UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122412.upa.cvt Date: 1200Z 24 DEC 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 24 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 1012 6 24.0 20.4 80 3.6 21.5 120 3 296.1 298.9 294.2 339.5 15.07 1 1000 112 22.8 20.1 85 2.7 20.9 115 9 296.0 298.6 294.1 339.0 14.97 2 971 368 20.2 19.6 96 0.6 19.8 132 12 295.8 298.5 294.0 338.8 14.95 3 925 788 18.6 16.0 85 2.6 16.9 160 17 298.3 300.6 292.9 334.5 12.46 4 881 1206 16.6 13.6 82 3.0 14.7 183 12 300.4 302.5 292.6 333.3 11.18 5 850 1511 14.8 12.6 87 2.2 13.4 200 9 301.6 303.6 292.7 333.7 10.85 6 796 2064 10.8 10.1 95 0.7 10.4 234 13 303.1 304.9 292.3 332.2 9.80 7 746 2604 8.4 5.0 79 3.4 6.5 267 17 306.2 307.5 291.3 328.4 7.35 8 700 3127 4.2 2.8 91 1.4 3.4 300 21 307.1 308.4 291.0 327.6 6.70 9 679 3374 2.4 1.0 90 1.4 1.7 298 23 307.8 308.9 290.7 326.4 6.07 10 670 3482 4.6 -8.4 38 13.0 -1.1 297 24 311.5 312.0 289.1 321.1 3.03 11 667 3519 7.4 -28.6 6 36.0 -3.2 296 24 315.0 315.1 287.7 316.9 0.54 12 664 3556 8.6 -38.4 2 47.0 -3.1 296 24 316.8 316.8 287.9 317.5 0.21 13 644 3809 9.8 -37.2 2 47.0 -2.7 294 26 320.9 320.9 289.3 321.8 0.24 14 500 5860 -3.5 -43.5 3 40.0 -11.5 275 42 328.8 328.8 291.5 329.4 0.16 15 427 7085 -12.9 -52.9 2 40.0 -18.3 271 41 332.0 332.0 292.3 332.2 0.07 16 400 7580 -15.7 -53.7 2 38.0 -20.5 270 40 334.6 334.6 293.0 334.8 0.06 17 370 8165 -18.3 -44.3 8 26.0 -22.3 271 42 338.7 338.7 294.2 339.5 0.20 18 323 9161 -26.9 -47.9 12 21.0 -29.2 274 44 340.2 340.2 294.5 340.8 0.16 19 313 9387 -27.9 -50.9 9 23.0 -30.2 274 45 341.9 341.9 294.9 342.4 0.11 20 300 9690 -30.5 -52.5 10 22.0 -32.4 275 46 342.4 342.4 295.0 342.8 0.10 21 270 10425 -36.9 -54.9 14 18.0 -38.1 269 48 343.6 343.6 295.3 343.9 0.08 22 251 10923 -40.9 -53.9 23 13.0 -41.6 265 50 344.9 344.9 295.6 345.3 0.10 23 250 10950 -41.3 -55.3 21 14.0 -42.1 265 50 344.7 344.7 295.5 345.0 0.08 24 246 11059 -42.1 -62.1 10 20.0 -42.9 266 50 345.1 345.1 295.6 345.2 0.04 25 206 12230 -52.5 -56.0 66 3.5 -52.6 274 55 346.7 346.7 296.0 347.1 0.09 26 200 12420 -53.9 -58.9 54 5.0 -54.1 275 56 347.4 347.4 296.1 347.7 0.07 27 195 12582 -55.3 -61.3 47 6.0 -55.5 275 57 347.7 347.7 296.2 347.9 0.05 28 176 13229 -61.1 -64.9 61 3.8 -61.2 275 61 348.5 348.5 296.3 348.7 0.04 29 169 13480 -62.9 -71.9 29 9.0 -63.0 275 63 349.6 349.6 296.5 349.7 0.01 30 158 13894 -64.6 -75.3 22 10.7 -64.7 275 66 353.5 353.5 297.4 353.6 0.01 31 156 13971 -64.9 -75.9 21 11.0 -65.0 274 66 354.3 354.3 297.5 354.3 0.01 32 150 14210 -66.7 -77.7 20 11.0 -66.8 270 64 355.2 355.2 297.7 355.2 0.01 33 128 15153 -74.5 -82.5 28 8.0 -74.5 266 52 357.6 357.6 298.2 357.6 0.00 34 108 16138 -76.5 -88.5 13 12.0 -76.5 262 39 371.7 371.7 300.8 371.7 0.00 35 100 16580 -77.9 -90.9 10 13.0 -77.9 260 33 377.2 377.2 301.8 377.2 0.00 TRP WND 158 13894 -64.6 -75.3 22 10.7 -64.7 275 66 353.5 353.5 297.4 353.6 0.01 Sounding variables and indices 1000-500 mb thick: 5748.00 m Freezing level: 537.89 mb = 5320.37 m = 17455.08 ft Wetbulb zero: 673.57 mb = 3439.08 m = 11282.94 ft Precipitable water: 1.45 inches Sfc-500 mean rel hum: 51.91 % Est. max temperature: 29.06 C = 84.30 F Sfc-Lift cond lev (LCL): 960.30 mb = 464.18 m = 1522.87 ft T: 19.83 C 700-500 lapse rate: 2.82 C/km ThetaE index: 16.77 C Layer 796.0- 664.0 mb Conv cond level (CCL): 897.16 mb = 1050.09 m = 3445.12 ft Mean mixing ratio: 14.01 g/kg Conv temperature: 27.53 C = 81.56 F Cap Strength: 6.44 C Lifted Index: 4.39 C Risk: None Lifted Index @300 mb: 5.16 C Lifted Index @700 mb: -2.62 C Showalter Index: 6.03 C Risk: None Total Totals Index: 34.40 C Risk: None Vertical Totals Index: 18.30 C Cross Totals Index: 16.10 C K Index: 29.50 Risk: 40-60 % chance of thunderstorms Sweat Index: 211.20 Risk: None Energy Index: -0.66 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 100.92 J/kg Max Up Vert Vel: 14.21 m/s Conv Inhibition (B-): 21.66 J/kg Cap Strength: 6.30 C Lift Cond Lev (LCL): 934.94 mb = 695.59 m = 2282.11 ft Lev Free Conv (LFC): 829.94 mb = 1712.10 m = 5617.06 ft Equ Level (EL): 669.94 mb = 3483.00 m = 11427.02 ft B at Equ Level: 97.59 J/kg Max Parcel Lev (MPL): 629.94 mb = 3988.28 m = 13084.75 ft Wind level data Storm motion: 304 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 1012 6 120 3 -2.6 1.5 | 123 20 -16.8 11.0 1 1000 112 115 9 -8.2 3.8 | 121 26 -22.3 13.3 2 925 788 160 17 -5.8 16.0 | 142 32 -20.0 25.5 3 850 1511 200 9 3.1 8.5 | 148 21 -11.1 17.9 4 700 3127 300 21 18.2 -10.5 | 284 4 4.0 -1.0 5 500 5860 275 42 41.8 -3.7 | 258 28 27.7 5.8 6 400 7580 270 40 40.0 -0.0 | 250 28 25.8 9.5 7 300 9690 275 46 45.8 -4.0 | 260 32 31.7 5.5 8 250 10950 265 50 49.8 4.4 | 249 38 35.6 13.8 9 200 12420 275 56 55.8 -4.9 | 264 42 41.6 4.6 10 158 13894 275 66 65.7 -5.8 | 266 52 51.6 3.7 11 150 14210 270 64 64.0 -0.0 | 259 51 49.8 9.5 12 100 16580 260 33 32.5 5.7 | 230 24 18.3 15.2 Wind Parameters Mean winds (0-6000m): 273.8 at 22.7 knts Storm direction: 303.8 at 17.0 knts Shear (0-3000m) pos: 4.0 neg: 0.0 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 124.7 deg Storm rel helicity (0-3000m) pos: 187.1 neg: -6.7 tot: 180.4 m^2/s^2 ave: 60.1 10^-3 m/s^2 rel: 0.58 Storm rel vorticity (0-3000m) horiz: 9.8 stream: 5.7 10^-3/s Energy-Hel index: 0.09 Bulk Rich Number: 0.76 Bulk Shear: 132.27 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 ------------------------------------------------------------------------------- 500 129 10 126 27| 11.2 0.0 11.2| 39.7 -5.4 34.3 68.5 0.34| 13.3 4.5 1000 149 13 135 29| 6.7 0.0 6.7|104.5 -5.4 99.0 99.0 0.53| 11.7 6.3 1500 158 13 138 28| 3.1 0.0 3.1|114.3 -6.7 107.6 71.7 0.43| 10.6 4.6 2000 171 12 143 27| 3.6 0.0 3.6|146.2 -6.7 139.6 69.8 0.52| 9.7 5.0 2500 189 13 151 25| 3.9 0.0 3.9|171.4 -6.7 164.8 65.9 0.56| 9.5 5.3 3000 212 14 162 22| 4.0 0.0 4.0|187.1 -6.7 180.4 60.1 0.58| 9.8 5.7 4000 260 16 187 12| 3.5 0.6 4.0|190.2 -9.4 180.8 45.2 0.52| 8.6 4.5 5000 273 19 210 10| 2.8 1.4 4.2|190.2 -20.2 170.0 34.0 0.42| 7.8 3.3 6000 274 23 227 12| 2.3 1.9 4.2|190.2 -42.9 147.2 24.5 0.34| 7.3 2.5 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251224.12.gif