On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Flash flood threat forecast from southwestern Texas to the Appalachians on Wednesday

Heavy rainfall will be possible along a frontal boundary that will extend from Maine to far southwestern Texas on Wednesday. Rainfall amounts of 2 to 4 inches will be possible with some locations seeing 5 to 6 inches especially across the southern Plains. Flash flooding will be possible mainly from southwestern Texas to the central Appalachians. Remember: Turn Around, Don't Drown.
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Current conditions at

Manassas, Manassas Regional Airport/Harry P. Davis Field (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

79°F

26°C

Humidity 79%
Wind Speed S 3 mph
Barometer 30.01 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 7 Jul 9:45 pm EDT
Extended Forecast for

3 Miles WSW Vint Hill Farms Station VA

  • Tonight

    Tonight: Partly cloudy, with a low around 71. Southwest wind around 6 mph.

    Partly Cloudy

    Low: 71 °F

  • Wednesday

    Wednesday: Scattered showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm.  Mostly cloudy, with a high near 88. Light southwest wind increasing to 5 to 9 mph in the morning.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Scattered
    Showers then
    T-storms
    Likely

    High: 88 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely before 9pm, then a slight chance of showers.  Patchy fog after 5am.  Otherwise, cloudy, with a low around 68. West wind 3 to 5 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely then
    Slight Chance
    Showers and
    Patchy Fog

    Low: 68 °F

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 2pm.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 89. Southwest wind 5 to 8 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms and
    Patchy Fog

    High: 89 °F

  • Thursday
    Night

    Thursday Night: A slight chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 69. West wind around 7 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 69 °F

  • Friday

    Friday: Mostly sunny, with a high near 84.

    Mostly Sunny

    High: 84 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 65.

    Partly Cloudy

    Low: 65 °F

  • Saturday

    Saturday: Partly sunny, with a high near 87.

    Partly Sunny

    High: 87 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 68.

    Mostly Cloudy

    Low: 68 °F

Detailed Forecast

Tonight
Partly cloudy, with a low around 71. Southwest wind around 6 mph.
Wednesday
Scattered showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Mostly cloudy, with a high near 88. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 9pm, then a slight chance of showers. Patchy fog after 5am. Otherwise, cloudy, with a low around 68. West wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 89. Southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. West wind around 7 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Partly sunny, with a high near 87.
Saturday Night
Mostly cloudy, with a low around 68.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.
  Click Map For Forecast
Point Forecast:
3 Miles WSW Vint Hill Farms Station VA
 38.73°N 77.71°W (Elev. 427 ft)
8:25 pm EDT Jul 7, 2015
10pm EDT Jul 7, 2015-6pm EDT Jul 14, 2015
 
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