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.
1 hail, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
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.
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.
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 Great Falls radar (KTFX), 175 km away, was scanning. The volume nearest the first event began at 01:38 UTC.
1 hail. Local standard time, as filed.
Reported by former National Weather Service employee in Havre.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2001Every state in 2001This day in weather historyWarnings in Montana, July 2001
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.