UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122700.upa.cvt Date: 0000Z 27 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:0000Z 27 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 1011 19 24.8 22.4 87 2.4 23.1 340 1 297.0 300.1 295.8 346.5 17.11 1 1000 98 23.6 21.8 90 1.8 22.3 50 3 296.8 299.8 295.5 344.9 16.66 2 947 574 20.8 19.4 92 1.4 19.8 15 3 298.6 301.3 295.0 342.6 15.14 3 929 741 20.6 19.8 95 0.8 20.1 3 3 300.0 302.9 295.8 346.4 15.84 4 925 778 20.8 19.6 93 1.2 19.9 360 3 300.6 303.5 295.9 346.7 15.71 5 850 1508 18.2 14.9 81 3.3 16.0 65 3 305.2 307.6 295.0 343.0 12.64 6 821 1806 17.2 11.2 68 6.0 13.3 72 3 307.2 309.1 293.9 338.1 10.23 7 769 2362 13.0 12.2 95 0.8 12.5 86 3 308.5 310.7 295.3 343.9 11.70 8 710 3034 12.4 5.4 62 7.0 8.2 102 3 314.9 316.5 294.3 339.8 7.95 9 700 3153 11.8 3.8 58 8.0 7.1 105 3 315.6 316.9 293.9 338.2 7.20 10 698 3177 11.6 2.6 54 9.0 6.4 105 3 315.6 316.9 293.4 336.5 6.63 11 594 4502 2.0 -2.0 75 4.0 -0.1 78 3 319.3 320.4 293.6 337.3 5.57 12 567 4877 0.8 -5.2 64 6.0 -2.1 71 3 322.2 323.1 293.6 337.2 4.58 13 556 5034 0.6 -8.4 51 9.0 -3.6 67 3 323.8 324.5 293.3 335.9 3.65 14 546 5180 0.2 -18.8 22 19.0 -6.7 64 3 325.0 325.3 291.9 330.5 1.59 15 541 5253 -0.3 -11.3 43 11.0 -5.1 63 3 325.3 325.8 293.2 335.3 2.98 16 500 5880 -3.9 -20.9 25 17.0 -9.6 50 3 328.3 328.6 292.6 333.4 1.45 17 497 5928 -3.9 -25.9 16 22.0 -10.5 52 3 328.8 329.0 292.3 332.2 0.93 18 483 6152 -5.9 -16.9 41 11.0 -10.0 59 4 329.1 329.5 293.4 336.4 2.11 19 478 6234 -5.5 -26.5 17 21.0 -11.6 62 4 330.6 330.7 292.7 333.9 0.92 20 461 6517 -7.3 -43.3 4 36.0 -14.2 72 5 331.8 331.8 292.4 332.5 0.18 21 440 6880 -8.9 -30.9 15 22.0 -14.5 84 6 334.2 334.3 293.5 336.7 0.66 22 412 7385 -13.3 -22.3 47 9.0 -16.1 102 8 334.9 335.2 294.4 340.4 1.55 23 405 7516 -13.7 -42.7 7 29.0 -18.8 107 9 336.0 336.0 293.5 336.8 0.22 24 400 7610 -14.5 -35.5 15 21.0 -18.9 110 9 336.1 336.2 293.8 337.9 0.46 25 385 7899 -16.7 -38.7 13 22.0 -20.8 117 8 336.9 337.0 293.9 338.3 0.35 26 378 8037 -17.5 -27.5 41 10.0 -20.1 120 8 337.7 337.9 294.7 341.6 1.06 27 322 9220 -25.5 -45.5 14 20.0 -28.0 148 6 342.4 342.5 295.1 343.3 0.20 28 300 9730 -29.5 -37.5 46 8.0 -30.7 160 5 343.8 343.9 295.7 345.8 0.51 29 289 9995 -31.3 -38.3 50 7.0 -32.3 166 6 344.9 345.0 295.9 346.8 0.48 30 271 10445 -35.3 -39.8 63 4.5 -35.8 177 8 345.5 345.6 296.0 347.3 0.44 31 250 11000 -39.7 -48.7 38 9.0 -40.4 190 11 347.0 347.1 296.1 347.8 0.18 32 209 12195 -49.7 -65.7 14 16.0 -50.1 198 11 349.6 349.6 296.5 349.8 0.03 33 200 12480 -52.5 -60.5 37 8.0 -52.7 200 11 349.6 349.6 296.6 349.9 0.06 34 189 12843 -56.1 -61.1 53 5.0 -56.2 194 15 349.5 349.5 296.6 349.8 0.05 35 181 13118 -57.9 -68.9 23 11.0 -58.0 190 18 351.0 351.0 296.8 351.0 0.02 36 168 13585 -61.1 -75.1 14 14.0 -61.2 182 23 353.2 353.2 297.3 353.2 0.01 37 150 14280 -67.3 -74.3 36 7.0 -67.4 170 31 354.2 354.2 297.5 354.2 0.01 38 142 14608 -70.1 -74.7 51 4.6 -70.1 167 37 354.9 354.9 297.7 354.9 0.01 39 118 15683 -79.2 -85.1 38 5.8 -79.3 155 58 357.3 357.3 298.2 357.3 0.00 40 115 15829 -80.5 -86.5 36 6.0 -80.5 149 52 357.6 357.6 298.2 357.6 0.00 41 100 16610 -83.9 -88.9 41 5.0 -83.9 115 19 365.6 365.6 299.8 365.6 0.00 TRP WND 118 15683 -79.2 -85.1 38 5.8 -79.3 155 58 357.3 357.3 298.2 357.3 0.00 Sounding variables and indices 1000-500 mb thick: 5782.00 m Freezing level: 544.00 mb = 5209.22 m = 17090.42 ft Wetbulb zero: 595.56 mb = 4480.56 m = 14699.82 ft Precipitable water: 2.02 inches Sfc-500 mean rel hum: 69.67 % Est. max temperature: 32.31 C = 90.15 F Sfc-Lift cond lev (LCL): 976.63 mb = 304.61 m = 999.35 ft T: 22.38 C 700-500 lapse rate: 5.76 C/km ThetaE index: 8.55 C Layer 850.0- 769.0 mb Conv cond level (CCL): 862.30 mb = 1383.92 m = 4540.37 ft Mean mixing ratio: 15.85 g/kg Conv temperature: 32.22 C = 90.00 F Cap Strength: 2.77 C Lifted Index: 1.06 C Risk: Showers probable Lifted Index @300 mb: 1.89 C Lifted Index @700 mb: 2.73 C Showalter Index: 1.71 C Risk: Showers probable Total Totals Index: 40.90 C Risk: None Vertical Totals Index: 22.10 C Cross Totals Index: 18.80 C K Index: 29.00 Risk: 40-60 % chance of thunderstorms Sweat Index: 187.80 Risk: None Energy Index: -1.82 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 20.88 J/kg Max Up Vert Vel: 6.46 m/s Conv Inhibition (B-): 182.78 J/kg Cap Strength: 2.80 C Lift Cond Lev (LCL): 939.51 mb = 642.72 m = 2108.62 ft Lev Free Conv (LFC): 604.51 mb = 4357.95 m = 14297.58 ft Equ Level (EL): 574.51 mb = 4770.70 m = 15651.71 ft B at Equ Level: 20.70 J/kg Max Parcel Lev (MPL): 524.51 mb = 5499.47 m = 18042.66 ft Wind level data Storm motion: 98 at 2 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 19 340 1 0.3 -0.9 | 296 3 2.6 -1.3 1 1000 98 50 3 -2.3 -1.9 | 2 2 -0.1 -2.3 2 925 778 360 3 -0.0 -3.0 | 326 4 2.2 -3.3 3 850 1508 65 3 -2.7 -1.3 | 17 2 -0.5 -1.6 4 700 3153 105 3 -2.9 0.8 | 123 1 -0.7 0.4 5 500 5880 50 3 -2.3 -1.9 | 2 2 -0.1 -2.3 6 400 7610 110 9 -8.5 3.1 | 114 7 -6.2 2.7 7 300 9730 160 5 -1.7 4.7 | 187 4 0.5 4.4 8 250 11000 190 11 1.9 10.8 | 201 11 4.1 10.5 9 200 12480 200 11 3.8 10.3 | 211 12 6.0 10.0 10 150 14280 170 31 -5.4 30.5 | 174 30 -3.2 30.2 11 118 15683 155 58 -24.5 52.6 | 157 57 -22.3 52.2 12 100 16610 115 19 -17.2 8.0 | 117 17 -15.0 7.7 Wind Parameters Mean winds (0-6000m): 68.5 at 3.0 knts Storm direction: 98.5 at 2.2 knts Shear (0-3000m) pos: 0.6 neg: 0.0 tot: 0.6 10-3/s Storm rel Dir Shear (0-3000m): 174.9 deg Storm rel helicity (0-3000m) pos: 3.8 neg: -1.4 tot: 2.3 m^2/s^2 ave: 0.8 10^-3 m/s^2 rel: 0.49 Storm rel vorticity (0-3000m) horiz: 1.8 stream: 0.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 54.37 Bulk Shear: 0.38 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 34 3 347 3| 2.4 0.0 2.4| 1.6 -0.8 0.7 1.5 0.40| 4.6 1.9 1000 22 3 339 3| 1.2 0.0 1.2| 2.3 -1.4 0.8 0.8 0.31| 3.2 1.0 1500 29 3 345 3| 1.1 0.0 1.1| 3.3 -1.4 1.9 1.3 0.41| 2.9 1.2 2000 40 3 353 3| 0.8 0.0 0.8| 3.5 -1.4 2.1 1.0 0.43| 2.4 1.0 2500 50 3 1 2| 0.7 0.0 0.7| 3.6 -1.4 2.2 0.9 0.46| 2.0 0.9 3000 58 3 9 2| 0.6 0.0 0.6| 3.8 -1.4 2.3 0.8 0.49| 1.8 0.9 4000 69 3 22 2| 0.5 0.1 0.6| 3.8 -1.6 2.2 0.5 0.38| 1.5 0.6 5000 71 3 25 1| 0.4 0.2 0.6| 3.8 -1.9 1.9 0.4 0.29| 1.3 0.4 6000 68 3 22 2| 0.3 0.2 0.5| 4.1 -2.2 1.9 0.3 0.25| 1.2 0.3 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251227.00.gif