N42/3RF HRD GPS Dropwindsonde Scientist Log Storm Ophelia Dropwindsonde Scientists Krystal Valde/Paul Leighton -------------------------- -------------------------------------------------- Flight ID 050917H Flight Director Tom Shepherd Takeoff from PEACE AB at 161102 UTC ---------------------- --------------------------------------------- ---------- ---------- Mission ID WX16A OPHELIA AVAPS Operators Beth Kerr/Bill Olney Recovery at PEACE AB at 234714 UTC --------------------- --------------------------------------------- ---------- ---------- +----------------------------------------------------------------------------------------------------------------------------------+ | Drop Sonde Time Lat Lon Surface Wind closet BT Eye, Comments | | # ID # (UTC) (°N) (°W) Pressure to surface SST Eyewall, | | (mb) dir/spd hgt (°C) Rainband | | (kt) (m) (direction) (RH heating cycles except as noted) | +----------------------------------------------------------------------------------------------------------------------------------+ | 1 011378154 163631 42.93 68.92 1010.5 356° 08 8 Spotty T,RH @ beginning; noisy GPS signal; | | delayed launch detect 5 s | | 2 011378095 165430 42.08 67.51 1004.1 79° 17 46 Rainband Wind gap 334-353 s; wind direction change | | between 800 and 825 mb | | 3 011378098 165548 42.07 67.37 1003.3 95° 29 7 15.5 "Eye" Noisy PTH telemetry; strong surface winds; | | wind direction change between 600 & 625 mb | | 4 011218118 170304 41.71 66.78 1003.3 136° 17 8 Strong near-surface winds | | 5 011378097 170745 41.45 66.41 1003.1 152° 27 4 Late winds 202 s; 60 kt @ 875 mb; by RMW | | 6 011378156 171814 40.95 65.64 1006.4 165° 37 7 Winds > 60 kt @ 700 mb to near surface; | | set f/l Td missing; noisy GPS signal up to | | 135 s | | 7 011378152 173012 41.29 64.32 1011.5 161° 31 7 | | 8 011378155 174304 41.82 62.97 1015.1 158° 16 7 Dry sounding | | 9 012225067 180320 42.42 60.78 1018.0 156° 10 4 Dry sounding, especially between 650 and | | 750 mb | | 10 012615150 182338 43.11 58.69 1019.7 182° 14 7 Dry sounding, especially between 775 and | | 850 mb | | 11 011378094 184333 43.80 56.60 1021.3 139° 14 7 Wind direction change near surface; over | | Gulf stream | | 12 012025087 190344 44.58 54.57 1023.1 104° 06 8 Wind direction change near surface; over | | Gulf stream | | 13 011378096 193256 45.61 56.99 1022.3 101° 17 8 Delayed launch detect 8.5 s; no RH below | | 784 mb; wind direction change @ ~900 mb | | 14 011378091 195058 46.99 57.08 1023.1 126° 16 8 Bad T,RH data until ~360 s--some still | | present afterwards; wind direction change | | @ 925 mb; no heights | | 15 012025090 201224 46.20 58.82 1020.6 133° 12 7 Set f/l T,Td missing; wind gaps 26-67 and | | 67-127 s; spotty winds @ beginning; wind | | direction change @ ~875 mb | | 16 011378092 203449 45.41 60.62 1018.1 85° 16 7 Wind direction change @ 950 mb | | 17 012615155 205917 44.49 62.36 1014.2 108° 12 7 Late winds 199 s; wind gap 215-353 s; | | delayed launch detect 3 s | | 17A 011218135 210033 44.44 62.49 1014.5 105° 12 7 Backup sonde; late winds 74 s; used RH2 | | prior to 320 s; heaters off | | 18 011245146 212139 43.80 64.20 1009.0 100° 23 7 Late winds 133 s; wind gap 332-400 s; | | intermittent winds; set f/l Td missing; | | heaters off | | 18A 011378089 212329 43.70 64.32 1009.3 98° 21 10 Backup sonde; set f/l T,Td missing; wind | | direction change @ 550 mb; heaters off | | 19 011378090 213049 43.35 64.77 1012.4 -------------- 17.0 "E of center"; no T, RH, or wind data | | 19A 011378161 213219 43.36 64.92 1004.0 75° 29 13 Backup sonde; RH dry bias correction | | 199-360 s; heaters off | | 20 011378024 214634 43.35 66.34 1004.9 16° 21 7 10.0 "Center"; wind change ~650 mb; heaters off | | 21 012025088 220234 43.30 67.93 1008.8 3° 19 7 Delayed launch detect 7.5 s | | 22 012225050 222224 41.86 67.85 1009.1 306° 17 5 ---- Set f/l Td missing; delayed launch detect | | 4 s | | 23 012225070 223600 41.90 66.32 1005.1 245° 21 4 "South of center" | | 24 012615152 225332 43.34 66.33 1004.9 56° 17 889 "Center"; spotty winds, especially towards | | bottom; winds died below 906 mb | +----------------------------------------------------------------------------------------------------------------------------------+