USGS · 01598500

NORTH BRANCH

USGS · 01598500LIVE

NORTH BRANCH POTOMAC RIVER AT LUKE, MD

LUKE, MD39.4790°N, -79.0638°W Updated 19 hr ago

FLOW RATE

389cfs

AIR TEMP

96°F

WIND

8mph WNW

FISH INDEX

56SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

389cfs 29.1% vs avg

Optimal band: 333–451 cfs

PERIOD HIGH

417cfs

PERIOD LOW

388cfs

RUNNABLE

100%

last 7 day in band

Precipitation History

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Weather Conditions

WEATHER CONDITIONS

TODAY

97°

74°

SAT

100°

75°

SUN

95°

70°

MON

90°

69°

TUE

91°

67°

WED

85°

66°

THU

81°

68°

TIME

FRI

NOW

SAT

SUN

MON

TUE

WED

TEMP

hourly forecast

92°

mild

92°

88°

85°

83°

82°

81°

79°

78°

77°

79°

83°

87°

91°

95°

97°

98°

99°

100°

98°

91°

80°

81°

75°

76°

74°

73°

72°

73°

74°

78°

82°

87°

91°

94°

95°

75°

73°

75°

71°

72°

71°

70°

69°

70°

69°

71°

76°

79°

85°

88°

89°

90°

88°

84°

80°

77°

71°

70°

69°

68°

67°

69°

73°

78°

82°

86°

87°

89°

91°

89°

81°

78°

74°

72°

69°

68°

67°

66°

67°

69°

72°

75°

78°

82°

84°

WIND

mph · gust · dir

6mph WNW

G 10 mph

G10

WNW

WSW

SSW

WSW

G13

WSW

G15

WSW

G16

WSW

G18

WSW

G20

WSW

G19

WSW

G28

SSE

G11

G27

WSW

G21

WNW

G11

WSW

G33

G20

ESE

NNW

ESE

NNE

G26

G23

ESE

G22

NNW

G12

SSW

SSE

ENE

ESE

ENE

ESE

SSE

WSW

WNW

WSW

WNW

G13

WNW

G12

WNW

G12

WNW

G11

WNW

G10

G15

G17

WNW

G17

G18

NNE

ENE

ESE

PRECIP

chance %

12%

17%

18%

17%

27%

21%

13%

10%

21%

82%

68%

29%

37%

82%

52%

19%

33%

52%

33%

13%

18%

CLOUDS

cover %

clear

66%

23%

13%

100%

99%

100%

99%

100%

79%

57%

59%

100%

95%

83%

100%

72%

99%

15%

36%

100%

54%

82%

100%

12%

66%

87%

100%

98%

84%

66%

52%

PRESSURE

hPa · trend

981

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Too Hot

Wind

Light

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

05:54 AM

SUNSET

08:47 PM

14H 53M OF DAYLIGHT1H 4M REMAINING

MOON PHASE

Waning Gibbous

85% illuminated

Station Location

39.4790, -79.0638

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 19:43 UTC

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