UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100800.upa.cvt Date: 0000Z 8 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 8 OCT 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 1014 6 25.0 24.0 94 1.0 24.3 350 1 297.0 300.4 297.0 351.5 18.84 1 1000 127 24.0 23.2 95 0.8 23.5 360 3 297.1 300.4 296.6 349.8 18.19 2 947 605 23.2 20.0 82 3.2 20.9 73 11 301.0 303.9 296.0 347.2 15.73 3 925 810 21.4 19.5 89 1.9 20.1 105 15 301.2 304.1 296.0 347.1 15.61 4 850 1541 18.2 15.9 86 2.3 16.7 115 5 305.2 307.7 295.6 345.5 13.49 5 746 2650 11.6 10.2 91 1.4 10.7 139 10 309.6 311.6 294.7 341.8 10.54 6 720 2947 10.8 6.0 72 4.8 7.9 145 12 311.9 313.5 293.6 337.2 8.17 7 700 3182 9.4 6.4 82 3.0 7.6 150 13 312.9 314.5 294.3 339.7 8.65 8 574 4802 -0.3 -1.4 92 1.1 -0.9 132 8 319.8 321.0 294.1 339.2 6.03 9 517 5636 -3.7 -5.5 87 1.8 -4.6 123 6 325.4 326.4 294.7 341.7 4.92 10 500 5900 -5.1 -6.6 89 1.5 -5.8 120 5 326.8 327.8 294.9 342.4 4.67 11 446 6788 -10.3 -10.3 100 0.0 -10.3 143 6 331.1 331.9 295.4 344.5 3.92 12 436 6963 -10.3 -11.9 88 1.6 -11.0 148 6 333.3 334.0 295.6 345.4 3.53 13 400 7620 -14.9 -16.3 89 1.4 -15.4 165 7 335.6 336.2 295.5 345.0 2.68 14 346 8703 -22.1 -22.8 94 0.7 -22.3 107 7 340.1 340.4 295.8 346.5 1.77 15 305 9621 -27.7 -33.7 57 6.0 -28.8 57 7 344.7 344.9 296.1 347.5 0.73 16 300 9740 -28.5 -35.5 51 7.0 -29.7 50 7 345.2 345.3 296.1 347.6 0.62 17 255 10884 -38.1 -43.0 60 4.9 -38.6 175 5 347.4 347.5 296.4 348.8 0.34 18 250 11020 -39.1 -48.1 38 9.0 -39.8 190 5 347.9 348.0 296.4 348.7 0.20 19 249 11047 -39.3 -48.3 38 9.0 -40.0 189 5 348.0 348.1 296.4 348.8 0.19 20 238 11356 -41.9 -47.9 52 6.0 -42.3 178 5 348.6 348.7 296.5 349.5 0.21 21 233 11499 -42.9 -53.9 29 11.0 -43.5 173 6 349.2 349.3 296.5 349.7 0.11 22 214 12067 -48.1 -52.5 60 4.4 -48.3 152 6 349.8 349.8 296.7 350.3 0.14 23 205 12349 -50.3 -60.3 30 10.0 -50.6 141 7 350.6 350.6 296.8 350.9 0.06 24 200 12510 -51.7 -59.7 38 8.0 -52.0 135 7 350.9 350.9 296.9 351.2 0.06 25 197 12608 -52.5 -66.5 17 14.0 -52.8 142 7 351.1 351.2 296.9 351.3 0.03 26 157 14033 -64.7 -68.2 62 3.5 -64.7 244 4 354.0 354.0 297.5 354.1 0.03 27 150 14310 -66.7 -72.7 42 6.0 -66.7 265 3 355.2 355.2 297.7 355.2 0.01 28 134 14980 -72.3 -80.3 29 8.0 -72.3 225 9 356.9 356.9 298.1 356.9 0.00 29 100 16650 -82.9 -87.4 46 4.5 -82.9 120 25 367.6 367.6 300.1 367.6 0.00 TRP 100 16650 -82.9 -87.4 46 4.5 -82.9 120 25 367.6 367.6 300.1 367.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5773.00 m Freezing level: 577.90 mb = 4752.36 m = 15591.54 ft Wetbulb zero: 587.22 mb = 4616.52 m = 15145.89 ft Precipitable water: 2.43 inches Sfc-500 mean rel hum: 87.41 % Est. max temperature: 32.50 C = 90.49 F Sfc-Lift cond lev (LCL): 999.80 mb = 128.74 m = 422.37 ft T: 24.00 C 700-500 lapse rate: 5.33 C/km ThetaE index: 14.31 C Layer 1000.0- 700.0 mb Conv cond level (CCL): 891.02 mb = 1133.60 m = 3719.12 ft Mean mixing ratio: 16.70 g/kg Conv temperature: 31.03 C = 87.85 F Cap Strength: 1.52 C Lifted Index: -1.60 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.75 C Lifted Index @700 mb: -0.76 C Showalter Index: -0.49 C Risk: Thunderstorms probable Total Totals Index: 44.30 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.30 C Cross Totals Index: 21.00 C K Index: 36.20 Risk: > 80 % chance of thunderstorms Sweat Index: 205.80 Risk: None Energy Index: -0.71 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 346.69 J/kg Max Up Vert Vel: 26.33 m/s Conv Inhibition (B-): 39.47 J/kg Cap Strength: 1.52 C Lift Cond Lev (LCL): 936.46 mb = 702.44 m = 2304.56 ft Lev Free Conv (LFC): 791.46 mb = 2147.04 m = 7044.02 ft Equ Level (EL): 311.46 mb = 9468.54 m = 31064.40 ft B at Equ Level: 343.30 J/kg Max Parcel Lev (MPL): 151.46 mb = 14250.98 m = 46754.62 ft Wind level data Storm motion: 162 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 1014 6 350 1 0.2 -1.0 | 343 8 2.2 -7.3 1 1000 127 360 3 -0.0 -3.0 | 348 10 2.0 -9.4 2 925 810 105 15 -14.5 3.9 | 79 13 -12.4 -2.5 3 850 1541 115 5 -4.5 2.1 | 30 5 -2.5 -4.3 4 700 3182 150 13 -6.5 11.3 | 138 7 -4.5 4.9 5 500 5900 120 5 -4.3 2.5 | 31 4 -2.3 -3.9 6 400 7620 165 7 -1.8 6.8 | 211 0 0.2 0.4 7 300 9740 50 7 -5.4 -4.5 | 17 11 -3.3 -10.9 8 250 11020 190 5 0.9 4.9 | 296 3 2.9 -1.4 9 200 12510 135 7 -4.9 4.9 | 64 3 -2.9 -1.4 10 150 14310 265 3 3.0 0.3 | 320 8 5.0 -6.1 11 100 16650 120 25 -21.7 12.5 | 107 21 -19.6 6.1 Wind Parameters Mean winds (0-6000m): 132.2 at 8.9 knts Storm direction: 162.2 at 6.7 knts Shear (0-3000m) pos: 2.2 neg: 0.0 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 145.3 deg Storm rel helicity (0-3000m) pos: 75.9 neg: -9.9 tot: 66.0 m^2/s^2 ave: 22.0 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 7.0 stream: 3.9 10^-3/s Energy-Hel index: 0.15 Bulk Rich Number: 24.03 Bulk Shear: 14.43 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 41 5 8 10| 9.6 0.0 9.6| 27.8 0.0 27.8 55.7 0.80| 11.7 9.3 1000 96 9 52 9| 6.6 0.0 6.6| 65.7 -1.7 64.0 64.0 0.78| 13.0 10.1 1500 101 9 55 8| 2.1 0.0 2.1| 65.7 -9.7 56.0 37.3 0.47| 11.1 5.2 2000 104 8 54 7| 2.1 0.0 2.1| 68.3 -9.9 58.4 29.2 0.50| 8.9 4.4 2500 111 8 59 7| 2.2 0.0 2.2| 71.7 -9.9 61.9 24.8 0.54| 7.7 4.1 3000 119 9 69 6| 2.2 0.0 2.2| 75.9 -9.9 66.0 22.0 0.57| 7.0 3.9 4000 129 10 86 5| 1.7 0.2 1.9| 77.4 -13.7 63.8 15.9 0.48| 5.8 2.8 5000 131 9 88 5| 1.3 0.5 1.9| 77.4 -17.5 59.9 12.0 0.38| 5.0 1.9 6000 132 9 85 5| 1.1 0.7 1.8| 77.5 -20.6 57.0 9.5 0.30| 4.4 1.3 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251008.00.gif