FNUS86 KLOX 202327 FWLLOX ECCDA Discussions National Weather Service Los Angeles/Oxnard CA 327 PM PST Wed Nov 20 2024 ECC029-211730- Los Padres National Forest- Discussion for Vandenberg ECC Dispatch 327 PM PST Wed Nov 20 2024 ...Discussion from Monterey... A deep subtropical water vapor and moisture tap i.e. strong atmospheric river attached to a nearly stationary low pressure system centered near the Pacific Northwest will continue to bring moderate to heavy rain to the North Bay tonight into Friday. Areas of strong and gusty southerly winds will continue across the district, especially at elevation in the hilltops and mountaintops. The atmospheric river is also nearly stationary and it's forecast to move eastward only until after secondary (rapid) low pressure development occurs over the northeast Pacific Thursday into Friday. The secondary development will push forward a cold front and wetting rain farther south and east across the rest of the district Friday. A few showers linger Saturday, more widespread wet weather returns Sunday. Unsettled wet weather may continue into early to mid next week. Note : All winds are 20-foot Winds Unless otherwise specified. Thunderstorms imply strong, gusty and erratic winds. ...Discussion from Los Angeles/Oxnard... ...EXTREME DRYING OVER THE MOUNTAINS AND INTERIOR THROUGH FRIDAY WITH LOCALLY GUSTY WINDS RESULTING IN ELEVATED FIRE WEATHER CONDITIONS... ...WIDESPREAD WETTING RAINS LIKELY WITH SIGNIFICANT COOLING AND MOISTENING FRIDAY NIGHT THROUGH AT LEAST WEDNESDAY... High pressure aloft will peak through Friday. An extremely dry air mass will drop down into southwest California focused over the mountains and many valleys. Minimum humidities will lower to 3 to 10 percent for Thursday and Friday, with poor overnight recoveries. Meanwhile, southeast to southwest wind gusts of 20 to 35 mph will be common over the mountains and foothills. Due to the very dry air, elevated fire weather conditions are expected with isolated brief critical conditions over the windier mountains. A significant pattern change will commence Friday Night and last through next week. Confidence is high in widespread rain over the region, but confidence is low in total amounts and timing. The first wave of rain will occur late Friday Night and Saturday, with light amounts and rates. The next wave of rain looks to start sometime between Sunday and Tuesday, with a wide range of outcomes remaining. The most likely outcome is for beneficial rain. $$ ECC028-211730- Santa Barbara County excluding Los Padres National Forest- Discussion for Santa Barbara ECC Dispatch 327 PM PST Wed Nov 20 2024 ...EXTREME DRYING OVER THE MOUNTAINS AND INTERIOR THROUGH FRIDAY WITH LOCALLY GUSTY WINDS RESULTING IN ELEVATED FIRE WEATHER CONDITIONS... ...WIDESPREAD WETTING RAINS LIKELY WITH SIGNIFICANT COOLING AND MOISTENING FRIDAY NIGHT THROUGH AT LEAST WEDNESDAY... High pressure aloft will peak through Friday. An extremely dry air mass will drop down into southwest California focused over the mountains and many valleys. Minimum humidities will lower to 3 to 10 percent for Thursday and Friday, with poor overnight recoveries. Meanwhile, southeast to southwest wind gusts of 20 to 35 mph will be common over the mountains and foothills. Due to the very dry air, elevated fire weather conditions are expected with isolated brief critical conditions over the windier mountains. A significant pattern change will commence Friday Night and last through next week. Confidence is high in widespread rain over the region, but confidence is low in total amounts and timing. The first wave of rain will occur late Friday Night and Saturday, with light amounts and rates. The next wave of rain looks to start sometime between Sunday and Tuesday, with a wide range of outcomes remaining. The most likely outcome is for beneficial rain. $$ ECC031-211730- Angeles National Forest- Discussion for Lancaster ECC Dispatch 327 PM PST Wed Nov 20 2024 ...EXTREME DRYING OVER THE MOUNTAINS AND INTERIOR THROUGH FRIDAY WITH LOCALLY GUSTY WINDS RESULTING IN ELEVATED FIRE WEATHER CONDITIONS... ...WIDESPREAD WETTING RAINS LIKELY WITH SIGNIFICANT COOLING AND MOISTENING FRIDAY NIGHT THROUGH AT LEAST WEDNESDAY... High pressure aloft will peak through Friday. An extremely dry air mass will drop down into southwest California focused over the mountains and many valleys. Minimum humidities will lower to 3 to 10 percent for Thursday and Friday, with poor overnight recoveries. Meanwhile, southeast to southwest wind gusts of 20 to 35 mph will be common over the mountains and foothills. Due to the very dry air, elevated fire weather conditions are expected with isolated brief critical conditions over the windier mountains. A significant pattern change will commence Friday Night and last through next week. Confidence is high in widespread rain over the region, but confidence is low in total amounts and timing. The first wave of rain will occur late Friday Night and Saturday, with light amounts and rates. The next wave of rain looks to start sometime between Sunday and Tuesday, with a wide range of outcomes remaining. The most likely outcome is for beneficial rain. $$ ECC024-211730- San Luis Obispo County- Discussion for San Luis Obispo ECC Dispatch 327 PM PST Wed Nov 20 2024 ...EXTREME DRYING OVER THE MOUNTAINS AND INTERIOR THROUGH FRIDAY WITH LOCALLY GUSTY WINDS RESULTING IN ELEVATED FIRE WEATHER CONDITIONS... ...WIDESPREAD WETTING RAINS LIKELY WITH SIGNIFICANT COOLING AND MOISTENING FRIDAY NIGHT THROUGH AT LEAST WEDNESDAY... High pressure aloft will peak through Friday. An extremely dry air mass will drop down into southwest California focused over the mountains and many valleys. Minimum humidities will lower to 3 to 10 percent for Thursday and Friday, with poor overnight recoveries. Meanwhile, southeast to southwest wind gusts of 20 to 35 mph will be common over the mountains and foothills. Due to the very dry air, elevated fire weather conditions are expected with isolated brief critical conditions over the windier mountains. A significant pattern change will commence Friday Night and last through next week. Confidence is high in widespread rain over the region, but confidence is low in total amounts and timing. The first wave of rain will occur late Friday Night and Saturday, with light amounts and rates. The next wave of rain looks to start sometime between Sunday and Tuesday, with a wide range of outcomes remaining. The most likely outcome is for beneficial rain. $$ ECC032-211730- Ventura County excluding Los Padres National Forest- Discussion for Ventura ECC Dispatch 327 PM PST Wed Nov 20 2024 ...EXTREME DRYING OVER THE MOUNTAINS AND INTERIOR THROUGH FRIDAY WITH LOCALLY GUSTY WINDS RESULTING IN ELEVATED FIRE WEATHER CONDITIONS... ...WIDESPREAD WETTING RAINS LIKELY WITH SIGNIFICANT COOLING AND MOISTENING FRIDAY NIGHT THROUGH AT LEAST WEDNESDAY... High pressure aloft will peak through Friday. An extremely dry air mass will drop down into southwest California focused over the mountains and many valleys. Minimum humidities will lower to 3 to 10 percent for Thursday and Friday, with poor overnight recoveries. Meanwhile, southeast to southwest wind gusts of 20 to 35 mph will be common over the mountains and foothills. Due to the very dry air, elevated fire weather conditions are expected with isolated brief critical conditions over the windier mountains. A significant pattern change will commence Friday Night and last through next week. Confidence is high in widespread rain over the region, but confidence is low in total amounts and timing. The first wave of rain will occur late Friday Night and Saturday, with light amounts and rates. The next wave of rain looks to start sometime between Sunday and Tuesday, with a wide range of outcomes remaining. The most likely outcome is for beneficial rain. $$ ECC030-211730- Los Angeles County excluding Angeles National Forest- Discussion for Los Angeles ECC Dispatch 327 PM PST Wed Nov 20 2024 ...EXTREME DRYING OVER THE MOUNTAINS AND INTERIOR THROUGH FRIDAY WITH LOCALLY GUSTY WINDS RESULTING IN ELEVATED FIRE WEATHER CONDITIONS... ...WIDESPREAD WETTING RAINS LIKELY WITH SIGNIFICANT COOLING AND MOISTENING FRIDAY NIGHT THROUGH AT LEAST WEDNESDAY... High pressure aloft will peak through Friday. An extremely dry air mass will drop down into southwest California focused over the mountains and many valleys. Minimum humidities will lower to 3 to 10 percent for Thursday and Friday, with poor overnight recoveries. Meanwhile, southeast to southwest wind gusts of 20 to 35 mph will be common over the mountains and foothills. Due to the very dry air, elevated fire weather conditions are expected with isolated brief critical conditions over the windier mountains. A significant pattern change will commence Friday Night and last through next week. Confidence is high in widespread rain over the region, but confidence is low in total amounts and timing. The first wave of rain will occur late Friday Night and Saturday, with light amounts and rates. The next wave of rain looks to start sometime between Sunday and Tuesday, with a wide range of outcomes remaining. The most likely outcome is for beneficial rain. $$