UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101312.upa.cvt Date: 1200Z 13 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 13 OCT 25 Station: VVTS WMO ident: 48900 Latitude: 10.82 Longitude: 106.67 Elevation: 19.00 ------------------------------------------------------------------------------- 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 1008 19 26.6 25.4 93 1.2 25.7 85 1 299.1 302.8 298.6 359.5 20.67 1 1000 75 27.0 24.8 88 2.2 25.4 90 3 300.1 303.8 298.5 359.1 20.08 2 997 102 27.2 24.9 87 2.3 25.5 93 3 300.6 304.3 298.8 360.3 20.27 3 925 763 22.6 21.0 91 1.6 21.5 170 11 302.4 305.6 297.3 353.2 17.17 4 880 1197 19.8 19.1 96 0.7 19.3 170 9 303.9 306.8 297.0 351.5 16.01 5 850 1497 18.6 17.0 90 1.6 17.5 170 7 305.6 308.3 296.4 349.0 14.49 6 816 1847 16.6 16.1 97 0.5 16.3 170 7 307.1 309.8 296.6 350.0 14.25 7 701 3134 11.4 5.4 67 6.0 7.8 170 5 315.0 316.5 294.4 340.2 8.05 8 700 3146 11.4 5.4 67 6.0 7.8 170 5 315.1 316.7 294.4 340.4 8.06 9 668 3536 8.8 6.5 85 2.3 7.4 175 6 316.4 318.2 295.6 345.1 9.13 10 643 3851 7.4 2.5 71 4.9 4.6 179 6 318.3 319.7 294.6 341.1 7.15 11 639 3903 7.6 0.6 61 7.0 3.7 179 6 319.1 320.3 294.1 339.2 6.27 12 512 5693 -4.3 -5.9 89 1.6 -5.1 203 9 325.6 326.5 294.7 341.5 4.81 13 500 5880 -4.7 -8.6 74 3.9 -6.5 205 9 327.3 328.1 294.5 340.7 4.00 14 472 6330 -7.7 -10.2 82 2.5 -8.8 242 7 329.0 329.8 294.7 341.7 3.73 15 461 6513 -7.5 -14.5 57 7.0 -10.3 258 7 331.5 332.1 294.5 340.8 2.70 16 400 7600 -14.7 -16.3 88 1.6 -15.3 350 3 335.9 336.4 295.6 345.3 2.68 17 398 7638 -14.9 -16.4 88 1.5 -15.4 351 3 336.1 336.7 295.6 345.5 2.67 18 342 8770 -22.1 -24.9 78 2.8 -22.8 20 4 341.2 341.5 295.9 346.7 1.48 19 341 8791 -22.1 -25.5 74 3.4 -23.0 21 4 341.5 341.8 295.9 346.7 1.41 20 323 9188 -25.3 -27.8 80 2.5 -25.9 31 4 342.4 342.7 296.0 346.9 1.20 21 300 9720 -29.3 -31.5 81 2.2 -29.7 45 5 344.1 344.3 296.1 347.6 0.92 22 258 10783 -37.9 -42.1 65 4.2 -38.4 335 8 346.6 346.7 296.2 348.0 0.37 23 250 11000 -39.5 -42.9 70 3.4 -39.8 320 9 347.3 347.4 296.4 348.7 0.35 24 200 12480 -52.1 -55.4 67 3.3 -52.2 5 13 350.3 350.3 296.8 350.7 0.10 25 196 12610 -53.3 -56.6 67 3.3 -53.4 6 13 350.4 350.4 296.8 350.8 0.09 26 171 13472 -61.7 -63.1 83 1.4 -61.7 10 15 350.4 350.4 296.8 350.6 0.05 27 156 14034 -66.9 -70.1 64 3.2 -67.0 14 16 350.9 350.9 296.8 351.0 0.02 28 152 14191 -68.3 -72.8 52 4.5 -68.4 15 17 351.1 351.1 296.9 351.2 0.01 29 150 14270 -68.7 -73.1 53 4.4 -68.7 15 17 351.7 351.7 297.0 351.8 0.01 30 111 16017 -79.9 -84.5 46 4.6 -79.9 55 17 362.4 362.4 299.2 362.4 0.00 31 107 16225 -79.5 -84.4 44 4.9 -79.5 60 17 367.0 367.0 300.0 367.0 0.00 32 100 16610 -76.9 -83.9 32 7.0 -76.9 105 44 379.1 379.1 302.1 379.2 0.00 TRP 107 16225 -79.5 -84.4 44 4.9 -79.5 60 17 367.0 367.0 300.0 367.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5805.00 m Freezing level: 557.89 mb = 5045.98 m = 16554.86 ft Wetbulb zero: 585.37 mb = 4610.90 m = 15127.43 ft Precipitable water: 2.50 inches Sfc-500 mean rel hum: 81.77 % Est. max temperature: 32.70 C = 90.86 F Sfc-Lift cond lev (LCL): 991.09 mb = 154.15 m = 505.73 ft T: 26.84 C 700-500 lapse rate: 5.89 C/km ThetaE index: 11.24 C Layer 925.0- 816.0 mb Conv cond level (CCL): 917.62 mb = 832.77 m = 2732.14 ft Mean mixing ratio: 18.57 g/kg Conv temperature: 30.19 C = 86.34 F Cap Strength: 0.66 C Lifted Index: -3.96 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -4.30 C Lifted Index @700 mb: -0.87 C Showalter Index: -1.38 C Risk: Thunderstorms probable Total Totals Index: 45.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.30 C Cross Totals Index: 21.70 C K Index: 34.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 227.00 Risk: None Energy Index: -1.66 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1707.16 J/kg Max Up Vert Vel: 58.43 m/s Conv Inhibition (B-): 2.72 J/kg Cap Strength: 0.66 C Lift Cond Lev (LCL): 932.73 mb = 689.55 m = 2262.29 ft Lev Free Conv (LFC): 897.73 mb = 1023.49 m = 3357.88 ft Equ Level (EL): 127.73 mb = 15202.59 m = 49876.67 ft B at Equ Level: 1693.10 J/kg Wind level data Storm motion: 210 at 5 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 1008 19 85 1 -1.0 -0.1 | 38 6 -3.6 -4.6 1 1000 75 90 3 -3.0 0.0 | 51 7 -5.6 -4.5 2 925 763 170 11 -1.9 10.8 | 144 8 -4.5 6.3 3 850 1497 170 7 -1.2 6.9 | 122 5 -3.8 2.4 4 700 3146 170 5 -0.9 4.9 | 97 4 -3.5 0.4 5 500 5880 205 9 3.8 8.2 | 198 4 1.2 3.7 6 400 7600 350 3 0.5 -3.0 | 16 8 -2.1 -7.5 7 300 9720 45 5 -3.5 -3.5 | 37 10 -6.2 -8.0 8 250 11000 320 9 5.8 -6.9 | 345 12 3.2 -11.4 9 200 12480 5 13 -1.1 -13.0 | 12 18 -3.8 -17.5 10 150 14270 15 17 -4.4 -16.4 | 19 22 -7.0 -20.9 11 107 16225 60 17 -14.7 -8.5 | 53 22 -17.4 -13.0 12 100 16610 105 44 -42.5 11.4 | 99 46 -45.1 6.9 Wind Parameters Mean winds (0-6000m): 180.3 at 6.9 knts Storm direction: 210.3 at 5.2 knts Shear (0-3000m) pos: 1.6 neg: 0.8 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 61.0 deg Storm rel helicity (0-3000m) pos: 28.1 neg: -4.9 tot: 23.1 m^2/s^2 ave: 7.7 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 3.5 stream: 1.8 10^-3/s Energy-Hel index: 0.30 Bulk Rich Number: 395.02 Bulk Shear: 4.32 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 ------------------------------------------------------------------------------- 500 126 5 77 7| 7.9 0.0 7.9| 17.1 0.0 17.1 34.2 0.93| 9.5 8.9 1000 160 7 116 6| 4.9 0.0 4.9| 28.1 -1.0 27.1 27.1 0.86| 8.1 6.9 1500 164 8 122 6| 3.3 0.9 4.2| 28.1 -3.3 24.7 16.5 0.64| 6.3 4.1 2000 165 7 121 5| 2.5 0.8 3.3| 28.1 -3.9 24.2 12.1 0.60| 4.9 2.9 2500 166 7 120 5| 2.0 0.8 2.8| 28.1 -4.4 23.7 9.5 0.55| 4.0 2.2 3000 167 7 118 5| 1.6 0.8 2.4| 28.1 -4.9 23.1 7.7 0.51| 3.5 1.8 4000 169 7 116 4| 1.4 0.6 2.0| 29.4 -5.1 24.4 6.1 0.54| 2.8 1.5 5000 173 7 122 4| 1.3 0.5 1.7| 31.1 -5.1 26.1 5.2 0.58| 2.5 1.4 6000 180 7 133 4| 1.1 0.4 1.5| 34.5 -5.1 29.5 4.9 0.63| 2.4 1.5 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251013.12.gif