UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 4 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 1018 6 23.2 15.2 61 8.0 18.0 160 1 294.8 296.8 290.5 325.6 10.72 1 1000 162 21.6 14.6 64 7.0 17.1 85 3 294.8 296.6 290.2 324.9 10.50 2 933 760 16.2 14.7 91 1.5 15.3 134 7 295.1 297.2 291.0 327.7 11.34 3 925 833 15.8 14.5 92 1.3 15.0 140 7 295.5 297.5 291.1 327.9 11.29 4 850 1549 12.0 11.5 97 0.5 11.7 210 9 298.7 300.6 291.2 328.1 10.08 5 822 1829 10.2 10.2 100 0.0 10.2 222 11 299.7 301.4 291.0 327.7 9.55 6 821 1839 10.2 10.2 100 0.0 10.2 223 11 299.8 301.5 291.1 327.9 9.56 7 798 2075 10.2 10.2 100 0.0 10.2 233 12 302.2 304.1 292.1 331.4 9.84 8 791 2149 10.8 8.1 83 2.7 9.2 236 13 303.6 305.2 291.5 329.3 8.60 9 788 2180 10.6 3.6 62 7.0 6.7 237 13 303.8 304.9 289.6 322.8 6.30 10 786 2202 11.4 -5.6 30 17.0 3.5 238 13 304.8 305.4 287.0 314.8 3.20 11 776 2309 13.6 -8.4 21 22.0 3.7 243 14 308.3 308.8 287.6 316.6 2.61 12 732 2799 11.6 -11.4 19 23.0 1.8 264 17 311.3 311.7 288.2 318.4 2.18 13 716 2984 13.4 -26.6 5 40.0 0.4 272 18 315.3 315.4 287.9 317.4 0.61 14 710 3055 13.0 -22.0 7 35.0 0.5 275 18 315.6 315.8 288.3 318.8 0.92 15 706 3103 12.2 0.2 44 12.0 5.6 277 19 315.2 316.3 292.4 332.7 5.50 16 700 3174 11.8 -1.2 40 13.0 4.8 280 19 315.6 316.5 292.1 331.5 5.01 17 697 3210 11.6 -5.4 30 17.0 3.2 280 19 315.7 316.4 291.0 327.5 3.67 18 617 4211 2.0 -2.3 73 4.3 -0.2 278 21 315.9 316.9 292.4 332.6 5.24 19 609 4316 3.2 -15.8 23 19.0 -4.1 278 21 318.5 318.8 290.2 324.6 1.83 20 601 4424 3.6 -24.4 11 28.0 -5.3 278 21 320.1 320.3 289.8 323.2 0.88 21 500 5890 -6.3 -35.3 8 29.0 -12.8 275 23 325.4 325.4 290.8 326.8 0.38 22 489 6063 -7.9 -35.9 9 28.0 -13.9 273 24 325.5 325.5 290.8 326.8 0.36 23 485 6127 -7.5 -40.5 5 33.0 -14.0 272 24 326.7 326.8 291.0 327.6 0.23 24 457 6586 -10.7 -41.7 6 31.0 -16.3 265 27 328.3 328.4 291.5 329.2 0.22 25 454 6637 -10.3 -25.3 28 15.0 -14.6 264 27 329.5 329.7 292.6 333.3 1.08 26 449 6722 -10.5 -41.5 6 31.0 -16.3 263 28 330.2 330.3 292.0 331.1 0.22 27 416 7304 -14.3 -24.3 42 10.0 -17.1 254 31 332.6 332.9 293.6 337.3 1.29 28 406 7488 -15.3 -29.3 29 14.0 -18.7 252 32 333.7 333.8 293.5 336.7 0.83 29 403 7544 -14.9 -41.9 8 27.0 -19.6 251 33 334.9 335.0 293.3 335.8 0.24 30 400 7600 -15.3 -41.3 9 26.0 -19.8 250 33 335.1 335.2 293.3 336.1 0.26 31 390 7791 -17.3 -32.3 26 15.0 -20.5 251 33 334.9 335.1 293.7 337.4 0.65 32 357 8449 -22.9 -40.9 18 18.0 -25.6 254 34 336.0 336.0 293.6 337.1 0.30 33 301 9686 -29.7 -55.7 6 26.0 -31.9 260 36 343.2 343.2 295.1 343.5 0.07 34 300 9710 -29.9 -54.9 7 25.0 -32.0 260 36 343.2 343.3 295.1 343.5 0.07 35 277 10272 -35.1 -57.1 9 22.0 -36.5 256 37 343.7 343.7 295.3 343.9 0.06 36 271 10425 -35.5 -61.5 5 26.0 -37.0 254 37 345.2 345.2 295.6 345.4 0.04 37 250 10980 -40.5 -65.5 5 25.0 -41.5 250 38 345.9 345.9 295.7 346.0 0.02 38 247 11062 -41.1 -65.1 6 24.0 -42.1 249 39 346.2 346.2 295.8 346.3 0.02 39 200 12460 -51.7 -71.7 7 20.0 -52.1 240 50 350.9 350.9 296.8 351.0 0.01 40 152 14180 -65.7 -79.7 13 14.0 -65.8 259 56 355.6 355.6 297.8 355.6 0.00 41 150 14260 -65.7 -81.7 9 16.0 -65.8 260 56 356.9 356.9 298.1 356.9 0.00 42 123 15440 -74.3 -85.3 17 11.0 -74.3 243 39 362.1 362.1 299.1 362.1 0.00 43 100 16630 -79.5 -91.5 12 12.0 -79.5 225 21 374.1 374.1 301.3 374.1 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5728.00 m Freezing level: 564.27 mb = 4956.86 m = 16262.47 ft Wetbulb zero: 621.97 mb = 4145.04 m = 13599.05 ft Precipitable water: 1.26 inches Sfc-500 mean rel hum: 47.86 % Est. max temperature: 26.29 C = 79.32 F Sfc-Lift cond lev (LCL): 905.01 mb = 1017.97 m = 3339.74 ft T: 14.82 C 700-500 lapse rate: 6.66 C/km ThetaE index: 16.62 C Layer 791.0- 776.0 mb Conv cond level (CCL): 870.51 mb = 1347.13 m = 4419.66 ft Mean mixing ratio: 10.92 g/kg Conv temperature: 26.18 C = 79.12 F Cap Strength: 9.45 C Lifted Index: 6.69 C Risk: None Lifted Index @300 mb: 12.74 C Lifted Index @700 mb: 8.79 C Showalter Index: 5.81 C Risk: None Total Totals Index: 36.10 C Risk: None Vertical Totals Index: 18.30 C Cross Totals Index: 17.80 C K Index: 16.80 Risk: < 20 % chance of thunderstorms Sweat Index: 179.00 Risk: None Energy Index: -0.08 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.13 J/kg Max Up Vert Vel: 2.06 m/s Conv Inhibition (B-): 7196.05 J/kg Cap Strength: 9.30 C Lift Cond Lev (LCL): 906.88 mb = 1000.55 m = 3282.59 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 298 at 12 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 1018 6 160 1 -0.3 0.9 | 121 12 -10.6 6.4 1 1000 162 85 3 -3.0 -0.3 | 112 14 -13.2 5.2 2 925 833 140 7 -4.5 5.4 | 126 18 -14.7 10.9 3 850 1549 210 9 4.5 7.8 | 157 14 -5.7 13.3 4 700 3174 280 19 18.7 -3.3 | 256 9 8.5 2.2 5 500 5890 275 23 22.9 -2.0 | 255 13 12.7 3.5 6 400 7600 250 33 31.0 11.3 | 231 27 20.8 16.8 7 300 9710 260 36 35.5 6.3 | 245 28 25.2 11.7 8 250 10980 250 38 35.7 13.0 | 234 31 25.5 18.5 9 200 12460 240 50 43.3 25.0 | 227 45 33.1 30.5 10 150 14260 260 56 55.1 9.7 | 251 47 44.9 15.2 11 100 16630 225 21 14.8 14.8 | 193 21 4.6 20.3 Wind Parameters Mean winds (0-6000m): 268.3 at 15.5 knts Storm direction: 298.3 at 11.6 knts Shear (0-3000m) pos: 3.9 neg: 0.8 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 117.8 deg Storm rel helicity (0-3000m) pos: 110.4 neg: -8.2 tot: 102.2 m^2/s^2 ave: 34.1 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 4.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.05 Bulk Shear: 46.60 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 ------------------------------------------------------------------------------- 500 103 3 115 15| 0.0 4.6 4.6| 5.6 -8.2 -2.7 -5.3 -0.16| 5.9 -1.0 1000 130 5 122 16| 2.7 2.3 4.9| 29.8 -8.2 21.6 21.6 0.37| 5.9 2.2 1500 155 6 131 17| 3.6 1.5 5.1| 57.8 -8.2 49.5 33.0 0.57| 6.3 3.6 2000 181 7 141 16| 3.8 1.1 4.9| 75.8 -8.2 67.5 33.8 0.65| 6.1 4.0 2500 206 8 153 15| 3.9 0.9 4.8| 93.2 -8.2 85.0 34.0 0.70| 6.1 4.3 3000 230 10 167 12| 3.9 0.8 4.7|110.4 -8.2 102.2 34.1 0.75| 6.3 4.7 4000 256 12 190 8| 3.1 0.5 3.6|116.4 -8.2 108.2 27.0 0.74| 5.2 3.9 5000 265 14 208 8| 2.5 0.3 2.8|116.4 -8.4 108.0 21.6 0.71| 4.3 3.1 6000 268 15 221 8| 2.1 0.2 2.3|116.4 -10.3 106.1 17.7 0.66| 3.8 2.5 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251204.12.gif