Montana, 2001

Hail in Montana, July 12, 2001

July 12, 2001 · NWS TFX · 1 event in 1 county or zone

1 hail, 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
1

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 Great Falls, MT wrote its last area forecast discussion before the first event at Jul 12, 1:37 PM MST, 5 hours 3 minutes earlier.

Area forecast discussion, Jul 12, 1:37 PM MST, 5 hours 3 minutes before
SOUTHWEST AND NORTH CENTRAL MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
237 PM MDT THU JUL 12 2001

SYNOPSIS...LITTLE CHANGE EXPECTED. WARM TEMPERATURES TO CONTINUE
COUPLED WITH AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS.

DISCUSSION...PERSISTENT PATTERN REMAINS IN PLACE...UPPER LEVEL HIGH
PRESSURE RIDGE CENTERED OVER TX/NM BORDER WITH LOW PRESSURE TROUGH
OFF WEST COAST. SOUTHWEST FLOW CONTINUES TO FEED MOIST...UNSTABLE AIR
INTO CWA. SEVERAL EMBEDDED DISTURBANCES IN THE SOUTHWEST FLOW...
THOUGH MODELS APPEAR TO BE HAVING SOME DIFFICULTY IN RESOLUTION OF
LOCATION AND TRACKING. DYNAMICALLY...HAVE LI/S SLIGHTLY BELOW ZERO
ACROSS THE CWA WITH ISOLATED AREAS AT OR BELOW -5 ACCORDING TO GOES
IMAGER...AREAS OF LOWER LEVEL CONVERGENCE AND UPPER LEVEL
CONVERGENCE...COOL AIR BOUNDARY STRETCHED ACROSS THE NORTHERN CWA...
AND A DEEP MOISTURE LAYER WITH DEW POINTS IN THE MID 50S. SEVERAL
STORMS WERE DEVELOPING OVER THE CWA AT 20Z...MAINLY ALONG LEADING
EDGE OF DRY SLOT WORKING INTO CWA FROM THE SOUTHWEST. SOUTHWEST AND
NORTHEAST CWA SEEM MOSTLY LIKELY TO SEE SHOWERS AND/OR THUNDERSTORMS
TONIGHT...AND THERE IS THE POSSIBILITY THAT SOME COULD BE SEVERE.
DYNAMICS INCREASE SOME TOMORROW...AVN AND NGM DROP LI/S AS FAR AND
-8...BELIEVE THIS MAY BE OVERDONE BUT DO EXPECT AN ACTIVE DAY. WILL
KEEP TEMPERATURES NEAR TO SLIGHTLY ABOVE THOSE TODAY MOST AREAS...AND
WILL PUT POPS IN HIGHER SCATTERED CATEGORY.

.EXTENDED...MRF AND ECMF IN FAIRLY GOOD AGREEMENT THROUGH THE PERIOD
WITH KEEPING THE UPPER RIDGE ANCHORED OVER THE MIDWEST AND A TROUGH
OVER THE NORTHWEST. LITTLE HEIGHT CHANGE OVER US DESPITE UPPER LOW
MOVING NORTHEAST INTO ALBERTA. THIS REGIME OF MOIST/UNSTABLE
SOUTHWESTERLY FLOW WILL KEEP US IN UNSETTLED PERIOD RESULTING IN
LITTLE CHANGE TO EXTENDED. SCHMIDT

CCF NUMBERS
GTF TB 058/086 055/087 054 03533
CTB TB 055/082 052/084 052 03533
HLN TB 058/088 055/090 055 03554
BZN TB 055/086 054/087 054 03433
WEY TB 048/077 047/080 047 03434
DLN TB 053/083 053/085 054 03433
HVR EB 055/093 057/095 057 03534
LWT TB 055/085 054/086 055 03535

The radar

The Great Falls radar (KTFX), 175 km away, was scanning. The volume nearest the first event began at 01:38 UTC.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Hill

When
July 12, 6:40 PM MST
Where
Hill County, Havre
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
48.550, -109.683

Reported by former National Weather Service employee in Havre.

What these are

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, July 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: 5261185.