Showers and thunderstorms will remain possible today, especially near and northeast of the Potomac River, and temperatures will remain below normal. After a break Monday, rain returns to the forecast Tuesday.

Severe Thunderstorm Warning including Essex MD, Middle River MD and White Marsh MD until 12:45 PM EDT pic.twitter.com/hbxB…

941 PM: In the wake of the initial round of showers, a cluster of severe storms has been pushing eastward along the MD/PA border. A mixture of Severe Thunderstorm (yellow) and Tornado Warnings (red) have persisted. This has also spread additional cloud cover over the area.

Severe weather alerts now in effect.

Here is the latest severe weather outlook from the Storm Prediction Center.

Special Marine Warning including the Chesapeake Bay from Drum Point MD to Smith Point VA, Tangier Sound and the inland waters surrounding Bloodsworth Island, Chesapeake Bay from North Beach to Drum Point MD and Patuxent River to Broomes Island MD until 9:00 AM EDT

Here's a look at observed low temperatures across the Lower 48 this morning.

A MODERATE risk is in effect in our Day 1 Excessive Rainfall Outlook. More details: go.usa.gov/cu3Dw

Heavy rain and severe thunderstorm chances extend from the southern Plains to the lower Mississippi Valley and Southeast over the next few days go.usa.gov/cu3Wx

Well above average temperatures expected throughout the West and north-central United States go.usa.gov/cu3Wx

Congratulations to all the recent #meteorology graduates! If you are considering a career in government operational meteorology, please do reach out to @amsbogm and @AMS_WAF government members (myself included) for tips & suggestions.

Radar Update: These storms will move into parts of Frederick County 10:30 - 11 PM. They have had a history of producing strong winds and even prompted a few tornado warnings. Hopefully they will weaken in the cool air around the Baltimore Metro. #MdWx

STRONG TO SEVERE STORMS IN WESTERN MARYLAND: Are moving southeast at 35 mph. Severe thunderstorm warning for parts of Washington Co. until 10:15 PM. Storms will weaken as they approach Baltimore metro. SW areas like Howard Co. & Frederick co. could have downpours & lightning @WJZ

The extreme geomagnetic storm continued this morning. Weather permitting, the northern lights will be visible in much of the U.S. again tonight. Unfortunately, here in MD clouds and showers are coming back this evening. 😢

Meteorologist Dalencia Jenkins Mix of sun and clouds to start Mother’s Day weekend in Maryland. www.wbal.com/baltimo… pic.twitter.com/Khcx…

Tornado Warning including Berkeley Springs WV and Great Cacapon WV until 9:45 PM EDT