Mayfair, CA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Mayfair, CA

June 24, 2024 5:52 AM PDT (12:52 UTC) Change Location
Sunrise 5:40 AM   Sunset 8:23 PM
Moonrise 11:06 PM   Moonset 8:14 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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7 Day Forecast for Marine Location Near Mayfair, CA
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Area Discussion for - San Joaquin Valley/Hanford, CA
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FXUS66 KHNX 241000 AFDHNX

Area Forecast Discussion National Weather Service Hanford CA 300 AM PDT Mon Jun 24 2024


KEY MESSAGES
1. Temperatures will be around 10 to 15 degrees above average Today with widespread triple digit highs across the lower elevations. A Heat Advisory is in effect through Tuesday morning.

2. There is a 40 to 70 percent probability of high temperatures of at least 105 degrees or above across most of the San Joaquin Valley this afternoon.

3. Above average heat will continue this week, with 100 degree heat persisting for many locations through Wednesday.

4. There is a 10 to 20 percent probability for thunderstorms This afternoon and Tuesday afternoon along the Sierra Nevada crest from Yosemite National Park to Kings Canyon and Sequoia National Park.

DISCUSSION
The Heat-Wave continues as triple digits and new record highs were observed on Sunday. Merced reached 108 degrees, which broke the old record of 107 degrees last set in 1939. The ridge of high pressure responsible for the weekend heat remains anchored over the South as the Heat-Wave will continue for at least one more day. The position of the ridge also allowed remnant moisture from Tropical Cyclone Alberto to surge northwest and into a large portion of the district. The increase in moisture allowed for afternoon convective development as isolated showers and thunderstorms popped-up before sunset. With little change expected today, will see heat and afternoon convection occur one more time. The development of a disturbance moving across the Pacific Northwest around the mid-week period will bring an end to the heat, but will increase the threat of thunderstorms across the area. The remainder of the week will see a cooling trend before warming begins early next week.

High-Res Short-range Ensemble Probability of Exceedance (PoE)
places a 40 to 70 percent chance of reaching 105 degrees across the San Joaquin Valley today. These percentages allow for higher confidence in maintaining the Heat Advisory today. In addition, ensemble mean instability does show enough energy to fire-off a slight chance of showers and thunderstorms (10-20 percent).
Therefore, a repeat of Sunday will be observed this Monday. The only uncertainty will be the amount of cloud cover which can hinder afternoon heating. Yet, will allow the heat-wave to continue for one more day.

Uncertainty in the heat exist on Tuesday as a disturbance pushes into the Pacific Northwest on Tuesday and Wednesday.
High-Res Short-range ensemble and long-range ensembles showing the introduction of the short-wave trof moving ashore close to the mid-week period. While ensemble do drop the PoE of reaching 105, then also have 50-70 percent PoE of reaching 100 degrees.
Therefore, while still hot, will re-evaluate the continuation of the Heat Advisory later today. However, confidence in convective activity is still high as stronger thunderstorm development will occur across the Sierra Nevada and locations eastward.

While the initial onset of disturbance’s passage will occur on Tuesday and Wednesday, Central California will feel the full effect of the disturbance by Thursday. Ensemble Cluster Analysis is showing a strong signal toward having the disturbance cross the region between Thursday and Friday. As the disturbance moves through, more significant cooling and strong winds will develop.
Messaging has started on windy conditions on Thursday as well as having temperature return to near normal conditions. Friday and the weekend will see a slow rise in temperatures as the lower elevations see triple digits toward the end of next weekend.

AVIATION
A 10-20 percent chance of thunderstorm development from 20Z today through 02Z Tuesday across the Sierra Nevada and Kern Mountains. VFR conditions will prevail across the Central CA interior for the next 24 hours.

AIR QUALITY ISSUES
None.

CERTAINTY

The level of certainty for days 1 and 2 is high.
The level of certainty for days 3 through 7 is medium.

Certainty levels include low
medium
and high. Please visit www.weather.gov/hnx/certainty.html for additional information and/or to provide feedback.

HNX WATCHES/WARNINGS/ADVISORIES
Heat Advisory until 11 AM PDT Tuesday for CAZ300>317-319-321- 332.




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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KFCH FRESNO CHANDLER EXECUTIVE,CA 3 sm17 minWSW 0310 smA Few Clouds73°F54°F50%29.88
KFAT FRESNO YOSEMITE INTL,CA 4 sm59 minWNW 0410 smPartly Cloudy77°F54°F44%29.86
KMAE MADERA MUNI,CA 24 sm59 mincalm10 smClear72°F54°F53%29.86
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San Joaquin Valley, CA,




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