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10/8/2024
WT Staff
 Drinking water comments, questions or concerns? Give us a call at 877-52-WATER (877-529-2837), or email us at info@watertoday.ca
October 8, 2024 updated 838 am PDT
Hurricane Milton evacuations ongoing in Florida
Tropical Weather Outlook
issued by NWS National Hurricane Center Miami FL
5 am PDT Tues Oct 08 2024
For the eastern North Pacific...east of 140 degrees west longitude:
Offshore of Southwestern Mexico (EP99):
Showers and thunderstorms associated with an area of low pressure located about 150 miles west of Manzanillo, Mexico, have changed little in organization since yesterday. Only a small increase in
organization could result in the formation of a tropical depression during the next day or so. By late Wednesday, upper-level winds are forecast to become more unfavorable, and further development is not expected. The system is forecast to move slowly north-northwestward to northwestward, roughly parallel to the coast of Mexico. Interests along the southwestern coast of Mexico should monitor the progress of this system. Regardless of development, the disturbance could
bring areas of heavy rain to portions of southwestern Mexico during the next couple of days.
Formation chance through 48 hours...high...70 percent.
Formation chance through 7 days...high...70 percent.
Forecaster Reinhart
From California Water Boards, October 4, 2024
Harmful algal blooms confirmed at Lake Crowley; public urged to avoid water activities
For Immediate Release: Contact: Blair Robertson – Public Information Officer October 4, 2024
SACRAMENTO – Tests have confirmed harmful algal blooms (HABs) at multiple locations in Mono County’s Lake Crowley, prompting the Lahontan Regional Water Quality Control Board to urge people and pets to stay out of the water.
The Lahontan Regional Water Board has a recreational “danger” advisory at two locations, the Marina and Hilton Creek Drainage, to alert lake users of the elevated risk.
Until the advisories are lifted, people visiting the lake should mind the following HAB
guidance:
Danger
- Stay out of the water until further notice, including watercraft.
- Do not let pets and other animals drink or go into the water or go near the scum.
- Stay away from scum, and cloudy or discolored water.
- Do not eat fish or shellfish from this water.
- Do not use this water for drinking or cooking. Boiling or filtering will not make the
water safe.
Lahontan Regional Water Board staff monitored Crowley Lake on Sept. 24 and noticed
visual signs of HABs near the South Landing area of the lake at both the Marina and the
Hilton Creek Drainage. Sample results confirmed that toxin levels were present at
dangerous levels at both locations.
Cyanobacteria, a group of organisms that form HABs, can produce potent toxins. Health
risks are associated with HABs, as they produce dermatoxins that can cause itching
skin and rashes, as well as gastrointestinal distress, headaches, agitation and
weakness, or abnormal breathing if HAB material is swallowed while swimming. Dogs
and children are most susceptible to exposure because of their smaller body size,
increased potential to swallow water while swimming and tendency to stay in the water
longer. If you suspect exposure, wash your children and dog immediately.
The bloom occurring in the lake appears suspended on the water’s surface. Bloom conditions can change rapidly, as the winds and waves move or concentrate the bloom into different regions of the lake. In some areas, the bloom may concentrate and form a film or scum on the water surface. The color of the water may also appear discolored as
bright or dark green and brown.
The California Water Boards will provide regular updates to inform the community when
postings are removed on the California HAB Reports Web Map.
The Water Boards recommend that people practice healthy water habits while enjoying the outdoors at your local lake, river or stream:
- Heed all instructions on posted advisories if present
- Avoid algae and scum in the water and on the shore.
- Keep an eye on children and pets.
- If you think a harmful algal bloom or toxic algal mats are present, do not let pets and
other animals go into or drink the water or eat scum/algal mats on the shore.
- Don’t drink the water or use it for cooking.
- Wash yourself, your family and your pets with clean water after water play.
- If you catch fish, throw away guts and clean fillets with tap water or bottled water
before cooking.
- Avoid eating shellfish if you think a harmful algal bloom is present.
Get medical treatment immediately if you think that you, your pet, or livestock has
gotten sick after going in the water. Be sure to alert the medical professional to the
possible contact with cyanobacteria. Also, make sure to contact the local county public
health department.
To report a bloom, do one of the following:
- Fill out the Bloom Report form on the HABs Portal.
- Email CyanoHAB.reports@waterboards.ca.gov.
- Call the HABs hotline: 1-844-729-6466 (toll free).
- Contact your County Public Health Office.
For more information about HABs, please visit the California Harmful Algal Blooms
Portal.
Streamflow Situation from the USGS network of streamflow gauges in California
North and central coastal watersheds are posting lower flows this week, contributing to the severe drought in Region 1 southwest Humboldt County. Below normal ratings continue through Central Valley east Shasta and west Lassen Counties. A large area of the Colorado River watershed remains below normal, impacting Lakeside, Imperial and San Bernardino Counties. Record low flow continues on New River near Westmoreland, Alamo River has recovered again overnight, now running 8th percentile.
See the brown tags on the map to the right for low flow levels in the 1st percentile range, some of the lowest levels recorded on this date in eighty-one years of monitoring New River near Westmoreland. No extreme high flows or flood events are recorded in the monitoring network as of this report.
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