Weather Alert in Pennsylvania
Flood Warning issued July 14 at 4:24PM EDT until July 14 at 10:00PM EDT by NWS State College PA
AREAS AFFECTED: Clinton, PA; Columbia, PA; Lycoming, PA; Montour, PA; Northumberland, PA; Sullivan, PA; Union, PA
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall is occurring. * WHERE...A portion of central Pennsylvania, including the following counties, Clinton, Columbia, Lycoming, Montour, Northumberland, Sullivan and Union. * WHEN...Until 1000 PM EDT. * IMPACTS...Numerous roads remain closed due to flooding. Streams are rising again in many areas after a brief fall. Many locations in the warning area will have the water rise as high and even higher than it was earlier today. It will take several hours for all the water from these storms to work through local drainage systems in urban areas. * ADDITIONAL DETAILS... - At 421 PM EDT, gauge reports indicated heavy rain due to thunderstorms. Flooding is already occurring in the warned area. Between 1 and 7 inches of rain have fallen in the past 18 hours. - Additional rainfall amounts up to 1 inch are possible in the warned area. - Some locations that will experience flooding include... Williamsport, Milton, Montoursville, Jersey Shore, Muncy, Watsontown, Hughesville, Montgomery, Duboistown, New Columbia, Allenwood, Buckhorn, Jerseytown, Rohrsburg, Iola, Jamison City, Eyers Grove, Waller, Exchange and Delaware Run. - http://www.weather.gov/safety/flood
INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Stay away or be swept away. River banks and culverts can become unstable and unsafe. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
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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
Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
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