The mean relative humidity in the middle troposphere (750 mb to 500 mb) for NAM FOUS. High values indicate the likelihood of middle and upper level clouds. In the example below, most of the period is likely to remain clear, as soon as the rain stops.
TTPTTR1R2R3 VVVLI PSDDFF HHT1T3T5
BOS//605860 00719 131410 56050504
06000818448 04209 091622 56080605
12008935114 00802 002126 59121210
18000773014 -1811 022828 55120804
24000743520 -0913 092924 49090400
30000643339 -2216 102818 48080300
36000624749 03318 112519 47080300
42000615956 -0318 112621 42050299