Vermont is becoming warmer and wetter due to climate change. Specifically, the Vermont

Climate Assessment 2021 notes that both summer and spring precipitation have increased in

the Green Mountain State. The Assessment cautions that “[t]his spring precipitation . . . can

make farm operations difficult.” Read...

In sun and rain, heat and cold, monitors collectively filed over 2,700 reports during the 2021 season. Read...

Most monitors reported generally safe conditions during this 19th week of the monitoring season but blooms were also witnessed at select locations. Read...

While color is fading on the hillsides, it unfortunately is still showing up in the water. October 20 was a particularly busy day for cyanobacteria sightings with blooms reported at a scattering of locations up and down Lake Champlain. Scroll through this email to view pictures of the conditions witnessed at Arnold Bay, Burlington beaches, Island sites, St. Albans Bay, and Lake Memphremagog during this 18th week of cyanobacteria monitoring. You’ll also find some visuals and details about duckweed, water samples rimmed with cyanobacteria, and resources and links to help you recognize, avoid, and report cyanobacteria. Read...

Unfortunately, this was another big week for blooms—with reports of cyanobacteria coming in from all sections of Lake Champlain except Malletts Bay, Missisquoi Bay, and the South Lake. Blooms were also reported from Clyde Pond, Lake Carmi, Lake Iroquois, Lake Memphremagog, and Shelburne Pond. We have fewer monitors watching the water at this time of year but blooms can still show up as evidenced by the reports and photos compiled from this week. Please use the resources and links in this email to learn how to recognize, avoid, and report cyanobacteria. Read...

Unfortunately, this was a big week for blooms—reports of cyanobacteria were chronicled at all Lake Champlain sections except the South Lake and Malletts Bay. Blooms expanded in many areas of Lake Memphremagog and were reported on Lake Carmi and Lake Iroquois. You can get a sense of the impact of a bloom by watching this video taken on 10/6/21 by Missisquoi National Wildlife Refuge Manager Ken Sturm. Ken and his team witnessed an extensive swath of dense cyanobacteria in Missisquoi Bay during a 20-minute boat ride from the east delta all the way around to Long Marsh Bay. Read...

Clear water dominated on the cyanobacteria tracker during this first full week of fall and the 15th week of the cyanobacteria monitoring program. Most monitors who are still able to report recorded safe conditions, great for late-season recreation. Cyanobacteria was reported at one site each in Lake Champlain’s Main Lake Central and Main Lake South sections and several times during the week at Lake Carmi. Read...

Fewer reports are flowing in as we move into fall, park staff leave posts, and seasonal residents close up camps. However, late season blooms are not uncommon so please keep checking conditions whenever you recreate in or around water. Read...

Although generally safe conditions dominated the cyanobacteria tracker again this week, we received reports of cyanobacteria from all Lake Champlain regions except the South Lake and Malletts Bay. Monitors also logged in bloom reports for some sites on Lake Carmi and Lake Memphremagog. Read...

Generally safe conditions prevailed at most locations again this week but cyanobacteria was reported at Lake Champlain’s Main Lake Central, Main Lake South, Missisquoi Bay, St. Albans Bay, and South Lake and at Lake Carmi and Lake Memphremagog. Read...

Windy, cooler weather helped improve water quality conditions during this eleventh week of monitoring. While generally safe conditions prevailed at most locations, cyanobacteria was reported at Lake Champlain’s Inland Sea, Missisquoi Bay, and St. Albans Bay as well as Lake Carmi and Lake Memphremagog. Read...

Cyanobacteria Monitors filed over 240 reports this past week as blooms popped up or persisted in numerous locations on Lake Champlain and several inland waterbodies. Lake Champlain’s Inland Sea, Main Lake Central, Main Lake South, Missisquoi Bay, South Lake, and St. Albans Bay all experienced blooms as did Chittenden Reservoir, Lake Carmi, Lake Iroquois, Lake Memphremagog, and Shelburne Pond. Read...

Happy Friday! Lots of green dots populated the cyanobacteria tracker this week and reports of clear water, non-filamentous green algae, and iron bacteria dominated over cyanobacteria in most areas. However, we did have cyanobacteria bloom reports from Lake Carmi and Lake Morey as well as Lake Champlain’s Inland Sea and low and high alert conditions at several St. Albans Bay sites as of today (8/20/21). Read...

Cyanobacteria monitors kept us busy again this week with 136 Lake Champlain reports and 43 from inland waterways. Blooms occurred in the Lake Champlain’s Inland Sea, Main Lake North, Malletts Bay, and St. Albans Bay as well as Indian Brook Reservoir and Lake Carmi as of this writing. Read...

We had many clear water reports early in the week but conditions changed in some areas as the temperatures rose and the air stilled later in the week. A bloom took off in St. Albans Bay, and alert conditions were witnessed elsewhere on Lake Champlain, Lake Carmi, and Lake Memphremagog. Read...

Happily water conditions improved significantly this week! Roughly 85% of the Lake Champlain reports and 94% of inland waterway reports showed generally safe conditions. Read...

Another busy week of monitoring with variable conditions up and down Lake Champlain. While most monitors reported generally safe conditions at Lake Champlain and inland waterway monitoring sites, low and high alert blooms were in evidence too. Lake Champlain’s St. Albans Bay, Inland Sea, Malletts Bay, Main Lake North, Main Lake Central, and Main Lake South, along with Indian Brook Reservoir and Lake Carmi, all experienced cyanobacteria blooms. Read...

Lake Champlain Committee (LCC) and community monitors filed a total of 246 reports this week as blooms showed up in a host of Lake Champlain shoreline and inland lake locations. Escalating temperatures spurred cyanobacteria growth that closed beaches at several lakeshore communities. Read...

Although generally safe conditions still dominate on the cyanobacteria datatracker, blooms showed up in several sections of Lake Champlain and Lake Memphremagog this week. Read...

While we received some reports of low alert cyanobacteria conditions on Lake Champlain and Lake Carmi, the majority of monitors observed generally safe conditions during this second week of the 2021 monitoring season. The cyanobacteria datatracker is populated with lots of green dots again this week. Yay! Read...

Monitoring began this week and will run through early fall. This week’s report covers conditions from Sunday, June 20 through early-afternoon on Friday June 25. The vast majority of reports we’ve received to date indicate generally safe conditions. Yay! Read...

Cyanobacteria blooms: Why do they happen, what are the risks, and what can we do?

Cyanobacteria blooms have received increasing attention in recent years, as a result of

particularly strong blooms in some areas. As research into blooms continues, we learn

more about what things make cyanobacteria blooms more likely, what dangers blooms

can pose to humans and other animals, and what the future might hold.

Read...

We weren’t sure how many people would turn out to monitor during a pandemic that required wearing a mask at public sites and quarantining for two weeks if traveling across state lines. But turn out they did! More than 160 community members signed up to check conditions at over 150 Lake Champlain and inland waterway locations during the 2020 season. They included returning veterans, first-timers, seasonal and year-round residents, couples, families, students, and friend groups. They took on more rigorous protocols, showed up virtually for training sessions via Zoom, and faithfully filed weekly reports. Read...

We send heartfelt thanks to Angela Shambaugh, our longstanding cyanobacteria monitoring program colleague who retired in October from the Vermont Department of Environmental Conservation (VT DEC). Angela has been a key partner in the monitoring program since its inception in 2003. In the early years she assisted in lab analysis, cyanobacteria assessments, water sampling, and community outreach while working at the University of Vermont. Read...

While the cyanobacteria tracker map was dominated by green dots last week, too many red dots evidencing blooms are showing as we head into Labor Day weekend. While good conditions were observed at Lake Champlain’s Malletts Bay, Main Lake South, and South Lake and at numerous inland waterways, cyanobacteria blooms showed up in Missisquoi Bay, St. Albans Bay, the Inland Sea, Main Lake North and Main Lake Central on Lake Champlain as well as at Lake Carmi, Lake Morey and Shelburne Pond. Blooms can pop up or persist well into the fall so please continue to check conditions carefully whenever recreating near waterways. Read...

Monitors filed 151 reports this week from Lake Champlain and inland lake sites. The cyanobacteria tracker map shows lots of green dots this week for generally safe conditions. However, blooms are still present in some areas of Lake Champlain and inland lakes. Read...

It’s been a tumultuous week with hot weather, intense rains that flushed nutrients and partially treated wastewater to Lake Champlain, and some high winds that knocked out power. In the midst of it all cyanobacteria monitors collectively filed 212 reports from Saturday August 8 through 1:30 p.m. on Friday August 14! Read...

The Lake Champlain Committee (LCC) and partners received 186 monitor reports last week from August 1 through 4:00 p.m. Friday August 7, 2020. Good conditions were observed in Lake Champlain’s Missisquoi Bay, Malletts Bay and the South Lake while blooms were reported for areas of St. Albans Bay, the Inland Sea, Main Lake North, Main Lake Central, and Main Lake South. Mixed conditions continued in Lake Carmi. Read...

The Lake Champlain Committee (LCC) and partners received 154 monitor reports this past week from Saturday July 25 through 1:45 p.m. Friday July 31. Good conditions were observed in Lake Champlain’s Missisquoi Bay, Main Lake North, Malletts Bay and the South Lake while blooms were reported for areas of St. Albans Bay, the Inland Sea, Main Lake Central, and Main Lake South. Mixed conditions continued in Lake Carmi this week and Lake Raponda also experienced a low alert. Read...

We received 183 monitoring reports last week through Lake Champlain Committee (LCC) Cyanobacteria Monitoring Program from Saturday July 18 through mid-afternoon Friday July 24. Due to the high volume of reports and some technical issues we weren’t able to send you the compilation until today. Read...