N49RF HRD GPS Dropwindsonde Scientist Log Storm SALEX Dropwindsonde Scientists Jason Dunion -------------------------- -------------------------------------------------- Flight ID 050928N Flight Director Paul Flaherty Takeoff from BARBADOS at 1445 UTC ---------------------- --------------------------------------------- ---------- ---------- Mission ID WXWXA TRAIN AVAPS Operators John Hill/Dave Brogan Recovery at BARBADOS at 2045 UTC --------------------- --------------------------------------------- ---------- ---------- +----------------------------------------------------------------------------------------------------------------------------------+ | Drop Sonde Time Lat Lon Surface Wind closet DLM Comments | | # ID # (UTC) (°N) (°W) Pressure to surface wind | | (mb) dir/spd hgt (kt) | | (kt) (m) | +----------------------------------------------------------------------------------------------------------------------------------+ | 1 000745075 153131 12.77 54.01 1012.9 55° 07 8 200° 03 Slightly dryer than Jordan; SAL to the N; | | RH heating cycles | | 2 003135272 155507 12.55 51.00 1012.0 30° 04 8 130° 02 Dry 200-550 mb; moist below except 35% RH dry slot | | @ 800 mb; RH heating cycles | | 3 000745026 162020 12.29 48.00 1010.5 310° 07 7 55° 06 Edge of some dry air to the south--where the hell | | is it from?; 5-40% 200-450 and 500-750 mb; | | RH heating cycles | | 4 012225065 164602 12.01 45.00 1009.1 65° 17 5 70° 13 Very dry 200-500 mb--moist below; dry air to south | | again; poor telemetry 517-685 mb and few winds; | | RH heating cycles | | 5 012225094 165516 12.41 44.00 ------ -------------- -------- No telemetry 809-975 mb; spotty winds; RH heating | | cycles | | 6 012225206 165646 12.48 43.84 ------ -------------- -------- Fast fall--no winds | | 7 000715077 165905 12.58 43.59 ------ -------------- -------- AVAPS froze--no PTH below 550 mb and no winds below | | ~615 mb | | 8 011378085 170629 12.90 42.78 ------ -------------- -------- No telemetry until 380 mb; no winds first 144 s; | | sonde obs. terminated by AVAPS operator at 459 mb | | 9 000745024 170906 13.02 42.50 1010.3 89° 13 14 90° 14 SAL drop; 0-5% RH 200-650 mb--moist below; | | temperature inversion 500 and 650 mb | | 10 012615147 172250 13.61 41.00 1011.4 63° 15 14 95° 16 SAL drop; 0-5% RH 200-600 mb; moist ~650 mb; dry | | wedge below 650 mb | | 11 000745122 173157 14.03 40.04 1011.2 65° 14 8 95° 16 ~5% RH 200-600 mb; thin moist slot ~400 and 650 mb; | | dry wedge 650-850 mb; spotty telemetry and winds | | 585-675 mb; T inversion 500, 650, and 850 mb; | | RH heating cycles | | 12 012225200 174006 15.00 40.00 1011.2 65° 14 7 90° 14 5% RH 200-650 mb; very thin moist slot ~675 mb; | | 25-35% RH 700-800 mb; weak/poor telemetry and no | | winds 540-625 mb; T inversion 500, 650, and 800 mb; | | RH heating cycles | | 13 012025110 174836 15.99 40.13 1012.2 80° 16 8 90° 12 5% RH 200-700 mb; dry slot 700-800 mb; T inversion | | 700 and 850 mb; RH heating cycles | | 14 000715087 175533 16.03 41.02 1012.2 81° 18 16 100° 12 RH same as above; T inversion 500, 650, and 800 mb | | (2-3°C @ ~700 mb); noisy GPS signal on AVAPS | | channel #4--better on channel #5 | | 15 012225184 180317 16.05 42.02 1011.9 85° 21 8 105° 13 RH same as above; T inversion 500, 700, and 800 mb | | (~2°C @ 700 mb) | | 16 011378218 181109 16.08 43.03 1011.4 75° 19 7 105° 13 5% RH 200-500 mb--still dry below, but variable; | | T inversions are smaller now; noisy GPS signal | | 17 012225091 181853 16.09 44.00 1009.9 80° 21 7 115° 14 Dry 200-400 mb--dry below, but variable; | | T inversions even smaller | | 18 000745123 182643 16.10 45.00 1010.8 80° 16 8 125° 07 Moist 200 mb-surface, except dry wedge 550-850 mb; | | small T inversion @ 725 mb; weak/poor PTH telemetry | | and no winds 280-360 mb | | 19 000745114 183426 16.10 46.00 1011.2 90° 13 8 110° 06 Moist 200-450 mb; 20-30% RH 500-600 mb--moist | | below; 2-3°C T inversion 450 mb; some noisy | | telemetry | | 20 012225201 184229 16.10 47.01 1011.1 55° 09 8 90° 06 Moist 200-400 mb; somewhat dry 450-850 mb (low as | | 20% RH); RH heating cycles | | 21 012025105 185829 16.09 49.00 1011.1 60° 10 8 135° 03 Slightly dryer than Jordan above ~900 mb; | | RH heating cycles | | 22 000745124 190623 16.07 50.00 1011.7 75° 13 8 150° 04 Same as above--maybe a bit dryer | | 23 000745027 193026 16.01 53.01 1011.8 75° 09 7 160° 04 Moister than Jordan--non-SAL; RH heating cycles | | 24 000715357 193931 15.57 54.00 1012.0 30° 08 5 180° 03 Dry above ~600 mb--moist below; weak telemetry | | 767-794 mb; no winds 767-829 mb; RH heating cycles | | 25 012225099 195128 15.01 55.30 1011.8 40° 11 8 225° 03 Dryer than Jordan; RH heating cycles | | 26 000715043 195904 14.65 56.11 1011.9 30° 09 7 245° 03 Dryer than Jordan; 5% RH @ 500 mb; 15% @ 700 mb; | | no winds 237-287 mb; RH heating cycles | | 27 000745110 200726 14.26 57.00 ------ -------------- -------- No winds; RH heating cycles | | 28 000715050 200920 14.17 57.20 1011.7 15° 13 8 260° 01 Dry slots 600 mb (5% RH) and 750 mb (30% RH); | | RH heating cycles | +----------------------------------------------------------------------------------------------------------------------------------+