UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101200.upa.cvt Date: 0000Z 12 OCT 25 Searching for VI399... Searching the city database file for: VI399 ... Date:0000Z 12 OCT 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 998 83 25.2 24.0 93 1.2 24.3 0 0 298.5 302.0 297.5 354.3 19.15 1 925 743 22.0 18.1 79 3.9 19.3 95 4 301.8 304.4 295.3 343.9 14.27 2 850 1474 18.0 13.9 77 4.1 15.3 70 3 305.0 307.2 294.4 340.4 11.83 3 700 3112 9.0 1.0 57 8.0 4.6 275 5 312.5 313.6 291.9 330.9 5.89 4 500 5810 -6.5 -54.5 1 48.0 -13.6 265 29 325.1 325.1 290.3 325.3 0.05 5 400 7530 -13.7 -58.7 1 45.0 -19.2 250 30 337.2 337.2 293.7 337.3 0.03 6 300 9650 -29.5 -69.5 1 40.0 -31.9 255 34 343.8 343.8 295.3 343.8 0.01 7 250 10920 -38.5 -75.5 1 37.0 -39.8 255 34 348.8 348.8 296.4 348.8 0.01 8 200 12420 -49.5 -82.5 1 33.0 -50.0 260 27 354.4 354.4 297.5 354.4 0.00 9 150 14240 -63.3 -92.3 1 29.0 -63.4 270 29 361.0 361.0 298.9 361.0 0.00 10 100 16650 -76.3 -101.3 1 25.0 -76.3 300 12 380.3 380.3 302.3 380.3 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5727.24 m Freezing level: 583.87 mb = 4678.58 m = 15349.49 ft Wetbulb zero: 648.98 mb = 3718.84 m = 12200.76 ft Precipitable water: 1.63 inches Sfc-500 mean rel hum: 51.96 % Est. max temperature: 31.77 C = 89.18 F Sfc-Lift cond lev (LCL): 981.17 mb = 230.61 m = 756.57 ft T: 24.48 C 700-500 lapse rate: 5.74 C/km ThetaE index: 29.05 C Layer 925.0- 400.0 mb Conv cond level (CCL): 862.45 mb = 1348.28 m = 4423.45 ft Mean mixing ratio: 15.90 g/kg Conv temperature: 31.13 C = 88.03 F Cap Strength: 1.63 C Lifted Index: -2.65 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 0.25 C Lifted Index @700 mb: -0.92 C Showalter Index: 0.16 C Risk: Thunderstorms probable Total Totals Index: 44.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.50 C Cross Totals Index: 20.40 C K Index: 30.40 Risk: 60-80 % chance of thunderstorms Sweat Index: 201.80 Risk: None Energy Index: -2.83 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 291.70 J/kg Max Up Vert Vel: 24.15 m/s Conv Inhibition (B-): 41.41 J/kg Cap Strength: 1.63 C Lift Cond Lev (LCL): 909.33 mb = 890.70 m = 2922.21 ft Lev Free Conv (LFC): 774.33 mb = 2260.60 m = 7416.57 ft Equ Level (EL): 404.33 mb = 7446.99 m = 24432.10 ft B at Equ Level: 289.11 J/kg Max Parcel Lev (MPL): 204.33 mb = 12275.99 m = 40275.08 ft Wind level data Storm motion: 299 at 7 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 ---------------------------------------------------------- 0 998 83 0 0 -0.0 -0.0 | 119 7 -6.5 3.5 1 973 305 80 3 -3.0 -0.5 | 108 10 -9.4 3.0 2 939 610 85 4 -4.0 -0.3 | 107 11 -10.5 3.2 3 925 743 95 4 -4.0 0.3 | 110 11 -10.5 3.9 4 907 914 100 3 -3.0 0.5 | 113 10 -9.4 4.1 5 875 1219 90 3 -3.0 0.0 | 110 10 -9.5 3.5 6 850 1474 70 3 -2.8 -1.0 | 105 10 -9.3 2.5 7 815 1829 70 2 -1.9 -0.7 | 109 9 -8.4 2.9 8 786 2134 315 2 1.4 -1.4 | 113 5 -5.1 2.1 9 758 2438 290 6 5.6 -2.1 | 150 2 -0.8 1.5 10 731 2743 290 7 6.6 -2.4 | 185 1 0.1 1.1 11 705 3048 285 6 5.8 -1.6 | 161 2 -0.7 2.0 12 700 3112 275 5 5.0 -0.4 | 154 3 -1.5 3.1 13 654 3658 285 7 6.8 -1.8 | 189 2 0.3 1.7 14 630 3962 285 9 8.7 -2.3 | 241 3 2.2 1.2 15 606 4267 280 9 8.9 -1.6 | 230 3 2.4 2.0 16 583 4572 265 8 8.0 0.7 | 199 4 1.5 4.2 17 562 4877 255 17 16.4 4.4 | 231 13 9.9 7.9 18 521 5486 260 29 28.6 5.0 | 249 24 22.1 8.6 19 500 5810 265 29 28.9 2.5 | 255 23 22.4 6.1 20 482 6096 265 31 30.9 2.7 | 256 25 24.4 6.2 21 400 7530 250 30 28.2 10.3 | 238 26 21.7 13.8 22 395 7620 255 30 29.0 7.8 | 243 25 22.5 11.3 23 321 9144 255 35 33.8 9.1 | 245 30 27.3 12.6 24 300 9650 255 34 32.8 8.8 | 245 29 26.4 12.3 25 259 10668 250 36 33.8 12.3 | 240 32 27.3 15.8 26 250 10920 255 34 32.8 8.8 | 245 29 26.4 12.3 27 207 12192 265 29 28.9 2.5 | 255 23 22.4 6.1 28 200 12420 260 27 26.6 4.7 | 248 22 20.1 8.2 29 163 13716 255 28 27.0 7.2 | 242 23 20.6 10.8 30 150 14240 270 29 29.0 -0.0 | 261 23 22.5 3.5 31 127 15240 280 22 21.7 -3.8 | 271 15 15.2 -0.3 32 100 16650 300 12 10.4 -6.0 | 302 5 3.9 -2.5 33 73 18288 260 6 5.9 1.0 | 173 5 -0.6 4.6 34 41 21336 60 12 -10.4 -6.0 | 82 17 -16.9 -2.5 35 23 24384 95 12 -12.0 1.0 | 104 19 -18.4 4.6 36 13 27432 110 12 -11.3 4.1 | 113 19 -17.8 7.6 Wind Parameters Mean winds (0-6000m): 268.6 at 9.8 knts Storm direction: 298.6 at 7.4 knts Shear (0-3000m) pos: 0.5 neg: 1.4 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 38.7 deg Storm rel helicity (0-3000m) pos: 7.5 neg: -9.0 tot: -1.5 m^2/s^2 ave: -0.5 10^-3 m/s^2 rel: 0.02 Storm rel vorticity (0-3000m) horiz: 3.3 stream: 0.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 14.31 Bulk Shear: 20.39 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 82 3 109 10| 4.0 0.0 4.0| 0.3 -3.5 -3.1 -6.3 -0.34| 4.7 -1.6 1000 89 3 110 10| 1.5 0.0 1.5| 3.5 -4.0 -0.5 -0.5 -0.10| 3.3 -0.3 1500 86 3 109 10| 1.0 0.4 1.5| 3.9 -7.0 -3.0 -2.0 -0.20| 2.7 -0.6 2000 81 3 109 10| 0.8 1.1 1.9| 5.6 -8.6 -3.0 -1.5 -0.13| 3.1 -0.4 2500 62 3 103 9| 0.6 1.9 2.6| 7.3 -8.6 -1.3 -0.5 0.05| 3.5 0.2 3000 359 4 88 6| 0.5 1.4 2.0| 7.5 -9.0 -1.5 -0.5 0.02| 3.3 0.1 4000 301 5 115 3| 0.2 1.4 1.6| 9.2 -9.1 0.1 0.0 0.14| 3.1 0.4 5000 279 6 170 3| 0.2 2.4 2.6| 23.1 -11.1 12.0 2.4 0.17| 4.1 0.7 6000 269 10 222 5| 0.8 2.0 2.7| 58.1 -11.1 47.0 7.8 0.25| 4.5 1.1 Wrote GIF file: /home/apache/climate/data/raob//VI399/skewt/VI399.skewt.20251012.00.gif