Met 3 Flashcards
1
Q
Cold fronts
A
Typically steep slope, 1.5 degrees not uncommon Before cold front -Winds south south west -Warm -Pressure falling steadily -Clouds, increasing cumulus, TCU and CB, formed as air expands as lifted -Precip short period of showers -Visibility fair to poor in haze -DP remains steady and high
2
Q
Cold As passes
A
Winds gusting and beer Temp sudden drop Pressure sharp rise Clouds CB Precip, heavy rain, thunder, and lightning Poor but improving DP sharp drop
3
Q
After cold
A
Becoming west to NW
Temp steadily dropping
Pressure rising steadily
Clouds - slow moving, warm air stable NS, AS, CI// fast moving, warm air unstable CU
Precip showers then clearing
Visibility good except for in the showers
DP lowering
4
Q
Warm front
A
Retreating edge of cold air mass Will override the cold air by frontal lift Shallow only 0.5 of a degree often Before warm front -winds S SE -temp cool to cold with slow warming -Pressure falling gradually -clouds in order cirrus, CS, AS, NS, S and sometimes FG (in summer when fast moving and warm air is unstable CB or TCU) -Light to moderate Precip -visibility poor -DP steady rise
5
Q
During warm
A
Winds variable and veers Temp steady rise Pressure leveling off Clouds stratus, NS Precip drizzle or none Visibility poor but improving DP steady
6
Q
After warm
A
Becoming S to SE winds Temp warm then steady Pressure slight rise followed by fall Clouds clearing with SC occasionally CB in summer Precip commonly none, sometimes - RASH visibility fair in haze DP rise then steady
7
Q
Thunderstorms lightning greatest risk
A
Greatest chance of lightning hit A/C is when temp is between -5 and 5
8
Q
Icing temps
A
Cumuliform 0-10
Stratiform -10 to -20
