Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

Map of estimated Water Temperatures
List of Water Temperature observations (at bottom of page/list)

Latest Marine Discussion:

.MARINE... Sub- SCA level winds are expected through tonight. Wind direction will be variable through the day, becoming E to SE tonight. SE winds may increase a bit Monday with a few gusts approaching 20 kt depending on the depth of mixing. Marginal advisory conditions remain possible along the bay and lower Potomac Monday night, but confidence remains somewhat low. A slow moving upper low will drift northeastward from the Tennessee Valley on Tuesday into Tuesday night. Ahead of it, periods of moderate to heavy rain and embedded thunderstorms are likely amidst a steady southeasterly wind. Gusts up to 20 knots at times will likely require Small Craft Advisories. Winds will be lesser on Wednesday, but still flirt with SCA criteria over the open waters out of the southeast. Rain still likely at times over the waters Wednesday. On Thursday, showers/thunderstorms look to be more convective in nature, so SMWs possible given thermodynamics at play. Update as of: 400 AM EDT Sun May 11 2025