Monday, July 28, 2014 07:34 AM
The dog days of summer continues with hot temperatures, along with monsoonal moisture over much of California. The surge of monsoonal moisture brought some widely scattered showers and thundershowers to Northern California on Sunday, but only scattered mid and high level clouds to Magalia.
The high temperature at this weather station reached 95° after a morning low of 71°. Sunday was the historical hottest day of the year, with an historic average for that day of 92°. Moderate dew point temperatures made for a somewhat muggy day. There was a peak wind gust at this location of 7 mph.
There are clouds from Southern to Central California, and like yesterday morning, some showers and thundershowers over and offshore of Southern California. This moisture is being enhanced by a small area of circulation seen on water vapor images which moved out of Baja California and is drifting north. The center of the circulation is currently near the southern tip of California and should continue to lift northward through interior California and be near Lake Tahoe tonight.
This morning is seeing mostly clear skies over Magalia except for a few scattered high thin clouds. Much of the clouds we are seeing this morning over Magalia are debris clouds from yesterday's thunderstorms over the southern Sierra Nevada. Overnight temperatures were similar to the night before, with a low last night of 71°. Dew point temperatures overnight ran between 41° to 50°, so mugginess was light to moderate, which did affect sleep comfort. Winds overnight were northeasterly at 1-4 mph.
Today is predicted to see clear to partly cloudy skies over Magalia, and another hot day. The high this afternoon is predicted to reach about 96°, but is contingent on how much cloud cover we experience. The low tonight is forecast at a sleep-reducing 73° muggy degrees. Clouds moving north today may bring a chance of showers or thundershowers to the High Sierra, and a slight 5% chance of a stray sprinkle or light shower throughout much of the day and into tonight here in Magalia, but currently looks to be highly unlikely. Winds should be southwesterly today at 5-9 mph, becoming northeasterly at 1-4 mph tonight.
Tuesday may see an increased chance at precipitation as the monsoonal moisture continues to surge northward, and waves of precipitation pass through the region. Precipitation odds increase to a 10% chance in Magalia by sunrise, and continues at 10% throughout the day. Precipitation odds drop to a 0% chance by late Tuesday night. Cloud cover and a slight increase in the onshore air flow may allow for some cooling over today, with a high temperature predicted for Tuesday afternoon at 93°, and the low Tuesday night near 69°.
Wednesday into the weekend looks to be fair and hot, with a slight gradual cooling. Temperatures are currently predicted to remain at or slightly above normal through the latter-half of the week. The long-range forecast model has an area of low pressure dropping out of the Gulf of Alaska by the following week and bringing cooler weather and a threat of precipitation to Magalia around the 12th of the month. This is too far out in the future to be set in stone, but worthy of watching in future forecast models to see if it remains possible. Have a good Monday. Bob