Decoded British Isles SYNOP weather reports

Weather data for 2018May20-21Z 
Year Mon Da ZZ Site  N dd ff VV  temp  dewp   mslp  ptendency ww WW  Rain H  maxT  minT  Tg sss* GG GGh ffu
2018 May 20 21 03002 / 19 13 62  11.0   9.5 1015.8  +1.1 R                                              kn  AWS Baltasound
2018 May 20 21 03005 8 19 11 57   9.2   8.4 1016.3  +1.3 nowS 10 62                                     kn      Lerwick
2018 May 20 21 03008 / 20 09 59   9.7   8.4 1016.7  +1.3 nowS 04 //                                     kn  AWS Fair Isle
2018 May 20 21 03010 / 26 11 //   9.2   8.3 1015.5  +1.6 R    // //                                     kn  AWS Sule Skerry
2018 May 20 21 03017 / 05 03 65  11.6  10.1 1016.3  +1.8 nowR                                           kn  AWS Kirkwall
2018 May 20 21 03023 / 36 06 58   9.2   8.9 1016.3  +2.0 R    23 //                                     kn  AWS South Uist Range
2018 May 20 21 03026 / 34 07 42   8.9   8.6 1016.3  +2.3 nowR 23 //                                     kn  AWS Stornoway
2018 May 20 21 03031 / 18 02 84  14.0  10.6 1015.8  +1.2 R                                              kn  AWS Loch Glascarnoch
2018 May 20 21 03034 / 23 09 58  11.9  11.1 1016.0  +1.7 nowR 23 //                                     kn  AWS Aultbea
2018 May 20 21 03039 / 18 16 //   8.6   8.6                   // //                                     kn  AWS Bealach No Ba
2018 May 20 21 03044 / 03 01 84  13.4  11.5 1015.5  +1.4 R                                              kn  AWS Altnaharra
2018 May 20 21 03047 / 23 06 83  12.4   9.0 1017.6  +0.4 nowR                                           kn  AWS Tulloch Bridge
2018 May 20 21 03062 / 22 12 84  14.9  10.9 1015.5  +0.8 nowR                                           kn  AWS Tain Range
2018 May 20 21 03063 / 22 07 82  13.2   8.5 1016.2  +0.2 nowR                                           kn  AWS Aviemore
2018 May 20 21 03065 / 17 28 //   6.1   6.1                   // //                                     kn  AWS Cairngorm
2018 May 20 21 03066 / 20 11 85  15.6   9.9 1015.9  +0.8 nowR                                           kn  AWS Kinloss
2018 May 20 21 03068 7 21 10 82  16.0   9.4 1016.1  +0.8 nowR                                           kn      Lossiemouth
2018 May 20 21 03072 / 19 25 //   7.2   7.0                   // //                                     kn  AWS Cairnwell
2018 May 20 21 03075 / 20 08 82  15.2  10.9 1015.6  +1.2 nowR                                           kn  AWS Wick
2018 May 20 21 03080 / 34 03 83  14.2   9.9 1017.5  +1.2 nowR 23 //                                     kn  AWS Aboyne
2018 May 20 21 03088 / 19 11 59   9.5   8.3 1018.9  +0.9 R    04 //                                     kn  AWS Inverbervie
2018 May 20 21 03091 / 18 10 82  13.4   6.5 1018.0  +0.9 R                                              kn  AWS Aberdeen Dyce
2018 May 20 21 03100 / 18 08 24  10.3  10.2 1015.8  +1.1 R    51 //                                     kn  AWS Tiree
2018 May 20 21 03105 / 14 14 27  10.9  10.8 1016.2  +0.6 nowS 57 //                                     kn  AWS Port Ellen
2018 May 20 21 03111 / 13 12 43  10.0   9.7 1016.7  +0.5 R    // //                                     kn  AWS Machrihanish
2018 May 20 21 03132 / 19 10 77  12.0   8.9 1018.1  +0.3 nowR                                           kn  AWS West Freugh
2018 May 20 21 03134 / 18 06 81  13.8   6.9 1017.7  +0.3 R                                              kn  AWS Glasgow Bishopton
2018 May 20 21 03136 / 16 11 84  14.3   4.5 1017.6  +0.1 nowS 23 //                                     kn  AWS Prestwick
2018 May 20 21 03144 / 16 02 82  14.4  10.0 1018.4  +0.5 nowR                                           kn  AWS Strathallan
2018 May 20 21 03148 / 17 19 //   9.7   6.5                   // //                                     kn  AWS Glen Ogle
2018 May 20 21 03153 / 13 06 80  10.1   7.3 1019.0  +0.2 nowR                                           kn  AWS Dundrennan
2018 May 20 21 03155 / 20 07 84  12.1   5.5 1018.7  +0.3 nowR // //                                     kn  AWS Drumalbin
2018 May 20 21 03158 / 15 03 84  12.1   6.9 1019.2  +0.4 nowR                                           kn  AWS Charterhall
2018 May 20 21 03162 / 21 04 83   9.9   4.5 1020.0  +0.4 R                                              kn  AWS Eskdalemuir
2018 May 20 21 03166 / 24 03 81  14.5   5.1 1018.5  +0.8 nowR 23 //                                     kn  AWS Edinburgh Gogarbank
2018 May 20 21 03171 / 24 05 84  14.6   4.9 1018.6  +0.8 nowR                                           kn  AWS Leuchars
2018 May 20 21 03204 7 23 02 75  10.7   7.3 1018.9  +0.2 nowR                                           kn      Ronaldsway
2018 May 20 21 03210 / 16 10 81  10.7   4.5 1019.7  +0.2 R    // //                                     kn  AWS St Bees Head
2018 May 20 21 03212 / 08 02 82  14.7   3.1 1019.5  +0.5 R                                              kn  AWS Keswick
2018 May 20 21 03214 / 34 04 81  12.3   5.6 1019.7  +0.5 nowR                                           kn  AWS Walney Island
2018 May 20 21 03220 / // // 82  12.9   7.5 1019.5  +0.2 nowR // //                                     kn  AWS Carlisle
2018 May 20 21 03224 / 29 04 82  11.1   4.3 1019.4  -0.0 nowR                                           kn  AWS Spadeadam
2018 May 20 21 03225 / 21 05 //  11.4   5.6 1020.0  +0.4 nowR // //                                     kn  AWS Shap Fell
2018 May 20 21 03226 / 15 02 84  11.7   7.8 1019.7  +0.5 nowR                                           kn  AWS Warcop Range
2018 May 20 21 03227 / 21 11 //  11.0   6.6                   // //                                     kn  AWS Great Dun Fell
2018 May 20 21 03316 / 04 05 81  11.7   7.6 1019.6  +0.4 nowR                                           kn  AWS Crosby
2018 May 20 21 03318 / 33 04 //  14.2   3.3                   // //                                     kn  AWS Blackpool
2018 May 20 21 03351 / 33 05 64  14.3   8.9 1019.3  +0.8 nowR                                           kn  AWS Rostherne
2018 May 20 21 03230 / 05 01 73  12.9   7.3 1019.8  +0.6 nowR // //                                     kn  AWS Redesdale
2018 May 20 21 03238 / 07 04 63  12.9  10.4 1019.3  +0.7 nowR                                           kn  AWS Albermarle
2018 May 20 21 03240 / 13 03 50   9.1   8.3 1020.3  +0.6 nowR 10 //                                     kn  AWS Boulmer
2018 May 20 21 03257 / 16 06 72  14.8  10.0 1020.1  +1.5 nowR                                           kn  AWS Leeming
2018 May 20 21 03265 / 12 09 67  12.6   9.9 1020.3  +1.4 nowR                                           kn  AWS Topcliffe
2018 May 20 21 03266 / 10 06 68  14.0   9.2 1020.2  +1.3 nowR // //                                     kn  AWS Linton-on-Ouse
2018 May 20 21 03275 / 14 11 80  12.1   7.4 1020.1  +0.7 nowR                                           kn  AWS Loftus
2018 May 20 21 03281 / 14 10 //  10.1   7.0                   // //                                     kn  AWS Fylingdales
2018 May 20 21 03292 / 14 14 //   8.2   8.1 1021.5  +0.5 nowR // //                                     kn  AWS Bridlington
2018 May 20 21 03344 / 20 02 80  15.2   8.6 1019.6  +0.8 nowR                                           kn  AWS Bingley
2018 May 20 21 03346 / 13 10 //  13.9   8.7                   // //                                     kn  AWS Emley Moor No.2
2018 May 20 21 03373 / 12 08 70  12.1   9.4 1020.7  +0.9 nowR // //                                     kn  AWS Scampton
2018 May 20 21 03377 1 11 09 75  12.0   9.3 1021.0  +0.9 nowR                                           kn      Waddington
2018 May 20 21 03379 / 10 07 63  10.4   9.0 1021.2  +1.0 nowR // //                                     kn  AWS Cranwell
2018 May 20 21 03382 / 11 07 41   9.4   8.5 1021.3  +1.1 nowR // //                                     kn  AWS Leconfield
2018 May 20 21 03385 / 12 10 18   9.5   8.8 1021.6  +0.5 nowR // //                                     kn  AWS Donna Nook
2018 May 20 21 03391 1 09 10 65  10.6   8.6 1021.1  +0.8 nowR                                           kn      Coningsby
2018 May 20 21 03392 / 08 10 57   9.8   9.3 1021.3  +0.5 nowR // //                                     kn  AWS Wainfleet
2018 May 20 21 03302 / 19 08 71  11.4   8.5 1019.2  -0.3 nowS                                           kn  AWS Valley
2018 May 20 21 03301 / 18 05 77  12.1   6.4 1019.6  +0.2 nowR // //                                     kn  AWS Raf Mona
2018 May 20 21 03305 / 25 10 84  12.8   2.7 1020.0  +0.4 nowR                                           kn  AWS Capel Curig
2018 May 20 21 03313 / 23 02 80  11.4   8.3 1019.9  +0.4 nowR // //                                     kn  AWS Rhyl
2018 May 20 21 03321 / 31 04 79  14.0   8.9 1019.7  +0.8 nowR                                           kn  AWS Hawarden
2018 May 20 21 03405 / 20 07 81  10.8   6.8 1020.2  -0.1 nowR // //                                     kn  AWS Aberdaron
2018 May 20 21 03409 / 11 01 //  11.9   6.4 1019.8  +0.5 nowR // //                                     kn  AWS Bala
2018 May 20 21 03502 / 10 04 82  13.2   6.1 1019.5  +0.1 nowR                                           kn  AWS Aberporth
2018 May 20 21 03503 / 00 00 84  10.1   7.2 1019.9  +0.3 nowR                                           kn  AWS Trawscoed
2018 May 20 21 03507 / 17 04 81   9.9   7.5 1020.2  +0.4 nowR                                           kn  AWS Sennybridge
2018 May 20 21 03604 / 00 00 80  12.6   8.3 1019.5  +0.1 nowR // //                                     kn  AWS Milford Haven
2018 May 20 21 03605 / 31 02 73  12.4   9.3 1019.5  +0.1 nowR // //                                     kn  AWS Pembrey Sands
2018 May 20 21 03716 / 27 05 68  12.7   9.8 1019.0  +0.3 nowR                                           kn  AWS St Athan
2018 May 20 21 03330 / 12 11 81  14.8   8.4 1019.7  +0.4 nowR                                           kn  AWS Leek Thorncliffe
2018 May 20 21 03354 / 10 07 80  14.7  10.5 1020.4  +1.0 nowR                                           kn  AWS Nottingham Wea Cen
2018 May 20 21 03414 / 31 08 67  14.1   8.5 1019.2  +0.6 nowR                                           kn  AWS Shawbury
2018 May 20 21 03520 / 00 00 62  11.8   9.6 1019.1  +0.2 nowR // //                                     kn  AWS Shobdon
2018 May 20 21 03522 / 27 01 61  13.2   9.3 1019.3  +0.1 nowR                                           kn  AWS Hereford Credenhill
2018 May 20 21 03529 / 11 05 83  15.1   8.5 1019.6  +0.5 nowR                                           kn  AWS Pershore
2018 May 20 21 03535 / 12 05 82  14.7   8.3 1019.5  +0.6 nowR                                           kn  AWS Coleshill
2018 May 20 21 03544 / 13 06 81  14.7   9.3 1019.8  +0.7 nowR                                           kn  AWS Church Lawford
2018 May 20 21 03647 / 10 07 81  14.0   7.4 1019.4  +0.5 nowR // //                                     kn  AWS Little Rissington
2018 May 20 21 03649 1 08 04 82  16.1   7.0 1019.6  +0.7 nowR                                           kn      Brize Norton
2018 May 20 21 03658 / 11 08 77  14.6   7.7 1019.7  +0.7 nowR // //                                     kn  AWS Benson
2018 May 20 21 03660 / 11 06 72  13.7   9.0 1020.4  +0.7 nowR                                           kn  AWS High Wycombe
2018 May 20 21 03462 / 06 05 78  14.4  11.3 1020.1  +0.7 nowR                                           kn  AWS Wittering
2018 May 20 21 03469 / 13 09 80  12.5   9.9 1021.1  +0.7 nowR                                           kn  AWS Holbeach
2018 May 20 21 03482 1 11 09 68  12.4  10.0 1021.2  +0.8 R                                              kn      Marham
2018 May 20 21 03488 / 12 05 57   8.1   7.5 1021.7  +0.4 nowR 10 //                                     kn  AWS Weybourne
2018 May 20 21 03560 / 13 06 83  11.9   8.6 1020.7  +0.7 nowR                                           kn  AWS Bedford
2018 May 20 21 03590 / 10 03 60  10.4   8.4 1021.2  +0.2 R    04 //                                     kn  AWS Wattisham
2018 May 20 21 03684 / 12 03 57  10.0   8.8 1020.9  +0.4 nowS 04 //                                     kn  AWS Andrewsfield
2018 May 20 21 03693 / 07 05 24  10.1   9.7 1021.1  +0.2 nowS 10 //                                     kn  AWS Shoeburyness
2018 May 20 21 03707 / 00 00 74  12.7   9.0 1019.4  +0.3 nowR                                           kn  AWS Chivenor
2018 May 20 21 03628 / 24 04 70  15.1   9.7 1019.0  +0.2 nowR                                           kn  AWS Filton
2018 May 20 21 03710 / 13 01 70  11.3   7.9 1019.8  -0.0 nowR // //                                     kn  AWS Liscombe
2018 May 20 21 03803 / 10 08 57  11.5  10.4 1019.1  -0.0 nowR 04 //                                     kn  AWS Scilly St Marys
2018 May 20 21 03808 7 10 05 40  10.4   9.4 1019.1  -0.1 nowR 05 22                                     kn      Camborne
2018 May 20 21 03809 / 08 13 42  10.4   9.6 1019.1  -0.2 nowS // //                                     kn  AWS Culdrose RNAS
2018 May 20 21 03823 / 13 02 00   9.7   9.4 1019.4  +0.0 S    34 //                                     kn  AWS Cardinham
2018 May 20 21 03827 / 23 03 35   9.8   8.7 1019.6  +0.2 nowR 04 //                                     kn  AWS Plymouth
2018 May 20 21 03840 / 13 02 38   8.6   7.1 1020.1  -0.0 nowR 04 //                                     kn  AWS Dunkeswell
2018 May 20 21 03853 / 26 04 57  12.2  10.6 1019.5  +0.5 nowR 04 //                                     kn  AWS Yeovilton
2018 May 20 21 03672 1 10 09 68  14.6   9.6 1020.4  +0.9 nowR                                           kn      Northolt
2018 May 20 21 03740 / 15 05 //  14.2   8.9 1019.4  +0.5 nowR // //                                     kn  AWS Lyneham
2018 May 20 21 03743 / 22 03 71  14.3  10.9 1019.6  +0.5 nowR // //                                     kn  AWS Larkhill
2018 May 20 21 03746 / 16 04 84  13.7   8.9 1019.7  +0.5 nowR                                           kn  AWS Boscombe Down
2018 May 20 21 03749 / 14 04 68  14.9   9.1 1019.6  +0.5 nowR // //                                     kn  AWS Middle Wallop
2018 May 20 21 03761 1 11 07 65  14.1   9.0 1019.9  +0.7 nowR                                           kn      Odiham
2018 May 20 21 03769 / 08 05 68  12.3   9.1 1020.2  +0.8 nowR                                           kn  AWS Charlwood
2018 May 20 21 03772 / 10 10 69  14.1   9.2 1020.4  +0.9 nowR                                           kn  AWS Heathrow
2018 May 20 21 03781 / 11 03 65  11.3   8.1 1020.6  +0.5 R                                              kn  AWS Kenley
2018 May 20 21 03784 / 07 08 //  10.3   9.5 1020.7  +0.3 R    // //                                     kn  AWS Gravesend
2018 May 20 21 03796 / 01 14 //   8.6   8.3 1020.5  +0.2 nowS // //                                     kn  AWS Langdon Bay
2018 May 20 21 03797 / 02 07 02   8.7   8.5 1021.0  +0.2 nowS 33 //                                     kn  AWS Manston
2018 May 20 21 03857 / 07 04 59  10.7   7.6 1019.5  -0.4 nowS 04 //                                     kn  AWS Isle of Portland
2018 May 20 21 03862 / 13 01 59   9.6   7.3 1019.4  -0.0 nowR 04 //                                     kn  AWS Bournemouth Hurn
2018 May 20 21 03866 / 08 09 //  11.7   8.1 1019.3  +0.1 nowR // //                                     kn  AWS St Catherines Point
2018 May 20 21 03872 / 10 05 61  12.0   9.9 1019.7  +0.4 nowR                                           kn  AWS Thorney Island
2018 May 20 21 03876 / 34 01 //   9.2   7.8 1019.7  +0.2 nowR // //                                     kn  AWS Shoreham
2018 May 20 21 03882 / 05 03 58  11.8   8.9 1020.0  +0.5 nowS 04 //                                     kn  AWS Herstmonceux
2018 May 20 21 03894 1 07 07 59  10.3   8.7 1018.6  +0.2 nowR 05 00                                     kn      Guernsey Airport
2018 May 20 21 03895 / 06 11 48  11.7   9.3 1018.2  +0.1 nowR 04 //                                     kn  AWS Jersey Airport
2018 May 20 21 03901 / 16 07 30  12.8  12.5 1015.5  +0.8 nowR 51 //                                     kn  AWS Thomastown
2018 May 20 21 03904 / 16 08 71  13.8  12.7 1015.4  +0.5 nowR 23 //                                     kn  AWS Castlederg
2018 May 20 21 03907 / 18 08 72  14.1  12.9 1015.5  +0.7 R    62 //                                     kn  AWS Magilligan
2018 May 20 21 03911 / 15 07 //  11.7  11.6 1016.4  +0.5 nowR 62 //                                     kn  AWS Lough Fea
2018 May 20 21 03915 / 16 09 50  12.4  11.9 1016.1  +0.6 nowR 62 //                                     kn  AWS Port Glenone
2018 May 20 21 03916 / 22 04 42  12.3  11.5 1016.6  +0.9 nowS 62 //                                     kn  AWS Ballypatrick Forest
2018 May 20 21 03917 / 19 05 50  13.0  11.4 1016.7  +0.7 nowR 62 //                                     kn  AWS Aldergrove
2018 May 20 21 03923 / 20 10 50  11.2  10.8 1016.4  +0.5 R    61 //                                     kn  AWS Glennane
Year Mon Da ZZ Site  N dd ff VV  temp  dewp   mslp  ptendency ww WW  Rain H  maxT  minT  Tg sss* GG GGh ffu

AWS in place name - Automatic Weather Station (different ww codes)

Year - year
Mon - month
Da - day of month
ZZ - observation time (GMT)
Site - WMO site number
N - cloud cover (oktas, 9=obscured)
dd - wind direction (deg)
ff - wind speed (see ffu)
VV - visibility (code)
temp - air temperature (C)
dewp - dew point (C)
mslp - mean sea level pressure (mb)
ptendency - 3-hour pressure change (mb) and tendency
ww - current weather (code)
ww - current weather (AWS)(code)
WW - past weather (code)
Rain - total precipitation (mm)
H - 1: 6h precipitation measurement; 2: 12h precipitation measurement
maxT - maximum temperature (C)
minT - air minimum temperature (C)
Tg - grass minimum temperature (C)
sss - sunshine for the previous day (h)
GG - maximum wind gust
GGh - period of gust; 10minutes or W1W2 period
ffu - wind units; m/s or kn.

See here for summary details of the month so far.


This page is maintained by r.brugge@reading.ac.uk