UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for SBCT... Searching the city database file for: SBCT ... Date:1200Z 17 APR 25 Station: SBCT WMO ident: 83840 Latitude: -25.52 Longitude: -49.17 Elevation: 908.00 ------------------------------------------------------------------------------- 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 142 1 925 822 60 5 SFC 916 908 17.4 16.6 95 0.8 16.9 60 5 297.9 300.3 293.3 335.9 13.08 3 850 1544 14.2 13.5 96 0.7 13.7 30 9 301.0 303.1 293.0 334.9 11.52 4 833 1715 12.8 12.8 100 0.0 12.8 23 9 301.3 303.3 292.9 334.3 11.22 5 722 2910 7.8 3.7 75 4.1 5.5 282 20 308.4 309.7 291.6 329.6 6.93 6 700 3166 6.4 -5.6 42 12.0 0.8 270 20 309.6 310.2 289.0 320.9 3.60 7 670 3524 5.8 -29.2 6 35.0 -4.1 236 16 312.8 312.9 286.9 314.6 0.51 8 630 4023 1.2 -13.8 32 15.0 -4.6 229 14 313.1 313.5 288.7 319.9 2.09 9 596 4466 -1.3 -28.3 11 27.0 -8.5 246 15 315.2 315.3 287.9 317.4 0.62 10 580 4682 -2.7 -18.7 28 16.0 -8.1 249 15 316.0 316.3 289.1 321.1 1.51 11 500 5840 -10.7 -31.7 16 21.0 -15.3 240 17 320.0 320.1 289.3 321.9 0.54 12 463 6428 -13.5 -49.5 3 36.0 -18.4 280 16 323.6 323.6 290.0 324.0 0.09 13 409 7357 -22.1 -50.1 6 28.0 -25.1 284 25 324.2 324.2 290.2 324.6 0.10 14 400 7520 -23.3 -54.3 4 31.0 -26.1 300 29 324.7 324.7 290.3 324.9 0.06 15 357 8342 -29.5 -56.5 6 27.0 -31.4 284 31 327.1 327.1 290.9 327.3 0.05 16 354 8402 -29.1 -60.1 3 31.0 -31.2 283 32 328.4 328.5 291.3 328.6 0.03 17 325 9009 -31.7 -61.7 4 30.0 -33.5 276 48 333.0 333.0 292.6 333.1 0.03 18 300 9570 -36.3 -62.3 5 26.0 -37.5 270 63 334.2 334.2 292.9 334.3 0.03 19 289 9828 -38.1 -63.1 6 25.0 -39.2 270 69 335.2 335.2 293.2 335.3 0.03 20 257 10632 -40.7 -67.7 4 27.0 -41.7 274 80 342.8 342.8 295.0 342.9 0.02 21 250 10820 -42.3 -68.3 4 26.0 -43.2 275 81 343.2 343.2 295.1 343.2 0.02 22 205 12131 -52.3 -71.1 9 18.9 -52.6 275 107 347.5 347.5 296.1 347.6 0.01 23 200 12290 -53.5 -71.5 9 18.0 -53.8 275 105 348.0 348.0 296.2 348.1 0.01 24 173 13210 -60.3 -75.3 12 15.0 -60.4 270 100 351.6 351.6 297.0 351.6 0.01 25 150 14090 -65.1 -80.1 11 15.0 -65.2 265 96 357.9 357.9 298.3 358.0 0.00 26 140 14509 -65.9 -82.9 8 17.0 -66.0 261 94 363.7 363.7 299.4 363.7 0.00 27 111 15895 -72.5 -86.5 10 14.0 -72.5 260 64 376.3 376.3 301.6 376.3 0.00 28 101 16451 -71.7 -87.7 7 16.0 -71.8 260 57 388.1 388.1 303.5 388.1 0.00 29 100 16510 -71.5 -87.5 7 16.0 -71.6 260 56 389.6 389.6 303.8 389.6 0.00 30 91 17066 -70.3 -88.3 5 18.0 -70.4 270 52 402.6 402.6 305.6 402.6 0.00 31 76 18119 -74.9 -88.9 10 14.0 -74.9 275 37 414.3 414.3 307.0 414.3 0.00 32 70 18600 -70.7 -89.7 4 19.0 -70.8 275 29 433.1 433.1 309.1 433.1 0.00 33 66 18953 -67.1 -89.1 3 22.0 -67.3 285 29 448.3 448.3 310.7 448.3 0.00 34 60 19528 -68.9 -89.9 3 21.0 -69.1 313 19 456.7 456.7 311.5 456.7 0.00 35 54 20168 -64.1 -89.1 2 25.0 -64.4 306 11 481.7 481.7 313.6 481.7 0.00 36 50 20640 -64.3 -89.3 2 25.0 -64.6 270 9 492.0 492.0 314.4 492.0 0.00 37 40 22010 -62.7 -87.7 2 25.0 -63.2 352 7 528.4 528.4 316.8 528.4 0.00 38 34 23029 -55.5 -85.5 1 30.0 -56.9 97 11 572.5 572.5 319.3 572.5 0.01 39 30 23830 -53.7 -84.7 1 31.0 -55.5 110 12 598.2 598.2 320.5 598.3 0.01 40 23 25547 -51.7 -82.7 1 31.0 -54.4 85 16 651.4 651.4 322.7 651.5 0.02 41 20 26460 -48.5 -82.5 1 34.0 -52.4 85 25 687.7 687.7 324.0 687.9 0.02 42 16 27937 -45.7 -80.7 1 35.0 -51.3 67 23 742.2 742.2 325.7 742.5 0.04 TRP 76 18119 -74.9 -88.9 10 14.0 -74.9 275 37 414.3 414.3 307.0 414.3 0.00 WND 205 12131 -52.3 -71.1 9 18.9 -52.6 275 107 347.5 347.5 296.1 347.6 0.01 Sounding variables and indices 1000-500 mb thick: 5698.00 m Freezing level: 613.68 mb = 4235.53 m = 13895.93 ft Wetbulb zero: 695.18 mb = 3222.49 m = 10572.35 ft Precipitable water: 0.95 inches Sfc-500 mean rel hum: 50.57 % Est. max temperature: 24.72 C = 76.50 F Sfc-Lift cond lev (LCL): 905.42 mb = 1006.78 m = 3303.04 ft T: 16.90 C 700-500 lapse rate: 6.39 C/km ThetaE index: 21.32 C Layer 850.0- 630.0 mb Conv cond level (CCL): 846.55 mb = 1578.43 m = 5178.52 ft Mean mixing ratio: 11.88 g/kg Conv temperature: 20.46 C = 68.83 F Cap Strength: 1.56 C Lifted Index: -1.81 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.83 C Lifted Index @700 mb: 0.35 C Showalter Index: -1.75 C Risk: Thunderstorms probable Total Totals Index: 49.10 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 24.90 C Cross Totals Index: 24.20 C K Index: 26.40 Risk: 40-60 % chance of thunderstorms Sweat Index: 199.00 Risk: None Energy Index: -2.54 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 316.69 J/kg Max Up Vert Vel: 25.17 m/s Conv Inhibition (B-): 1.84 J/kg Cap Strength: 1.43 C Lift Cond Lev (LCL): 857.55 mb = 1468.76 m = 4818.72 ft Lev Free Conv (LFC): 832.55 mb = 1719.36 m = 5640.89 ft Equ Level (EL): 782.55 mb = 2237.12 m = 7339.53 ft B at Equ Level: 17.84 J/kg Max Parcel Lev (MPL): 672.55 mb = 3492.98 m = 11459.78 ft Wind level data Storm motion: 294 at 11 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 ---------------------------------------------------------- 0 916 908 60 5 -4.3 -2.5 | 97 14 -14.0 1.7 1 850 1544 30 9 -4.5 -7.8 | 76 15 -14.2 -3.6 2 792 2134 5 10 -0.9 -10.0 | 62 12 -10.6 -5.7 3 764 2438 335 9 3.8 -8.2 | 56 7 -5.9 -3.9 4 736 2743 290 13 12.2 -4.4 | 275 3 2.5 -0.2 5 710 3048 275 26 25.9 -2.3 | 263 16 16.2 2.0 6 700 3166 270 20 20.0 -0.0 | 248 11 10.3 4.2 7 684 3353 260 18 17.7 3.1 | 227 11 8.0 7.4 8 658 3658 215 14 8.0 11.5 | 174 16 -1.7 15.7 9 609 4267 240 14 12.1 7.0 | 192 11 2.4 11.2 10 586 4572 250 15 14.1 5.1 | 205 10 4.4 9.4 11 523 5486 235 16 13.1 9.2 | 194 14 3.4 13.4 12 503 5791 250 17 16.0 5.8 | 212 12 6.3 10.0 13 500 5840 240 17 14.7 8.5 | 202 14 5.0 12.7 14 483 6096 240 14 12.1 7.0 | 192 11 2.4 11.2 15 464 6401 280 16 15.8 -2.8 | 257 6 6.1 1.5 16 411 7315 280 24 23.6 -4.2 | 270 14 13.9 0.1 17 400 7520 300 29 25.1 -14.5 | 304 19 15.4 -10.3 18 378 7925 305 29 23.8 -16.6 | 311 19 14.1 -12.4 19 362 8230 285 28 27.0 -7.2 | 280 18 17.3 -3.0 20 300 9570 270 63 63.0 -0.0 | 265 53 53.3 4.2 21 279 10058 270 75 75.0 -0.0 | 266 65 65.3 4.2 22 250 10820 275 81 80.7 -7.1 | 272 71 71.0 -2.8 23 205 12131 275 107 106.6 -9.3 | 273 97 96.9 -5.1 24 203 12192 275 107 106.6 -9.3 | 273 97 96.9 -5.1 25 200 12290 275 105 104.6 -9.2 | 273 95 94.9 -4.9 26 150 14090 265 96 95.6 8.4 | 262 87 85.9 12.6 27 137 14630 260 93 91.6 16.1 | 256 84 81.9 20.4 28 130 14935 260 77 75.8 13.4 | 255 68 66.1 17.6 29 100 16510 260 56 55.1 9.7 | 253 48 45.4 14.0 30 96 16764 260 56 55.1 9.7 | 253 48 45.4 14.0 31 82 17678 290 45 42.3 -15.4 | 289 34 32.6 -11.2 32 78 17983 275 42 41.8 -3.7 | 269 32 32.1 0.6 33 76 18119 275 37 36.9 -3.2 | 268 27 27.2 1.0 34 70 18600 275 29 28.9 -2.5 | 265 19 19.2 1.7 35 67 18898 280 31 30.5 -5.4 | 273 21 20.8 -1.2 36 63 19202 305 19 15.6 -10.9 | 319 9 5.9 -6.7 37 60 19507 315 19 13.4 -13.4 | 338 10 3.7 -9.2 38 57 19812 290 21 19.7 -7.2 | 286 10 10.0 -3.0 39 55 20117 305 12 9.8 -6.9 | 357 3 0.1 -2.7 40 52 20422 310 5 3.8 -3.2 | 100 6 -5.9 1.0 41 50 20640 270 9 9.0 -0.0 | 171 4 -0.7 4.2 42 49 20726 280 17 16.7 -3.0 | 260 7 7.0 1.3 43 47 21031 270 13 13.0 -0.0 | 218 5 3.3 4.2 44 43 21641 300 17 14.7 -8.5 | 310 7 5.0 -4.3 45 39 22250 20 1 -0.3 -0.9 | 108 11 -10.0 3.3 46 37 22555 40 10 -6.4 -7.7 | 78 16 -16.1 -3.4 47 33 23165 110 11 -10.3 3.8 | 112 22 -20.0 8.0 48 30 23774 80 13 -12.8 -2.3 | 95 23 -22.5 2.0 49 30 23830 110 12 -11.3 4.1 | 112 23 -21.0 8.3 50 29 24079 120 12 -10.4 6.0 | 117 23 -20.1 10.2 51 28 24384 120 16 -13.9 8.0 | 117 27 -23.6 12.2 52 26 24689 105 23 -22.2 6.0 | 108 34 -31.9 10.2 53 25 24994 110 19 -17.9 6.5 | 111 30 -27.6 10.7 54 24 25298 85 21 -20.9 -1.8 | 94 31 -30.6 2.4 55 23 25603 85 15 -14.9 -1.3 | 97 25 -24.6 2.9 56 21 26213 80 17 -16.7 -3.0 | 93 26 -26.4 1.3 57 20 26460 85 25 -24.9 -2.2 | 93 35 -34.6 2.1 58 18 26822 90 24 -24.0 0.0 | 97 34 -33.7 4.2 59 16 27127 65 23 -20.8 -9.7 | 80 31 -30.5 -5.5 60 14 27737 80 20 -19.7 -3.5 | 91 29 -29.4 0.8 61 11 28346 60 25 -21.7 -12.5 | 75 32 -31.4 -8.3 Wind Parameters Mean winds (0-6000m): 263.6 at 14.1 knts Storm direction: 293.6 at 10.6 knts Shear (0-3000m) pos: 0.0 neg: 3.2 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 84.0 deg Storm rel helicity (0-3000m) pos: 5.7 neg: -112.6 tot: -106.9 m^2/s^2 ave: -35.6 10^-3 m/s^2 rel: -0.63 Storm rel vorticity (0-3000m) horiz: 10.3 stream: -6.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 6.24 Bulk Shear: 50.76 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 44 7 88 14| 0.0 4.2 4.2| 0.0 -15.7 -15.7 -31.5 -0.98| 4.3 -4.2 1000 32 8 80 14| 0.0 3.6 3.6| 0.0 -28.4 -28.4 -28.4 -0.93| 4.1 -3.8 1500 20 8 74 13| 0.0 3.3 3.3| 0.0 -35.2 -35.2 -23.5 -0.68| 4.9 -3.3 2000 355 10 59 10| 0.0 6.2 6.2| 0.0 -43.3 -43.3 -21.7 -0.59| 8.2 -4.8 2500 319 12 23 5| 0.0 4.6 4.6| 0.0 -79.2 -79.2 -31.7 -0.63| 9.9 -6.2 3000 297 12 319 2| 0.0 3.2 3.2| 5.7-112.6-106.9 -35.6 -0.63| 10.3 -6.5 4000 273 13 223 5| 0.6 2.5 3.2| 21.1-114.7 -93.6 -23.4 -0.50| 8.7 -4.4 5000 262 14 211 7| 0.6 2.1 2.7| 31.2-125.6 -94.4 -18.9 -0.45| 7.8 -3.5 6000 264 14 217 7| 1.4 2.0 3.4| 53.5-129.6 -76.1 -12.7 -0.27| 7.9 -2.2 Wrote GIF file: /home/apache/climate/data/raob//SBCT/skewt/SBCT.skewt.20250417.12.gif