UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025052812.upa.cvt Date: 1200Z 28 MAY 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 28 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 1005 6 29.8 24.8 75 5.0 26.0 135 1 302.5 306.2 299.1 361.8 19.98 1 1000 51 29.8 24.8 75 5.0 26.0 135 1 303.0 306.7 299.2 362.6 20.08 2 979 241 27.6 24.4 83 3.2 25.2 140 3 302.6 306.3 299.1 362.0 20.03 3 925 742 23.6 22.1 91 1.5 22.5 155 7 303.4 306.8 298.3 358.1 18.40 4 895 1030 21.2 20.5 96 0.7 20.7 204 5 303.8 307.0 297.7 355.0 17.21 5 850 1478 19.0 18.3 96 0.7 18.5 280 1 306.0 309.0 297.4 353.3 15.76 6 837 1611 18.0 18.0 100 0.0 18.0 276 1 306.3 309.3 297.4 353.5 15.71 7 791 2096 16.2 15.3 94 0.9 15.6 260 2 309.4 312.0 297.0 351.9 13.96 8 700 3133 12.2 9.6 84 2.6 10.5 225 5 316.0 318.1 296.5 349.7 10.79 9 581 4678 5.0 2.0 81 3.0 3.2 231 12 324.9 326.4 296.5 349.8 7.64 10 552 5095 2.4 -1.2 77 3.6 0.4 232 13 326.6 327.9 296.1 347.5 6.36 11 527 5469 0.0 -0.9 94 0.9 -0.5 233 15 328.1 329.4 296.8 350.6 6.82 12 506 5795 -1.9 -3.9 86 2.0 -3.0 235 17 329.6 330.7 296.3 348.6 5.68 13 502 5858 -1.9 -7.9 63 6.0 -4.8 235 17 330.3 331.2 295.4 344.6 4.21 14 500 5890 -2.1 -7.1 69 5.0 -4.6 235 17 330.5 331.4 295.7 345.7 4.49 15 497 5938 -2.7 -3.5 94 0.8 -3.1 236 17 330.3 331.5 296.7 350.2 5.96 16 483 6164 -4.1 -4.4 98 0.3 -4.3 239 17 331.3 332.5 296.7 350.6 5.73 17 460 6548 -6.7 -6.7 100 0.0 -6.7 244 16 332.7 333.7 296.6 349.8 5.04 18 418 7292 -10.9 -15.9 67 5.0 -12.8 255 15 336.6 337.1 295.7 345.9 2.65 19 407 7497 -12.1 -14.2 84 2.1 -12.9 258 15 337.6 338.2 296.3 348.6 3.13 20 400 7630 -12.9 -17.3 70 4.4 -14.5 260 15 338.2 338.7 296.0 347.0 2.46 21 335 8962 -20.3 -29.3 44 9.0 -22.5 303 17 345.7 345.9 296.5 349.5 1.01 22 333 9006 -20.1 -33.1 30 13.0 -22.9 305 18 346.6 346.7 296.5 349.3 0.71 23 302 9722 -26.1 -39.1 28 13.0 -28.2 328 19 347.9 348.0 296.5 349.6 0.43 24 300 9770 -26.5 -39.5 28 13.0 -28.6 330 19 348.0 348.1 296.5 349.7 0.41 25 270 10523 -33.1 -42.1 40 9.0 -34.2 327 29 349.1 349.2 296.7 350.5 0.35 26 261 10760 -35.1 -38.2 73 3.1 -35.5 326 32 349.5 349.7 297.0 351.7 0.54 27 250 11060 -37.1 -44.1 48 7.0 -37.8 325 36 350.9 351.0 297.1 352.2 0.30 28 242 11284 -39.3 -47.3 42 8.0 -40.0 326 34 350.9 350.9 297.0 351.8 0.22 29 224 11807 -44.3 -50.3 51 6.0 -44.7 330 29 351.1 351.1 297.0 351.8 0.17 30 213 12144 -45.9 -84.9 0 39.0 -46.6 332 25 353.7 353.7 297.4 353.7 0.00 31 200 12560 -48.9 -72.9 4 24.0 -49.4 335 21 355.3 355.3 297.8 355.4 0.01 32 171 13567 -57.5 -72.5 13 15.0 -57.7 343 23 357.4 357.4 298.2 357.4 0.01 33 150 14380 -64.3 -76.3 18 12.0 -64.4 350 25 359.3 359.3 298.6 359.3 0.01 34 137 14928 -68.9 -74.9 42 6.0 -68.9 352 24 360.6 360.6 298.8 360.7 0.01 35 128 15331 -71.3 -80.3 25 9.0 -71.3 354 23 363.4 363.4 299.4 363.4 0.00 36 118 15809 -73.9 -78.7 48 4.8 -73.9 356 23 367.1 367.1 300.1 367.2 0.01 37 100 16760 -79.5 -86.5 30 7.0 -79.5 360 21 374.1 374.1 301.3 374.1 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5839.00 m Freezing level: 527.00 mb = 5469.32 m = 17943.74 ft Wetbulb zero: 540.54 mb = 5264.67 m = 17272.32 ft Precipitable water: 2.78 inches Sfc-500 mean rel hum: 87.10 % Est. max temperature: 33.08 C = 91.55 F Sfc-Lift cond lev (LCL): 935.27 mb = 644.43 m = 2114.25 ft T: 24.38 C 700-500 lapse rate: 5.19 C/km ThetaE index: 9.28 C Layer 979.0- 837.0 mb Conv cond level (CCL): 911.64 mb = 869.26 m = 2851.87 ft Mean mixing ratio: 19.17 g/kg Conv temperature: 30.91 C = 87.63 F Cap Strength: 0.44 C Lifted Index: -2.47 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.29 C Lifted Index @700 mb: -1.00 C Showalter Index: -0.30 C Risk: Thunderstorms probable Total Totals Index: 41.50 C Risk: None Vertical Totals Index: 21.10 C Cross Totals Index: 20.40 C K Index: 36.80 Risk: > 80 % chance of thunderstorms Sweat Index: 238.60 Risk: None Energy Index: -1.53 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1277.06 J/kg Max Up Vert Vel: 50.54 m/s Conv Inhibition (B-): 1.43 J/kg Cap Strength: 0.44 C Lift Cond Lev (LCL): 919.38 mb = 795.26 m = 2609.10 ft Lev Free Conv (LFC): 904.38 mb = 939.16 m = 3081.18 ft Equ Level (EL): 134.38 mb = 15042.20 m = 49350.45 ft B at Equ Level: 1257.65 J/kg Wind level data Storm motion: 256 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 1005 6 135 1 -0.7 0.7 | 84 6 -6.0 -0.6 1 1000 51 135 1 -0.7 0.7 | 84 6 -6.0 -0.6 2 925 742 155 7 -3.0 6.3 | 121 10 -8.2 5.0 3 850 1478 280 1 1.0 -0.2 | 71 5 -4.3 -1.5 4 700 3133 225 5 3.5 3.5 | 142 3 -1.7 2.2 5 500 5890 235 17 13.9 9.8 | 226 12 8.6 8.4 6 400 7630 260 15 14.8 2.6 | 262 10 9.5 1.3 7 300 9770 330 19 9.5 -16.5 | 347 18 4.2 -17.8 8 250 11060 325 36 20.6 -29.5 | 333 34 15.4 -30.8 9 200 12560 335 21 8.9 -19.0 | 350 21 3.6 -20.4 10 150 14380 350 25 4.3 -24.6 | 2 26 -0.9 -25.9 11 100 16760 360 21 -0.0 -21.0 | 13 23 -5.3 -22.3 Wind Parameters Mean winds (0-6000m): 225.9 at 7.3 knts Storm direction: 255.9 at 5.4 knts Shear (0-3000m) pos: 0.3 neg: 0.7 tot: 1.0 10-3/s Storm rel Dir Shear (0-3000m): 51.1 deg Storm rel helicity (0-3000m) pos: 15.0 neg: -3.0 tot: 12.0 m^2/s^2 ave: 4.0 10^-3 m/s^2 rel: 0.26 Storm rel vorticity (0-3000m) horiz: 3.6 stream: 0.9 10^-3/s Energy-Hel index: 0.11 Bulk Rich Number: 179.74 Bulk Shear: 7.10 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 ------------------------------------------------------------------------------- 500 146 3 98 7| 4.1 0.0 4.1| 6.2 0.0 6.2 12.3 0.81| 4.1 3.3 1000 159 4 112 7| 2.3 0.0 2.3| 13.4 0.0 13.4 13.4 0.59| 5.6 3.3 1500 157 4 108 7| 0.7 0.0 0.7| 13.4 -2.9 10.5 7.0 0.18| 5.7 1.0 2000 166 3 107 6| 0.5 0.3 0.8| 13.5 -3.0 10.5 5.2 0.17| 4.6 0.8 2500 181 3 110 6| 0.4 0.5 1.0| 14.1 -3.0 11.1 4.4 0.20| 4.0 0.8 3000 192 3 113 5| 0.3 0.7 1.0| 15.0 -3.0 12.0 4.0 0.26| 3.6 0.9 4000 208 4 125 4| 0.5 0.8 1.2| 18.1 -3.0 15.1 3.8 0.35| 3.3 1.2 5000 219 6 149 4| 0.8 0.6 1.4| 22.0 -3.0 19.0 3.8 0.38| 3.1 1.2 6000 226 7 179 4| 1.0 0.5 1.5| 27.8 -3.0 24.8 4.1 0.39| 2.9 1.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250528.12.gif