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Unseasonal June storm system reaches Southern California<\/strong><\/p>\n Residents across Southern California<\/strong> are bracing for a rare early-summer storm<\/strong>, as a cold low-pressure system<\/strong> moving in from the northwest<\/strong> is set to bring showers and isolated thunderstorms<\/strong> through Sunday evening<\/strong>. This marks a notable break<\/strong> from the region\u2019s typically dry and stable June weather<\/strong>.<\/p>\n According to the National Weather Service in San Diego<\/strong>, this disturbance is expected to weaken and shift eastward<\/strong> by Monday<\/strong>, but not before delivering light to moderate rainfall<\/strong>, especially in mountainous<\/strong> and desert<\/strong> regions. The system is tapping into elevated atmospheric instability<\/strong>, setting the stage for possible convective development<\/strong>, particularly during the late morning to evening hours on Sunday<\/strong>.<\/p>\n <\/p>\n Forecast details for rainfall and thunderstorm activity<\/strong><\/p>\n The strongest impacts will be felt east of the coastal ranges<\/strong>, particularly in the San Diego County Mountains<\/strong> and Riverside County highlands<\/strong>, where thunderstorm cells<\/strong> could produce localized rainfall rates near 0.5 inches per hour<\/strong>. Coastal and valley areas, including parts of Orange County<\/strong>, may see little to no accumulation<\/strong>, generally under 0.10 inches (2.5 mm)<\/strong>.<\/p>\n High-resolution forecast models<\/strong> (WRF and HRRR) show the peak precipitation window<\/strong> extending from 5:00 a.m. to 11:00 p.m. Sunday<\/strong>, with accumulations<\/strong> ranging from 0.05 to 0.20 inches (1.3 to 5.1 mm)<\/strong> along the coast<\/strong>, increasing significantly with elevation<\/strong>.<\/p>\n <\/p>\n Atmospheric instability raises storm concerns<\/strong><\/p>\n Current CAPE (Convective Available Potential Energy) values between 300\u2013600 J\/kg<\/strong> are supporting a moderate risk for thunderstorm formation<\/strong>, especially where surface convergence<\/strong> and upper-level winds<\/strong> align. Any storm that forms could produce brief gusty outflow winds<\/strong> over 30 knots (35 mph)<\/strong>, erratic gusts<\/strong>, and near-zero visibility<\/strong> in heavy downpours<\/strong>.<\/p>\n <\/p>\n Marine outlook and beach hazards<\/strong><\/p>\n A southerly swell<\/strong> fueled by tropical activity<\/strong> offshore will boost surf heights to 4\u20136 feet<\/strong> by Monday<\/strong>, with higher surf and rip current risks<\/strong> through Tuesday afternoon<\/strong>. A Beach Hazard Statement<\/strong> is in effect for San Diego<\/strong> and Orange County coastlines<\/strong>, urging beachgoers<\/strong> to be cautious of strong currents<\/strong> and elevated wave action<\/strong>.<\/p>\n Despite the storm, ocean temperatures<\/strong> are warming, with readings reaching 68\u00b0F (20\u00b0C)<\/strong> on some buoys. Still, the incoming unstable weather<\/strong> may pose dangerous beach conditions<\/strong>, especially in exposed southern-facing areas.<\/p>\n <\/p>\n Historical context and regional anomalies<\/strong><\/p>\n This type of cold-core low in early June<\/strong> is highly unusual<\/strong> for Southern California<\/strong>, where precipitation typically drops off<\/strong> sharply after May<\/strong>. Meteorologists at Weather West<\/strong> note that hail accumulation<\/strong> and even localized mini-supercells<\/strong> are possible under the right convective conditions. This continues a year marked by significant climatic variability<\/strong>, as this water year’s precipitation patterns<\/strong> have ranged dramatically across California and Nevada<\/strong>.<\/p>\n <\/p>\n Next week outlook: calmer skies ahead<\/strong><\/p>\n Following Sunday’s activity<\/strong>, a cool and dry Monday<\/strong> will usher in more stable weather<\/strong> for the work week<\/strong>, with temperatures expected to rise<\/strong> slowly. No further precipitation is forecast through late next week<\/strong>, allowing the region to recover<\/strong> from this rare June weather event<\/strong>.<\/p>\n Skywarn activation is not currently expected<\/strong>, but meteorologists are encouraging weather spotters<\/strong> to report any significant observations<\/strong> throughout the weekend.<\/p>\n","protected":false},"excerpt":{"rendered":" Unseasonal June storm system reaches Southern California Residents across Southern California are bracing for a rare early-summer storm, as a cold low-pressure system moving in from the northwest is set to bring showers and isolated thunderstorms through Sunday evening. This marks a notable break from the region\u2019s typically dry and stable June weather. According to […]<\/p>\n","protected":false},"author":17,"featured_media":3401,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3400","post","type-post","status-publish","format-standard","has-post-thumbnail","category-news"],"yoast_head":"\n