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 SBFI... Searching the city database file for: SBFI ... Date:0000Z 18 APR 25 Station: SBFI WMO ident: 83827 Latitude: -25.52 Longitude: -54.58 Elevation: 243.00 ------------------------------------------------------------------------------- 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 101 SFC 985 243 23.0 21.1 89 1.9 21.6 100 1 297.4 300.4 295.4 344.3 16.20 2 979 296 26.6 19.6 65 7.0 21.6 87 3 301.6 304.3 295.6 345.2 14.82 3 925 788 23.4 18.4 74 5.0 19.9 45 10 303.2 305.9 295.8 346.4 14.55 4 867 1350 18.2 17.2 94 1.0 17.5 34 13 303.5 306.1 295.8 346.2 14.39 5 850 1520 17.4 14.8 85 2.6 15.7 40 15 304.4 306.7 294.7 341.8 12.55 6 820 1827 16.0 11.0 72 5.0 12.8 33 12 306.0 307.9 293.4 336.4 10.11 7 721 2907 7.8 5.7 87 2.1 6.6 2 9 308.5 310.0 292.5 332.9 7.99 8 705 3092 6.6 2.2 73 4.4 4.2 0 9 309.2 310.4 291.4 328.8 6.37 9 700 3151 6.6 0.6 65 6.0 3.4 360 9 309.8 310.9 291.0 327.5 5.72 10 679 3401 8.4 -22.6 9 31.0 -2.0 347 11 314.5 314.7 288.0 317.6 0.92 11 663 3598 7.8 -25.2 7 33.0 -2.7 287 17 316.0 316.1 288.3 318.6 0.74 12 658 3660 8.0 -18.0 14 26.0 -1.7 268 19 316.9 317.2 289.3 321.7 1.41 13 654 3710 7.0 -7.0 36 14.0 0.4 266 19 316.3 317.0 291.0 327.5 3.46 14 629 4029 4.4 -5.6 48 10.0 -0.4 268 19 316.9 317.7 291.7 329.8 4.00 15 562 4932 -3.3 -17.3 33 14.0 -8.2 253 8 318.2 318.5 290.0 324.1 1.75 16 526 5454 -4.5 -41.5 4 37.0 -11.8 281 13 322.8 322.9 289.8 323.6 0.19 17 500 5850 -7.9 -44.9 3 37.0 -14.3 280 24 323.4 323.4 289.9 323.9 0.14 18 400 7540 -21.7 -53.7 4 32.0 -24.9 275 38 326.8 326.8 290.9 327.0 0.06 19 396 7614 -22.3 -53.3 4 31.0 -25.4 275 39 326.9 327.0 290.9 327.2 0.07 20 360 8308 -25.5 -58.5 3 33.0 -28.2 265 57 331.7 331.7 292.2 331.9 0.04 21 300 9600 -35.9 -59.9 7 24.0 -37.2 265 76 334.8 334.8 293.0 334.9 0.04 22 251 10813 -45.5 -57.5 25 12.0 -46.0 255 92 338.0 338.0 293.9 338.3 0.06 23 250 10840 -45.9 -58.9 22 13.0 -46.4 255 92 337.8 337.8 293.9 338.1 0.05 24 244 11002 -46.7 -65.7 10 19.0 -47.2 257 94 339.0 339.0 294.1 339.1 0.02 25 233 11307 -48.9 -59.3 29 10.4 -49.2 260 98 340.2 340.2 294.4 340.4 0.06 26 230 11392 -49.5 -57.5 39 8.0 -49.8 260 98 340.5 340.5 294.5 340.8 0.07 27 215 11833 -51.3 -81.3 2 30.0 -51.7 260 93 344.3 344.3 295.4 344.3 0.00 28 200 12300 -54.3 -71.3 11 17.0 -54.6 260 84 346.8 346.8 295.9 346.8 0.01 29 163 13592 -60.3 -80.3 6 20.0 -60.4 262 84 357.6 357.6 298.2 357.6 0.00 30 160 13708 -60.3 -80.3 6 20.0 -60.4 263 85 359.5 359.5 298.6 359.5 0.00 31 153 13987 -60.3 -83.3 3 23.0 -60.5 264 86 364.1 364.1 299.5 364.1 0.00 32 150 14110 -61.1 -83.1 4 22.0 -61.3 265 87 364.8 364.8 299.6 364.8 0.00 33 108 16070 -75.3 -86.3 16 11.0 -75.3 250 78 373.9 373.9 301.2 373.9 0.00 34 102 16403 -71.1 -88.1 6 17.0 -71.2 258 61 388.1 388.2 303.5 388.2 0.00 35 100 16520 -71.1 -88.1 6 17.0 -71.2 260 49 390.4 390.4 303.8 390.4 0.00 36 74 18293 -74.1 -90.1 7 16.0 -74.2 280 31 419.1 419.1 307.6 419.1 0.00 37 70 18620 -71.5 -89.5 5 18.0 -71.6 280 36 431.4 431.4 309.0 431.4 0.00 38 66 18970 -69.5 -89.5 4 20.0 -69.6 277 35 443.1 443.1 310.2 443.1 0.00 39 63 19246 -71.7 -90.7 4 19.0 -71.8 268 33 444.2 444.2 310.3 444.2 0.00 40 58 19737 -70.1 -91.1 3 21.0 -70.2 297 20 458.4 458.4 311.6 458.4 0.00 41 56 19949 -63.3 -90.3 1 27.0 -63.6 292 14 478.5 478.6 313.3 478.6 0.00 42 50 20650 -61.3 -89.3 1 28.0 -61.8 195 9 499.0 499.0 314.9 499.0 0.00 43 30 23850 -56.1 -87.1 1 31.0 -57.5 100 12 591.7 591.7 320.2 591.7 0.01 44 25 25029 -48.7 -83.7 1 35.0 -52.0 68 17 644.6 644.6 322.5 644.7 0.01 45 23 25575 -50.3 -83.3 1 33.0 -53.4 68 13 655.5 655.5 322.9 655.6 0.02 TRP 108 16070 -75.3 -86.3 16 11.0 -75.3 250 78 373.9 373.9 301.2 373.9 0.00 WND 233 11307 -48.9 -59.3 29 10.4 -49.2 260 98 340.2 340.2 294.4 340.4 0.06 Sounding variables and indices 1000-500 mb thick: 5749.00 m Freezing level: 590.71 mb = 4544.57 m = 14909.82 ft Wetbulb zero: 686.83 mb = 3307.17 m = 10850.16 ft Precipitable water: 1.49 inches Sfc-500 mean rel hum: 53.23 % Est. max temperature: 30.73 C = 87.32 F Sfc-Lift cond lev (LCL): 958.34 mb = 480.89 m = 1577.71 ft T: 25.40 C 700-500 lapse rate: 5.37 C/km ThetaE index: 28.73 C Layer 867.0- 663.0 mb Conv cond level (CCL): 842.03 mb = 1600.45 m = 5250.74 ft Mean mixing ratio: 14.65 g/kg Conv temperature: 30.35 C = 86.63 F Cap Strength: 0.95 C Lifted Index: -3.47 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -5.33 C Lifted Index @700 mb: -2.85 C Showalter Index: -1.83 C Risk: Thunderstorms probable Total Totals Index: 48.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.30 C Cross Totals Index: 22.70 C K Index: 34.10 Risk: 60-80 % chance of thunderstorms Sweat Index: 231.60 Risk: None Energy Index: -3.42 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1444.57 J/kg Max Up Vert Vel: 53.75 m/s Conv Inhibition (B-): 25.26 J/kg Cap Strength: 0.85 C Lift Cond Lev (LCL): 869.02 mb = 1329.72 m = 4362.53 ft Lev Free Conv (LFC): 794.02 mb = 2097.15 m = 6880.32 ft Equ Level (EL): 674.02 mb = 3461.99 m = 11358.09 ft B at Equ Level: 89.13 J/kg Max Parcel Lev (MPL): 114.02 mb = 15746.43 m = 51660.88 ft Wind level data Storm motion: 339 at 10 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 ---------------------------------------------------------- 0 985 243 100 1 -1.0 0.2 | 154 10 -4.4 9.1 1 978 305 85 3 -3.0 -0.3 | 144 11 -6.4 8.7 2 944 610 65 10 -9.1 -4.2 | 111 13 -12.4 4.7 3 925 788 45 10 -7.1 -7.1 | 100 11 -10.5 1.9 4 912 914 30 10 -5.0 -8.7 | 92 8 -8.4 0.3 5 880 1219 30 12 -6.0 -10.4 | 81 9 -9.4 -1.4 6 850 1520 40 15 -9.6 -11.5 | 79 13 -13.0 -2.5 7 850 1524 40 14 -9.0 -10.7 | 82 13 -12.4 -1.8 8 790 2134 25 10 -4.2 -9.1 | 89 8 -7.6 -0.1 9 762 2438 5 8 -0.7 -8.0 | 103 4 -4.1 1.0 10 700 3151 360 9 -0.0 -9.0 | 89 3 -3.4 -0.1 11 683 3353 360 10 -0.0 -10.0 | 73 4 -3.4 -1.1 12 657 3658 265 19 18.9 1.7 | 236 19 15.5 10.6 13 633 3962 270 20 20.0 -0.0 | 242 19 16.6 8.9 14 609 4267 260 16 15.8 2.8 | 227 17 12.4 11.7 15 586 4572 250 10 9.4 3.4 | 206 14 6.0 12.4 16 543 5182 255 6 5.8 1.6 | 193 11 2.4 10.5 17 523 5486 285 14 13.5 -3.6 | 242 11 10.1 5.3 18 500 5850 280 24 23.6 -4.2 | 257 21 20.3 4.8 19 484 6096 275 26 25.9 -2.3 | 253 23 22.5 6.7 20 465 6401 275 39 38.9 -3.4 | 261 36 35.5 5.5 21 447 6706 280 36 35.5 -6.3 | 265 32 32.1 2.7 22 400 7540 275 38 37.9 -3.3 | 261 35 34.5 5.6 23 379 7925 275 42 41.8 -3.7 | 262 39 38.5 5.3 24 363 8230 265 56 55.8 4.9 | 255 54 52.4 13.8 25 320 9144 265 71 70.7 6.2 | 257 69 67.3 15.1 26 300 9600 265 76 75.7 6.6 | 258 74 72.3 15.6 27 250 10840 255 92 88.9 23.8 | 249 92 85.5 32.8 28 233 11307 260 98 96.5 17.0 | 254 97 93.1 26.0 29 223 11582 260 98 96.5 17.0 | 254 97 93.1 26.0 30 200 12300 260 84 82.7 14.6 | 253 83 79.3 23.5 31 176 13106 260 82 80.8 14.2 | 253 81 77.4 23.2 32 150 14110 265 87 86.7 7.6 | 259 85 83.3 16.5 33 131 14935 265 91 90.7 7.9 | 259 89 87.3 16.9 34 118 15545 260 75 73.9 13.0 | 253 74 70.5 22.0 35 108 16070 250 78 73.3 26.7 | 243 78 69.9 35.6 36 106 16154 255 86 83.1 22.3 | 249 86 79.7 31.2 37 100 16520 260 49 48.3 8.5 | 249 48 44.9 17.5 38 96 16764 260 49 48.3 8.5 | 249 48 44.9 17.5 39 87 17374 280 57 56.1 -9.9 | 271 53 52.7 -1.0 40 74 18288 280 31 30.5 -5.4 | 263 27 27.1 3.6 41 70 18620 280 36 35.5 -6.3 | 265 32 32.1 2.7 42 67 18898 280 36 35.5 -6.3 | 265 32 32.1 2.7 43 60 19507 260 31 30.5 5.4 | 242 31 27.1 14.3 44 57 19812 305 17 13.9 -9.8 | 274 11 10.5 -0.8 45 55 20117 280 11 10.8 -1.9 | 227 10 7.4 7.0 46 52 20422 285 15 14.5 -3.9 | 245 12 11.1 5.1 47 50 20650 195 9 2.3 8.7 | 177 18 -1.1 17.6 48 49 20726 235 17 13.9 9.8 | 209 21 10.5 18.7 49 47 21031 215 12 6.9 9.8 | 191 19 3.5 18.8 50 45 21336 60 10 -8.7 -5.0 | 108 13 -12.0 3.9 51 41 21946 340 11 3.8 -10.3 | 345 1 0.4 -1.4 52 39 22250 345 15 3.9 -14.5 | 355 6 0.5 -5.5 53 33 23165 75 14 -13.5 -3.6 | 107 18 -16.9 5.3 54 30 23774 75 10 -9.7 -2.6 | 116 15 -13.0 6.4 55 30 23850 100 12 -11.8 2.1 | 126 19 -15.2 11.0 56 28 24079 110 10 -9.4 3.4 | 134 18 -12.8 12.4 57 24 24689 60 18 -15.6 -9.0 | 90 19 -19.0 -0.1 58 23 24994 70 12 -11.3 -4.1 | 108 15 -14.7 4.8 59 21 25298 110 13 -12.2 4.4 | 131 21 -15.6 13.4 60 18 25908 110 16 -15.0 5.5 | 128 23 -18.4 14.4 Wind Parameters Mean winds (0-6000m): 309.3 at 12.8 knts Storm direction: 339.3 at 9.6 knts Shear (0-3000m) pos: 0.2 neg: 1.7 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): -73.0 deg Storm rel helicity (0-3000m) pos: 6.6 neg: -44.1 tot: -37.5 m^2/s^2 ave: -12.5 10^-3 m/s^2 rel: -0.42 Storm rel vorticity (0-3000m) horiz: 5.3 stream: -2.2 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 37.96 Bulk Shear: 38.05 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 66 7 122 11| 0.0 9.7 9.7| 0.0 -32.6 -32.6 -65.3 -0.90| 12.1-10.9 1000 46 9 106 10| 0.0 6.1 6.1| 0.0 -41.8 -41.8 -41.8 -0.82| 8.9 -7.3 1500 42 10 97 10| 0.3 4.1 4.4| 2.4 -42.7 -40.4 -26.9 -0.62| 7.6 -4.7 2000 38 11 94 10| 0.2 2.4 2.6| 5.2 -42.7 -37.6 -18.8 -0.47| 6.9 -3.2 2500 33 10 93 9| 0.2 1.8 2.0| 6.6 -43.1 -36.6 -14.6 -0.40| 6.1 -2.4 3000 28 10 92 8| 0.2 1.7 1.9| 6.6 -44.1 -37.5 -12.5 -0.42| 5.3 -2.2 4000 357 12 46 4| 0.1 2.3 2.4| 13.1 -97.0 -83.9 -21.0 -0.56| 8.3 -4.6 5000 334 11 308 2| 0.2 1.1 1.3| 17.6-129.0-111.5 -22.3 -0.56| 7.9 -4.4 6000 309 13 262 7| 1.1 1.9 3.0| 68.0-134.4 -66.4 -11.1 -0.29| 8.8 -2.6 Wrote GIF file: /home/apache/climate/data/raob//SBFI/skewt/SBFI.skewt.20250418.00.gif