UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042800.upa.cvt Date: 0000Z 28 APR 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 28 APR 25 Station: VTUN WMO ident: 48431 Latitude: 14.97 Longitude: 102.83 Elevation: 181.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 87 SFC 989 181 26.4 22.1 77 4.3 23.3 280 2 300.5 303.6 296.8 350.9 17.17 2 975 308 25.6 21.7 79 3.9 22.8 258 3 300.9 304.0 296.8 350.9 17.00 3 953 511 27.2 20.2 66 7.0 22.2 222 4 304.5 307.4 297.0 351.7 15.83 4 925 777 25.2 20.2 74 5.0 21.6 140 3 305.1 308.1 297.4 353.9 16.32 5 850 1517 20.4 16.9 80 3.5 17.9 25 5 307.5 310.2 296.8 351.0 14.40 6 831 1712 18.8 17.1 90 1.7 17.6 42 7 307.8 310.6 297.3 352.9 14.93 7 724 2885 12.2 5.2 62 7.0 8.0 84 14 313.0 314.4 293.5 336.9 7.68 8 711 3037 11.8 -4.2 32 16.0 3.8 85 15 314.1 314.9 290.8 326.7 3.94 9 700 3168 10.8 -1.2 43 12.0 4.4 85 15 314.4 315.4 291.8 330.3 5.01 10 633 4000 4.8 -1.2 65 6.0 1.6 83 14 316.8 317.9 292.9 334.5 5.54 11 599 4450 2.4 -10.6 38 13.0 -3.2 81 10 319.0 319.6 291.3 328.4 2.85 12 578 4738 0.0 -3.1 80 3.1 -1.6 92 7 319.5 320.5 293.4 336.5 5.27 13 567 4892 -0.9 -1.8 94 0.9 -1.4 105 5 320.2 321.4 294.1 339.3 5.92 14 516 5642 -4.7 -9.7 68 5.0 -6.9 169 8 324.4 325.1 293.4 336.2 3.55 15 514 5672 -4.9 -6.0 92 1.1 -5.4 169 8 324.5 325.4 294.4 340.2 4.76 16 512 5703 -5.1 -7.3 85 2.2 -6.1 170 9 324.6 325.5 294.0 338.9 4.32 17 507 5781 -4.7 -20.7 27 16.0 -10.1 172 9 326.0 326.3 292.0 331.1 1.45 18 504 5827 -5.3 -8.0 81 2.7 -6.5 173 9 325.8 326.7 294.3 339.7 4.16 19 500 5890 -5.9 -8.3 83 2.4 -7.0 175 9 325.8 326.7 294.2 339.5 4.09 20 421 7214 -13.1 -17.6 69 4.5 -14.7 134 5 333.1 333.5 294.6 341.0 2.28 21 400 7600 -15.9 -17.4 88 1.5 -16.4 120 4 334.3 334.8 295.0 342.9 2.44 22 396 7676 -16.7 -17.6 93 0.9 -17.0 142 3 334.2 334.7 295.0 342.8 2.42 23 371 8165 -19.3 -25.3 59 6.0 -20.9 163 4 337.1 337.4 294.8 341.9 1.32 24 365 8287 -20.1 -23.0 78 2.9 -20.9 168 4 337.6 337.9 295.1 343.5 1.65 25 362 8348 -20.3 -30.3 40 10.0 -22.5 171 4 338.1 338.3 294.6 341.3 0.85 26 360 8389 -20.5 -23.6 76 3.1 -21.4 172 4 338.4 338.7 295.3 344.1 1.58 27 355 8493 -21.1 -25.4 68 4.3 -22.2 177 5 338.9 339.2 295.3 343.9 1.37 28 352 8556 -21.5 -35.5 27 14.0 -24.1 179 5 339.2 339.3 294.6 341.3 0.53 29 346 8683 -22.5 -25.5 76 3.0 -23.3 185 5 339.5 339.8 295.4 344.6 1.39 30 343 8747 -22.5 -26.2 72 3.7 -23.4 187 5 340.4 340.7 295.6 345.2 1.31 31 300 9720 -29.7 -32.8 74 3.1 -30.3 245 5 343.5 343.7 295.9 346.6 0.81 32 290 9960 -31.3 -36.0 63 4.7 -32.0 251 7 344.6 344.7 296.0 347.0 0.61 33 251 10963 -39.3 -44.3 59 5.0 -39.8 279 15 347.2 347.3 296.3 348.4 0.30 34 250 10990 -39.7 -45.7 53 6.0 -40.2 280 15 347.0 347.1 296.2 348.1 0.26 35 239 11297 -41.9 -48.9 46 7.0 -42.4 287 16 348.2 348.3 296.4 349.0 0.19 36 235 11411 -42.7 -46.8 64 4.1 -43.0 290 16 348.7 348.8 296.5 349.7 0.24 37 204 12351 -50.5 -56.5 49 6.0 -50.7 1 17 350.8 350.8 296.9 351.2 0.09 38 200 12480 -51.7 -57.7 49 6.0 -51.9 45 16 350.9 350.9 296.9 351.2 0.08 39 155 14081 -65.4 -70.2 51 4.8 -65.4 310 75 354.1 354.1 297.5 354.2 0.02 40 153 14160 -66.1 -70.8 52 4.7 -66.1 308 66 354.2 354.2 297.5 354.3 0.02 41 150 14280 -66.7 -71.7 49 5.0 -66.7 305 53 355.2 355.2 297.7 355.3 0.02 42 116 15787 -78.5 -84.5 37 6.0 -78.5 356 29 360.4 360.4 298.8 360.4 0.00 43 100 16630 -79.1 -85.1 37 6.0 -79.1 135 76 374.9 374.9 301.4 374.9 0.00 44 82 17739 -85.7 -88.7 58 3.0 -85.7 68 35 383.3 383.3 302.8 383.3 0.00 45 76 18158 -84.3 -90.3 34 6.0 -84.3 43 20 394.6 394.6 304.5 394.6 0.00 46 75 18231 -82.5 -90.5 24 8.0 -82.5 39 17 399.9 399.9 305.2 399.9 0.00 47 73 18385 -76.3 -87.3 16 11.0 -76.3 31 12 416.1 416.1 307.3 416.1 0.00 48 72 18464 -74.9 -85.9 17 11.0 -74.9 40 12 420.7 420.7 307.8 420.8 0.00 49 68 18796 -75.1 -89.1 10 14.0 -75.2 75 13 427.2 427.2 308.5 427.3 0.00 50 60 19519 -76.9 -89.9 11 13.0 -76.9 153 14 438.8 438.8 309.7 438.8 0.00 51 57 19816 -73.3 -90.3 6 17.0 -73.4 186 15 453.4 453.4 311.2 453.5 0.00 52 54 20139 -65.5 -89.5 2 24.0 -65.8 220 34 478.5 478.5 313.3 478.5 0.00 53 52 20369 -64.1 -90.1 2 26.0 -64.4 244 81 486.9 486.9 314.0 486.9 0.00 54 51 20488 -65.1 -94.1 1 29.0 -65.4 256 105 487.3 487.3 314.0 487.3 0.00 TRP WND 155 14081 -65.4 -70.2 51 4.8 -65.4 310 75 354.1 354.1 297.5 354.2 0.02 Sounding variables and indices 1000-500 mb thick: 5803.00 m Freezing level: 578.00 mb = 4737.94 m = 15544.23 ft Wetbulb zero: 621.66 mb = 4147.33 m = 13606.57 ft Precipitable water: 2.06 inches Sfc-500 mean rel hum: 68.98 % Est. max temperature: 33.57 C = 92.43 F Sfc-Lift cond lev (LCL): 929.24 mb = 736.23 m = 2415.41 ft T: 25.51 C 700-500 lapse rate: 6.14 C/km ThetaE index: 26.22 C Layer 724.0- 700.0 mb Conv cond level (CCL): 820.34 mb = 1822.02 m = 5977.70 ft Mean mixing ratio: 16.20 g/kg Conv temperature: 34.18 C = 93.53 F Cap Strength: 2.60 C Lifted Index: -3.81 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.59 C Lifted Index @700 mb: -0.44 C Showalter Index: -3.28 C Risk: Severe thunderstorms possible Total Totals Index: 49.10 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.30 C Cross Totals Index: 22.80 C K Index: 31.20 Risk: 60-80 % chance of thunderstorms Sweat Index: 223.80 Risk: None Energy Index: -2.29 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 989.08 J/kg Max Up Vert Vel: 44.48 m/s Conv Inhibition (B-): 84.23 J/kg Cap Strength: 2.60 C Lift Cond Lev (LCL): 870.63 mb = 1307.13 m = 4288.43 ft Lev Free Conv (LFC): 735.63 mb = 2749.47 m = 9020.46 ft Equ Level (EL): 185.63 mb = 12948.41 m = 42481.14 ft B at Equ Level: 989.01 J/kg Max Parcel Lev (MPL): 85.63 mb = 17496.76 m = 57403.36 ft Wind level data Storm motion: 125 at 7 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 ---------------------------------------------------------- 0 989 181 280 2 2.0 -0.3 | 299 9 7.6 -4.2 1 943 610 205 4 1.7 3.6 | 272 7 7.3 -0.3 2 925 777 140 3 -1.9 2.3 | 294 4 3.7 -1.6 3 911 914 115 4 -3.6 1.7 | 318 3 2.0 -2.2 4 850 1517 25 5 -2.1 -4.5 | 338 9 3.5 -8.4 5 849 1524 25 6 -2.5 -5.4 | 342 10 3.1 -9.3 6 791 2134 80 10 -9.8 -1.7 | 37 7 -4.2 -5.6 7 710 3048 85 15 -14.9 -1.3 | 61 11 -9.3 -5.2 8 700 3168 85 15 -14.9 -1.3 | 61 11 -9.3 -5.2 9 659 3658 85 16 -15.9 -1.4 | 63 12 -10.3 -5.3 10 588 4572 80 9 -8.9 -1.6 | 31 6 -3.3 -5.5 11 567 4877 105 5 -4.8 1.3 | 344 3 0.8 -2.6 12 526 5486 165 8 -2.1 7.7 | 223 5 3.5 3.8 13 500 5890 175 9 -0.8 9.0 | 224 7 4.8 5.1 14 487 6096 175 8 -0.7 8.0 | 230 6 4.9 4.1 15 400 7600 120 4 -3.5 2.0 | 312 3 2.1 -1.9 16 399 7620 140 3 -1.9 2.3 | 294 4 3.7 -1.6 17 324 9144 205 6 2.5 5.4 | 259 8 8.1 1.5 18 300 9720 245 5 4.5 2.1 | 280 10 10.1 -1.8 19 262 10668 270 12 12.0 -0.0 | 283 18 17.6 -3.9 20 250 10990 280 15 14.8 -2.6 | 288 21 20.4 -6.5 21 209 12192 310 18 13.8 -11.6 | 309 25 19.4 -15.5 22 200 12480 45 16 -11.3 -11.3 | 21 16 -5.7 -15.2 23 164 13716 315 38 26.9 -26.9 | 313 45 32.5 -30.8 24 155 14081 310 75 57.5 -48.2 | 310 82 63.1 -52.1 25 150 14280 305 53 43.4 -30.4 | 305 60 49.0 -34.3 26 127 15240 300 39 33.8 -19.5 | 301 46 39.4 -23.4 27 103 16459 70 16 -15.0 -5.5 | 45 13 -9.4 -9.4 28 100 16630 135 76 -53.7 53.7 | 136 69 -48.1 49.8 29 73 18288 30 12 -6.0 -10.4 | 2 14 -0.4 -14.3 30 55 19812 210 15 7.5 13.0 | 235 16 13.1 9.1 31 46 20726 320 230 147.8 -176.2 | 320 237 153.4 -180.1 Wind Parameters Mean winds (0-6000m): 94.9 at 9.1 knts Storm direction: 124.9 at 6.8 knts Shear (0-3000m) pos: 1.9 neg: 1.4 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 121.6 deg Storm rel helicity (0-3000m) pos: 32.7 neg: -10.1 tot: 22.6 m^2/s^2 ave: 7.5 10^-3 m/s^2 rel: 0.40 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 2.1 10^-3/s Energy-Hel index: 0.15 Bulk Rich Number: 59.28 Bulk Shear: 16.68 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 ------------------------------------------------------------------------------- 500 221 3 282 8| 0.0 4.6 4.6| 0.0 -8.4 -8.4 -16.8 -0.61| 6.3 -3.9 1000 156 3 280 4| 0.0 3.2 3.2| 4.9 -8.4 -3.5 -3.5 0.08| 6.7 0.5 1500 81 4 341 5| 0.0 2.8 2.8| 10.5 -10.1 0.4 0.3 0.13| 6.7 0.8 2000 73 5 354 5| 1.7 2.1 3.9| 24.8 -10.1 14.7 7.3 0.34| 6.8 2.3 2500 77 7 8 5| 1.9 1.7 3.6| 29.1 -10.1 19.0 7.6 0.38| 6.0 2.3 3000 80 8 22 6| 1.9 1.4 3.3| 32.7 -10.1 22.6 7.5 0.40| 5.4 2.1 4000 82 10 37 7| 1.5 0.8 2.3| 33.6 -16.4 17.3 4.3 0.29| 4.6 1.3 5000 84 9 37 6| 1.1 0.7 1.8| 33.6 -23.9 9.8 2.0 0.06| 4.9 0.3 6000 95 9 48 5| 1.2 0.5 1.7| 35.4 -24.1 11.2 1.9 0.07| 4.7 0.3 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20250428.00.gif