Radiotelephone procedure Page: 58
85 p: diagrs., charts, formsView a full description of this book.
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ARMY AIR FORCES
APPENDIX I
SYMBOLS OF WEATHER REPORT
1. Weather element symbols.
Symbol Meaning Symbol Meaning
R- Light rain. AP- Light small hail.
R Moderate rain. AP Moderate small hail.
R+ Heavy rain. AP+ Heavy small hail.
S- Light snow. SP- Light snow pellets.
S Moderate snow. SP Moderate snow pellets.
S+ Heavy snow. SP+ Heavy snow pellets.
ZR- Light freezing rain. T Thunderstorm.
ZR Moderate freezing rain. T+ Heavy thunderstorm.
ZR+ Heavy freezing rain. SQ- Mild snow squall.
L- Light drizzle. SQ Moderate snow squall.
L Moderate drizzle. SQ + Severe snow squall.
L+ Heavy drizzle. RQ- Mild rain squall.
ZL- Light freezing drizzle. RQ Moderate rain squall.
ZL Moderate freezing drizzle. RQ+ Severe rain squall.
ZL+ Heavy freezing drizzle SW- Light snow showers.
E- Light sleet. SW Moderate snow showers.
E Moderate sleet. SW + Heavy snow showers.
E+ Heavy sleet. RW- Light rain showers.
A- Light hail. RW Moderate rain showers.
A Moderate hail. RW+ Heavy rain showers.
A+ Heavy hail.
NoTE.-The word "tornado" is always written out in full.
2. Obstruction to vision symbols.
Symbol Meaning Symbol Meaning
F- Damp haze. BS- Light blowing snow.
F- Light fog. BS Moderate blowing snow.
F Moderate fog. BS+ Thick blowing snow.
F+ Thick fog. GS- Light drifting snow.
FF Dense fog. GS Moderate drifting snow.
GF- Light ground fog. GS+ Thick drifting snow.
GF Moderate ground fog. BD- Light blowing dust.
GF+ Thick ground fog. BD Moderate blowing dust.
GFF Dense ground fog. BD+ Thick blowing dust.
H Hazy (dry haze). BN- Light blowing sand.
K- Light smoke. BN Moderate blowing sand.
K Moderate smoke. BN+ Thick blowing sand.
K+ Thick smoke. IF-- Light ice fog.
D- Light dust. IF Moderate ice fog.
D Moderate dust. IF+ Thick ice fog.
D+ Thick dust. IFF Dense ice fog.
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United States. War Department. Radiotelephone procedure, book, March 20, 1943; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc96658/m1/60/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.