UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025053100.upa.cvt Date: 0000Z 31 MAY 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 31 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 27.0 25.2 90 1.8 25.7 160 5 299.7 303.5 298.7 359.8 20.48 1 1000 53 26.6 25.2 92 1.4 25.6 155 7 299.8 303.5 298.7 360.1 20.58 2 981 223 25.0 25.0 100 0.0 25.0 161 9 299.8 303.6 298.8 360.6 20.74 3 925 740 22.4 22.3 99 0.1 22.3 180 15 302.2 305.6 298.2 357.3 18.63 4 894 1037 21.0 21.0 100 0.0 21.0 214 17 303.7 307.0 298.0 356.6 17.78 5 877 1205 22.4 19.4 83 3.0 20.2 234 19 306.9 309.9 298.0 356.2 16.38 6 850 1477 21.0 18.1 84 2.9 18.9 265 21 308.1 311.1 297.7 355.2 15.56 7 767 2362 16.6 13.6 82 3.0 14.6 260 20 312.6 315.0 297.1 352.2 12.88 8 753 2520 17.0 9.0 59 8.0 11.9 259 20 314.7 316.5 295.4 344.6 9.62 9 751 2543 16.8 8.8 59 8.0 11.7 259 20 314.7 316.5 295.4 344.3 9.51 10 721 2889 13.4 11.5 88 1.9 12.1 257 19 314.7 316.9 297.0 351.7 11.92 11 700 3139 13.2 9.0 76 4.2 10.5 255 19 317.1 319.1 296.5 349.6 10.36 12 690 3260 13.0 8.5 74 4.5 10.1 255 19 318.2 320.2 296.7 350.2 10.16 13 627 4061 8.6 0.6 57 8.0 4.1 258 16 322.0 323.2 295.0 342.7 6.39 14 563 4945 2.8 0.2 83 2.6 1.3 261 13 325.2 326.6 296.1 347.8 6.92 15 522 5555 -0.5 -2.8 84 2.3 -1.7 264 10 328.4 329.6 296.3 348.2 5.98 16 501 5884 -1.3 -5.3 74 4.0 -3.4 265 9 331.3 332.3 296.3 348.6 5.15 17 500 5900 -1.1 -5.4 73 4.3 -3.3 265 9 331.7 332.7 296.4 349.0 5.12 18 474 6325 -2.9 -11.9 50 9.0 -6.9 272 9 334.6 335.2 295.7 345.8 3.24 19 469 6409 -2.5 -10.5 54 8.0 -6.2 274 9 336.1 336.8 296.4 348.8 3.67 20 413 7404 -10.5 -13.9 76 3.4 -11.9 291 9 338.2 338.9 296.5 349.4 3.16 21 400 7650 -10.9 -15.9 67 5.0 -12.9 295 9 340.8 341.4 296.8 350.7 2.77 22 385 7942 -12.3 -20.3 51 8.0 -15.1 312 10 342.7 343.1 296.6 350.0 1.98 23 353 8597 -18.5 -21.9 75 3.4 -19.6 351 11 343.0 343.4 296.6 349.9 1.88 24 338 8919 -20.9 -22.9 84 2.0 -21.5 11 11 344.0 344.4 296.8 350.6 1.79 25 329 9117 -21.5 -28.5 53 7.0 -23.2 23 12 345.8 346.1 296.7 350.0 1.11 26 321 9298 -23.1 -27.6 67 4.5 -24.2 34 12 346.1 346.3 296.8 350.7 1.23 27 306 9647 -25.3 -32.3 52 7.0 -26.8 56 13 347.8 347.9 296.8 351.0 0.83 28 300 9790 -26.1 -37.1 35 11.0 -28.0 65 13 348.6 348.7 296.8 350.7 0.53 29 299 9814 -26.3 -38.3 31 12.0 -28.3 66 13 348.7 348.8 296.7 350.5 0.47 30 296 9887 -26.1 -46.1 13 20.0 -28.7 68 13 349.9 350.0 296.8 350.8 0.21 31 250 11080 -36.9 -45.9 39 9.0 -37.8 100 9 351.2 351.3 297.1 352.2 0.25 32 226 11773 -42.9 -50.9 41 8.0 -43.4 82 21 352.3 352.3 297.3 353.0 0.16 33 200 12590 -48.7 -56.7 39 8.0 -49.0 60 35 355.7 355.7 297.9 356.0 0.09 34 198 12656 -49.5 -57.5 39 8.0 -49.8 59 35 355.4 355.4 297.8 355.8 0.08 35 185 13096 -51.9 -67.9 13 16.0 -52.3 55 35 358.5 358.5 298.4 358.6 0.02 36 151 14370 -63.9 -69.9 44 6.0 -64.0 40 35 359.3 359.3 298.6 359.4 0.02 37 150 14410 -64.3 -70.3 44 6.0 -64.4 40 35 359.3 359.3 298.6 359.4 0.02 38 145 14617 -65.7 -78.7 15 13.0 -65.8 42 35 360.4 360.4 298.8 360.4 0.01 39 125 15502 -73.5 -78.1 49 4.6 -73.5 49 35 361.9 361.9 299.1 361.9 0.01 40 100 16780 -81.9 -86.9 42 5.0 -81.9 60 36 369.5 369.5 300.5 369.5 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5847.00 m Freezing level: 528.21 mb = 5462.65 m = 17921.88 ft Wetbulb zero: 545.39 mb = 5201.34 m = 17064.57 ft Precipitable water: 2.66 inches Sfc-500 mean rel hum: 80.17 % Est. max temperature: 35.19 C = 95.35 F Sfc-Lift cond lev (LCL): 979.58 mb = 235.76 m = 773.48 ft T: 24.94 C 700-500 lapse rate: 5.18 C/km ThetaE index: 16.30 C Layer 925.0- 721.0 mb Conv cond level (CCL): 950.81 mb = 497.91 m = 1633.54 ft Mean mixing ratio: 19.63 g/kg Conv temperature: 28.36 C = 83.05 F Cap Strength: 1.52 C Lifted Index: -1.18 C Risk: Thunderstorms probable Lifted Index @300 mb: -2.39 C Lifted Index @700 mb: 0.29 C Showalter Index: 0.05 C Risk: Thunderstorms probable Total Totals Index: 41.30 C Risk: None Vertical Totals Index: 22.10 C Cross Totals Index: 19.20 C K Index: 36.00 Risk: > 80 % chance of thunderstorms Sweat Index: 268.20 Risk: None Energy Index: -1.25 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 717.06 J/kg Max Up Vert Vel: 37.87 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 1.48 C Lift Cond Lev (LCL): 951.56 mb = 490.99 m = 1610.84 ft Lev Free Conv (LFC): 946.56 mb = 537.33 m = 1762.88 ft Equ Level (EL): 886.56 mb = 1110.01 m = 3641.71 ft B at Equ Level: 19.39 J/kg Max Parcel Lev (MPL): 836.56 mb = 1614.32 m = 5296.26 ft Wind level data Storm motion: 281 at 12 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 6 160 5 -1.7 4.7 | 118 15 -13.2 6.9 1 1000 53 155 7 -3.0 6.3 | 121 17 -14.5 8.6 2 925 740 180 15 0.0 15.0 | 146 21 -11.5 17.2 3 850 1477 265 21 20.9 1.8 | 247 10 9.4 4.1 4 700 3139 255 19 18.4 4.9 | 224 10 6.8 7.2 5 500 5900 265 9 9.0 0.8 | 140 4 -2.6 3.0 6 400 7650 295 9 8.2 -3.8 | 65 4 -3.4 -1.6 7 300 9790 65 13 -11.8 -5.5 | 82 24 -23.3 -3.3 8 250 11080 100 9 -8.9 1.6 | 101 21 -20.4 3.8 9 200 12590 60 35 -30.3 -17.5 | 70 45 -41.8 -15.3 10 150 14410 40 35 -22.5 -26.8 | 54 42 -34.0 -24.6 11 100 16780 60 36 -31.2 -18.0 | 70 46 -42.7 -15.8 Wind Parameters Mean winds (0-6000m): 251.0 at 15.6 knts Storm direction: 281.0 at 11.7 knts Shear (0-3000m) pos: 3.9 neg: 0.6 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 107.8 deg Storm rel helicity (0-3000m) pos: 145.3 neg: -9.6 tot: 135.7 m^2/s^2 ave: 45.2 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 7.2 stream: 5.3 10^-3/s Energy-Hel index: 0.65 Bulk Rich Number: 17.42 Bulk Shear: 41.15 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 ------------------------------------------------------------------------------- 500 165 9 129 18| 7.7 0.0 7.7| 28.8 0.0 28.8 57.6 0.76| 8.2 6.3 1000 180 12 141 18| 7.5 0.0 7.5| 86.7 0.0 86.7 86.7 0.87| 10.3 9.0 1500 208 15 162 16| 7.8 0.0 7.8|145.3 0.0 145.3 96.9 0.89| 13.2 11.8 2000 229 16 182 13| 5.9 0.3 6.2|145.3 -3.3 142.0 71.0 0.83| 10.2 8.5 2500 238 17 194 11| 4.7 0.5 5.2|145.3 -6.5 138.8 55.5 0.78| 8.4 6.6 3000 243 17 201 11| 3.9 0.6 4.5|145.3 -9.6 135.7 45.2 0.73| 7.2 5.3 4000 247 17 207 10| 2.6 0.5 3.0|145.3 -12.7 132.6 33.1 0.64| 5.9 3.8 5000 249 17 207 9| 1.8 0.4 2.1|145.3 -16.0 129.3 25.9 0.55| 5.1 2.8 6000 251 16 204 8| 1.3 0.3 1.6|145.3 -19.3 126.0 21.0 0.45| 4.5 2.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250531.00.gif