Marine Weather and Tide Forecast for Paskenta, CA

DISCUSSION

Today...

Strong upper level ridging remains in place over interior Northern California today resulting in widespread Valley triple digit temperatures and the hottest temperatures of the week. Widespread Moderate HeatRisk and areas of Major HeatRisk are expected today as well across portions of the Valley and foothills. As a result, a Heat Advisory is in effect until 10 PM tonight for the Valley, Delta, and foothills. This ridge will weaken slightly tomorrow resulting in slightly "cooler" high temperatures, however overnight lows in the northern Sacramento Valley and foothills will remain elevated in the mid 70s to low 80s tonight into tomorrow.

A passing Pac NW trough will continue bring increased north to northwest winds through the northern/central Sacramento Valley and Shasta County through the early afternoon with gusts 15 to 25 mph at times. This in addition to low daytime humidity values into the lower teens and upper single digits and limited overnight humidity recovery, will result in elevated fire weather conditions across the northern Sacramento Valley and surrounding terrain, Burney Basin, and Sierra foothills through today.

Additionally, north to east transport winds will bring lofted smoke from surrounding wildfires to Shasta County, Burney Basin, and parts of the northern Sacramento Valley late tonight into tomorrow morning which may result in slightly hazy conditions.

Tuesday into this Weekend...
Ensemble guidance continues to support the subtle flattening out of the upper ridge through Wednesday which will allow for temperatures to cool off by a few degrees Tuesday-Wednesday, providing some limited relief and slightly cooler overnight temperatures. Additionally, this weakening of the ridge will enhance Delta breeze influence resulting in marginal improvements to humidity recovery and overnight cooling mainly through the Delta and portions of the southern Sacramento Valley.

This upper ridge then restrengthens and heights increase Thursday through Saturday, resulting in widespread triple digit Valley temperatures once again with limited overnight relief and a return to widespread Moderate HeatRisk. Despite marginal humidity recovery improvements from the Delta Breeze, low daytime humidity and poor overnight recovery is likely to continue for much of interior NorCal throughout the extended forecast period.

AVIATION
VFR conditions are expected to prevail over the next 24 hours.
Winds generally remain 12 kts or less at TAF sites from Interstate 80 southward. North to northwest gusts 15 to 25 kts are expected in the Sacramento Valley along and west of the I-5 corridor until 21Z Monday. West to southwest gusts up to 20 kts in the Delta from 00Z through 18Z Tuesday.

STO WATCHES/WARNINGS/ADVISORIES
Heat Advisory until 10 PM PDT this evening for Butte County Below 1000 ft-C. San Joaquin County including Stockton-C. Solano County including Fairfield-C. Stanislaus County including Modesto-C. Yolo/NE Solano including Woodland-Central Colusa County Incl. I-5-Central Glenn Co & Interstate 5-Central Motherlode 1000-3000 ft-E. Diablo Range Above 1000 ft-Eastern Colusa County-Eastern Glenn County-N. Motherlode 1000-3000 ft-N.
Sac Valley in Tehama County-NE San Joaquin Valley Below 1000 ft- Sac Metro/W. El Dorado/Amador County-Sacramento County Delta-San Joaquin County Delta-Shasta County Foothills 1000-3000 ft-Shasta Metro-Sierra (Tehama-Plumas) 1000-3000 ft-Southern Motherlode 1000-3000 ft-Sutter/Yuba counties below 1000 ft-Tracy Triangle Below 1000 ft-W Tehama Co Foothills 1000-3000 ft-W. Glenn/Colusa Foothills 1000-3000 ft-W. Stanislaus County Above 1000 ft & I-5- W. Yolo County including Capay/I-505-Yolo / Solano County Hills.