Weather Alert in Pennsylvania

Recent Locations: Philadelphia, PA  
Current Alerts for Philadelphia, PA: Air Quality Alert

Heat Advisory issued July 29 at 1:34AM EDT until July 30 at 8:00PM EDT by NWS State College PA

AREAS AFFECTED: Southern Centre; Blair; Huntingdon; Mifflin; Juniata; Bedford; Fulton; Franklin; Southern Clinton; Southern Lycoming; Union; Snyder; Montour; Northumberland; Columbia; Perry; Dauphin; Schuylkill; Lebanon; Cumberland; Adams; York; Lancaster

DESCRIPTION: * WHAT...Heat index values up to 104 expected. * WHERE...A portion of central Pennsylvania. * WHEN...From 11 AM this morning to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...This level of heat affects anyone without effective cooling and/or adequate hydration. Heat-related impacts are likely in some health systems, heat-sensitive industries and infrastructure.

INSTRUCTION: Drink plenty of fluids, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during hot weather when car interiors can reach lethal temperatures in a matter of minutes. Once you park, STOP, LOOK, LOCK.

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Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Stratus Clouds Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds

Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Altocumulus Clouds Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds

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