National Weather Service United States Department of Commerce

Heavy Rain and Potential for Flash Flooding for Mid-Atlantic

An unseasonably strong storm system will bring heavy rain to the Mid-Atlantic and central Appalachians Friday into Saturday. Flash flooding and widespread lowland flooding are possible during this period. Meanwhile, monsoon moisture will continue to produce heavy rain with the possibility of localized flash flooding in the Desert Southwest through the southern/central Rockies and High Plains. Read More >

Station     PAFC     Elevation  144 FT
Fri Jul 28 14:20:02 UTC 2017

Morning Vent Factor:

Temperature           59 Deg F
Mixing Depth MSL      165.3 m
Mixing Depth AGL      122.1 m
Transport Wind        3.60 m/s
Vent Factor           439

Forecast for Afternoon Vent Factor:

Temperature           61 Deg F
Mixing Depth MSL      259.2 m
Mixing Depth AGL      216 m
Transport Wind        3.60 m/s
Vent Factor           777

 Vent Factor is considered a measure of the volume rate of horizontal transport of air within the mixing layer, per unit distance, normal to the wind. Units are measured in square meters per second or knot-feet.