UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120512.upa.cvt Date: 1200Z 5 DEC 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 5 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 24.0 22.0 89 2.0 22.6 110 4 297.1 300.2 295.7 346.0 16.87 1 975 309 25.6 21.6 79 4.0 22.7 35 19 300.9 304.0 296.7 350.6 16.89 2 925 773 23.6 21.6 89 2.0 22.2 25 19 303.4 306.7 298.0 356.4 17.83 3 850 1509 19.6 16.3 81 3.3 17.3 360 16 306.7 309.3 296.3 348.3 13.85 4 805 1978 18.4 11.4 64 7.0 13.8 339 16 310.2 312.2 294.9 342.5 10.58 5 709 3055 11.0 6.8 75 4.2 8.4 294 13 313.5 315.2 294.5 340.8 8.78 6 700 3162 10.6 5.6 71 5.0 7.6 265 11 314.2 315.8 294.3 339.7 8.18 7 676 3453 9.6 -3.4 40 13.0 2.9 260 11 316.3 317.1 291.8 330.4 4.40 8 655 3714 7.2 3.1 75 4.1 4.8 260 10 316.4 317.8 294.2 339.5 7.32 9 623 4125 4.4 1.4 81 3.0 2.7 260 10 317.8 319.1 294.2 339.4 6.82 10 543 5231 -3.7 -5.9 85 2.2 -4.7 242 22 320.9 321.8 293.2 335.7 4.54 11 500 5880 -7.3 -10.8 76 3.5 -8.8 260 30 324.1 324.8 293.2 335.4 3.36 12 486 6100 -9.1 -11.6 82 2.5 -10.1 260 29 324.6 325.2 293.2 335.4 3.24 13 473 6310 -8.5 -14.5 62 6.0 -10.8 270 21 327.8 328.4 293.5 336.8 2.63 14 400 7590 -15.5 -17.7 83 2.2 -16.3 345 4 334.8 335.3 295.1 343.2 2.38 15 383 7917 -17.9 -20.0 84 2.1 -18.6 273 3 335.9 336.3 295.1 343.1 2.04 16 357 8440 -21.9 -23.1 90 1.2 -22.2 234 9 337.3 337.7 295.1 343.4 1.67 17 300 9700 -30.9 -33.0 82 2.1 -31.3 220 10 341.8 342.0 295.5 344.8 0.79 18 273 10358 -35.9 -39.6 69 3.7 -36.4 142 10 343.9 344.0 295.7 345.7 0.45 19 250 10960 -40.9 -45.3 62 4.4 -41.3 110 24 345.3 345.3 295.8 346.3 0.27 20 239 11265 -43.5 -48.5 58 5.0 -43.8 113 22 345.8 345.9 295.9 346.6 0.20 21 200 12440 -54.1 -58.0 62 3.9 -54.2 95 29 347.1 347.1 296.1 347.4 0.08 22 175 13282 -61.9 -66.2 56 4.3 -62.0 92 39 347.8 347.8 296.1 347.9 0.03 23 151 14180 -68.7 -76.7 31 8.0 -68.8 67 39 351.1 351.1 296.9 351.1 0.01 24 150 14220 -68.5 -76.5 31 8.0 -68.5 65 39 352.1 352.1 297.1 352.1 0.01 25 127 15210 -71.5 -83.5 15 12.0 -71.5 22 26 363.8 363.8 299.4 363.9 0.00 26 100 16600 -77.3 -88.3 16 11.0 -77.3 335 13 378.4 378.4 302.0 378.4 0.00 27 77 18054 -87.1 -91.3 46 4.2 -87.1 135 11 387.3 387.3 303.4 387.3 0.00 28 70 18580 -80.9 -89.9 21 9.0 -80.9 50 1 411.3 411.3 306.7 411.3 0.00 29 69 18661 -80.7 -89.7 21 9.0 -80.7 77 13 413.4 413.4 306.9 413.4 0.00 30 67 18830 -73.5 -87.5 10 14.0 -73.6 57 4 432.5 432.5 309.1 432.5 0.00 31 60 19472 -75.9 -88.9 11 13.0 -76.0 88 6 441.0 441.0 310.0 441.0 0.00 32 51 20431 -68.1 -90.1 3 22.0 -68.3 127 13 480.3 480.3 313.5 480.3 0.00 33 50 20550 -68.1 -90.1 3 22.0 -68.3 95 33 483.0 483.0 313.7 483.0 0.00 34 39 22056 -65.1 -90.1 2 25.0 -65.5 81 51 526.2 526.2 316.7 526.2 0.00 35 34 22891 -66.5 -91.5 2 25.0 -66.9 91 57 543.5 543.5 317.7 543.6 0.00 36 30 23660 -61.0 -89.8 1 28.9 -61.8 100 62 578.5 578.5 319.6 578.5 0.00 37 28 24092 -57.9 -88.9 1 31.0 -59.2 100 62 598.5 598.5 320.5 598.5 0.01 TRP 77 18054 -87.1 -91.3 46 4.2 -87.1 135 11 387.3 387.3 303.4 387.3 0.00 WND 30 23660 -61.0 -89.8 1 28.9 -61.8 100 62 578.5 578.5 319.6 578.5 0.00 Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 579.54 mb = 4725.81 m = 15504.44 ft Wetbulb zero: 593.81 mb = 4511.27 m = 14800.56 ft Precipitable water: 2.21 inches Sfc-500 mean rel hum: 76.54 % Est. max temperature: 33.53 C = 92.35 F Sfc-Lift cond lev (LCL): 971.60 mb = 339.41 m = 1113.54 ft T: 25.47 C 700-500 lapse rate: 6.59 C/km ThetaE index: 26.07 C Layer 850.0- 655.0 mb Conv cond level (CCL): 852.05 mb = 1488.02 m = 4881.91 ft Mean mixing ratio: 17.19 g/kg Conv temperature: 33.43 C = 92.18 F Cap Strength: 2.07 C Lifted Index: -5.27 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -3.97 C Lifted Index @700 mb: -0.73 C Showalter Index: -3.75 C Risk: Severe thunderstorms possible Total Totals Index: 50.50 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.90 C Cross Totals Index: 23.60 C K Index: 38.20 Risk: > 80 % chance of thunderstorms Sweat Index: 287.60 Risk: None Energy Index: -2.55 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1536.38 J/kg Max Up Vert Vel: 55.43 m/s Conv Inhibition (B-): 95.33 J/kg Cap Strength: 2.07 C Lift Cond Lev (LCL): 911.37 mb = 902.21 m = 2959.96 ft Lev Free Conv (LFC): 726.37 mb = 2849.74 m = 9349.42 ft Equ Level (EL): 146.37 mb = 14365.63 m = 47130.75 ft B at Equ Level: 1525.22 J/kg Max Parcel Lev (MPL): 86.37 mb = 17415.27 m = 57136.03 ft Wind level data Storm motion: 324 at 13 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 85 110 4 -3.8 1.4 | 136 16 -11.1 11.5 1 1000 85 30 4 -2.0 -3.5 | 126 12 -9.4 6.7 2 975 305 35 19 -10.9 -15.6 | 74 19 -18.3 -5.4 3 942 610 25 22 -9.3 -19.9 | 60 19 -16.7 -9.8 4 925 773 25 19 -8.0 -17.2 | 65 17 -15.4 -7.0 5 910 914 15 20 -5.2 -19.3 | 54 16 -12.5 -9.1 6 850 1509 360 16 -0.0 -16.0 | 52 9 -7.4 -5.8 7 849 1524 5 17 -1.5 -16.9 | 53 11 -8.8 -6.8 8 790 2134 330 15 7.5 -13.0 | 357 3 0.1 -2.8 9 762 2438 305 15 12.3 -8.6 | 252 5 4.9 1.6 10 709 3048 295 13 11.8 -5.5 | 223 6 4.4 4.7 11 700 3162 265 11 11.0 1.0 | 198 12 3.6 11.1 12 684 3353 260 12 11.8 2.1 | 200 13 4.5 12.3 13 634 3962 260 8 7.9 1.4 | 183 12 0.5 11.6 14 610 4267 260 12 11.8 2.1 | 200 13 4.5 12.3 15 588 4572 275 13 13.0 -1.1 | 212 11 5.6 9.0 16 566 4877 245 15 13.6 6.3 | 201 18 6.2 16.5 17 525 5486 240 28 24.2 14.0 | 215 29 16.9 24.2 18 506 5791 255 31 29.9 8.0 | 231 29 22.6 18.2 19 500 5880 260 30 29.5 5.2 | 235 27 22.2 15.4 20 486 6096 260 29 28.6 5.0 | 234 26 21.2 15.2 21 467 6401 275 17 16.9 -1.5 | 228 13 9.6 8.7 22 449 6706 300 17 14.7 -8.5 | 257 8 7.4 1.7 23 400 7590 345 4 1.0 -3.9 | 135 9 -6.3 6.3 24 398 7620 320 13 8.4 -10.0 | 257 1 1.0 0.2 25 382 7925 270 2 2.0 -0.0 | 152 12 -5.4 10.2 26 367 8230 240 5 4.3 2.5 | 167 13 -3.0 12.7 27 352 8534 230 11 8.4 7.1 | 184 17 1.1 17.3 28 324 9144 230 17 13.0 10.9 | 195 22 5.7 21.1 29 300 9700 220 10 6.4 7.7 | 177 18 -0.9 17.8 30 298 9754 220 10 6.4 7.7 | 177 18 -0.9 17.8 31 285 10058 185 6 0.5 6.0 | 157 18 -6.8 16.2 32 273 10363 140 10 -6.4 7.7 | 142 23 -13.8 17.8 33 250 10960 110 24 -22.6 8.2 | 122 35 -29.9 18.4 34 250 10973 115 18 -16.3 7.6 | 127 30 -23.7 17.8 35 228 11582 110 27 -25.4 9.2 | 121 38 -32.7 19.4 36 208 12192 110 20 -18.8 6.8 | 123 31 -26.2 17.0 37 200 12440 95 29 -28.9 2.5 | 109 38 -36.3 12.7 38 163 13716 90 44 -44.0 0.0 | 101 52 -51.4 10.2 39 150 14220 65 39 -35.3 -16.5 | 82 43 -42.7 -6.3 40 126 15240 20 25 -8.6 -23.5 | 50 21 -15.9 -13.3 41 120 15545 25 14 -5.9 -12.7 | 79 14 -13.3 -2.5 42 114 15850 70 13 -12.2 -4.4 | 106 20 -19.6 5.7 43 108 16154 80 11 -10.8 -1.9 | 114 20 -18.2 8.3 44 100 16600 335 13 5.5 -11.8 | 49 2 -1.9 -1.6 45 97 16764 335 11 4.6 -10.0 | 94 3 -2.7 0.2 46 82 17678 360 10 -0.0 -10.0 | 91 7 -7.4 0.2 47 78 17983 80 2 -2.0 -0.3 | 137 14 -9.3 9.8 48 77 18054 135 11 -7.8 7.8 | 140 23 -15.1 18.0 49 74 18288 140 10 -6.4 7.7 | 142 23 -13.8 17.8 50 70 18580 50 1 -0.8 -0.6 | 140 13 -8.1 9.5 51 70 18593 85 17 -16.9 -1.5 | 110 26 -24.3 8.7 52 66 18898 50 1 -0.8 -0.6 | 140 13 -8.1 9.5 53 54 20117 130 12 -9.2 7.7 | 137 24 -16.6 17.9 54 51 20422 130 11 -8.4 7.1 | 138 23 -15.8 17.3 55 50 20550 95 33 -32.9 2.9 | 108 42 -40.2 13.1 56 49 20726 95 19 -18.9 1.7 | 114 29 -26.3 11.8 57 42 21641 90 49 -49.0 0.0 | 100 57 -56.4 10.2 58 40 21946 80 50 -49.2 -8.7 | 92 57 -56.6 1.5 59 30 23660 100 62 -61.1 10.8 | 107 72 -68.4 20.9 60 27 24079 100 62 -61.1 10.8 | 107 72 -68.4 20.9 61 25 24384 100 61 -60.1 10.6 | 107 71 -67.4 20.8 Wind Parameters Mean winds (0-6000m): 294.1 at 16.8 knts Storm direction: 324.1 at 12.6 knts Shear (0-3000m) pos: 0.0 neg: 2.8 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 77.2 deg Storm rel helicity (0-3000m) pos: 5.6 neg: -117.0 tot: -111.4 m^2/s^2 ave: -37.1 10^-3 m/s^2 rel: -0.67 Storm rel vorticity (0-3000m) horiz: 9.7 stream: -6.5 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 17.82 Bulk Shear: 86.23 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 35 16 79 17| 0.0 22.3 22.3| 0.0 -82.0 -82.0 -164.0 -0.89| 23.9-21.2 1000 26 18 68 17| 0.0 10.2 10.2| 5.5 -96.0 -90.5 -90.5 -0.74| 15.9-11.7 1500 19 18 63 15| 0.0 6.3 6.3| 5.6 -97.7 -92.1 -61.4 -0.65| 12.2 -8.0 2000 12 17 58 13| 0.0 4.7 4.7| 5.6-105.2 -99.6 -49.8 -0.63| 11.3 -7.1 2500 3 17 51 11| 0.0 3.8 3.8| 5.6-111.1-105.5 -42.2 -0.67| 10.7 -7.1 3000 354 16 43 8| 0.0 2.8 2.8| 5.6-117.0-111.4 -37.1 -0.67| 9.7 -6.5 4000 339 15 29 4| 0.0 1.7 1.7| 10.3-134.4-124.0 -31.0 -0.64| 8.6 -5.5 5000 321 15 301 2| 0.5 2.1 2.5| 36.9-144.6-107.7 -21.5 -0.46| 8.7 -3.9 6000 294 17 247 9| 1.4 1.7 3.1|135.7-147.3 -11.6 -1.9 -0.24| 9.0 -2.2 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251205.12.gif