Weather Alert in Pennsylvania
Heat Advisory issued June 22 at 3:28PM EDT until June 25 at 8:00PM EDT by NWS State College PA
AREAS AFFECTED: Mifflin; Juniata; Southern Lycoming; Union; Snyder; Montour; Northumberland; Columbia; Schuylkill
DESCRIPTION: * WHAT...For the first Heat Advisory, heat index values up to 105. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 107 expected. For the second Heat Advisory, heat index values up to 102 expected. * WHERE...Columbia, Juniata, Mifflin, Montour, Northumberland, Schuylkill, Snyder, Southern Lycoming, and Union Counties. * WHEN...For the first Heat Advisory, until 10 AM EDT Monday. For the Extreme Heat Warning, from 10 AM to 8 PM EDT Monday. For the second Heat Advisory, from 8 PM Monday to 8 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illness. * ADDITIONAL DETAILS...The highest heat index will occur in the urban valley locations. Temperatures in the 70s overnight will provide little if any relief.
INSTRUCTION: Drink plenty of fluids, stay out of the sun, and stay in an air-conditioned room. Check up on relatives and neighbors, and provide pets with adequate water and shelter from the sun. Extreme Heat can be life-threatening among at-risk populations, such as children, the elderly, and those with pre-existing health conditions.
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Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
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