UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122412.upa.cvt Date: 1200Z 24 DEC 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 24 DEC 25 Station: SBTT WMO ident: 82411 Latitude: -4.25 Longitude: -69.94 Elevation: 85.00 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- SFC 1000 85 23.0 22.0 94 1.0 22.3 120 3 296.1 299.2 295.4 344.8 16.87 1 983 235 23.2 23.0 99 0.2 23.1 55 12 297.8 301.1 296.8 350.9 18.28 2 953 507 25.6 17.6 61 8.0 20.1 35 18 302.9 305.4 295.0 342.6 13.40 3 947 563 25.6 16.6 58 9.0 19.4 30 19 303.4 305.8 294.6 341.0 12.65 4 925 770 24.4 17.4 65 7.0 19.5 25 20 304.3 306.8 295.5 344.9 13.64 5 850 1507 19.6 14.6 73 5.0 16.3 20 22 306.7 309.0 295.3 344.0 12.39 6 828 1733 18.2 14.4 78 3.8 15.6 13 19 307.5 309.9 295.6 345.4 12.56 7 702 3132 11.6 1.6 50 10.0 6.0 293 3 315.1 316.2 292.9 334.4 6.13 8 700 3156 11.4 2.4 54 9.0 6.3 285 3 315.1 316.4 293.2 335.6 6.51 9 691 3264 10.6 5.6 71 5.0 7.6 280 4 315.4 317.0 294.7 341.4 8.29 10 665 3584 9.0 2.0 61 7.0 5.0 264 7 317.1 318.4 293.9 338.2 6.66 11 544 5213 -3.7 -3.7 100 0.0 -3.7 228 11 320.7 321.7 293.9 338.0 5.36 12 524 5509 -5.5 -5.7 98 0.2 -5.6 224 12 322.0 322.9 293.7 337.6 4.78 13 515 5646 -3.3 -14.3 42 11.0 -7.7 222 12 326.2 326.7 293.0 334.6 2.45 14 504 5817 -3.5 -27.5 14 24.0 -10.4 227 13 328.0 328.2 292.0 330.9 0.79 15 500 5880 -4.1 -30.1 11 26.0 -11.1 245 13 328.0 328.2 291.8 330.3 0.63 16 474 6299 -7.1 -42.1 4 35.0 -13.9 264 14 329.4 329.4 291.7 330.1 0.20 17 454 6634 -8.9 -50.9 2 42.0 -15.4 289 15 331.2 331.2 292.1 331.5 0.08 18 450 6702 -9.3 -37.3 8 28.0 -15.2 294 15 331.5 331.6 292.5 332.9 0.34 19 430 7052 -12.3 -42.3 6 30.0 -17.6 274 13 332.1 332.1 292.5 332.9 0.21 20 402 7563 -16.7 -23.7 55 7.0 -18.7 242 10 332.8 333.1 293.8 337.8 1.40 21 400 7600 -16.9 -24.9 50 8.0 -19.1 240 10 333.0 333.3 293.7 337.6 1.27 22 395 7694 -17.5 -28.5 38 11.0 -20.1 263 10 333.4 333.6 293.5 336.8 0.92 23 393 7732 -17.7 -23.7 59 6.0 -19.4 257 10 333.7 334.0 294.0 338.8 1.44 24 382 7944 -19.1 -25.1 59 6.0 -20.7 225 10 334.5 334.8 294.1 339.3 1.30 25 377 8042 -19.1 -34.1 25 15.0 -22.1 227 11 335.8 335.9 293.8 337.9 0.57 26 362 8344 -20.5 -24.5 70 4.0 -21.6 228 9 337.9 338.2 295.1 343.1 1.45 27 300 9710 -29.3 -39.3 37 10.0 -30.7 125 6 344.1 344.2 295.7 345.7 0.42 28 272 10399 -34.5 -51.5 16 17.0 -35.9 100 11 346.3 346.3 295.9 346.8 0.12 29 250 10980 -39.9 -51.9 27 12.0 -40.7 90 13 346.7 346.8 296.0 347.3 0.13 30 205 12300 -51.9 -59.9 38 8.0 -52.1 111 20 348.1 348.1 296.3 348.4 0.06 31 201 12428 -52.5 -68.5 13 16.0 -52.8 118 22 349.1 349.1 296.4 349.2 0.02 32 200 12460 -52.9 -68.9 13 16.0 -53.2 120 23 349.0 349.0 296.4 349.1 0.02 33 192 12722 -54.9 -71.9 10 17.0 -55.2 120 24 349.9 349.9 296.6 349.9 0.01 34 156 14013 -66.1 -78.1 17 12.0 -66.2 95 21 352.2 352.2 297.1 352.3 0.01 35 150 14250 -67.1 -80.1 14 13.0 -67.2 90 20 354.5 354.5 297.6 354.5 0.00 36 126 15282 -74.7 -79.7 46 5.0 -74.7 344 12 358.9 358.9 298.5 358.9 0.01 37 116 15759 -76.9 -85.9 22 9.0 -76.9 340 4 363.4 363.4 299.4 363.4 0.00 38 101 16544 -81.7 -88.7 29 7.0 -81.7 78 10 368.8 368.8 300.4 368.8 0.00 39 100 16600 -82.1 -89.1 29 7.0 -82.1 85 11 369.1 369.1 300.4 369.1 0.00 40 88 17311 -85.9 -91.9 33 6.0 -85.9 90 17 375.2 375.2 301.5 375.2 0.00 41 75 18193 -84.7 -90.7 34 6.0 -84.7 110 40 395.3 395.3 304.6 395.3 0.00 42 72 18422 -81.1 -89.1 25 8.0 -81.1 91 28 407.6 407.6 306.2 407.6 0.00 43 70 18580 -82.3 -89.3 29 7.0 -82.3 70 12 408.3 408.3 306.3 408.3 0.00 44 65 18992 -83.7 -90.7 28 7.0 -83.7 89 12 414.0 414.0 307.0 414.0 0.00 45 60 19441 -79.9 -89.9 17 10.0 -79.9 108 17 432.1 432.1 309.0 432.1 0.00 46 58 19635 -73.9 -87.9 10 14.0 -74.0 105 25 449.8 449.8 310.8 449.9 0.00 47 55 19947 -70.9 -87.9 6 17.0 -71.0 105 39 463.6 463.6 312.1 463.6 0.00 48 52 20278 -72.1 -89.1 6 17.0 -72.2 102 34 468.3 468.3 312.5 468.3 0.00 49 50 20510 -70.7 -89.7 4 19.0 -70.8 90 41 476.9 476.9 313.2 476.9 0.00 50 35 22689 -58.3 -87.3 1 29.0 -59.3 90 56 560.4 560.4 318.6 560.5 0.01 51 30 23660 -57.7 -87.7 1 30.0 -58.9 95 64 587.3 587.3 320.0 587.4 0.01 52 29 23874 -57.4 -87.4 1 30.0 -58.7 95 64 593.8 593.8 320.3 593.8 0.01 53 27 24326 -56.9 -86.9 1 30.0 -58.3 95 64 607.6 607.6 320.9 607.6 0.01 TRP 88 17311 -85.9 -91.9 33 6.0 -85.9 90 17 375.2 375.2 301.5 375.2 0.00 WND 29 23874 -57.4 -87.4 1 30.0 -58.7 95 64 593.8 593.8 320.3 593.8 0.01 Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 579.25 mb = 4738.28 m = 15545.35 ft Wetbulb zero: 595.70 mb = 4476.43 m = 14686.28 ft Precipitable water: 1.93 inches Sfc-500 mean rel hum: 71.76 % Est. max temperature: 33.53 C = 92.35 F Sfc-Lift cond lev (LCL): 985.87 mb = 209.49 m = 687.29 ft T: 23.17 C 700-500 lapse rate: 5.69 C/km ThetaE index: 10.99 C Layer 702.0- 700.0 mb Conv cond level (CCL): 783.21 mb = 2204.00 m = 7230.87 ft Mean mixing ratio: 14.73 g/kg Conv temperature: 36.90 C = 98.43 F Cap Strength: 3.70 C Lifted Index: 0.57 C Risk: Showers probable Lifted Index @300 mb: 1.68 C Lifted Index @700 mb: 2.12 C Showalter Index: 1.10 C Risk: Showers probable Total Totals Index: 42.40 C Risk: None Vertical Totals Index: 23.70 C Cross Totals Index: 18.70 C K Index: 29.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 232.20 Risk: None Energy Index: -2.54 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 181.97 J/kg Max Up Vert Vel: 19.08 m/s Conv Inhibition (B-): 273.29 J/kg Cap Strength: 3.70 C Lift Cond Lev (LCL): 879.44 mb = 1210.25 m = 3970.59 ft Lev Free Conv (LFC): 614.44 mb = 4225.15 m = 13861.87 ft Equ Level (EL): 504.44 mb = 5810.02 m = 19061.50 ft B at Equ Level: 122.37 J/kg Max Parcel Lev (MPL): 234.44 mb = 11407.60 m = 37426.05 ft Wind level data Storm motion: 9 at 9 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 1000 85 120 3 -2.6 1.5 | 174 10 -1.1 10.4 1 1000 83 55 6 -4.9 -3.4 | 148 6 -3.4 5.5 2 975 305 55 15 -12.3 -8.6 | 92 11 -10.8 0.3 3 942 610 25 20 -8.5 -18.1 | 37 12 -7.0 -9.2 4 925 770 25 20 -8.5 -18.1 | 37 12 -7.0 -9.2 5 910 914 25 21 -8.9 -19.0 | 36 13 -7.4 -10.1 6 850 1507 20 22 -7.5 -20.7 | 27 13 -6.0 -11.8 7 848 1524 20 22 -7.5 -20.7 | 27 13 -6.0 -11.8 8 790 2134 360 13 -0.0 -13.0 | 340 4 1.5 -4.1 9 762 2438 355 11 1.0 -11.0 | 310 3 2.4 -2.1 10 709 3048 320 3 1.9 -2.3 | 207 7 3.4 6.6 11 700 3156 285 3 2.9 -0.8 | 208 9 4.4 8.1 12 634 3962 245 10 9.1 4.2 | 219 17 10.5 13.1 13 610 4267 240 7 6.1 3.5 | 211 15 7.5 12.4 14 506 5791 220 13 8.4 10.0 | 208 21 9.8 18.9 15 500 5880 245 13 11.8 5.5 | 223 20 13.3 14.4 16 486 6096 250 14 13.2 4.8 | 227 20 14.6 13.7 17 449 6706 295 15 13.6 -6.3 | 260 15 15.1 2.6 18 400 7600 240 10 8.7 5.0 | 216 17 10.1 13.9 19 399 7620 275 10 10.0 -0.9 | 235 14 11.4 8.0 20 383 7925 225 10 7.1 7.1 | 208 18 8.5 16.0 21 367 8230 230 12 9.2 7.7 | 213 20 10.7 16.6 22 352 8534 225 2 1.4 1.4 | 196 11 2.9 10.3 23 300 9710 125 6 -4.9 3.4 | 164 13 -3.4 12.3 24 273 10363 100 11 -10.8 1.9 | 139 14 -9.4 10.8 25 250 10980 90 13 -13.0 0.0 | 128 15 -11.5 8.9 26 218 11887 90 12 -12.0 0.0 | 130 14 -10.5 8.9 27 200 12460 120 23 -19.9 11.5 | 138 28 -18.4 20.4 28 189 12802 120 24 -20.8 12.0 | 137 28 -19.3 20.9 29 150 14250 90 20 -20.0 0.0 | 116 21 -18.5 8.9 30 148 14326 110 27 -25.4 9.2 | 127 30 -23.9 18.1 31 140 14630 70 14 -13.2 -4.8 | 109 12 -11.7 4.1 32 120 15545 305 11 9.0 -6.3 | 256 11 10.5 2.6 33 114 15850 0 0 -0.0 -0.0 | 189 9 1.5 8.9 34 100 16600 85 11 -11.0 -1.0 | 130 12 -9.5 7.9 35 97 16764 85 11 -11.0 -1.0 | 130 12 -9.5 7.9 36 92 17069 65 8 -7.3 -3.4 | 134 8 -5.8 5.5 37 88 17311 90 17 -17.0 0.0 | 120 18 -15.5 8.9 38 87 17374 70 11 -10.3 -3.8 | 120 10 -8.9 5.1 39 82 17678 110 27 -25.4 9.2 | 127 30 -23.9 18.1 40 74 18288 110 42 -39.5 14.4 | 121 45 -38.0 23.3 41 70 18580 70 12 -11.3 -4.1 | 116 11 -9.8 4.8 42 70 18593 100 34 -33.5 5.9 | 115 35 -32.0 14.8 43 66 18898 70 12 -11.3 -4.1 | 116 11 -9.8 4.8 44 63 19202 125 12 -9.8 6.9 | 152 18 -8.4 15.8 45 60 19507 105 18 -17.4 4.7 | 130 21 -15.9 13.6 46 54 20117 105 46 -44.4 11.9 | 116 48 -43.0 20.8 47 51 20422 100 24 -23.6 4.2 | 121 26 -22.2 13.1 48 50 20510 90 41 -41.0 0.0 | 103 41 -39.5 8.9 49 48 20726 90 41 -41.0 0.0 | 103 41 -39.5 8.9 50 40 21946 85 59 -58.8 -5.1 | 94 57 -57.3 3.8 51 31 23470 95 53 -52.8 4.6 | 105 53 -51.3 13.5 52 30 23660 95 64 -63.8 5.6 | 103 64 -62.3 14.5 53 29 23874 95 64 -63.8 5.6 | 103 64 -62.3 14.5 54 28 24079 95 64 -63.8 5.6 | 103 64 -62.3 14.5 55 24 24689 95 63 -62.8 5.5 | 103 63 -61.3 14.4 Wind Parameters Mean winds (0-6000m): 339.4 at 12.0 knts Storm direction: 9.4 at 9.0 knts Shear (0-3000m) pos: 0.0 neg: 1.3 tot: 1.3 10-3/s Storm rel Dir Shear (0-3000m): 61.5 deg Storm rel helicity (0-3000m) pos: 0.0 neg: -77.4 tot: -77.4 m^2/s^2 ave: -25.8 10^-3 m/s^2 rel: -0.80 Storm rel vorticity (0-3000m) horiz: 7.7 stream: -6.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 6.72 Bulk Shear: 27.09 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 44 14 81 9| 0.0 14.9 14.9| 0.0 -41.7 -41.7 -83.4 -0.93| 18.7-17.5 1000 33 17 54 10| 0.0 8.4 8.4| 0.0 -47.0 -47.0 -47.0 -0.90| 10.6 -9.6 1500 28 19 44 11| 0.0 5.7 5.7| 0.0 -54.0 -54.0 -36.0 -0.89| 8.0 -7.1 2000 24 18 38 10| 0.0 2.9 2.9| 0.0 -65.3 -65.3 -32.7 -0.80| 8.3 -6.6 2500 21 17 33 8| 0.0 1.8 1.8| 0.0 -69.9 -69.9 -28.0 -0.81| 7.8 -6.3 3000 18 15 31 6| 0.0 1.3 1.3| 0.0 -77.4 -77.4 -25.8 -0.80| 7.7 -6.2 4000 10 13 13 4| 0.0 1.9 1.9| 6.1 -83.2 -77.1 -19.3 -0.64| 7.1 -4.5 5000 0 12 335 3| 0.0 1.7 1.7| 6.3 -89.3 -83.0 -16.6 -0.61| 6.2 -3.8 6000 339 12 292 6| 0.5 1.6 2.1| 42.2 -94.8 -52.6 -8.8 -0.44| 6.1 -2.7 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251224.12.gif