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October 7, 2020 – Dry weather with unseasonably warm temperatures continues today then much cooler with precipitation returning Saturday. Wildfire smoke will continue to influence air quality and temperatures for some locations.
A weak low pressure area is moving through Central California this morning and is expected to move slowly northeast and into Nevada by Thursday. A few high clouds are associated with the low but expect mostly sunny skies today with some slight cooling over Tuesdays highs. Another weak dry disturbance will move through on Thursday and bring some cooler air into the region lowering temperatures to near seasonal normals.
A low pressure area is expected to stay well off the coast on Friday and move off the Southern California coast for Saturday becoming cut off from the jet stream. All models are in good agreement with this and producing no rain over the interior.
A second low pressure system will start to move over the region Saturday and Saturday night. Models differ on the strength of the low and the amount of precipitation. Have scaled back on the amount of precipitation going with WPC guidance.
Extended Discussion (Sunday through Wednesday)
A low pressure area will be moving east of the region on Sunday with high pressure building over the region producing northerly winds. As surface high pressure spreads into the Great Basin stronger winds are expected to develop Sunday night into Monday morning.
Winds look to be below advisory level at this time but strong enough that it could cause some wildfire concerns if we don’t get any precipitation or precipitation is very light. A warming trend will occur into early next week before temperatures level off with zonal flow aloft expected.