Dangerous Heat and Humidity Building from the Plains to the East Coast

A strengthening ridge of high pressure will produce much above average temperatures from the Plains to the East Coast, a true summer heat wave. Highs in the 90s and triple digits combined w/ humidity and dewpoints surging into the upper 70s, if not low 80s, will create heat indices as high as 110 to 115 through this weekend. Air quality will likely be poor due to haze and little air circulation.
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Hazardous Weather Conditions

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Philadelphia, PA Local Forecast Office

14NM W Atlantic City NJ

Marine Point Forecast

[NOTICE]
  • Overnight

    Severe Thunderstorms

    W 23km/hWinds Decreasing
    < 1m

    Low: 24 °C

  • Thursday

    Showers Likely

    SW 16km/h
    < 1m

    High: 31 °C

  • Thursday
    Night

    Chance Showers

    SW 11km/hWinds Decreasing
    < 1m

    Low: 23 °C

  • Friday

    Mostly Sunny

    Winds IncreasingSW 14km/h
    < 1m

    High: 35 °C

  • Friday
    Night

    Partly Cloudy

    WSW 11km/h
    < 1m

    Low: 25 °C

  • Saturday

    Sunny

    WSW 14km/h
    < 1m

    High: 37 °C

  • Saturday
    Night

    Mostly Clear

    WSW 11km/h
    < 1m

    Low: 25 °C

  • Sunday

    Mostly Sunny

    SW 10km/h
    < 1m

    High: 36 °C

  • Sunday
    Night

    Chance Thunderstorms

    WSW 11km/h
    < 1m

    Low: 24 °C


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:41 pm EDT Jul 17, 2019
Forecast Valid: 11pm EDT Jul 17, 2019-6pm EDT Jul 24, 2019

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Detailed Forecast


Synopsis: The remnants of former tropical cyclone Barry will continue to move across the area tonight through Thursday while a cold front slowly settles across the area as well. The front will finally push south of the area and wash out Thursday night. A lee side trough is forecast to develop across the east coast Friday and continue through the weekend. A couple of cold fronts move southward toward the area over the weekend, but never make it into the area, before a stronger cold front moves across the east coast Sunday night into Monday night.

Overnight
W wind 18 to 23 km/h becoming S 8 to 11 km/h after midnight. A chance of showers and thunderstorms. Some storms could be severe, with damaging winds and heavy rain. Patchy fog. Seas 1 m or less.
Thursday
SW wind 14 to 16 km/h. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11am. Seas 1 m or less.
Thursday Night
SW wind 6 to 11 km/h becoming variable and less than 5 km/h after midnight. A chance of showers and thunderstorms before 2am. Seas 1 m or less.
Friday
WNW wind 5 to 8 km/h becoming SW 11 to 14 km/h in the afternoon. Mostly sunny. Seas 1 m or less.
Friday Night
WSW wind 8 to 11 km/h. Partly cloudy. Seas 1 m or less.
Saturday
WSW wind 10 to 14 km/h. Sunny. Seas 1 m or less.
Saturday Night
WSW wind 8 to 11 km/h. Mostly clear. Seas 1 m or less.
Sunday
W wind 8 to 10 km/h becoming SW in the afternoon. Mostly sunny. Seas 1 m or less.
Sunday Night
WSW wind 8 to 11 km/h. A chance of showers and thunderstorms. Seas 1 m or less.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 39.37°N 74.72°W
Last Update: 9:41 pm EDT Jul 17, 2019
Forecast Valid: 11pm EDT Jul 17, 2019-6pm EDT Jul 24, 2019
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