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Shaded-relief map of Lost Springs, Wyoming: rivers, roads, the city limits and where the water drains.
WYOMING · CONVERSE COUNTY

Lost Springs

4 people, 5,000 ft above sea level in Converse County.

5,000 ftElevation, city center
4People, 2024 estimate
0 sq miLand area
Sunny 47°
Sunny now Dew point 38° · SE 13 mph · high 51°
City of Lost Springs River Interstate 2 miles
Explore the plate Order a print

The Lost Springs 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 Lost Springs

NWS forecast and National Blend of Models · updated 11:00 AM MST
RIGHT NOW Converse County Airport (KDGW) · 12:53 PM
Sunny
47° Sunny Feels like 41° · high of 51° near 2 PM
WindSE 13 mphno gusts
Humidity71%falling to 59% this afternoon
Pressure29.76 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 38° · Dry28° by Monday: drier air arrives
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Friday70% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 30.02 in · 11 dry days
ALERTS & OUTLOOKS
No watches or warnings for Converse County
NWS Cheyenne and the Storm Prediction Center · checked 1:18 PM
SUN & MOON
↑ 6:50 AM4:38 PM ↓
9 h 47 m of daylight, 2 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
19
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
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partly cloudy day
mostly cloudy night
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mostly clear night
partly cloudy night
mostly clear night
mostly sunny
clear day
mostly sunny
mostly clear night
mostly clear night
mostly clear night
mostly clear night
mostly clear night
partly cloudy day
partly cloudy day
partly cloudy day
mostly cloudy night
partly cloudy night
partly cloudy night
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partly cloudy night
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mostly sunny
TEMPERATURE °F
50°
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58°
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CHANCE OF RAIN
50%
WIND, MPH
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HOW IT FEELS · DEW POINT
Dry: dew points 28 to 39°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 49° / 21°
SAT Nov. 14 Partly cloudy Partly cloudy
51° 29°
0% rain — SE 10 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
60° 29°
0% rain — W 9 B
MON Nov. 16 Partly cloudy Partly cloudy
63° 32°
0% rain — SSE 4 B
TUE Nov. 17 Partly cloudy Partly cloudy
61° 31°
10% rain — SSW 6 B
WED Nov. 18 Mostly sunny; cooler Mostly sunny; cooler
49° 24°
20% rain — WNW 7 C
THU Nov. 19 Partly cloudy Partly cloudy
52° 28°
20% rain — SSE 9 C
FRI Nov. 20 Showers likely Showers likely
46° 23°
70% rain 0.03–0.7″ WNW 13 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 Lost Springs about 5,000 feet above the ground was over the Pacific Northwest three days ago, and over the northern Rockies a day ago, about 730 miles back along its path. Near the ground the air came from the Pacific Northwest; at 10,000 feet, from the Great Basin. It feels dry all the same. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

MILE2
THE GROUND

What Lost Springs stands on

Lost Springs’s center stands about 5,000 ft above sea level. Within three miles the land runs from 4,920 ft to 5,310 ft, a difference of 390 ft: rolling country. The highest named summit within 15 miles is Lone Tree Hill, about 6,060 ft, 14 miles east-southeast.

Under the town center the state geologic map shows Lower Miocene and Upper Oligocene rocks or rocks equivalent to Upper and Lower Miocene rocks and White River Formation (sandstone, siltstone, claystone), from the Late Oligocene to Late Miocene, 5.3 to 28 million years old.

The section below crosses 3 rock units mapped at the surface.

Lost Springs, cut in half from south to north

A section south to north, 24 miles through the town center
4,750 ft5,000 ft5,250 ft LOST SPRINGS5,000 ftLow point4,670 ftRocky Top5,350 ft ← SN →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 29×. 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

Lower Miocene and Upper Oligocene rocks or rocks equivalent to Upper and Lower Miocene rocks and White River Formation

Sandstone, siltstone, claystone. Age: Late Oligocene to Late Miocene, 5.3 to 28 million years old. About 16 mi of the line.

Fort Union Formation - Tullock Member

Sandstone, shale. Age: Paleocene, 56 to 66 million years old. About 7 mi of the line.

White River Formation

Claystone, conglomerate. Age: Late Eocene to Early Oligocene, 31 to 35 million years old. About 1 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 Lost Springs’s rain goes

A raindrop that lands in Lost Springs reaches the Gulf of America by way of Lost Creek, the North Platte, the Platte, the Missouri and the Mississippi: about 2,410 river miles.

THE WAY DOWN, TO SCALE
Lost Springs≈ 2,410 mi · the Gulf of America
FROM THE CENTER OF LOST SPRINGS ≈ 2,410 mi to the Gulf of America Lost Creek → North Platte → Platte → Missouri → Mississippi

1,170 miles of the trip are on the Mississippi.

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

MILE7
ON THE NETWORK

Around Lost Springs on the Forecast Network

Neighboring plates

Casper WY · 71 MI 71 miles west Cheyenne WY · 113 MI 113 miles south Rapid City SD · 124 MI 124 miles northeast
FORECASTCITY
Map of Lost Springs, Wyoming. Explore the plate
WYOMING · CONVERSE

Lost Springs

4 people, 5,000 ft above sea level in Converse County.

5,000 ftElevation
4People
0 sq miLand
Sunny 47°
SunnyDew point 38°
1

Today in Lost Springs

NEXT 15 HOURS
Now partly cloudy day 50° 0%
4p partly cloudy day 49° 0%
7p partly cloudy night 40° 0%
10p mostly clear night 36° 0%
1a partly cloudy night 34° 0%
4a mostly clear night 32° 0%
Rain
NEXT RAINFriday · 70%
→
Sat0%
Partly cloudy Partly cloudy
29
51
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
29
60
B
Mon0%
Partly cloudy Partly cloudy
32
63
B
Tue10%
Partly cloudy Partly cloudy
31
61
B
Wed20%
Mostly sunny; cooler Mostly sunny; cooler
24
49
C
Thu20%
Partly cloudy Partly cloudy
28
52
C
Fri70%
Showers likely Showers likely
23
46
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
2

What Lost Springs stands on

Lost Springs’s center stands about 5,000 ft above sea level. Within three miles the land runs from 4,920 ft to 5,310 ft, a difference of 390 ft: rolling country. The highest named summit within 15 miles is Lone Tree Hill, about 6,060 ft, 14 miles east-southeast.

Lost Springs, south to north Lost Springs5,000 ft ← SN → 24 miles through the town center; vertical exaggeration about 55×. Colors: rock at the surface.
Elevation, center5,000 ft
Within 3 miles4,920 to 5,310 ft
Lie of the landRolling (390 ft of relief)
High point nearbyLone Tree Hill, 6,060 ft, 14 mi east-southeast
Rock at the surfaceLower Miocene and Upper Oligocene rocks or rocks equivalent to Upper and Lower Miocene rocks and White River Formation
Its ageLate Oligocene to Late Miocene, 5.3 to 28 million years old
3

Where the rain goes

≈ 2,410 mito the Gulf of AmericaLost Creek → North Platte → Platte → Missouri → Mississippi

A raindrop that lands in Lost Springs reaches the Gulf of America by way of Lost Creek, the North Platte, the Platte, the Missouri and the Mississippi: about 2,410 river miles.

1,170 miles of the trip are on the Mississippi.