Reservoir Report

Afterbay Reservoir At Dam Nr Mcgehees Mill reservoir

North-Carolina, USA USGS
Today high
--
Tonight low
--
Current storage
370ft
% of normal
-2%
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Right now · current storage
Afterbay Reservoir At Dam Nr Mcgehees Mill
USGS · 0207730290
370 ft
As of 2026-05-11
Seasonal avg
379
Record max
386
24h change
0.0%
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Afterbay Reservoir At Dam Nr Mcgehees Mill -- None reservoir
Afterbay Reservoir At Dam Nr Mcgehees Mill None
About this reservoir

Afterbay Reservoir At Dam Nr Mcgehees Mill

The Afterbay Reservoir, located at Dam Nr. McGehees Mill in North Carolina, was constructed in 1940 as a part of the Yadkin River Hydroelectric Project. It is a small reservoir that serves as a holding pond for water that is released from the Tillery Reservoir, before being used to generate hydroelectric power. The reservoir has a storage capacity of 2,900 acre-feet and receives water from the river and from snowmelt. The Yadkin River is the primary surface flow provider for the reservoir, while snowpack from the surrounding Blue Ridge Mountains also contributes to the water supply. The reservoir is primarily used for power generation, but it also provides recreational opportunities such as fishing and boating. Agricultural use of the water is limited due to its small size.

StateNone
OperatorUSGS
Site ID0207730290
Percent of normal-2%
Last updated2026-05-11
Records since2007
Storage trends

Daily levels at Afterbay Reservoir At Dam Nr Mcgehees Mill

Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.

Gage height, ft

ft · code 00065

Detailed forecast

Plan around the weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Afterbay Reservoir At Dam Nr Mcgehees Mill -- inflows here typically show up in storage 24-72 hours later.

Track Afterbay Reservoir At Dam Nr Mcgehees Mill in the Snoflo app

Save this reservoir as a favorite and set push alerts when storage crosses a threshold (e.g. "alert me at 80% of normal").

FAQ

About Afterbay Reservoir At Dam Nr Mcgehees Mill

Where does the data for Afterbay Reservoir At Dam Nr Mcgehees Mill come from?

Daily storage, pool elevation, and release rates are sourced from USGS, USBR, and USACE monitoring stations. Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.

How often is the report updated?

Storage observations are updated daily by the operating agency. The 15-day weather forecast refreshes throughout the day. Snoflo caches and renders the most recent observation -- check the "as of" timestamp on the storage card.

What does the Hazard hazard rating mean?

The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.

What's "% of normal"?

The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).

Can I get alerts when storage crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.

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Other water bodies near here

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Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.

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