UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for SBCT... Searching the city database file for: SBCT ... Date:0000Z 18 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 132 1 925 814 SFC 915 908 18.8 17.5 92 1.3 17.9 70 6 299.5 302.0 294.3 340.0 13.88 3 862 1419 15.8 15.6 99 0.2 15.7 58 8 301.5 303.9 294.3 339.9 13.04 4 850 1539 16.4 14.8 90 1.6 15.3 50 6 303.3 305.6 294.4 340.6 12.55 5 849 1549 16.6 14.8 89 1.8 15.4 51 6 303.6 306.0 294.6 341.0 12.57 6 745 2649 9.8 2.8 62 7.0 5.9 21 5 307.8 309.0 290.9 327.1 6.29 7 700 3164 6.4 1.8 72 4.6 3.9 290 14 309.6 310.7 291.4 328.8 6.24 8 683 3365 5.6 1.0 72 4.6 3.1 294 17 310.9 312.0 291.6 329.6 6.03 9 669 3534 7.2 -17.8 15 25.0 -2.0 282 13 314.5 314.8 288.5 319.2 1.41 10 620 4154 3.4 -23.6 12 27.0 -5.2 258 6 317.1 317.2 288.8 320.2 0.92 11 500 5850 -11.1 -34.1 13 23.0 -15.8 240 13 319.5 319.6 289.0 321.0 0.43 12 480 6162 -14.1 -36.1 14 22.0 -18.1 238 14 319.6 319.6 289.0 320.9 0.36 13 440 6820 -16.5 -52.5 3 36.0 -20.7 266 25 324.6 324.6 290.2 324.8 0.07 14 400 7530 -22.1 -53.1 4 31.0 -25.2 275 34 326.3 326.3 290.7 326.5 0.07 15 300 9580 -36.5 -62.5 5 26.0 -37.7 260 81 333.9 333.9 292.8 334.0 0.03 16 268 10353 -42.9 -60.9 12 18.0 -43.6 265 82 335.5 335.6 293.2 335.7 0.04 17 250 10820 -45.7 -65.7 9 20.0 -46.3 265 77 338.1 338.1 293.9 338.2 0.02 18 234 11258 -47.7 -68.7 7 21.0 -48.2 265 75 341.6 341.6 294.7 341.6 0.02 19 200 12280 -52.9 -71.9 8 19.0 -53.2 270 81 349.0 349.0 296.4 349.0 0.01 20 175 13129 -59.3 -75.3 11 16.0 -59.5 270 97 352.0 352.0 297.1 352.1 0.01 21 173 13201 -59.4 -76.0 10 16.5 -59.6 270 98 353.0 353.0 297.3 353.0 0.01 22 157 13807 -60.5 -81.5 5 21.0 -60.7 261 89 361.1 361.1 298.9 361.1 0.00 23 150 14090 -62.3 -82.3 5 20.0 -62.4 255 82 362.8 362.8 299.2 362.8 0.00 24 101 16472 -74.7 -87.7 12 13.0 -74.7 265 54 382.3 382.3 302.6 382.3 0.00 25 100 16530 -74.9 -87.9 12 13.0 -74.9 265 54 383.0 383.0 302.7 383.0 0.00 26 98 16647 -75.5 -88.5 11 13.0 -75.5 265 51 384.1 384.1 302.9 384.1 0.00 27 83 17604 -75.5 -89.5 9 14.0 -75.6 289 54 402.8 402.8 305.6 402.8 0.00 28 76 18118 -71.7 -89.7 5 18.0 -71.8 273 47 421.0 421.0 307.8 421.0 0.00 29 72 18434 -73.7 -89.7 7 16.0 -73.7 263 36 423.3 423.3 308.1 423.3 0.00 30 70 18600 -68.7 -89.7 3 21.0 -68.8 250 30 437.4 437.4 309.6 437.4 0.00 31 69 18687 -68.5 -89.5 3 21.0 -68.7 249 28 439.6 439.6 309.8 439.7 0.00 32 62 19330 -69.5 -90.5 3 21.0 -69.6 286 21 451.1 451.1 311.0 451.1 0.00 33 56 19950 -62.3 -89.3 2 27.0 -62.7 282 19 480.8 480.8 313.5 480.8 0.00 34 53 20290 -64.3 -89.3 2 25.0 -64.6 283 13 483.8 483.8 313.8 483.8 0.00 35 50 20650 -62.1 -89.1 2 27.0 -62.6 215 5 497.1 497.1 314.8 497.2 0.00 36 48 20903 -60.3 -88.3 1 28.0 -60.9 197 9 507.3 507.3 315.5 507.3 0.00 37 40 22043 -59.3 -88.3 1 29.0 -60.1 28 11 536.9 536.9 317.3 537.0 0.00 TRP 98 16647 -75.5 -88.5 11 13.0 -75.5 265 51 384.1 384.1 302.9 384.1 0.00 WND 173 13201 -59.4 -76.0 10 16.5 -59.6 270 98 353.0 353.0 297.3 353.0 0.01 Sounding variables and indices 1000-500 mb thick: 5718.00 m Freezing level: 591.86 mb = 4551.89 m = 14933.85 ft Wetbulb zero: 674.51 mb = 3467.16 m = 11375.06 ft Precipitable water: 0.97 inches Sfc-500 mean rel hum: 45.53 % Est. max temperature: 26.12 C = 79.01 F Sfc-Lift cond lev (LCL): 897.84 mb = 1070.28 m = 3511.39 ft T: 17.85 C 700-500 lapse rate: 6.52 C/km ThetaE index: 13.91 C Layer 745.0- 700.0 mb Conv cond level (CCL): 810.41 mb = 1940.65 m = 6366.89 ft Mean mixing ratio: 12.64 g/kg Conv temperature: 24.33 C = 75.79 F Cap Strength: 1.57 C Lifted Index: -4.09 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -2.07 C Lifted Index @700 mb: -1.12 C Showalter Index: -4.56 C Risk: Severe thunderstorms possible Total Totals Index: 53.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.50 C Cross Totals Index: 25.90 C K Index: 37.70 Risk: > 80 % chance of thunderstorms Sweat Index: 290.60 Risk: None Energy Index: -3.82 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 755.50 J/kg Max Up Vert Vel: 38.87 m/s Conv Inhibition (B-): 28.33 J/kg Cap Strength: 1.57 C Lift Cond Lev (LCL): 846.37 mb = 1575.18 m = 5167.87 ft Lev Free Conv (LFC): 751.37 mb = 2577.40 m = 8455.93 ft Equ Level (EL): 671.37 mb = 3505.45 m = 11500.68 ft B at Equ Level: 42.27 J/kg Max Parcel Lev (MPL): 161.37 mb = 13635.80 m = 44736.34 ft Wind level data Storm motion: 290 at 8 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 ---------------------------------------------------------- 0 915 908 70 6 -5.6 -2.1 | 94 14 -13.6 0.8 1 882 1219 70 12 -11.3 -4.1 | 86 19 -19.3 -1.2 2 850 1539 50 6 -4.6 -3.9 | 86 13 -12.6 -1.0 3 792 2134 115 4 -3.6 1.7 | 112 12 -11.6 4.6 4 763 2438 75 3 -2.9 -0.8 | 101 11 -10.9 2.1 5 710 3048 275 10 10.0 -0.9 | 224 3 2.0 2.0 6 700 3164 290 14 13.2 -4.8 | 290 6 5.2 -1.9 7 684 3353 295 17 15.4 -7.2 | 300 9 7.4 -4.3 8 633 3962 250 3 2.8 1.0 | 127 6 -5.2 3.9 9 610 4267 265 9 9.0 0.8 | 195 4 1.0 3.7 10 587 4572 265 12 12.0 1.0 | 225 6 4.0 3.9 11 544 5182 235 15 12.3 8.6 | 201 12 4.3 11.5 12 523 5486 240 18 15.6 9.0 | 213 14 7.6 11.9 13 504 5791 245 15 13.6 6.3 | 211 11 5.6 9.2 14 500 5850 240 13 11.3 6.5 | 199 10 3.3 9.4 15 484 6096 235 13 10.6 7.5 | 194 11 2.7 10.4 16 446 6706 265 22 21.9 1.9 | 251 15 13.9 4.8 17 412 7315 270 38 38.0 -0.0 | 264 30 30.0 2.9 18 400 7530 275 34 33.9 -3.0 | 270 26 25.9 -0.1 19 363 8230 270 41 41.0 -0.0 | 265 33 33.0 2.9 20 300 9580 260 81 79.8 14.1 | 257 74 71.8 17.0 21 280 10058 265 85 84.7 7.4 | 262 77 76.7 10.3 22 250 10820 265 77 76.7 6.7 | 262 69 68.7 9.6 23 233 11278 265 75 74.7 6.5 | 262 67 66.7 9.4 24 200 12280 270 81 81.0 -0.0 | 268 73 73.0 2.9 25 173 13201 270 98 98.0 -0.0 | 268 90 90.0 2.9 26 167 13411 270 98 98.0 -0.0 | 268 90 90.0 2.9 27 150 14090 255 82 79.2 21.2 | 251 75 71.2 24.1 28 130 14935 255 75 72.4 19.4 | 251 68 64.5 22.3 29 112 15850 270 53 53.0 -0.0 | 266 45 45.0 2.9 30 100 16530 265 54 53.8 4.7 | 261 46 45.8 7.6 31 98 16647 265 51 50.8 4.4 | 260 43 42.8 7.3 32 96 16764 265 54 53.8 4.7 | 261 46 45.8 7.6 33 91 17069 285 42 40.6 -10.9 | 284 34 32.6 -8.0 34 82 17678 290 56 52.6 -19.2 | 290 48 44.6 -16.3 35 78 17983 280 60 59.1 -10.4 | 278 52 51.1 -7.5 36 74 18288 265 32 31.9 2.8 | 257 25 23.9 5.7 37 70 18593 260 40 39.4 6.9 | 253 33 31.4 9.8 38 70 18600 250 30 28.2 10.3 | 237 24 20.2 13.2 39 67 18898 245 23 20.8 9.7 | 226 18 12.9 12.6 40 63 19202 295 16 14.5 -6.8 | 301 8 6.5 -3.9 41 60 19507 275 27 26.9 -2.4 | 268 19 18.9 0.5 42 57 19812 270 22 22.0 -0.0 | 258 14 14.0 2.9 43 55 20117 295 16 14.5 -6.8 | 301 8 6.5 -3.9 44 52 20422 275 11 11.0 -1.0 | 237 4 3.0 1.9 45 50 20650 215 5 2.9 4.1 | 144 9 -5.1 7.0 46 49 20726 215 10 5.7 8.2 | 169 11 -2.2 11.1 47 43 21336 115 3 -2.7 1.3 | 111 11 -10.7 4.2 48 40 21641 30 11 -5.5 -9.5 | 64 15 -13.5 -6.6 49 38 21946 15 11 -2.8 -10.6 | 54 13 -10.8 -7.7 50 35 22250 15 9 -2.3 -8.7 | 61 12 -10.3 -5.8 Wind Parameters Mean winds (0-6000m): 260.0 at 11.3 knts Storm direction: 290.0 at 8.5 knts Shear (0-3000m) pos: 0.9 neg: 1.3 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): 42.7 deg Storm rel helicity (0-3000m) pos: 25.0 neg: -55.0 tot: -29.9 m^2/s^2 ave: -10.0 10^-3 m/s^2 rel: -0.37 Storm rel vorticity (0-3000m) horiz: 10.5 stream: -3.9 10^-3/s Energy-Hel index: 0.10 Bulk Rich Number: 13.36 Bulk Shear: 56.55 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 68 9 88 17| 0.0 2.9 2.9| 0.0 -11.9 -11.9 -23.8 -0.28| 10.0 -2.8 1000 67 8 90 15| 2.6 1.5 4.1| 14.9 -11.9 3.0 3.0 0.10| 8.2 0.8 1500 72 6 94 14| 1.7 1.0 2.8| 20.8 -17.8 3.1 2.0 0.07| 6.9 0.5 2000 62 6 90 13| 1.3 3.2 4.5| 20.8 -40.4 -19.6 -9.8 -0.25| 8.6 -2.2 2500 15 8 66 11| 1.0 4.0 5.1| 25.0 -42.6 -17.6 -7.0 -0.23| 9.9 -2.3 3000 332 8 45 6| 0.9 1.3 2.1| 25.0 -55.0 -29.9 -10.0 -0.37| 10.5 -3.9 4000 291 8 54 0| 1.2 1.3 2.5| 33.4 -58.7 -25.3 -6.3 -0.23| 9.5 -2.2 5000 264 10 204 4| 0.6 1.4 2.0| 42.2 -71.1 -28.8 -5.8 -0.22| 8.9 -2.0 6000 260 11 213 6| 1.8 1.2 3.0| 89.9 -72.3 17.6 2.9 -0.06| 9.0 -0.5 Wrote GIF file: /home/apache/climate/data/raob//SBCT/skewt/SBCT.skewt.20250418.00.gif