UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122312.upa.cvt Date: 1200Z 23 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 23 DEC 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 1009 19 27.4 22.7 76 4.7 24.0 155 3 299.8 303.0 296.8 350.9 17.47 1 1000 80 26.8 22.2 76 4.6 23.5 165 7 300.0 303.1 296.6 350.0 17.09 2 969 358 24.2 21.8 86 2.4 22.5 203 7 300.0 303.2 296.7 350.5 17.21 3 932 700 23.8 20.4 81 3.4 21.3 251 7 303.0 306.0 297.0 351.6 16.40 4 925 766 23.4 20.3 83 3.1 21.2 260 7 303.2 306.3 297.1 352.0 16.42 5 896 1044 21.0 19.5 91 1.5 19.9 303 7 303.5 306.5 297.0 351.4 16.13 6 850 1501 18.8 15.5 81 3.3 16.5 15 7 305.8 308.3 295.6 345.2 13.14 7 717 2943 11.0 3.0 58 8.0 6.5 63 12 312.5 313.8 292.6 333.2 6.64 8 700 3143 9.4 4.4 71 5.0 6.5 70 13 312.9 314.3 293.4 336.3 7.51 9 669 3518 6.4 6.3 99 0.1 6.3 75 14 313.6 315.3 294.7 341.6 8.99 10 661 3617 7.8 4.4 79 3.4 5.8 76 14 316.3 317.8 294.6 341.3 7.96 11 652 3730 7.4 2.4 71 5.0 4.5 77 15 317.1 318.4 294.1 339.2 7.00 12 578 4714 1.2 0.5 95 0.7 0.8 90 18 320.9 322.3 295.1 343.1 6.89 13 512 5683 -4.1 -5.1 93 1.0 -4.6 103 20 325.8 326.8 295.0 342.7 5.12 14 500 5870 -4.7 -7.5 81 2.8 -6.0 105 21 327.3 328.2 294.8 341.9 4.36 15 494 5965 -5.5 -8.3 81 2.8 -6.8 102 21 327.5 328.3 294.6 341.3 4.14 16 491 6012 -4.9 -13.9 49 9.0 -8.5 101 21 328.8 329.3 293.8 337.9 2.66 17 484 6125 -5.9 -14.9 49 9.0 -9.4 97 22 328.9 329.4 293.7 337.4 2.48 18 482 6157 -4.3 -27.3 15 23.0 -11.0 96 22 331.3 331.4 292.9 334.3 0.84 19 476 6255 -4.3 -42.3 3 38.0 -12.2 93 22 332.4 332.5 292.6 333.2 0.19 20 446 6764 -6.7 -42.7 4 36.0 -13.9 77 23 335.7 335.7 293.4 336.5 0.20 21 400 7600 -14.3 -40.3 9 26.0 -19.1 50 25 336.4 336.5 293.7 337.5 0.28 22 372 8146 -19.1 -46.1 7 27.0 -22.9 61 19 337.1 337.1 293.7 337.7 0.16 23 329 9051 -24.3 -59.3 2 35.0 -27.5 81 10 342.0 342.0 294.8 342.2 0.04 24 303 9648 -26.9 -46.9 13 20.0 -29.3 93 4 346.5 346.5 296.0 347.2 0.18 25 300 9720 -27.7 -48.7 12 21.0 -30.0 95 3 346.3 346.4 296.0 347.0 0.15 26 250 11000 -38.5 -56.5 13 18.0 -39.6 120 5 348.8 348.8 296.4 349.1 0.07 27 240 11279 -41.1 -57.1 16 16.0 -41.9 127 8 349.0 349.0 296.5 349.3 0.07 28 217 11955 -47.7 -53.7 50 6.0 -48.0 145 15 349.0 349.0 296.5 349.5 0.12 29 213 12078 -48.5 -52.3 65 3.8 -48.7 149 16 349.6 349.6 296.7 350.2 0.14 30 211 12140 -48.9 -62.9 18 14.0 -49.3 150 17 349.9 349.9 296.7 350.1 0.04 31 209 12203 -49.3 -66.3 12 17.0 -49.7 152 18 350.3 350.3 296.7 350.4 0.02 32 203 12393 -50.9 -54.9 62 4.0 -51.1 157 20 350.7 350.7 296.9 351.1 0.11 33 200 12490 -51.7 -59.7 38 8.0 -52.0 160 21 350.9 350.9 296.9 351.2 0.06 34 198 12555 -51.9 -67.9 13 16.0 -52.2 161 21 351.6 351.6 297.0 351.7 0.02 35 192 12753 -53.7 -73.7 7 20.0 -54.0 162 19 351.8 351.8 297.0 351.9 0.01 36 184 13025 -56.1 -68.1 21 12.0 -56.3 164 17 352.2 352.2 297.1 352.3 0.02 37 181 13129 -57.1 -63.1 46 6.0 -57.2 165 16 352.3 352.3 297.1 352.4 0.04 38 177 13270 -58.1 -71.1 17 13.0 -58.3 166 15 352.9 352.9 297.3 352.9 0.01 39 150 14290 -66.9 -73.9 37 7.0 -67.0 175 7 354.8 354.8 297.7 354.9 0.01 40 139 14744 -71.1 -75.2 54 4.1 -71.1 181 6 355.3 355.3 297.8 355.3 0.01 41 134 14959 -72.3 -79.3 34 7.0 -72.3 183 5 356.9 356.9 298.1 356.9 0.01 42 108 16194 -82.1 -86.5 47 4.4 -82.1 199 2 361.1 361.1 298.9 361.1 0.00 43 100 16620 -84.9 -88.3 54 3.4 -84.9 205 1 363.7 363.7 299.4 363.7 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5790.00 m Freezing level: 563.06 mb = 4933.07 m = 16184.43 ft Wetbulb zero: 568.43 mb = 4847.09 m = 15902.33 ft Precipitable water: 2.15 inches Sfc-500 mean rel hum: 81.41 % Est. max temperature: 33.01 C = 91.42 F Sfc-Lift cond lev (LCL): 942.67 mb = 599.90 m = 1968.14 ft T: 23.92 C 700-500 lapse rate: 5.17 C/km ThetaE index: 18.75 C Layer 896.0- 700.0 mb Conv cond level (CCL): 868.69 mb = 1312.55 m = 4306.20 ft Mean mixing ratio: 16.84 g/kg Conv temperature: 32.52 C = 90.54 F Cap Strength: 1.96 C Lifted Index: -2.08 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 0.14 C Lifted Index @700 mb: -1.46 C Showalter Index: 0.03 C Risk: Thunderstorms probable Total Totals Index: 43.70 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 20.20 C K Index: 34.00 Risk: 60-80 % chance of thunderstorms Sweat Index: 221.00 Risk: None Energy Index: -0.72 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 410.94 J/kg Max Up Vert Vel: 28.67 m/s Conv Inhibition (B-): 46.19 J/kg Cap Strength: 1.96 C Lift Cond Lev (LCL): 914.38 mb = 866.87 m = 2844.03 ft Lev Free Conv (LFC): 779.38 mb = 2236.05 m = 7336.02 ft Equ Level (EL): 469.38 mb = 6364.87 m = 20881.85 ft B at Equ Level: 241.58 J/kg Max Parcel Lev (MPL): 119.38 mb = 15620.30 m = 51247.09 ft Wind level data Storm motion: 114 at 10 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 1009 19 155 3 -1.3 2.7 | 279 8 7.5 -1.2 1 1000 80 165 7 -1.8 6.8 | 248 8 7.0 2.9 2 925 766 260 7 6.9 1.2 | 280 16 15.7 -2.7 3 850 1501 15 7 -1.8 -6.8 | 327 13 7.0 -10.7 4 700 3143 70 13 -12.2 -4.4 | 22 9 -3.4 -8.3 5 500 5870 105 21 -20.3 5.4 | 98 12 -11.5 1.5 6 400 7600 50 25 -19.2 -16.1 | 27 22 -10.4 -20.0 7 300 9720 95 3 -3.0 0.3 | 302 7 5.8 -3.6 8 250 11000 120 5 -4.3 2.5 | 287 5 4.4 -1.4 9 200 12490 160 21 -7.2 19.7 | 186 16 1.6 15.8 10 150 14290 175 7 -0.6 7.0 | 249 9 8.2 3.1 11 100 16620 205 1 0.4 0.9 | 288 10 9.2 -3.0 Wind Parameters Mean winds (0-6000m): 83.9 at 12.8 knts Storm direction: 113.9 at 9.6 knts Shear (0-3000m) pos: 2.2 neg: 0.0 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 97.6 deg Storm rel helicity (0-3000m) pos: 107.4 neg: -8.3 tot: 99.0 m^2/s^2 ave: 33.0 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 6.8 stream: 4.4 10^-3/s Energy-Hel index: 0.23 Bulk Rich Number: 11.97 Bulk Shear: 34.34 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 ------------------------------------------------------------------------------- 500 191 7 255 10| 6.8 0.0 6.8| 10.7 -8.3 2.4 4.8 -0.06| 11.3 -0.7 1000 229 7 267 14| 4.9 0.0 4.9| 45.5 -8.3 37.2 37.2 0.38| 10.3 3.9 1500 255 7 278 16| 3.3 0.0 3.3| 78.5 -8.3 70.2 46.8 0.54| 10.0 5.4 2000 324 7 307 16| 2.8 0.0 2.8| 88.1 -8.3 79.7 39.9 0.58| 8.3 4.8 2500 14 8 329 13| 2.4 0.0 2.4| 97.8 -8.3 89.5 35.8 0.62| 7.3 4.5 3000 40 8 342 11| 2.2 0.0 2.2|107.4 -8.3 99.0 33.0 0.65| 6.8 4.4 4000 60 10 358 9| 1.9 0.0 1.9|118.8 -8.3 110.4 27.6 0.68| 5.7 3.9 5000 73 11 15 7| 1.8 0.0 1.8|130.6 -8.3 122.3 24.5 0.71| 5.1 3.6 6000 84 13 37 7| 1.6 0.1 1.7|141.8 -12.8 129.0 21.5 0.68| 4.7 3.2 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251223.12.gif