Weather Alert in Pennsylvania
Flash Flood Warning issued July 31 at 1:49PM EDT until July 31 at 4:30PM EDT by NWS Mount Holly NJ
AREAS AFFECTED: Berks, PA
DESCRIPTION: At 149 PM EDT, Doppler radar indicated the thunderstorms that produced the heavy rain the last hour or two have moved east out of the warned area. Although the heaviest rain has come to end, we are still receiving reports of water rescues in the Reading area. Flash flooding is currently occurring. Additional thunderstorms and heavy rain are possible as we move into the evening. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage and low lying areas. Some locations that may experience flash flooding include... Reading, Wyomissing, Kutztown, Hamburg, Fleetwood, Sinking Spring, Laureldale, Womelsdorf, Wernersville, Robesonia, Leesport and Shoemakersville.
INSTRUCTION: Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
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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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