UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042300.upa.cvt Date: 0000Z 23 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 23 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 ------------------------------------------------------------------------------- 0 1000 57 100 2 SFC 997 85 29.0 24.0 74 5.0 25.3 100 2 302.4 305.9 298.5 359.2 19.17 2 925 750 25.2 20.2 74 5.0 21.6 320 1 305.1 308.1 297.4 353.9 16.32 3 850 1489 20.0 16.9 82 3.1 17.8 170 3 307.1 309.8 296.7 350.5 14.40 4 740 2671 12.2 10.9 92 1.3 11.4 66 8 311.0 313.1 295.6 345.2 11.14 5 700 3137 10.4 6.4 76 4.0 8.0 45 9 314.0 315.7 294.6 340.9 8.65 6 687 3293 9.8 6.3 79 3.5 7.6 66 10 315.0 316.7 294.9 342.4 8.75 7 678 3403 9.4 4.4 71 5.0 6.4 71 11 315.8 317.3 294.4 340.2 7.76 8 669 3514 9.4 -1.6 46 11.0 3.5 62 13 317.0 318.0 292.6 333.2 5.09 9 659 3639 8.6 1.6 61 7.0 4.6 52 14 317.4 318.7 293.9 338.2 6.53 10 642 3855 8.2 -6.8 34 15.0 1.0 65 12 319.4 320.1 292.0 331.1 3.58 11 603 4371 5.0 -1.0 65 6.0 1.7 72 13 321.4 322.6 294.4 340.6 5.91 12 595 4480 4.8 -9.2 35 14.0 -1.6 69 12 322.4 323.1 292.6 333.1 3.20 13 582 4660 3.6 -2.4 65 6.0 0.4 66 12 323.1 324.2 294.6 341.1 5.52 14 570 4829 2.6 -4.4 60 7.0 -1.0 69 11 323.8 324.8 294.3 339.8 4.85 15 548 5147 1.4 -23.6 14 25.0 -6.8 74 10 326.1 326.3 291.6 329.8 1.04 16 523 5522 -1.5 -7.5 64 6.0 -4.4 66 10 327.0 327.8 294.6 340.9 4.16 17 500 5880 -3.1 -17.1 33 14.0 -8.4 85 7 329.3 329.7 293.4 336.2 2.00 18 499 5896 -3.3 -17.3 33 14.0 -8.5 84 7 329.2 329.6 293.3 336.1 1.97 19 477 6250 -6.1 -13.1 58 7.0 -9.0 79 5 330.0 330.6 294.3 340.0 2.92 20 437 6932 -8.3 -34.3 10 26.0 -14.5 103 11 335.6 335.7 293.7 337.4 0.48 21 408 7459 -12.7 -25.7 33 13.0 -16.4 100 13 336.6 336.8 294.5 340.8 1.16 22 400 7610 -13.5 -32.5 19 19.0 -18.0 100 14 337.4 337.6 294.3 339.8 0.62 23 391 7782 -14.7 -40.7 9 26.0 -19.5 85 14 338.1 338.1 294.1 339.2 0.28 24 388 7840 -15.3 -26.3 38 11.0 -18.3 87 14 338.0 338.3 294.8 342.3 1.15 25 379 8017 -16.5 -24.5 50 8.0 -18.8 93 14 338.7 339.0 295.2 343.8 1.39 26 370 8197 -17.5 -35.5 19 18.0 -21.2 99 13 339.7 339.8 294.7 341.7 0.50 27 364 8319 -18.3 -28.3 41 10.0 -20.8 107 13 340.3 340.5 295.3 344.1 1.02 28 315 9380 -25.9 -46.9 12 21.0 -28.5 95 10 344.0 344.1 295.4 344.8 0.18 29 300 9730 -29.1 -45.1 20 16.0 -31.0 95 11 344.4 344.4 295.6 345.3 0.23 30 270 10476 -35.3 -46.3 32 11.0 -36.4 104 13 345.9 345.9 295.9 346.8 0.22 31 250 11010 -39.1 -54.1 19 15.0 -40.1 70 19 347.9 348.0 296.3 348.3 0.10 32 218 11927 -47.3 -59.3 24 12.0 -47.7 53 16 349.2 349.2 296.5 349.4 0.06 33 206 12298 -49.7 -56.7 44 7.0 -50.0 76 12 351.1 351.1 297.0 351.5 0.09 34 200 12490 -50.9 -60.9 30 10.0 -51.2 115 6 352.2 352.2 297.1 352.4 0.05 35 193 12722 -52.9 -63.9 25 11.0 -53.2 119 4 352.6 352.6 297.2 352.7 0.04 36 165 13715 -61.9 -66.9 51 5.0 -62.0 174 8 353.7 353.7 297.4 353.8 0.03 37 158 13983 -64.1 -75.1 21 11.0 -64.2 190 9 354.4 354.4 297.5 354.4 0.01 38 150 14300 -66.3 -77.3 20 11.0 -66.4 210 11 355.9 355.9 297.9 355.9 0.01 39 145 14504 -68.1 -78.1 23 10.0 -68.2 207 10 356.2 356.2 298.0 356.2 0.01 40 100 16650 -82.9 -87.6 44 4.7 -82.9 235 12 367.6 367.6 300.1 367.6 0.00 41 96 16876 -84.5 -88.6 48 4.1 -84.5 265 9 368.7 368.7 300.4 368.8 0.00 42 70 18640 -79.5 -90.5 15 11.0 -79.6 285 35 414.3 414.3 307.0 414.3 0.00 43 64 19157 -74.3 -91.3 6 17.0 -74.4 276 27 436.5 436.5 309.5 436.5 0.00 44 62 19345 -69.9 -91.9 3 22.0 -70.0 270 21 450.2 450.2 310.8 450.2 0.00 45 61 19444 -63.3 -92.3 1 29.0 -63.6 266 18 467.0 467.0 312.4 467.0 0.00 46 50 20660 -66.9 -89.9 3 23.0 -67.1 240 24 485.8 485.8 313.9 485.8 0.00 47 46 21164 -67.1 -90.1 2 23.0 -67.4 235 22 497.1 497.1 314.7 497.1 0.00 48 40 21999 -71.9 -91.9 3 20.0 -72.1 247 26 505.3 505.3 315.3 505.3 0.00 49 38 22302 -71.3 -92.3 3 21.0 -71.5 253 26 514.3 514.3 315.9 514.3 0.00 50 34 22974 -63.1 -91.1 1 28.0 -63.7 269 12 552.5 552.5 318.2 552.5 0.00 51 32 23349 -61.3 -90.3 1 29.0 -62.0 279 11 567.0 567.0 319.0 567.0 0.00 52 30 23750 -60.9 -89.9 1 29.0 -61.7 290 9 578.6 578.6 319.6 578.6 0.00 53 29 23961 -60.9 -89.9 1 29.0 -61.7 148 3 584.3 584.3 319.9 584.3 0.00 54 27 24413 -53.5 -86.5 1 33.0 -55.5 92 8 617.1 617.1 321.3 617.2 0.01 55 24 25164 -57.1 -88.1 1 31.0 -58.6 57 17 627.8 627.8 321.8 627.8 0.01 56 23 25436 -53.5 -86.5 1 33.0 -55.8 69 17 646.1 646.1 322.5 646.1 0.01 57 20 26340 -50.9 -85.9 1 35.0 -54.1 82 22 680.4 680.4 323.8 680.5 0.01 TRP 96 16876 -84.5 -88.6 48 4.1 -84.5 265 9 368.7 368.7 300.4 368.8 0.00 WND Sounding variables and indices 1000-500 mb thick: 5823.00 m Freezing level: 535.93 mb = 5328.25 m = 17480.93 ft Wetbulb zero: 598.88 mb = 4426.61 m = 14522.84 ft Precipitable water: 2.12 inches Sfc-500 mean rel hum: 66.31 % Est. max temperature: 33.79 C = 92.81 F Sfc-Lift cond lev (LCL): 927.68 mb = 724.35 m = 2376.44 ft T: 25.35 C 700-500 lapse rate: 4.92 C/km ThetaE index: 18.27 C Layer 925.0- 687.0 mb Conv cond level (CCL): 843.77 mb = 1551.75 m = 5091.00 ft Mean mixing ratio: 17.23 g/kg Conv temperature: 33.90 C = 93.02 F Cap Strength: 1.92 C Lifted Index: -2.07 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.69 C Lifted Index @700 mb: -1.69 C Showalter Index: -0.31 C Risk: Thunderstorms probable Total Totals Index: 43.10 C Risk: None Vertical Totals Index: 23.10 C Cross Totals Index: 20.00 C K Index: 36.00 Risk: > 80 % chance of thunderstorms Sweat Index: 215.80 Risk: None Energy Index: -2.74 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1086.25 J/kg Max Up Vert Vel: 46.61 m/s Conv Inhibition (B-): 40.37 J/kg Cap Strength: 1.92 C Lift Cond Lev (LCL): 881.72 mb = 1168.83 m = 3834.69 ft Lev Free Conv (LFC): 806.72 mb = 1934.80 m = 6347.69 ft Equ Level (EL): 146.72 mb = 14433.14 m = 47352.25 ft B at Equ Level: 1078.20 J/kg Max Parcel Lev (MPL): 76.72 mb = 18128.25 m = 59475.18 ft Wind level data Storm motion: 100 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 ---------------------------------------------------------- 0 997 85 100 2 -2.0 0.3 | 280 4 3.8 -0.6 1 973 305 360 7 -0.0 -7.0 | 324 10 5.8 -8.0 2 940 610 350 2 0.3 -2.0 | 296 7 6.2 -3.0 3 925 750 320 1 0.6 -0.8 | 285 7 6.5 -1.8 4 908 914 300 2 1.7 -1.0 | 285 8 7.5 -2.0 5 850 1489 170 3 -0.5 3.0 | 250 6 5.3 2.0 6 788 2134 135 6 -4.2 4.2 | 206 4 1.6 3.3 7 760 2438 75 7 -6.8 -1.8 | 19 3 -0.9 -2.8 8 707 3048 50 10 -7.7 -6.4 | 14 8 -1.8 -7.4 9 700 3137 45 9 -6.4 -6.4 | 4 7 -0.5 -7.4 10 682 3353 75 11 -10.6 -2.8 | 51 6 -4.8 -3.8 11 657 3658 50 14 -10.7 -9.0 | 26 11 -4.9 -10.0 12 633 3962 75 11 -10.6 -2.8 | 51 6 -4.8 -3.8 13 609 4267 75 13 -12.6 -3.4 | 57 8 -6.7 -4.4 14 587 4572 65 12 -10.9 -5.1 | 40 8 -5.1 -6.1 15 545 5182 75 10 -9.7 -2.6 | 47 5 -3.8 -3.6 16 525 5486 65 10 -9.1 -4.2 | 32 6 -3.2 -5.2 17 500 5880 85 7 -7.0 -0.6 | 36 2 -1.2 -1.6 18 486 6096 70 4 -3.8 -1.4 | 319 3 2.1 -2.4 19 449 6706 105 10 -9.7 2.6 | 113 4 -3.8 1.6 20 416 7315 100 12 -11.8 2.1 | 100 6 -6.0 1.1 21 400 7610 100 14 -13.8 2.4 | 100 8 -8.0 1.4 22 399 7620 80 15 -14.8 -2.6 | 68 10 -9.0 -3.6 23 368 8230 100 13 -12.8 2.3 | 100 7 -7.0 1.3 24 353 8534 130 11 -8.4 7.1 | 157 7 -2.6 6.1 25 339 8839 135 11 -7.8 7.8 | 164 7 -2.0 6.8 26 325 9144 95 10 -10.0 0.9 | 88 4 -4.1 -0.1 27 300 9730 95 11 -11.0 1.0 | 90 5 -5.1 -0.0 28 274 10363 110 12 -11.3 4.1 | 120 6 -5.5 3.1 29 251 10973 75 20 -19.3 -5.2 | 65 15 -13.5 -6.2 30 250 11010 70 19 -17.9 -6.5 | 58 14 -12.0 -7.5 31 229 11582 50 18 -13.8 -11.6 | 32 15 -8.0 -12.6 32 209 12192 55 15 -12.3 -8.6 | 34 12 -6.5 -9.6 33 200 12490 115 6 -5.4 2.5 | 194 2 0.4 1.5 34 190 12802 120 3 -2.6 1.5 | 261 3 3.2 0.5 35 150 14300 210 11 5.5 9.5 | 233 14 11.3 8.5 36 142 14630 205 10 4.2 9.1 | 231 13 10.0 8.1 37 103 16459 355 1 0.1 -1.0 | 289 6 5.9 -2.0 38 100 16650 235 12 9.8 6.9 | 249 17 15.6 5.9 39 98 16764 235 11 9.0 6.3 | 250 16 14.8 5.3 40 96 16876 265 9 9.0 0.8 | 271 15 14.8 -0.2 41 88 17374 245 5 4.5 2.1 | 264 10 10.3 1.1 42 79 17983 295 20 18.1 -8.5 | 292 26 23.9 -9.4 43 75 18288 295 22 19.9 -9.3 | 292 28 25.8 -10.3 44 70 18640 285 35 33.8 -9.1 | 284 41 39.6 -10.1 45 67 18898 285 35 33.8 -9.1 | 284 41 39.6 -10.1 46 61 19507 265 17 16.9 1.5 | 269 23 22.8 0.5 47 58 19812 205 18 7.6 16.3 | 221 20 13.4 15.3 48 55 20117 175 16 -1.4 15.9 | 196 16 4.4 14.9 49 50 20660 240 24 20.8 12.0 | 248 29 26.6 11.0 50 49 20726 235 21 17.2 12.0 | 244 26 23.0 11.1 51 43 21641 235 24 19.7 13.8 | 243 28 25.5 12.8 52 38 22250 255 28 27.0 7.2 | 259 33 32.9 6.3 53 37 22555 245 19 17.2 8.0 | 253 24 23.0 7.0 54 35 22860 265 13 13.0 1.1 | 270 19 18.8 0.1 55 30 23750 290 9 8.5 -3.1 | 286 15 14.3 -4.1 56 30 23774 170 1 -0.2 1.0 | 270 6 5.6 -0.0 57 26 24384 60 11 -9.5 -5.5 | 30 7 -3.7 -6.5 58 24 24689 55 17 -13.9 -9.8 | 37 13 -8.1 -10.7 59 21 25298 95 16 -15.9 1.4 | 92 10 -10.1 0.4 60 20 25603 75 25 -24.1 -6.5 | 68 20 -18.3 -7.5 61 18 25908 100 27 -26.6 4.7 | 100 21 -20.8 3.7 62 15 26822 110 35 -32.9 12.0 | 112 29 -27.1 11.0 Wind Parameters Mean winds (0-6000m): 69.7 at 7.9 knts Storm direction: 99.7 at 5.9 knts Shear (0-3000m) pos: 0.0 neg: 1.5 tot: 1.5 10-3/s Storm rel Dir Shear (0-3000m): 90.4 deg Storm rel helicity (0-3000m) pos: 3.4 neg: -29.5 tot: -26.1 m^2/s^2 ave: -8.7 10^-3 m/s^2 rel: -0.45 Storm rel vorticity (0-3000m) horiz: 6.4 stream: -2.9 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 155.96 Bulk Shear: 6.96 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 5 5 316 8| 0.0 3.7 3.7| 3.3 -9.2 -5.8 -11.6 -0.06| 13.2 -0.8 1000 350 3 303 8| 0.0 2.2 2.2| 3.3 -15.2 -11.9 -11.9 -0.23| 8.6 -2.0 1500 346 3 301 8| 0.0 1.1 1.1| 3.3 -22.1 -18.8 -12.5 -0.35| 7.4 -2.6 2000 112 3 263 3| 0.0 1.1 1.1| 3.3 -25.5 -22.1 -11.1 -0.42| 6.3 -2.6 2500 99 4 282 2| 0.0 1.3 1.3| 3.4 -27.3 -23.9 -9.6 -0.47| 6.9 -3.2 3000 76 5 334 2| 0.0 1.5 1.5| 3.4 -29.5 -26.1 -8.7 -0.45| 6.4 -2.9 4000 68 7 6 4| 0.7 1.1 1.8| 19.2 -36.3 -17.1 -4.3 -0.22| 6.9 -1.5 5000 69 8 20 4| 0.7 1.0 1.7| 21.0 -41.0 -20.0 -4.0 -0.22| 6.1 -1.3 6000 70 8 23 4| 0.6 0.8 1.5| 21.7 -45.0 -23.2 -3.9 -0.25| 5.9 -1.5 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250423.00.gif