Heavy Snow in Montana, June 6 to 7, 2007

Name: Heavy Snow in Montana, June 6 to 7, 2007
Start: 2007-06-06T05:00
End: 2007-06-07T07:00
Location: Montana

June 6 to 7, 2007 · NWS MSO · 3 events in 3 counties and zones

On June 6 and 7, an unseasonably cold upper level low pressure system moved east across the region producing heavy, wet snowfall in the higher elevations of Southwestern Montana.

Where it happened

Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. 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: $6,000
Crop damage: None recorded
Events: 3

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 happened

The episode as NWS MSO wrote it up.

On June 6 and 7, an unseasonably cold upper level low pressure system moved east across the region producing heavy, wet snowfall in the higher elevations of Southwestern Montana.

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 Missoula, MT wrote its last area forecast discussion before the first event at Jun 5, 1:49 PM MST, 15 hours 11 minutes earlier.

Area forecast discussion, Jun 5, 1:49 PM MST, 15 hours 11 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
249 PM MDT TUE JUN 5 2007

.DISCUSSION...ACTIVE WEATHER IS EXPECTED THIS EVENING AS A COLD
FRONT INTERACTS WITH AMPLE MOISTURE AND SUPPORTIVE UPPER
ATMOSPHERE WINDS. MAIN CONCERN IS HEAVY RAINFALL...BUT GUSTY WINDS
AND HAIL ARE A THREAT AS WELL. RAIN SHOULD DECREASE A LITTLE
OVERNIGHT AS UPPER LEVEL ENERGY ROTATES THROUGH...BUT MORE
PRECIPITATION WILL DEVELOP WEDNESDAY AND WEDNESDAY NIGHT AS THE
MAIN UPPER LOW WRAPS MOISTURE AROUND FROM THE EAST AND CONVERGES
ALONG THE CONTINETAL DIVIDE OVER WESTERLY UPSLOPE WIND FLOW.

FOR THURSDAY THROUGH THE EXTENDED...RIDGE OF HIGH PRESSURE BRIEFLY
DEVELOPS BEFORE WESTERLY ZONAL WIND FLOW TAKES OVER AHEAD OF NEXT
WEEKS PACIFIC SYSTEM. NEAR NORMAL TEMPERATURES ARE EXPECTED WITH
LOW CHANCES OF SHOWERS.

&&

.AVIATION...HAIL...HEAVY RAIN AND LOWERED CEILINGS WITH
TUNDERSTORMS WILL IMPACT AIRPORTS AND ROUTES THIS EVENING.
ACTIVITY SHOULD DECREASE BY MIDNIGHT AND TRANSITION TO BROADER
AREAS OF RAIN AND MOUNTAIN SNOW WEDNESDAY. SEE APPROPRIATE TAFS
AND TWEBS.

&&

.HYDROLOGY...FORECAST PRECIPIATION AMOUNTS WITH THUNDERSTORMS THIS
EVENING WILL RUN ABOVE THREE-QUARTERS OF AN INCH...WHICH MAY
RESULT IN LOCAL FLOODING AND ROCK SLIDES IN PRONE AREAS OF GLACIER
PARK. MORE WIDESPREAD MODERATE RAIN IS EXPECTED WEDNESDAY AND
WEDNESDAY NIGHT AS UPPER LOW WRAPS MOISTURE BACK INTO THE NORTHERN
ROCKIES. THIS WILL BE MONITORED FOR POSSIBLE STREAM RISES BY
THURSDAY MORNING.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...NONE.
ID...NONE.
&&

SIGLER

The radar

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

Open the radar archive at this moment

Event by event

3 heavy snow. Local standard time, as filed.

Heavy Snow, Butte / Blackfoot Region

When: June 6, 5:00 AM MST to June 7, 6:00 AM MST
Where: Butte / Blackfoot Region forecast zone
Property damage: $6,000
Reported by: Mesonet
Coordinates: 46.306, -113.025 (the zone’s center; the record gives no point)

The late winter weather system produced snow fall amounts of 4 to 15 inches across the higher elevations near and along the Continental Divide. The Warm Springs Snotel reported 15 inches of snow accumulations. Georgetown Lake and Barker Lakes reported 8 inches, North Fork of Elk Creek 7 inches, Basin Creek and Peterson Meadows 4 inches of snow accumulations. Heavy snow knocked down several trees in the Anaconda area.

Heavy Snow, Potomac / Seeley Lake Region

When: June 6, 6:00 AM MST to June 7, 6:00 AM MST
Where: Potomac / Seeley Lake Region forecast zone
Reported by: Mesonet
Coordinates: 46.986, -113.597 (the zone’s center; the record gives no point)

The late winter weather system produced snow fall amounts of 6 to 10 inches across the higher elevations near and along the Continental Divide and over the Rattlesnake Range. Point Six received 10 inches of snow accumulations, Stuart Mountain received 8 inches, Stinkwater and Pistol Creeks received 7 and 6 inches of snow accumulations, respectively.

Heavy Snow, Bitterroot / Sapphire Mountains

When: June 6, 7:00 AM MST to June 7, 7:00 AM MST
Where: Bitterroot / Sapphire Mountains forecast zone
Reported by: Mesonet
Coordinates: 46.508, -113.828 (the zone’s center; the record gives no point)

The late winter weather system produced snow fall amounts of 5 to 8 inches across the higher elevations of the Bitterroot and Sapphire mountains. Twin Lakes and Saddle Mountain received 8 inches of snow accumulations. Skalkaho Summit received 7 inches, and Black Pine received 5 inches of snow accumulations.

What these are

Heavy Snow: Snowfall reaching the local warning threshold without the other hazards of a winter storm.

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

The same day elsewhere

Every storm in Montana in 2007 Every state in 2007 This day in weather history Warnings in Montana, June 2007

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 2026-10-01. Each event’s entry at NCEI: 29715, 29716, 29714.