UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121112.upa.cvt Date: 1200Z 11 DEC 25 Searching for SBVT... Searching the city database file for: SBVT ... Date:1200Z 11 DEC 25 Station: SBVT WMO ident: 83649 Latitude: -20.26 Longitude: -40.29 Elevation: 4.00 ------------------------------------------------------------------------------- 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 1007 4 27.0 22.8 78 4.2 23.9 20 18 299.6 302.8 296.8 351.0 17.61 1 1000 62 26.2 22.1 78 4.1 23.2 20 18 299.4 302.4 296.4 348.9 16.98 2 987 178 25.2 21.9 82 3.3 22.8 1 17 299.5 302.6 296.4 349.2 17.00 3 977 267 26.0 20.0 70 6.0 21.8 346 15 301.1 303.9 295.7 345.9 15.23 4 925 749 23.8 19.0 75 4.8 20.4 300 26 303.6 306.4 296.3 348.6 15.12 5 850 1486 21.0 15.0 69 6.0 16.9 290 42 308.1 310.5 295.9 346.6 12.72 6 808 1924 18.4 12.4 68 6.0 14.4 288 32 309.9 312.0 295.3 344.3 11.27 7 797 2041 19.2 11.2 60 8.0 14.0 289 29 312.0 314.0 295.4 344.4 10.54 8 730 2792 14.6 3.6 48 11.0 8.2 303 17 314.9 316.2 293.4 336.2 6.80 9 700 3146 11.8 2.8 54 9.0 6.6 290 10 315.6 316.8 293.5 336.7 6.70 10 618 4174 3.4 -0.5 76 3.9 1.3 315 15 317.4 318.5 293.4 336.4 5.98 11 598 4440 2.4 -0.1 84 2.5 1.0 318 17 319.2 320.4 294.2 339.6 6.37 12 590 4549 2.0 -1.7 76 3.7 0.0 319 17 320.0 321.1 293.9 338.4 5.73 13 546 5172 -0.7 -23.7 16 23.0 -8.0 263 16 323.9 324.1 291.0 327.6 1.03 14 500 5870 -5.7 -18.7 35 13.0 -10.2 285 21 326.1 326.4 292.3 332.1 1.75 15 498 5901 -5.7 -15.7 45 10.0 -9.5 286 21 326.5 326.9 292.9 334.2 2.26 16 490 6028 -5.9 -19.9 32 14.0 -10.6 288 20 327.7 328.1 292.6 333.4 1.61 17 486 6093 -5.5 -27.5 16 22.0 -11.7 290 20 329.0 329.2 292.3 332.0 0.82 18 482 6157 -5.7 -22.7 25 17.0 -11.2 290 20 329.5 329.8 292.8 334.1 1.28 19 401 7571 -16.1 -51.1 3 35.0 -20.7 260 29 333.8 333.8 292.9 334.2 0.09 20 400 7590 -16.3 -51.3 3 35.0 -20.9 260 29 333.8 333.8 292.8 334.1 0.08 21 314 9358 -29.5 -49.5 13 20.0 -31.4 253 30 339.3 339.4 294.3 339.9 0.13 22 300 9680 -32.5 -47.5 21 15.0 -33.9 250 31 339.6 339.6 294.4 340.3 0.17 23 250 10940 -43.9 -55.9 25 12.0 -44.5 270 30 340.8 340.8 294.6 341.1 0.08 24 234 11380 -47.9 -56.9 35 9.0 -48.3 277 28 341.2 341.3 294.7 341.6 0.07 25 222 11726 -49.5 -63.5 18 14.0 -49.9 281 29 344.0 344.0 295.3 344.1 0.03 26 200 12400 -55.3 -65.3 28 10.0 -55.5 285 39 345.2 345.2 295.6 345.3 0.03 27 182 12993 -60.3 -64.8 55 4.5 -60.4 289 39 346.5 346.5 295.9 346.6 0.03 28 181 13027 -60.7 -65.2 55 4.5 -60.8 290 39 346.4 346.4 295.8 346.5 0.03 29 170 13414 -62.9 -70.9 33 8.0 -63.0 293 40 349.0 349.0 296.4 349.1 0.02 30 150 14170 -70.1 -75.1 48 5.0 -70.1 290 40 349.3 349.3 296.5 349.4 0.01 31 116 15651 -81.9 -86.2 48 4.3 -81.9 255 43 354.1 354.1 297.5 354.1 0.00 32 105 16223 -71.5 -84.5 13 13.0 -71.6 251 35 384.2 384.2 302.9 384.2 0.00 33 101 16452 -72.7 -86.7 10 14.0 -72.8 255 17 386.2 386.2 303.2 386.2 0.00 34 100 16510 -72.9 -86.9 10 14.0 -72.9 310 8 386.9 386.9 303.3 386.9 0.00 35 89 17186 -76.3 -88.3 13 12.0 -76.3 336 12 393.2 393.2 304.3 393.2 0.00 36 75 18178 -73.1 -88.1 8 15.0 -73.2 252 8 419.6 419.6 307.7 419.6 0.00 37 70 18580 -74.3 -89.3 8 15.0 -74.3 185 4 425.4 425.4 308.3 425.4 0.00 38 67 18836 -74.5 -89.5 8 15.0 -74.6 67 2 430.4 430.4 308.9 430.4 0.00 39 60 19486 -70.3 -89.3 5 19.0 -70.4 113 11 453.5 453.5 311.2 453.6 0.00 40 54 20111 -71.7 -90.7 4 19.0 -71.8 105 18 464.2 464.2 312.1 464.2 0.00 41 50 20570 -68.5 -90.5 3 22.0 -68.7 85 17 482.1 482.1 313.6 482.1 0.00 42 41 21776 -61.9 -90.9 1 29.0 -62.4 80 16 526.7 526.7 316.7 526.7 0.00 43 37 22408 -63.7 -90.7 1 27.0 -64.2 95 18 537.7 537.7 317.4 537.8 0.00 44 30 23710 -57.9 -88.9 1 31.0 -59.0 80 28 586.8 586.8 320.0 586.8 0.00 45 27 24376 -56.9 -87.9 1 31.0 -58.3 78 27 607.6 607.6 320.9 607.6 0.01 46 25 24862 -58.1 -89.1 1 31.0 -59.5 88 22 617.6 617.6 321.4 617.7 0.01 TRP 116 15651 -81.9 -86.2 48 4.3 -81.9 255 43 354.1 354.1 297.5 354.1 0.00 WND Sounding variables and indices 1000-500 mb thick: 5808.00 m Freezing level: 557.41 mb = 5010.84 m = 16439.57 ft Wetbulb zero: 589.89 mb = 4550.70 m = 14929.95 ft Precipitable water: 1.88 inches Sfc-500 mean rel hum: 58.70 % Est. max temperature: 35.17 C = 95.31 F Sfc-Lift cond lev (LCL): 947.64 mb = 536.06 m = 1758.72 ft T: 24.77 C 700-500 lapse rate: 6.42 C/km ThetaE index: 8.17 C Layer 730.0- 700.0 mb Conv cond level (CCL): 752.77 mb = 2529.48 m = 8298.72 ft Mean mixing ratio: 15.57 g/kg Conv temperature: 41.32 C = 106.37 F Cap Strength: 4.30 C Lifted Index: -2.03 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.99 C Lifted Index @700 mb: 1.76 C Showalter Index: -1.50 C Risk: Thunderstorms probable Total Totals Index: 47.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.70 C Cross Totals Index: 20.70 C K Index: 32.70 Risk: 60-80 % chance of thunderstorms Sweat Index: 285.00 Risk: None Energy Index: -2.76 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 781.54 J/kg Max Up Vert Vel: 39.54 m/s Conv Inhibition (B-): 285.63 J/kg Cap Strength: 4.17 C Lift Cond Lev (LCL): 889.77 mb = 1087.48 m = 3567.79 ft Lev Free Conv (LFC): 654.77 mb = 3696.94 m = 12128.92 ft Equ Level (EL): 174.77 mb = 13243.65 m = 43449.76 ft B at Equ Level: 780.36 J/kg Max Parcel Lev (MPL): 104.77 mb = 16236.40 m = 53268.39 ft Wind level data Storm motion: 325 at 15 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 1007 4 20 18 -6.2 -16.9 | 73 15 -14.7 -4.4 1 1000 62 20 18 -6.2 -16.9 | 73 15 -14.7 -4.4 2 973 305 340 15 5.1 -14.1 | 65 4 -3.4 -1.6 3 940 610 305 23 18.8 -13.2 | 274 10 10.3 -0.7 4 925 749 300 26 22.5 -13.0 | 272 14 13.9 -0.5 5 908 914 295 29 26.3 -12.3 | 269 18 17.7 0.2 6 850 1486 290 42 39.5 -14.4 | 274 31 30.9 -1.9 7 846 1524 285 42 40.6 -10.9 | 267 32 32.0 1.6 8 788 2134 290 26 24.4 -8.9 | 257 16 15.9 3.6 9 760 2438 300 21 18.2 -10.5 | 258 10 9.6 2.0 10 734 2743 305 18 14.7 -10.3 | 251 7 6.2 2.1 11 700 3146 290 10 9.4 -3.4 | 185 9 0.8 9.0 12 682 3353 305 7 5.7 -4.0 | 161 9 -2.8 8.5 13 633 3962 315 13 9.2 -9.2 | 191 3 0.6 3.3 14 609 4267 315 16 11.3 -11.3 | 247 3 2.7 1.2 15 587 4572 320 17 10.9 -13.0 | 283 2 2.4 -0.6 16 565 4877 265 16 15.9 1.4 | 208 16 7.4 13.9 17 524 5486 260 16 15.8 2.8 | 205 17 7.2 15.2 18 500 5870 285 21 20.3 -5.4 | 239 14 11.7 7.0 19 486 6096 290 20 18.8 -6.8 | 241 12 10.2 5.6 20 449 6706 295 20 18.1 -8.5 | 247 10 9.6 4.0 21 415 7315 265 30 29.9 2.6 | 235 26 21.3 15.1 22 400 7590 260 29 28.6 5.0 | 229 27 20.0 17.5 23 382 7925 260 25 24.6 4.3 | 224 23 16.0 16.8 24 366 8230 265 27 26.9 2.4 | 231 24 18.3 14.8 25 300 9680 250 31 29.1 10.6 | 222 31 20.6 23.1 26 297 9754 250 31 29.1 10.6 | 222 31 20.6 23.1 27 250 10940 270 30 30.0 -0.0 | 240 25 21.4 12.5 28 227 11582 280 27 26.6 -4.7 | 247 20 18.0 7.8 29 200 12400 285 39 37.7 -10.1 | 265 29 29.1 2.4 30 161 13716 295 40 36.3 -16.9 | 279 28 27.7 -4.4 31 150 14170 290 40 37.6 -13.7 | 272 29 29.0 -1.2 32 118 15545 265 49 48.8 4.3 | 247 44 40.2 16.7 33 116 15651 255 43 41.5 11.1 | 234 41 33.0 23.6 34 106 16154 250 41 38.5 14.0 | 229 40 30.0 26.5 35 101 16459 255 16 15.5 4.1 | 202 18 6.9 16.6 36 100 16510 310 8 6.1 -5.1 | 162 8 -2.4 7.3 37 96 16764 310 8 6.1 -5.1 | 162 8 -2.4 7.3 38 91 17069 355 10 0.9 -10.0 | 108 8 -7.7 2.5 39 86 17374 305 14 11.5 -8.0 | 213 5 2.9 4.4 40 78 17983 285 10 9.7 -2.6 | 186 10 1.1 9.9 41 70 18580 185 4 0.3 4.0 | 153 18 -8.2 16.5 42 66 18898 40 1 -0.6 -0.8 | 142 15 -9.2 11.7 43 60 19507 115 11 -10.0 4.6 | 133 25 -18.5 17.1 44 57 19812 85 13 -13.0 -1.1 | 118 24 -21.5 11.3 45 54 20117 105 18 -17.4 4.7 | 123 31 -26.0 17.1 46 51 20422 60 14 -12.1 -7.0 | 105 21 -20.7 5.5 47 50 20570 85 17 -16.9 -1.5 | 113 28 -25.5 11.0 48 49 20726 100 16 -15.8 2.8 | 122 29 -24.3 15.2 49 46 21031 70 16 -15.0 -5.5 | 107 25 -23.6 7.0 50 42 21641 60 14 -12.1 -7.0 | 105 21 -20.7 5.5 51 40 21946 100 18 -17.7 3.1 | 121 31 -26.3 15.6 52 38 22250 85 17 -16.9 -1.5 | 113 28 -25.5 11.0 53 34 22860 120 22 -19.1 11.0 | 130 36 -27.6 23.5 54 33 23165 115 31 -28.1 13.1 | 125 45 -36.7 25.6 55 30 23710 80 28 -27.6 -4.9 | 102 37 -36.1 7.6 56 30 23774 80 15 -14.8 -2.6 | 113 25 -23.3 9.9 57 28 24079 75 30 -29.0 -7.8 | 97 38 -37.6 4.7 58 26 24384 85 19 -18.9 -1.7 | 111 30 -27.5 10.8 59 24 24689 95 28 -27.9 2.4 | 112 39 -36.5 14.9 60 22 24994 70 29 -27.3 -9.9 | 94 36 -35.8 2.6 61 18 25908 100 28 -27.6 4.9 | 116 40 -36.1 17.3 62 17 26213 70 35 -32.9 -12.0 | 91 41 -41.5 0.5 63 16 26518 60 27 -23.4 -13.5 | 88 32 -32.0 -1.0 Wind Parameters Mean winds (0-6000m): 295.5 at 20.2 knts Storm direction: 325.5 at 15.1 knts Shear (0-3000m) pos: 3.9 neg: 7.1 tot: 11.0 10-3/s Storm rel Dir Shear (0-3000m): 130.1 deg Storm rel helicity (0-3000m) pos: 9.3 neg: -81.9 tot: -72.6 m^2/s^2 ave: -24.2 10^-3 m/s^2 rel: -0.32 Storm rel vorticity (0-3000m) horiz: 13.8 stream: -4.5 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 19.81 Bulk Shear: 39.44 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 ------------------------------------------------------------------------------- 500 350 17 52 7| 0.0 20.6 20.6| 0.1 -12.0 -11.9 -23.8 -0.47| 21.9-10.4 1000 318 21 302 7| 0.0 17.9 17.9| 2.1 -21.9 -19.8 -19.8 -0.38| 18.6 -7.0 1500 305 27 282 14| 0.0 15.9 15.9| 8.7 -34.3 -25.6 -17.1 -0.29| 16.6 -4.9 2000 299 29 275 17| 3.2 11.9 15.2| 8.7 -64.4 -55.7 -27.9 -0.30| 15.9 -4.7 2500 298 28 272 16| 4.7 9.5 14.2| 9.3 -69.8 -60.5 -24.2 -0.27| 14.9 -4.0 3000 298 26 270 15| 3.9 7.1 11.0| 9.3 -81.9 -72.6 -24.2 -0.32| 13.8 -4.5 4000 299 22 261 11| 3.2 5.3 8.5| 13.5 -95.2 -81.7 -20.4 -0.31| 12.0 -3.7 5000 300 21 257 10| 2.4 5.2 7.7| 16.3-114.6 -98.3 -19.7 -0.30| 11.6 -3.5 6000 295 20 249 10| 2.1 4.4 6.5| 52.6-116.8 -64.2 -10.7 -0.20| 10.7 -2.2 Wrote GIF file: /home/apache/climate/data/raob//SBVT/skewt/SBVT.skewt.20251211.12.gif