Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Hazardous Weather Conditions

Flash Flood Warning until August 17, 03:30 AM EDT

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Rain Fog/Mist

70°F

21°C

Humidity	90%
Wind Speed	E 6 mph
Barometer	29.89 in (1012.3 mb)
Dewpoint	67°F (19°C)
Visibility	4.00 mi
Last update	17 Aug 12:54 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Upland PA

Flash Flood Warning August 17, 01:36am until August 17, 03:30am

Click here for hazard details and duration

Flash Flood Warning

Flash Flood Warning August 17, 01:36am until August 17, 03:30am
NOW until 3:30am Mon
Flash Flood Warning
Overnight
Low: 69 °F
Showers
Monday
High: 88 °F
Chance
Showers then
Mostly Sunny
Monday Night
Low: 71 °F
Partly Cloudy
Tuesday
High: 87 °F
Sunny
Tuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 89 °F
Sunny
Wednesday Night
Low: 71 °F
Partly Cloudy
Thursday
High: 86 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

Overnight

Showers likely and possibly a thunderstorm, then showers after 2am. Low around 69. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

A chance of showers before 8am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 88. Northwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm.

Tuesday

Sunny, with a high near 87. North wind around 5 mph.

Tuesday Night

Mostly clear, with a low around 68. Northwest wind around 5 mph becoming calm.

Wednesday

Sunny, with a high near 89.

Wednesday Night

Partly cloudy, with a low around 71.

Thursday

A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

Thursday Night

Showers likely before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Friday

Partly sunny, with a high near 84.

Friday Night

Mostly cloudy, with a low around 66.

Saturday

Partly sunny, with a high near 83.

Saturday Night

Mostly cloudy, with a low around 66.

Sunday

A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.