Definition |
Contraction |
Usage |
|
hail (greater than 3/4") |
GR |
METAR |
|
hail showers |
SHGR |
METAR |
|
hail showers (small) |
SHGS |
METAR |
|
hailstones |
HLSTO |
NWS |
|
half |
HLF |
GEN |
|
handoff point |
HOP |
ATC |
|
handover word |
HOW |
ATC |
|
hangar |
HNGR |
GEN |
|
hard freeze |
HDFRZ |
NWS |
|
Hawaiian Air Defense Division |
HADD |
GEN |
|
Hawaiian Air Defense Identification Zone |
HADIZ |
GEN |
|
Hawaiian Air National Guard |
HANG |
GEN |
|
Hawaiian Defense Area |
HADA |
GEN |
|
hazard |
HAZ |
GEN |
|
hazard beacon |
HBN |
ICAO |
|
hazardous area reporting service |
HARS |
ATC |
|
hazardous inflight weather advisory service |
HIWAS |
GEN |
|
haze |
HZ |
METAR |
|
heading |
HDG |
ICAO |
|
headquarters |
HQ |
GEN |
|
headwind |
HDWND |
ATC |
|
heater |
HTR |
GEN |
|
heavy |
HVY |
GEN |
|
heavy (to qualify weather phenomena, e.g. XXRA - heavy rain) |
XX |
ICAO |
|
hectopascal |
HPA |
ICAO |
|
height |
HGT |
GEN |
|
height above airport |
HAA |
GEN |
|
height above landing |
HAL |
GEN |
|
height above touchdown |
HAT |
GEN |
|
helicopter |
HEL |
GEN |
|
helicopter operations |
HOP |
GEN |
|
heliport |
HELI |
GEN |
|
here |
ER |
ICAO |
|
here |
HR |
GEN |
|
hertz |
Hz |
GEN |
|
heterodyne |
HTN |
GEN |
|
high |
HI |
NWS |
|
high altitude balloon |
HIBAL |
GEN |
|
high and very high frequency direction finding stations |
HVDF |
ICAO |
|
high clouds visible |
HCVIS |
NWS |
|
high density traffic airport |
HDTA |
GEN |
|
high density traffic zones |
HDATZ |
ATC |
|
high frequency |
HF |
GEN |
|
high frequency direction finding station |
HDF |
ICAO |
|
high index |
HX |
NWS |
|
high intensity approach light system |
HIALS |
GEN |
|
high intensity runway lights |
HIRL |
GEN |
|
high level forecast |
HIFOR |
NWS |
|
high voltage |
HV |
GEN |
|
higher |
HYR |
ICAO |
|
highest temperature |
HITMP |
NWS |
|
highest temperature equaled for all time |
HIEAT |
NWS |
|
highest temperature equaled for the month |
HIEFM |
NWS |
|
highest temperature equaled so early |
HIESE |
NWS |
|
highest temperature equaled so late |
HIESL |
NWS |
|
highest temperature exceeded for all time |
HIXAT |
NWS |
|
highest temperature exceeded for the month |
HIXFM |
NWS |
|
highest temperature exceeded so early |
HIXSE |
NWS |
|
highest temperature exceeded so late |
HIXSL |
NWS |
|
highway |
HWY |
GEN |
|
hilltop |
HLTP |
NWS |
|
hold for release |
HFR |
ATC |
|
holding |
HLDG |
ICAO |
|
holding as previously instructed |
HAPI |
ATC |
|
holding pattern |
HP |
GEN |
|
holiday |
HOL |
GEN |
|
homing beacon |
HB |
ATC |
|
horizon |
HRZN |
GEN |
|
Horizontal Dilution of Precision |
HDOP |
ATC |
|
hospital aircraft |
HOSP |
ICAO |
|
hour |
HR |
GEN |
|
household effects |
HHE |
GEN |
|
how will arrival report be filed concerning |
HIRIV |
ATC |
|
however |
HWVR |
GEN |
|
Hudson Valley |
HDSVLY |
NWS |
|
hundred |
HND |
GEN |
|
hurricane |
HURCN |
NWS |
|
hurricane report |
HUREP |
NWS |
|
hydraulic |
HYD |
GEN |
|
hydrographic |
HYDRO |
GEN |