B    23/T    33/T    33/T    33/T    33/T    33/T
MLS 062/083 057/087 063/095 065/096 063/093 063/096 064/096
    40/B    23/T    33/T    33/T    33/T    33/T    33/T
4BQ 059/083 055/087 062/094 064/096 064/093 064/095 063/095
    40/B    23/T    33/T    33/T    33/T    33/T    33/T
BHK 059/083 054/086 061/094 061/095 061/093 061/095 062/093
    40/B    23/T    33/T    33/T    33/T    33/T    33/T
SHR 053/082 049/084 055/092 055/092 055/089 055/092 055/094
    20/B    23/T    33/T    33/T    33/T    33/T    33/T

The radar

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

Open the radar archive at this moment

Event by event

4 hail, 2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Big Horn

When
June 24, 4:50 PM MST
Where
Big Horn County, 6 mi NE of Decker
Measured
70 kt (81 mph)
Reported by
TRAINED SPOTTER
Coordinates
45.067, -106.717

Hail, Big Horn

When
June 24, 5:00 PM MST
Where
Big Horn County, 6 mi NE of Decker
Measured
0.75 in hail
Reported by
LAW ENFORCEMENT
Coordinates
45.067, -106.717

Hail, Powder River

When
June 24, 5:30 PM MST
Where
Powder River County, 34 mi SW of Broadus
Measured
1.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
45.100, -105.917

Thunderstorm Wind, Powder River

When
June 24, 5:55 PM MST
Where
Powder River County, 2 mi W of Sonnette
Measured
60 kt (69 mph)
Reported by
TRAINED SPOTTER
Coordinates
45.417, -105.883

Hail, Carter

When
June 24, 6:50 PM MST
Where
Carter County, 24 mi W of Alzada
Measured
0.88 in hail
Reported by
TRAINED SPOTTER
Coordinates
45.017, -104.917

Hail, Carter

When
June 24, 6:50 PM MST
Where
Carter County, Ridge
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
45.050, -105.017

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.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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

The same day elsewhere

More

Every storm in Montana in 2001Every state in 2001This day in weather historyWarnings in Montana, June 2001

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: 5250289, 5250290, 5250286, 5250291, 5250287, 5250288.