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E. Branch of Penobscot Below Grand Lake Matagamon — water level right now

Penobscot County, Maine · NWS gauge GLMM1
Loading the latest reading…
–
current stage (ft)
 
8.5
minor flood stage
 
9.6
record crest
set 2023-12-19
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flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

action · 7.5
minor · 8.5
Flood stageLevel (ft)What it means
Minor flood stage8.5low-lying roads and fields near the river start to flood
Action stage7.5water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
19.62023-12-19+1.1 above

Historic crests recorded at this gauge by the National Weather Service — the 12 highest on file.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

Seboeis River near Shin Pond 8 mi away · loading… Penobscot River above Grindstone 29 mi away · loading… Aroostook River at Masardis 34 mi away · loading… Wytopitlock Stream near Reed Plantation 42 mi away · loading… Meduxnekeag River above South Branch near Houlton 44 mi away · loading… Pearce Brook near Houlton 46 mi away · loading…

Gauge details

NWS gauge IDGLMM1
USGS site01029100
CountyPenobscot
StateMaine
NWS forecast officeCaribou
River forecast centerNortheast River Forecast Center
Coordinates46.134, -68.794
Time zoneEST5EDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about E. Branch of Penobscot Below Grand Lake Matagamon

Is E. Branch of Penobscot Below Grand Lake Matagamon flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 8.5 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for E. Branch of Penobscot Below Grand Lake Matagamon?

minor flood stage 8.5 ft, action stage 7.5 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at E. Branch of Penobscot Below Grand Lake Matagamon?

The highest crest on file at this gauge is 9.6 ft, reached on 2023-12-19 — that is 1.1 ft above minor flood stage. The full list of the highest crests is in the table on this page.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS Caribou and local emergency management.