UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041600.upa.cvt Date: 0000Z 16 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 16 APR 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 1010 6 22.8 16.8 69 6.0 18.8 0 0 295.1 297.3 291.6 329.5 12.00 1 1000 91 22.4 16.4 69 6.0 18.4 140 1 295.5 297.7 291.6 329.5 11.81 2 982 249 20.6 15.6 73 5.0 17.3 148 3 295.3 297.3 291.2 328.1 11.42 3 959 454 22.2 4.2 31 18.0 12.2 159 5 298.9 299.9 287.1 314.9 5.39 4 943 600 21.6 1.6 27 20.0 10.9 166 7 299.7 300.6 286.5 313.4 4.55 5 925 767 21.2 3.2 31 18.0 11.3 175 9 301.0 301.9 287.6 316.6 5.21 6 921 804 21.2 4.2 33 17.0 11.6 179 9 301.4 302.4 288.2 318.2 5.61 7 913 880 21.0 12.0 56 9.0 15.3 187 9 301.9 303.7 291.9 330.6 9.69 8 904 965 22.8 -12.2 9 35.0 7.8 197 9 304.6 304.9 285.3 309.9 1.66 9 881 1190 23.6 -19.4 5 43.0 7.0 221 9 307.7 307.9 285.6 310.8 0.93 10 850 1500 21.0 7.0 40 14.0 12.5 255 9 308.1 309.5 291.9 330.8 7.41 11 804 1980 17.4 13.2 76 4.2 14.6 261 11 309.3 311.5 295.7 345.6 11.95 12 789 2141 17.0 10.0 63 7.0 12.5 263 12 310.5 312.4 294.4 340.6 9.82 13 700 3152 10.2 6.7 79 3.5 8.0 275 17 313.8 315.5 294.6 341.2 8.83 14 690 3271 9.2 6.8 85 2.4 7.7 275 17 314.0 315.7 294.8 342.0 9.03 15 653 3726 7.0 3.2 77 3.8 4.8 275 18 316.5 317.9 294.3 339.8 7.40 16 635 3956 6.8 -5.2 42 12.0 0.8 275 18 318.8 319.6 292.3 332.1 4.09 17 598 4447 4.2 -5.8 48 10.0 -0.7 275 19 321.3 322.1 293.0 334.9 4.15 18 562 4949 0.6 -5.4 64 6.0 -2.4 275 20 322.8 323.7 293.7 337.8 4.55 19 510 5723 -2.9 -10.9 54 8.0 -6.4 275 21 327.6 328.3 294.0 338.7 3.27 20 500 5880 -4.1 -11.1 58 7.0 -7.1 275 21 328.0 328.7 294.1 339.2 3.28 21 465 6449 -8.5 -17.5 48 9.0 -11.7 268 24 329.4 329.9 293.5 336.7 2.08 22 416 7304 -15.1 -18.7 74 3.6 -16.3 259 28 331.6 332.0 294.1 339.0 2.10 23 405 7506 -16.3 -25.3 46 9.0 -18.7 256 29 332.6 332.9 293.6 337.0 1.21 24 400 7600 -16.9 -21.9 65 5.0 -18.4 255 29 333.0 333.4 294.0 338.9 1.66 25 399 7619 -16.9 -21.8 66 4.9 -18.4 255 29 333.3 333.6 294.1 339.2 1.67 26 397 7656 -16.9 -30.9 29 14.0 -20.1 256 29 333.7 333.9 293.4 336.5 0.73 27 365 8281 -21.3 -36.3 25 15.0 -24.0 261 31 336.0 336.1 293.8 337.8 0.47 28 358 8423 -22.1 -25.1 77 3.0 -22.9 263 32 336.8 337.1 294.8 341.8 1.39 29 346 8673 -23.5 -28.5 63 5.0 -24.6 265 33 338.2 338.4 294.8 342.1 1.05 30 306 9559 -29.3 -34.2 62 4.9 -30.2 274 36 342.1 342.3 295.4 344.8 0.69 31 300 9700 -30.5 -34.3 69 3.8 -31.2 275 36 342.4 342.5 295.5 345.1 0.70 32 250 10970 -40.5 -43.7 71 3.2 -40.8 275 44 345.9 345.9 296.0 347.1 0.32 33 229 11562 -45.9 -48.9 72 3.0 -46.1 265 50 346.4 346.5 296.0 347.2 0.20 34 222 11768 -47.7 -51.2 67 3.5 -47.9 262 51 346.7 346.8 296.0 347.4 0.15 35 202 12386 -52.3 -58.3 48 6.0 -52.5 251 57 349.0 349.0 296.5 349.3 0.07 36 200 12450 -52.7 -57.7 55 5.0 -52.9 250 58 349.3 349.3 296.5 349.7 0.08 37 165 13660 -62.8 -67.2 55 4.4 -62.9 250 66 352.2 352.2 297.1 352.3 0.03 38 164 13697 -63.1 -67.5 55 4.4 -63.1 250 65 352.3 352.3 297.1 352.4 0.03 39 150 14240 -66.7 -72.7 42 6.0 -66.7 255 54 355.2 355.2 297.7 355.2 0.01 40 140 14653 -70.1 -79.1 26 9.0 -70.1 256 50 356.3 356.3 298.0 356.3 0.01 41 136 14825 -69.9 -79.9 22 10.0 -69.9 256 49 359.6 359.6 298.6 359.6 0.00 42 118 15656 -76.1 -81.1 45 5.0 -76.1 258 41 363.1 363.1 299.3 363.1 0.00 43 106 16270 -79.1 -86.1 31 7.0 -79.1 260 35 368.7 368.7 300.4 368.7 0.00 44 100 16600 -79.9 -86.9 30 7.0 -79.9 280 29 373.4 373.4 301.1 373.4 0.00 TRP 106 16270 -79.1 -86.1 31 7.0 -79.1 260 35 368.7 368.7 300.4 368.7 0.00 WND 165 13660 -62.8 -67.2 55 4.4 -62.9 250 66 352.2 352.2 297.1 352.3 0.03 Sounding variables and indices 1000-500 mb thick: 5789.00 m Freezing level: 553.09 mb = 5081.50 m = 16671.37 ft Wetbulb zero: 614.60 mb = 4222.96 m = 13854.70 ft Precipitable water: 1.51 inches Sfc-500 mean rel hum: 56.12 % Est. max temperature: 35.73 C = 96.31 F Sfc-Lift cond lev (LCL): 924.81 mb = 768.80 m = 2522.28 ft T: 21.20 C 700-500 lapse rate: 5.24 C/km ThetaE index: 20.69 C Layer 904.0- 881.0 mb Conv cond level (CCL): 579.58 mb = 4699.72 m = 15418.85 ft Mean mixing ratio: 7.88 g/kg Conv temperature: 49.82 C = 121.67 F Cap Strength: 11.67 C Lifted Index: 11.52 C Risk: None Lifted Index @300 mb: 15.42 C Lifted Index @700 mb: 9.18 C Showalter Index: 6.78 C Risk: None Total Totals Index: 36.20 C Risk: None Vertical Totals Index: 25.10 C Cross Totals Index: 11.10 C K Index: 28.60 Risk: 40-60 % chance of thunderstorms Sweat Index: 123.00 Risk: None Energy Index: 1.72 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.87 J/kg Max Up Vert Vel: 7.98 m/s Conv Inhibition (B-): 9373.67 J/kg Cap Strength: 11.54 C Lift Cond Lev (LCL): 803.53 mb = 1984.57 m = 6510.99 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 298 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 1010 6 0 0 -0.0 -0.0 | 118 11 -9.6 5.1 1 1000 91 140 1 -0.6 0.8 | 120 12 -10.2 5.8 2 925 767 175 9 -0.8 9.0 | 143 17 -10.4 14.0 3 850 1500 255 9 8.7 2.3 | 173 7 -0.9 7.4 4 700 3152 275 17 16.9 -1.5 | 244 8 7.3 3.6 5 500 5880 275 21 20.9 -1.8 | 254 12 11.3 3.2 6 400 7600 255 29 28.0 7.5 | 236 22 18.4 12.6 7 300 9700 275 36 35.9 -3.1 | 266 26 26.3 1.9 8 250 10970 275 44 43.8 -3.8 | 268 34 34.2 1.2 9 200 12450 250 58 54.5 19.8 | 241 51 44.9 24.9 10 165 13660 250 66 62.0 22.6 | 242 59 52.4 27.6 11 150 14240 255 54 52.2 14.0 | 246 47 42.6 19.0 12 106 16270 260 35 34.5 6.1 | 246 27 24.9 11.1 13 100 16600 280 29 28.6 -5.0 | 270 19 19.0 0.0 Wind Parameters Mean winds (0-6000m): 267.8 at 14.5 knts Storm direction: 297.8 at 10.9 knts Shear (0-3000m) pos: 2.8 neg: 0.0 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 120.3 deg Storm rel helicity (0-3000m) pos: 67.7 neg: 0.0 tot: 67.7 m^2/s^2 ave: 22.6 10^-3 m/s^2 rel: 0.72 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.98 Bulk Shear: 32.68 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 ------------------------------------------------------------------------------- 500 158 3 126 13| 6.1 0.0 6.1| 13.1 0.0 13.1 26.1 0.59| 6.3 3.7 1000 178 6 137 14| 4.6 0.0 4.6| 40.1 0.0 40.1 40.1 0.73| 7.0 5.1 1500 198 7 147 14| 3.1 0.0 3.1| 52.1 0.0 52.1 34.7 0.62| 7.6 4.7 2000 220 8 157 12| 2.9 0.0 2.9| 57.1 0.0 57.1 28.5 0.66| 6.3 4.2 2500 236 9 166 10| 2.9 0.0 2.9| 62.2 0.0 62.2 24.9 0.69| 5.6 3.9 3000 248 10 176 9| 2.8 0.0 2.8| 67.7 0.0 67.7 22.6 0.72| 5.2 3.7 4000 260 12 194 7| 2.3 0.1 2.3| 70.9 0.0 70.9 17.7 0.72| 4.2 3.0 5000 265 13 209 7| 1.8 0.2 2.0| 72.5 0.0 72.5 14.5 0.70| 3.5 2.5 6000 268 14 221 7| 1.5 0.4 1.9| 73.8 -0.8 73.0 12.2 0.67| 3.1 2.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250416.00.gif