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Shaded-relief map of Snowslip, Montana: rivers, roads, the city limits and where the water drains.
MONTANA · FLATHEAD COUNTY

Snowslip

39 people, 4,390 ft above sea level in Flathead County.

4,390 ftElevation, city center
39People, 2024 estimate
1 sq miLand area
Sunny 34°
Sunny now Dew point 33° · Calm · high 42°
City of Snowslip River Interstate 2 miles
Explore the plate Order a print

The Snowslip plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Snowslip

NWS forecast and National Blend of Models · updated 11:00 AM MST
RIGHT NOW Glacier Park International Airport (KGPI) · 12:55 PM
Sunny
34° Sunny Feels like 34° · high of 42° near 1 PM
WindCalmno gusts
Humidity96%falling to 76% this afternoon
Pressure29.82 in →steady
Visibility4 mihazy
CloudsClear
UV index—no forecast
Dew point 33° · Dryabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Showers
Tuesday30% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAIN—none in 31 days
ALERTS & OUTLOOKS
No watches or warnings for Flathead County
NWS Missoula and the Storm Prediction Center · checked 1:16 PM
SUN & MOON
↑ 7:39 AM4:57 PM ↓
9 h 17 m of daylight, 3 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
5
GOODAir quality index · ozone
No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
1p
4p
7p
10p
1a
4a
7a
10a
mostly cloudy day
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
mostly clear night
mostly sunny
mostly sunny
mostly sunny
mostly clear night
partly cloudy night
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
TEMPERATURE °F
42°
32°
45°
36°
39°
31°
CHANCE OF RAIN
50%
WIND, MPH
10
8
8
8
7
6
6
8
12
8
7
6
5
3
3
6
7
5
3
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2
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1
2
HOW IT FEELS · DEW POINT
Dry: dew points 28 to 36°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 62°
SAT Nov. 14 Partly cloudy Partly cloudy
42° 31°
0% rain — WSW 10 A
SUN Nov. 15 Mostly sunny Mostly sunny
47° 34°
10% rain — WSW 9 B
MON Nov. 16 Mostly cloudy Mostly cloudy
41° 30°
30% rain — WSW 5 B
TUE Nov. 17 Chance of showers Chance of showers
36° 26°
30% rain up to 0.1″ WNW 2 B
WED Nov. 18 Partly cloudy Partly cloudy
38° 26°
10% rain — ENE 1 C
THU Nov. 19 Mostly cloudy Mostly cloudy
37° 25°
20% rain — NE 2 C
FRI Nov. 20 Partly cloudy Partly cloudy
35° 24°
20% rain — W 2 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Snowslip about 5,000 feet above the ground was over the Pacific north of Hawaii three days ago, and over the Pacific Northwest a day ago, about 1,620 miles back along its path. It came down from about 15,700 feet up, warming and drying as it sank. Near the ground the air came from British Columbia; at 10,000 feet, from the Pacific north of Hawaii. It feels dry all the same. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

MILE2
THE GROUND

What Snowslip stands on

Snowslip’s center stands about 4,390 ft above sea level. Within three miles the land runs from 4,340 ft to 7,210 ft, a difference of 2,870 ft: mountain country. The highest named summit within 15 miles is Mount Rockwell, about 9,150 ft, 13 miles north.

Under the town center the state geologic map shows Piegan Group: Helena and Wallace Formations (quartzite, metasiltstone, argillite), from the Mesoproterozoic, 1 to 1.6 billion years old.

The section below crosses 5 rock units mapped at the surface.

Snowslip, cut in half from south to north

A section south to north, 24 miles through the town center
4,000 ft5,000 ft6,000 ft7,000 ft8,000 ft SNOWSLIP4,390 ftMiddle Fork Flathead Riverabout 4,460 ftSoldier Mountain7,290 ftSalvage Mountain8,160 ftLow point4,060 ft ← SN →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 5×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.

Rock at the surface along the line

Upper Missoula Group: McNamara, Bonner, and Mount Shields Formations; locally includes lower Libby Formation in northwestern Montana

Metasiltstone, argillite, quartzite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 6 mi of the line.

Upper Prichard or Appekunny Formation

Metasiltstone, argillite, quartzite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 6 mi of the line.

Piegan Group: Helena and Wallace Formations

Quartzite, metasiltstone, argillite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 6 mi of the line.

Lower Missoula Group: Shepard and Snowslip Formations; or Shepard Formation and unresolved Snowslip Formation equivalent

Metasiltstone, argillite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 5 mi of the line.

Ravalli Group: St. Regis, Revett, and Burke Formations; or Empire and Grinnell Formations; or Empire and Spokane Formations

Quartzite, argillite, metasiltstone. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 2 mi of the line.

From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
MILE3
THE WATER

Where Snowslip’s rain goes

A raindrop that lands in Snowslip reaches the Pacific Ocean by way of Bear Creek, the Middle Fork Flathead, the Flathead, the Clark Fork, the Pend Oreille and the Columbia: about 1,170 river miles.

THE WAY DOWN, TO SCALE
Snowslip≈ 1,170 mi · the Pacific Ocean
FROM THE CENTER OF SNOWSLIP ≈ 1,170 mi to the Pacific Ocean Bear Creek → Middle Fork Flathead → Flathead → Clark Fork → Pend Oreille → Columbia

Lakes on the way: Flathead Lake, Lake Pend Oreille, Lake Umatilla and Noxon Rapids Reservoir.

460 miles of the trip are on the Columbia.

Traced down the USGS NHDPlus V2.1 river network from the Census center point of Snowslip; river miles along the main stem, rounded.

MILE7
ON THE NETWORK

Around Snowslip on the Forecast Network

Neighboring plates

Missoula MT · 100 MI 100 miles south Great Falls MT · 113 MI 113 miles southeast Coeur d'Alene ID · 160 MI 160 miles west
FORECASTCITY
Map of Snowslip, Montana. Explore the plate
MONTANA · FLATHEAD

Snowslip

39 people, 4,390 ft above sea level in Flathead County.

4,390 ftElevation
39People
1 sq miLand
Sunny 34°
SunnyDew point 33°
1

Today in Snowslip

NEXT 15 HOURS
Now mostly cloudy day 42° 1%
4p partly cloudy day 39° 1%
7p partly cloudy night 37° 1%
10p partly cloudy night 37° 1%
1a mostly cloudy night 36° 1%
4a mostly clear night 35° 2%
Showers
NEXT RAINTuesday · 30%
→
Sat0%
Partly cloudy Partly cloudy
31
42
A
Sun10%
Mostly sunny Mostly sunny
34
47
B
Mon30%
Mostly cloudy Mostly cloudy
30
41
B
Tue30%
Chance of showers Chance of showers
26
36
B
Wed10%
Partly cloudy Partly cloudy
26
38
C
Thu20%
Mostly cloudy Mostly cloudy
25
37
C
Fri20%
Partly cloudy Partly cloudy
24
35
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
2

What Snowslip stands on

Snowslip’s center stands about 4,390 ft above sea level. Within three miles the land runs from 4,340 ft to 7,210 ft, a difference of 2,870 ft: mountain country. The highest named summit within 15 miles is Mount Rockwell, about 9,150 ft, 13 miles north.

Snowslip, south to north Snowslip4,390 ftMiddle Fork Flathead Riverabout 4,460 ft ← SN → 24 miles through the town center; vertical exaggeration about 9×. Colors: rock at the surface.
Elevation, center4,390 ft
Within 3 miles4,340 to 7,210 ft
Lie of the landMountainous (2,870 ft of relief)
High point nearbyMount Rockwell, 9,150 ft, 13 mi north
Rock at the surfacePiegan Group: Helena and Wallace Formations
Its ageMesoproterozoic, 1 to 1.6 billion years old
3

Where the rain goes

≈ 1,170 mito the Pacific OceanBear Creek → Middle Fork Flathead → Flathead → Clark Fork → Pend Oreille → Columbia

A raindrop that lands in Snowslip reaches the Pacific Ocean by way of Bear Creek, the Middle Fork Flathead, the Flathead, the Clark Fork, the Pend Oreille and the Columbia: about 1,170 river miles.

Lakes on the way: Flathead Lake, Lake Pend Oreille, Lake Umatilla and Noxon Rapids Reservoir.

460 miles of the trip are on the Columbia.