UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101811.upa.cvt Date: 1100Z 18 OCT 25 Searching for FSSS... Searching the city database file for: FSSS ... Date:1100Z 18 OCT 25 Station: FSSS WMO ident: 63985 Latitude: -4.68 Longitude: 55.53 Elevation: 4.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1010 4 28.8 20.8 62 8.0 23.1 220 8 301.1 303.9 295.9 346.6 15.49 1 1000 88 27.0 21.0 70 6.0 22.7 230 9 300.1 303.0 295.8 346.6 15.85 2 987 204 25.6 20.6 74 5.0 22.1 238 8 299.9 302.7 295.7 345.7 15.66 3 925 774 21.0 18.3 85 2.7 19.1 275 6 300.8 303.4 295.1 343.2 14.46 4 850 1502 15.6 14.7 94 0.9 15.0 275 15 302.5 304.8 294.1 339.4 12.47 5 833 1673 14.2 14.0 99 0.2 14.1 272 15 302.8 305.0 294.0 338.8 12.15 6 815 1859 17.0 7.0 52 10.0 11.0 270 15 307.6 309.1 292.0 331.2 7.73 7 751 2553 12.8 6.8 67 6.0 9.2 259 16 310.4 311.9 293.3 335.8 8.28 8 700 3141 9.6 -6.4 32 16.0 2.0 250 16 313.1 313.8 289.9 323.9 3.38 9 684 3333 8.4 -12.6 21 21.0 -0.3 241 15 313.9 314.3 289.0 320.8 2.12 10 660 3627 7.2 -11.8 24 19.0 -0.9 227 14 315.7 316.2 289.8 323.4 2.34 11 650 3753 7.4 -3.6 46 11.0 1.8 221 13 317.3 318.2 292.2 331.8 4.51 12 635 3945 5.8 -2.2 56 8.0 1.6 212 12 317.6 318.6 292.8 334.1 5.13 13 606 4326 3.6 -16.4 22 20.0 -4.0 194 10 319.4 319.7 290.3 325.3 1.75 14 596 4461 3.0 -4.0 60 7.0 -0.6 188 10 320.2 321.1 293.2 335.7 4.78 15 566 4877 0.0 -3.5 77 3.5 -1.8 168 8 321.4 322.5 293.9 338.4 5.22 16 548 5136 -1.3 -15.3 34 14.0 -6.7 155 7 322.9 323.3 291.7 330.1 2.12 17 534 5342 -2.7 -5.2 83 2.5 -3.9 145 6 323.6 324.6 294.2 339.6 4.87 18 506 5767 -5.9 -7.8 86 1.9 -6.8 125 3 324.7 325.6 294.0 338.7 4.21 19 500 5860 -6.3 -8.8 82 2.5 -7.4 120 3 325.4 326.1 293.9 338.5 3.94 20 491 6002 -7.1 -8.2 92 1.1 -7.6 130 3 326.1 326.9 294.3 340.1 4.20 21 488 6050 -7.1 -11.2 72 4.1 -8.8 133 3 326.6 327.3 293.8 337.9 3.33 22 453 6628 -9.5 -15.5 62 6.0 -11.8 173 2 330.7 331.2 294.1 339.4 2.53 23 422 7173 -13.1 -16.7 74 3.6 -14.4 211 1 332.8 333.3 294.7 341.4 2.45 24 413 7337 -13.3 -22.3 47 9.0 -16.1 223 1 334.6 334.9 294.4 340.2 1.55 25 400 7580 -15.3 -24.3 46 9.0 -17.9 240 1 335.1 335.4 294.3 339.9 1.34 26 395 7675 -15.7 -27.7 35 12.0 -18.8 234 2 335.8 336.0 294.2 339.4 0.99 27 369 8184 -19.7 -25.7 59 6.0 -21.2 199 5 337.1 337.3 294.7 341.7 1.28 28 361 8347 -20.3 -31.3 37 11.0 -22.7 188 7 338.4 338.5 294.6 341.3 0.78 29 319 9251 -26.9 -39.9 28 13.0 -28.8 126 14 341.4 341.5 295.0 342.9 0.37 30 318 9273 -27.1 -40.1 28 13.0 -29.0 124 14 341.5 341.5 295.0 342.9 0.37 31 300 9690 -30.9 -40.9 37 10.0 -32.2 95 17 341.8 341.9 295.1 343.2 0.36 32 265 10553 -38.1 -44.1 53 6.0 -38.7 92 33 343.6 343.7 295.4 344.8 0.29 33 254 10843 -40.7 -50.7 33 10.0 -41.3 90 38 344.0 344.0 295.4 344.6 0.14 34 250 10950 -41.5 -50.5 37 9.0 -42.1 90 40 344.4 344.4 295.5 345.0 0.15 35 228 11566 -47.3 -55.3 39 8.0 -47.6 90 53 344.7 344.7 295.6 345.1 0.09 36 218 11861 -49.3 -64.3 16 15.0 -49.7 90 59 346.1 346.1 295.8 346.2 0.03 37 210 12105 -50.9 -59.9 34 9.0 -51.2 90 64 347.3 347.3 296.1 347.5 0.06 38 200 12420 -53.7 -64.7 25 11.0 -53.9 90 71 347.7 347.7 296.1 347.9 0.03 39 185 12918 -57.4 -74.3 10 16.9 -57.6 95 79 349.6 349.6 296.5 349.6 0.01 40 180 13091 -58.7 -77.7 7 19.0 -58.9 92 76 350.2 350.2 296.7 350.2 0.01 41 150 14220 -65.9 -82.9 8 17.0 -66.0 70 59 356.6 356.6 298.0 356.6 0.00 42 137 14766 -68.3 -84.3 8 16.0 -68.4 78 50 361.7 361.7 299.0 361.7 0.00 43 106 16260 -79.5 -87.5 25 8.0 -79.5 100 26 367.9 367.9 300.2 367.9 0.00 44 100 16590 -78.9 -85.9 31 7.0 -78.9 150 15 375.3 375.3 301.5 375.3 0.00 45 96 16822 -80.5 -86.5 36 6.0 -80.5 165 16 376.6 376.6 301.7 376.6 0.00 46 92 17064 -77.3 -86.3 22 9.0 -77.3 180 17 387.5 387.5 303.4 387.5 0.00 47 74 18326 -73.9 -86.9 12 13.0 -74.0 260 23 419.6 419.6 307.7 419.6 0.00 48 70 18650 -75.5 -87.5 14 12.0 -75.6 280 25 422.9 422.9 308.0 422.9 0.00 49 59 19635 -77.7 -89.7 13 12.0 -77.7 359 31 439.1 439.1 309.8 439.1 0.00 50 53 20255 -73.7 -90.7 6 17.0 -73.8 48 35 462.1 462.1 312.0 462.1 0.00 51 50 20600 -68.5 -90.5 3 22.0 -68.7 75 37 482.1 482.1 313.6 482.1 0.00 52 43 21497 -70.9 -90.9 4 20.0 -71.1 79 45 497.4 497.4 314.8 497.4 0.00 53 39 22083 -64.3 -89.3 2 25.0 -64.7 82 50 528.2 528.2 316.8 528.2 0.00 54 30 23700 -60.5 -87.5 2 27.0 -61.4 90 63 579.7 579.7 319.6 579.7 0.01 55 27 24360 -58.7 -86.7 2 28.0 -59.9 87 64 602.5 602.5 320.7 602.5 0.01 56 27 24360 -59.1 -86.1 2 27.0 -60.2 87 64 601.4 601.4 320.7 601.4 0.01 57 20 26270 -52.9 -82.9 1 30.0 -55.6 80 65 674.3 674.3 323.6 674.4 0.02 58 18 26954 -52.5 -83.5 1 31.0 -55.5 91 58 696.1 696.1 324.3 696.3 0.02 59 14 28632 -40.1 -77.1 1 37.0 -48.7 116 40 790.1 790.1 327.0 790.8 0.08 60 12 29682 -42.9 -78.9 1 36.0 -50.8 132 30 815.7 815.8 327.6 816.4 0.07 61 10 30920 -41.3 -78.3 1 37.0 -50.8 150 17 865.4 865.4 328.7 866.3 0.09 62 9.0 31637 -40.3 -78.3 1 38.0 -50.9 895.7 895.8 329.4 896.7 0.10 63 8.0 32447 -36.7 -77.7 1 41.0 -50.0 940.7 940.8 330.2 942.1 0.12 64 7.7 32714 -32.1 -75.1 1 43.0 -48.5 969.6 969.7 330.7 971.7 0.19 65 7.2 33186 -34.3 -76.3 1 42.0 -49.7 979.3 979.4 330.9 981.3 0.17 TRP 106 16260 -79.5 -87.5 25 8.0 -79.5 100 26 367.9 367.9 300.2 367.9 0.00 WND 185 12918 -57.4 -74.3 10 16.9 -57.6 95 79 349.6 349.6 296.5 349.6 0.01 Sounding variables and indices 1000-500 mb thick: 5772.00 m Freezing level: 566.00 mb = 4877.19 m = 16001.10 ft Wetbulb zero: 685.91 mb = 3309.41 m = 10857.51 ft Precipitable water: 1.82 inches Sfc-500 mean rel hum: 62.95 % Est. max temperature: 29.97 C = 85.94 F Sfc-Lift cond lev (LCL): 899.44 mb = 1015.21 m = 3330.69 ft T: 19.21 C 700-500 lapse rate: 5.85 C/km ThetaE index: 15.45 C Layer 1000.0- 751.0 mb Conv cond level (CCL): 886.77 mb = 1137.42 m = 3731.64 ft Mean mixing ratio: 15.08 g/kg Conv temperature: 29.35 C = 84.84 F Cap Strength: 2.16 C Lifted Index: -1.40 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.46 C Lifted Index @700 mb: 0.50 C Showalter Index: 0.77 C Risk: Thunderstorms probable Total Totals Index: 42.90 C Risk: None Vertical Totals Index: 21.90 C Cross Totals Index: 21.00 C K Index: 20.60 Risk: 20-40 % chance of thunderstorms Sweat Index: 209.40 Risk: None Energy Index: -0.21 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 71.01 J/kg Max Up Vert Vel: 11.92 m/s Conv Inhibition (B-): 8.47 J/kg Cap Strength: 2.08 C Lift Cond Lev (LCL): 902.94 mb = 981.78 m = 3221.04 ft Lev Free Conv (LFC): 867.94 mb = 1322.15 m = 4337.71 ft Equ Level (EL): 817.94 mb = 1828.45 m = 5998.76 ft B at Equ Level: 10.21 J/kg Max Parcel Lev (MPL): 797.94 mb = 2038.43 m = 6687.69 ft Wind level data Storm motion: 284 at 8 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 1010 4 220 8 5.1 6.1 | 161 9 -2.7 8.1 1 1000 88 230 9 6.9 5.8 | 173 8 -1.0 7.8 2 925 774 275 6 6.0 -0.5 | 128 2 -1.9 1.5 3 850 1502 275 15 14.9 -1.3 | 264 7 7.1 0.7 4 700 3141 250 16 15.0 5.5 | 224 10 7.2 7.5 5 500 5860 120 3 -2.6 1.5 | 109 11 -10.5 3.5 6 400 7580 240 1 0.9 0.5 | 110 7 -7.0 2.5 7 300 9690 95 17 -16.9 1.5 | 98 25 -24.8 3.5 8 250 10950 90 40 -40.0 0.0 | 92 48 -47.9 2.0 9 200 12420 90 71 -71.0 0.0 | 91 79 -78.9 2.0 10 185 12918 95 79 -78.7 6.9 | 96 87 -86.6 8.9 11 150 14220 70 59 -55.4 -20.2 | 74 66 -63.3 -18.2 12 106 16260 100 26 -25.6 4.5 | 101 34 -33.5 6.5 13 100 16590 150 15 -7.5 13.0 | 134 21 -15.4 15.0 14 70 18650 280 25 24.6 -4.3 | 278 17 16.7 -2.3 15 50 20600 75 37 -35.7 -9.6 | 80 44 -43.6 -7.6 16 30 23700 90 63 -63.0 0.0 | 92 71 -70.9 2.0 17 20 26270 80 65 -64.0 -11.3 | 83 72 -71.9 -9.3 18 10 30920 150 17 -8.5 14.7 | 136 23 -16.4 16.7 Wind Parameters Mean winds (0-6000m): 254.4 at 10.9 knts Storm direction: 284.4 at 8.1 knts Shear (0-3000m) pos: 1.3 neg: 1.5 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 65.0 deg Storm rel helicity (0-3000m) pos: 6.7 neg: -14.1 tot: -7.4 m^2/s^2 ave: -2.5 10^-3 m/s^2 rel: -0.05 Storm rel vorticity (0-3000m) horiz: 4.0 stream: -0.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 39.48 Bulk Shear: 1.80 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 ------------------------------------------------------------------------------- 500 239 8 172 6| 5.1 0.0 5.1| 3.7 -0.7 3.0 6.0 0.19| 6.1 1.2 1000 252 8 171 4| 4.0 0.0 4.0| 4.6 -1.9 2.7 2.7 0.17| 5.6 0.9 1500 263 9 199 3| 2.7 2.1 4.8| 6.7 -1.9 4.8 3.2 0.25| 5.8 1.5 2000 266 11 223 4| 2.0 1.7 3.7| 6.7 -5.6 1.1 0.5 0.13| 4.9 0.6 2500 265 12 230 5| 1.6 1.5 3.1| 6.7 -9.7 -2.9 -1.2 0.03| 4.3 0.1 3000 263 12 231 6| 1.3 1.5 2.8| 6.7 -14.1 -7.4 -2.5 -0.05| 4.0 -0.2 4000 256 13 221 7| 1.0 1.5 2.5| 6.7 -47.3 -40.6 -10.2 -0.36| 4.5 -1.6 5000 252 12 212 7| 0.8 1.4 2.2| 6.7 -79.6 -72.9 -14.6 -0.49| 4.5 -2.2 6000 254 11 207 6| 0.7 1.0 1.6| 7.6 -95.2 -87.6 -14.6 -0.52| 4.3 -2.2 Wrote GIF file: /home/apache/climate/data/raob//FSSS/skewt/FSSS.skewt.20251018.11.gif