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63
TCCS 25:2019/CHK
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TROPICAL CYCLONE ADVISORY
DTC 20050922112007 PALMA!
. TULIET7E NR. 22 PSN; N2150 55,558 S00 MOV: W I 2KT C 945 .1PA MAX MND 1 20ICY RME NA NXT ACIASORY. 200.50922i 1 6002
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1060.11 MAX 1,1,,ID 22510
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211130/ AX WIND 13581
TCCS 25:2019/CHK
Tv yin bao nhiOt OA clang d6 hoa
Miu A9
F1150/300
Tv yin 1/4 tro byi nui lira dang d6 hoa
23'0100Z
1401f 1501T 1E41 1701 '130
Miu A10
'F1200
65
YUCC 5IGMET 83
VALID 152320,160300 YUDO
OBS 2100Z
BDRY of FRQ CB
25
I .
OZ . ^
21Z 1. A • -
I 4
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CB TOP FL 450
Kompasu NW 8KT INTSF
24'
234
22
21'
20'
19
B-
17
16-
IS
14
2Z
21
' 18
17-
16*
15'
----- 14- ,,
TCCS 25:2019/CHK
SIGMET v6• bao nhiOt clad clang do hoa Miu All
07° 108' 109" 110" 111 112 1 3 114 '15 116 1'7 118 119 120
107° 108' 109' 110' 111' 112' 113' 114 ' 15 116 117 118' 119' 120'
66
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YV
LZ A %,AIE01 1t
ALD0406141200Mit VA CID OBS SK/gt120 MOV NEM a
TCCS 25:2019/CHK
SIGMET y4 may tro nui lira clang d6 hoa
Mau Al2
430"
+SS
67
VA
LID
022010; 0
WO
U ) 1
.4%. 14
..
YM
MM
SIGM
IT
/
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TCCS 25:2019/CHK
SIGMET ye hien tu'o'ng thol bet nguy hiem khong phai bao Mau A13 nhiet do'i hay tro bui ntii Iu'a clang do hoa
68
TCCS 25:2019/CHK
PHU LI)C B: Bang you cau do chinh xac do dac vaquan trk cac y6u to khi tuvng
(Quy dinh)
Y6u to quan trAc Pham vi sai so cho phep
Gio b6 mat Huang: ± 10°
Toc cIO: ff 1 + 10 kt: ± 0.5 m/s (1 kt)
ff > 10 kt: ±10%
VIS 01 + 600 m: ± 50 m
600 +1 500 m: ± 10%
>1 500 m: ± 20%
RVR 01 + 400 m: ± 10 m
400 m + 800 m: ± 25 m
> 800 m: ±10%
Lucyng may ± 1/8
DO cao chan may 10 m (33 ft) + 100 m (330 ft): ± 10 m
> 100 m (330 ft): ± 10%
NhiOt clO/nhiOt dO di6m arang
± 1°C
Khi ap ± 0.5 hPa
69
TCCS 25:2019/CHK
PHU LUC C: (Quy dinh) Bang yeti cAu 'TO chinh xac bao cac y6u to khi tuvng, hi§n tuyng thoi trot san bay (TAF, TREND)
Y6u to thy bao Sai so du, bac chAp nh*an duvc
xac suat % dung (tren
tong so rnau/ban tin)
TAF
HuOng gi6 ± 20° 80%
Toc do giO ± 2.5 m/s (5 kt) 80%
Tam nhin ngang 0 m ÷ 800 m: ± 200 m
800 m ÷ 5 km: ± 30% 80%
May CB/ clang (TS) Dv bac xuat hian (hoac tan ra, khong con xay ra)
80%
Giang they vt:ra hoac manh
Du bac xua't hian (hoac tan, khang con xay ra) 80%
Luang may + 01 cap khi do cao may ducal 450 m (1500 ft)
+ Xuat hian hoac khang xu6t hian lOp may BKN hoac OVC vol do cao tiy 450 m — 3000 m
70%
Da cao chan may Tir 00 ÷ 300 m: ± 30 m
TO' 300 m ± 3000 m: ± 30% 70%
TREND
Huang gio ± 20° 90%
T6c do gio ± 2.5 m/s (5 kt) 90%
Tam nhin ngang 0 m ÷ 800 m: ± 200 m
800 m ÷ 5 km: ± 30% 90%
May CB/ dang (TS) Xuat hian (hoac tan ra, kh6ng con xay ra) 90%
Giang thiq vira hoac manh
Xuat hian (hoac tan, khang con xay ra) 90%
Luang may + 01 cap khi (la cao may cltthi 450 m (1500 ft)
+ Xuat hian hoac kh6ng xuAt hian lOp may BKN hoac OVC voii do cao tCr 450 m ÷ 3000 m
90%
Da cao chan may TCr 00 ÷ 300 m: ± 30 m
Ti' 300 m ÷ 3000 m: ± 30% 90%
70
k-
TCCS 25:2019/CHK
PHU LVC D: (Quy dinh) Cac tieu chi ap dung cho quan trAc va bao cao theyi ti6t san bay
GO be mat Tam nhln ngang (ViS)
RVR1
A B C
Thai bet hien
tai May tin b6-10' Nhiet
dO Kh ap
Thong
sung -5' (t quan trac)
Chi tiOt
Dao d6ng Wang gi63 Dao d6ng
ye van tee
Dao (Tang giCra cac hulang4 Xu Wang MAT C165
chi cu the theo Phu
vac 3. Tab lieu DOC 8896 ICAO
va Hwang
den ciia Cuc
HKVN
Wang ("N")c6
Luang may Loai may'
co tieu chi cu the
luon da kh ,
Cac thong s6 bao
cao
Cap nhat neu
bien d6 thay di Ian han gia trj quy djnh
Cac thong s6 bao g6m
2 60° va < 180° z 180°
Ian han 10 kt
hoac hem so vai t6c
150 gib
trung binh
biet; VIS nh6 nhat khac Net vai VIS thjnh hanh
Cac twang hap dac Tieu I k-SitM - ' '.7 s:.$2c)1
Lap may thap nhat
Lap tiep theo
bap cao han tier) theo
CB6 hoac TCU6
Loai may duvc bao
cao
Van t6c trung binh Quy tat c chung
VIS nho nhat < 1500 m hoac < % VIS thjnh hanh va < 5000m
VIS bien CI& qua nhanh, khong the sac djnh VIS thjnh hanh
< 100 m < 100 m
< 3 kt s 3 kt
MET REPORT/ SPECIAL
2/10 phut
2/10 ()hilt
2 phut 10 phut 1 phut Khong Al) dung
KhOng ap dung 1 phut
Lu6n lam
> 2/8 > 4/8 LuOn luOn
co
QNH QFEl°
Co Tat ca" 'Van toc nh6 nhat va Ian nhat
VIS (Jac &Yang CHC khi
KhOng ap dung9 7 VRB + 2 twang cix trj
71-ivang TB + 2 hmang cac trj
VRB (kheng co hirang ci.rc tri)
METAR/ 10 phut 10 phOt SPEC! hanh, 10 pi-16f 10 phut 10 phut
VIS thjnh VIS
VIS nho nhat 10 phut
Xu haang tang ("U"),
LuOn lam
> 2/8 > 4/8 LuOn
i
QNH Kh6ng thai bet nguy hien)
xay gi6 ra
ch:42
VRB (khong CO hvang cut trj)
hirang TB + 2 twang cut VI
VRB (khOng co hulang cu,c trj)
' Van t6c Ian nhat
VIS thjnh hanh
nhO nhat + twang Khong quan
trac duvc xu
Om CD")
KhOng CO xu hubng cu the, b6 qua bao xu haang.
Cac nguyen tec lien quan khac bp dung chung
Huang gio ducec ma Ilea bang 3 chili, s6, birdec 10 de, lam Von den bulfrc gan nhat
Tec de gib bao
theo boat 1 kt Gib nh6 hart 1kt
bao CALM
btrerc Ap dung VIS < 800 m : 50 m 800 m s VIS < 5 000 m 100 m 5 000 m s VIS < 10 km: 1 km VIS Z 10 km : bao cao
10 km hoac thubc trulang hap CAVOK
buds Ap dung
RVR < 400 m 25 m 400 m 5 RVR s 800 m : 50 m 800 m < RVR < 2 000 m 100
m13
bubo ap dung Base s 3 000 m (10 000 ft) . 30 m (100 ft)
Mirc tham chieu: DO cao san bay" hoac mktc nutfc bien trung binh nett la ceu tnic trail bien
Lam Iron
den d6 nguyen
ghn What (=0.5 lam tron len)
lam Iran xu6ng so hPa15 char' gen
nhat
KhOng ap
dung
GHI CHU: 1. Dirac tinh trong 10 phut gan nhat (ngoai trir: neu trong khoang thai gian 10 phut co sky gian down r5 rat, nghia la khi co Su, thay dOi d5t ng5t va duy trj trong khoang thai gian it nhat 2 phut cua RVR, trong do RVR dat va mat qua 175, 300, 550 hoac 800 m, thi chi dip lieu sau khi gian down duvc sit' dung de tinh). MOt sa do quy irac dan gian duqc siv dung de minh hoa cat phan cua khoang thai gian 10 phOt tarac trial diem quan tr5c (AB, BC va AC) cloi vai RVR nhu, trong bang.
2. Lap may bao gOm Ca CB va TCU co sung dO cao chap may may thi loci may duvc bao cao gOp chung la CB.
71
TCCS 25:20191CHK
3. Duvc tinh trong 10 phut gan nhat(ngoai neu trong khoang thai gian 10 phOt co su, gian down ro ret, nghia la xay ra su' thay dOi cl6t ng6t va duy tri trong khoang thai gian it nhat 2 phCit cua cac dac tinh gi6, trong dO hu'ang gi6 thay dOi tii 30 d6 (°) trey len vai toc dq giO truac hoac sau khi thay 10 kt (5 m/s), hoac tOc dO gi6 thay d6i 10 kt (5 m/s), thi chi du, lieu sau khi gian down duvc sir dung de tinh).
4. Neu quan Vac cluvc a nhieu huang thi sir dung huang quan trong nhat cho hoat d6ng khai thac.
5. R5(AB) = gia trj RVR trung binh 5 phiA trong khoang thai gian AB (tir 10 phut tuft den 5 phut truac thai diem quan trac) va R5(AB)= gia trj RVR trung binh 5 phOt trong khoang thai gian BC (till, 5 phitt truac den thai diem quan frac).
6. CB (cumulonimbus) va TCU (towering cumulus) neu chu'a duvc chi ra a mOt trong cac lap khac.
7. Thal gian tinh trung binh (c16i vai cac gia trj trung binh); va trong twang hqp c6 the thi bieu thi khoang thai gian xay ra cac gia tri ci,rc trj a gem tren ben trai.
8. Theo Tai lieu WMO-No.306, Tap 1.1, 15.5.5 Phan A, cac he thong do lu'ang duvc khuyen cao de tOc dO gi6 giat bleu thi gia trj trung binh 3 giay cua tOo dO gio tirc thai.
9. N/A = khong ap dung.
10. QFE se duvc bao cao neu can thiet. DO cao tham chieu cho QFE phai la mu,c cao san bay ngoai trir du'ang CHC tiep can chinh xac va duang CHC tiep can kh6ng chinh xac vai MCFC cao cua ngua,ng du'ang CHC 2 m (7 ft) that° hen hoac cao hen mire cao san bay.
11. Theo quy dinh doi vai nh6m thong bao phu cua MET REPORT/SPECIAL.
12. Ngoai ra co the bao gOm nhiet dO mat bien, trong thai cua bien hoac do cao song (theo th6a thuan hang khong khu \Arc).
13. Bac) cao neu RVR va/hoac VIS <1 500 m, giai flan duai va giai hen tren do' vai vi'ec bao cao RVR la 50 va 2000 m.
14. Phuc V1,1 ha canh tai san bay co duang bang tiep can chinh xac varnirc cao ngu'ang duang CHC dual dO cao san bay 15 m, mirc cao nguang du'ang CHC duvc sir dung lam min tham chieu.
15. Do khi Op theo phan mural (0,1) hPa.
(Theo Phy dinh C Phu Lien 3 ICAO - ATTACHMENT C. Selected criteria applicable to aerodrome reports).
72
TCCS 25:2019/CHK
PHU LUG E: (Quy Binh) MAU BANG TOM TAT KHi HAU SAN BAY
BANG TOM TAT KHi HAU SAN BAY
T6ng hap torn tat so Iieu trung binh khi hau cho tcvng thang trong nam
San bay:
Thal gian thong ke: TO' nam 20 den nam 20.. Tong so On quan trac.
VT db: Kinh clO: DO* cao tren mt,.pc bien: (m)
-e)
MAU E
CAC DAI LUVNG KO TU'Q'NG
Dan vi •
S6 LIEU TRUNG BINH THEO CAC THANG Ghi chn
Than 1
Than 2
Than 3
Than 4
Thing 5
Than 6
Tilling 7
Tilling 8
Than 9
Than 10
Than 11
Thang 12
1. KhI ap mb
2. Nhietd6 °C
2.1. Nhiet d6 trung 'Dinh °C
2.3. Ccrc dai tuyet d6i °C
2.4. Ccrc tieu tuyOt dOi °C
3. D6 Om tuvng dOi %
4. Gib be mat theo 16
hutyng la ban
4.1 Hir&ng gib thinh hanh theo 16
hu6ng la ban
4.2 T6c d0 06 trung binh kt
4.3 TOc d0 gi6 max kt
5. SO ngay CO styang MO ngay
6. 56 ngay CO mu ngay
7. SO ngay CO giang thiiy (mu'a, miya rao, mu'a phOn..)
ngay
73
TCCS 25:2019/CHK
8. SO ngay CO dOng ngay
9. SO ngay cO may TCU, CB ngay
10. SO ngay CO tam nhin <= 60 m (hOOC u'u tien mCrc tieu chuen t6i thi6u sin bay neu c6 the lip thOng ice)
ngay
11. SO ngay CO tran may <= 800 m
(hoic u'u tien mCpc tieu chAn rdi thgu sin bay n6u c6 the lip thong Ice)
ngay
74
TCCS 25:2019/CHK
PHU LUC G: (Tham khao) MAU BANG TOM TAT KHI HAU SAN BAY
BANG TOM TAT KHI HAU SAN BAY
MAU G1
Tin suit xay ra (%) hverng va t6c do gio thuO'c nhu'ng khoang gia tri cu the cho thang cu the trong nam
San bay: Dvong CHC: Thing:
Thai gian thong Ice: Tir nam 20.. Ten nam 20.. Tang so Ian quan Wag.
Vi c1O - Kinh do. DO cao tren mu'c bi6n - (m)
Huikng gio
TOC DO GIO (KT)
Lang '
Gia, 1 -5 6-10 11-15 16-20 21-25 26-30 31 -35 36-40 41-45 46-50 >50
Tong , -
so
Lang gib
35-36-01
02-03-04
05-06-07
08-09-10
11-12-13
14-15-16
17-18-19
20-21-22
23-24-25
26-27-28
29-30-31
32-33-34
Ghi Th6ng ke tin suit (%) s6 tAn (obs) xay ra h&&ng/ toc do gi6 thu6c cac khoang gia tri tucng ung tre'n tong so tat ca cac obs quan trcic coa thang thong ke trong town b6 thai gian th6ng ke (VD: Tat ca cac obs ctia thang 6 cOa 5 nam th6ng ke khl hau).
75k—
TCCS 25:2019/CHK
BANG TOM TAT KHI HAU SAN BAY MAU G2
Tin suat xay ra (%) tam nhin ngang thAp chkei cac gia tri cu th6 tai cac theri di6rn trong ngay cua thang Cu the trong nam
San bay: OL.reyng CHC: Thang:
Thdi gian thong ke: 111, nam 20.. den nam 20.. TOng s6 Ian quan trac.
Vi db. Kinh db. CO cao tren mu'c bien• (m)
Thai gian
(UTC)
TAM NHIN NGANG KHi TU'gNG Ghi chu
< 200 < 600 (*) <800 (*) <1000 <1100 (*) <1500 < 3000
00 - 01
01 - 02
02 - 03
...
...
22 - 23
23 - 00
Ghi chtj
(*) Co the: thay the bang cac ngueing chua:n hoac cac ngcrOng khai thac san bay
76
TCCS 25:2019/CHK
BANG TOM TAT KHi HAU SAN BAY
MAU G3
Tin suit xay ra (%) tran may (ceiling) the!) &poi cac gia tri cy the tai cac thol diem trong ngay cua thing Cu the trong nam
San bay: Dt_rOmg CHC: Thing:
Thai gian thong Ice: TO' nam 20.. den nam 20.. T6ng so 16n quan tr6c.
Vi Kinh do DO cao tren mu'c bien (m)
Tho'i gian
(UTC)
TRAN MAY Ghi chu
< 30 (100 ft)
< 60 (*) (200 ft)
<90 (*) (300 ft)
<150 (*) (500 ft)
<300 (1000 ft)
00 - 01
01 -02
02 - 03
22 - 23
23 - 00
Ghi chu
(*) C6 the thay the bang cac ngtiong chuan hoac cac ngtrang khai thac san bay
77
TCCS 25:2019/CHK
BANG TOM TAT KHI HAU SAN BAY
MAU G4
Tin suit (%) nhiet do khong khi then bic 05 do C tai cac theyi diem trong ngay cua thing cu the trong nam
San bay: Dua -1g CHC: Thing:...
Thai gian th6ng ke: TO, nam 20.. cl4n nam 20.. Tang s6 Ian quan trac.
VI d6. Kinh c16. D6 cao ten mu'c bi4n. (m)
Thai gian
(UTC)
NHIT DO KHONG KHi
(-10)-(-5) (-5)-0 0-5 5-10 10-15 15-20 20-25 25-30 30-35 >35
01
02
03
...
...
...
...
22
23
Ghi chu
Ghi cha: Th6ng ke tan swat ( s6 tan (obs) xay ra Nhiat do khOng khi thuOc cac khoang gia tri tuang Ong Ire n tong s6 tat ca cac obs quan tr5c ctla thang thOng ke trong toan b*O theyi gian th6ng ke (VD: Tat ca cac obs caa thang 6 cOa 5 nam thong ke khi hau).
78
TCCS 25:2019/CHK
BANG TOM TAT KHI HAU SAN BAY
MAU G5
Tan suat xay ra hien tuvng gi6 dint tang thAp trong khu \ft...pc san bay tai cac thed diem trong ngay cua thang cu the trong nam
San bay: Diso'ng CHC: Thang:
Thai gian thong ke: TO' nam 20.. d6n nam 20.. T6ng s6 Ian quan tra- c.
Kinh dO. DO cao tren muyc bi4n. ...(m)
Thai (UTC
gian )
Glo DUT TANG THAP Ghi ch6
lieu Trung binh
Manh Rat manh
00 - 01
01 -02
02 - 03
...
...
...
22 - 23
23 - 00
Ghi chu
79
TCCS 25:2019/CHK
PHU LUC H: (Quy Binh) Danh muc t6i thi6u cac he thO'ng k9 thuat, trang bi, thik bi
sir dung cho so' MET
1 He thong k9 thuat, thik bi khi tuyng
STT HT k9 thu4t, thiet bi AMO MWO AMS Ghi cht)
il i
He thong quan trac theri
ti6ttcr d6ng x x
2) bao hien tuvng gio dirt
He thong do dac, canh hien x x
Khi CO danh gia va kha nang co
tuyng gi6 dirt tai san bay hoac
khu vcrc Ian can hoac then yau caw
cua Cuc HKVN
3) He thong ra da thitei fiat x
4)
Thiet bi dau cuoi hoac
he th6ng thu, xCr 19, hien
thi anh may ve tinh khi
tuvng
x x x( )* *: Doi vOi san bay co hot dOng bay
hang ngay
5)
Thiet bi dau cuoi hoac
he thong thu, XCY ly so
lieu khi tuvng ca ban
(s6 lieu GTS)
x x
6)
Thiet bi claw cuoi hoac
he th6ng thu, xCr 19, hien
thisan pham du' bao theri
fiat toan cau WAFS
x x
7) khi twang hang kh6ng
He thong co so' du' lieu Bao x x
g6m tinh nang Ityu trCr dCr lieu
khi hau hang kh6ng
8)
Cac thiet bi quan trac th6ng dung lam di,r
phOngdo (Jac gio, nhiet
dO, nhiet dO diem
suang, khi ap
x x
9)
He thong du' bac, so tri
hoac he thong thu, xir
19, hien thi san pham du'
bao so tri (NWP) dO
phan giai cao
x x
2 Cac thik bi chuyen dyng va ding cy phy tro, khac
1)
He thong thOng tin not
mang, man hinh hien thi
,.• lieu Bang lieu clang ban tin
TEXT, d6 hoa
x x
x
2) Thiet bi dau cuoi he x x x
80
TCCS 25:2019/CHK
thong AFTN/AMHS (co dia chi c1:6u cueii riOng)
3)
Dutmg truyen va thiet bi z
hien thi bao dam cap nhat lien tuc cac yeu to khi tucyng san bay
x x x
S6 lieu cap nhat phai dirgc ghi kru tv dc)ng
4)
He thong (bang hoac sa d6) tieu diem tam nhin ngang khi twang san bay
x x
5) Lien lac dien thoai va IDO dam
x x(*) x (*): -10y then yeu cau thcrc to dia ca so'.
6) Internet x x x
7) May in, may photo, may fax
x x x
8) Ban, ghe x x x
9) He thong chief] sang va chieu sang khan cap
x x x(*)
10) Thiet bi bao chay va thiet bi chu'a chay
x x x
11) He thong dieu h6a khOng khi
x x x
12) Ngu6n dien va nguOn dien du'phOng
x x x
13) Tii sach nghiep vu, ban d6, so do
x x x
81
\resse-bal to locate
aneTcr-eter n sito closest
F'° cistances to 0 rxway
teA'
I
Not‘21. ,09 .%
BJkIng and navigaton aids
wh ch reed not be closer to rviway
RJ-kray TaxiTim endt~ Et m
1475 ri
I4 120 m
114-- --ISO m strip
-................„-.......-, . I flinS.^11.Z.,7 et-S' t
10 m .Or beyond"). mast
0 Essential -av cation aics shall be noJnted on frangicle supports
'OBSTACLE FREE ZONE'
Essential navigation aics snc,.ld oe Taunted or 'rangible sJpports
®it
TCCS 25:2019/CHK
PHU 1_1)C I: (Quy Binh) Han ch6 v6 tinh kh6ng d6i veyi vied dat thi6t bi quan trac san bay
(Theo Tai lieu DOC 8896 dia ICAO, phan Phu luc 2 „Vi tri crOt thief bi quan tr6c san bay')
'Anemometer mast closest distance
to runway fcr usual siting'
Siting of aeronautical meteorological instrument sensors
(A) "OBSTACLE FREE ZONE" — Khu vtsc khOng chung ngai vat (OFZ): Noi chung, cam ben khi to vng khOng du'oc vi pham khu vuc nay trir trutng hap CO you to dia phutng dac biet can thiet, khi do cam ben phai co dO linh host, duvc chieu sang hoac neu co the thi duvc ;On' vai mot chutng ngai vat san CO.
(B) 1) May do tam nhin (tam nhin dutng CHC) nam trong khoang tit 66 m den 120 m tit tim du'Ong CHC;
2) May do db cao than may CO the duvc data khu vcrc nay neu khOng duvc dat On diem dank dau giO'a (middle marker);
3) Neu can thiet phai dat tong dai le duoTig CHC, may do giO vti dO cao 10 m phai co khoang cach toi thieu 90 m tit tim duVng CHC.
(C) Vi tri th6ng thutng ci:la may do t6c do gi6: cac tim dutng CHC toi thieu 192 m doi vbei cot gio cao 6 m; 220 m vai cot gi6 cao 10 m, vcfri gia thiet gig do tai khu vu'c nay CO the dai dian cho khu VI,PC dutng CHC.
82
TCCS 25:2019/CHK
PHV LUC K: (Quy Binh) vi4t tat (ICAO) SCE dung trong cac ban tin khi tuvng hang khong
A
AAA (or AAB, AAC ... etc., in sequence) Amended meteorological
message (message type designator)
ABV Above
ADS-C Automatic dependent surveillance — contract
AFTN Aeronautical fixed telecommunication network
AIREP Air-report
AIRMET Information concerning en-route weather phenomena which
may affect the safety of low-levelaircraft operations
ALT Altitude
AMD Amend or amended (used to indicate amended meteorological
message; message type designator)
APCH Approach
ASHTAM A special series NOTAM notifying, by means of a specific
format,changes in activity of a volcano, avolcanic eruption
and/or volcanic ash cloud that is of significance to aircraft
operations
AT... At (followed by time at which weather change is forecast to
occur)
ATS Air traffic services
B
BCFG Fog patches
BECMG Becoming
BKN Broken
BL Blowing (followed by DU = dust, SA = sand or SN = snow)
BLW Below ...
BR Mist
BTN Between
BUFR Binary universal form for the representation of meteorological
Data
C
C Centre (preceded by runway designation number to identify a
parallel runway)
C Degrees Celsius (Centigrade)
CALM Calm
CAT Clear air turbulence
CAVOK (to be pronounced "KAV-OH-KAY") Visibility, cloud and
present weather better than prescribedvalues or conditions
83
TCCS 25:2019/CHK
CB (to be pronounced "CEE BEE") Cumulonimbus
CCA (or CCB, CCC ... etc., in sequence) Corrected meteorological
message (message type designator)
CLD Cloud
CLIMB-OUT Climb-out area
COR Correct or correction or corrected (used to indicate corrected meteorological message; messagetype designator)
CPDLC Controller-pilot data link communications
CTA Control area
CU Cumulus
D
D Downward (tendency in RVR during previous 10 minutes)
DEG Degrees
DEPO Deposition
DIF Diffuse
DP Dew point temperature
DR ... Low drifting (followed by DU = dust, SA = sand or SN = snow)
DS Duststorm
DU Dust
D-VOLMET Data link VOLMET
DZ Drizzle
E
E East or eastern longitude
EMBD Embedded in a layer (to indicate cumulonimbus embedded in layers of other clouds)
END Stop-end (related to RVR)
F
FBL Light (used to indicate the intensity of weather phenomena, interference or static reports, e.g. FBL RA = light rain)
FC Funnel cloud (tornado or water spout)
FCST Forecast
FEW Few
FG Fog
FIR Flight information region
FL Flight level
FLUC Fluctuating or fluctuation or fluctuated
FM ... From (followed by time weather change is forecast to begin)
FRONT Front (relating to weather)
FT Feet (dimensional unit)
FU Smoke
FZ Freezing
FZDZ Freezing drizzle
84
TCCS 25:2019/CHK
FZFG Freezing fog
FZRA Freezing rain
G
G Variations from the mean wind speed (gusts) (followed by figures in METAR/SPECI and TAF)
GAIN Airspeed or headwind gain
GAMET Area forecast for low-level flights
GR Hail
GRIB Processed meteorological data in the form of grid point values expressed in binary form(meteorological code)
GS Small hail and/or snow pellets
H
H High pressure area or the centre of high pressure
HPA Hectopascal
HR Hours
HURON Hurricane
HVY Heavy (used to indicate the intensity of weather phenomena, e.g. HVY RA = heavy rain)
HZ Haze
IAVW International airways volcano watch
ICE Icing
INC In cloud
INTSF Intensify or intensifying
ISOL Isolated
K
KM Kilometres
KMH Kilometres per hour
KT Knots
L
L Low pressure area or the centre of low pressure
LAT Latitude
LCA Local or locally or location or located
LINE Line (used in SIGMET)
LONG Longitude
LOSS Airspeed or headwind loss
LTD Limited
LVL Level
LYR Layer or layered
M
M Metres (preceded by figures)
85
TCCS 25:2019/CHK
M Minimum value of runway visual range (followed by figures in METAR/SPECI)
MAX Maximum
MBST Microburst
MET Meteorological or meteorology
METAR Aerodrome routine meteorological report (in meteorological code)MET REPORT Local routine meteorological report (in abbreviated plain language)
MID Mid-point (related to RVR)
MIFG Shallow fog
MNM Minimum
MOD Moderate (used to indicate the intensity of weather phenomena, interference or static reports,e.g. MODRA = moderate rain)
MOV Move or moving or movement
MS Minus
MSL Mean sea level
MT Mountain
MTW Mountain waves
MWO Meteorological watch office
N
N No distinct tendency (in RVR during previous 10 minutes)
N North or northern latitude
NC No change
NE North-east
NIL None or I have nothing to send to you
NM Nautical miles
NOSIG No significant change (used in trend-type landing forecasts)
NOTAM A notice distributed by means of telecommunication containing information concerning theestablishment, condition or change in any aeronautical facility, service, procedure or hazard, thetimely knowledge of which is essential to personnel concerned with flight operations
NSC Nil significant cloud
NSW Nil significant weather
NW North-west
0
OBS Observe or observed or observation
OBSC Obscure or obscured or obscuring
OCNL Occasional or occasionally
OPMET Operational meteorological (information)
OVC Overcast
P
P Maximum value of wind speed or runway visual range (followed by figures in METAR/SPECI andTAF)
PL Ice pellets
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TCCS 25:20191CHK
PO Dust/sand whirls (dust devils)
PRFG Aerodrome partially covered by fog
PROB Probability
PS Plus
PSYS Pressure system(s)
QFE Atmospheric pressure at aerodrome elevation (or at runway threshold)
QNH Altimeter sub-scale setting to obtain elevation when on the ground
R
R Runway (followed by figures in METAR/SPECI)
RA Rain
RAG Ragged
RE Recent (used to qualify weather phenomena, e.g. RERA = recent rain)
RNAV (to be pronounced "AR-NAV") Area navigation
ROBEX Regional OPMET bulletin exchange (scheme)
RRA (or RRB, RRC ... etc., in sequence) Delayed meteorological message (message type designator)
RTD Delayed (used to indicate delayed meteorological message; message type designator)
RVR Runway visual range
RWY Runway
S
S South or southern latitude
S State of the sea (followed by figures in METAR/SPECI)
SA Sand
SCT Scattered
SE South-east
SEA Sea (used in connection with sea-surface temperature and state of the sea)
SECN Section
SEV Severe (used e.g. to qualify icing and turbulence reports)
SFC Surface
SG Snow grains
SH Shower (followed by RA = rain, SN = snow, PL = ice pellets, GR = hail, GS = small hail and/orsnow pellets or combinations thereof, e.g. SHRASN = showers of rain and snow)
SIG Significant
SIGMET Information concerning en-route weather and other phenomena in the atmosphere which mayaffect the safety of aircraft operations
SN Snow
SNOCLO Aerodrome closed due to snow (used in METAR/SPECI)
SPECI Aerodrome special meteorological report (in meteorological code)
SPECIAL Local special meteorological report (in abbreviated plain language)
SQ Squall
87
TCCS 25:2019/CHK
SQL
SS
STNR
SW
T
TAF
TC
TCAC
TCU
TDO
TEMPO
TL
TN
TO To ...
TOP
TREND
TS
TS .
TURB
TX .
U
UIR
UTC
VA
VAAC
VC
VER
VHF
VIS
VOLMET
VRB
VV...
Squall line
Sandstorm
Stationary
South-west
T
Temperature
Aerodrome forecast (in meteorological code)
Tropical cyclone
Tropical cyclone advisory centre
Towering cumulus
Tornado
Temporary or temporarily
Till (followed by time by which weather change is forecast to end)
Minimum temperature (followed by figures in TAF)
(place)
Cloud top
Trend forecast
Thunderstorm (in aerodrome reports and forecasts, TS used alone means thunder heard but noprecipitation at the aerodrome)
Thunderstorm (followed by RA = RAIN, SN = snow, PL = ice pellets, GR = hail, GS = small hailand/or snow pellets or combinations thereof e.g. TSRASN = thunderstorm with rain and snow)
Turbulence
Maximum temperature (followed by figures in TAF)
U
Upward (tendency in RVR during previous 10 minutes)
Upper flight information region
Coordinated Universal Time
V
Variations from the mean wind direction (preceded and followed by figures in METAR/SPECI,e.g. 350V070)
Volcanic ash
Volcanic ash advisory centre
Vicinity of the aerodrome (followed by FG = fog, FC = funnel cloud, SH = shower, PO = dust/sandwhirls, BLDU = blowing dust, BLSA = blowing sand, BLSN = blowing snow, DS = duststorm,SS = sandstorm, TS = thunderstorm or VA = volcanic ash, e.g. VCFG = vicinity fog)
Vertical
Very high frequency [30 MHz to 300 MHz]
Visibility
Meteorological information for aircraft in flight
Variable
Vertical visibility (followed by figures in METAR/SPECI and TAF)
88
TCCS 25:2019lCHK
W West or western longitude
W... Sea-surface temperature (followed by figures in METAR/SPECI)
WAFC World area forecast centre
WAFS World area forecast system
WI Within
WID Wide
WIND Wind
WKN Weaken or weakening
WRNG Warning
WS Wind shear
WSPD Wind speed
WX Weather
89