Feb23 Long-range

Forecast valid at 18Z on Feburary 27, 2011
102 hour forecast

Strong WAA ahead of an anticipated widespread precipitation event on Monday. Top image shows GEMPAK-calculated
temperature advection at 850 mb. Around Lafayette, temperature advection is about 2-4e-4 K/s. Hand-calculated temperature
advection over Lafayette, using the map at the bottom of the page yielded WAA at 2e-4 K/s.

Several hours of relatively strong WAA is one of the strong forces behind the heavy precipitation anticipated Sunday night
into Monday.