USGS · 01650500

NORTHWEST BRANCH

USGS · 01650500LIVE

NORTHWEST BRANCH ANACOSTIA RIVER NR COLESVILLE, MD

MARYLAND39.0655°N, -77.0294°W Updated 1 hr ago

FLOW RATE

9.59cfs

GAUGE HT

1.59ft

AIR TEMP

75°F

WIND

3mph SW

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

9.59cfs 79.5% vs avg

Optimal band: 1–2 cfs

PERIOD HIGH

10.2cfs

PERIOD LOW

1.18cfs

RUNNABLE

97%

last 1 day in band

Gauge Height

1.59ft

Precipitation History

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Weather Conditions

WEATHER CONDITIONS

TODAY

96°

73°

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°

74°

77°

80°

83°

86°

89°

92°

94°

95°

96°

95°

94°

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°

WIND

mph · gust · dir

1mph N

G 7 mph

ENE

ESE

SSW

G12

G11

SSW

G13

G11

G17

G18

WNW

G14

G17

ENE

G18

G17

G14

ENE

G20

SSE

ESE

G10

NNE

G16

ENE

G16

ENE

G16

G14

G11

ENE

G10

G11

G10

ENE

G10

ENE

G11

ENE

G13

ENE

G13

ENE

G14

G15

G16

ESE

G16

G14

ENE

G12

G13

G12

G11

G10

ENE

NNE

ENE

ESE

G11

G12

G13

G16

ESE

G15

G13

SSE

G11

G10

SSW

G11

G12

G13

G14

G13

G10

SSE

SSW

PRECIP

chance %

22%

25%

34%

35%

42%

41%

34%

31%

24%

25%

14%

12%

13%

12%

10%

14%

16%

41%

70%

78%

56%

25%

54%

41%

13%

22%

21%

19%

18%

32%

19%

CLOUDS

cover %

57%

partly

57%

37%

13%

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%

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 04:45 UTC

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