UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025123100.upa.cvt Date: 0000Z 31 DEC 25 Searching for VI399... Searching the city database file for: VI399 ... Date:0000Z 31 DEC 25 Station: VI399 WMO ident: 42399 Latitude: 26.53 Longitude: 88.72 ------------------------------------------------------------------------------- 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 1003 76 13.6 12.8 95 0.8 13.1 270 2 286.5 288.1 286.1 312.3 9.29 1 1000 101 13.0 11.0 88 2.0 11.9 295 6 286.1 287.6 285.0 309.1 8.26 2 925 755 10.6 9.2 91 1.4 9.8 75 9 290.1 291.5 286.2 312.6 7.91 3 850 1460 9.8 5.7 76 4.1 7.5 65 10 296.4 297.6 287.5 316.2 6.77 4 700 3052 1.4 -5.6 60 7.0 -1.7 295 10 304.0 304.7 287.1 315.1 3.60 5 500 5710 -13.9 -37.9 11 24.0 -18.0 290 32 316.1 316.1 287.8 317.2 0.29 6 400 7350 -26.3 -57.3 4 31.0 -28.6 290 51 320.8 320.8 289.0 321.0 0.04 7 300 9400 -33.5 -72.5 1 39.0 -35.2 295 105 338.2 338.2 293.9 338.2 0.01 8 250 10670 -36.3 -74.3 1 38.0 -37.8 295 129 352.1 352.1 297.1 352.1 0.01 9 240 10952 -38.6 -75.9 1 37.3 -39.9 295 131 352.8 352.8 297.3 352.8 0.01 10 200 12180 -48.9 -82.9 1 34.0 -49.4 295 120 355.3 355.3 297.8 355.3 0.00 11 150 14020 -61.5 -91.5 1 30.0 -61.7 295 97 364.1 364.1 299.5 364.1 0.00 12 100 16430 -76.7 -101.7 1 25.0 -76.7 285 78 379.5 379.5 302.2 379.5 0.00 TRP 100 16430 -76.7 -101.7 1 25.0 -76.7 285 78 379.5 379.5 302.2 379.5 0.00 WND 240 10952 -38.6 -75.9 1 37.3 -39.9 295 131 352.8 352.8 297.3 352.8 0.01 Sounding variables and indices 1000-500 mb thick: 5609.00 m Freezing level: 681.70 mb = 3295.22 m = 10810.94 ft Wetbulb zero: 727.38 mb = 2737.34 m = 8980.66 ft Precipitable water: 0.94 inches Sfc-500 mean rel hum: 56.48 % Est. max temperature: 23.25 C = 73.85 F Sfc-Lift cond lev (LCL): 991.20 mb = 175.14 m = 574.59 ft T: 12.73 C 700-500 lapse rate: 5.76 C/km ThetaE index: 3.19 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 802.54 mb = 1931.12 m = 6335.60 ft Mean mixing ratio: 8.03 g/kg Conv temperature: 25.78 C = 78.41 F Cap Strength: 4.84 C Lifted Index: 7.55 C Risk: None Lifted Index @300 mb: 19.24 C Lifted Index @700 mb: 4.84 C Showalter Index: 4.65 C Risk: None Total Totals Index: 43.30 C Risk: None Vertical Totals Index: 23.70 C Cross Totals Index: 19.60 C K Index: 22.40 Risk: 20-40 % chance of thunderstorms Sweat Index: 120.40 Risk: None Energy Index: 0.34 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.11 J/kg Max Up Vert Vel: 5.85 m/s Conv Inhibition (B-): 11084.93 J/kg Cap Strength: 7.38 C Lift Cond Lev (LCL): 927.48 mb = 732.51 m = 2403.22 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 331 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 1003 76 270 2 2.0 -0.0 | 160 12 -4.1 10.9 1 1000 101 295 6 5.4 -2.5 | 176 8 -0.6 8.3 2 976 305 325 7 4.0 -5.7 | 158 6 -2.0 5.1 3 941 610 40 5 -3.2 -3.8 | 127 12 -9.3 7.0 4 925 755 75 9 -8.7 -2.3 | 120 17 -14.7 8.5 5 907 914 85 13 -13.0 -1.1 | 117 21 -19.0 9.7 6 875 1219 85 15 -14.9 -1.3 | 114 23 -21.0 9.6 7 850 1460 65 10 -9.1 -4.2 | 114 17 -15.1 6.6 8 813 1829 55 8 -6.6 -4.6 | 116 14 -12.6 6.3 9 783 2134 90 10 -10.0 0.0 | 124 19 -16.1 10.9 10 754 2438 110 9 -8.5 3.1 | 134 20 -14.5 13.9 11 727 2743 115 5 -4.5 2.1 | 141 17 -10.6 13.0 12 700 3048 300 6 5.2 -3.0 | 174 8 -0.9 7.9 13 700 3052 295 10 9.1 -4.2 | 204 7 3.0 6.6 14 648 3658 290 31 29.1 -10.6 | 269 23 23.1 0.3 15 624 3962 290 27 25.4 -9.2 | 265 19 19.3 1.6 16 600 4267 295 20 18.1 -8.5 | 259 12 12.1 2.4 17 577 4572 290 18 16.9 -6.2 | 247 12 10.9 4.7 18 556 4877 290 18 16.9 -6.2 | 247 12 10.9 4.7 19 514 5486 290 28 26.3 -9.6 | 266 20 20.3 1.3 20 500 5710 290 32 30.1 -10.9 | 270 24 24.0 -0.1 21 474 6096 285 31 29.9 -8.0 | 263 24 23.9 2.8 22 400 7350 290 51 47.9 -17.4 | 279 42 41.9 -6.6 23 385 7620 290 53 49.8 -18.1 | 279 44 43.8 -7.3 24 311 9144 295 84 76.1 -35.5 | 289 74 70.1 -24.6 25 300 9400 295 105 95.2 -44.4 | 291 95 89.1 -33.5 26 250 10668 290 126 118.4 -43.1 | 286 117 112.4 -32.2 27 250 10670 295 129 116.9 -54.5 | 291 119 110.9 -43.7 28 240 10952 295 131 118.7 -55.4 | 292 121 112.7 -44.5 29 200 12180 295 120 108.8 -50.7 | 291 110 102.7 -39.8 30 200 12192 295 122 110.6 -51.6 | 291 112 104.5 -40.7 31 157 13716 295 100 90.6 -42.3 | 290 90 84.6 -31.4 32 150 14020 295 97 87.9 -41.0 | 290 87 81.9 -30.1 33 122 15240 285 88 85.0 -22.8 | 279 80 79.0 -11.9 34 100 16430 285 78 75.3 -20.2 | 278 70 69.3 -9.3 35 69 18288 285 30 29.0 -7.8 | 262 23 22.9 3.1 36 37 21336 20 14 -4.8 -13.2 | 78 11 -10.8 -2.3 37 20 24384 35 20 -11.5 -16.4 | 73 18 -17.5 -5.5 38 11 27432 85 3 -3.0 -0.3 | 140 14 -9.0 10.6 Wind Parameters Mean winds (0-6000m): 300.9 at 16.6 knts Storm direction: 330.9 at 12.4 knts Shear (0-3000m) pos: 2.7 neg: 4.2 tot: 6.9 10-3/s Storm rel Dir Shear (0-3000m): 51.3 deg Storm rel helicity (0-3000m) pos: 64.6 neg: -41.0 tot: 23.6 m^2/s^2 ave: 7.9 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 11.7 stream: 1.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.94 Bulk Shear: 18.11 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 ------------------------------------------------------------------------------- 500 331 6 150 6| 6.7 0.0 6.7| 5.0 -8.9 -3.8 -7.7 -0.22| 14.9 -3.2 1000 48 8 114 13| 8.3 0.0 8.3| 5.0 -21.1 -16.1 -16.1 -0.23| 13.5 -3.1 1500 64 10 114 16| 5.5 2.3 7.8| 7.0 -27.5 -20.5 -13.6 -0.19| 11.7 -2.3 2000 64 9 115 16| 4.5 1.7 6.2| 16.4 -27.5 -11.1 -5.6 -0.11| 10.3 -1.1 2500 73 9 118 17| 3.2 1.4 4.6| 42.6 -27.5 15.1 6.1 0.01| 9.5 0.1 3000 74 9 120 17| 2.7 4.2 6.9| 64.6 -41.0 23.6 7.9 0.13| 11.7 1.6 4000 341 13 59 2| 2.5 5.4 7.9| 99.6 -51.0 48.6 12.1 0.19| 12.2 2.4 5000 312 14 252 5| 2.0 4.0 6.0|106.6 -64.0 42.6 8.5 0.16| 10.8 1.7 6000 301 17 254 9| 1.7 4.2 5.8|128.4 -80.3 48.1 8.0 0.16| 10.2 1.6 Wrote GIF file: /home/apache/climate/data/raob//VI399/skewt/VI399.skewt.20251231.00.gif