UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042212.upa.cvt Date: 1200Z 22 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 22 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 1001 85 24.0 23.0 94 1.0 23.3 130 6 297.1 300.3 296.4 349.0 17.94 1 1000 88 23.8 22.9 95 0.9 23.2 90 3 297.0 300.2 296.3 348.6 17.85 2 972 338 25.2 20.9 77 4.3 22.1 91 2 300.8 303.8 296.3 348.4 16.21 3 925 773 23.2 19.9 82 3.3 20.9 40 2 303.0 306.0 296.7 350.5 16.01 4 893 1080 21.0 19.3 90 1.7 19.8 15 2 303.8 306.8 296.9 351.3 15.98 5 850 1508 19.0 15.0 78 4.0 16.3 55 3 306.0 308.4 295.3 344.2 12.72 6 701 3143 10.8 6.4 74 4.4 8.1 116 14 314.3 316.0 294.6 341.2 8.64 7 700 3155 11.0 6.1 72 4.9 8.0 115 14 314.7 316.3 294.6 341.1 8.47 8 693 3239 11.0 5.0 66 6.0 7.4 115 14 315.6 317.1 294.4 340.4 7.92 9 589 4575 1.0 0.4 96 0.6 0.7 55 11 319.0 320.3 294.4 340.4 6.71 10 554 5067 -1.1 -1.1 100 0.0 -1.1 110 16 322.1 323.4 295.0 342.8 6.39 11 500 5880 -5.7 -7.4 88 1.7 -6.5 55 14 326.1 327.0 294.5 340.7 4.39 12 400 7600 -15.7 -18.0 82 2.3 -16.5 45 10 334.6 335.1 295.0 342.8 2.32 13 358 8427 -20.3 -22.6 82 2.3 -21.0 62 6 339.2 339.6 295.6 345.5 1.74 14 300 9710 -29.7 -32.2 79 2.5 -30.2 95 12 343.5 343.7 295.9 346.8 0.86 15 250 10990 -39.5 -43.2 68 3.7 -39.9 130 9 347.3 347.4 296.3 348.7 0.34 16 244 11155 -41.1 -44.4 70 3.3 -41.4 122 10 347.4 347.4 296.3 348.6 0.30 17 240 11267 -41.7 -49.7 42 8.0 -42.3 116 10 348.1 348.1 296.4 348.8 0.17 18 230 11553 -44.3 -53.3 36 9.0 -44.8 102 12 348.4 348.4 296.4 348.9 0.12 19 218 11908 -47.7 -50.8 70 3.1 -47.9 95 17 348.5 348.6 296.5 349.2 0.17 20 209 12184 -49.5 -55.5 49 6.0 -49.7 95 15 350.0 350.0 296.7 350.4 0.10 21 200 12470 -52.3 -56.4 61 4.1 -52.4 95 13 349.9 350.0 296.7 350.3 0.09 22 198 12535 -52.9 -56.6 64 3.7 -53.0 95 13 350.0 350.0 296.7 350.4 0.09 23 191 12766 -55.1 -59.2 60 4.1 -55.2 95 13 350.1 350.1 296.7 350.4 0.07 24 181 13108 -56.9 -67.9 24 11.0 -57.1 81 15 352.6 352.6 297.2 352.7 0.02 25 150 14270 -66.9 -72.9 42 6.0 -67.0 345 6 354.8 354.8 297.7 354.9 0.01 26 141 14641 -70.3 -75.2 48 4.9 -70.4 326 7 355.2 355.2 297.7 355.3 0.01 27 137 14812 -71.7 -78.7 34 7.0 -71.8 317 7 355.7 355.7 297.8 355.7 0.01 28 122 15492 -74.1 -86.1 14 12.0 -74.1 281 9 363.3 363.3 299.4 363.3 0.00 29 100 16630 -81.7 -87.7 35 6.0 -81.7 285 9 369.9 369.9 300.5 369.9 0.00 30 95 16916 -82.3 -89.3 29 7.0 -82.3 240 5 374.2 374.2 301.3 374.2 0.00 31 92 17096 -79.9 -87.9 25 8.0 -79.9 216 7 382.4 382.4 302.6 382.4 0.00 32 84 17607 -81.3 -89.3 25 8.0 -81.3 184 11 389.6 389.6 303.8 389.6 0.00 33 81 17813 -76.9 -88.9 13 12.0 -76.9 241 11 402.7 402.7 305.6 402.7 0.00 34 71 18577 -72.5 -90.5 5 18.0 -72.6 309 25 427.5 427.5 308.6 427.5 0.00 35 70 18660 -72.9 -89.9 6 17.0 -73.0 290 23 428.4 428.4 308.7 428.4 0.00 36 61 19466 -74.3 -90.3 7 16.0 -74.4 269 22 442.5 442.5 310.1 442.5 0.00 37 55 20072 -73.1 -91.1 5 18.0 -73.2 251 19 458.6 458.6 311.7 458.6 0.00 38 50 20640 -66.9 -91.9 2 25.0 -67.1 260 30 485.8 485.8 313.9 485.8 0.00 39 49 20762 -65.7 -90.7 2 25.0 -66.0 264 22 491.5 491.5 314.3 491.5 0.00 40 45 21277 -67.5 -91.5 2 24.0 -67.7 247 30 499.2 499.2 314.9 499.2 0.00 41 42 21696 -63.7 -90.7 1 27.0 -64.1 261 35 518.6 518.6 316.2 518.6 0.00 42 39 22148 -65.9 -90.9 2 25.0 -66.2 266 30 524.1 524.1 316.6 524.2 0.00 43 32 23361 -61.5 -90.5 1 29.0 -62.2 199 16 566.4 566.4 319.0 566.4 0.00 44 30 23760 -62.9 -90.9 1 28.0 -63.6 305 10 573.2 573.2 319.3 573.2 0.00 45 29 23969 -62.5 -91.5 1 29.0 -63.2 308 10 579.8 579.9 319.6 579.9 0.00 46 27 24418 -54.9 -88.9 1 34.0 -56.6 39 16 613.2 613.2 321.2 613.2 0.01 47 26 24658 -56.9 -88.9 1 32.0 -58.4 99 20 614.1 614.2 321.2 614.2 0.01 48 20 26330 -54.1 -89.1 1 35.0 -56.5 100 39 670.6 670.6 323.4 670.6 0.01 49 19 26661 -52.1 -88.1 1 36.0 -55.1 105 41 686.7 686.7 324.0 686.8 0.01 TRP 95 16916 -82.3 -89.3 29 7.0 -82.3 240 5 374.2 374.2 301.3 374.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5792.00 m Freezing level: 572.33 mb = 4808.85 m = 15776.87 ft Wetbulb zero: 575.77 mb = 4756.97 m = 15606.65 ft Precipitable water: 2.31 inches Sfc-500 mean rel hum: 83.37 % Est. max temperature: 32.93 C = 91.28 F Sfc-Lift cond lev (LCL): 986.92 mb = 203.76 m = 668.50 ft T: 24.45 C 700-500 lapse rate: 6.13 C/km ThetaE index: 10.96 C Layer 850.0- 554.0 mb Conv cond level (CCL): 846.51 mb = 1542.93 m = 5062.04 ft Mean mixing ratio: 16.35 g/kg Conv temperature: 33.16 C = 91.69 F Cap Strength: 2.02 C Lifted Index: -2.61 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.13 C Lifted Index @700 mb: 0.52 C Showalter Index: -0.62 C Risk: Thunderstorms probable Total Totals Index: 45.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.70 C Cross Totals Index: 20.70 C K Index: 34.80 Risk: 60-80 % chance of thunderstorms Sweat Index: 200.00 Risk: None Energy Index: -0.72 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 517.93 J/kg Max Up Vert Vel: 32.18 m/s Conv Inhibition (B-): 97.23 J/kg Cap Strength: 2.02 C Lift Cond Lev (LCL): 907.19 mb = 942.75 m = 3092.96 ft Lev Free Conv (LFC): 662.19 mb = 3612.58 m = 11852.14 ft Equ Level (EL): 232.19 mb = 11489.11 m = 37693.46 ft B at Equ Level: 517.21 J/kg Max Parcel Lev (MPL): 122.19 mb = 15483.04 m = 50796.74 ft Wind level data Storm motion: 121 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 1001 85 130 6 -4.6 3.9 | 239 1 0.9 0.5 1 1000 88 90 3 -3.0 0.0 | 324 4 2.5 -3.3 2 976 305 95 2 -2.0 0.2 | 312 5 3.5 -3.2 3 942 610 60 3 -2.6 -1.5 | 329 6 2.9 -4.8 4 925 773 40 2 -1.3 -1.5 | 319 6 4.2 -4.9 5 910 914 360 2 -0.0 -2.0 | 314 8 5.5 -5.3 6 850 1508 55 3 -2.5 -1.7 | 329 6 3.0 -5.1 7 790 2134 60 4 -3.5 -2.0 | 340 6 2.0 -5.3 8 762 2438 75 5 -4.8 -1.3 | 352 5 0.6 -4.6 9 735 2743 145 12 -6.9 9.8 | 168 7 -1.4 6.5 10 700 3155 115 14 -12.7 5.9 | 110 8 -7.2 2.6 11 683 3353 115 14 -12.7 5.9 | 110 8 -7.2 2.6 12 610 4267 60 5 -4.3 -2.5 | 349 6 1.1 -5.8 13 588 4572 55 11 -9.0 -6.3 | 20 10 -3.6 -9.7 14 566 4877 110 18 -16.9 6.2 | 104 12 -11.5 2.8 15 545 5182 110 15 -14.1 5.1 | 102 9 -8.6 1.8 16 525 5486 70 13 -12.2 -4.4 | 41 10 -6.8 -7.8 17 506 5791 80 12 -11.8 -2.1 | 50 8 -6.4 -5.4 18 500 5880 55 14 -11.5 -8.0 | 28 13 -6.0 -11.4 19 486 6096 55 14 -11.5 -8.0 | 28 13 -6.0 -11.4 20 400 7600 45 10 -7.1 -7.1 | 9 11 -1.6 -10.4 21 383 7925 30 10 -5.0 -8.7 | 358 12 0.5 -12.0 22 367 8230 35 11 -6.3 -9.0 | 4 12 -0.8 -12.4 23 352 8534 80 3 -3.0 -0.5 | 327 5 2.5 -3.9 24 338 8839 90 10 -10.0 0.0 | 54 6 -4.5 -3.3 25 300 9710 95 12 -12.0 1.0 | 71 7 -6.5 -2.3 26 285 10058 90 11 -11.0 0.0 | 59 6 -5.5 -3.3 27 250 10990 130 9 -6.9 5.8 | 150 3 -1.4 2.4 28 239 11278 115 10 -9.1 4.2 | 104 4 -3.6 0.9 29 229 11582 100 12 -11.8 2.1 | 79 6 -6.4 -1.3 30 218 11887 95 17 -16.9 1.5 | 81 12 -11.5 -1.9 31 200 12470 95 13 -13.0 1.1 | 74 8 -7.5 -2.2 32 190 12802 95 13 -13.0 1.1 | 74 8 -7.5 -2.2 33 181 13106 80 15 -14.8 -2.6 | 57 11 -9.3 -6.0 34 172 13411 30 10 -5.0 -8.7 | 358 12 0.5 -12.0 35 150 14270 345 6 1.6 -5.8 | 323 12 7.0 -9.1 36 109 16154 245 10 9.1 4.2 | 267 15 14.5 0.9 37 100 16630 285 9 8.7 -2.3 | 292 15 14.2 -5.7 38 98 16764 300 10 8.7 -5.0 | 301 16 14.1 -8.3 39 95 16916 240 5 4.3 2.5 | 275 10 9.8 -0.8 40 88 17374 180 11 0.0 11.0 | 215 9 5.5 7.7 41 83 17678 185 11 1.0 11.0 | 220 10 6.4 7.6 42 79 17983 300 11 9.5 -5.5 | 301 17 15.0 -8.8 43 75 18288 290 14 13.2 -4.8 | 294 20 18.6 -8.1 44 71 18593 310 26 19.9 -16.7 | 308 32 25.4 -20.1 45 70 18660 290 23 21.6 -7.9 | 292 29 27.1 -11.2 46 67 18898 285 25 24.1 -6.5 | 288 31 29.6 -9.8 47 55 20117 250 19 17.9 6.5 | 262 24 23.3 3.2 48 50 20640 260 30 29.5 5.2 | 267 35 35.0 1.9 49 49 20726 265 21 20.9 1.8 | 273 26 26.4 -1.5 50 45 21336 245 31 28.1 13.1 | 254 35 33.6 9.8 51 42 21641 260 36 35.5 6.3 | 266 41 40.9 2.9 52 37 22555 270 25 25.0 -0.0 | 276 31 30.5 -3.3 53 35 22860 240 28 24.2 14.0 | 250 32 29.7 10.7 54 31 23470 190 13 2.3 12.8 | 219 12 7.7 9.5 55 30 23760 305 10 8.2 -5.7 | 304 16 13.7 -9.1 56 29 24079 310 10 7.7 -6.4 | 307 16 13.1 -9.8 57 26 24689 105 20 -19.3 5.2 | 98 14 -13.9 1.8 58 25 24994 90 22 -22.0 0.0 | 79 17 -16.5 -3.3 59 21 25908 100 25 -24.6 4.3 | 93 19 -19.2 1.0 60 20 26213 120 32 -27.7 16.0 | 120 26 -22.3 12.7 61 20 26330 100 39 -38.4 6.8 | 96 33 -32.9 3.4 62 19 26518 105 41 -39.6 10.6 | 102 35 -34.1 7.3 63 17 26822 95 34 -33.9 3.0 | 89 28 -28.4 -0.4 Wind Parameters Mean winds (0-6000m): 91.5 at 8.5 knts Storm direction: 121.5 at 6.4 knts Shear (0-3000m) pos: 2.5 neg: 1.2 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): -120.5 deg Storm rel helicity (0-3000m) pos: 17.8 neg: -11.9 tot: 5.9 m^2/s^2 ave: 2.0 10^-3 m/s^2 rel: 0.39 Storm rel vorticity (0-3000m) horiz: 5.6 stream: 2.2 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 106.78 Bulk Shear: 4.85 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 84 3 321 5| 0.0 5.7 5.7| 2.9 -0.5 2.4 4.8 0.66| 7.3 4.8 1000 60 2 323 6| 0.0 3.7 3.7| 3.6 -2.8 0.8 0.8 0.36| 5.2 1.9 1500 54 2 324 6| 0.7 2.5 3.2| 6.0 -2.8 3.2 2.2 0.41| 4.1 1.7 2000 55 3 327 6| 0.7 1.9 2.6| 7.3 -2.8 4.5 2.2 0.45| 3.3 1.5 2500 63 3 332 5| 1.8 1.5 3.3| 12.8 -2.8 10.0 4.0 0.60| 4.1 2.5 3000 94 5 346 3| 2.5 1.2 3.7| 17.8 -11.9 5.9 2.0 0.39| 5.6 2.2 4000 100 6 21 2| 1.9 2.3 4.1| 17.8 -30.8 -13.0 -3.3 0.03| 5.7 0.1 5000 97 7 39 3| 2.7 2.1 4.8| 67.2 -34.2 33.0 6.6 0.26| 7.1 1.9 6000 91 9 45 4| 2.3 2.9 5.2| 70.5 -68.7 1.9 0.3 0.06| 7.6 0.5 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250422.12.gif