UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101923.upa.cvt Date: 2300Z 19 OCT 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:2300Z 19 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 192 1 925 844 SFC 853 1500 12.6 12.6 100 0.0 12.6 120 10 299.0 301.0 291.9 330.6 10.81 3 850 1552 20.4 11.4 56 9.0 14.6 0 0 307.5 309.4 293.8 337.8 10.01 4 700 3164 7.6 2.7 71 4.9 4.9 230 15 310.9 312.2 292.1 331.5 6.65 5 500 5840 -10.9 -14.8 73 3.9 -12.3 245 48 319.7 320.2 291.1 327.8 2.43 6 400 7520 -21.5 -34.5 30 13.0 -23.8 265 48 327.0 327.1 291.4 328.9 0.51 7 314 9262 -34.1 -46.3 28 12.2 -35.2 260 77 332.9 332.9 292.7 333.7 0.19 8 300 9580 -36.5 -48.5 28 12.0 -37.4 270 75 333.9 334.0 292.9 334.5 0.16 9 250 10820 -46.5 -58.5 24 12.0 -46.9 255 67 336.9 336.9 293.6 337.2 0.06 10 200 12270 -55.7 -67.7 21 12.0 -55.9 275 63 344.6 344.6 295.4 344.7 0.02 11 150 14070 -63.7 -75.7 18 12.0 -63.8 255 67 360.3 360.3 298.8 360.4 0.01 12 100 16520 -68.3 -83.3 10 15.0 -68.4 270 16 395.8 395.8 304.6 395.8 0.00 13 72 18483 -72.9 -85.9 12 13.0 -73.0 335 14 425.0 425.0 308.3 425.0 0.00 14 70 18650 -69.9 -83.9 11 14.0 -70.0 300 16 434.8 434.8 309.3 434.9 0.00 15 66 19002 -67.7 -83.7 8 16.0 -67.8 269 15 447.0 447.0 310.6 447.0 0.01 16 55 20104 -66.3 -84.3 6 18.0 -66.5 175 10 474.1 474.1 313.0 474.2 0.01 17 53 20331 -62.1 -83.1 4 21.0 -62.5 155 9 488.9 488.9 314.1 489.0 0.01 18 50 20690 -63.5 -84.5 4 21.0 -63.8 125 8 493.8 493.8 314.5 493.9 0.01 19 44 21478 -62.1 -86.1 3 24.0 -62.6 515.7 515.7 316.0 515.7 0.01 TRP 72 18483 -72.9 -85.9 12 13.0 -73.0 335 14 425.0 425.0 308.3 425.0 0.00 WND 314 9262 -34.1 -46.3 28 12.2 -35.2 260 77 332.9 332.9 292.7 333.7 0.19 Sounding variables and indices 1000-500 mb thick: 5648.00 m Freezing level: 617.84 mb = 4263.33 m = 13987.13 ft Wetbulb zero: 643.36 mb = 3835.06 m = 12582.07 ft Precipitable water: 0.94 inches Sfc-500 mean rel hum: 69.00 % Est. max temperature: 23.86 C = 74.96 F Sfc-Lift cond lev (LCL): 853.00 mb = 1500.00 m = 4921.20 ft T: 12.60 C 700-500 lapse rate: 6.91 C/km ThetaE index: 9.99 C Layer 700.0- 400.0 mb Conv cond level (CCL): 687.60 mb = 3306.17 m = 10846.89 ft Mean mixing ratio: 8.95 g/kg Conv temperature: 24.41 C = 75.93 F Cap Strength: 1.89 C Lifted Index: -2.31 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 0.22 C Lifted Index @700 mb: 1.31 C Showalter Index: -3.19 C Risk: Severe thunderstorms possible Total Totals Index: 53.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 31.30 C Cross Totals Index: 22.30 C K Index: 37.80 Risk: > 80 % chance of thunderstorms Sweat Index: 276.80 Risk: None Energy Index: -2.06 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 285.27 J/kg Max Up Vert Vel: 23.89 m/s Conv Inhibition (B-): 52.57 J/kg Cap Strength: 1.89 C Lift Cond Lev (LCL): 716.17 mb = 2974.43 m = 9758.52 ft Lev Free Conv (LFC): 631.17 mb = 3987.23 m = 13081.30 ft Equ Level (EL): 301.17 mb = 9552.93 m = 31341.26 ft B at Equ Level: 283.73 J/kg Max Parcel Lev (MPL): 201.17 mb = 12232.21 m = 40131.42 ft Wind level data Storm motion: 284 at 26 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 ---------------------------------------------------------- 0 853 1500 120 10 -8.7 5.0 | 109 35 -33.6 11.4 1 850 1552 0 0 -0.0 -0.0 | 104 26 -24.9 6.4 2 792 2134 90 20 -20.0 0.0 | 98 45 -44.9 6.4 3 764 2438 85 19 -18.9 -1.7 | 96 44 -43.9 4.7 4 700 3164 230 15 11.5 9.6 | 140 21 -13.4 16.0 5 633 3962 260 29 28.6 5.0 | 198 12 3.6 11.4 6 586 4572 270 39 39.0 -0.0 | 246 15 14.1 6.4 7 543 5182 260 38 37.4 6.6 | 224 18 12.5 13.0 8 500 5840 245 48 43.5 20.3 | 215 33 18.6 26.7 9 464 6401 255 55 53.1 14.2 | 234 35 28.2 20.6 10 428 7010 255 55 53.1 14.2 | 234 35 28.2 20.6 11 400 7520 265 48 47.8 4.2 | 245 25 22.9 10.6 12 362 8230 275 53 52.8 -4.6 | 266 28 27.9 1.8 13 333 8839 265 62 61.8 5.4 | 252 39 36.8 11.8 14 314 9262 260 77 75.8 13.4 | 249 55 50.9 19.8 15 300 9580 270 75 75.0 -0.0 | 263 50 50.1 6.4 16 250 10820 255 67 64.7 17.3 | 239 46 39.8 23.7 17 200 12270 275 63 62.8 -5.5 | 269 38 37.8 0.9 18 150 14070 255 67 64.7 17.3 | 239 46 39.8 23.7 19 100 16520 270 16 16.0 -0.0 | 126 11 -8.9 6.4 20 72 18483 335 14 5.9 -12.7 | 72 20 -19.0 -6.3 21 70 18650 300 16 13.9 -8.0 | 82 11 -11.1 -1.6 22 50 20690 125 8 -6.6 4.6 | 109 33 -31.5 11.0 Wind Parameters Mean winds (0-6000m): 254.4 at 34.3 knts Storm direction: 284.4 at 25.7 knts Shear (0-3000m) pos: 9.0 neg: 2.0 tot: 11.1 10-3/s Storm rel Dir Shear (0-3000m): 132.1 deg Storm rel helicity (0-3000m) pos: 484.0 neg: -86.1 tot: 398.0 m^2/s^2 ave: 132.7 10^-3 m/s^2 rel: 0.47 Storm rel vorticity (0-3000m) horiz: 18.4 stream: 8.7 10^-3/s Energy-Hel index: 0.74 Bulk Rich Number: 1.23 Bulk Shear: 231.56 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 71 8 97 32| 0.0 12.3 12.3| 15.7 -74.4 -58.7 -117.5 -0.30| 28.4 -8.6 1000 89 13 99 39| 4.5 6.1 10.7|112.9 -86.1 26.8 26.8 -0.02| 20.7 -0.4 1500 103 15 104 40| 9.6 4.1 13.7|372.0 -86.1 285.9 190.6 0.34| 24.1 8.1 2000 122 15 111 41| 9.3 3.1 12.4|413.6 -86.1 327.5 163.8 0.36| 22.1 8.1 2500 200 17 140 30| 9.2 2.5 11.7|453.0 -86.1 366.9 146.8 0.43| 20.1 8.6 3000 243 20 156 17| 9.0 2.0 11.1|484.0 -86.1 398.0 132.7 0.47| 18.4 8.7 4000 256 25 177 13| 6.8 0.4 7.2|487.8-121.1 366.7 91.7 0.36| 15.7 5.7 5000 253 30 195 16| 6.1 0.8 6.9|583.6-137.6 446.0 89.2 0.38| 14.5 5.4 6000 254 34 207 18| 4.7 0.7 5.4|629.5-137.6 491.9 82.0 0.39| 13.0 5.0 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251019.23.gif