UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120423.upa.cvt Date: 2300Z 4 DEC 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:2300Z 4 DEC 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 185 1 925 843 SFC 853 1500 15.2 13.4 89 1.8 14.0 30 7 301.8 303.9 293.2 335.4 11.40 3 850 1557 15.0 11.8 81 3.2 13.0 20 8 301.9 303.7 292.3 332.3 10.28 4 735 2780 10.2 4.2 66 6.0 6.8 32 7 309.4 310.8 292.0 331.1 7.05 5 702 3161 7.6 3.5 75 4.1 5.3 115 7 310.6 312.0 292.3 332.4 7.03 6 700 3185 7.4 2.9 73 4.5 4.9 120 7 310.7 312.0 292.2 331.6 6.75 7 673 3508 6.2 -4.8 45 11.0 0.9 132 7 312.9 313.6 290.4 325.5 3.98 8 630 4045 1.8 -4.2 64 6.0 -1.1 150 8 313.8 314.6 291.1 327.9 4.45 9 612 4279 1.6 -10.4 40 12.0 -3.5 150 8 316.2 316.7 290.4 325.4 2.83 10 609 4319 2.0 -19.0 19 21.0 -5.3 150 9 317.1 317.3 289.3 321.8 1.40 11 594 4520 2.2 -27.8 9 30.0 -6.5 150 9 319.6 319.7 289.3 321.9 0.65 12 583 4671 0.8 -31.2 7 32.0 -7.7 146 9 319.7 319.8 289.2 321.4 0.48 13 522 5552 -4.1 -32.1 9 28.0 -11.1 138 9 324.0 324.1 290.5 325.8 0.50 14 500 5890 -6.7 -24.7 22 18.0 -11.9 155 7 324.9 325.1 291.3 328.5 1.03 15 497 5937 -7.1 -24.1 24 17.0 -12.1 162 7 324.9 325.2 291.4 328.8 1.10 16 446 6766 -13.5 -48.5 3 35.0 -18.5 247 5 327.1 327.1 291.0 327.5 0.11 17 419 7235 -17.7 -40.7 12 23.0 -21.4 240 4 327.6 327.7 291.3 328.6 0.26 18 413 7343 -18.7 -29.7 37 11.0 -21.1 232 5 327.7 327.8 291.9 330.5 0.79 19 409 7415 -18.3 -52.3 3 34.0 -22.2 227 5 329.1 329.1 291.5 329.4 0.07 20 400 7580 -19.3 -52.3 4 33.0 -23.1 215 5 329.9 329.9 291.7 330.2 0.08 21 369 8176 -24.1 -47.1 10 23.0 -26.8 202 12 331.2 331.3 292.2 331.8 0.15 22 340 8768 -29.7 -44.7 22 15.0 -31.3 209 19 331.4 331.5 292.3 332.3 0.21 23 323 9132 -32.9 -37.2 65 4.3 -33.4 212 22 331.9 332.0 292.7 333.7 0.48 24 318 9242 -33.9 -44.9 32 11.0 -34.9 212 22 332.0 332.1 292.5 332.9 0.22 25 311 9398 -34.5 -37.5 74 3.0 -34.9 213 23 333.3 333.4 293.1 335.1 0.49 26 300 9650 -35.9 -45.9 35 10.0 -36.8 215 25 334.8 334.8 293.2 335.6 0.21 27 295 9767 -36.9 -53.9 16 17.0 -37.9 214 26 335.0 335.0 293.2 335.3 0.08 28 293 9814 -37.3 -54.3 15 17.0 -38.4 214 26 335.1 335.1 293.2 335.4 0.08 29 250 10890 -45.9 -60.9 17 15.0 -46.4 205 36 337.8 337.8 293.8 338.0 0.04 30 232 11381 -49.9 -62.9 20 13.0 -50.3 218 43 339.0 339.1 294.1 339.2 0.03 31 215 11871 -54.1 -58.1 61 4.0 -54.2 232 51 340.0 340.0 294.4 340.3 0.07 32 204 12205 -56.3 -60.1 62 3.8 -56.4 241 56 341.7 341.7 294.8 341.9 0.06 33 200 12330 -57.3 -61.3 60 4.0 -57.4 245 58 342.0 342.0 294.8 342.2 0.05 34 180 12988 -63.1 -67.4 56 4.3 -63.1 245 64 343.0 343.0 295.1 343.1 0.02 35 171 13305 -62.4 -69.1 40 6.7 -62.4 245 67 349.3 349.3 296.5 349.4 0.02 36 170 13341 -62.3 -69.3 39 7.0 -62.4 245 66 350.0 350.0 296.7 350.1 0.02 37 150 14110 -64.9 -75.9 21 11.0 -65.0 235 39 358.3 358.3 298.4 358.3 0.01 38 140 14530 -65.9 -77.9 17 12.0 -66.0 241 40 363.7 363.7 299.4 363.7 0.01 39 137 14662 -66.1 -78.1 17 12.0 -66.2 243 41 365.6 365.6 299.8 365.6 0.01 40 126 15165 -69.9 -79.9 22 10.0 -69.9 250 43 367.6 367.6 300.1 367.6 0.01 41 112 15861 -72.7 -80.7 29 8.0 -72.8 260 45 374.9 374.9 301.4 374.9 0.01 42 103 16356 -71.1 -82.1 18 11.0 -71.2 230 34 387.1 387.1 303.3 387.1 0.00 43 100 16530 -72.3 -83.3 18 11.0 -72.3 220 30 388.0 388.0 303.5 388.1 0.00 44 84 17553 -73.5 -84.5 17 11.0 -73.6 186 22 405.4 405.4 305.9 405.5 0.00 45 77 18067 -69.9 -83.9 11 14.0 -70.0 169 18 423.1 423.2 308.1 423.2 0.00 46 70 18630 -73.1 -86.1 12 13.0 -73.2 150 14 428.0 428.0 308.6 428.0 0.00 47 67 18889 -69.5 -84.5 10 15.0 -69.6 441.2 441.2 310.0 441.2 0.00 48 60 19544 -71.7 -86.7 9 15.0 -71.8 450.4 450.4 310.9 450.4 0.00 49 53 20284 -66.9 -85.9 5 19.0 -67.1 477.8 477.8 313.2 477.8 0.00 TRP 112 15861 -72.7 -80.7 29 8.0 -72.8 260 45 374.9 374.9 301.4 374.9 0.01 WND 171 13305 -62.4 -69.1 40 6.7 -62.4 245 67 349.3 349.3 296.5 349.4 0.02 Sounding variables and indices 1000-500 mb thick: 5705.00 m Freezing level: 573.04 mb = 4814.89 m = 15796.69 ft Wetbulb zero: 653.60 mb = 3746.22 m = 12290.61 ft Precipitable water: 0.72 inches Sfc-500 mean rel hum: 45.23 % Est. max temperature: 23.65 C = 74.57 F Sfc-Lift cond lev (LCL): 830.44 mb = 1752.86 m = 5750.78 ft T: 14.23 C 700-500 lapse rate: 5.21 C/km ThetaE index: 6.87 C Layer 700.0- 630.0 mb Conv cond level (CCL): 678.27 mb = 3444.14 m = 11299.53 ft Mean mixing ratio: 8.96 g/kg Conv temperature: 25.38 C = 77.68 F Cap Strength: 4.41 C Lifted Index: 3.65 C Risk: None Lifted Index @300 mb: 3.22 C Lifted Index @700 mb: 2.46 C Showalter Index: 3.48 C Risk: None Total Totals Index: 40.20 C Risk: None Vertical Totals Index: 21.70 C Cross Totals Index: 18.50 C K Index: 29.00 Risk: 40-60 % chance of thunderstorms Sweat Index: 164.60 Risk: None Energy Index: -0.65 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.76 J/kg Max Up Vert Vel: 3.39 m/s Conv Inhibition (B-): 10049.42 J/kg Cap Strength: 4.34 C Lift Cond Lev (LCL): 752.58 mb = 2581.24 m = 8468.54 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 170 at 6 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 30 7 -3.5 -6.1 | 12 12 -2.5 -12.0 1 850 1557 20 8 -2.7 -7.5 | 7 14 -1.7 -13.5 2 794 2134 360 14 -0.0 -14.0 | 357 20 1.0 -19.9 3 765 2438 320 7 4.5 -5.4 | 334 13 5.5 -11.3 4 700 3185 120 7 -6.1 3.5 | 64 6 -5.1 -2.4 5 635 3962 150 8 -4.0 6.9 | 108 3 -3.0 1.0 6 589 4572 150 9 -4.5 7.8 | 118 4 -3.5 1.9 7 546 5182 120 12 -10.4 6.0 | 90 9 -9.4 0.1 8 500 5890 155 7 -3.0 6.3 | 102 2 -2.0 0.4 9 467 6401 235 7 5.7 4.0 | 286 7 6.7 -1.9 10 431 7010 255 4 3.9 1.0 | 315 7 4.9 -4.9 11 400 7580 215 5 2.9 4.1 | 295 4 3.9 -1.8 12 365 8230 200 13 4.4 12.2 | 221 8 5.4 6.3 13 336 8839 210 20 10.0 17.3 | 224 16 11.0 11.4 14 300 9650 215 25 14.3 20.5 | 227 21 15.3 14.5 15 250 10890 205 36 15.2 32.6 | 211 31 16.2 26.7 16 200 12330 245 58 52.6 24.5 | 251 57 53.6 18.6 17 171 13305 245 67 60.7 28.3 | 250 66 61.7 22.4 18 150 14110 235 39 31.9 22.4 | 243 37 32.9 16.4 19 112 15861 260 45 44.3 7.8 | 268 45 45.3 1.9 20 100 16530 220 30 19.3 23.0 | 230 26 20.3 17.0 21 70 18630 150 14 -7.0 12.1 | 136 9 -6.0 6.2 Wind Parameters Mean winds (0-6000m): 140.5 at 8.0 knts Storm direction: 170.5 at 6.0 knts Shear (0-3000m) pos: 2.6 neg: 1.1 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 105.2 deg Storm rel helicity (0-3000m) pos: 52.7 neg: -45.7 tot: 7.0 m^2/s^2 ave: 2.3 10^-3 m/s^2 rel: 0.24 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 1.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.16 Bulk Shear: 35.70 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 11 10 4 16| 0.0 7.2 7.2| 0.0 -12.5 -12.5 -24.9 -0.44| 7.2 -3.2 1000 360 10 356 16| 0.0 3.4 3.4| 4.2 -45.7 -41.6 -41.6 -0.49| 9.7 -4.7 1500 4 9 359 15| 3.9 2.3 6.1| 42.3 -45.7 -3.4 -2.3 0.09| 10.9 1.0 2000 17 9 6 14| 3.6 1.7 5.4| 50.2 -45.7 4.5 2.2 0.19| 9.8 1.9 2500 42 9 21 13| 3.1 1.4 4.5| 52.2 -45.7 6.5 2.6 0.23| 8.4 1.9 3000 76 9 43 11| 2.6 1.1 3.7| 52.7 -45.7 7.0 2.3 0.24| 7.1 1.7 4000 110 9 69 8| 1.8 0.3 2.1| 55.2 -51.0 4.2 1.0 0.16| 6.6 1.1 5000 125 9 81 6| 1.2 0.2 1.4| 61.6 -51.0 10.6 2.1 0.24| 6.8 1.7 6000 140 8 94 4| 0.8 0.2 1.0| 66.9 -53.6 13.3 2.2 0.24| 6.1 1.5 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251204.23.gif