Under Potential Heat Risks, Mariposa County and Madera County have locations that are high risk for much of the population, especially those who are heat sensitive and those without effective cooling today.
August 16, 2019 - The National Weather Service Hanford Office reports today will be nearly as hot as Thursday in the San Joaquin Valley and lower foothills.
In the San Joaquin Valley, high temperatures of 104 to 109 degrees can be expected today.
Temperatures this hot pose a high heat risk, especially for those with respiratory ailments, the elderly and those individuals that are not acclimated to hot weather.
If you’re going to be outdoors during the hottest time of the day (between 1 pm and 6 pm), avoid strenuous exercise, stay hydrated and wear light colored, loose fitting clothing.
Never leave pets or young children unattended in a car.
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
246 AM PDT Fri Aug 16 2019
Central Sierra Foothills-Southern Sierra Foothills-
Including the cities of Coarsegold, Oakhurst, Squaw Valley,
Auberry, North Fork, Mariposa, Springville, and Three Rivers
246 AM PDT Fri Aug 16 2019
...A HEAT ADVISORY IS IN EFFECT FROM 11 AM PDT THIS MORNING UNTIL
8 PM PDT THIS EVENING...
The National Weather Service in Hanford has issued a Heat
Advisory, which is in effect from 11 AM PDT this morning until 8
PM PDT this evening.
* TEMPERATURES...High temperatures of 98 to 103 degrees this
afternoon.
* TIMING...From 11 AM PDT this morning until 8 PM PDT this
evening.
* IMPACTS...Heat related illnesses, such as heat exhaustion and
heat stroke are possible. People most vulnerable to heat related
illnesses include those who spend a lot of time outdoors, those
who do not have air conditioning, young children, the elderly,
and those with chronic ailments.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Heat Advisory means that a period of hot temperatures is
expected. These hot temperatures will create a situation in which
heat illnesses are possible. Drink plenty of fluids, stay in an
air-conditioned room, and stay out of the sun.
Know the signs and symptoms of heat exhaustion and heat stroke.
Anyone overcome by heat should be moved to a cool and shaded
location. Heat stroke is an emergency, call 9 1 1.
Area Forecast Discussion National Weather Service Hanford CA 255 AM PDT Fri Aug 16 2019 .SYNOPSIS... One more day of excessive heat is expected in the San Joaquin Valley and West Side Hills today. Temperatures will trend downward this weekend. Seasonal temperatures are expected Monday and Tuesday. Widespread triple digit heat should return to the San Joaquin Valley and West Side Hills Wednesday. Dry weather will persist across Central California for the foreseeable future. && .DISCUSSION... A ridge of high pressure will remain over the Desert Southwest today. As a result, high temperatures this afternoon will be around ten degrees above normal for this time of year. In addition, high temperatures this afternoon in Fresno and Bakersfield should be within one to three degrees of the daily records for maximum temperatures ever measured in Fresno and Bakersfield on August 16th. The current record for maximum temperature ever observed in Fresno on August 16th is 110 degrees, set in 1920. The current record for maximum temperature ever observed in Bakersfield on August 16th is 109 degrees, initially established in 1906 and last observed in 1920. An Excessive Heat Warning is in effect for the San Joaquin Valley and West Side Hills today. A Heat Advisory is in effect for the Southern Sierra Nevada foothills today. An upper-level trough of low pressure will move southward through the Pacific Northwest tonight, before entering Northern California Saturday. High temperatures Saturday afternoon throughout Central California will be about five degrees above normal for this time of year. This trough of low pressure aloft should remain over Northern California Sunday through Tuesday, resulting in seasonable temperatures. An upper-level area of high pressure will strengthen over the Desert Southwest Wednesday. Widespread triple digit heat should return to the San Joaquin Valley and West Side Hills Wednesday. Dry weather will persist through at least the next seven days.Source: NWS
