UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101512.upa.cvt Date: 1200Z 15 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 15 OCT 25 Station: VVNB WMO ident: 48820 Latitude: 21.02 Longitude: 105.80 Elevation: 6.00 ------------------------------------------------------------------------------- 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 1011 6 27.4 23.8 81 3.6 24.7 175 1 299.6 303.0 297.5 354.3 18.67 1 1000 100 26.2 23.4 85 2.8 24.2 150 5 299.4 302.7 297.3 353.2 18.41 2 984 243 25.0 23.4 91 1.6 23.9 145 7 299.5 302.9 297.5 354.3 18.72 3 925 786 22.6 20.2 86 2.4 20.9 125 15 302.4 305.4 296.8 350.7 16.32 4 850 1520 18.6 15.9 84 2.7 16.8 130 13 305.6 308.1 295.7 346.0 13.49 5 794 2103 15.0 13.7 92 1.3 14.1 137 13 307.8 310.1 295.7 345.6 12.51 6 742 2676 12.6 9.4 81 3.2 10.6 144 13 311.2 313.1 294.8 342.0 10.03 7 700 3165 10.0 7.5 84 2.5 8.5 150 13 313.6 315.3 294.9 342.5 9.34 8 685 3345 9.6 4.6 71 5.0 6.6 153 12 315.1 316.6 294.2 339.5 7.79 9 549 5148 -0.3 -2.2 87 1.9 -1.3 179 6 323.9 325.1 295.1 343.3 5.94 10 536 5339 -1.3 -6.3 69 5.0 -3.7 182 5 324.9 325.8 294.3 339.7 4.46 11 516 5641 -3.1 -5.5 83 2.4 -4.3 186 4 326.3 327.3 295.0 342.6 4.93 12 512 5703 -2.9 -9.9 58 7.0 -6.0 187 4 327.3 328.0 294.1 339.1 3.52 13 505 5811 -3.7 -6.2 83 2.5 -4.9 189 3 327.6 328.5 295.1 343.5 4.77 14 500 5890 -4.3 -7.7 77 3.4 -5.9 190 3 327.8 328.7 294.8 342.2 4.29 15 484 6146 -5.5 -14.5 49 9.0 -9.1 182 3 329.4 329.9 293.9 338.2 2.57 16 466 6443 -7.5 -12.5 67 5.0 -9.6 173 4 330.5 331.1 294.6 341.3 3.14 17 460 6544 -8.3 -15.3 57 7.0 -11.0 169 4 330.7 331.2 294.2 339.5 2.53 18 457 6595 -8.3 -22.3 31 14.0 -12.8 168 4 331.3 331.6 293.4 336.3 1.40 19 451 6697 -9.1 -14.0 68 4.9 -11.1 165 4 331.6 332.2 294.7 341.5 2.87 20 434 6994 -10.5 -16.5 61 6.0 -12.8 155 4 333.5 334.0 294.8 342.0 2.43 21 428 7102 -10.7 -26.7 26 16.0 -15.2 152 4 334.5 334.7 293.9 338.2 1.01 22 419 7265 -11.7 -22.7 40 11.0 -15.2 146 5 335.3 335.6 294.4 340.6 1.47 23 414 7357 -11.9 -32.9 16 21.0 -16.9 143 5 336.2 336.3 293.9 338.4 0.58 24 407 7488 -12.9 -24.9 36 12.0 -16.4 139 5 336.5 336.8 294.6 341.1 1.25 25 401 7601 -13.1 -35.1 14 22.0 -17.9 136 5 337.7 337.8 294.2 339.6 0.48 26 400 7620 -13.3 -34.3 15 21.0 -18.0 135 5 337.7 337.8 294.3 339.7 0.52 27 381 7990 -16.1 -23.1 55 7.0 -18.2 139 5 338.7 339.1 295.4 344.4 1.56 28 344 8754 -20.7 -33.7 30 13.0 -23.4 148 4 342.5 342.7 295.5 345.0 0.64 29 322 9240 -25.5 -33.5 47 8.0 -27.0 154 3 342.4 342.6 295.6 345.1 0.70 30 303 9679 -29.3 -30.2 92 0.9 -29.5 159 3 343.1 343.3 296.0 347.0 1.03 31 300 9750 -30.1 -31.8 85 1.7 -30.4 160 3 343.0 343.1 295.8 346.3 0.89 32 297 9821 -30.5 -31.9 87 1.4 -30.7 164 3 343.4 343.6 295.9 346.8 0.89 33 250 11020 -39.9 -44.2 63 4.3 -40.3 235 5 346.7 346.8 296.2 348.0 0.30 34 205 12340 -51.1 -59.1 38 8.0 -51.4 22 5 349.4 349.4 296.5 349.7 0.06 35 200 12500 -52.5 -58.5 48 6.0 -52.7 40 5 349.6 349.6 296.6 349.9 0.07 36 194 12697 -54.1 -60.1 48 6.0 -54.3 38 5 350.1 350.1 296.7 350.4 0.06 37 189 12864 -55.7 -67.7 21 12.0 -55.9 37 5 350.2 350.2 296.7 350.3 0.02 38 183 13069 -57.7 -63.7 46 6.0 -57.8 35 5 350.2 350.2 296.7 350.3 0.04 39 181 13138 -58.3 -62.1 62 3.8 -58.4 35 5 350.3 350.3 296.7 350.5 0.05 40 175 13350 -59.7 -67.7 35 8.0 -59.8 33 5 351.4 351.4 297.0 351.5 0.02 41 163 13792 -62.9 -71.9 29 9.0 -63.0 29 5 353.2 353.2 297.3 353.3 0.01 42 150 14300 -66.5 -72.5 43 6.0 -66.5 25 5 355.5 355.5 297.8 355.6 0.01 43 143 14588 -68.5 -73.5 48 5.0 -68.5 356.9 356.9 298.1 357.0 0.01 44 129 15202 -70.9 -82.9 15 12.0 -70.9 363.3 363.3 299.4 363.3 0.00 45 115 15875 -75.5 -85.5 19 10.0 -75.5 366.9 366.9 300.0 366.9 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5790.00 m Freezing level: 553.12 mb = 5092.88 m = 16708.73 ft Wetbulb zero: 571.66 mb = 4818.02 m = 15806.96 ft Precipitable water: 2.37 inches Sfc-500 mean rel hum: 82.27 % Est. max temperature: 32.95 C = 91.31 F Sfc-Lift cond lev (LCL): 959.98 mb = 459.86 m = 1508.69 ft T: 24.04 C 700-500 lapse rate: 5.25 C/km ThetaE index: 12.30 C Layer 925.0- 700.0 mb Conv cond level (CCL): 889.84 mb = 1122.35 m = 3682.22 ft Mean mixing ratio: 17.58 g/kg Conv temperature: 31.70 C = 89.05 F Cap Strength: 1.30 C Lifted Index: -2.27 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.11 C Lifted Index @700 mb: -1.27 C Showalter Index: 0.13 C Risk: Thunderstorms probable Total Totals Index: 43.10 C Risk: None Vertical Totals Index: 22.90 C Cross Totals Index: 20.20 C K Index: 36.30 Risk: > 80 % chance of thunderstorms Sweat Index: 219.80 Risk: None Energy Index: -0.82 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 807.18 J/kg Max Up Vert Vel: 40.18 m/s Conv Inhibition (B-): 21.06 J/kg Cap Strength: 1.30 C Lift Cond Lev (LCL): 930.18 mb = 736.89 m = 2417.58 ft Lev Free Conv (LFC): 835.18 mb = 1670.44 m = 5480.36 ft Equ Level (EL): 165.18 mb = 13708.87 m = 44976.06 ft B at Equ Level: 801.25 J/kg Wind level data Storm motion: 174 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 1011 6 175 1 -0.1 1.0 | 353 7 0.8 -6.5 1 1000 100 150 5 -2.5 4.3 | 27 4 -1.6 -3.2 2 925 786 125 15 -12.3 8.6 | 95 11 -11.4 1.1 3 850 1520 130 13 -10.0 8.4 | 95 9 -9.1 0.8 4 700 3165 150 13 -6.5 11.3 | 123 7 -5.6 3.7 5 500 5890 190 3 0.5 3.0 | 343 5 1.4 -4.6 6 400 7620 135 5 -3.5 3.5 | 34 5 -2.7 -4.0 7 300 9750 160 3 -1.0 2.8 | 2 5 -0.2 -4.7 8 250 11020 235 5 4.1 2.9 | 313 7 4.9 -4.7 9 200 12500 40 5 -3.2 -3.8 | 12 12 -2.4 -11.4 10 150 14300 25 5 -2.1 -4.5 | 6 12 -1.3 -12.1 Wind Parameters Mean winds (0-6000m): 143.5 at 10.1 knts Storm direction: 173.5 at 7.6 knts Shear (0-3000m) pos: 0.9 neg: 2.4 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 126.9 deg Storm rel helicity (0-3000m) pos: 17.1 neg: -0.2 tot: 16.9 m^2/s^2 ave: 5.6 10^-3 m/s^2 rel: 0.54 Storm rel vorticity (0-3000m) horiz: 3.7 stream: 2.0 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 621.24 Bulk Shear: 1.30 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 ------------------------------------------------------------------------------- 500 141 7 59 4| 0.0 10.5 10.5| 8.6 0.0 8.6 17.2 0.73| 10.9 7.9 1000 130 10 83 7| 0.0 7.1 7.1| 9.8 -0.1 9.7 9.7 0.52| 8.1 4.2 1500 129 11 88 8| 0.5 4.7 5.3| 9.8 -0.2 9.6 6.4 0.47| 6.0 2.8 2000 130 12 91 8| 0.7 3.5 4.2| 12.4 -0.2 12.1 6.1 0.49| 4.8 2.4 2500 132 12 94 8| 0.8 2.8 3.6| 14.8 -0.2 14.6 5.8 0.52| 4.1 2.1 3000 134 12 98 8| 0.9 2.4 3.3| 17.1 -0.2 16.9 5.6 0.54| 3.7 2.0 4000 139 12 103 7| 1.1 1.8 2.9| 18.8 -0.2 18.6 4.7 0.49| 3.3 1.6 5000 142 11 103 6| 1.2 1.4 2.6| 18.8 -0.4 18.5 3.7 0.38| 3.1 1.2 6000 144 10 97 5| 1.1 1.2 2.3| 19.4 -0.4 19.0 3.2 0.36| 2.9 1.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251015.12.gif