MoCoSnow

An Excessive Heat Warning is in effect for half the county with a Heat Advisory in effect for the other half until 8pm Saturday night. The National Weather Service warns of “Dangerous heat index values of 100-110 are forecast for much of the area again today. Scattered to numerous showers and thunderstorms are expected, especially this afternoon and evening. Some storms may be severe and produce locally damaging winds.”

A “cold front” will move in tomorrow with temperatures in the mid/upper 80s and a heat index in the lower 90s, which will still feel hot, but about 15° cooler than the last couple days have felt. The upcoming week will bring temperatures in the mid 80s, which will give us a little break from the recent extreme heat.

The National Weather Service has issued a Heat Advisory for Northwest Montgomery County, and an Excessive Heat Warning for Central & Southeast Montgomery County from noon through 8:00 PM on […]

Per the National Weather Service: “Hot and humid conditions continue today, with heat indices around 110 degrees along the I-95 corridor this afternoon. Excessive Heat Warnings and Heat Advisories are in effect. Isolated to scattered showers and thunderstorms are also possible.”

The heat and humidity continues today (Friday, July 28th) with the heat index likely at/over 105° for the entire county and at/over 110° for some. Afternoon/evening thunderstorms are possible today. Tomorrow will also be very hot and humid with afternoon thunderstorms possible as a “cold front” enters to bring temperatures in the mid to upper 80s on Sunday and into the start of the week.

The Metropolitan Washington Council of Governments (COG) has forecast a Code Orange air day for the metropolitan Washington region tomorrow: Tuesday, July 18. Smoke coming from wildfires in Canada will contribute to the increased levels of fine particle pollution. The Code Orange levels mean the air is unhealthy for sensitive groups, including older adults, children, and people with heart or lung disease.

Residents can check current air quality conditions on COG’s website or the Clean Air Partners website.

The Metropolitan Washington Council of Governments (COG) has forecast Code Orange air quality for sensitive groups for the metropolitan Washington region tomorrow, Wednesday, July 12, due to ground-level ozone pollution (not Canada wildfire smoke).  The Code Orange levels mean the air is unhealthy for sensitive groups, including older adults, children, and people with heart or lung disease. COG advises the following health precautions:

Residents can check current air quality conditions on COG’s website or the Clean Air Partners website. On unhealthy air days, COG advises the following actions to improve the air:

The Metropolitan Washington Council of Governments (COG) has forecast Code Orange air quality for the metropolitan Washington region tomorrow: Tuesday, July 4 through Thursday, July 6. On Tuesday, Fourth of July fireworks are expected to contribute to increased levels of fine particle pollution. On Wednesday and Thursday, a different pollutant, ground-level ozone, is expected to cause the unhealthy air quality. The Code Orange levels mean the air is unhealthy for sensitive groups, including older adults, children, and people with heart or lung disease. COG advises the following health precautions:

Residents can check current air quality conditions on COG’s website or the Clean Air Partners website. On unhealthy air days, COG advises the following actions to improve the air:

A Severe Thunderstorm Watch is in effect until 10pm for all locations along & east of I-81 (including all of Montgomery County). According to the National Weather Service this afternoon, “Wind & hail are the primary threats along with an isolated tornado. Mariners on the bay & tidal Potomac beware as these storms push east over the next 2-4 hours.”

Earlier today the National Weather Service stated, “Numerous showers and thunderstorms today, with some becoming severe, mainly along and east of the Blue Ridge. Damaging winds and large hail are possible with storms today and an isolated tornado can’t be ruled out.”