UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101712.upa.cvt Date: 1200Z 17 OCT 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:1200Z 17 OCT 25 Station: FAIR WMO ident: 68263 Latitude: -25.92 Longitude: 28.22 Elevation: 1500.00 ------------------------------------------------------------------------------- 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 134 1 925 812 SFC 852 1500 23.8 12.8 50 11.0 16.4 30 9 310.9 312.9 295.4 344.5 10.97 3 850 1548 21.6 11.6 53 10.0 15.1 340 15 308.8 310.7 294.2 339.6 10.15 4 849 1558 21.2 11.2 53 10.0 14.7 340 15 308.5 310.3 294.0 338.5 9.89 5 817 1889 17.2 10.2 63 7.0 12.7 334 17 307.6 309.4 293.5 336.7 9.61 6 727 2871 8.8 6.5 85 2.3 7.4 306 16 308.9 310.4 292.9 334.5 8.38 7 713 3033 11.0 -3.0 37 14.0 3.9 292 14 313.0 313.8 290.7 326.6 4.30 8 711 3056 11.0 -4.0 35 15.0 3.5 291 14 313.3 314.0 290.6 326.0 4.00 9 700 3186 10.0 -9.0 25 19.0 1.5 280 13 313.6 314.1 289.5 322.5 2.76 10 677 3463 8.2 -22.8 9 31.0 -2.1 264 16 314.6 314.7 288.0 317.6 0.90 11 604 4395 2.8 -14.2 27 17.0 -4.0 235 34 318.8 319.2 290.5 325.8 2.11 12 570 4861 -1.3 -13.3 40 12.0 -6.1 235 38 319.3 319.7 290.9 327.3 2.41 13 524 5524 -7.5 -22.5 29 15.0 -11.9 237 30 319.6 319.8 289.9 323.7 1.20 14 500 5890 -6.9 -42.9 4 36.0 -13.6 240 22 324.6 324.7 290.3 325.3 0.17 15 496 5953 -6.9 -44.9 3 38.0 -13.7 240 22 325.4 325.4 290.5 325.9 0.14 16 492 6016 -6.9 -45.9 3 39.0 -13.7 240 22 326.1 326.2 290.7 326.6 0.13 17 473 6321 -8.5 -42.5 5 34.0 -14.8 240 21 327.8 327.9 291.3 328.6 0.19 18 400 7590 -19.9 -43.9 10 24.0 -23.2 240 20 329.1 329.2 291.7 329.9 0.19 19 303 9572 -37.7 -51.7 22 14.0 -38.6 255 31 331.3 331.3 292.2 331.7 0.11 20 300 9640 -37.9 -51.9 22 14.0 -38.8 255 31 332.0 332.0 292.3 332.4 0.11 21 250 10880 -45.5 -60.5 17 15.0 -46.0 245 47 338.4 338.4 294.0 338.6 0.04 22 243 11068 -46.9 -61.9 16 15.0 -47.4 244 51 339.1 339.1 294.1 339.2 0.04 23 209 12049 -54.3 -61.3 42 7.0 -54.5 237 69 342.4 342.5 295.0 342.6 0.05 24 200 12330 -56.1 -64.1 36 8.0 -56.2 235 75 343.9 343.9 295.3 344.1 0.03 25 198 12394 -56.6 -64.6 36 8.0 -56.7 235 76 344.2 344.2 295.3 344.3 0.03 26 195 12490 -57.3 -65.3 36 8.0 -57.5 237 75 344.5 344.5 295.4 344.6 0.03 27 166 13502 -58.9 -74.9 11 16.0 -59.1 257 61 358.1 358.1 298.3 358.1 0.01 28 165 13540 -58.9 -73.9 13 15.0 -59.1 258 60 358.7 358.7 298.4 358.7 0.01 29 150 14130 -63.5 -77.5 13 14.0 -63.6 270 52 360.7 360.7 298.8 360.7 0.01 30 148 14212 -63.9 -77.9 13 14.0 -64.0 269 52 361.4 361.4 299.0 361.4 0.01 31 140 14553 -64.3 -78.3 13 14.0 -64.4 267 51 366.5 366.5 299.9 366.5 0.01 32 115 15731 -73.5 -83.5 20 10.0 -73.5 260 48 370.6 370.6 300.7 370.6 0.00 33 101 16491 -72.9 -82.9 21 10.0 -72.9 255 26 385.8 385.8 303.2 385.8 0.00 34 100 16550 -72.1 -82.1 21 10.0 -72.2 255 24 388.4 388.4 303.6 388.4 0.00 35 72 18474 -73.5 -83.5 20 10.0 -73.6 209 17 423.7 423.7 308.2 423.7 0.01 36 70 18640 -70.7 -82.7 15 12.0 -70.8 205 16 433.1 433.1 309.1 433.2 0.01 37 50 20670 -63.1 -81.1 7 18.0 -63.5 30 6 494.8 494.8 314.6 494.9 0.01 38 48 20922 -60.5 -80.5 6 20.0 -61.0 32 6 506.8 506.8 315.4 506.9 0.01 39 30 23850 -59.1 -82.1 4 23.0 -60.1 60 12 583.5 583.5 319.8 583.6 0.02 40 29 24062 -59.5 -82.5 4 23.0 -60.5 63 13 588.1 588.1 320.0 588.2 0.02 41 23 25531 -53.7 -80.7 2 27.0 -55.9 83 19 645.5 645.5 322.5 645.7 0.03 42 20 26430 -52.9 -80.9 2 28.0 -55.6 95 23 674.3 674.3 323.6 674.5 0.03 43 17 27481 -51.9 -78.9 3 27.0 -55.2 709.5 709.6 324.7 709.9 0.05 TRP 115 15731 -73.5 -83.5 20 10.0 -73.5 260 48 370.6 370.6 300.7 370.6 0.00 WND 198 12394 -56.6 -64.6 36 8.0 -56.7 235 76 344.2 344.2 295.3 344.3 0.03 Sounding variables and indices 1000-500 mb thick: 5756.00 m Freezing level: 580.78 mb = 4713.35 m = 15463.56 ft Wetbulb zero: 690.71 mb = 3296.63 m = 10815.58 ft Precipitable water: 0.66 inches Sfc-500 mean rel hum: 39.59 % Est. max temperature: 26.32 C = 79.37 F Sfc-Lift cond lev (LCL): 724.61 mb = 2898.12 m = 9508.15 ft T: 9.17 C 700-500 lapse rate: 6.25 C/km ThetaE index: 26.83 C Layer 850.0- 604.0 mb Conv cond level (CCL): 654.04 mb = 3744.68 m = 12285.54 ft Mean mixing ratio: 9.38 g/kg Conv temperature: 28.54 C = 83.38 F Cap Strength: 3.77 C Lifted Index: 1.34 C Risk: Showers probable Lifted Index @300 mb: -1.77 C Lifted Index @700 mb: 3.42 C Showalter Index: 0.05 C Risk: Thunderstorms probable Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 28.50 C Cross Totals Index: 18.50 C K Index: 21.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 191.20 Risk: None Energy Index: -2.69 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 154.87 J/kg Max Up Vert Vel: 17.60 m/s Conv Inhibition (B-): 186.54 J/kg Cap Strength: 3.66 C Lift Cond Lev (LCL): 727.21 mb = 2868.25 m = 9410.14 ft Lev Free Conv (LFC): 552.21 mb = 5110.89 m = 16767.81 ft Equ Level (EL): 502.21 mb = 5855.57 m = 19210.95 ft B at Equ Level: 10.23 J/kg Max Parcel Lev (MPL): 492.21 mb = 6012.16 m = 19724.70 ft Wind level data Storm motion: 280 at 17 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 ---------------------------------------------------------- 0 852 1500 30 9 -4.5 -7.8 | 77 22 -21.4 -5.0 1 850 1548 340 15 5.1 -14.1 | 46 16 -11.7 -11.3 2 793 2134 330 18 9.0 -15.6 | 32 15 -7.9 -12.8 3 765 2438 340 19 6.5 -17.9 | 35 18 -10.4 -15.0 4 700 3186 280 13 12.8 -2.3 | 98 4 -4.1 0.6 5 636 3962 235 23 18.8 13.2 | 187 16 2.0 16.0 6 589 4572 235 39 31.9 22.4 | 211 29 15.1 25.2 7 546 5182 235 37 30.3 21.2 | 209 28 13.4 24.1 8 500 5890 240 22 19.1 11.0 | 189 14 2.2 13.8 9 468 6401 240 21 18.2 10.5 | 186 13 1.3 13.3 10 432 7010 220 17 10.9 13.0 | 159 17 -5.9 15.9 11 400 7590 240 20 17.3 10.0 | 182 13 0.5 12.8 12 366 8230 245 23 20.8 9.7 | 198 13 4.0 12.5 13 336 8839 250 29 27.3 9.9 | 219 16 10.4 12.7 14 300 9640 255 31 29.9 8.0 | 230 17 13.1 10.9 15 250 10880 245 47 42.6 19.9 | 229 34 25.7 22.7 16 200 12330 235 75 61.4 43.0 | 224 64 44.6 45.8 17 198 12394 235 76 62.3 43.6 | 224 65 45.4 46.4 18 150 14130 270 52 52.0 -0.0 | 265 35 35.1 2.8 19 115 15731 260 48 47.3 8.3 | 250 32 30.4 11.2 20 100 16550 255 24 23.2 6.2 | 215 11 6.3 9.0 21 70 18640 205 16 6.8 14.5 | 150 20 -10.1 17.3 22 50 20670 30 6 -3.0 -5.2 | 83 20 -19.9 -2.4 23 30 23850 60 12 -10.4 -6.0 | 83 27 -27.3 -3.2 24 20 26430 95 23 -22.9 2.0 | 97 40 -39.8 4.8 Wind Parameters Mean winds (0-6000m): 249.5 at 22.8 knts Storm direction: 279.5 at 17.1 knts Shear (0-3000m) pos: 0.3 neg: 8.0 tot: 8.2 10-3/s Storm rel Dir Shear (0-3000m): 132.4 deg Storm rel helicity (0-3000m) pos: 60.4 neg: -69.4 tot: -9.0 m^2/s^2 ave: -3.0 10^-3 m/s^2 rel: 0.07 Storm rel vorticity (0-3000m) horiz: 11.5 stream: 0.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.59 Bulk Shear: 97.49 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 ------------------------------------------------------------------------------- 500 337 16 42 16| 0.0 15.1 15.1| 0.0 -60.8 -60.8 -121.6 -0.89| 15.3-13.7 1000 335 17 37 16| 0.8 7.5 8.3| 2.6 -65.6 -63.0 -63.0 -0.70| 10.2 -7.1 1500 330 17 35 15| 0.5 6.2 6.7| 6.4 -68.3 -61.9 -41.3 -0.39| 11.0 -4.3 2000 319 16 33 11| 0.4 6.3 6.7| 15.2 -68.3 -53.1 -26.6 -0.08| 10.8 -0.9 2500 301 17 20 6| 0.3 6.9 7.2| 18.7 -69.4 -50.7 -20.3 -0.04| 11.1 -0.5 3000 280 19 286 2| 0.3 8.0 8.2| 60.4 -69.4 -9.0 -3.0 0.07| 11.5 0.8 4000 259 24 221 10| 1.1 6.0 7.2| 66.1 -89.0 -22.9 -5.7 0.04| 10.0 0.4 5000 254 24 212 11| 1.8 4.7 6.5| 66.1-116.2 -50.2 -10.0 -0.04| 9.1 -0.4 6000 250 23 203 12| 1.4 3.7 5.1| 85.2-139.0 -53.8 -9.0 -0.04| 8.6 -0.4 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251017.12.gif