Waterlands
Ahtanum Creek
USGS · 12502500
AHTANUM CREEK
USGS · 12502500LIVE

AHTANUM CREEK AT UNION GAP, WA

YAKIMA COUNTY, WA46.5360°N, -120.4734°W Updated 9 hr ago
FLOW RATE
25cfs
AIR TEMP
67°F
WIND
9mph NNW
FISH INDEX
75SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
25cfs 9.3% vs avg
Optimal band: 4256 cfs
PERIOD HIGH
520cfs
PERIOD LOW
7cfs
RUNNABLE
7%
last 1 year in band
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

6.5in

≈ normal

6.45 in of precipitation so far this year — about average for this point in the season (normal 6.97 in).

YTD Total

6.5in

This year so far

Normal to Date

7.0in

30-yr average

Typical Range

4.6–9.9in

10th–90th pct YTD

Departure

-7%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 0.81" · normal 2.25" (0.9–3.8)
Jan
Feb: 1.58" · normal 1.61" (0.5–3.2)
Feb
Mar: 2.30" · normal 1.28" (0.5–2.3)
Mar
Apr: 1.15" · normal 0.79" (0.1–1.3)
Apr
May: 0.51" · normal 0.73" (0.3–1.3)
May
Jun: 0.11" (so far)· normal 0.37" (0.1–0.7)
Jun
Jul: normal 0.13" (0.0–0.3)
Jul
Aug: normal 0.11" (0.0–0.3)
Aug
Sep: normal 0.32" (0.0–0.7)
Sep
Oct: normal 1.14" (0.3–2.1)
Oct
Nov: normal 2.05" (0.7–3.7)
Nov
Dec: normal 2.56" (1.4–3.9)
Dec
Baseline 19912020 · Source: Open-Meteo08:13 AM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
92°
66°
WED
95°
71°
THU
89°
64°
FRI
78°
62°
SAT
75°
57°
SUN
77°
54°
MON
82°
56°
TIME
TUE
10
NOW
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
WED
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
THU
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
FRI
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SAT
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SUN
12
am
1
am
TEMP
hourly forecast
85°
mild
85°
87°
89°
90°
91°
92°
91°
91°
91°
90°
88°
82°
79°
78°
75°
74°
74°
73°
71°
71°
71°
76°
80°
85°
89°
91°
93°
94°
95°
95°
93°
90°
84°
73°
74°
74°
74°
73°
71°
69°
68°
66°
65°
64°
64°
65°
69°
73°
76°
78°
81°
83°
85°
88°
89°
88°
85°
81°
77°
74°
73°
70°
69°
67°
66°
64°
64°
63°
62°
63°
66°
68°
72°
74°
77°
76°
78°
75°
77°
75°
74°
72°
69°
68°
66°
64°
62°
60°
57°
57°
57°
57°
57°
57°
60°
62°
64°
67°
70°
72°
71°
73°
74°
75°
73°
70°
67°
65°
63°
61°
59°
57°
WIND
mph · gust · dir
3mph ESE
G 6 mph
3
G6
ESE
3
G7
S
5
G7
S
5
G7
SSW
6
G7
SSW
5
G8
SSW
5
G6
SSW
4
G7
SW
3
G6
SSW
4
G5
SSW
3
G7
ENE
2
G4
NE
2
G5
NE
3
G5
NNE
8
G9
NW
9
G12
NW
9
G13
NW
8
G11
NW
8
G11
NNW
8
G11
NNW
7
G11
NW
8
G11
NNW
8
G13
NNW
7
G10
N
5
G6
N
3
G5
NE
3
G4
E
8
G9
SW
8
G9
SSW
8
G9
SSW
15
G19
WNW
15
G19
NNW
18
G24
W
17
G20
NE
6
G9
NW
11
G20
NNW
10
G16
NNW
7
G11
NNW
6
G9
NNW
5
G7
NNW
5
G6
NNW
4
G6
NNW
3
G5
N
3
G4
NNW
4
G5
NNW
4
G6
NNW
4
NW
3
G4
W
4
SSW
6
S
7
SSE
7
SSE
5
S
3
G7
SSW
2
G8
SW
10
NNW
17
NW
16
NW
14
G16
NNW
10
G12
NNW
9
G11
NNW
9
G11
NW
7
G8
NNW
6
G9
N
7
G9
N
5
G8
N
4
G8
NW
5
G7
NNW
4
G8
NNW
5
G6
N
3
G7
WNW
2
G8
SSW
2
G9
SSE
3
G10
W
4
G12
NW
11
G16
SW
14
G15
SW
17
W
19
W
18
G23
WSW
17
G23
WSW
16
G21
WSW
13
G19
SW
10
G18
W
7
G17
W
6
G14
NNW
6
G7
NE
8
NE
9
NE
8
NNE
7
NNE
6
N
8
G11
NNW
9
G11
NNW
9
NW
8
WNW
7
W
7
WSW
5
G7
W
6
G7
NNW
10
N
9
NNW
9
NW
12
NW
13
G14
NW
14
G18
NW
15
G20
NNW
13
G19
NNW
11
G16
NNW
9
G13
NW
8
G11
NW
7
G10
NW
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
0%
0%
0%
0%
2%
2%
2%
2%
2%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
12%
12%
12%
12%
12%
12%
29%
29%
29%
29%
29%
29%
11%
11%
11%
11%
11%
11%
12%
12%
12%
12%
12%
12%
7%
7%
7%
7%
7%
7%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
2%
2%
2%
2%
2%
3%
3%
3%
3%
3%
3%
2%
2%
CLOUDS
cover %
99%
overcast
99%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
61%
0%
0%
0%
0%
0%
0%
0%
1%
37%
79%
50%
24%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
95%
13%
0%
0%
0%
0%
6%
8%
14%
13%
100%
100%
100%
96%
100%
100%
100%
100%
68%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
87%
100%
18%
100%
61%
84%
97%
100%
93%
100%
0%
6%
0%
6%
0%
6%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
94%
100%
100%
100%
100%
100%
100%
100%
100%
100%
95%
87%
80%
73%
66%
62%
65%
71%
PRESSURE
hPa · trend
985
985983981981982979977975974970971971971970970971972971973
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
75
Temperature
Ideal
Wind
Light
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:09 AM
SUNSET
08:58 PM
15H 49M OF DAYLIGHT11H 18M REMAINING
MOON PHASE
First Quarter
58% illuminated

Station Location

46.5360, -120.4734
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-23 09:40 UTC
Site #12502500·USGS

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