This is my alt account. Nonprofit founding member, documentarian, accountant, financial manager @ open source humanitarian crises response organization.
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ALT Surface temperature anomaly map showing predicted pattern in about 1 week from present (using data from the ECMWF ensemble). It shows a broad region of much above average temperatures across most of the U.S. West coast and points inland.
ALT 500mb GPH anomaly map showing predicted pattern in about 1 week from present (using data from the ECMWF ensemble). It shows a large, broad, and persistent ridge centered in the Pacific Northwest.
ALT A detailed National Weather Service forecast table titled "Probability of Precipitation (%) & Precip (inches) & Probability of Thunder (%) Forecast" for April 20–22, 2026. Data Summary: The table lists 28 California locations across the Bay Area and Central Coast. PoP (Rain Chance): Shows high probabilities (80%–95%) starting Monday morning and peaking on Tuesday. Precip Total: Total rainfall estimates range from a low of 0.47" in King City to a high of 1.95" in Cloverdale. Most urban centers are between 0.80" and 1.30". PoT (Thunder Chance): Highlighted in yellow-orange, the probability of thunder increases significantly on Tuesday, specifically between 12 PM and 6 PM, with values reaching 25%–30% for nearly every location.
ALT This graphic displays a tornado warning plotted on a map. The warning is in effect until 2:45 PM PDT. The warning includes San Joaquin County, CA, Stanislaus County, CA. This warning is for East central San Joaquin County in central California and North central Stanislaus County in central California. The threats associated with this warning are a radar indicated tornado and ping pong sized hail. There are 8,953 people in the warning along with 6 schools and 0 hospitals.
ALT Forecast high temperatures for the upcoming week and widespread moderate heatrisk across the region. A prolonged mid-March heatwave with temperatures in the upper 80s to 90s will take place next week. If you are spending any time outdoors make sure to take plenty of breaks and stay hydrated.
ALT What is Moderate HeatRisk? It happens many time of year but it can increase the risk of heat-related illnesses to those sensitive to heat, those without effective cooling, and those with chronic diseases. Take precautions if outside in the heat for prolonged periods of time.
