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St Louis County MO Office of Emergency Management
Monday June 25th, 2018 :: 03:36 p.m. CDT

Alert

Excessive Heat Watch until 10:00PM Friday

...EXCESSIVE HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY EVENING... The National Weather Service in Saint Louis has issued an Excessive Heat Watch, which is in effect from Thursday morning through Friday evening.

* TIMING...A heat wave will evolve beginning on Wednesday afternoon. The worse conditions and most intense heat will be from the late morning through the afternoon and into the evening on Thursday and Friday. Dangerous heat will likely persist through the weekend.

* HEAT INDEX VALUES...Up to 110 due to temperatures in the upper 90s, and dewpoints in the lower 70s.

* IMPACTS...The likely combination of hot temperatures and high humidity will lead to an increased risk of heat- related stress and illness. The very young, the elderly, those without air conditioning, and those participating in strenuous outdoor activities will be the most susceptible. Also, car interiors can reach lethal temperatures in a matter of minutes.

* AFFECTED AREAS: JEFFERSON ... LINCOLN ... ST. CHARLES ... ST. LOUIS ... ST. LOUIS CITY ... STE. GENEVIEVE

Instructions:

An Excessive Heat Watch is advanced notice that there is the potential for a prolonged period of hot temperatures and high humidity. This will create a dangerous situation in which heat- related illnesses are possible. Begin making preparations now, by making sure your air conditioning is in good working order or know where to go to stay cool.

Address/Location
St Louis County MO Office of Emergency Management
1150 Hanna Rd
Ballwin, MO 63021

Contact
Emergency: 9-1-1

Alert Details

Severity:
Moderate - Possible threat to life or property
Urgency:
Future - Responsive action SHOULD be taken in the near future
Certainty:
Possible (p <= ~50%)
Category:
Meteorological (inc. flood)
Event:
Excessive Heat Watch

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