UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100712.upa.cvt Date: 1200Z 7 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 7 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 1012 6 24.2 23.3 95 0.9 23.6 360 1 296.3 299.6 296.3 348.5 18.08 1 1000 108 23.6 23.0 96 0.6 23.2 20 3 296.8 300.0 296.3 348.7 17.96 2 985 241 22.8 22.4 98 0.4 22.5 37 6 297.2 300.4 296.2 348.1 17.57 3 964 430 24.4 23.5 95 0.9 23.8 62 11 300.7 304.2 298.2 357.3 19.24 4 925 793 21.8 21.7 99 0.1 21.8 110 21 301.6 304.9 297.6 354.5 17.94 5 858 1444 18.4 18.4 100 0.0 18.4 123 19 304.6 307.5 297.0 351.5 15.71 6 850 1525 18.0 17.6 98 0.4 17.7 125 19 305.0 307.8 296.6 350.0 15.07 7 777 2291 13.6 12.4 92 1.2 12.8 137 18 308.2 310.4 295.2 343.7 11.73 8 732 2794 12.0 7.0 71 5.0 8.9 144 17 311.8 313.4 293.9 338.4 8.62 9 727 2851 12.4 8.0 74 4.4 9.6 145 17 312.8 314.6 294.7 341.6 9.30 10 700 3169 10.6 6.6 76 4.0 8.2 150 17 314.2 315.9 294.7 341.6 8.77 11 684 3361 8.4 6.6 88 1.8 7.3 153 18 313.9 315.6 294.7 341.8 8.98 12 635 3975 6.0 3.3 83 2.7 4.4 162 22 317.9 319.4 294.8 342.2 7.67 13 560 4996 0.0 0.0 100 0.0 0.0 177 29 322.4 323.8 295.4 344.6 6.85 14 546 5199 -0.7 -1.5 94 0.8 -1.2 180 30 323.9 325.2 295.4 344.4 6.29 15 510 5743 -3.5 -3.5 100 0.0 -3.5 188 34 326.9 328.1 295.8 346.1 5.80 16 500 5900 -4.3 -4.5 99 0.2 -4.4 190 35 327.8 328.9 295.7 346.0 5.49 17 400 7630 -13.9 -15.3 89 1.4 -14.5 190 17 336.9 337.5 296.0 347.2 2.91 18 390 7822 -14.9 -16.5 88 1.6 -15.5 192 17 338.1 338.6 296.1 347.6 2.70 19 322 9247 -23.9 -26.5 79 2.6 -24.6 205 14 344.7 344.9 296.5 349.8 1.36 20 300 9760 -27.9 -30.6 78 2.7 -28.5 210 13 346.1 346.3 296.6 349.9 1.00 21 262 10716 -35.7 -39.3 69 3.6 -36.1 240 14 348.3 348.4 296.7 350.2 0.48 22 250 11040 -38.5 -41.6 72 3.1 -38.8 250 15 348.8 348.9 296.7 350.4 0.40 23 200 12530 -51.9 -55.8 63 3.9 -52.1 220 13 350.6 350.6 296.8 351.0 0.10 24 193 12759 -53.9 -57.4 65 3.5 -54.0 213 14 351.0 351.0 296.9 351.3 0.08 25 177 13306 -59.5 -64.3 54 4.8 -59.6 197 16 350.6 350.6 296.8 350.7 0.04 26 173 13448 -60.7 -65.0 57 4.3 -60.8 192 17 350.9 350.9 296.8 351.0 0.04 27 150 14320 -67.3 -73.3 42 6.0 -67.4 165 21 354.2 354.2 297.5 354.2 0.01 28 144 14566 -67.9 -78.9 19 11.0 -67.9 357.3 357.3 298.1 357.3 0.01 29 137 14863 -70.7 -76.7 41 6.0 -70.7 357.5 357.5 298.2 357.5 0.01 30 127 15309 -74.1 -82.1 28 8.0 -74.1 359.1 359.1 298.5 359.2 0.00 31 111 16088 -77.1 -81.1 53 4.0 -77.1 367.6 367.6 300.1 367.6 0.01 TRP WND Sounding variables and indices 1000-500 mb thick: 5792.00 m Freezing level: 560.00 mb = 4996.24 m = 16391.67 ft Wetbulb zero: 559.76 mb = 4999.63 m = 16402.77 ft Precipitable water: 2.63 inches Sfc-500 mean rel hum: 91.74 % Est. max temperature: 32.31 C = 90.16 F Sfc-Lift cond lev (LCL): 999.24 mb = 114.67 m = 376.20 ft T: 23.56 C 700-500 lapse rate: 5.46 C/km ThetaE index: 18.92 C Layer 925.0- 727.0 mb Conv cond level (CCL): 991.33 mb = 184.54 m = 605.44 ft Mean mixing ratio: 18.25 g/kg Conv temperature: 24.90 C = 76.81 F Cap Strength: 1.23 C Lifted Index: -2.44 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.20 C Lifted Index @700 mb: -0.85 C Showalter Index: -1.33 C Risk: Thunderstorms probable Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.30 C Cross Totals Index: 21.90 C K Index: 35.90 Risk: > 80 % chance of thunderstorms Sweat Index: 284.20 Risk: None Energy Index: -0.89 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 787.49 J/kg Max Up Vert Vel: 39.69 m/s Conv Inhibition (B-): 12.19 J/kg Cap Strength: 1.23 C Lift Cond Lev (LCL): 954.53 mb = 517.13 m = 1696.60 ft Lev Free Conv (LFC): 889.53 mb = 1131.78 m = 3713.15 ft Equ Level (EL): 149.53 mb = 14339.06 m = 47043.59 ft B at Equ Level: 763.06 J/kg Wind level data Storm motion: 188 at 16 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 6 360 1 -0.0 -1.0 | 7 17 -2.1 -16.9 1 1000 108 20 3 -1.0 -2.8 | 10 19 -3.2 -18.7 2 925 793 110 21 -19.7 7.2 | 68 24 -21.9 -8.7 3 850 1525 125 19 -15.6 10.9 | 74 18 -17.7 -5.0 4 700 3169 150 17 -8.5 14.7 | 84 11 -10.6 -1.2 5 500 5900 190 35 6.1 34.5 | 192 19 4.0 18.6 6 400 7630 190 17 3.0 16.7 | 224 1 0.8 0.9 7 300 9760 210 13 6.5 11.3 | 317 6 4.4 -4.6 8 250 11040 250 15 14.1 5.1 | 312 16 12.0 -10.7 9 200 12530 220 13 8.4 10.0 | 314 9 6.2 -5.9 10 150 14320 165 21 -5.4 20.3 | 120 9 -7.6 4.4 Wind Parameters Mean winds (0-6000m): 157.6 at 21.4 knts Storm direction: 187.6 at 16.0 knts Shear (0-3000m) pos: 3.1 neg: 0.0 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 76.0 deg Storm rel helicity (0-3000m) pos: 179.1 neg: 0.0 tot: 179.1 m^2/s^2 ave: 59.7 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 5.1 10^-3/s Energy-Hel index: 0.86 Bulk Rich Number: 11.03 Bulk Shear: 71.38 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 61 7 23 21| 13.6 0.0 13.6| 70.2 0.0 70.2 140.5 0.77| 15.5 12.0 1000 105 13 49 19| 10.7 0.0 10.7|161.8 0.0 161.8 161.8 0.85| 15.6 13.3 1500 111 15 57 19| 6.7 0.0 6.7|169.3 0.0 169.3 112.9 0.80| 11.7 9.4 2000 116 16 62 19| 4.9 0.0 4.9|174.0 0.0 174.0 87.0 0.77| 9.4 7.3 2500 121 16 65 18| 3.8 0.0 3.8|177.2 0.0 177.2 70.9 0.74| 8.1 6.0 3000 125 17 68 17| 3.1 0.0 3.1|179.1 0.0 179.1 59.7 0.71| 7.1 5.1 4000 133 17 75 15| 3.0 0.0 3.0|198.6 0.0 198.6 49.7 0.75| 6.3 4.7 5000 145 19 88 13| 3.1 0.0 3.1|226.0 0.0 226.0 45.2 0.78| 6.0 4.7 6000 158 21 111 11| 3.0 0.0 3.0|259.4 0.0 259.4 43.2 0.77| 5.9 4.6 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251007.12.gif