UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND BRACKNELL Date of information: 15 December 1998 SPECIFIC AREA IN WHICH THE BROADCAST IS INTENDED TO BE RECEIVED: IN REGION VI THE NORTHERN PART OF REGION I (NORTH OF 20 N) AND THE WESTERN PART OF REGION II (AS FAR AS 60 E). CALL SIGN, FREQUENCIES, CLASS OF EMISSION AND BAND WIDTH, AND POWER SUPPLIED TO THE ANTENNA: GFA 1800 - 0600 2618.5 KHZ ) GFA 0000 - 2400 4610 KHZ )WHITE + 400 HZ GFA 0000 - 2400 8040 KHZ ) F3C 20 KW GFA 0000 - 2400 14436 KHZ )BLACK - 400 HZ GFA 0600 - 1800 18261 KHZ ) All charts transmitted at drum speed of 120 rpm ------------------------------------------------- TIME Av.Tx DESCRIPTION VALID I.O.C. mins ------------------------------------------------- 00:00 10 NAT FL340 T+24 12:00 576 00:12 10 NAT FL300 T+24 12:00 576 00:24 10 NAT FL390 T+24 12:00 576 00:36 10 NAT FL180 T+24 12:00 576 00:48 10 EUR FL390 T+24 12:00 576 01:00 10 EUR FL340 T+24 12:00 576 01:12 10 EUR FL300 T+24 12:00 576 01:24 10 EUR FL240 T+24 12:00 576 01:36 10 EUR FL180 T+24 12:00 576 01:48 10 EUR FL100 T+24 12:00 576 02:00 10 EUR FL050 T+24 12:00 576 02:12 10 NAT FL240 T+24 12:00 576 02:24 10 NAT SIG WX 12:00 576 02:36 10 MID SIG WX 12:00 576 02:48 10 EUR SIG WX 12:00 576 03:00 x WAF AMEND 00:00 576 03:05 10 AFI FL300 T+24 12:00 576 03:17 10 AFI FL390 T+24 12:00 576 03:29 10 AFI FL340 T+24 12:00 576 03:41 6 ASXX T+00 00:00 288 03:47 10 EURAFI SIG WX 12:00 576 04:31 9 500 HPA CONTOUR T+0 00:00 288 04:40 6 FSXX T+24 00:00 288 05:08 9 100 HPA CONTOUR T+0 00:00 288 05:18 10 EUR FL050 T+18 18:00 576 05:30 10 MID FL340 T+18 18:00 576 05:42 10 MID FL300 T+18 18:00 576 05:54 10 MID FL390 T+18 18:00 576 06:06 10 NAT FL340 T+18 18:00 576 06:18 10 NAT FL300 T+18 18:00 576 07:18 9 EUR FL300 T+18 18:00 576 07:30 9 EUR FL240 T+18 18:00 576 07:42 10 EUR FL180 T+18 18:00 576 07:54 9 EUR FL100 T+18 18:00 576 08:06 6 FSXX T+48 00:00 288 08:12 6 FSXX T+72 00:00 576 08:18 6 N HEMIS.SURFACE 00:00 288 08:24 11 NAT SIG WX 18:00 576 08:36 11 MID SIG WX 18:00 576 08:48 11 EUR SIG WX 18:00 576 09:00 10 AFI FL340 T+18 18:00 576 09:12 10 AFI FL300 T+18 18:00 576 09:24 WAF AMEND 18:00 576 09:29 4 SEA/SWELL T+0 00:00 288 09:35 4 SEA/SWELL T+24 00:00 288 09:41 6 ASXX T+00 06:00 288 09:47 10 AFI FL390 T+18 18:00 576 10:00 9 500 HPA CONTOUR T+24 00:00 288 10:10 4 SEA/SWELL T+48 00:00 288 10:16 11 EURAFI SIG WX 18:00 576 10:31 11 N.ATL.INFERENCE 00:00 576 10:42 6 FSXX T+24 06:00 288 11:24 10 MID FL340 T+24 00:00 576 11:36 10 MID FL300 T+24 00:00 576 11:48 10 MID FL390 T+24 00:00 576 12:00 10 NAT FL340 T+24 00:00 576 12:12 10 NAT FL300 T+24 00:00 576 12:24 10 NAT FL390 T+24 00:00 576 12:36 10 NAT FL180 T+24 00:00 576 12:48 9 EUR FL390 T+24 00:00 576 13:00 9 EUR FL340 T+24 00:00 576 13:12 9 EUR FL300 T+24 00:00 576 13:24 9 EUR FL240 T+24 00:00 576 13:36 9 EUR FL180 T+24 00:00 576 13:48 9 EUR FL100 T+24 00:00 576 14:00 10 EUR FL050 T+24 00:00 576 14:12 5 UK SEA TEMP T+0 00:00 288 14:24 11 NAT SIG WX 00:00 576 14:36 11 MID SIG WX 00:00 576 14:48 11 EUR SIG WX 00:00 576 15:00 10 AFI FL300 T+24 00:00 576 15:12 10 AFI FL390 T+24 00:00 576 15:24 10 AFI FL340 T+24 00:00 576 15:36 x WAF AMEND 12:00 576 15:41 6 ASXX T+0 12:00 288 15:47 11 EUR/AFI SIG WX 00:00 576 16:02 11 N ATL SEA ICE CHART 00:00 576 16:22 x GENERAL NOTICES 12:00 576 16:41 6 FSXX T+24 12:00 288 17:08 9 500 HPA CONTOUR T+0 12:00 288 17:18 10 EUR FL050 T+18 06:00 576 17:30 10 MID FL340 T+18 06:00 576 17:42 10 MID FL300 T+18 06:00 576 17:54 10 MID FL390 T+18 06:00 576 18:06 10 NAT FL340 T+18 06:00 576 18:18 10 NAT FL300 T+18 06:00 576 18:30 10 NAT FL390 T+18 06:00 576 18:42 10 NAT FL180 T+18 06:00 576 19:00 9 EUR FL390 T+18 06:00 576 19:12 9 EUR FL340 T+18 06:00 576 19:24 9 EUR FL300 T+18 06:00 576 19:36 9 EUR FL240 T+18 06:00 576 19:48 9 EUR FL180 T+18 06:00 576 20:00 9 EUR FL100 T+18 06:00 576 20:12 4 SEA/SWELL T+0 12:00 288 20:18 4 SEA/SWELL T+24 12:00 288 20:24 11 NAT SIG WX 06:00 576 20:36 11 MID SIG WX 06:00 576 20:48 11 EUR SIG WX 06:00 576 21:00 11 EURAFI SIG WX 06:00 576 21:15 10 AFI FL300 T+18 06:00 576 21:41 6 ASXX T+0 18:00 288 21:47 x WAF AMEND 06:00 576 21:52 4 SEA/SWELL T+48 12:00 288 21:58 10 AFI FL390 T+18 06:00 576 22:10 10 AFI FL340 T+18 06:00 576 22:22 6 FSXX T+48 12:00 288 22:30 6 FSXX T+72 12:00 288 22:41 6 FSXX T+24 18:00 288 22:51 10 MID FL340 T+24 12:00 576 23:03 10 MID FL300 T+24 12:00 576 23:15 10 MID FL390 T+24 12:00 576 23:33 6 FSXX T+96 12:00 288 23:40 6 FSXX T+120 12:00 288 ------------------------------------------------- Notes: Many of the products are for aviation: - forecast winds at various flight levels, - forecast significant weather. The areas are designated by AFI (African sector), NAT (North Atlantic sector), EUR (European sector) and MID (Middle East including routes from Europe to the Far east). ASXX is a MSLP analysis with fronts FSXX is a MSLP forecast with fronts The 500 HPA charts include the 1000/500 hPa total thickness. The 96 and 120-hour forecast charts are only prepared once a day based on a data time of 12:00. --------------------------------------------------- Compiled by MWS from information kindly supplied by the Met Office