Powerful Pacific Storm to Continue Impacting Northern California; Heavy Snow in the Appalachians and Portions of the Northeast

A strong atmospheric river will continue to impact northern California with heavy rain and life-threatening flooding through Friday. Unsettled weather is expected across much of the Northeast and Great Lakes over the next few days, including the likelihood of heavy snow in the central Appalachians and higher elevations of northeastern Pennsylvania and southern New York. Read More >

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

Latest Marine Discussion:

.MARINE... High end SCAs are expected to continue through Saturday night with frequent gusts of 20 to 30 kts expected across all waters. Gale force gusts are likely over the open waters of the bay and lower tidal Potomac late this afternoon into early Saturday morning as winds surge behind a departing shortwave trough. Winds are slow to taper Sunday with SCAs likely continue across most of the waters with gusts up to 20 kts. Winds over the waters become southerly on Monday, with the potential for southerly channeling in the afternoon. Winds increase and turn WSW Monday night as a dry cold front approaches, and could reach SCA criteria. SCA conditions could continue into Tuesday with gusty WNW winds behind the front. Update as of: 328 AM EST Fri Nov 22 2024