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LAMP Probabilities and Thresholds for Flight Categories

LIFR IFR MVFR
Ceiling Height < 500 ft.     < 1000 ft.     ≤ 3000 ft.    
Conditional
Ceiling Height		 < 500 ft.     < 1000 ft.     ≤ 3000 ft.    
Visibility < 1 mi.     < 3 mi.     ≤ 5 mi.    
Conditional
Visibility		 < 1 mi.     < 3 mi.     ≤ 5 mi.    
Probability of Precip Occurrence    
Probability of Freezing     Prob. of Freezing or Snow    
-OR-

No station has been entered.

Bar graphs indicate the probability of selected flight category element. The color represents the difference (using 10% thresholds between categories) between the probability and the threshold required to make a categorical forecast. Solid black lines indicate the threshold value at each hour.

Note: To see the official LAMP categorical forecasts, please refer to the text bulletin.

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Page Last Modified: September 16 2024 15:31:37. UTC