Waterlands
Arrowhead Run
USGS · 03075850
ARROWHEAD RUN
USGS · 03075850LIVE

ARROWHEAD RUN AT THAYERVILLE, MD

GARRETT COUNTY, MD39.5027°N, -79.3272°W Updated 18 hr ago
FLOW RATE
4cfs
AIR TEMP
66°F
WIND
10mph NNW
FISH INDEX
75SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
4cfs 43.4% vs avg
Optimal band: 11 cfs
PERIOD HIGH
24cfs
PERIOD LOW
1cfs
RUNNABLE
62%
last 1 year in band
Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

20.5in

-19% vs normal

20.52 in of precipitation so far this year, 19% below the 30-year normal of 25.33 in for this point in the season.

YTD Total

20.5in

This year so far

Normal to Date

25.3in

30-yr average

Typical Range

20.2–30.1in

10th–90th pct YTD

Departure

-19%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.67" · normal 3.80" (2.1–5.5)
Jan
Feb: 1.92" · normal 3.59" (1.9–6.0)
Feb
Mar: 3.82" · normal 4.46" (2.6–6.3)
Mar
Apr: 3.30" · normal 4.56" (2.7–6.5)
Apr
May: 4.51" · normal 5.21" (3.1–7.0)
May
Jun: 3.31" (so far)· normal 4.58" (2.6–6.4)
Jun
Jul: normal 4.02" (2.5–5.7)
Jul
Aug: normal 3.27" (1.9–4.7)
Aug
Sep: normal 4.10" (1.5–8.2)
Sep
Oct: normal 3.48" (1.2–5.5)
Oct
Nov: normal 3.31" (1.5–4.7)
Nov
Dec: normal 3.79" (2.2–5.3)
Dec
Baseline 19912020 · Source: Open-Meteo05:36 PM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
67°
56°
WED
71°
50°
THU
80°
54°
FRI
66°
61°
SAT
76°
63°
SUN
82°
59°
MON
78°
60°
TIME
TUE
7
NOW
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
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
TEMP
hourly forecast
65°
mild
65°
62°
59°
57°
56°
55°
54°
53°
52°
51°
50°
50°
52°
57°
61°
63°
65°
66°
68°
69°
70°
71°
71°
70°
70°
67°
63°
61°
59°
58°
57°
56°
56°
55°
55°
54°
56°
63°
64°
70°
73°
75°
77°
79°
79°
80°
79°
74°
67°
65°
63°
62°
62°
62°
61°
61°
61°
61°
61°
61°
62°
64°
66°
66°
65°
64°
66°
64°
64°
64°
64°
65°
65°
65°
64°
64°
65°
65°
65°
65°
64°
64°
64°
64°
63°
64°
64°
64°
65°
66°
68°
73°
76°
76°
73°
71°
71°
68°
65°
63°
63°
62°
61°
60°
60°
60°
59°
59°
61°
65°
69°
73°
77°
80°
82°
WIND
mph · gust · dir
8mph NW
G 17 mph
8
G17
NW
6
G20
NW
5
G10
WNW
5
G10
WNW
6
G12
NW
6
G13
NW
6
G12
NW
5
G11
NW
5
G9
WNW
5
G7
WNW
5
G7
WNW
3
G4
WNW
3
G4
W
1
G8
NNW
2
G7
NNE
3
G6
N
4
G6
NNW
5
G6
WNW
4
G6
WNW
5
G7
WNW
5
G7
WNW
5
G6
WNW
5
G7
W
5
G8
WSW
5
G8
W
3
G8
W
4
G5
WNW
4
NNW
4
G5
ENE
3
G5
E
3
G5
E
1
G3
NE
2
G4
ENE
1
G2
NNW
2
NNW
2
G4
S
3
G6
SSW
6
G12
SW
9
G16
WSW
13
G14
W
13
G15
WSW
12
G14
WSW
12
G15
WSW
12
G16
WSW
12
G17
WSW
12
G17
WSW
12
G17
WSW
9
G19
WNW
5
G21
NW
2
G18
NW
6
NW
3
WNW
3
G7
W
4
G10
W
3
SW
4
WSW
3
SW
4
G5
SW
3
WSW
3
SW
2
G4
SW
1
G3
SSE
2
G3
N
3
N
2
G11
ENE
5
G11
ENE
7
G15
ESE
7
G11
SE
8
G15
S
8
G27
SSW
10
G25
SW
10
G26
WSW
11
G28
WSW
9
G18
WSW
7
WSW
7
G26
SW
10
G20
WSW
8
G20
W
6
G26
W
5
G27
W
6
G29
W
6
G30
W
4
G27
W
5
G26
WNW
3
G25
WNW
3
G23
WNW
2
G19
NW
2
G21
WNW
2
G20
WNW
4
G19
WNW
6
G18
WNW
7
G18
WNW
7
G16
WNW
8
G14
NW
6
G12
NW
4
G12
NNW
2
G12
NNW
2
G6
NNW
1
NW
0
G1
S
2
SSW
2
G3
SW
1
G2
S
2
SSW
1
SW
1
S
1
NNW
1
E
1
S
1
G2
SSE
1
G3
E
2
G3
ENE
3
G4
NE
3
G4
NNE
4
N
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
0%
1%
1%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
6%
6%
6%
6%
6%
6%
19%
19%
19%
19%
19%
19%
40%
40%
40%
40%
40%
40%
51%
51%
51%
51%
51%
51%
72%
72%
72%
72%
72%
72%
82%
82%
82%
82%
82%
82%
81%
81%
81%
81%
81%
81%
66%
66%
66%
66%
66%
66%
63%
63%
63%
63%
63%
63%
16%
16%
16%
16%
16%
16%
15%
15%
15%
15%
15%
15%
20%
20%
20%
20%
20%
CLOUDS
cover %
0%
clear
0%
6%
65%
0%
2%
4%
0%
0%
0%
0%
0%
0%
0%
0%
100%
0%
4%
2%
4%
26%
7%
6%
35%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
6%
45%
53%
100%
5%
10%
100%
11%
100%
100%
19%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
77%
96%
100%
100%
100%
100%
40%
28%
51%
67%
8%
8%
8%
49%
57%
7%
100%
17%
19%
28%
33%
28%
21%
PRESSURE
hPa · trend
930
930928929932932930930930927929930931929928927928929930931933
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
75
Temperature
Ideal
Wind
Moderate
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
05:50 AM
SUNSET
08:48 PM
14H 58M OF DAYLIGHT1H 49M REMAINING
MOON PHASE
First Quarter
62% illuminated

Station Location

39.5027, -79.3272
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-23 18:59 UTC
Site #03075850·USGS

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