9/26/2024
WT Staff
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September 26, 2024 updated 1047 am EDT
Showers for NYC
Streamflow Situation from the USGS network of streamflow gauges in New York
Overcast this morning with 50% chance of showers becoming thunderstorms later today in the southeast including New York City. River levels in the south-facing watersheds run normal to above normal Thursday, the northward flows trending lower and slower. Below normal ratings are becoming more common through the Black River watershed, St. Lawrence River watershed and Lake Champlain watershed. Central drainage basin continues below normal to much below normal through the Hudson River watersheds including a record low in the Lower Hudson tributary Rondout Creek. West flowing watersheds are variable, above normal to much below seasonal normal water levels with a 1st percentile low recorded again today on Seneca River near Baldwinsville. Check the map to the right for brown tags blue tags indicating 1st percentile low flows.
Moderate drought remains in Adirondacks of the Upper Hudson River watershed, including south Hamilton County, northeast Fulton and southwest Saratoga. Lake Ontario minor tributaries west section in Niagara, Orleans and west Monroe Counties remain in moderate drought along with a small area along Oswego River in central Oswego County. The west interior Finger Lakes region remains below normal, along with Black River, Upper Hudson and Lake Champlain watershed's Washington County. Niagara River - Lake Erie watershed, Allegheny River watershed have surface area rated below normal in Cattaraugus and Chautauqua Counties.
WT HAB Tracker from the satellite monitoring program of the NOAA National Centers for Coastal Ocean Science(NCCOS), Cyanobacteria Assessment Network (CyAN) and State sources where available
New York
Four hundred and thirty four HABs confirmed on the notifications board Thursday, down slightly from the season's daily high score achieved on Monday, September 23. Kellis Pond is seeing the first HAB of the season, along with Old Town Pond in Suffolk County. Finger Lakes continue to host the majority of these bluegreen colonies. The top three lakes, Seneca, Canandaigua and Skaneateles Lakes hold over 60% of the HABs today. The latest impacted water body list is available here.
The latest satellite image of Lake Champlain was captured September 24, a partially cloud obscured image captured at unknown surface wind speed. Baie Missisquoi shows dispersed open water HABs of low concentration, 100 thousand cells per ml or less. A previous image capture dated September 23 shows dispersed open water HABs around the Alburg-Swanton bridge and in the channel west of North Hero Island, also at the low concentration. The rest of the lake is cloud obscured.
See the NCCOS color image of Lake Champlain here.
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