National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorm and Flash Flood Threats Early This Week

The threat for severe thunderstorms and flash flooding are likely from the central and southern Plains into the Ohio/Tennessee Valleys and Mid-Atlantic early this week. A couple of slow moving systems will track west to east, while a plume of moisture focuses near a stalled front. Some of the thunderstorms could contain damaging winds and large hail, while flood watches extend from MO/IL to DE/NJ. Read More >

Hazardous Weather Conditions

Current conditions at

York, York Airport (KTHV)

Lat: 39.92°NLon: 76.88°WElev: 479ft.

Overcast

76°F

24°C

Humidity 72%
Wind Speed NW 7 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Jun 4:53 pm EDT
Extended Forecast for

Grantley PA

Flash Flood Watch until June 19, 02:00am
Click here for hazard details and duration
Flash Flood Watch
  •  
    Flash Flood Watch until June 19, 02:00am

    NOW until
    2:00am Wed

    Flash Flood Watch

  • This
    Afternoon

    This Afternoon: Showers and thunderstorms. Some of the storms could produce gusty winds and heavy rain. High near 79. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain

    High: 79 °F

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am, then showers likely and possibly a thunderstorm after 2am. Some of the storms could produce gusty winds and heavy rain. Low around 67. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Heavy Rain

    Low: 67 °F

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rain. Cloudy, with a high near 80. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    High: 80 °F

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms
    Likely then
    Showers
    Likely

    Low: 68 °F

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after 8am. High near 80. Light southwest wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Showers

    High: 80 °F

  • Wednesday
    Night

    Wednesday Night: Showers, mainly before 8pm. Low around 68. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Showers then
    Chance
    Showers

    Low: 68 °F

  • Thursday

    Thursday: Rain likely, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 80%.

    Showers

    High: 81 °F

  • Thursday
    Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 66. Chance of precipitation is 80%.

    Showers

    Low: 66 °F

Detailed Forecast

This Afternoon
Showers and thunderstorms. Some of the storms could produce gusty winds and heavy rain. High near 79. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before 2am, then showers likely and possibly a thunderstorm after 2am. Some of the storms could produce gusty winds and heavy rain. Low around 67. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rain. Cloudy, with a high near 80. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 8am. High near 80. Light southwest wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers, mainly before 8pm. Low around 68. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 66. Chance of precipitation is 80%.
Friday
A chance of showers before 8am. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Monday
A chance of showers. Partly sunny, with a high near 83.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Grantley PA
 39.93°N 76.73°W (Elev. 673 ft)
Last Update:
4:19 pm EDT Jun 17, 2019
Forecast Valid:
5pm EDT Jun 17, 2019-6pm EDT Jun 24, 2019
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation