Posted at 11:55 a.m.
The National Weather Service is forecasting a multiple day heat wave Friday, July 22 through Monday, July 25. You should expect excessive heat with temperatures in the upper 90s with heat indices at or above 105°F (Fahrenheit). The hottest days appear to be Saturday, July 23 and Sunday, July 24 when heat indices could approach 110°F.
A heat dome will build over the region from the Midwest and cause temperatures to soar into the upper 90s and may reach 100°F. This, when combined with high humidity, will create dangerous heat indices exceeding 105°F.
Please use caution this weekend and remember these heat safety tips:
- Never leave children or pets alone in a closed vehicle.
- Drink plenty of fluids: Drink two to four glasses of cool fluids each hour.
- Your body needs water to keep cool. Drink water even if you don’t feel thirsty.
- Do not drink caffeinated or alcoholic beverages because they dehydrate the body.
- Keep cool indoors: If you can, stay in an air-conditioned area.
- Ensure your home’s cooling system is working properly before it is truly needed.
- Resting for just two hours in air conditioning can significantly reduce heat-related illnesses.
- Consider spending the warmest part of the day in public buildings such as libraries, schools, movie theaters, shopping malls and other community facilities, including the county’s cooling centers.
- Electric fans may provide comfort, but with temperatures in the 90s, fans will not prevent heat-related illness.
- Avoid strenuous physical activities or reschedule outdoor activities for the coolest part of the day, usually the early morning. Limit physical activity until your body adjusts to the heat.
- Wear sunscreen to prevent sunburn. Sunburn makes it more difficult for your body to cool off.
- Wear light-colored clothing, which helps reflect sunlight.
- Eat light meals, avoiding high-protein foods because they increase metabolic heat.
- Don’t take salt tablets unless directed by a physician.
Learn more about extreme heat and how to stay safe, as well as precautions to take for the vulnerable and pets.
Posted at 10:30 a.m.
A winter weather advisory for snow is in effect from 10 p.m. this evening to 10 a.m. tomorrow, Friday, March 4. The National Weather Service is predicting accumulations between one to four inches across the National Capital Region.
Precipitation will move in initially as a rain and snow mix early this evening before transitioning to all snow late tonight. Snow is expected overnight impacting the morning commute. Snow is expected to taper off by midday Friday.
This snow will cause slippery roads resulting in hazardous travel conditions.
A winter weather advisory for snow means that periods of snow will cause travel difficulties including slippery roads resulting in hazardous travel conditions. Be prepared for snow covered roads and limited visibilities, and use caution while driving.
Get the complete weather forecast.
Posted at 9:35 a.m.
Fairfax County and surrounding areas are under a flood watch issued by the National Weather Service through this evening. A flood watch means there is a potential for flooding based on current forecasts.
The time for the greatest threat of flooding will be from this afternoon through tonight.
Rain, mainly before 2 p.m. with a high temperature near 48. Southeast wind 13 to 17 mph becoming west in the afternoon; winds could gust as high as 24 mph. The chance of precipitation is 100 percent with precipitation amounts between three quarters and one inch possible.
Because normal drainage areas may be blocked by snow and ice, coupled with today’s rain and melting snow as temperatures rise above freezing, small streams and tributaries may overflow their banks.
Here’s two important safety reminders:
- Never drive through flooded roadways. Road beds may be washed out under flood waters. Turn Around, Don’t Drown.
- Keep children away from creeks and their potentially rapidly rising waters.
Continue to monitor weather forecasts throughout the day and be alert for possible flood warnings. If you live in an area that is prone to flooding, be prepared to take action should flooding develop.
Clear Storm Drains
Blocked stormdrains prevent the flow of rain and melting snow from reaching streams and stormwater detention ponds. The water then backs up into streets and yards and may flood basements. Blocked stormdrains also may damage residential and commercial property and cause traffic delays.
Keep the openings of storm drains clear of snow and debris to help alleviate potential flooding and to protect the environment. At no time, however, should you attempt to enter a storm drain to remove debris.
Property owners are responsible for driveway culverts and bridges that are part of the driveway structure and are not public storm drainage system structures. Storm drains outside rights-of-way and easements are privately maintained by the property owner.
To report a blocked storm drain, call Fairfax County Stormwater Management, 703-877-2800, TTY 711, or the Virginia Department of Transportation at 703-383-8368, TTY 711.
Posted at 9:40 a.m.
The National Weather Service has issued a winter storm warning for Fairfax County and surrounding areas for snow and freezing rain, in effect until 4 a.m. tomorrow morning, Tuesday, Feb. 16.
A winter storm warning means significant amounts of snow, sleet and ice are expected or occurring, making travel very hazardous or impossible. Strong winds are also possible.
Snow, sleet and freezing rain are predicted with snow accumulation of 4 to 6 inches along with around a tenth of an inch of ice. The snow will change to sleet and freezing rain this afternoon and all freezing rain this evening. Precipitation will gradually change to rain late tonight.
The snow and ice will cause slippery roads and travel will be difficult.
Virginia Department of Transportation (VDOT) crews have been working throughout the night to plow and treat roads. Snow and ice removal operations will continue as long as conditions exist.
VDOT asks that motorists delay travel as slick conditions could develop quickly, even on treated roads.
- If you are driving, allow extra time to reach your destination, lower speed and keep a safe distance from other vehicles.
- Watch out for black ice, especially near bridges, overpasses, ramps and shaded areas.
- Slow down and allow slow-moving equipment crews, such as snow plow operators, the right of way.
Get more on the forecast.
Fairfax County Government offices are closed today, Monday, Feb. 15 for the George Washington’s Day (Presidents Day) holiday. However, some facilities are open and schedules vary. For specific schedule information visit our holiday schedule Web page.
Posted at 2:45 p.m.
h…love is in the air. Valentine’s Day is almost here — Sunday guys in case you’ve forgotten the flowers and chocolates!
Not only is this weekend the time for love though, but brutally cold temperatures along with another chance of snow are in the forecast making this weekend one full of a variety of winter weather conditions.
First, let’s start with today. Snow chances actually start tonight. The National Weather Service (NWS) says there’s a chance of a small amount of snow accumulation tonight, anywhere from 1-2 inches possible between 6-11 p.m.
The Virginia Department of Transportation (VDOT) is encouraging motorists to finish trips by early afternoon and to use extreme caution during the evening rush hour. With below-freezing temperatures in place and snow showers expected, VDOT reports that they will have 1,150 trucks deployed across the region to continually treat roads.
A hazardous weather outlook has been issued as well as a winter weather advisory from 6 p.m. to midnight. In addition, a wind advisory is in effect tomorrow from 3 a.m. to 6 p.m. A wind advisory means that wind gusts of 45 to 55 mph are expected. You’ll want to secure any outdoor furniture and take care driving high profile vehicles such as vans and SUVs.
Saturday and Sunday
NWS reports that wind chill values below minus five degrees are likely Saturday night into Sunday morning. There also is an enhanced threat of a winter storm late Sunday night through Monday night.
Snow is likely overnight Sunday night (60 percent chance) with a low around 18 and into Monday (70 percent chance) with a high only near 32. Snow is expected until about 8 p.m. before turning to rain and snow.
Monday is the President’s Day Holiday for many — including Fairfax County Government — so hopefully that will decrease the number of cars that have to be on the roadways. Just remember … if you don’t have to be out in the inclement weather, don’t. Allow road crews the opportunity to do their jobs.
Keep an Eye on Others
This weekend, be sure to check on your elderly neighbors and help those who may need special assistance, including people with disabilities and children. And if you see someone at night who is unsheltered and you think could be at risk of hypothermia, call the county’s non-emergency phone line at 703-691-2131, TTY 711.
Pets, even those who typically live outdoors, should be brought inside; only take your pet outside for short bathroom breaks and do not leave your pet outdoors unattended. Also, make sure to provide access to non-frozen drinking water at all times.