A low pressure system over Canada brought a cold front down into Central Montana, bringing significantly cooler temps and isolated thunderstorms to North Central Montana.
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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 episode as NWS TFX wrote it up.
A low pressure system over Canada brought a cold front down into Central Montana, bringing significantly cooler temps and isolated thunderstorms to North Central Montana.
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 7, 2:24 AM MST, 36 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 324 AM MDT Mon Jul 7 2014 .DISCUSSION... Today through Wednesday...A shortwave has moved east of the zones which remain underneath northwest flow aloft and building high pressure. A weak cold front associated with the passing shortwave will move south through the region during the day. Some moisture will be at lower levels with the cold front but the air mass moving into the local area will be quite dry and generally stable today. The main effect across the region will be cooler temperatures. The upper level ridge will be over Central Montana late Tuesday and Wednesday. The southwest zones become unstable Tuesday afternoon but moisture for convection will be scarce. By Wednesday afternoon, a shortwave will be moving over Western Montana and the ridge will be flattened. Afternoon instability will be a little more widespread with the best combination of CAPE and shear over the southwest zones. The storms will be high-based and strong, gusty outflows are possible. Temperatures will cool today but trend back above normals Tuesday and Wednesday. Zelzer Wednesday night through Sunday...A warm weather pattern will continue to reside over the region for late next week and into next weekend. Expect afternoon temperatures to generally range from 6 to 12 degrees above normal...with only an isolated passing thunderstorm from time to time. An upper level ridge of high pressure will generally be over the region through the period...allowing for the above normal temperatures. On Wednesday evening...monsoonal moisture combined with an upper level disturbance moving through the region will be best chance/timeframe for a thunderstorm to form. For Thursday through Monday...no strong dynamics...combined with minimal amounts of monsoonal moisture...will only allow for isolated chances of any thunderstorm activity. Brusda && .AVIATION... UPDATED 0500Z. An upper level weather disturbance in WNW flow aloft will move east along the MT/AB border tonight, continuing across NE MT into ND on Monday. A few isolated thunderstorms will move east along the Canadian border tonight, including in the vicinity of the KCTB and KHVR terminals. Surface winds have already come around to the NW across most of the area with a somewhat stronger push from the N late tonight across the N-Central MT plains. A period of broken clouds at 4000-8000 ft AGL is likely at N-Central MT terminals late tonight into Monday morning as NW flow impinges on the central MT mtn ranges. VFR conditions will generally prevail with brief MVFR possible at KHVR and KCTB near thunderstorms tonight. Hoenisch && .PRELIMINARY POINT TEMPS/POPS... GTF 78 53 84 57 / 10 10 10 10 CTB 75 51 82 54 / 10 10 10 10 HLN 82 56 88 61 / 10 10 10 10 BZN 79 49 84 54 / 10 10 10 10 WEY 76 39 79 46 / 10 0 10 10 DLN 82 51 85 57 / 0 0 10 10 HVR 80 51 85 55 / 20 10 10 10 LWT 74 50 80 54 / 20 10 10 10 && .TFX WATCHES/WARNINGS/ADVISORIES... NONE. && weather.gov/greatfalls www.twitter.com/NWSGreatFalls www.facebook.com/US.NationalWeatherService.GreatFalls.gov
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREAT FALLS MT
355 AM MDT MON JUL 7 2014
MTZ047-071045-
BLAINE MT-
355 AM MDT MON JUL 7 2014
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BLAINE COUNTY UNTIL
445 AM MDT...
AT 355 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 6 MILES SOUTHWEST OF FORT BELKNAP...MOVING
SOUTHEAST AT 35 MPH.
HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.
* LOCATIONS IMPACTED INCLUDE...
FORT BELKNAP...
THIS STORM WILL ALSO AFFECT AREAS SOUTH OF FORTH BELKNAP...INCLUDING
HIGHWAY 66.
LAT...LON 4821 10842 4804 10842 4804 10844 4843 10909
4861 10881 4835 10839 4823 10840
TIME...MOT...LOC 0953Z 308DEG 30KT 4844 10890
BRUSDAThe Glasgow radar (KGGW), 155 km away, was scanning. The volume nearest the first event began at 10:02 UTC.
4 thunderstorm wind, 3 hail, 2 heavy rain. Local standard time, as filed.
High wind gusts, measuring 65KT (75 MPH), were reported at the Ft Belknap RAWS.
Large hail, measuring 1.00 inches (quarter sized), was reported.
Hail, measuring .88 inches (nickel sized), was reported along with .50 inches of rain.
Hail, measuring .88 inches (nickel sized), was reported.
High wind gusts, estimated at 50KT (58MPH), were reported along Highway 2 east of Chinook. Winds were responsible for blowing down a tree.
High wind gusts, estimated at 50KT (58MPH), were reported to hav knocked a tree down along Highway 2 east of Chinook, MT.
High wind gusts, estimated at 58KT (67MPH), were reported.
Heavy rain, measuring 0.88 inches in one hour, was reported.
Heavy rain, measuring .88 inches in an hour, was reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2014Every state in 2014This day in weather historyWarnings in Montana, July 2014
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: 535981, 535983, 535986, 535988, 535990, 535991, 535992, 535994, 535998.