UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041612.upa.cvt Date: 1200Z 16 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 16 APR 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 1002 85 23.4 23.0 98 0.4 23.1 130 2 296.4 299.6 296.2 348.1 17.93 1 1000 97 23.4 23.0 98 0.4 23.1 75 5 296.5 299.8 296.3 348.4 17.96 2 976 310 22.2 21.9 98 0.3 22.0 70 12 297.4 300.5 296.0 347.2 17.19 3 961 446 23.2 18.7 76 4.5 20.1 72 9 299.7 302.3 294.7 341.4 14.26 4 946 583 22.6 21.3 92 1.3 21.7 75 7 300.5 303.6 296.8 350.7 17.10 5 925 780 22.8 18.5 77 4.3 19.8 95 5 302.6 305.3 295.7 345.9 14.64 6 908 942 23.0 14.0 57 9.0 17.0 93 5 304.4 306.5 293.7 337.7 11.13 7 850 1515 19.6 11.6 60 8.0 14.4 55 7 306.7 308.6 293.6 337.3 10.15 8 711 3031 10.0 6.5 79 3.5 7.9 65 9 312.2 313.8 294.0 338.7 8.57 9 700 3161 9.8 5.8 76 4.0 7.4 70 9 313.3 314.9 294.1 339.1 8.29 10 631 4018 6.0 1.9 75 4.1 3.7 99 12 318.4 319.8 294.5 340.7 6.98 11 509 5749 -3.9 -5.8 87 1.9 -4.8 65 5 326.6 327.6 295.0 342.8 4.88 12 500 5890 -4.5 -6.6 85 2.1 -5.5 40 4 327.6 328.5 295.1 343.1 4.67 13 462 6507 -8.5 -11.6 78 3.1 -9.8 107 11 330.1 330.7 294.7 341.7 3.41 14 448 6745 -10.1 -10.8 95 0.7 -10.4 113 9 331.0 331.7 295.2 343.7 3.75 15 400 7610 -15.3 -18.5 76 3.2 -16.4 135 2 335.1 335.6 295.0 343.0 2.22 16 389 7821 -15.7 -20.7 65 5.0 -17.3 145 2 337.3 337.7 295.3 344.1 1.89 17 356 8484 -21.5 -23.5 84 2.0 -22.1 158 3 338.1 338.5 295.3 344.0 1.62 18 317 9334 -26.7 -34.7 47 8.0 -28.1 132 10 342.3 342.4 295.4 344.8 0.63 19 300 9730 -30.1 -36.1 56 6.0 -31.0 120 13 343.0 343.1 295.6 345.2 0.58 20 298 9778 -30.7 -36.7 56 6.0 -31.6 120 13 342.8 342.9 295.5 344.9 0.55 21 261 10705 -37.9 -47.9 34 10.0 -38.7 104 19 345.4 345.5 295.8 346.2 0.19 22 250 11000 -40.5 -48.5 42 8.0 -41.1 90 20 345.9 345.9 295.9 346.6 0.19 23 225 11708 -46.7 -50.8 63 4.1 -46.9 74 24 346.9 347.0 296.1 347.6 0.16 24 201 12448 -51.5 -64.5 20 13.0 -51.8 84 28 350.7 350.7 296.8 350.9 0.03 25 200 12480 -51.3 -65.3 17 14.0 -51.7 85 28 351.5 351.5 297.0 351.7 0.03 26 194 12677 -51.9 -72.9 6 21.0 -52.3 80 24 353.6 353.7 297.4 353.7 0.01 27 186 12948 -53.7 -72.7 8 19.0 -54.0 80 16 355.0 355.0 297.7 355.1 0.01 28 150 14290 -65.7 -78.7 15 13.0 -65.8 220 13 356.9 356.9 298.1 356.9 0.01 29 146 14454 -66.7 -80.7 12 14.0 -66.8 223 12 357.9 357.9 298.3 358.0 0.00 30 125 15373 -75.3 -78.8 58 3.5 -75.3 225 20 358.6 358.6 298.4 358.6 0.01 31 117 15752 -78.9 -81.8 62 2.9 -78.9 214 19 358.8 358.8 298.5 358.8 0.00 32 101 16575 -85.1 -89.6 44 4.5 -85.1 165 5 362.3 362.3 299.1 362.3 0.00 33 100 16630 -85.1 -89.7 44 4.6 -85.1 165 5 363.3 363.3 299.4 363.3 0.00 34 96 16855 -85.1 -91.1 33 6.0 -85.1 152 10 367.6 367.6 300.1 367.6 0.00 35 91 17155 -78.7 -86.7 26 8.0 -78.7 129 10 385.9 385.9 303.2 386.0 0.00 36 85 17541 -81.5 -88.5 29 7.0 -81.5 99 11 387.9 387.9 303.5 387.9 0.00 37 77 18105 -75.1 -88.1 11 13.0 -75.2 42 12 412.3 412.3 306.8 412.3 0.00 38 70 18660 -74.1 -89.1 8 15.0 -74.2 260 35 425.9 425.9 308.4 425.9 0.00 39 68 18828 -73.3 -89.3 7 16.0 -73.4 252 35 431.1 431.1 309.0 431.1 0.00 40 65 19090 -75.1 -90.1 8 15.0 -75.2 240 36 432.8 432.8 309.1 432.8 0.00 41 54 20165 -73.3 -90.3 6 17.0 -73.4 259 26 460.5 460.5 311.8 460.5 0.00 42 52 20387 -70.1 -90.1 4 20.0 -70.2 262 25 473.0 473.0 312.9 473.0 0.00 43 50 20620 -69.3 -90.3 3 21.0 -69.5 265 23 480.2 480.2 313.5 480.2 0.00 44 42 21670 -66.7 -89.7 3 23.0 -67.0 271 28 511.2 511.2 315.7 511.2 0.00 45 37 22447 -62.1 -89.1 2 27.0 -62.7 249 12 541.9 541.9 317.6 541.9 0.00 46 30 23750 -60.7 -87.7 2 27.0 -61.6 350 15 579.2 579.2 319.6 579.2 0.01 47 29 23961 -59.1 -88.1 1 29.0 -60.2 353 14 589.2 589.2 320.1 589.2 0.01 48 25 24887 -60.9 -87.9 2 27.0 -61.9 178 8 609.6 609.6 321.0 609.6 0.01 49 22 25692 -54.7 -85.7 1 31.0 -56.8 95 25 650.8 650.8 322.7 650.8 0.01 50 20 26300 -55.7 -85.7 1 30.0 -57.8 85 42 665.7 665.7 323.3 665.8 0.01 51 19 26627 -55.3 -85.3 1 30.0 -57.5 85 44 676.8 676.8 323.7 676.9 0.01 TRP 101 16575 -85.1 -89.6 44 4.5 -85.1 165 5 362.3 362.3 299.1 362.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5793.00 m Freezing level: 557.06 mb = 5067.23 m = 16624.57 ft Wetbulb zero: 578.55 mb = 4717.31 m = 15476.55 ft Precipitable water: 2.09 inches Sfc-500 mean rel hum: 75.60 % Est. max temperature: 33.62 C = 92.52 F Sfc-Lift cond lev (LCL): 996.60 mb = 126.87 m = 416.24 ft T: 23.23 C 700-500 lapse rate: 5.24 C/km ThetaE index: 13.37 C Layer 925.0- 711.0 mb Conv cond level (CCL): 814.44 mb = 1877.86 m = 6160.88 ft Mean mixing ratio: 15.43 g/kg Conv temperature: 35.04 C = 95.08 F Cap Strength: 3.97 C Lifted Index: 0.11 C Risk: Showers probable Lifted Index @300 mb: 0.76 C Lifted Index @700 mb: 0.46 C Showalter Index: 3.45 C Risk: None Total Totals Index: 40.20 C Risk: None Vertical Totals Index: 24.10 C Cross Totals Index: 16.10 C K Index: 31.70 Risk: 60-80 % chance of thunderstorms Sweat Index: 157.20 Risk: None Energy Index: 1.14 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 51.28 J/kg Max Up Vert Vel: 10.13 m/s Conv Inhibition (B-): 202.40 J/kg Cap Strength: 3.89 C Lift Cond Lev (LCL): 909.44 mb = 928.11 m = 3044.94 ft Lev Free Conv (LFC): 524.44 mb = 5508.34 m = 18071.75 ft Equ Level (EL): 504.44 mb = 5820.15 m = 19094.75 ft B at Equ Level: 33.68 J/kg Max Parcel Lev (MPL): 274.44 mb = 10353.68 m = 33968.36 ft Wind level data Storm motion: 118 at 6 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 1002 85 130 2 -1.5 1.3 | 292 5 4.2 -1.7 1 1000 97 75 5 -4.8 -1.3 | 348 4 0.9 -4.3 2 977 305 70 12 -11.3 -4.1 | 38 9 -5.5 -7.1 3 943 610 75 6 -5.8 -1.6 | 1 5 -0.1 -4.6 4 925 780 95 5 -5.0 0.4 | 344 3 0.8 -2.6 5 911 914 95 5 -5.0 0.4 | 344 3 0.8 -2.6 6 850 1515 55 7 -5.7 -4.0 | 0 7 -0.0 -7.0 7 790 2134 10 8 -1.4 -7.9 | 338 12 4.3 -10.9 8 762 2438 45 9 -6.4 -6.4 | 4 9 -0.6 -9.4 9 700 3161 70 9 -8.5 -3.1 | 24 7 -2.7 -6.1 10 634 3962 100 12 -11.8 2.1 | 81 6 -6.1 -0.9 11 611 4267 90 11 -11.0 0.0 | 60 6 -5.3 -3.0 12 588 4572 155 12 -5.1 10.9 | 185 8 0.7 7.9 13 546 5182 160 10 -3.4 9.4 | 200 7 2.3 6.4 14 500 5890 40 4 -2.6 -3.1 | 332 7 3.2 -6.1 15 487 6096 95 7 -7.0 0.6 | 27 3 -1.2 -2.4 16 468 6401 105 12 -11.6 3.1 | 91 6 -5.9 0.1 17 400 7610 135 2 -1.4 1.4 | 290 5 4.3 -1.6 18 368 8230 165 1 -0.3 1.0 | 290 6 5.5 -2.0 19 300 9730 120 13 -11.3 6.5 | 122 7 -5.5 3.5 20 286 10058 120 15 -13.0 7.5 | 122 9 -7.3 4.5 21 274 10363 90 17 -17.0 0.0 | 75 12 -11.3 -3.0 22 262 10668 105 19 -18.4 4.9 | 99 13 -12.6 1.9 23 250 11000 90 20 -20.0 0.0 | 78 15 -14.3 -3.0 24 219 11887 70 25 -23.5 -8.6 | 57 21 -17.8 -11.6 25 200 12480 85 28 -27.9 -2.4 | 76 23 -22.2 -5.4 26 199 12497 80 29 -28.6 -5.0 | 71 24 -22.8 -8.0 27 181 13106 80 11 -10.8 -1.9 | 46 7 -5.1 -4.9 28 164 13716 115 2 -1.8 0.8 | 299 4 3.9 -2.2 29 150 14290 220 13 8.4 10.0 | 244 16 14.1 7.0 30 149 14326 220 10 6.4 7.7 | 249 13 12.2 4.7 31 134 14935 235 18 14.7 10.3 | 250 22 20.5 7.3 32 121 15545 220 21 13.5 16.1 | 236 23 19.2 13.1 33 109 16154 200 15 5.1 14.1 | 224 16 10.9 11.1 34 101 16575 165 5 -1.3 4.8 | 248 5 4.4 1.8 35 100 16630 165 5 -1.3 4.8 | 248 5 4.4 1.8 36 98 16764 160 10 -3.4 9.4 | 200 7 2.3 6.4 37 83 17678 90 11 -11.0 0.0 | 60 6 -5.3 -3.0 38 79 17983 110 10 -9.4 3.4 | 96 4 -3.7 0.4 39 75 18288 315 14 9.9 -9.9 | 310 20 15.6 -12.9 40 71 18593 275 33 32.9 -2.9 | 279 39 38.6 -5.9 41 70 18660 260 35 34.5 6.1 | 266 40 40.2 3.1 42 64 19202 235 36 29.5 20.6 | 243 39 35.2 17.6 43 57 19812 255 29 28.0 7.5 | 262 34 33.7 4.5 44 50 20620 265 23 22.9 2.0 | 272 29 28.6 -1.0 45 49 20726 250 26 24.4 8.9 | 259 31 30.2 5.9 46 47 21031 265 21 20.9 1.8 | 273 27 26.7 -1.2 47 44 21336 285 25 24.1 -6.5 | 288 31 29.9 -9.5 48 40 21946 260 30 29.5 5.2 | 266 35 35.3 2.2 49 38 22250 245 15 13.6 6.3 | 260 20 19.3 3.3 50 36 22555 250 11 10.3 3.8 | 267 16 16.1 0.8 51 35 22860 155 2 -0.8 1.8 | 284 5 4.9 -1.2 52 33 23165 30 11 -5.5 -9.5 | 359 13 0.2 -12.5 53 30 23750 350 15 2.6 -14.8 | 335 20 8.3 -17.8 54 30 23774 350 10 1.7 -9.8 | 330 15 7.5 -12.9 55 28 24079 355 17 1.5 -16.9 | 340 21 7.2 -19.9 56 27 24384 330 11 5.5 -9.5 | 318 17 11.2 -12.5 57 26 24689 205 4 1.7 3.6 | 265 7 7.4 0.6 58 25 24994 165 10 -2.6 9.7 | 205 7 3.1 6.7 59 22 25603 100 18 -17.7 3.1 | 91 12 -12.0 0.1 60 21 25908 85 39 -38.9 -3.4 | 79 34 -33.1 -6.4 61 20 26300 85 42 -41.8 -3.7 | 80 37 -36.1 -6.7 62 19 26518 85 44 -43.8 -3.8 | 80 39 -38.1 -6.8 63 17 26822 80 40 -39.4 -6.9 | 74 35 -33.7 -9.9 Wind Parameters Mean winds (0-6000m): 87.6 at 8.6 knts Storm direction: 117.6 at 6.5 knts Shear (0-3000m) pos: 1.3 neg: 1.7 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 89.5 deg Storm rel helicity (0-3000m) pos: 29.0 neg: -14.9 tot: 14.1 m^2/s^2 ave: 4.7 10^-3 m/s^2 rel: 0.26 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 1.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 67.35 Bulk Shear: 0.76 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 72 9 24 6| 0.0 5.8 5.8| 10.4 -5.1 5.3 10.6 0.41| 16.6 6.8 1000 78 7 14 5| 0.7 2.9 3.6| 11.0 -6.4 4.6 4.6 0.30| 10.2 3.1 1500 73 7 9 5| 0.5 2.9 3.3| 11.4 -7.3 4.1 2.7 0.24| 8.2 2.0 2000 62 7 4 6| 0.3 2.6 2.9| 11.4 -14.9 -3.5 -1.7 0.10| 7.4 0.7 2500 55 7 2 7| 1.1 2.1 3.2| 24.9 -14.9 10.0 4.0 0.23| 7.1 1.6 3000 56 8 4 7| 1.3 1.7 3.1| 29.0 -14.9 14.1 4.7 0.26| 6.4 1.7 4000 67 8 17 7| 1.7 1.3 3.0| 39.4 -16.1 23.4 5.8 0.35| 5.7 2.0 5000 82 9 37 5| 1.9 1.0 2.9| 59.4 -17.2 42.1 8.4 0.47| 6.2 2.9 6000 88 9 41 4| 1.6 1.7 3.3| 64.9 -27.1 37.8 6.3 0.26| 7.0 1.8 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250416.12.gif