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Extreme Heat Watch

EXTREME HEAT WATCH IN EFFECT FROM SUNDAY MORNING THROUGH WEDNESDAY EVENING

WHAT:
Dangerously hot conditions with heat index values over 105 possible.

WHERE:
A portion of central Pennsylvania east of I-99 and south of I-80.

WHEN:
From Sunday morning through Wednesday evening.

IMPACTS:
Heat related illnesses increase significantly during extreme heat and high humidity events.

ADDITIONAL DETAILS:
Heat index values and the associated risk of heat-related impacts will be highest on Monday and Tuesday.

Updated: 
June 20, 2025 at 03:42 EDT
Event Onset: 
June 22, 2025 at 11:00 EDT
Event End: 
June 25, 2025 at 20:00 EDT
Severity: 
Severe
Urgency: 
Future
Certainty: 
Likely
Issued By: 
NWS State College PA
Area(s): 
Adams
Columbia
Cumberland
Dauphin
Franklin
Fulton
Huntingdon
Juniata
Lancaster
Lebanon
Mifflin
Montour
Northumberland
Perry
Schuylkill
Snyder
Southern Centre
Southern Clinton
Southern Lycoming
Union
York