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North Branch Potomac River near Cumberland

River flow & level · USGS gauge 01603000 · Maryland · drains 877 sq mi

507cfsNormal

Latest reading Oct 26, 12:15 PM · streamflow

The North Branch Potomac River at Cumberland is running 507 cfs, 149% of the median flow for October 26 (341 cfs, 97 years). Gage height is 2.69 ft, 14.3 ft below flood stage (17.0 ft). Flow is down 2% from 24 hours ago.

Flow 149% of normal, flow steady, calm wind — good fall fishing day (6/10), best window 7:43 AM–8:43 AM (moonset near sunrise).

vs normal for Oct 26149% of medianNormal · 63rd percentile · median 341 cfs
Gage height2.69 ft24 hours: −0.01 ft
Flood statusBelow flood stageAction 12 ft · Minor 17 ft · Moderate 21 ft · Major 23 ft · NWS CBEM2
Change, 24 hours−8 cfs7 days: −65 cfs
Same date last year297 cfs2025 daily mean
Air temp & weather now60°F · SunnyWind SSW 2 mph, gusts 6NWS forecast · see Weather & wind below
Sun today7:37 AM – 6:20 PMFirst light 7:09 AM · Last light 6:48 PM

Streamflow

cubic feet per second

ReadingNormal range for the date (25th–75th pct.)Median for the date

Gage height & flood stages

ft above gauge datum

Action (12.0 ft) is 9.3 ft above the latest reading, off this chartMinor (17.0 ft) is 14.3 ft above the latest reading, off this chartModerate (21.0 ft) is 18.3 ft above the latest reading, off this chartMajor (23.0 ft) is 20.3 ft above the latest reading, off this chart

Reading

North Branch Potomac River near Cumberland fishing report & conditions

updated Oct 26, 12:50 PM ET

Flow 149% of normal, flow steady, calm wind — good fall fishing day (6/10), best window 7:43 AM–8:43 AM (moonset near sunrise).

Best fishing times today

Today is a good fishing day (solunar + local conditions)

6/10

Full moon · 99% lit · New moon Mon, Nov 9 · Sunrise 7:37 AM · Sunset 6:20 PM

Major fishing times

  • Moon underfoot12:21 PM–2:21 PM

Minor fishing times

  • Moonset7:43 AM–8:43 AM
    Sunrise
  • Moonrise5:51 PM–6:51 PM
    Sunset
Fishing times for the next 7 days
TodayOct 266/10GoodMajor 12:21 PM–2:21 PM
Minor 7:43 AM–8:43 AM · 5:51 PM–6:51 PM
Calm wind 0–6 mph
TueOct 274/10FairMajor 12:50 AM–2:50 AM · 1:20 PM–3:20 PM
Minor 9:01 AM–10:01 AM · 6:32 PM–7:32 PM
Calm wind 0–2 mph
WedOct 282/10PoorMajor 1:50 AM–3:50 AM · 2:22 PM–4:22 PM
Minor 10:17 AM–11:17 AM · 7:24 PM–8:24 PM
Calm wind 0–4 mph
ThuOct 294/10FairMajor 2:54 AM–4:54 AM · 3:27 PM–5:27 PM
Minor 11:28 AM–12:28 PM · 8:26 PM–9:26 PM
Calm wind 0–1 mph
FriOct 303/10PoorMajor 3:59 AM–5:59 AM · 4:31 PM–6:31 PM
Minor 12:27 PM–1:27 PM · 9:38 PM–10:38 PM
Calm wind 0–2 mph
SatOct 314/10FairMajor 5:01 AM–7:01 AM · 5:31 PM–7:31 PM
Minor 1:16 PM–2:16 PM · 10:52 PM–11:52 PM
Calm wind 0–1 mph
SunNov 14/10FairMajor 4:59 AM–6:59 AM · 5:26 PM–7:26 PM
Minor 12:54 PM–1:54 PM · 11:07 PM–12:07 AM
Calm wind 0–2 mph
How this rating works

Solunar theory says fish feed more when the moon is overhead or underfoot (major periods, about 2 hours) and around moonrise and moonset (minor periods, about 1 hour). On a lake or river there is no tide, so instead of tide changes we score the local conditions anglers watch: the barometric pressure trend, the wind, whether the river is steady, and the water temperature where it is measured.

Baseevery day starts at 11
Sunrise / sunseta period overlaps sunrise or sunset ±1 h: major +2, minor +1 (max 3) (Moonset × sunrise +1; Moonrise × sunset +1)2
Moon phasewithin 2 days of a new or full moon +2, within 4 days +1 (today: 0.5 days)2
Local conditionspressure 6 AM→6 PM: falling +2, steady or slowly rising +1, rising fast 0 · daytime wind 4–15 mph +1, over 20 mph (or gusts over 30) −1 · flow within ±15% in 24 h +1, rising over 25% −1 · water 55–75°F +1, below 45°F or above 85°F −1 (0 to 4 in total)
  • Pressure: No NWS pressure forecast for this day +0
  • Wind: Calm 0–6 mph, gusts 9 +0
  • Flow: Flow steady (-2% in 24 h) +1
1
Today6, rounded6/10

1–3 poor · 4–5 fair · 6–7 good · 8–10 excellent. Pressure and wind are the NOAA National Weather Service hourly forecast for this spot; the level/flow trend is the latest 24 hours of readings on this page. Days 2–7 score sun, moon, forecast pressure and forecast wind only (level and water temperature aren’t forecast). Solunar times are a rule of thumb, not a guarantee.

Solunar periods calculated for 39.62, -78.77 (moon times from astronomical equations, North Branch Potomac River near Cumberland local time).

Weather & wind at North Branch Potomac River near Cumberland

air temperature, not water
Air temp60°FNWS forecast for this hour
Wind2 mphfrom the SSW · NWS forecast this hour
Gusts6 mphpeak gusts this hour

3-day forecast

NOAA National Weather Service forecast for 39.622, -78.773 (grid LWX), issued Oct 26, 10:54 AM local time. High / low are air temperatures; water temperature is in the fishing section above. The “Air temp & weather” tile at the top refreshes live.

Flood stages

NOAA NWS gauge CBEM2

October 26 in history

97 years of flow records

Last 10 days

DateMean flow (cfs)Change
Mon Oct 26 (today)507-2%
Sun Oct 25515-1%
Sat Oct 24518-1%
Fri Oct 23523-2%
Thu Oct 22531-2%
Wed Oct 21540-1%
Tue Oct 20546-4%
Mon Oct 19570-3%
Sun Oct 18590-4%
Sat Oct 17617-5%

Daily mean of all readings that day; today is the average so far.

Nearby lakes & rivers

About this data

Gauge
USGS 01603000 — North Branch Potomac River Near Cumberland, Md
Location
39.6218, -78.7734 · Maryland
Drainage area
877 sq mi
Measures
Streamflow (discharge), cubic feet per second
Daily statistics
1930–2026 (approved daily values)
Latest reading
Oct 26, 12:15 PM local time (provisional)
Page built
Oct 26, 2026 12:50 PM ET
Flood stages
NWS gauge CBEM2 — National Water Prediction Service

Source: U.S. Geological Survey Water Data for the Nation (USGS monitoring location page). Readings every 15–60 minutes; the newest values are provisional. Percentiles compare today’s reading with every past year’s daily mean for the same calendar date. Weather: NOAA National Weather Service.