Hazy, Hot and Humid; Scattered Afternoon Storms

Current Surface Map
Current Surface Map
Another hot and humid day is on tap today. Highs will once again be in the mid to upper 90s with heat index values near 110. An Excessive Heat Warning is in effect for Washington and Baltimore, while a Heat Advisory is in effect for the surrounding counties in central Maryland.

There will also be scattered thunderstorms this afternoon. The storms will be capable of producing gusty winds, heavy rainfall and large hail.

A cold front will approach tomorrow, but will remain to our north resulting in another hot and humid day with afternoon and evening thunderstorms. Highs will be in the mid 90s. The storms could be strong to severe, with damaging winds, large hail and locally heavy rainfall.

Heat Peaks Today; Strong Thunderstorms Likely This Weekend

Current Surface Map
Current Surface Map
High pressure will move overhead today and bring the hottest conditions of the week. Highs will likely top out in the mid to upper 90s with higher humidity values making it feel over 105. A Heat Advisory is in effect central Maryland through this evening.

Afternoon thunderstorms will likely develop over the mountains and move eastward towards the Baltimore/Washington metro during the late afternoon hours. This activity is expected to be isolated but areas that do see storms could see brief heavy rainfall and gusty winds.

Tomorrow will be similar to today, possibly a few degrees cooler with a slight chance of afternoon storms. Highs will be in the mid 90s with dewpoints in the low to mid 70s and heat indices near 105.

Heat Wave Continues

Current Surface Map
Current Surface Map
With high pressure remaining to our west, hot and humid conditions will persist along the east coast today. Highs will be in the mid 90s with heat indices around 100. Isolated thunderstorms will be possible again, mainly in the mountains.

The high will move overhead tomorrow, as it begins to be dislodged by a cold front. Highs will be in the mid 90s with a slight chance of afternoon storms.

The high will move to our southeast on Friday, allowing southerly flow to develop which may in turn raise our temperatures to the upper 90s and cause dewpoints to rise into the low to mid 70s. The result will be heat indices that may top 105 degrees in some areas. There is a slightly better chance of thunderstorms Friday afternoon.

Another Hot and Humid Day

Current Surface Map
Current Surface Map
With high pressure still in control of the weather, expect another hot and humid day today. Highs will be a few degrees warmer than yesterday, pushing into the mid 90s with heat index values near 105 this afternoon.

Tomorrow will be a near carbon-copy of today. It will continue to be hot and humid with highs in the mid 90s.

A stray afternoon thunderstorm will be possible each day, mainly across the mountains.

The high pressure center will begin to weaken across the area Thursday and Friday, allowing a better chance of thunderstorms, but this activity will remain isolated at best. Highs both days will remain in the mid 90s.

Hottest Weather of the Year This Week

Current Surface Map
Current Surface Map
A strengthening area of high pressure will bring the first real heat wave of the year this week. A cold front should bring some relief this weekend.

Today will feature mostly sunny skies with a high around 95. Heat indices will be near 100 this afternoon.

The heat and humidity will continue to build tomorrow through Friday, with highs in the mid to upper 90s and heat index values well into the 100s.

More Showers and Storms; Pattern Shifts Tomorrow

Current Surface Map
Current Surface Map
Low pressure remains to our west while high pressure remains to our east. The flow around them continues to send moisture up the east coast.

Today will be similar to the past few, with scattered showers and thunderstorms capable of producing locally heavy rainfall. Highs will be in the low to mid 80s.

The high pressure center will begin to move westward tonight. This will push the widespread shower and storm activity to our west tomorrow.

Expect a more typical summer day for the Fourth of July holiday. Highs will be around 90 degrees with a slight chance of a pop up afternoon thunderstorm.

Another Day of Showers and Storms

Current Surface Map
Current Surface Map
As this blocking pattern continues, another day of showers and storms is on tap. The good news is, after today, rain chances will gradually decrease.

Scattered showers are moving through the area at this time and this will continue into the afternoon. Additionally, with the afternoon heating, thunderstorms will also be possible.

Any shower or storm will be capable of producing locally heavy rainfall and flash flooding. A Flash Flood Watch is in effect for all of central Maryland. Highs today will be low 80s.

More Showers and Thunderstorms; Continued Flash Flood Threat

Current Surface Map
Current Surface Map
An upper low to our west remains blocked by high pressure off the coast. This will keep moist southerly flow locked into the region.

Batches of showers and thunderstorms will continue to move through the area today, bringing locally heavy rainfall. A Flash Flood Watch is in effect for the entire state, except for the mountains. Highs will be in the low to mid 80s.

Scattered showers will continue through tonight. Another round of showers and thunderstorms are likely tomorrow and tomorrow night. Highs will be in the low to mid 80s.

Continued Thunderstorm Threat

Current Surface Map
Current Surface Map
With a Bermuda High blocking things up, a stationary boundary will persist in the area through the weekend and into next week. This will keep thunderstorms in the forecast each day.

Today will become partly sunny with highs in the mid to upper 80s. Thunderstorms will develop this afternoon and persist into the evening.

Much of the same for tomorrow. Partly sunny skies, highs in the mid to upper 80s with afternoon and evening storms likely.

Storm coverage will decrease a bit on Sunday, but the threat still persists. Highs will be in the low to mid 80s.

Thunderstorms Likely Today

Current Surface Map
Current Surface Map
High pressure will remain off the coast as a cold front approaches from the west. This front will increase southerly flow ahead of it resulting in a breezy day today.

Additionally, it will cause an increase in instability as we move into the afternoon. Thunderstorms are likely throughout the state this afternoon and evening. Some of the storms may become severe with damaging winds as the primary threat. Highs will top out around 90 degrees.

The front will move into the state tomorrow and then stall out. This will keep thunderstorm chances in the forecast through the weekend and into next week. Highs tomorrow will be in the upper 80s.