UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101312.upa.cvt Date: 1200Z 13 OCT 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:1200Z 13 OCT 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 1003 85 24.0 21.0 83 3.0 21.9 320 3 296.9 299.8 294.9 342.6 15.80 1 1000 106 23.8 20.8 83 3.0 21.7 300 6 297.0 299.8 294.8 342.2 15.65 2 978 301 23.0 19.2 79 3.8 20.4 315 12 298.0 300.7 294.3 340.0 14.46 3 959 473 25.4 16.4 57 9.0 19.3 337 11 302.1 304.4 294.0 338.5 12.32 4 925 791 23.8 15.8 61 8.0 18.4 25 12 303.6 305.9 294.4 340.2 12.29 5 899 1040 22.4 13.4 57 9.0 16.5 23 12 304.7 306.7 293.6 337.0 10.81 6 879 1235 20.4 17.3 82 3.1 18.2 20 13 304.6 307.2 296.0 347.2 14.28 7 850 1525 18.8 15.1 79 3.7 16.3 15 13 305.8 308.2 295.3 344.2 12.80 8 700 3165 8.2 5.6 84 2.6 6.6 360 3 311.6 313.1 293.5 336.8 8.18 9 698 3189 8.0 5.5 84 2.5 6.5 2 3 311.6 313.1 293.5 336.8 8.14 10 662 3624 5.2 4.1 93 1.1 4.5 41 5 313.2 314.7 293.7 337.4 7.78 11 606 4343 1.2 1.2 100 0.0 1.2 101 8 316.6 317.9 293.9 338.5 6.91 12 500 5870 -7.1 -7.6 96 0.5 -7.3 110 6 324.4 325.2 294.0 338.7 4.32 13 435 6943 -13.5 -13.8 98 0.3 -13.6 151 5 329.4 330.1 294.3 339.8 3.03 14 432 6996 -12.7 -15.6 79 2.9 -13.7 152 5 331.1 331.6 294.4 340.2 2.63 15 400 7580 -15.9 -19.1 76 3.2 -17.0 160 2 334.3 334.8 294.7 341.8 2.11 16 364 8286 -20.1 -26.1 59 6.0 -21.7 205 4 337.9 338.1 294.9 342.4 1.25 17 362 8326 -20.5 -24.9 68 4.4 -21.7 205 4 337.9 338.1 295.0 343.0 1.40 18 304 9596 -29.9 -33.4 71 3.5 -30.5 205 6 341.9 342.1 295.4 344.8 0.75 19 300 9690 -30.7 -34.1 72 3.4 -31.3 205 6 342.1 342.3 295.5 344.8 0.71 20 250 10950 -41.3 -44.9 68 3.6 -41.6 275 10 344.7 344.7 295.7 345.8 0.28 21 200 12430 -54.3 -57.8 65 3.5 -54.4 210 5 346.8 346.8 296.0 347.1 0.08 22 197 12526 -55.1 -58.5 66 3.4 -55.2 203 5 347.0 347.0 296.0 347.3 0.07 23 186 12888 -58.5 -62.7 58 4.2 -58.6 176 6 347.3 347.3 296.1 347.4 0.04 24 150 14200 -69.3 -75.3 41 6.0 -69.4 75 10 350.7 350.7 296.8 350.8 0.01 25 136 14778 -73.1 -80.1 34 7.0 -73.1 66 13 354.0 354.0 297.5 354.0 0.00 26 123 15361 -76.7 -82.7 38 6.0 -76.7 95 12 357.7 357.7 298.2 357.7 0.00 27 102 16445 -73.7 -84.7 17 11.0 -73.7 232 11 383.2 383.2 302.8 383.2 0.00 28 100 16560 -74.5 -85.5 17 11.0 -74.5 270 19 383.8 383.8 302.9 383.8 0.00 29 83 17633 -79.1 -87.1 26 8.0 -79.1 246 31 395.4 395.4 304.6 395.4 0.00 30 81 17772 -79.3 -87.3 26 8.0 -79.3 243 32 397.8 397.8 304.9 397.8 0.00 31 74 18295 -72.3 -87.3 9 15.0 -72.4 265 39 422.9 422.9 308.0 422.9 0.00 32 70 18620 -74.5 -87.5 12 13.0 -74.6 260 32 425.0 425.0 308.3 425.0 0.00 33 56 19943 -67.5 -89.5 3 22.0 -67.7 177 16 469.0 469.0 312.5 469.0 0.00 34 50 20620 -71.3 -90.3 4 19.0 -71.4 70 19 475.5 475.5 313.1 475.5 0.00 35 49 20739 -71.5 -90.5 4 19.0 -71.6 65 19 477.8 477.8 313.2 477.8 0.00 36 47 20988 -67.7 -90.7 2 23.0 -67.9 65 24 492.6 492.6 314.4 492.6 0.00 37 43 21521 -69.1 -91.1 3 22.0 -69.3 95 29 501.8 501.8 315.1 501.9 0.00 38 40 21959 -64.1 -90.1 2 26.0 -64.6 97 41 524.9 524.9 316.6 524.9 0.00 39 32 23340 -59.5 -88.5 1 29.0 -60.4 82 50 571.8 571.8 319.2 571.8 0.00 TRP 123 15361 -76.7 -82.7 38 6.0 -76.7 95 12 357.7 357.7 298.2 357.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5764.00 m Freezing level: 590.67 mb = 4563.59 m = 14972.23 ft Wetbulb zero: 591.18 mb = 4539.40 m = 14892.88 ft Precipitable water: 2.12 inches Sfc-500 mean rel hum: 85.58 % Est. max temperature: 32.82 C = 91.08 F Sfc-Lift cond lev (LCL): 960.33 mb = 461.21 m = 1513.14 ft T: 25.23 C 700-500 lapse rate: 5.66 C/km ThetaE index: 10.40 C Layer 850.0- 662.0 mb Conv cond level (CCL): 779.10 mb = 2260.67 m = 7416.82 ft Mean mixing ratio: 13.04 g/kg Conv temperature: 35.56 C = 96.01 F Cap Strength: 3.83 C Lifted Index: -0.21 C Risk: Thunderstorms probable Lifted Index @300 mb: 3.56 C Lifted Index @700 mb: 0.62 C Showalter Index: -2.02 C Risk: Severe thunderstorms possible Total Totals Index: 48.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.90 C Cross Totals Index: 22.20 C K Index: 38.40 Risk: > 80 % chance of thunderstorms Sweat Index: 213.20 Risk: None Energy Index: -1.17 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 69.16 J/kg Max Up Vert Vel: 11.76 m/s Conv Inhibition (B-): 215.79 J/kg Cap Strength: 3.83 C Lift Cond Lev (LCL): 861.80 mb = 1405.96 m = 4612.69 ft Lev Free Conv (LFC): 666.80 mb = 3564.94 m = 11695.84 ft Equ Level (EL): 446.80 mb = 6736.87 m = 22102.33 ft B at Equ Level: 68.89 J/kg Max Parcel Lev (MPL): 386.80 mb = 7830.95 m = 25691.77 ft Wind level data Storm motion: 78 at 7 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 1003 85 320 3 1.9 -2.3 | 276 9 8.5 -0.9 1 1000 106 300 6 5.2 -3.0 | 278 12 11.8 -1.6 2 978 305 315 12 8.5 -8.5 | 295 17 15.1 -7.1 3 944 610 355 11 1.0 -11.0 | 322 12 7.6 -9.5 4 925 791 25 12 -5.1 -10.9 | 351 10 1.5 -9.5 5 912 914 25 12 -5.1 -10.9 | 351 10 1.5 -9.5 6 850 1525 15 13 -3.4 -12.6 | 344 12 3.2 -11.1 7 820 1829 10 16 -2.8 -15.8 | 345 15 3.8 -14.3 8 791 2134 20 13 -4.4 -12.2 | 349 11 2.1 -10.8 9 763 2438 40 8 -5.1 -6.1 | 343 5 1.4 -4.7 10 700 3165 360 3 -0.0 -3.0 | 284 7 6.6 -1.6 11 610 4267 100 8 -7.9 1.4 | 155 3 -1.3 2.8 12 524 5486 125 10 -8.2 5.7 | 167 7 -1.6 7.1 13 500 5870 110 6 -5.6 2.1 | 195 4 1.0 3.5 14 485 6096 140 9 -5.8 6.9 | 186 8 0.8 8.3 15 400 7580 160 2 -0.7 1.9 | 241 7 5.9 3.3 16 382 7925 75 1 -1.0 -0.3 | 258 6 5.6 1.2 17 366 8230 205 4 1.7 3.6 | 239 10 8.3 5.0 18 300 9690 205 6 2.5 5.4 | 233 11 9.1 6.8 19 260 10668 275 10 10.0 -0.9 | 268 17 16.6 0.5 20 250 10950 275 10 10.0 -0.9 | 268 17 16.6 0.5 21 217 11887 255 10 9.7 2.6 | 256 17 16.3 4.0 22 200 12430 210 5 2.5 4.3 | 238 11 9.1 5.7 23 150 14200 75 10 -9.7 -2.6 | 69 3 -3.1 -1.2 24 147 14326 75 10 -9.7 -2.6 | 69 3 -3.1 -1.2 25 139 14630 55 12 -9.8 -6.9 | 31 6 -3.2 -5.5 26 126 15240 100 16 -15.8 2.8 | 115 10 -9.2 4.2 27 123 15361 95 12 -12.0 1.0 | 115 6 -5.4 2.5 28 119 15545 95 12 -12.0 1.0 | 115 6 -5.4 2.5 29 113 15850 125 5 -4.1 2.9 | 210 5 2.5 4.3 30 102 16459 235 11 9.0 6.3 | 244 17 15.6 7.7 31 100 16560 270 19 19.0 -0.0 | 267 26 25.6 1.4 32 97 16764 280 18 17.7 -3.1 | 274 24 24.3 -1.7 33 92 17069 255 27 26.1 7.0 | 256 34 32.7 8.4 34 78 17983 240 34 29.4 17.0 | 243 40 36.0 18.4 35 74 18288 265 39 38.9 3.4 | 264 46 45.4 4.8 36 70 18620 260 32 31.5 5.6 | 260 39 38.1 7.0 37 67 18898 255 35 33.8 9.1 | 255 42 40.4 10.5 38 60 19507 285 29 28.0 -7.5 | 280 35 34.6 -6.1 39 57 19812 230 16 12.3 10.3 | 238 22 18.8 11.7 40 54 20117 110 17 -16.0 5.8 | 128 12 -9.4 7.2 41 52 20422 105 24 -23.2 6.2 | 115 18 -16.6 7.6 42 50 20620 70 19 -17.9 -6.5 | 66 12 -11.3 -5.1 43 49 20726 65 19 -17.2 -8.0 | 58 13 -10.6 -6.6 44 46 21031 65 27 -24.5 -11.4 | 61 20 -17.9 -10.0 45 43 21336 95 29 -28.9 2.5 | 100 23 -22.3 3.9 46 40 21641 100 40 -39.4 6.9 | 104 34 -32.8 8.4 47 38 21946 75 47 -45.4 -12.2 | 75 40 -38.8 -10.8 48 29 23165 85 52 -51.8 -4.5 | 86 45 -45.2 -3.1 49 24 24079 95 49 -48.8 4.3 | 98 43 -42.2 5.7 Wind Parameters Mean winds (0-6000m): 47.9 at 9.0 knts Storm direction: 77.9 at 6.7 knts Shear (0-3000m) pos: 1.2 neg: 0.8 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): 12.7 deg Storm rel helicity (0-3000m) pos: 61.2 neg: -13.1 tot: 48.1 m^2/s^2 ave: 16.0 10^-3 m/s^2 rel: 0.24 Storm rel vorticity (0-3000m) horiz: 7.5 stream: 1.8 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 3.17 Bulk Shear: 21.84 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 ------------------------------------------------------------------------------- 500 324 10 298 14| 8.9 0.0 8.9| 39.7 0.0 39.7 79.4 0.65| 17.0 11.0 1000 354 11 321 12| 5.8 0.0 5.8| 57.1 -0.9 56.2 56.2 0.68| 12.3 8.4 1500 3 12 330 12| 3.8 0.8 4.6| 57.1 -3.4 53.7 35.8 0.59| 9.0 5.3 2000 7 12 335 12| 3.0 0.6 3.5| 60.4 -3.4 57.0 28.5 0.53| 8.1 4.2 2500 10 12 337 11| 1.5 0.5 1.9| 61.2 -6.6 54.6 21.9 0.37| 8.1 3.0 3000 12 11 334 10| 1.2 0.8 2.1| 61.2 -13.1 48.1 16.0 0.24| 7.5 1.8 4000 17 9 333 8| 1.8 0.6 2.4| 65.0 -14.0 51.1 12.8 0.28| 6.8 1.9 5000 32 9 345 6| 1.7 0.5 2.2| 66.0 -14.0 52.1 10.4 0.28| 6.0 1.6 6000 48 9 1 5| 1.3 0.4 1.7| 69.9 -14.8 55.1 9.2 0.26| 5.9 1.5 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251013.12.gif