Executive Summary (Updated 17 May, 2019):
Saturday: Mostly sunny with a chance for isolated showers in the evening/overnight (30% chance). North wind 5-10 mph. High: 74-78 oF.
Sunday: Mostly sunny... Read more
A strong surface area of high pressure has settled in overhead with a seasonably cool air mass. A disorganized weather system will approach the region this weekend with accumulating snow likely. Southerly flow out ahead of the... Read more
Thursday: Sunny and pleasant. Northeast wind 5-10 mph. High near 80 oF.
Friday: Sunny and seasonably warm with gradually increasing humidity. South wind 8-13 mph. High: 80-84 oF.
Forecast... Read more
Executive Summary :
Wednesday: Early morning patchy fog will give way to partly sunny skies and comfortable conditions. Northwest wind 5-10 mph. High near 80 oF.
Thursday: Sunny and pleasant. North wind 5-10 mph. High:... Read more
Monday: Mostly sunny and pleasant. Increasing clouds with a slight chance for scattered showers/storms overnight (25% chance). East wind around 5 mph. High near: 77 oF.
Tuesday: A mix of... Read more
Executive Summary (Updated 18 May 2018 at 1430 EDT):
Saturday: Seasonable with periods of steady rain during the day (80% chance). Off-and-on drizzle with scattered showers and thunderstorms in the evening/overnight (50%... Read more
Wednesday: Mostly cloudy with light rain showers possible during the morning commute. A mix of clouds and sun by midday with increasing clouds and rain likely overnight (75% chance). East wind 5-10 mph. High: 68-72... Read more
Executive Summary (Updated 0900 EDT on 23 May 2017):
Tuesday: Mostly cloudy with rain showers likely in the afternoon (60% chance). Northeast wind 5-10 mph. High: 68-72 oF.
Wednesday: Mostly cloudy conditions in the morning... Read more
Executive Summary (Updated on 19 May at 0845 EDT):
Saturday: Scattered morning showers/drizzle will give way to mostly cloudy skies and noticeably cooler conditions. A slight chance of light rain showers/sprinkles overnight... Read more
A quick moving, but potent Clipper system will swing through the Mid-Atlantic region on Friday. The figure below shows the center of the storm off the Delmarva Peninsula at 0700 EST on March 10. The... Read more
A quick moving Clipper will result in snowfall overnight on Thursday with unseasonably cold temperatures in its wake over the weekend.
A upper air disturbance (i.e. "Clipper") is over across the Midwest on Thursday morning and... Read more
A complex weather pattern is on tap over the next few days. First, a potent cold front will push through tonight. Some light snow showers will be possible before dawn on Thursday. Behind the front, expect... Read more
The Atlantic Ocean has seen an uptick in tropical activity over the last week and that trend is expected to continue over the next two weeks (or more). The image below from the National Hurricane Center (NHC) shows the... Read more
An Air Quality Alert (Code Orange) has been issued for Anne Arundel County, MD on Thursday, May 26. A Code Orange Air Quality Alert means that air pollution concentrations within the region may become unhealthy for sensitive groups... Read more
An Air Quality Alert (Code Orange) has been issued for Anne Arundel County, MD on Wednesday, May 25. A Code Orange Air Quality Alert means that air pollution concentrations within the region may become unhealthy for sensitive groups... Read more
Executive Summary: Commissioning Week Weather Forecast
Monday: Partly cloudy with scattered showers and isolated thunderstorms possible in the afternoon/evening (50% chance). North wind 5-10 mph. High near 70 oF.
Tuesday:... Read more
Executive Summary: Commissioning Week Weather Outlook
Saturday: Cold and raw with periods of rain (90% chance). Rain could be heavy at times during the day, but will taper to light showers/sprinkles during the evening. Northeast wind... Read more
Executive Summary: Commissioning Week Weather Outlook
Saturday: Cold and raw with periods of rain likely (90% chance). Rain could be heavy at times during the day. Northeast wind 10-15 mph, gusting to 25 mph. Low: 52-56 oF. High: 58-62... Read more
An area of low pressure will develop across the upper Midwest on Friday. This system is expected to phase with energy out of the Gulf of Mexico on Saturday night, before tracking up the coast.
Periods of rain are expected to... Read more
An area of low pressure currently situated near the Texas/Arkansas boarder will quickly move east throughout the day. The system is expected to rapidly intensify off the Carolina coast late... Read more
A warm front will lift to our north Friday evening. Southerly flow behind the front will usher in unseasonably warm air on Saturday and Sunday; the normal high temperature at BWI Airport this time of year is 46 oF. ... Read more
An Arctic cold front will slide across the region Friday night. As it passes, snow showers are possible Friday evening with a coating of snow (up to one inch is possible in isolated locations). Due to the potential... Read more
A series of intermittent (and relatively weak) pulses of energy will move across the Mid Atlantic region over the next 48 hour. The first pulse of energy will arrive between 1600 and 2000 EST on Monday as primarily... Read more
The National Weather Service Baltimore/Washington Office has issued a Blizzard Warning beginning at 1500 today through 0600 on Sunday. The National Weather Service has indicated that more than 2 feet of snow is possible for... Read more
Almost all major global circulation models are dumping a potentially historic amount of snow on the greater Baltimore-Washington-Annapolis metro area over the weekend. This is the result of a potent amount of "mid-level"... Read more
The next four days will bring us two chances for accumulating snow. The first will arrive on Wednesday evening as a fast moving clipper system could produce up to one inch of snow between 1500 EST and 2300 EST on... Read more
Generally zonal flow cross the Continental United States is expected for the work week, with a series of fast moving, midlevel short waves of energy. The first wave of energy will cross the Mid-Atlantic States on... Read more
Unseasonably warm weather is on-tap for the remainder of the work week. As shown in the Figure below, an area of high pressure centered over interior New England on Wednesday morning will strength and move offshore throughout... Read more