UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122112.upa.cvt Date: 1200Z 21 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 21 DEC 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 1016 6 24.6 17.6 65 7.0 19.9 155 1 296.4 298.7 292.4 332.6 12.56 1 1000 143 24.0 17.0 65 7.0 19.3 160 3 297.1 299.4 292.4 332.7 12.28 2 925 819 18.2 14.5 79 3.7 15.8 145 5 297.9 300.0 291.9 330.7 11.29 3 869 1351 13.8 11.9 88 1.9 12.6 145 9 298.7 300.5 291.2 328.3 10.12 4 850 1538 13.0 10.0 82 3.0 11.2 145 11 299.8 301.4 290.7 326.5 9.11 5 832 1718 12.2 5.2 62 7.0 8.3 159 11 300.8 302.0 288.9 320.6 6.68 6 726 2843 3.2 2.2 93 1.0 2.7 247 14 302.9 304.0 289.2 321.5 6.19 7 720 2911 5.4 -6.6 42 12.0 0.1 252 14 306.0 306.6 287.5 316.1 3.24 8 706 3072 6.8 -23.2 10 30.0 -2.7 265 15 309.3 309.4 286.1 312.1 0.84 9 700 3142 6.8 -24.2 9 31.0 -2.9 270 15 310.0 310.2 286.2 312.6 0.77 10 682 3355 6.0 -27.0 7 33.0 -3.7 272 16 311.4 311.6 286.6 313.6 0.61 11 592 4504 2.2 -29.8 7 32.0 -6.7 285 19 319.9 320.0 289.3 321.8 0.54 12 510 5686 -7.3 -36.3 8 29.0 -13.4 298 23 322.3 322.4 289.8 323.6 0.34 13 504 5778 -6.7 -44.7 3 38.0 -13.5 299 23 324.1 324.2 290.2 324.7 0.14 14 500 5840 -6.9 -43.9 3 37.0 -13.6 300 23 324.6 324.7 290.3 325.2 0.16 15 445 6741 -11.7 -53.7 2 42.0 -17.4 316 32 329.6 329.6 291.6 329.8 0.06 16 436 6897 -11.7 -54.7 1 43.0 -17.5 318 33 331.5 331.5 292.2 331.7 0.05 17 400 7550 -17.5 -53.5 3 36.0 -21.8 330 40 332.2 332.3 292.4 332.5 0.07 18 300 9630 -34.9 -60.9 5 26.0 -36.3 325 60 336.2 336.2 293.4 336.3 0.04 19 283 10032 -38.3 -61.3 7 23.0 -39.4 328 64 337.0 337.0 293.6 337.1 0.04 20 250 10870 -43.9 -65.9 7 22.0 -44.6 335 73 340.8 340.8 294.6 340.9 0.02 21 212 11963 -51.7 -72.1 7 20.4 -52.0 320 79 345.2 345.2 295.6 345.2 0.01 22 203 12244 -53.7 -73.7 7 20.0 -54.0 316 78 346.3 346.3 295.8 346.3 0.01 23 200 12340 -54.1 -71.1 11 17.0 -54.4 315 77 347.1 347.1 296.0 347.2 0.01 24 198 12404 -53.9 -69.9 12 16.0 -54.2 314 76 348.4 348.4 296.3 348.5 0.02 25 184 12873 -54.7 -76.7 5 22.0 -55.0 306 70 354.5 354.5 297.6 354.5 0.01 26 150 14150 -63.7 -80.7 8 17.0 -63.8 285 54 360.3 360.3 298.8 360.4 0.00 27 119 15543 -71.3 -87.3 8 16.0 -71.3 276 42 371.0 371.0 300.8 371.0 0.00 28 115 15745 -70.7 -88.7 5 18.0 -70.8 275 40 375.8 375.8 301.6 375.8 0.00 29 100 16560 -77.3 -88.3 16 11.0 -77.3 270 33 378.4 378.4 302.0 378.4 0.00 TRP WND 212 11963 -51.7 -72.1 7 20.4 -52.0 320 79 345.2 345.2 295.6 345.2 0.01 Sounding variables and indices 1000-500 mb thick: 5697.00 m Freezing level: 573.01 mb = 4777.78 m = 15674.94 ft Wetbulb zero: 719.60 mb = 2915.19 m = 9564.14 ft Precipitable water: 1.14 inches Sfc-500 mean rel hum: 41.55 % Est. max temperature: 27.08 C = 80.75 F Sfc-Lift cond lev (LCL): 917.07 mb = 892.35 m = 2927.62 ft T: 17.59 C 700-500 lapse rate: 5.08 C/km ThetaE index: 12.06 C Layer 925.0- 726.0 mb Conv cond level (CCL): 876.11 mb = 1281.86 m = 4205.51 ft Mean mixing ratio: 11.82 g/kg Conv temperature: 26.82 C = 80.27 F Cap Strength: 4.58 C Lifted Index: 3.51 C Risk: None Lifted Index @300 mb: 4.28 C Lifted Index @700 mb: 1.86 C Showalter Index: 6.03 C Risk: None Total Totals Index: 36.80 C Risk: None Vertical Totals Index: 19.90 C Cross Totals Index: 16.90 C K Index: -1.10 Risk: None Sweat Index: 165.00 Risk: None Energy Index: -0.11 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 67.18 J/kg Max Up Vert Vel: 11.59 m/s Conv Inhibition (B-): 15.17 J/kg Cap Strength: 4.53 C Lift Cond Lev (LCL): 890.99 mb = 1138.26 m = 3734.41 ft Lev Free Conv (LFC): 815.99 mb = 1878.21 m = 6162.03 ft Equ Level (EL): 705.99 mb = 3071.86 m = 10078.15 ft B at Equ Level: 62.06 J/kg Max Parcel Lev (MPL): 645.99 mb = 3795.58 m = 12452.53 ft Wind level data Storm motion: 304 at 11 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 1016 6 155 1 -0.4 0.9 | 126 12 -9.3 6.9 1 1000 143 160 3 -1.0 2.8 | 132 13 -9.9 8.8 2 925 819 145 5 -2.9 4.1 | 131 15 -11.8 10.1 3 850 1538 145 11 -6.3 9.0 | 135 21 -15.2 15.0 4 700 3142 270 15 15.0 -0.0 | 226 9 6.1 6.0 5 500 5840 300 23 19.9 -11.5 | 297 12 11.0 -5.5 6 400 7550 330 40 20.0 -34.6 | 339 31 11.1 -28.7 7 300 9630 325 60 34.4 -49.1 | 329 50 25.5 -43.2 8 250 10870 335 73 30.9 -66.2 | 340 64 22.0 -60.2 9 212 11963 320 79 50.8 -60.5 | 322 69 41.9 -54.5 10 200 12340 315 77 54.4 -54.4 | 317 67 45.6 -48.5 11 150 14150 285 54 52.2 -14.0 | 280 44 43.3 -8.0 12 100 16560 270 33 33.0 -0.0 | 256 25 24.1 6.0 Wind Parameters Mean winds (0-6000m): 273.9 at 14.3 knts Storm direction: 303.9 at 10.7 knts Shear (0-3000m) pos: 3.7 neg: 1.7 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 86.0 deg Storm rel helicity (0-3000m) pos: 114.9 neg: -1.1 tot: 113.9 m^2/s^2 ave: 38.0 10^-3 m/s^2 rel: 0.69 Storm rel vorticity (0-3000m) horiz: 6.2 stream: 4.3 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 1.99 Bulk Shear: 33.76 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 ------------------------------------------------------------------------------- 500 156 3 131 13| 0.0 3.2 3.2| 3.8 -0.2 3.6 7.2 0.35| 3.3 1.1 1000 150 4 131 14| 0.0 2.9 2.9| 5.3 -1.1 4.2 4.2 0.21| 3.0 0.6 1500 147 6 132 16| 0.0 3.3 3.3| 9.5 -1.1 8.4 5.6 0.21| 3.4 0.7 2000 153 7 136 17| 1.9 2.5 4.4| 50.2 -1.1 49.1 24.5 0.54| 4.5 2.4 2500 168 8 143 18| 3.1 2.0 5.1| 88.2 -1.1 87.1 34.8 0.66| 5.4 3.6 3000 185 9 152 17| 3.7 1.7 5.3|114.9 -1.1 113.9 38.0 0.69| 6.2 4.3 4000 229 11 177 13| 3.4 1.3 4.6|128.9 -1.1 127.8 31.9 0.73| 5.5 4.0 5000 257 13 201 9| 3.1 1.0 4.1|140.3 -1.1 139.2 27.8 0.75| 4.8 3.6 6000 274 14 227 7| 3.0 0.8 3.8|156.2 -1.1 155.1 25.9 0.76| 4.6 3.5 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251221.12.gif