USGS · 01646305

DEAD RUN

USGS · 01646305LIVE

DEAD RUN AT WHANN AVENUE NEAR MCLEAN, VA

FAIRFAX COUNTY, VA38.9598°N, -77.1757°W Updated 3 hr ago

FLOW RATE

0cfs

GAUGE HT

0.95ft

WATER TEMP

74°F

AIR TEMP

72°F

WIND

3mph SSE

FISH INDEX

88SCORE / 100

EPIC · 5 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

0cfs 49.6% vs avg

Optimal band: 1–1 cfs

PERIOD HIGH

35cfs

PERIOD LOW

1cfs

RUNNABLE

74%

last 1 year in band

Gauge Height

0.95ft

Water Temperature

74.3°F

Precipitation History

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Weather Conditions

WEATHER CONDITIONS

TODAY

83°

73°

MON

88°

66°

TUE

92°

66°

WED

100°

75°

THU

98°

79°

FRI

90°

70°

SAT

94°

74°

TIME

MON

NOW

TUE

WED

THU

FRI

TEMP

hourly forecast

67°

mild

67°

66°

68°

73°

77°

79°

82°

85°

86°

87°

88°

87°

86°

83°

80°

77°

75°

73°

71°

70°

69°

68°

67°

66°

68°

73°

78°

82°

86°

88°

90°

91°

92°

90°

87°

84°

82°

81°

79°

77°

76°

75°

77°

80°

84°

88°

91°

94°

96°

98°

99°

100°

98°

93°

90°

88°

87°

86°

84°

83°

82°

81°

79°

80°

82°

85°

88°

91°

92°

94°

96°

98°

95°

94°

93°

90°

86°

84°

82°

80°

77°

76°

75°

73°

72°

71°

70°

72°

77°

81°

83°

86°

87°

89°

90°

88°

86°

83°

82°

80°

WIND

mph · gust · dir

2mph NE

G 4 mph

NNE

ESE

G10

G11

G10

SSE

ESE

G12

G10

SSE

G11

SSE

G10

G12

SSE

ENE

ESE

NNE

NNW

WNW

WSW

SSW

G10

G13

SSW

G15

G16

G18

G12

WSW

WNW

G10

G14

G16

WNW

G16

WNW

G14

WNW

G12

WNW

G11

WNW

G10

WNW

G11

WSW

WNW

G11

WNW

G14

G13

WNW

G15

G10

G11

G14

G15

G16

G17

WNW

G18

G17

NNW

G19

G22

G26

NNW

G28

NNW

G28

NNW

G23

NNW

G22

NNW

G23

NNW

G19

NNW

G16

NNW

G15

NNW

G15

G14

G13

G12

G11

G10

NNW

G11

G10

NNW

ENE

PRECIP

chance %

CLOUDS

cover %

clear

30%

34%

50%

12%

20%

56%

61%

12%

15%

12%

13%

15%

63%

55%

15%

85%

100%

57%

100%

82%

100%

64%

100%

90%

100%

14%

100%

95%

100%

96%

10%

68%

100%

59%

10%

28%

62%

86%

88%

79%

PRESSURE

hPa · trend

1015

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Calm

Pressure

Stable

Moon Phase

Peak Activity

DAYLIGHT

SUNRISE

05:53 AM

SUNSET

08:35 PM

14H 42M OF DAYLIGHT

MOON PHASE

New Moon

3% illuminated

PEAK ACTIVITY

Station Location

38.9598, -77.1757

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DATA · USGS · NOAA · NWSUPDATED 2026-07-13 00:00 UTC

Site #01646305·USGS

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