USGS · 01650500

NORTHWEST BRANCH

USGS · 01650500LIVE

NORTHWEST BRANCH ANACOSTIA RIVER NR COLESVILLE, MD

SILVER SPRING, MD39.0655°N, -77.0294°W Updated 7 hr ago

FLOW RATE

4cfs

AIR TEMP

74°F

WIND

3mph NW

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

4cfs 58.5% vs avg

Optimal band: 3–3 cfs

PERIOD HIGH

48cfs

PERIOD LOW

1cfs

RUNNABLE

19%

last 30 day in band

Precipitation History

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Weather Conditions

WEATHER CONDITIONS

TODAY

95°

72°

MON

90°

74°

TUE

80°

71°

WED

73°

68°

THU

88°

68°

FRI

84°

72°

SAT

88°

68°

TIME

SUN

NOW

MON

TUE

WED

THU

FRI

TEMP

hourly forecast

73°

mild

73°

77°

81°

83°

86°

89°

92°

93°

95°

94°

95°

94°

85°

82°

81°

79°

76°

75°

74°

75°

76°

78°

80°

83°

86°

89°

90°

89°

90°

86°

77°

76°

74°

75°

74°

73°

72°

71°

72°

75°

77°

80°

79°

77°

76°

75°

74°

73°

71°

70°

69°

68°

70°

71°

72°

71°

72°

71°

70°

69°

68°

70°

74°

77°

78°

79°

82°

83°

85°

88°

84°

83°

81°

79°

78°

77°

76°

75°

74°

WIND

mph · gust · dir

2mph NE

G 5 mph

ENE

ESE

SSE

SSW

G12

G11

G10

G11

G13

G11

G17

G18

WNW

G14

G17

ENE

G18

G17

G14

ENE

G21

SSE

ESE

NNE

G11

ENE

G13

G10

ENE

G11

G12

G10

ENE

G10

ENE

G11

ENE

G12

ENE

G14

ENE

G15

ENE

G16

G17

ESE

G16

G15

ENE

G15

G14

G12

G11

G13

G12

G13

G12

G10

ENE

NNE

ENE

G14

G16

ESE

G16

ESE

G13

ESE

SSE

SSW

G10

SSE

G11

G17

SSE

G20

SSE

G23

G24

G22

SSW

G19

SSW

G16

PRECIP

chance %

19%

24%

31%

35%

42%

41%

35%

31%

24%

26%

15%

13%

12%

13%

16%

21%

70%

78%

56%

25%

54%

41%

13%

22%

21%

19%

18%

32%

19%

CLOUDS

cover %

98%

overcast

98%

84%

79%

100%

23%

100%

54%

100%

84%

38%

100%

93%

100%

75%

100%

90%

100%

50%

100%

74%

100%

99%

100%

99%

100%

36%

71%

90%

100%

98%

100%

41%

97%

100%

47%

58%

81%

97%

100%

96%

94%

PRESSURE

hPa · trend

1002

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Calm

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:48 AM

SUNSET

08:37 PM

14H 49M OF DAYLIGHT

MOON PHASE

Waning Gibbous

72% illuminated

Station Location

39.0655, -77.0294

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-07-05 00:00 UTC

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