UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 9 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 23.0 15.0 61 8.0 17.8 160 1 294.6 296.5 290.3 325.0 10.58 1 1000 157 22.4 14.4 61 8.0 17.2 170 3 295.5 297.4 290.4 325.4 10.36 2 925 829 16.2 13.0 81 3.2 14.2 160 5 295.9 297.7 290.4 325.4 10.22 3 869 1357 11.8 10.5 92 1.3 11.0 164 4 296.6 298.3 289.8 323.3 9.21 4 854 1503 11.4 4.4 62 7.0 7.6 165 3 297.7 298.8 287.3 315.8 6.15 5 850 1542 11.2 5.2 67 6.0 7.9 165 3 297.9 299.1 287.8 317.1 6.53 6 780 2251 4.8 3.4 91 1.4 4.1 180 6 298.4 299.6 287.8 316.9 6.27 7 767 2389 7.4 -7.6 34 15.0 1.0 184 6 302.7 303.2 285.8 311.4 2.81 8 765 2411 10.2 -26.8 6 37.0 -0.8 184 6 305.9 306.0 284.5 307.8 0.56 9 750 2576 12.4 -29.6 4 42.0 -0.0 188 7 310.0 310.1 285.9 311.6 0.44 10 712 3012 13.0 -32.0 3 45.0 -0.2 197 8 315.3 315.4 287.6 316.7 0.37 11 700 3155 12.2 -31.8 3 44.0 -0.7 200 9 316.0 316.1 287.9 317.4 0.38 12 619 4175 8.2 211 10 322.7 13 500 5900 -2.9 -28.9 11 26.0 -10.2 230 13 329.5 329.6 292.3 332.1 0.70 14 400 7630 -15.1 -47.1 5 32.0 -20.0 225 17 335.4 335.4 293.3 335.9 0.14 15 381 7995 -17.3 -51.3 3 34.0 -21.7 228 18 337.2 337.2 293.7 337.5 0.09 16 300 9730 -31.1 -57.1 6 26.0 -33.0 240 25 341.5 341.6 294.7 341.8 0.06 17 284 10117 -34.1 -58.1 7 24.0 -35.7 240 24 342.6 342.7 295.0 342.9 0.05 18 262 10678 -38.9 -47.9 38 9.0 -39.6 240 24 343.6 343.6 295.4 344.4 0.19 19 261 10705 -39.1 -48.1 38 9.0 -39.8 240 23 343.7 343.7 295.4 344.4 0.19 20 259 10757 -38.9 -57.9 12 19.0 -39.9 240 23 344.7 344.7 295.5 345.0 0.06 21 250 11000 -40.5 -60.5 10 20.0 -41.5 240 23 345.9 345.9 295.7 346.0 0.04 22 244 11165 -41.5 -64.5 7 23.0 -42.4 240 24 346.8 346.8 296.0 346.9 0.03 23 243 11193 -41.7 -63.7 7 22.0 -42.6 240 24 346.9 346.9 296.0 347.0 0.03 24 213 12071 -49.7 -65.7 14 16.0 -50.1 240 29 347.7 347.8 296.1 347.9 0.03 25 204 12352 -51.7 -57.7 49 6.0 -51.9 240 30 348.9 348.9 296.5 349.2 0.08 26 200 12480 -52.7 -65.7 19 13.0 -53.0 240 31 349.3 349.3 296.5 349.4 0.03 27 176 13290 -60.1 -62.5 73 2.4 -60.2 236 33 350.2 350.2 296.7 350.4 0.05 28 169 13542 -61.5 -71.5 25 10.0 -61.6 234 34 351.9 351.9 297.1 352.0 0.01 29 150 14270 -66.9 -77.9 20 11.0 -67.0 230 36 354.8 354.8 297.7 354.9 0.01 30 135 14900 -70.9 -87.9 6 17.0 -70.9 225 34 358.6 358.6 298.4 358.6 0.00 31 113 15932 -79.1 -86.1 31 7.0 -79.1 216 30 362.0 362.0 299.1 362.0 0.00 32 100 16620 -82.3 -91.3 20 9.0 -82.3 210 27 368.7 368.7 300.4 368.7 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5743.00 m Freezing level: 531.09 mb = 5449.45 m = 17878.57 ft Wetbulb zero: 765.91 mb = 2400.98 m = 7877.14 ft Precipitable water: 0.93 inches Sfc-500 mean rel hum: 58.24 % Est. max temperature: 25.06 C = 77.11 F Sfc-Lift cond lev (LCL): 904.96 mb = 1014.14 m = 3327.18 ft T: 14.66 C 700-500 lapse rate: 5.50 C/km ThetaE index: 9.61 C Layer 925.0- 850.0 mb Conv cond level (CCL): 875.12 mb = 1297.44 m = 4256.63 ft Mean mixing ratio: 10.31 g/kg Conv temperature: 24.91 C = 76.84 F Cap Strength: 11.17 C Lifted Index: 10.62 C Risk: None Lifted Index @300 mb: 12.18 C Lifted Index @700 mb: 9.60 C Showalter Index: 15.13 C Risk: None Total Totals Index: 22.20 C Risk: None Vertical Totals Index: 14.10 C Cross Totals Index: 8.10 C K Index: -24.70 Risk: None Sweat Index: 81.40 Risk: None Energy Index: 3.29 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.53 J/kg Max Up Vert Vel: 7.94 m/s Conv Inhibition (B-): 13.00 J/kg Cap Strength: 11.18 C Lift Cond Lev (LCL): 887.11 mb = 1182.52 m = 3879.61 ft Lev Free Conv (LFC): 832.11 mb = 1717.64 m = 5635.22 ft Equ Level (EL): 762.11 mb = 2442.48 m = 8013.29 ft B at Equ Level: 19.75 J/kg Max Parcel Lev (MPL): 752.11 mb = 2552.77 m = 8375.13 ft Wind level data Storm motion: 237 at 6 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 | 66 6 -5.3 -2.3 1 1000 157 170 3 -0.5 3.0 | 87 5 -5.5 -0.3 2 925 829 160 5 -1.7 4.7 | 102 7 -6.7 1.4 3 850 1542 165 3 -0.8 2.9 | 86 6 -5.7 -0.4 4 700 3155 200 9 3.1 8.5 | 160 6 -1.9 5.2 5 500 5900 230 13 10.0 8.4 | 225 7 5.0 5.1 6 400 7630 225 17 12.0 12.0 | 219 11 7.1 8.8 7 300 9730 240 25 21.7 12.5 | 241 19 16.7 9.2 8 250 11000 240 23 19.9 11.5 | 241 17 15.0 8.2 9 200 12480 240 31 26.8 15.5 | 241 25 21.9 12.2 10 150 14270 230 36 27.6 23.1 | 229 30 22.6 19.9 11 100 16620 210 27 13.5 23.4 | 203 22 8.6 20.1 Wind Parameters Mean winds (0-6000m): 206.5 at 7.9 knts Storm direction: 236.5 at 5.9 knts Shear (0-3000m) pos: 1.3 neg: 0.1 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 86.3 deg Storm rel helicity (0-3000m) pos: 14.5 neg: -2.6 tot: 11.9 m^2/s^2 ave: 4.0 10^-3 m/s^2 rel: 0.68 Storm rel vorticity (0-3000m) horiz: 2.1 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 6.91 Bulk Shear: 4.56 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 ------------------------------------------------------------------------------- 500 167 3 87 6| 3.1 0.0 3.1| 4.4 0.0 4.4 8.8 0.95| 3.2 3.0 1000 163 4 94 6| 1.6 0.3 1.8| 5.5 -0.6 4.9 4.9 0.72| 2.3 1.7 1500 163 4 94 6| 0.6 0.2 0.8| 5.5 -2.6 2.9 1.9 0.34| 2.0 0.7 2000 165 4 94 6| 0.9 0.1 1.0| 8.1 -2.6 5.5 2.8 0.49| 2.0 1.0 2500 170 4 99 6| 1.1 0.1 1.2| 11.2 -2.6 8.6 3.4 0.60| 2.0 1.2 3000 178 5 106 5| 1.3 0.1 1.4| 14.5 -2.6 11.9 4.0 0.68| 2.1 1.4 4000 189 6 122 5| 1.2 0.1 1.3| 18.5 -2.6 15.9 4.0 0.74| 1.9 1.4 5000 198 7 139 4| 1.2 0.1 1.2| 22.4 -2.6 19.8 4.0 0.77| 1.8 1.4 6000 207 8 160 4| 1.1 0.0 1.2| 26.4 -2.6 23.8 4.0 0.78| 1.7 1.3 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251209.12.gif