Weather Alert in Pennsylvania
Flood Watch issued July 9 at 9:29AM EDT until July 10 at 2:00AM EDT by NWS Mount Holly NJ
AREAS AFFECTED: Berks; Lehigh; Northampton; Delaware; Philadelphia; Western Chester; Eastern Chester; Western Montgomery; Eastern Montgomery; Upper Bucks; Lower Bucks
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central and southeast Pennsylvania, including the following areas, in east central Pennsylvania, Berks, Lehigh and Northampton. In southeast Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From 5 PM EDT this afternoon through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Another round of showers and thunderstorms are expected late this afternoon and into tonight which could produce heavy rain. With an already saturated surface, it will not take much rainfall to result in flooding. Rainfall rates of around 2 to 3 inches per hour are possible. - http://www.weather.gov/safety/flood
INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Want more detail? Get the Complete 7 Day and Night Detailed Forecast!
Current U.S. National Radar--Current
The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).
National Weather Forecast--Current
The Current National Weather Forecast and National Weather Map are shown below.
National Weather Forecast for Tomorrow
Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.
North America Water Vapor (Moisture)
This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.
Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
Current conditions powered by WeatherAPI.com
