UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120800.upa.cvt Date: 0000Z 8 DEC 25 Searching for FAIR... Searching the city database file for: FAIR ... Date:0000Z 8 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 178 1 925 835 SFC 852 1500 14.8 13.7 93 1.1 14.1 20 7 301.4 303.6 293.3 335.8 11.64 3 850 1548 14.2 11.9 86 2.3 12.7 10 10 301.0 302.9 292.1 331.5 10.35 4 816 1891 11.6 11.1 97 0.5 11.3 302 7 301.8 303.7 292.3 332.0 10.23 5 807 1985 16.8 5.8 48 11.0 10.3 284 6 308.3 309.6 291.8 330.3 7.18 6 795 2113 17.4 3.4 39 14.0 9.4 259 5 310.3 311.4 291.5 329.3 6.15 7 789 2177 17.0 3.0 39 14.0 9.0 256 6 310.5 311.6 291.5 329.2 6.03 8 700 3185 9.6 -1.4 46 11.0 3.8 180 10 313.1 314.1 291.3 328.7 4.93 9 677 3461 7.4 0.4 61 7.0 3.6 175 12 313.7 314.8 292.3 332.0 5.83 10 642 3895 5.2 -11.8 28 17.0 -1.9 167 16 316.0 316.4 289.9 323.9 2.41 11 583 4673 -0.7 -30.7 8 30.0 -8.5 178 19 317.9 318.0 288.6 319.7 0.51 12 564 4937 -2.7 -29.7 10 27.0 -9.7 189 19 318.6 318.7 288.9 320.6 0.58 13 553 5092 -3.9 -14.9 42 11.0 -8.0 196 19 319.0 319.4 290.6 326.2 2.17 14 530 5426 -6.1 -20.1 32 14.0 -10.6 212 22 320.2 320.5 290.3 325.2 1.46 15 524 5515 -6.3 -22.3 27 16.0 -11.2 216 23 321.0 321.3 290.3 325.2 1.22 16 500 5880 -8.5 -14.5 62 6.0 -10.8 235 27 322.7 323.2 292.0 331.0 2.49 17 492 6005 -9.3 -12.9 75 3.6 -10.7 235 27 323.2 323.8 292.5 332.8 2.88 18 439 6880 -13.7 -17.5 73 3.8 -15.0 250 25 328.3 328.8 293.3 335.9 2.20 19 400 7580 -19.1 -20.4 89 1.3 -19.5 260 24 330.2 330.5 293.5 336.8 1.89 20 351 8540 -26.1 -26.1 100 0.0 -26.1 270 27 333.3 333.6 293.8 338.0 1.30 21 350 8561 -26.1 -29.4 74 3.3 -26.8 270 27 333.6 333.8 293.6 337.1 0.96 22 319 9226 -30.9 -33.0 82 2.1 -31.3 270 42 335.9 336.0 294.0 338.7 0.74 23 306 9521 -32.9 -40.9 45 8.0 -33.8 270 50 337.1 337.2 293.9 338.5 0.35 24 300 9660 -33.9 -37.8 68 3.9 -34.4 270 54 337.6 337.7 294.2 339.5 0.49 25 299 9683 -33.9 -37.7 68 3.8 -34.4 270 54 337.9 338.0 294.3 339.8 0.50 26 292 9849 -34.9 -52.9 14 18.0 -36.2 271 55 338.8 338.8 294.1 339.2 0.10 27 291 9873 -35.3 -54.3 13 19.0 -36.6 271 56 338.6 338.6 294.0 338.9 0.08 28 260 10646 -42.3 -54.3 26 12.0 -42.9 274 61 339.3 339.4 294.3 339.7 0.09 29 251 10883 -44.1 -46.2 80 2.1 -44.2 275 63 340.1 340.2 294.6 341.1 0.24 30 250 10910 -44.3 -46.5 79 2.2 -44.5 275 63 340.2 340.3 294.6 341.1 0.23 31 243 11099 -45.7 -47.5 82 1.8 -45.8 276 64 340.9 340.9 294.7 341.7 0.22 32 222 11693 -51.1 -53.6 74 2.5 -51.2 280 68 341.5 341.6 294.8 342.0 0.12 33 200 12360 -57.3 -60.7 65 3.4 -57.4 280 65 342.0 342.0 294.8 342.3 0.05 34 167 13474 -68.1 -71.0 66 2.9 -68.1 264 61 342.1 342.1 294.8 342.2 0.02 35 161 13693 -69.9 -73.4 60 3.5 -69.9 261 60 342.7 342.7 295.0 342.7 0.01 36 154 13961 -66.7 -73.7 37 7.0 -66.8 257 59 352.5 352.5 297.2 352.6 0.01 37 150 14120 -66.7 -75.7 27 9.0 -66.8 255 58 355.2 355.2 297.7 355.2 0.01 38 141 14495 -65.7 -76.7 20 11.0 -65.8 256 56 363.3 363.3 299.4 363.3 0.01 39 139 14582 -66.1 -77.1 20 11.0 -66.2 256 55 364.1 364.1 299.5 364.1 0.01 40 126 15171 -70.5 -80.5 22 10.0 -70.5 258 52 366.5 366.5 299.9 366.5 0.00 41 111 15917 -73.7 -82.7 24 9.0 -73.7 260 48 374.0 374.0 301.2 374.0 0.00 42 106 16186 -73.9 -83.9 20 10.0 -73.9 245 41 378.6 378.6 302.0 378.6 0.00 43 103 16355 -70.9 -82.9 15 12.0 -70.9 235 37 387.5 387.5 303.4 387.5 0.00 44 100 16530 -70.9 -83.9 13 13.0 -70.9 225 33 390.7 390.7 303.9 390.8 0.00 45 70 18630 -74.3 -86.3 14 12.0 -74.3 220 3 425.4 425.4 308.3 425.4 0.00 46 60 19545 -65.9 -83.9 6 18.0 -66.1 160 4 463.4 463.4 312.1 463.4 0.01 47 51 20521 -69.1 -87.1 6 18.0 -69.3 98 6 477.9 477.9 313.3 478.0 0.00 48 50 20640 -67.5 -86.5 5 19.0 -67.7 90 6 484.4 484.4 313.8 484.4 0.00 49 46 21148 -62.7 -84.7 4 22.0 -63.1 92 9 507.7 507.7 315.5 507.7 0.01 50 30 23790 -61.1 -86.1 2 25.0 -61.9 100 25 578.1 578.1 319.6 578.1 0.01 51 27 24448 -58.9 -85.9 2 27.0 -60.0 601.9 601.9 320.7 602.0 0.01 52 25 24929 -60.7 -87.7 2 27.0 -61.7 610.2 610.2 321.0 610.2 0.01 53 20 26341 -53.5 -86.5 1 33.0 -56.1 672.4 672.4 323.5 672.5 0.01 TRP 111 15917 -73.7 -82.7 24 9.0 -73.7 260 48 374.0 374.0 301.2 374.0 0.00 WND 222 11693 -51.1 -53.6 74 2.5 -51.2 280 68 341.5 341.6 294.8 342.0 0.12 Sounding variables and indices 1000-500 mb thick: 5702.00 m Freezing level: 590.00 mb = 4580.77 m = 15028.58 ft Wetbulb zero: 654.16 mb = 3741.62 m = 12275.51 ft Precipitable water: 0.75 inches Sfc-500 mean rel hum: 40.38 % Est. max temperature: 25.89 C = 78.60 F Sfc-Lift cond lev (LCL): 838.27 mb = 1664.84 m = 5462.00 ft T: 13.32 C 700-500 lapse rate: 6.72 C/km ThetaE index: 4.25 C Layer 850.0- 816.0 mb Conv cond level (CCL): 620.34 mb = 4172.22 m = 13688.22 ft Mean mixing ratio: 7.74 g/kg Conv temperature: 29.34 C = 84.82 F Cap Strength: 5.37 C Lifted Index: 2.55 C Risk: None Lifted Index @300 mb: 6.10 C Lifted Index @700 mb: 5.13 C Showalter Index: 2.03 C Risk: Showers probable Total Totals Index: 43.10 C Risk: None Vertical Totals Index: 22.70 C Cross Totals Index: 20.40 C K Index: 23.60 Risk: 20-40 % chance of thunderstorms Sweat Index: 189.80 Risk: None Energy Index: -0.06 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 76.05 J/kg Max Up Vert Vel: 12.33 m/s Conv Inhibition (B-): 26523.17 J/kg Cap Strength: 5.37 C Lift Cond Lev (LCL): 708.86 mb = 3079.06 m = 10101.78 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 250 at 13 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 20 7 -2.4 -6.6 | 53 19 -14.8 -11.2 1 850 1548 10 10 -1.7 -9.8 | 44 20 -14.2 -14.5 2 793 2134 255 5 4.8 1.3 | 66 8 -7.6 -3.3 3 765 2438 265 9 9.0 0.8 | 42 5 -3.5 -3.9 4 700 3185 180 10 0.0 10.0 | 113 14 -12.4 5.4 5 635 3962 165 17 -4.4 16.4 | 125 21 -16.8 11.8 6 589 4572 175 19 -1.7 18.9 | 135 20 -14.1 14.3 7 546 5182 200 19 6.5 17.9 | 156 14 -5.9 13.2 8 500 5880 235 27 22.1 15.5 | 222 15 9.7 10.8 9 467 6401 235 27 22.1 15.5 | 222 15 9.7 10.8 10 431 7010 255 24 23.2 6.2 | 262 11 10.8 1.6 11 400 7580 260 24 23.6 4.2 | 272 11 11.2 -0.5 12 366 8230 270 23 23.0 -0.0 | 294 12 10.6 -4.6 13 336 8839 270 31 31.0 -0.0 | 284 19 18.6 -4.6 14 300 9660 270 54 54.0 -0.0 | 276 42 41.6 -4.6 15 250 10910 275 63 62.8 -5.5 | 281 51 50.3 -10.1 16 222 11693 280 68 67.0 -11.8 | 287 57 54.5 -16.5 17 200 12360 280 65 64.0 -11.3 | 287 54 51.6 -15.9 18 150 14120 255 58 56.0 15.0 | 257 45 43.6 10.4 19 111 15917 260 48 47.3 8.3 | 264 35 34.8 3.7 20 100 16530 225 33 23.3 23.3 | 210 22 10.9 18.7 21 70 18630 220 3 1.9 2.3 | 77 11 -10.5 -2.3 22 50 20640 90 6 -6.0 0.0 | 76 19 -18.4 -4.6 23 30 23790 100 25 -24.6 4.3 | 90 37 -37.1 -0.3 Wind Parameters Mean winds (0-6000m): 219.5 at 17.7 knts Storm direction: 249.5 at 13.3 knts Shear (0-3000m) pos: 0.5 neg: 4.0 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 81.2 deg Storm rel helicity (0-3000m) pos: 49.5 neg: -31.8 tot: 17.7 m^2/s^2 ave: 5.9 10^-3 m/s^2 rel: 0.19 Storm rel vorticity (0-3000m) horiz: 7.8 stream: 1.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.09 Bulk Shear: 69.73 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 ------------------------------------------------------------------------------- 500 341 8 39 16| 0.0 10.3 10.3| 6.0 -26.9 -20.9 -41.8 -0.23| 15.5 -3.5 1000 303 7 35 11| 0.0 7.3 7.3| 11.7 -30.0 -18.3 -18.3 -0.11| 11.2 -1.3 1500 266 8 46 6| 0.0 5.7 5.7| 18.8 -30.0 -11.1 -7.4 0.10| 10.7 1.0 2000 229 9 101 6| 0.0 5.0 5.0| 25.6 -31.8 -6.3 -3.1 0.11| 9.7 1.1 2500 198 10 118 10| 0.0 4.8 4.8| 33.3 -31.8 1.4 0.6 0.14| 8.8 1.2 3000 187 11 121 13| 0.5 4.0 4.5| 49.5 -31.8 17.7 5.9 0.19| 7.8 1.5 4000 190 14 131 13| 2.3 3.0 5.3|105.2 -31.8 73.4 18.4 0.36| 7.9 2.9 5000 207 16 153 11| 2.8 2.4 5.2|144.4 -31.8 112.6 22.5 0.46| 7.4 3.4 6000 220 18 173 9| 2.6 2.0 4.6|172.7 -31.8 140.9 23.5 0.51| 7.0 3.6 Wrote GIF file: /home/apache/climate/data/raob//FAIR/skewt/FAIR.skewt.20251208.00.gif