Monday, May 13, 2019

Weather Discusson for Monday May 13, 2019

Normal high/ low temperatures for May 13-May 20  (high/low) Redding 81/54, Chico 81/54, Quincy 73/38, Chester 69/35, Susanville 71/39, Grass Valley 72/46, Weaverville 77/40, Mt. Shasta 68/41 Yreka 73/41, Alturas 69/35

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring

Big changes are coming in our weather.  The high pressure ridge that has been off the coast is weakening and moving eastward.  The jetstream across the Pacific is intensifying and pushing eastward.    This will lead to a low pressure trough along the coast with jetstream over Northern California from late Tuesday through early next week  (see map below).   During this time a series of frontal systems will bring rain...showers...and thunderstorms to Northern California.   Some areas of the north state will receive at least twice their normal May rainfall between Wednesday and the weekend.  

Today will be partly to mostly sunny with near normal temperatures.  Clouds increase Tuesday and late Tuesday a weakening frontal system will bring rain to the coast, coastal mountains, and areas north of Redding.  A stronger storm will move through Wednesday and Thursday with rain and possible thunderstorms.  Snow levels will be above 6000 feet.   Friday through Saturday midday we will have partly cloudy skies with scattered showers mainly over the mountains.   Another strong storm system will move through Saturday night through Monday.  Snow levels by late Sunday should be near 5000 feet.



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