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Tropical Center

Excessive Heat Warning


Event Continued Expired

Start Time

Thu 07/18/2019 03:04 AM EDT

End Time

Sun 07/21/2019 10:00 PM EDT




High impact

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Mount Holly NJ 304 AM EDT Thu Jul 18 2019 DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-182100- /O.CON.KPHI.EH.W.0002.000000T0000Z-190722T0200Z/ New Castle-Mercer-Gloucester-Camden-Northwestern Burlington- Delaware-Philadelphia-Eastern Chester-Eastern Montgomery- Lower Bucks- Including the cities of Wilmington, Trenton, Glassboro, Camden, Cherry Hill, Moorestown, Mount Holly, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 304 AM EDT Thu Jul 18 2019 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM EDT SUNDAY... * HEAT INDEX VALUES...Near 100 this afternoon, 102 to 107 on Friday afternoon, 107 to 112 on Saturday afternoon, and 104 to 109 on Sunday afternoon. * TEMPERATURES...Maximum readings near 90 this afternoon, in the middle and upper 90s on Friday afternoon, near 100 on Saturday afternoon, and in the upper 90s on Sunday afternoon. Overnight lows will range mainly from the middle 70s to the lower 80s. * TIMING...The most dangerous of the heat and humidity will occur from mid afternoon into the early evening each day. * IMPACTS...The excessive heat and humidity may cause heat stress or heat stroke. The most susceptible individuals are the elderly and those with pre-existing health issues. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to the early morning or the late evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing. Drink plenty of water. To reduce your risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in a shaded or air conditioned environment. Anyone overcome by heat should be moved to a cool shaded location. Heat stroke is an emergency, call 9 1 1. An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will create a DANGEROUS SITUATION. Stay in an air-conditioned environment, stay out of the sun, and check on elderly relatives and neighbors. Young children and pets should never be left unattended in a vehicle under any circumstance. This is especially true during hot weather when a car's interior can reach lethal temperatures in a matter of minutes. &&