UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025052900.upa.cvt Date: 0000Z 29 MAY 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 29 MAY 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 1007 6 26.6 25.5 94 1.1 25.8 125 1 299.2 302.9 298.7 360.1 20.81 1 1000 69 26.2 25.3 95 0.9 25.6 130 1 299.4 303.1 298.7 360.0 20.71 2 925 755 22.0 22.0 100 0.0 22.0 165 11 301.8 305.2 297.8 355.8 18.28 3 873 1258 19.4 19.4 100 0.0 19.4 182 11 304.1 307.2 297.3 353.1 16.46 4 850 1489 18.8 17.6 93 1.2 17.9 190 11 305.8 308.6 296.8 351.0 15.07 5 700 3142 11.4 10.1 92 1.3 10.6 245 11 315.1 317.3 296.6 349.9 11.17 6 688 3287 11.2 8.4 83 2.8 9.4 246 11 316.4 318.4 296.2 348.2 10.12 7 654 3708 8.8 5.7 81 3.1 6.9 248 12 318.4 320.1 295.8 346.3 8.82 8 576 4748 2.0 2.0 100 0.0 2.0 254 13 322.2 323.7 296.0 347.0 7.71 9 500 5880 -3.3 -4.8 89 1.5 -4.1 260 15 329.0 330.1 296.0 346.9 5.36 10 400 7620 -12.7 -14.2 89 1.5 -13.3 270 17 338.5 339.1 296.5 349.7 3.19 11 347 8692 -19.3 -21.4 83 2.1 -20.0 285 10 343.6 344.0 296.8 350.9 2.00 12 300 9760 -26.7 -27.9 90 1.2 -27.0 300 3 347.8 348.0 297.2 352.6 1.29 13 283 10179 -29.9 -30.9 91 1.0 -30.1 318 10 349.0 349.2 297.3 353.0 1.03 14 281 10229 -30.5 -32.8 80 2.3 -30.9 320 11 348.9 349.0 297.1 352.2 0.86 15 271 10486 -32.1 -33.2 90 1.1 -32.3 331 15 350.2 350.4 297.4 353.5 0.86 16 270 10512 -32.3 -36.2 68 3.9 -32.9 332 16 350.2 350.4 297.3 352.8 0.64 17 268 10564 -32.7 -35.3 78 2.6 -33.1 334 17 350.4 350.6 297.3 353.2 0.71 18 250 11050 -36.9 -40.6 68 3.7 -37.4 355 25 351.2 351.3 297.3 353.0 0.44 19 248 11106 -37.3 -40.6 71 3.3 -37.7 355 25 351.4 351.5 297.3 353.2 0.45 20 242 11274 -38.7 -49.7 30 11.0 -39.6 356 25 351.8 351.8 297.2 352.5 0.17 21 232 11562 -41.3 -53.3 26 12.0 -42.1 357 25 352.1 352.1 297.2 352.6 0.12 22 200 12550 -50.3 -57.3 43 7.0 -50.5 360 25 353.1 353.1 297.4 353.5 0.08 23 185 13052 -55.1 -59.3 59 4.2 -55.2 359 27 353.3 353.3 297.4 353.6 0.07 24 169 13623 -59.5 -63.9 56 4.4 -59.6 357 30 355.2 355.3 297.8 355.4 0.04 25 162 13886 -60.9 -75.9 12 15.0 -61.0 356 31 357.2 357.2 298.1 357.2 0.01 26 160 13963 -61.3 -94.3 1 33.0 -61.4 356 31 357.8 357.8 298.2 357.8 0.00 27 150 14360 -64.1 -79.1 11 15.0 -64.2 355 33 359.7 359.7 298.7 359.7 0.01 28 139 14824 -66.9 -74.9 31 8.0 -67.0 354 33 362.7 362.7 299.2 362.7 0.01 29 115 15948 -75.5 -81.5 38 6.0 -75.5 352 34 366.9 366.9 300.0 366.9 0.00 30 100 16750 -79.7 -85.7 36 6.0 -79.7 350 35 373.7 373.7 301.2 373.8 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5811.00 m Freezing level: 547.32 mb = 5174.89 m = 16977.77 ft Wetbulb zero: 550.91 mb = 5104.02 m = 16745.28 ft Precipitable water: 2.80 inches Sfc-500 mean rel hum: 92.92 % Est. max temperature: 32.78 C = 91.00 F Sfc-Lift cond lev (LCL): 991.55 mb = 143.66 m = 471.31 ft T: 25.74 C 700-500 lapse rate: 5.37 C/km ThetaE index: 13.80 C Layer 1000.0- 576.0 mb Conv cond level (CCL): 947.27 mb = 545.71 m = 1790.35 ft Mean mixing ratio: 19.29 g/kg Conv temperature: 28.51 C = 83.32 F Cap Strength: 0.12 C Lifted Index: -2.97 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.32 C Lifted Index @700 mb: -1.22 C Showalter Index: -0.68 C Risk: Thunderstorms probable Total Totals Index: 43.00 C Risk: None Vertical Totals Index: 22.10 C Cross Totals Index: 20.90 C K Index: 38.40 Risk: > 80 % chance of thunderstorms Sweat Index: 248.20 Risk: None Energy Index: -0.88 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1077.84 J/kg Max Up Vert Vel: 46.43 m/s Conv Inhibition (B-): 0.05 J/kg Cap Strength: 0.12 C Lift Cond Lev (LCL): 951.52 mb = 506.29 m = 1661.02 ft Lev Free Conv (LFC): 936.52 mb = 646.10 m = 2119.73 ft Equ Level (EL): 156.52 mb = 14098.32 m = 46253.76 ft B at Equ Level: 1068.29 J/kg Wind level data Storm motion: 262 at 9 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 1007 6 125 1 -0.8 0.6 | 87 9 -9.3 -0.5 1 1000 69 130 1 -0.8 0.6 | 87 9 -9.2 -0.5 2 925 755 165 11 -2.8 10.6 | 130 15 -11.3 9.5 3 850 1489 190 11 1.9 10.8 | 146 12 -6.6 9.7 4 700 3142 245 11 10.0 4.6 | 203 4 1.5 3.5 5 500 5880 260 15 14.8 2.6 | 257 6 6.3 1.5 6 400 7620 270 17 17.0 -0.0 | 277 9 8.5 -1.1 7 300 9760 300 3 2.6 -1.5 | 66 6 -5.9 -2.6 8 250 11050 355 25 2.2 -24.9 | 14 27 -6.3 -26.0 9 200 12550 360 25 -0.0 -25.0 | 18 27 -8.5 -26.1 10 150 14360 355 33 2.9 -32.9 | 9 34 -5.6 -34.0 11 100 16750 350 35 6.1 -34.5 | 4 36 -2.4 -35.6 Wind Parameters Mean winds (0-6000m): 232.4 at 11.4 knts Storm direction: 262.4 at 8.5 knts Shear (0-3000m) pos: 2.0 neg: 0.0 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 107.9 deg Storm rel helicity (0-3000m) pos: 56.9 neg: 0.0 tot: 56.9 m^2/s^2 ave: 19.0 10^-3 m/s^2 rel: 0.77 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 3.3 10^-3/s Energy-Hel index: 0.33 Bulk Rich Number: 60.75 Bulk Shear: 17.74 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 ------------------------------------------------------------------------------- 500 149 4 102 11| 6.7 0.0 6.7| 16.2 0.0 16.2 32.4 0.82| 6.8 5.6 1000 165 7 118 12| 5.3 0.0 5.3| 35.1 0.0 35.1 35.1 0.86| 6.3 5.4 1500 172 8 127 12| 3.6 0.0 3.6| 43.4 0.0 43.4 28.9 0.83| 5.3 4.5 2000 180 9 133 12| 2.8 0.0 2.8| 49.5 0.0 49.5 24.7 0.81| 4.8 3.9 2500 188 9 139 11| 2.3 0.0 2.3| 53.9 0.0 53.9 21.5 0.78| 4.5 3.5 3000 197 10 145 10| 2.0 0.0 2.0| 56.9 0.0 56.9 19.0 0.77| 4.3 3.3 4000 211 10 157 8| 1.7 0.0 1.7| 59.2 0.0 59.2 14.8 0.78| 3.5 2.8 5000 223 11 170 7| 1.5 0.0 1.5| 61.3 0.0 61.3 12.3 0.78| 3.0 2.4 6000 232 11 186 6| 1.4 0.0 1.4| 63.8 0.0 63.8 10.6 0.78| 2.7 2.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250529.00.gif