Surface Analysis Chart Flashcards
1
Q
what does a surface analysis chart show
A
pressure systems, isobars, fronts, airmass boundaries (e.g.dry lines) & station info (e.g. wind, temperature, sky coverage , precipitation)
2
Q
when are surface analysis charts issued
A
every 3 hours (6 in hawa’ii & tropical & oceanic regions)
3
Q
what is a Unified surface analysis chart
A
issued every 6 hours & combines the analysis from the 4 centers (OPC, WPC, NHC & HFO)
