New Hampshire · river
Upper Ammonoosuc River near Groveton
USGS monitoring location. Launch access and paddling suitability have not been verified.
Weather comparison · not a safety rating
Poor weather
Weather score out of 100
Weather only. This is a monitoring station, not a verified launch. Access, hazards and suitable flow are unknown.
Weather observation: Wed, 11 Nov 2026 04:45:00 GMT.
River observation: Wed, 11 Nov 2026 04:30:00 GMT.
Page checked: Wed, 11 Nov 2026 04:58:30 GMT. Readings older than one hour are not used for the current score.
Wind
11 mph
gusting to 28 mph
Air temp
43°F
23% chance of rain
River flow
171 cfs
low for this date
Weather outlook
Monday · 70
Tue
46
46°
Wed
37
42°
Thu
68
42°
Fri
56
37°
Sat
50
36°
Sun
67
38°
Mon
70
40°
Best
Compares forecast wind, air temperature and rain. Does not assess river flow, swell, currents, water temperature or launch access. All times are local to this location.
Wind, next 12 hours
mph| Hour | Wind (mph) | Gusts (mph) |
|---|---|---|
| 11p | 10 | 24 |
| 12a | 11 | 28 |
| 1a | 11 | 28 |
| 2a | 11 | 30 |
| 3a | 11 | 29 |
| 4a | 10 | 26 |
| 5a | 10 | 24 |
| 6a | 9 | 22 |
| 7a | 9 | 21 |
| 8a | 10 | 22 |
| 9a | 12 | 24 |
| 10a | 13 | 23 |
Is this flow normal for November 11?
Today's 171 cfs is 53% below the median for this date — which counts as low water here.
The median flow on this date is 362 cfs, across 85 years of USGS record at this gauge. Whether that is runnable depends on the stretch — this is context, not a recommendation.
Why this score
- Wind — 11 mph — moderate wind at the forecast location-13
- Gusts — Gusting to 28 mph — 17 mph over sustained-13
- Cold — 43°F air temperature — very cold weather-26
We don't have launch notes for this one
This page is built from the USGS gauge at this location, and uses available public readings. We haven't verified where to put in, what the hazards are, or whether this stretch is legal or sensible to paddle. We'd rather say that than invent it. The links below are where to find out.
We also don't have a verified safe-flow range here, so the Paddle Score reflects weather only. Judge the flow number against local knowledge, not against our score.
Do your own homework
We show you live conditions. For local knowledge — where to put in, what the hazards are, whether it's worth the drive — here's where paddlers actually talk about this water. We don't vet these sources; check the dates and judge for yourself.
- Paddler discussion on Reddit
Trip reports and local warnings, straight from the source
- Search American Whitewater
Rapid classifications and gauge-linked run descriptions
- Satellite view and access roads
Check parking, put-ins, and what the banks actually look like
- Video from this water
The fastest way to see the character of a run before you drive
- USGS gauge 01130000
Full hydrograph, historical flows, and station metadata