UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041612.upa.cvt Date: 1200Z 16 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 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 1006 6 26.6 12.6 42 14.0 17.7 135 3 299.2 300.9 290.6 326.0 9.14 1 1000 56 26.0 13.0 45 13.0 17.7 135 7 299.1 300.9 290.8 326.8 9.45 2 956 450 21.8 14.8 64 7.0 17.2 152 15 298.8 300.8 292.0 331.2 11.14 3 939 605 21.0 10.0 49 11.0 14.3 159 18 299.5 301.0 289.9 323.7 8.23 4 931 680 22.4 -6.6 14 29.0 8.9 163 20 301.7 302.1 285.1 309.4 2.50 5 930 689 22.4 -2.6 19 25.0 9.9 163 20 301.7 302.4 286.1 312.1 3.39 6 925 736 22.2 7.2 38 15.0 13.3 165 21 302.0 303.3 289.5 322.6 6.90 7 916 821 21.8 14.8 64 7.0 17.1 173 19 302.4 304.6 293.6 336.9 11.63 8 897 1003 21.2 13.2 60 8.0 16.0 189 16 303.6 305.6 293.2 335.5 10.69 9 871 1259 23.4 15.4 61 8.0 17.9 211 11 308.5 310.9 296.0 347.1 12.74 10 850 1472 22.0 15.0 64 7.0 17.2 230 7 309.2 311.6 296.1 347.8 12.72 11 740 2663 13.6 11.2 85 2.4 12.0 262 23 312.5 314.7 296.1 347.6 11.37 12 700 3131 11.2 4.2 62 7.0 7.1 275 29 314.9 316.3 293.9 338.1 7.41 13 660 3621 9.4 -0.6 50 10.0 3.9 270 29 318.2 319.3 293.3 336.0 5.55 14 645 3813 9.8 -6.2 32 16.0 1.9 268 29 320.8 321.5 292.5 333.0 3.73 15 567 4867 0.4 -4.5 70 4.9 -2.0 256 30 321.7 322.7 293.7 337.5 4.84 16 547 5155 -1.5 -4.8 78 3.3 -3.1 253 30 322.8 323.8 294.0 338.9 4.90 17 532 5376 -2.1 -6.6 71 4.5 -4.3 251 31 324.7 325.5 294.1 339.2 4.39 18 524 5497 -1.1 -15.1 34 14.0 -6.7 249 31 327.3 327.7 293.1 335.0 2.26 19 523 5512 -1.1 -14.1 37 13.0 -6.4 249 31 327.5 327.9 293.3 335.9 2.46 20 500 5870 -4.1 -12.1 54 8.0 -7.5 245 31 328.0 328.6 293.9 338.3 3.02 21 496 5933 -4.7 -10.7 63 6.0 -7.3 246 31 328.1 328.7 294.2 339.6 3.41 22 476 6255 -6.7 -11.2 70 4.5 -8.7 249 32 329.5 330.2 294.6 341.1 3.42 23 464 6453 -7.3 -17.3 45 10.0 -11.0 252 32 331.1 331.6 294.0 338.6 2.12 24 443 6812 -9.9 -13.1 77 3.2 -11.2 256 33 332.3 332.9 295.1 343.1 3.15 25 416 7293 -13.1 -19.1 61 6.0 -15.2 261 34 334.2 334.6 294.7 341.4 2.03 26 413 7348 -13.3 -24.3 39 11.0 -16.5 262 34 334.6 334.9 294.1 339.3 1.30 27 400 7590 -14.5 -28.5 29 14.0 -18.1 265 35 336.1 336.3 294.2 339.5 0.91 28 398 7628 -14.5 -28.5 29 14.0 -18.1 265 35 336.6 336.8 294.3 340.0 0.92 29 395 7685 -14.5 -31.5 22 17.0 -18.5 264 35 337.4 337.5 294.3 340.0 0.69 30 376 8057 -17.7 -28.7 38 11.0 -20.4 262 36 337.9 338.1 294.7 341.4 0.95 31 355 8485 -21.1 -36.1 25 15.0 -23.9 259 37 338.9 339.0 294.5 340.8 0.49 32 342 8760 -23.1 -33.1 40 10.0 -25.1 257 38 339.9 340.0 294.9 342.5 0.69 33 334 8933 -22.7 -31.7 44 9.0 -24.6 256 38 342.7 342.9 295.7 345.8 0.81 34 302 9663 -29.7 -32.3 78 2.6 -30.2 250 40 342.9 343.0 295.7 346.1 0.84 35 300 9710 -30.1 -33.0 76 2.9 -30.6 250 40 343.0 343.1 295.7 346.0 0.79 36 250 10980 -40.1 -42.8 75 2.7 -40.4 265 52 346.4 346.5 296.1 347.9 0.35 37 249 11007 -40.3 -42.9 76 2.6 -40.5 265 52 346.5 346.6 296.2 347.9 0.35 38 234 11427 -43.7 -52.7 36 9.0 -44.2 261 56 347.6 347.6 296.2 348.1 0.12 39 215 11989 -48.5 -51.5 71 3.0 -48.7 255 60 348.7 348.7 296.5 349.3 0.15 40 209 12174 -49.7 -58.7 34 9.0 -50.0 253 62 349.6 349.7 296.6 349.9 0.07 41 200 12460 -51.9 -60.9 33 9.0 -52.2 250 64 350.6 350.6 296.8 350.8 0.05 42 195 12624 -53.1 -67.1 17 14.0 -53.4 250 66 351.2 351.2 296.9 351.3 0.02 43 185 12962 -55.5 -69.1 17 13.6 -55.8 250 69 352.6 352.6 297.2 352.7 0.02 44 150 14270 -65.3 -77.3 17 12.0 -65.4 270 62 357.6 357.6 298.2 357.6 0.01 45 137 14815 -70.7 -78.7 30 8.0 -70.8 274 56 357.5 357.5 298.2 357.5 0.01 46 118 15691 -74.7 -84.7 20 10.0 -74.7 282 47 365.7 365.7 299.8 365.7 0.00 47 111 16048 -73.7 -84.7 17 11.0 -73.7 285 43 374.0 374.0 301.2 374.0 0.00 48 100 16650 -78.7 -87.7 22 9.0 -78.7 290 36 375.7 375.7 301.5 375.7 0.00 TRP WND 185 12962 -55.5 -69.1 17 13.6 -55.8 250 69 352.6 352.6 297.2 352.7 0.02 Sounding variables and indices 1000-500 mb thick: 5814.00 m Freezing level: 562.79 mb = 4927.44 m = 16165.96 ft Wetbulb zero: 607.35 mb = 4304.51 m = 14122.24 ft Precipitable water: 1.82 inches Sfc-500 mean rel hum: 60.28 % Est. max temperature: 36.37 C = 97.47 F Sfc-Lift cond lev (LCL): 819.41 mb = 1786.92 m = 5862.51 ft T: 19.78 C 700-500 lapse rate: 5.59 C/km ThetaE index: 21.84 C Layer 939.0- 930.0 mb Conv cond level (CCL): 608.59 mb = 4287.88 m = 14067.66 ft Mean mixing ratio: 9.41 g/kg Conv temperature: 48.65 C = 119.57 F Cap Strength: 9.96 C Lifted Index: 8.24 C Risk: None Lifted Index @300 mb: 11.69 C Lifted Index @700 mb: 7.72 C Showalter Index: -0.37 C Risk: Thunderstorms probable Total Totals Index: 45.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.10 C Cross Totals Index: 19.10 C K Index: 34.10 Risk: 60-80 % chance of thunderstorms Sweat Index: 225.00 Risk: None Energy Index: -1.82 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 19.49 J/kg Max Up Vert Vel: 6.24 m/s Conv Inhibition (B-): 7716.42 J/kg Cap Strength: 9.88 C Lift Cond Lev (LCL): 815.56 mb = 1827.40 m = 5995.34 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 282 at 17 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 1006 6 135 3 -2.1 2.1 | 107 20 -18.9 5.7 1 1000 56 135 7 -4.9 4.9 | 111 23 -21.8 8.5 2 925 736 165 21 -5.4 20.3 | 137 33 -22.3 23.8 3 850 1472 230 7 5.4 4.5 | 125 14 -11.5 8.0 4 700 3131 275 29 28.9 -2.5 | 265 12 12.1 1.0 5 500 5870 245 31 28.1 13.1 | 214 20 11.3 16.6 6 400 7590 265 35 34.9 3.1 | 250 19 18.0 6.6 7 300 9710 250 40 37.6 13.7 | 230 27 20.8 17.2 8 250 10980 265 52 51.8 4.5 | 257 36 35.0 8.1 9 200 12460 250 64 60.1 21.9 | 240 50 43.3 25.4 10 185 12962 250 69 64.8 23.6 | 241 55 48.0 27.1 11 150 14270 270 62 62.0 -0.0 | 266 45 45.2 3.5 12 100 16650 290 36 33.8 -12.3 | 297 19 17.0 -8.8 Wind Parameters Mean winds (0-6000m): 251.9 at 22.9 knts Storm direction: 281.9 at 17.2 knts Shear (0-3000m) pos: 5.1 neg: 0.0 tot: 5.1 10-3/s Storm rel Dir Shear (0-3000m): 148.5 deg Storm rel helicity (0-3000m) pos: 189.3 neg: -19.7 tot: 169.6 m^2/s^2 ave: 56.5 10^-3 m/s^2 rel: 0.55 Storm rel vorticity (0-3000m) horiz: 11.0 stream: 6.0 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.19 Bulk Shear: 101.00 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 ------------------------------------------------------------------------------- 500 148 11 120 26| 13.9 0.0 13.9| 64.2 0.0 64.2 128.4 0.66| 14.5 9.6 1000 163 15 130 27| 7.4 0.0 7.4|130.4 0.0 130.4 130.4 0.62| 14.6 9.1 1500 169 14 131 26| 2.9 0.0 2.9|130.5 -19.7 110.8 73.9 0.32| 13.8 4.5 2000 182 13 135 23| 3.9 0.0 3.9|150.6 -19.7 130.8 65.4 0.41| 12.2 5.0 2500 203 14 145 20| 4.6 0.0 4.6|168.9 -19.7 149.2 59.7 0.49| 11.4 5.5 3000 226 15 158 15| 5.1 0.0 5.1|189.3 -19.7 169.6 56.5 0.55| 11.0 6.0 4000 249 19 184 10| 3.8 0.5 4.3|194.1 -34.1 160.1 40.0 0.46| 9.1 4.2 5000 253 21 199 10| 3.0 0.9 4.0|194.1 -54.2 139.9 28.0 0.36| 7.9 2.9 6000 252 23 205 12| 2.5 1.1 3.7|197.7 -73.1 124.6 20.8 0.30| 7.1 2.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250416.12.gif