UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041712.upa.cvt Date: 1200Z 17 APR 25 Searching for VTCC... Searching the city database file for: VTCC ... Date:1200Z 17 APR 25 Station: VTCC WMO ident: 48327 Latitude: 18.78 Longitude: 98.98 Elevation: 314.00 ------------------------------------------------------------------------------- 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 40 SFC 970 314 33.4 18.4 41 15.0 22.7 0 0 309.2 311.8 296.9 351.3 13.86 2 925 741 30.0 16.0 43 14.0 20.3 230 8 310.0 312.3 296.2 348.0 12.46 3 850 1488 23.2 13.2 53 10.0 16.5 210 8 310.4 312.6 295.5 345.0 11.29 4 818 1821 20.2 12.2 60 8.0 14.9 287 9 310.7 312.8 295.4 344.3 10.98 5 700 3145 10.8 2.8 58 8.0 6.2 295 14 314.4 315.7 293.2 335.5 6.70 6 635 3949 4.6 -1.4 65 6.0 1.4 279 20 316.3 317.3 292.7 333.6 5.44 7 565 4891 -1.3 -6.0 70 4.7 -3.6 290 22 320.1 320.9 292.9 334.2 4.33 8 500 5860 -5.1 -12.1 58 7.0 -8.0 265 23 326.8 327.4 293.6 337.1 3.02 9 400 7590 -14.3 -22.3 51 8.0 -16.8 260 32 336.4 336.7 294.8 342.2 1.60 10 352 8547 -20.1 -29.1 45 9.0 -22.2 265 37 341.1 341.3 295.4 344.8 0.98 11 339 8824 -22.5 -30.5 48 8.0 -24.3 265 39 341.5 341.7 295.5 344.9 0.89 12 315 9359 -25.9 -45.9 14 20.0 -28.4 263 44 344.0 344.1 295.5 344.9 0.20 13 302 9662 -28.5 -40.5 31 12.0 -30.2 260 47 344.6 344.6 295.7 346.0 0.37 14 300 9710 -28.7 -41.7 28 13.0 -30.4 260 48 344.9 345.0 295.8 346.2 0.33 15 253 10908 -37.9 -54.9 15 17.0 -39.0 265 48 348.5 348.5 296.4 348.9 0.09 16 250 10990 -38.9 -54.9 17 16.0 -39.9 265 48 348.2 348.3 296.3 348.6 0.09 17 241 11240 -41.5 -50.5 37 9.0 -42.1 262 47 348.0 348.0 296.3 348.6 0.15 18 219 11883 -45.7 -55.7 31 10.0 -46.2 254 46 351.2 351.2 297.0 351.6 0.09 19 200 12480 -50.9 -60.9 30 10.0 -51.2 250 45 352.2 352.2 297.1 352.4 0.05 20 171 13475 -60.7 -69.7 30 9.0 -60.8 266 40 352.1 352.1 297.1 352.1 0.02 21 150 14280 -65.3 -79.3 13 14.0 -65.4 275 22 357.6 357.6 298.2 357.6 0.00 22 147 14403 -66.3 -81.3 10 15.0 -66.4 277 21 357.9 357.9 298.3 357.9 0.00 23 110 16115 -77.3 -89.3 13 12.0 -77.3 203 9 368.2 368.2 300.2 368.2 0.00 24 100 16660 -79.1 -91.1 12 12.0 -79.1 160 4 374.9 374.9 301.4 374.9 0.00 25 76 18201 -83.7 -93.7 16 10.0 -83.7 395.9 395.9 304.6 395.9 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5820.00 m Freezing level: 580.42 mb = 4683.74 m = 15366.42 ft Wetbulb zero: 614.96 mb = 4207.71 m = 13804.65 ft Precipitable water: 1.66 inches Sfc-500 mean rel hum: 59.03 % Est. max temperature: 34.84 C = 94.71 F Sfc-Lift cond lev (LCL): 781.34 mb = 2210.87 m = 7253.41 ft T: 17.43 C 700-500 lapse rate: 5.86 C/km ThetaE index: 17.74 C Layer 925.0- 565.0 mb Conv cond level (CCL): 715.67 mb = 2956.85 m = 9700.84 ft Mean mixing ratio: 12.52 g/kg Conv temperature: 38.05 C = 100.49 F Cap Strength: 2.49 C Lifted Index: -1.49 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.69 C Lifted Index @700 mb: 0.73 C Showalter Index: -0.32 C Risk: Thunderstorms probable Total Totals Index: 46.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 28.30 C Cross Totals Index: 18.30 C K Index: 33.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 197.40 Risk: None Energy Index: -1.55 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 241.05 J/kg Max Up Vert Vel: 21.96 m/s Conv Inhibition (B-): 88.72 J/kg Cap Strength: 2.49 C Lift Cond Lev (LCL): 756.51 mb = 2485.24 m = 8153.59 ft Lev Free Conv (LFC): 671.51 mb = 3487.71 m = 11442.48 ft Equ Level (EL): 371.51 mb = 8143.15 m = 26716.04 ft B at Equ Level: 240.45 J/kg Max Parcel Lev (MPL): 191.51 mb = 12755.42 m = 41847.98 ft Wind level data Storm motion: 308 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 ---------------------------------------------------------- 0 970 314 0 0 -0.0 -0.0 | 128 12 -9.2 7.1 1 939 610 220 9 5.8 6.9 | 166 14 -3.5 14.0 2 925 741 230 8 6.1 5.1 | 166 13 -3.1 12.3 3 907 914 210 9 4.5 7.8 | 162 16 -4.7 14.9 4 876 1219 215 7 4.0 5.7 | 158 14 -5.2 12.9 5 850 1488 210 8 4.0 6.9 | 160 15 -5.2 14.0 6 817 1829 290 9 8.5 -3.1 | 169 4 -0.8 4.0 7 788 2134 320 11 7.1 -8.4 | 59 3 -2.2 -1.3 8 760 2438 315 12 8.5 -8.5 | 29 2 -0.8 -1.4 9 734 2743 305 13 10.6 -7.5 | 284 1 1.4 -0.3 10 700 3145 295 14 12.7 -5.9 | 251 4 3.4 1.2 11 657 3658 275 18 17.9 -1.6 | 237 10 8.7 5.5 12 609 4267 285 22 21.3 -5.7 | 263 12 12.0 1.4 13 565 4877 290 22 20.7 -7.5 | 272 11 11.4 -0.4 14 500 5860 265 23 22.9 2.0 | 236 16 13.7 9.1 15 485 6096 250 18 16.9 6.2 | 210 15 7.7 13.3 16 400 7590 260 32 31.5 5.6 | 240 26 22.3 12.7 17 398 7620 265 30 29.9 2.6 | 245 23 20.6 9.7 18 324 9144 265 41 40.8 3.6 | 251 33 31.6 10.7 19 300 9710 260 48 47.3 8.3 | 248 41 38.0 15.5 20 262 10668 265 49 48.8 4.3 | 254 41 39.6 11.4 21 250 10990 265 48 47.8 4.2 | 254 40 38.6 11.3 22 209 12192 250 45 42.3 15.4 | 236 40 33.0 22.5 23 200 12480 250 45 42.3 15.4 | 236 40 33.0 22.5 24 164 13716 270 39 39.0 -0.0 | 257 31 29.8 7.1 25 150 14280 275 22 21.9 -1.9 | 248 14 12.7 5.2 26 127 15240 295 13 11.8 -5.5 | 237 3 2.5 1.6 27 103 16459 165 7 -1.8 6.8 | 141 18 -11.1 13.9 28 100 16660 160 4 -1.4 3.8 | 136 15 -10.6 10.9 Wind Parameters Mean winds (0-6000m): 277.6 at 15.5 knts Storm direction: 307.6 at 11.7 knts Shear (0-3000m) pos: 2.6 neg: 2.5 tot: 5.1 10-3/s Storm rel Dir Shear (0-3000m): 119.1 deg Storm rel helicity (0-3000m) pos: 27.0 neg: -13.9 tot: 13.1 m^2/s^2 ave: 4.4 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 8.0 stream: -0.3 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 10.75 Bulk Shear: 22.43 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 ------------------------------------------------------------------------------- 500 223 6 156 13| 0.0 8.7 8.7| 14.6 -2.0 12.7 25.3 0.35| 16.9 5.9 1000 217 7 159 14| 0.0 3.8 3.8| 15.2 -8.8 6.4 6.4 0.20| 10.6 2.1 1500 224 7 162 13| 3.4 2.5 5.9| 27.0 -9.4 17.5 11.7 0.23| 11.1 2.5 2000 250 8 171 10| 3.9 1.9 5.8| 27.0 -11.8 15.2 7.6 0.07| 10.1 0.7 2500 271 9 179 7| 3.1 2.1 5.2| 27.0 -12.7 14.2 5.7 -0.01| 8.8 -0.0 3000 279 10 186 6| 2.6 2.5 5.1| 27.0 -13.9 13.1 4.4 -0.03| 8.0 -0.3 4000 280 12 210 6| 2.4 2.5 4.9| 41.4 -16.1 25.3 6.3 0.04| 7.3 0.3 5000 282 14 229 6| 2.1 2.4 4.4| 46.0 -28.1 17.9 3.6 0.00| 6.4 0.0 6000 278 16 231 8| 1.7 2.5 4.2| 52.4 -76.1 -23.7 -4.0 -0.13| 6.6 -0.9 Wrote GIF file: /home/apache/climate/data/raob//VTCC/skewt/VTCC.skewt.20250417.12.gif