Weather Alerts for Pennsylvania
1. Air Quality Alert for: Dauphin; Lebanon; Cumberland; York; Lancaster
2. Extreme Cold Warning for: Carbon; Monroe
3. Extreme Cold Warning for: Clearfield; Northern Centre; Southern Centre; Cambria; Blair; Somerset; Bedford
4. Extreme Cold Warning for: Huntingdon; Fulton
5. Extreme Cold Warning for: Mercer; Venango; Forest; Butler; Clarion; Jefferson; Armstrong; Westmoreland Ridges; Fayette Ridges; Indiana; Higher Elevations of Indiana; Eastern Preston
6. Extreme Cold Warning for: Mifflin; Juniata; Franklin; Union; Snyder; Montour; Northumberland; Columbia; Perry; Dauphin; Schuylkill; Lebanon; Cumberland; Adams; York; Lancaster
7. Extreme Cold Warning for: Northern Clinton; Northern Lycoming; Sullivan; Southern Clinton; Southern Lycoming
8. Extreme Cold Warning for: Northern Erie; Southern Erie; Crawford
9. Extreme Cold Warning for: Warren; McKean; Potter; Elk; Cameron; Tioga
10. Extreme Cold Warning for: Wyoming; Lackawanna; Luzerne
11. Snow Squall Warning for: Allegheny, PA; Fayette, PA; Greene, PA; Indiana, PA; Washington, PA; Westmoreland, PA
12. Snow Squall Warning for: Cambria, PA; Somerset, PA
13. Special Weather Statement for: Cambria; Somerset; Bedford
14. Wind Advisory for: Carbon; Monroe
15. Wind Advisory for: Clearfield; Northern Centre; Southern Centre; Cambria; Blair; Somerset; Bedford
16. Wind Advisory for: Huntingdon; Fulton
17. Wind Advisory for: Mifflin; Juniata; Franklin; Union; Snyder; Montour; Northumberland; Columbia; Perry; Dauphin; Schuylkill; Lebanon; Cumberland; Adams; York; Lancaster
18. Wind Advisory for: Northern Clinton; Northern Lycoming; Sullivan; Southern Clinton; Southern Lycoming
19. Winter Weather Advisory for: Cambria; Somerset
20. Winter Weather Advisory for: Northern Erie; Southern Erie; Crawford
21. Winter Weather Advisory for: Westmoreland Ridges; Fayette Ridges; Higher Elevations of Indiana; Ridges of Eastern Monongalia and Northwestern Preston; Preston
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Weather Topic: What is Hail?
Home - Education - Precipitation - Hail
Next Topic: Hole Punch Clouds
Hail is a form of precipitation which is recognized by large solid balls or
clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind.
As the hailstones remain in the updraft, ice is deposited onto them until their
weight becomes heavy enough for them to fall to the earth's surface.
Hail storms can cause significant damage to crops, aircrafts, and man-made structures,
despite the fact that the duration is usually less than ten minutes.
Next Topic: Hole Punch Clouds
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Nimbostratus Clouds
A mammatus cloud is a cloud with a unique feature which resembles
a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly
in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form
under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds
warn that severe weather is close.
Next Topic: Nimbostratus Clouds
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