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Shaded-relief map of Java, South Dakota: rivers, roads, the city limits and where the water drains.
SOUTH DAKOTA · WALWORTH COUNTY

Java

120 people, 2,080 ft above sea level in Walworth County.

2,080 ftElevation, city center
120People, 2024 estimate
0 sq miLand area
Sunny 47°
Sunny now Dew point 32° · S 25 mph · high 46°
City of Java River Interstate 2 miles
Explore the plate Order a print

The Java 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 Java

NWS forecast and National Blend of Models · updated 11:00 AM CST
RIGHT NOW Mobridge Municipal Airport (KMBG) · 11:52 AM
Sunny
47° Sunny Feels like 39° · high of 46° near 3 PM
WindS 25 mphgusts 33
Humidity56%falling to 65% this afternoon
Pressure29.96 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 32° · Dry43° by Sunday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Mostly cloudy
Wednesday30% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 20.59 in · 12 dry days
ALERTS & OUTLOOKS
No watches or warnings for Walworth County
NWS Aberdeen and the Storm Prediction Center · checked 12:47 PM
SUN & MOON
↑ 7:37 AM5:10 PM ↓
9 h 33 m of daylight, 2 minutes less than yesterday
Waxing crescent, 25% lit. Next full moon: Nov. 24.
AIR & POLLEN
46
GOODAir quality index · fine particles
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
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
windy
partly cloudy day
mostly clear night
partly cloudy night
mostly clear night
mostly clear night
mostly clear night
mostly sunny
clear day
clear day
mostly clear night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
partly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
partly cloudy day
TEMPERATURE °F
42°
37°
55°
39°
56°
41°
CHANCE OF RAIN
50%
WIND, MPH
21
20
18
20
18
17
16
17
18
15
12
12
10
8
7
8
10
9
7
7
9
10
11
11
HOW IT FEELS · DEW POINT
Dry: dew points 30 to 43° More humid: 42° by Tuesday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 45° / 23°
SAT Nov. 14 Mostly sunny Mostly sunny
46° 34°
0% rain — SSE 21, gusts 35 A
SUN Nov. 15 Mostly sunny; warmer Mostly sunny; warmer
56° 37°
0% rain — S 17, gusts 31 B
MON Nov. 16 Partly cloudy Partly cloudy
57° 38°
0% rain — S 9 B
TUE Nov. 17 Partly cloudy Partly cloudy
55° 36°
0% rain — SSE 8 B
WED Nov. 18 Mostly cloudy Mostly cloudy
48° 31°
30% rain — NW 12 C
THU Nov. 19 Mostly cloudy Mostly cloudy
42° 30°
0% rain — E 7 C
FRI Nov. 20 Chance of showers Chance of showers
44° 29°
60% rain up to 0.7″ ENE 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 Java about 5,000 feet above the ground was over the Pacific Northwest three days ago, and over the northern Rockies a day ago, about 990 miles back along its path. It rose from near the ground on the way. Near the ground the air came from the open Pacific; 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 Java stands on

Java’s center stands about 2,080 ft above sea level. Within three miles the land runs from 1,940 ft to 2,160 ft, a difference of 220 ft: rolling country.

Under the town center the state geologic map shows Pierre Shale (shale, bentonite), from the Late Cretaceous, 66 to 100 million years old.

Java, cut in half from northwest to southeast

A section northwest to southeast, 24 miles through the town center
1,800 ft2,000 ft JAVA2,080 ftLow point1,710 ftBowdle1,970 ft ← NWBowdle · SE →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 40×. 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

Pierre Shale

Shale, bentonite. Age: Late Cretaceous, 66 to 100 million years old. About 24 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 Java’s rain goes

A raindrop that lands in Java reaches the Gulf of America by way of Hiddenwood Creek, Spring Creek, the Missouri and the Mississippi: about 2,460 river miles.

THE WAY DOWN, TO SCALE
Java≈ 2,460 mi · the Gulf of America
FROM THE CENTER OF JAVA ≈ 2,460 mi to the Gulf of America Hiddenwood Creek → Spring Creek → Missouri → Mississippi

Lakes on the way: Lake Oahe, Lake Sharpe, Lake Francis Case and Lewis and Clark Lake.

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 Java; river miles along the main stem, rounded.

MILE7
ON THE NETWORK

Around Java on the Forecast Network

Neighboring plates

Bismarck ND · 100 MI 100 miles northwest
FORECASTCITY
Map of Java, South Dakota. Explore the plate
SOUTH DAKOTA · WALWORTH

Java

120 people, 2,080 ft above sea level in Walworth County.

2,080 ftElevation
120People
0 sq miLand
Sunny 47°
SunnyDew point 32°
1

Today in Java

NEXT 15 HOURS
Now windy 42° 0%
3p windy 46° 0%
6p partly cloudy night 42° 0%
9p mostly clear night 39° 0%
12a partly cloudy night 38° 0%
3a mostly clear night 38° 0%
Mostly cloudy
NEXT RAINWednesday · 30%
→
Sat0%
Mostly sunny Mostly sunny
34
46
A
Sun0%
Mostly sunny; warmer Mostly sunny; warmer
37
56
B
Mon0%
Partly cloudy Partly cloudy
38
57
B
Tue0%
Partly cloudy Partly cloudy
36
55
B
Wed30%
Mostly cloudy Mostly cloudy
31
48
C
Thu0%
Mostly cloudy Mostly cloudy
30
42
C
Fri60%
Chance of showers Chance of showers
29
44
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
2

What Java stands on

Java’s center stands about 2,080 ft above sea level. Within three miles the land runs from 1,940 ft to 2,160 ft, a difference of 220 ft: rolling country.

Java, northwest to southeast Java2,080 ft ← NWSE → 24 miles through the town center; vertical exaggeration about 76×. Colors: rock at the surface.
Elevation, center2,080 ft
Within 3 miles1,940 to 2,160 ft
Lie of the landRolling (220 ft of relief)
Rock at the surfacePierre Shale
Its ageLate Cretaceous, 66 to 100 million years old
3

Where the rain goes

≈ 2,460 mito the Gulf of AmericaHiddenwood Creek → Spring Creek → Missouri → Mississippi

A raindrop that lands in Java reaches the Gulf of America by way of Hiddenwood Creek, Spring Creek, the Missouri and the Mississippi: about 2,460 river miles.

Lakes on the way: Lake Oahe, Lake Sharpe, Lake Francis Case and Lewis and Clark Lake.

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