UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 18 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 61 SFC 986 181 25.4 23.6 90 1.8 24.1 0 0 299.8 303.2 297.7 355.2 18.92 2 978 254 26.4 21.7 75 4.7 23.0 340 2 301.5 304.6 296.9 351.4 16.94 3 925 749 24.0 19.9 78 4.1 21.1 240 9 303.8 306.8 297.0 351.5 16.01 4 894 1048 23.8 16.8 65 7.0 18.9 237 7 306.6 309.2 296.1 347.5 13.59 5 863 1357 22.2 16.2 69 6.0 18.1 243 6 308.1 310.6 296.4 349.0 13.55 6 850 1489 21.2 16.2 73 5.0 17.7 245 5 308.4 310.9 296.6 350.0 13.76 7 771 2326 15.2 10.8 75 4.4 12.3 209 5 310.6 312.6 295.1 343.1 10.61 8 742 2651 14.0 8.0 67 6.0 10.3 207 4 312.7 314.5 294.6 340.9 9.11 9 700 3141 10.8 4.8 66 6.0 7.2 210 2 314.4 315.9 294.0 338.6 7.73 10 622 4115 4.8 -1.2 65 6.0 1.6 215 6 318.4 319.5 293.4 336.5 5.64 11 613 4234 3.6 2.6 93 1.0 3.0 215 7 318.3 319.8 294.9 342.3 7.56 12 585 4612 1.2 0.9 98 0.3 1.0 215 9 319.8 321.2 294.8 342.2 7.00 13 580 4681 1.0 -2.1 80 3.1 -0.6 215 9 320.4 321.5 294.0 338.6 5.66 14 550 5107 -1.1 -4.4 78 3.3 -2.7 217 11 322.8 323.8 294.1 339.2 5.02 15 522 5521 -4.5 -4.5 100 0.0 -4.5 221 13 323.5 324.6 294.5 340.8 5.26 16 521 5536 -4.7 -4.7 100 0.0 -4.7 221 13 323.5 324.5 294.4 340.5 5.19 17 506 5766 -5.1 -6.0 93 0.9 -5.5 227 14 325.7 326.7 294.7 341.7 4.84 18 502 5829 -4.9 -10.9 63 6.0 -7.5 229 14 326.7 327.4 293.8 337.9 3.32 19 500 5860 -5.1 -8.9 75 3.8 -6.8 230 14 326.8 327.6 294.3 339.9 3.90 20 492 5987 -5.5 -13.5 53 8.0 -8.7 230 15 327.8 328.4 293.6 337.2 2.74 21 417 7272 -12.7 -14.7 85 2.0 -13.5 238 17 334.5 335.1 295.4 344.7 2.93 22 410 7401 -12.5 -19.5 56 7.0 -14.9 239 17 336.4 336.8 295.1 343.5 1.99 23 400 7590 -13.9 -19.9 60 6.0 -15.9 240 17 336.9 337.3 295.3 344.0 1.97 24 395 7686 -14.3 -22.3 51 8.0 -16.8 245 17 337.6 337.9 295.1 343.5 1.62 25 376 8058 -17.5 -19.9 82 2.4 -18.3 248 16 338.2 338.6 295.7 345.7 2.10 26 342 8761 -22.9 -24.4 87 1.5 -23.3 252 14 340.1 340.4 295.7 345.8 1.55 27 300 9710 -29.5 -31.8 80 2.3 -29.9 265 15 343.8 344.0 296.0 347.2 0.89 28 285 10073 -32.1 -36.3 66 4.2 -32.7 259 15 345.2 345.3 296.1 347.5 0.60 29 275 10323 -34.3 -40.3 55 6.0 -35.0 256 16 345.5 345.6 296.0 347.2 0.41 30 263 10632 -36.9 -39.0 81 2.1 -37.2 251 16 346.2 346.3 296.2 348.1 0.50 31 258 10764 -38.1 -40.9 75 2.8 -38.4 247 14 346.3 346.4 296.2 347.9 0.41 32 255 10845 -38.3 -52.3 22 14.0 -39.3 244 13 347.2 347.2 296.1 347.6 0.12 33 253 10898 -38.7 -50.7 27 12.0 -39.6 243 12 347.3 347.4 296.2 347.9 0.14 34 252 10926 -38.9 -44.9 53 6.0 -39.5 242 11 347.4 347.5 296.3 348.6 0.28 35 251 10953 -39.1 -48.1 38 9.0 -39.8 241 11 347.5 347.6 296.3 348.3 0.20 36 250 10980 -39.3 -46.3 47 7.0 -39.9 240 10 347.6 347.7 296.3 348.6 0.24 37 228 11605 -45.1 -48.1 72 3.0 -45.3 243 11 348.1 348.1 296.4 349.0 0.21 38 218 11905 -47.3 -53.3 50 6.0 -47.6 244 11 349.2 349.2 296.5 349.7 0.12 39 202 12405 -51.9 -54.3 75 2.4 -52.0 237 13 349.6 349.6 296.7 350.1 0.12 40 201 12438 -52.3 -54.8 74 2.5 -52.4 236 13 349.4 349.5 296.6 349.9 0.11 41 200 12470 -52.5 -55.1 73 2.6 -52.6 235 13 349.6 349.7 296.7 350.1 0.11 42 198 12535 -52.9 -55.7 71 2.8 -53.0 235 13 350.0 350.0 296.7 350.4 0.10 43 196 12600 -53.3 -72.3 8 19.0 -53.6 234 13 350.4 350.4 296.7 350.4 0.01 44 191 12765 -54.7 -60.7 47 6.0 -54.9 234 14 350.7 350.7 296.8 351.0 0.06 45 181 13105 -57.3 -73.3 11 16.0 -57.5 233 15 351.9 351.9 297.1 352.0 0.01 46 170 13496 -60.9 -71.9 22 11.0 -61.0 231 16 352.3 352.3 297.1 352.4 0.01 47 165 13680 -62.5 -64.7 75 2.2 -62.6 230 17 352.7 352.7 297.3 352.8 0.04 48 159 13907 -63.9 -70.9 38 7.0 -64.0 235 17 354.1 354.1 297.5 354.1 0.02 49 150 14260 -66.7 -71.6 50 4.9 -66.7 245 17 355.2 355.2 297.7 355.3 0.02 50 139 14718 -70.5 -75.2 50 4.7 -70.5 245 13 356.3 356.3 298.0 356.4 0.01 51 113 15924 -79.7 -85.7 36 6.0 -79.7 201 8 360.9 360.9 298.9 360.9 0.00 52 112 15975 -79.7 -85.7 36 6.0 -79.7 198 8 361.8 361.8 299.1 361.8 0.00 53 100 16620 -79.3 -86.3 31 7.0 -79.3 30 6 374.5 374.5 301.4 374.5 0.00 54 83 17668 -82.7 -89.7 29 7.0 -82.7 70 9 388.1 388.1 303.5 388.1 0.00 55 75 18233 -83.1 -90.1 29 7.0 -83.1 107 11 398.7 398.7 305.0 398.7 0.00 56 70 18620 -80.3 -89.3 21 9.0 -80.3 265 11 412.6 412.6 306.8 412.6 0.00 57 63 19220 -78.9 -90.9 12 12.0 -78.9 268 12 428.3 428.3 308.6 428.3 0.00 58 53 20236 -67.1 -91.1 2 24.0 -67.3 332 9 477.3 477.3 313.2 477.4 0.00 59 50 20590 -66.1 -90.1 2 24.0 -66.4 20 5 487.7 487.7 314.1 487.7 0.00 60 47 20967 -63.3 -90.3 1 27.0 -63.7 10 5 503.1 503.1 315.2 503.2 0.00 61 34 22967 -60.9 -89.9 1 29.0 -61.6 107 7 558.3 558.3 318.5 558.3 0.00 62 30 23750 -57.7 -88.7 1 31.0 -58.9 150 20 587.3 587.3 320.0 587.4 0.00 63 26 24659 -54.7 -86.7 1 32.0 -56.5 145 15 620.4 620.4 321.5 620.5 0.01 64 21 26020 -56.7 -87.7 1 31.0 -58.5 112 23 653.4 653.4 322.8 653.5 0.01 TRP 83 17668 -82.7 -89.7 29 7.0 -82.7 70 9 388.1 388.1 303.5 388.1 0.00 WND Sounding variables and indices 1000-500 mb thick: 5799.00 m Freezing level: 565.71 mb = 4883.69 m = 16022.42 ft Wetbulb zero: 581.90 mb = 4654.64 m = 15270.95 ft Precipitable water: 2.12 inches Sfc-500 mean rel hum: 75.93 % Est. max temperature: 34.35 C = 93.84 F Sfc-Lift cond lev (LCL): 960.93 mb = 410.22 m = 1345.86 ft T: 25.64 C 700-500 lapse rate: 5.85 C/km ThetaE index: 13.55 C Layer 771.0- 613.0 mb Conv cond level (CCL): 798.77 mb = 2022.49 m = 6635.39 ft Mean mixing ratio: 15.81 g/kg Conv temperature: 35.41 C = 95.74 F Cap Strength: 3.85 C Lifted Index: -2.42 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.51 C Lifted Index @700 mb: -0.00 C Showalter Index: -2.13 C Risk: Severe thunderstorms possible Total Totals Index: 47.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.30 C Cross Totals Index: 21.30 C K Index: 36.50 Risk: > 80 % chance of thunderstorms Sweat Index: 218.40 Risk: None Energy Index: -2.03 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 572.91 J/kg Max Up Vert Vel: 33.85 m/s Conv Inhibition (B-): 142.63 J/kg Cap Strength: 3.85 C Lift Cond Lev (LCL): 871.29 mb = 1273.21 m = 4177.15 ft Lev Free Conv (LFC): 696.29 mb = 3184.81 m = 10448.73 ft Equ Level (EL): 186.29 mb = 12922.60 m = 42396.46 ft B at Equ Level: 563.21 J/kg Max Parcel Lev (MPL): 106.29 mb = 16272.76 m = 53387.66 ft Wind level data Storm motion: 253 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 ---------------------------------------------------------- 0 986 181 0 0 -0.0 -0.0 | 73 5 -5.1 -1.5 1 940 610 240 10 8.7 5.0 | 226 5 3.6 3.5 2 925 749 240 9 7.8 4.5 | 222 4 2.7 3.0 3 908 914 235 8 6.6 4.6 | 206 3 1.5 3.1 4 850 1489 245 5 4.5 2.1 | 137 1 -0.6 0.6 5 847 1524 245 5 4.5 2.1 | 137 1 -0.6 0.6 6 788 2134 210 5 2.5 4.3 | 137 4 -2.6 2.8 7 708 3048 205 3 1.3 2.7 | 107 4 -3.8 1.2 8 700 3141 210 2 1.0 1.7 | 93 4 -4.1 0.2 9 657 3658 215 3 1.7 2.5 | 106 3 -3.4 0.9 10 586 4572 215 9 5.2 7.4 | 181 6 0.1 5.9 11 565 4877 215 10 5.7 8.2 | 186 7 0.6 6.7 12 524 5486 220 13 8.4 10.0 | 201 9 3.3 8.4 13 500 5860 230 14 10.7 9.0 | 217 9 5.6 7.5 14 485 6096 230 15 11.5 9.6 | 218 10 6.4 8.1 15 400 7590 240 17 14.7 8.5 | 234 12 9.6 7.0 16 398 7620 245 17 15.4 7.2 | 241 12 10.3 5.7 17 324 9144 255 13 12.6 3.4 | 256 8 7.5 1.8 18 300 9710 265 15 14.9 1.3 | 271 10 9.9 -0.2 19 261 10668 250 16 15.0 5.5 | 248 11 9.9 4.0 20 250 10980 240 10 8.7 5.0 | 226 5 3.6 3.5 21 209 12192 245 11 10.0 4.6 | 237 6 4.9 3.1 22 200 12470 235 13 10.6 7.5 | 223 8 5.6 5.9 23 164 13716 230 17 13.0 10.9 | 220 12 7.9 9.4 24 150 14260 245 17 15.4 7.2 | 241 12 10.3 5.7 25 127 15240 245 9 8.2 3.8 | 233 4 3.1 2.3 26 103 16459 165 8 -2.1 7.7 | 131 9 -7.2 6.2 27 100 16620 30 6 -3.0 -5.2 | 50 11 -8.1 -6.7 28 83 17668 70 9 -8.5 -3.1 | 71 14 -13.5 -4.6 29 74 18288 110 11 -10.3 3.8 | 98 16 -15.4 2.2 30 70 18620 265 11 11.0 1.0 | 275 6 5.9 -0.6 31 57 19812 270 13 13.0 -0.0 | 281 8 7.9 -1.5 32 50 20590 20 5 -1.7 -4.7 | 48 9 -6.8 -6.2 33 44 21336 360 5 -0.0 -5.0 | 38 8 -5.1 -6.5 34 35 22860 100 5 -4.9 0.9 | 86 10 -10.0 -0.6 35 30 23750 150 20 -10.0 17.3 | 136 22 -15.1 15.8 36 26 24384 145 15 -8.6 12.3 | 128 17 -13.7 10.8 37 18 25908 85 30 -29.9 -2.6 | 83 35 -35.0 -4.1 38 16 26213 85 29 -28.9 -2.5 | 83 34 -34.0 -4.0 Wind Parameters Mean winds (0-6000m): 223.4 at 7.1 knts Storm direction: 253.4 at 5.3 knts Shear (0-3000m) pos: 0.3 neg: 0.7 tot: 0.9 10-3/s Storm rel Dir Shear (0-3000m): 20.5 deg Storm rel helicity (0-3000m) pos: 0.0 neg: -18.8 tot: -18.7 m^2/s^2 ave: -6.2 10^-3 m/s^2 rel: -0.79 Storm rel vorticity (0-3000m) horiz: 4.5 stream: -3.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 812.68 Bulk Shear: 0.70 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 ------------------------------------------------------------------------------- 500 240 6 173 1| 0.0 9.8 9.8| 0.0 -13.7 -13.7 -27.4 -0.96| 15.8-15.1 1000 239 7 200 2| 0.0 3.4 3.4| 0.0 -15.1 -15.1 -15.1 -0.88| 9.5 -8.3 1500 239 6 193 2| 0.0 1.7 1.7| 0.0 -15.4 -15.4 -10.3 -0.82| 7.2 -5.9 2000 236 6 177 2| 0.0 1.3 1.3| 0.0 -15.8 -15.8 -7.9 -0.76| 6.0 -4.5 2500 232 6 163 2| 0.0 0.8 0.8| 0.0 -16.9 -16.9 -6.8 -0.77| 5.0 -3.9 3000 229 5 150 2| 0.3 0.7 0.9| 0.0 -18.8 -18.7 -6.2 -0.79| 4.5 -3.5 4000 226 5 139 2| 0.1 0.9 1.0| 3.8 -18.8 -15.0 -3.7 -0.54| 3.9 -2.1 5000 222 6 156 3| 0.2 1.0 1.2| 9.0 -18.8 -9.8 -2.0 -0.37| 3.7 -1.4 6000 223 7 176 4| 0.6 0.9 1.4| 18.5 -18.8 -0.3 -0.0 -0.22| 3.5 -0.8 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20250418.00.gif