Surface Synoptic Observations Surface Observations o o 000

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Surface Synoptic Observations

Surface Synoptic Observations

Surface Observations o o 000 Group - Identification and Location – ﺗﺤﺪﻳﺪ ﺍﻟﻬﻮﻳﺔ ﻭﺍﻟﻤﻮﻗﻊ

Surface Observations o o 000 Group - Identification and Location – ﺗﺤﺪﻳﺪ ﺍﻟﻬﻮﻳﺔ ﻭﺍﻟﻤﻮﻗﻊ 000 ﻣﺠﻤﻮﻋﺔ 111 Group - Land Observations ﺍﻷﺮﺍﺿﻲ ﺍﻟﺮﺻﺪ - 111 ﻣﺠﻤﻮﻋﺔ 222 Group - Sea Surface Observations ﺍﻟﺮﺻﺪ ﺍﻟﺒﺤﺮﻱ - 222 ﻣﺠﻤﻮﻋﺔ 333 Group - Climatological Data – ﺍﻟﺒﻴﺎﻧﺎﺕ ﺍﻟﻤﻨﺎﺧﻴﺔ 333 ﻣﺠﻤﻮﻋﺔ o o

� IIiii or IIIII YYGGi 99 LLL QLLLL � iih. VV Nddff 00 fff

� IIiii or IIIII YYGGi 99 LLL QLLLL � iih. VV Nddff 00 fff 1 s. TTT 2 s. TTT 3 PPPP 4 PPPP 5 appp 6 RRRt 7 ww. WW 8 Nh. CCC 9 GGgg � 222 Dv 0 s. TTT 1 PPHH 2 PPHH 3 dddd 4 PPHH 5 PPHH 6 IEER 70 HHH 8 a. TTT � 333 0. . 1 s. TTT 2 s. TTT 3 Ejjj 4 Esss 5 jjjjj 6 RRRt 7 RRRR 8 Nchh 9 SSss

111 Group - Land Observations iih. VV Nddff 00 fff 1 s. TTT 2

111 Group - Land Observations iih. VV Nddff 00 fff 1 s. TTT 2 s. TTT 3 PPPP 4 PPPP 5 appp 6 RRRt 7 ww. WW 8 Nh. CCC 9 GGgg � i. Ri. Xh. VV i. R -- Precipitation indicator ix -- Station type and present and past weather indicator h -- Cloud base of lowest cloud seen (meters above ground) VV -- Visibility � Nddff N -- Total cloud cover dd -- wind direction in 10 s of degrees ff -- wind speed in units determined by wind type indicator � 00 fff (optional) fff -- wind speed if value greater than 100 � 1 s. TTT – Temperature s -- sign of temperature (0=positive, 1=negative) TTT -- Temperature in. 1 C � 2 s. Td. Td – Dewpoint s -- sign of temperature (0=positive, 1=negative, 9 = RH) Td. Td -- Dewpoint temperature in. 1 C (if sign is 9, TTT is relative humidity)

ix -- Station type and present and past weather indicator 1 -- manned station

ix -- Station type and present and past weather indicator 1 -- manned station -- weather group included 2 -- manned station -- omitted, no significant weather 3 -- manned station -- omitted, no weather observation 4 -- automated station -- weather group included (see automated weather codes 4677 and 4561) 5 -- automated station -- omitted, no significant weather 6 -- automated station -- omitted, no weather observation 7 -- automated station -- weather group included (see automated weather codes 4680 and 4531)

 ﺍﺭﺗﻔﺎﻉ ﻗﺎﻋﺪﺓ ﺍﻟﺴﺤﺐ h -- Cloud base of lowest cloud seen (meters above

ﺍﺭﺗﻔﺎﻉ ﻗﺎﻋﺪﺓ ﺍﻟﺴﺤﺐ h -- Cloud base of lowest cloud seen (meters above ground) h ﺭﻗﻢ ﻳﺸﻴﺮ ﺍﻟﻰ ﺍﺭﺗﻔﺎﻉ ﻗﺎﻋﺪﺓ ﺃﺨﻔﺾ ﺳﺤﺐ ﻓﻮﻕ ﺍﻟﺴﻄﺢ ﺣﺴﺐ ﺍﻟﺠﺪﻭﻝ meters above ground ﻗﺎﻋﺪﺓ ﺍﻟﺴﺤﺎﺏ ﺑﺎﻟﻤﺘﺮ ﺭﻗﻢ ﺍﻟﺸﻔﺮﺓ 0 to 50 m 0 -50 0 50 to 100 m 50 -100 1 100 to 200 m 100 -200 2 200 to 300 m 200 -300 3 300 to 600 m 300 -600 4 600 to 1000 m 600 -1000 5 1000 to 1500 m 1000 -1500 6 1500 to 2000 m 1500 -2000 7 2000 to 2500 m 1500 -2000 8 above 2500 m 2500 < 9