Weather Alerts For Tuolumne, CA
Flood Watch
-URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Sacramento CA 925 AM PST Fri Jan 2 2026 .An Atmospheric River Event will bring moderate to heavy rain this evening through Monday evening. The prolonged period of rain will bring the risk of flooding to the Sacramento Valley, Shasta County, northern Sierra Nevada and adjacent foothills, as well as the Coastal Range. This will be for elevations below 4000 feet. Shasta Lake Area / Northern Shasta County-Northern Sacramento Valley-Central Sacramento Valley-Southern Sacramento Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Including the cities of Red Bluff, Jackson, Alder Springs, Redding, Sacramento, Paradise, Shasta Dam, Chico, Grass Valley, Marysville/Yuba City, and Oroville 925 AM PST Fri Jan 2 2026 ...FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH MONDAY AFTERNOON... * WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of northern California below 4000 feet in elevation, including the following areas, Sacramento Valley, Motherlode, Mountains Southwestern Shasta County to Western Colusa County, Northeast Foothills, and Shasta Lake Area / Northern Shasta County. * WHEN...From this evening through Monday afternoon. * IMPACTS...Excessive runoff will result in rises along area rivers, creeks, streams. Small streams and creeks may rise out of their banks. Flooding may occur in low-lying, poor drainage, and urban areas. Mudslides and rockslides may occur in mountain and foothill areas. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
Severe Storm Risk
-There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHEAST AND CENTRAL GULF COAST...AND FROM NORTHERN/CENTRAL CALIFORNIA INTO SOUTHWEST OREGON SUMMARY Isolated severe storms are possible across parts of the Southeast today. A few marginally severe storms will also be possible from the Sacramento and northern San Joaquin Valleys to coastal areas of northern California and southwest Oregon. Southeast/Central Gulf Coast Early-morning satellite imagery shows a shortwave trough progressing southeastward across northeast TX towards the Lower MS Valley. Expectation is for this wave to continue southeastward through the Lower MS Valley and central Gulf Coast before eventually moving off the Southeast coast late tonight/early tomorrow. Surface analysis places a low associated with this wave over east TX, with another low farther east over central AL. A modest stationary front currently extends between these lows. This front will transition to a cold front this morning, progressing southeastward as the surface lows also move southeastward ahead of the approaching shortwave. Mid 60s dewpoints are in place ahead of this front from the Upper TX Coast through southern LA into southern MS/AL. Given the presence of the stationary front, this is likely near the northern extent of this greater low-level moisture. Diurnal heating will be limited by cloud cover, but the general expectation is for modest buoyancy ahead of the approaching cold front. This buoyancy will support scattered thunderstorm development along the front as it moves through the region. Low-level flow will likely veer ahead of the front, limiting low-level curvature. Even so, strong mid-level westerly/southwesterly flow will extend across the region, resulting in long hodographs that could support occasional organized updrafts. Primary severe risk will be isolated damaging gusts, although a low-probability risk for a brief tornado exists as well. Some isolated hail could also occur, particularly with any storms near the surface low over southern AL and the western FL Panhandle during the late afternoon/early evening when colder mid-level temperatures are in place. Northern/Central California into Southwest Oregon Another shortwave trough is forecast to quickly rotate through the base of the cyclone off the Northwest coast, reaching the northern CA/southern OR coast this afternoon. Deep and robust southwesterly flow is currently in place across much of the region. Some weakening is possible throughout the day, but deep-layer vertical shear should remain more than sufficient for rotating storms. However, very limited buoyancy will temper updraft strength and duration, keeping the overall severe potential low. Greatest chance for damaging gusts is expected with any deeper convection that develops as the primary forcing for ascent spreads into the northern CA and southwest OR coasts this afternoon. Additionally, southerly low-level flow up the Sacramento and northern San Joaquin Valleys, could result in enough low-level curvature for an isolated low-topped supercell capable of a brief tornado.