High winds developed over the Northern and Southern Rocky Mountain front areas.
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.
High winds developed over the Northern and Southern Rocky Mountain front areas.
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 Mar 14, 10:55 AM MST, 1 hour 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 1155 AM MDT Thu Mar 14 2013 Aviation section updated .UPDATE... Today...A cold front will be moving southward across the Hi-line late this morning and through the afternoon. Therefore...dropped high temps into the 30s and put areas of fog into the forecast near the Canadian border as it should remain nearly saturated in this region through the evening. Also, expecting northerly winds to veer to northeasterly on the cold side of the boundary with W/SW winds to the south. Uttech && .AVIATION... UPDATED 1755Z. A Canadian cold front has dropped southward into North Central MT this morning. Expect widespread low clouds/fog/IFR conditions to affect areas between Cut Bank and Havre through the period. The low clouds will spread southward into the Lewistown area this evening. Easterly winds will keep the cold air and low clouds in place in this region through much of Friday. Otherwise southwesterly winds will allow for VFR conditions...with mainly just mid/high level clouds over Southwest MT. Brusda && .PREV DISCUSSION... /ISSUED 545 AM MDT Thu Mar 14 2013/ Today through Saturday...A rather complex weather pattern beginning to take shape to close out the week. High pressure aloft will provide dry and unseasonably warm conditions over the area today. Temperatures, however, will not be quite as warm along the Hi-Line as a surface cold front will begin to slowly drop south during the afternoon. By late afternoon, the front should lie just north of Great Falls. The upper ridge rebuilds over the Pacific Northwest on Friday resulting in a moist and unstable northwest flow aloft over the area. Isolated showers will develop during the afternoon with rain and/or snow showers across the Hi-Line as this area will be under a colder airmass. Shortwave energy ejecting from the base of an upper trof over the Pacific Northwest will move across the area Saturday bringing scattered rain and/or snow showers. Accumulating precipitation Saturday will likely be confined to the Rocky Mountain Front and over the Big and Little Belt mountains. Temperatures will be 15 to 20 degrees above seasonal averages today but will cool to near seasonal averages Saturday. The exception will be along and north of the Hi-Line where temperatures will be below seasonal averages. Emanuel Saturday Night through Thursday...Models are coming into better agreement for widespread precipitation to develop across the Treasure State beginning Saturday night through Sunday night. An upper-level shortwave trough with ample Pacific moisture will move into the Northern Rockies Saturday night while a colder Canadian airmass pushes into areas along and east of the Continental Divide on Sunday. Temperatures over the central plains and southwest valleys will be above freezing Saturday evening resulting in a mix of rain and snow at the onset of precipitation, then change to all snow as temperatures fall overnight. Wet roadways will become snow-covered and icy Saturday night and Sunday morning, especially over mountain passes. Snow will continue through Sunday with highest snow amounts expected in the mountains at and above pass level. High temperatures will be in the mid 20s to low 30s. Confidence remains low on exact snowfall amounts though at this time snow amounts of 2 to 5 inches are possible over the plains and valleys with 5 to 10 inches in the mountains at and above pass level and locally higher amounts on north-facing slopes. The combination of colder temperatures and snow will also cause stress on young livestock. In addition, gusty northerly winds are expected over the plains on Sunday, which will further impact travel with low visibilities and blowing/drifting snow. Winds and snow will taper late Sunday night with overnight temperatures Sunday night falling well into the teens along the Hi-Line and teens to low 20s elsewhere. Will continue to closely monitor the progression of this system and update for possible winter weather highlights as confidence increases. Unsettled northwest flow aloft will persist through the middle part of the week with below-average temperatures. Long-range forecast models hint at another possible storm system Wednesday and Thursday, however the large spread between model solutions keep forecast confidence low. MLV && .PRELIMINARY POINT TEMPS/POPS... GTF 65 41 53 28 / 0 20 10 10 CTB 57 35 43 22 / 10 20 20 10 HLN 65 40 58 33 / 0 20 20 20 BZN 62 36 55 29 / 0 20 30 20 WEY 49 28 47 25 / 0 10 20 30 DLN 61 37 54 31 / 0 20 20 20 HVR 49 37 40 19 / 10 30 30 10 LWT 59 39 48 24 / 0 20 20 20 && .TFX WATCHES/WARNINGS/ADVISORIES... NONE. && weather.gov/greatfalls
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</html>7 high wind, 2 heavy snow. Local standard time, as filed.
High winds of 65KT (75MPH) were measured 2 miles SW of East Glacier Park.
High winds of 64KT (73MPH) were measured 1 mile ENE of East Glacier Park at the Two Medicine DoT site.
High winds of 53KT (61MPH) were measured 13 miles W of Bynum, MT at the Dellwo site.
High winds of 59KT (68MPH) were measured 17 miles W of Pendroy, MT at the Theodore Roosevelt Memorial Ranch.
High winds of 52KT (60MPH) were measured at the Heart Butte RAWS site.
High winds of 59KT (68MPH) were measured 8 miles SE of East Glacier Park at the Deep Creek RAWS site.
Heavy snow measuring 14 inches in 24 hours was reported at the Many Glacier SNOTEL (Elevation 4900ft).
Heavy snow measuring 9 inches in 6 hours was reported at the Brackett Creek SNOTEL (Elevation 7320ft).
High winds of 52KT (61MPH) were measured 12 miles WSW of Bynum, MT at Teton Pass ski area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2013Every state in 2013This day in weather historyWarnings in Montana, March 2013
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 2026-10-01. Each event’s entry at NCEI: 441041, 441042, 441044, 441049, 441050, 441047, 441055, 441074, 441058.