Great site for Mid Atlantic river levels

Monacacy Canoe Club provides many great resources to the public beyond its members.  It's river gauge page and tools are great for all sorts of river users and explorers.

See the original page at http://www.monocacycanoe.org/gauges.html

River Levels and Weather both Current and Predicted

National Weather Service (NWS) Middle Atlantic River Forecast Center..Main Graphic Data Page (Current & Forecast). NWS Middle Atlantic River Forecast Center. American Whitewater, gauges listed by state/gauge. NWS US Quantitative Precipitation Forecasts (US Rain Predictions) NWS Rain Data. Where, when & how much. Chris Skalka's "RIVERBOT" River Gauge Retrieval System   Maryland Maryland Real Time Gauge Readings..(Potomac Basin, Monongahela Basin, Yough.) Upper Yough Whitewater Schedule Maryland River Levels from NOAA Army Corps of Engineers Bloomington Information USACE Baltimore (Potomac, Susquehanna)   Pennsylvania Pennsylvania Real Time Gauge Readings. "Canoeable Streams in Western Pennsylvania" Clickable Guide Book by Ed Donley. Pennsylvania River Levels from NOAA USACE Pittsburgh (Casselman, Yough, Big Sandy, Dry fork, etc.) Lehigh Information National Weather Service Forecast Office - Pittsburgh, PA   Virginia Virginia Real Time Gauge Readings

Monitoring and publishing streamflow and flooding using NOAA gauges

You can go to the NOAA Weather Service Rivers page, then zoom in to look for a specific gauge:




Not all gauges provide predictive data, which require models built on anticipated precipitation and past precipitation impact models, integrated with upstream gauge data if available. You'll typically see a full week, including 5 days of past streamflow and gauge height, and a prediction for the next two days.

The images on these pages are dynamic, so if you visit this blog post later, you'll see the data in the image above is changing.  In order to capture an image of a flood event, you'll want to right-click the image and copy it or save it.

Cloudiest and Rainiest September?

from the Washington Post's Capital Weather Gang

One of D.C.'s cloudiest and rainiest Septembers keeps getting worse

2018 is in the running for the wettest year on record

Washington has had 20 more inches of rain than normal since April and over five inches more than normal in September. (National Weather Service)

By Jason Samenow and Ian Livingston

September 24

We have all kinds of stats that confirm what is obvious to Washingtonians: This month is one of the cloudiest and wettest Septembers the District has ever seen. The month is doing more than its fair share to put 2018 in the running for Washington’s wettest year on record.

You’re forgiven if you’re fed up with it.

“I would pay so much money for it to never, ever rain again,” tweeted Carly Cloud.

“This is awful!” added Lisa Dunn on Twitter.

September by the numbers

Through Sunday, Washington had posted 8.25 inches of rain for the month, which is 5.44 inches above normal and ranks fifth-most on record (through Sept. 23).

Rain falling early this week could easily push that number over nine or even 10 inches.

Washington’s rainiest September on record occurred in 1934, when an astonishing 17.45 inches fell. That record is safe, and the second-place total of 12.36 inches from 1975 probably is, too. But a top-five finish above 8.84 inches (from 2011) seems like a good bet this year. 

The rain this month has been both persistent and, at times, heavy. We’ve registered at least a trace of rain on 17 of 24 days and measurable amounts on 12 days. At least an inch has fallen three times (Sept. 7, 9 and 17).

Even on days when it hasn’t rained, stuck weather systems have frequently cast a bleak shadow over

Leaf color changes

As your expertise grows, and others' awareness of your career grows, leaf color explanation will be an annual event (I'm betting it is already for some of you).

Like temperature and sunlight, soil moisture also plays a role in how the leaves will appear this fall.  As day length gets shorter after the equinox (September 22), cells in each leaf create a layer that prevents new chlorophyll (it's called the abscission layer).   Severe drought causes the abscission layer to form earlier and leaves often dry up or drop before they change color. Heavy rain and wind can cause the leaves to fall before they fully develop color.

The best color scenario is a growing season with plenty of moisture followed by a dry, cool and sunny autumn with warm days and cool but frost-free nights.   

Drone footage of North Branch flooding

My wife and I run a research farm along the South Branch of the Potomac between Green Spring, WV and Levels, WV, just upstream of where the mainstem of the Potomac begins (confluence of the North Branch and the South Branch) near Oldtown Maryland.

A company called Ripple Effect Drone Services began producing videos of the Potomac river this year that captured the impact of the flooding and revealed the flood plains.

I expect you can see this without having a Facebook account:

https://www.facebook.com/pg/rippleeffectdrone/videos/