UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042600.upa.cvt Date: 0000Z 26 APR 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 26 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 64 10 3 SFC 998 85 27.0 25.0 89 2.0 25.5 10 3 300.3 304.0 298.7 360.2 20.37 2 945 567 26.0 21.0 74 5.0 22.4 291 2 304.0 307.1 297.5 354.0 16.79 3 925 755 24.6 20.7 79 3.9 21.8 20 5 304.5 307.6 297.6 354.7 16.84 4 850 1492 19.4 16.9 85 2.5 17.7 25 7 306.5 309.2 296.5 349.7 14.40 5 807 1938 16.8 15.3 91 1.5 15.8 56 8 308.3 310.9 296.5 349.7 13.68 6 757 2482 14.2 9.6 74 4.6 11.3 64 6 311.2 313.1 294.7 341.8 9.97 7 713 2986 10.8 10.0 95 0.8 10.3 57 8 312.8 314.9 295.8 346.4 10.89 8 700 3140 10.4 7.3 81 3.1 8.5 55 8 314.0 315.8 295.0 342.6 9.21 9 651 3742 6.4 5.5 94 0.9 5.9 60 7 316.1 317.7 295.1 343.5 8.74 10 615 4210 5.4 1.3 75 4.1 3.1 64 7 320.1 321.4 294.8 342.1 6.86 11 526 5476 -1.7 -3.2 89 1.5 -2.5 54 7 326.2 327.3 295.6 345.2 5.75 12 500 5880 -3.3 -7.4 73 4.1 -5.3 50 7 329.0 329.9 295.2 343.8 4.39 13 488 6072 -4.5 -7.6 79 3.1 -6.0 63 9 329.8 330.7 295.4 344.8 4.43 14 482 6169 -4.7 -13.7 49 9.0 -8.4 63 9 330.8 331.3 294.4 340.3 2.75 15 466 6434 -6.7 -10.8 73 4.1 -8.5 54 11 331.5 332.2 295.2 343.8 3.60 16 417 7293 -12.3 -15.5 77 3.2 -13.5 72 12 335.0 335.6 295.4 344.6 2.75 17 400 7610 -14.1 -19.1 66 5.0 -15.8 75 11 336.7 337.1 295.3 344.2 2.11 18 354 8525 -19.1 -30.1 37 11.0 -21.7 88 17 341.9 342.1 295.6 345.3 0.89 19 327 9108 -23.9 -34.9 36 11.0 -26.0 83 16 343.1 343.3 295.6 345.5 0.60 20 313 9425 -25.7 -43.7 17 18.0 -28.2 79 16 345.0 345.0 295.7 346.0 0.25 21 300 9730 -28.3 -46.3 16 18.0 -30.4 75 15 345.5 345.5 295.8 346.3 0.20 22 250 11010 -38.3 -64.3 5 26.0 -39.5 55 18 349.1 349.1 296.5 349.2 0.03 23 242 11232 -40.1 -67.1 4 27.0 -41.2 51 19 349.7 349.7 296.6 349.8 0.02 24 221 11843 -45.3 -62.3 13 17.0 -45.9 41 14 350.9 350.9 296.8 351.0 0.04 25 208 12244 -48.5 -51.5 71 3.0 -48.7 11 10 352.0 352.0 297.2 352.7 0.16 26 200 12500 -50.5 -54.0 66 3.5 -50.7 315 16 352.8 352.8 297.4 353.3 0.12 27 193 12732 -52.5 -57.5 55 5.0 -52.7 319 16 353.2 353.2 297.4 353.6 0.08 28 180 13179 -56.5 -64.5 36 8.0 -56.6 339 18 353.8 353.8 297.5 354.0 0.04 29 159 13955 -63.9 -67.6 60 3.7 -64.0 298 17 354.1 354.1 297.5 354.2 0.03 30 155 14111 -65.3 -70.3 50 5.0 -65.4 295 17 354.3 354.3 297.5 354.3 0.02 31 152 14230 -65.9 -74.9 27 9.0 -66.0 292 17 355.2 355.2 297.7 355.3 0.01 32 150 14310 -66.7 -74.7 32 8.0 -66.8 290 17 355.2 355.2 297.7 355.2 0.01 33 121 15571 -77.7 -81.7 52 4.0 -77.7 271 12 357.6 357.6 298.2 357.6 0.00 34 100 16640 -84.9 -89.1 47 4.2 -84.9 90 21 363.7 363.7 299.4 363.7 0.00 35 96 16865 -85.7 -90.1 45 4.4 -85.7 80 20 366.4 366.4 299.9 366.4 0.00 36 91 17159 -86.3 -91.0 42 4.7 -86.3 74 24 370.9 370.9 300.7 370.9 0.00 37 87 17406 -84.9 -90.9 33 6.0 -84.9 66 25 378.5 378.5 302.0 378.5 0.00 38 86 17471 -80.5 -87.5 30 7.0 -80.5 61 24 388.6 388.6 303.6 388.6 0.00 39 77 18101 -77.5 -88.5 15 11.0 -77.5 52 6 407.3 407.3 306.2 407.3 0.00 40 73 18406 -78.5 -90.5 12 12.0 -78.6 49 11 411.5 411.5 306.7 411.5 0.00 41 70 18650 -72.1 -90.1 5 18.0 -72.2 255 14 430.1 430.1 308.9 430.1 0.00 42 66 18999 -68.9 -91.9 2 23.0 -69.1 330 14 444.4 444.4 310.3 444.4 0.00 43 60 19565 -71.7 -90.7 4 19.0 -71.8 270 35 450.4 450.4 310.9 450.4 0.00 44 51 20531 -68.7 -90.7 3 22.0 -68.9 269 35 478.9 478.9 313.4 478.9 0.00 45 50 20650 -66.5 -90.5 2 24.0 -66.8 270 31 486.8 486.8 314.0 486.8 0.00 46 47 21027 -62.9 -89.9 1 27.0 -63.3 275 28 504.1 504.1 315.2 504.1 0.00 47 42 21711 -66.7 -90.7 2 24.0 -67.0 244 20 511.2 511.2 315.7 511.2 0.00 48 30 23780 -58.9 -88.9 1 30.0 -59.9 290 15 584.1 584.1 319.9 584.1 0.00 49 27 24443 -56.1 -88.1 1 32.0 -57.6 31 13 609.8 609.8 321.0 609.8 0.01 50 25 24927 -58.9 -88.9 1 30.0 -60.1 39 12 615.3 615.3 321.3 615.4 0.01 51 24 25185 -53.7 -88.7 1 35.0 -55.9 50 21 637.7 637.7 322.2 637.7 0.01 52 20 26350 -55.1 -88.1 1 33.0 -57.3 90 42 667.5 667.5 323.3 667.6 0.01 53 19 26679 -53.9 -87.9 1 34.0 -56.5 88 43 681.1 681.1 323.8 681.2 0.01 54 17 27397 -51.5 -85.5 1 34.0 -54.9 85 39 710.8 710.8 324.8 710.9 0.02 55 16 27790 -52.3 -86.3 1 34.0 -55.6 88 34 720.6 720.6 325.1 720.8 0.01 56 15 28211 -48.5 -85.5 1 37.0 -53.3 101 38 746.7 746.7 325.8 746.8 0.02 57 15 28211 -48.9 -84.9 1 36.0 -53.5 101 38 745.4 745.4 325.8 745.5 0.02 TRP 96 16865 -85.7 -90.1 45 4.4 -85.7 80 20 366.4 366.4 299.9 366.4 0.00 WND Sounding variables and indices 1000-500 mb thick: 5816.00 m Freezing level: 547.31 mb = 5172.97 m = 16971.47 ft Wetbulb zero: 565.97 mb = 4882.96 m = 16020.01 ft Precipitable water: 2.41 inches Sfc-500 mean rel hum: 83.42 % Est. max temperature: 33.23 C = 91.81 F Sfc-Lift cond lev (LCL): 969.93 mb = 336.98 m = 1105.56 ft T: 26.48 C 700-500 lapse rate: 5.00 C/km ThetaE index: 12.92 C Layer 850.0- 713.0 mb Conv cond level (CCL): 862.45 mb = 1365.25 m = 4479.12 ft Mean mixing ratio: 17.61 g/kg Conv temperature: 32.80 C = 91.05 F Cap Strength: 1.79 C Lifted Index: -2.32 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.95 C Lifted Index @700 mb: -1.69 C Showalter Index: -0.27 C Risk: Thunderstorms probable Total Totals Index: 42.90 C Risk: None Vertical Totals Index: 22.70 C Cross Totals Index: 20.20 C K Index: 36.50 Risk: > 80 % chance of thunderstorms Sweat Index: 223.80 Risk: None Energy Index: -1.21 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1071.41 J/kg Max Up Vert Vel: 46.29 m/s Conv Inhibition (B-): 36.13 J/kg Cap Strength: 1.79 C Lift Cond Lev (LCL): 897.79 mb = 1015.23 m = 3330.78 ft Lev Free Conv (LFC): 822.79 mb = 1771.42 m = 5811.67 ft Equ Level (EL): 142.79 mb = 14599.16 m = 47896.93 ft B at Equ Level: 1069.39 J/kg Max Parcel Lev (MPL): 72.79 mb = 18423.10 m = 60442.50 ft Wind level data Storm motion: 81 at 5 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 ---------------------------------------------------------- 0 998 85 10 3 -0.5 -3.0 | 296 5 4.4 -2.2 1 973 305 295 5 4.5 -2.1 | 278 10 9.5 -1.3 2 940 610 290 2 1.9 -0.7 | 269 7 6.8 0.1 3 925 755 20 5 -1.7 -4.7 | 320 5 3.3 -3.9 4 908 914 355 4 0.3 -4.0 | 301 6 5.3 -3.2 5 850 1492 25 7 -3.0 -6.3 | 340 6 2.0 -5.6 6 788 2134 70 9 -8.5 -3.1 | 57 4 -3.5 -2.3 7 760 2438 65 6 -5.4 -2.5 | 15 2 -0.5 -1.8 8 700 3140 55 8 -6.6 -4.6 | 23 4 -1.6 -3.8 9 610 4267 65 7 -6.3 -3.0 | 32 3 -1.4 -2.2 10 500 5880 50 7 -5.4 -4.5 | 6 4 -0.4 -3.7 11 486 6096 65 9 -8.2 -3.8 | 47 4 -3.2 -3.0 12 449 6706 45 12 -8.5 -8.5 | 25 8 -3.5 -7.7 13 432 7010 70 12 -11.3 -4.1 | 62 7 -6.3 -3.3 14 400 7610 75 11 -10.6 -2.8 | 70 6 -5.7 -2.1 15 399 7620 75 12 -11.6 -3.1 | 71 7 -6.6 -2.3 16 383 7925 60 16 -13.9 -8.0 | 51 11 -8.9 -7.2 17 368 8230 65 17 -15.4 -7.2 | 58 12 -10.4 -6.4 18 353 8534 90 17 -17.0 0.0 | 94 12 -12.0 0.8 19 300 9730 75 15 -14.5 -3.9 | 72 10 -9.5 -3.1 20 299 9754 80 15 -14.8 -2.6 | 79 10 -9.8 -1.8 21 286 10058 65 14 -12.7 -5.9 | 56 9 -7.7 -5.1 22 262 10668 70 18 -16.9 -6.2 | 66 13 -11.9 -5.4 23 250 11010 55 18 -14.7 -10.3 | 46 14 -9.8 -9.5 24 240 11278 50 19 -14.6 -12.2 | 40 15 -9.6 -11.4 25 219 11887 40 13 -8.4 -10.0 | 20 10 -3.4 -9.2 26 209 12192 20 10 -3.4 -9.4 | 350 9 1.5 -8.6 27 200 12497 320 10 6.4 -7.7 | 301 13 11.4 -6.9 28 200 12500 315 16 11.3 -11.3 | 303 19 16.3 -10.5 29 191 12802 320 16 10.3 -12.3 | 307 19 15.3 -11.5 30 182 13106 345 18 4.7 -17.4 | 330 19 9.6 -16.6 31 173 13411 310 17 13.0 -10.9 | 299 21 18.0 -10.1 32 150 14310 290 17 16.0 -5.8 | 284 22 20.9 -5.0 33 150 14326 290 21 19.7 -7.2 | 285 26 24.7 -6.4 34 142 14630 305 12 9.8 -6.9 | 292 16 14.8 -6.1 35 115 15850 260 12 11.8 2.1 | 260 17 16.8 2.9 36 109 16154 185 2 0.2 2.0 | 242 6 5.1 2.8 37 103 16459 100 11 -10.8 1.9 | 115 6 -5.9 2.7 38 100 16640 90 21 -21.0 0.0 | 93 16 -16.0 0.8 39 98 16764 90 20 -20.0 0.0 | 93 15 -15.0 0.8 40 96 16865 80 20 -19.7 -3.5 | 80 15 -14.7 -2.7 41 88 17374 70 26 -24.4 -8.9 | 67 21 -19.5 -8.1 42 83 17678 45 20 -14.1 -14.1 | 34 16 -9.2 -13.4 43 79 17983 65 2 -1.8 -0.8 | 271 3 3.2 -0.1 44 75 18288 35 11 -6.3 -9.0 | 9 8 -1.3 -8.2 45 71 18593 70 10 -9.4 -3.4 | 59 5 -4.4 -2.6 46 70 18650 255 14 13.5 3.6 | 257 19 18.5 4.4 47 67 18898 10 11 -1.9 -10.8 | 343 11 3.1 -10.1 48 64 19202 250 20 18.8 6.8 | 252 25 23.8 7.6 49 61 19507 270 33 33.0 -0.0 | 269 38 38.0 0.8 50 55 20117 265 49 48.8 4.3 | 265 54 53.8 5.1 51 50 20650 270 31 31.0 -0.0 | 269 36 36.0 0.8 52 47 21031 275 28 27.9 -2.4 | 273 33 32.9 -1.7 53 39 22250 220 14 9.0 10.7 | 231 18 14.0 11.5 54 37 22555 325 3 1.7 -2.5 | 284 7 6.7 -1.7 55 33 23165 315 28 19.8 -19.8 | 308 31 24.8 -19.0 56 30 23780 290 15 14.1 -5.1 | 283 20 19.1 -4.3 57 29 24079 305 19 15.6 -10.9 | 296 23 20.5 -10.1 58 27 24384 30 13 -6.5 -11.3 | 8 11 -1.5 -10.5 59 25 24994 40 12 -7.7 -9.2 | 18 9 -2.7 -8.4 60 23 25603 70 38 -35.7 -13.0 | 68 33 -30.7 -12.2 61 21 25908 65 38 -34.4 -16.1 | 63 33 -29.5 -15.3 62 20 26213 105 29 -28.0 7.5 | 110 24 -23.0 8.3 63 20 26350 90 42 -42.0 0.0 | 91 37 -37.0 0.8 64 18 26822 85 44 -43.8 -3.8 | 86 39 -38.9 -3.1 65 16 27127 85 33 -32.9 -2.9 | 86 28 -27.9 -2.1 66 14 27737 120 43 -37.2 21.5 | 125 39 -32.3 22.3 67 11 28651 85 47 -46.8 -4.1 | 85 42 -41.9 -3.3 Wind Parameters Mean winds (0-6000m): 51.1 at 6.7 knts Storm direction: 81.1 at 5.0 knts Shear (0-3000m) pos: 1.8 neg: 0.8 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 86.6 deg Storm rel helicity (0-3000m) pos: 22.6 neg: -10.7 tot: 11.9 m^2/s^2 ave: 4.0 10^-3 m/s^2 rel: 0.30 Storm rel vorticity (0-3000m) horiz: 5.1 stream: 1.5 10^-3/s Energy-Hel index: 0.15 Bulk Rich Number: 110.49 Bulk Shear: 9.70 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 ------------------------------------------------------------------------------- 500 305 4 280 8| 0.0 3.5 3.5| 0.0 -7.8 -7.8 -15.5 -0.47| 8.0 -3.8 1000 335 4 293 7| 2.4 1.8 4.2| 10.0 -9.5 0.5 0.5 0.07| 8.1 0.6 1500 358 5 307 6| 2.8 1.2 3.9| 16.0 -9.5 6.5 4.3 0.25| 6.7 1.7 2000 19 6 325 5| 2.7 0.9 3.6| 22.1 -9.5 12.6 6.3 0.40| 6.4 2.6 2500 33 6 337 4| 2.2 1.2 3.4| 22.5 -10.7 11.8 4.7 0.31| 5.8 1.8 3000 40 6 345 4| 1.8 0.8 2.6| 22.6 -10.7 11.9 4.0 0.30| 5.1 1.5 4000 46 6 356 4| 1.3 0.6 1.9| 23.0 -10.7 12.4 3.1 0.30| 4.0 1.2 5000 50 7 1 3| 1.1 0.5 1.6| 23.1 -11.2 11.9 2.4 0.27| 3.3 0.9 6000 51 7 4 3| 1.1 0.4 1.5| 25.8 -11.8 14.0 2.3 0.30| 3.1 0.9 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20250426.00.gif