UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100912.upa.cvt Date: 1200Z 9 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 9 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 1010 6 29.8 21.8 62 8.0 24.0 145 1 302.1 305.1 296.8 350.8 16.50 1 1007 34 30.6 21.6 59 9.0 24.0 142 2 303.1 306.2 297.0 351.6 16.34 2 1000 99 30.2 21.2 59 9.0 23.7 135 3 303.4 306.3 296.8 351.0 16.05 3 925 791 23.8 19.8 78 4.0 20.9 130 7 303.6 306.6 296.8 350.9 15.91 4 875 1275 19.8 17.6 87 2.2 18.3 120 10 304.4 307.1 296.2 347.9 14.63 5 850 1525 18.0 15.6 86 2.4 16.4 115 11 305.0 307.5 295.4 344.5 13.23 6 841 1616 17.6 15.8 89 1.8 16.4 113 11 305.5 308.0 295.7 346.1 13.55 7 802 2021 16.0 11.0 72 5.0 12.8 102 9 308.0 309.9 294.1 339.3 10.34 8 774 2323 14.4 8.4 67 6.0 10.7 93 7 309.4 311.1 293.5 336.8 8.97 9 747 2623 13.8 -4.2 28 18.0 4.8 85 6 311.9 312.6 289.9 323.8 3.75 10 700 3169 11.0 -6.0 30 17.0 2.8 70 3 314.7 315.3 290.5 325.9 3.49 11 699 3181 11.0 -7.0 28 18.0 2.5 70 3 314.8 315.4 290.3 325.2 3.23 12 676 3459 9.4 3.4 66 6.0 5.9 77 4 316.0 317.4 294.0 338.9 7.25 13 629 4052 6.8 -11.2 26 18.0 -1.0 92 6 319.6 320.1 291.2 328.2 2.58 14 576 4769 2.6 -17.4 21 20.0 -5.0 111 8 322.9 323.2 291.3 328.7 1.69 15 547 5184 0.2 -9.8 47 10.0 -4.3 121 9 324.8 325.5 293.3 336.0 3.32 16 530 5437 -0.5 -18.5 24 18.0 -7.1 128 10 326.9 327.3 292.4 332.8 1.68 17 500 5900 -3.3 -23.3 20 20.0 -9.8 140 11 329.0 329.3 292.6 333.2 1.17 18 482 6189 -4.1 -30.1 11 26.0 -11.2 133 10 331.5 331.6 292.7 333.9 0.65 19 436 6972 -9.9 -34.9 11 25.0 -15.6 115 9 333.8 333.9 293.2 335.5 0.45 20 400 7630 -14.9 -41.9 8 27.0 -19.6 100 7 335.6 335.7 293.4 336.6 0.24 21 356 8503 -21.3 -41.3 15 20.0 -24.4 96 12 338.4 338.5 294.2 339.5 0.29 22 315 9399 -26.7 -56.7 4 30.0 -29.4 92 17 342.9 342.9 295.1 343.2 0.06 23 300 9750 -29.3 -53.3 8 24.0 -31.5 90 19 344.1 344.1 295.4 344.5 0.09 24 295 9870 -30.1 -51.1 11 21.0 -32.1 92 19 344.6 344.6 295.6 345.1 0.12 25 250 11020 -40.7 -53.7 23 13.0 -41.5 110 15 345.6 345.6 295.7 346.0 0.10 26 246 11129 -41.7 -54.7 23 13.0 -42.4 109 15 345.7 345.7 295.7 346.0 0.09 27 202 12436 -51.5 -67.5 13 16.0 -51.8 100 13 350.2 350.2 296.7 350.3 0.02 28 200 12500 -52.1 -67.1 15 15.0 -52.4 100 13 350.3 350.3 296.7 350.4 0.02 29 185 12999 -55.9 -63.9 36 8.0 -56.1 97 15 352.0 352.0 297.1 352.2 0.04 30 175 13350 -58.5 -75.5 9 17.0 -58.7 95 16 353.4 353.4 297.4 353.4 0.01 31 168 13605 -60.7 -65.7 52 5.0 -60.8 94 17 353.8 353.9 297.5 354.0 0.03 32 157 14022 -63.7 -70.7 38 7.0 -63.8 92 18 355.7 355.7 297.8 355.8 0.02 33 150 14300 -65.5 -72.5 37 7.0 -65.5 90 19 357.2 357.3 298.2 357.3 0.01 34 144 14547 -67.3 -76.3 27 9.0 -67.4 92 20 358.3 358.3 298.4 358.3 0.01 35 100 16680 -78.9 -85.9 31 7.0 -78.9 105 31 375.3 375.3 301.5 375.3 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5801.00 m Freezing level: 542.14 mb = 5256.60 m = 17245.86 ft Wetbulb zero: 636.04 mb = 3960.78 m = 12994.53 ft Precipitable water: 1.73 inches Sfc-500 mean rel hum: 49.86 % Est. max temperature: 32.46 C = 90.43 F Sfc-Lift cond lev (LCL): 899.72 mb = 1032.42 m = 3387.16 ft T: 21.80 C 700-500 lapse rate: 5.24 C/km ThetaE index: 22.28 C Layer 802.0- 700.0 mb Conv cond level (CCL): 859.57 mb = 1428.46 m = 4686.49 ft Mean mixing ratio: 15.96 g/kg Conv temperature: 32.47 C = 90.45 F Cap Strength: 0.82 C Lifted Index: -0.68 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.43 C Lifted Index @700 mb: 0.14 C Showalter Index: 1.66 C Risk: Showers probable Total Totals Index: 40.20 C Risk: None Vertical Totals Index: 21.30 C Cross Totals Index: 18.90 C K Index: 19.90 Risk: < 20 % chance of thunderstorms Sweat Index: 220.20 Risk: None Energy Index: -2.14 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 444.69 J/kg Max Up Vert Vel: 29.82 m/s Conv Inhibition (B-): 12.86 J/kg Cap Strength: 0.82 C Lift Cond Lev (LCL): 875.47 mb = 1270.41 m = 4167.96 ft Lev Free Conv (LFC): 780.47 mb = 2252.38 m = 7389.60 ft Equ Level (EL): 760.47 mb = 2472.08 m = 8110.39 ft B at Equ Level: 1.37 J/kg Max Parcel Lev (MPL): 750.47 mb = 2583.96 m = 8477.46 ft Wind level data Storm motion: 151 at 5 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 1010 6 145 1 -0.6 0.8 | 332 4 2.0 -3.8 1 1000 99 135 3 -2.1 2.1 | 350 3 0.4 -2.5 2 925 791 130 7 -5.4 4.5 | 88 3 -2.8 -0.1 3 850 1525 115 11 -10.0 4.6 | 90 7 -7.4 0.1 4 700 3169 70 3 -2.8 -1.0 | 3 6 -0.3 -5.6 5 500 5900 140 11 -7.1 8.4 | 130 6 -4.5 3.8 6 400 7630 100 7 -6.9 1.2 | 52 5 -4.3 -3.4 7 300 9750 90 19 -19.0 0.0 | 74 17 -16.4 -4.6 8 250 11020 110 15 -14.1 5.1 | 93 12 -11.5 0.5 9 200 12500 100 13 -12.8 2.3 | 77 11 -10.2 -2.3 10 150 14300 90 19 -19.0 0.0 | 74 17 -16.4 -4.6 11 100 16680 105 31 -29.9 8.0 | 97 28 -27.4 3.4 Wind Parameters Mean winds (0-6000m): 120.8 at 7.0 knts Storm direction: 150.8 at 5.3 knts Shear (0-3000m) pos: 0.0 neg: 0.6 tot: 0.6 10-3/s Storm rel Dir Shear (0-3000m): 38.8 deg Storm rel helicity (0-3000m) pos: 2.8 neg: -15.3 tot: -12.5 m^2/s^2 ave: -4.2 10^-3 m/s^2 rel: -0.22 Storm rel vorticity (0-3000m) horiz: 3.4 stream: -0.8 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 286.14 Bulk Shear: 1.55 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 ------------------------------------------------------------------------------- 500 134 4 5 2| 0.0 4.5 4.5| 1.9 0.0 1.9 3.8 0.71| 4.5 3.2 1000 131 5 51 2| 0.0 3.7 3.7| 2.8 0.0 2.8 2.8 0.63| 3.8 2.4 1500 125 7 76 3| 0.0 3.4 3.4| 2.8 -0.4 2.4 1.6 0.42| 3.6 1.5 2000 120 8 78 4| 0.0 2.0 2.0| 2.8 -6.2 -3.4 -1.7 0.09| 3.6 0.3 2500 116 8 73 4| 0.0 1.2 1.2| 2.8 -11.1 -8.3 -3.3 -0.10| 3.5 -0.4 3000 115 7 67 4| 0.0 0.6 0.6| 2.8 -15.3 -12.5 -4.2 -0.22| 3.4 -0.8 4000 111 6 55 4| 0.3 0.5 0.7| 6.9 -16.4 -9.5 -2.4 -0.10| 3.0 -0.3 5000 112 6 57 4| 0.6 0.4 1.0| 12.6 -16.4 -3.8 -0.8 0.07| 2.8 0.2 6000 121 7 74 4| 0.8 0.3 1.1| 18.9 -17.1 1.8 0.3 0.18| 2.8 0.5 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251009.12.gif