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 VTCC... Searching the city database file for: VTCC ... Date:0000Z 18 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 95 SFC 975 314 26.2 17.2 58 9.0 20.0 0 0 301.5 303.9 294.1 339.1 12.76 2 973 332 24.8 17.8 65 7.0 20.0 354 0 300.3 302.7 294.1 339.2 13.29 3 926 771 24.6 15.6 57 9.0 18.5 4 4 304.4 306.6 294.4 340.5 12.12 4 925 781 24.6 15.6 57 9.0 18.5 10 4 304.5 306.7 294.5 340.7 12.14 5 850 1516 19.0 12.0 64 7.0 14.4 290 13 306.0 308.0 293.7 337.4 10.42 6 846 1557 18.6 12.6 68 6.0 14.7 292 13 306.0 308.1 294.0 338.8 10.90 7 746 2626 12.2 7.4 72 4.8 9.3 258 10 310.3 311.9 293.6 337.0 8.69 8 725 2866 12.0 4.0 58 8.0 7.3 249 12 312.6 314.0 292.9 334.6 7.05 9 700 3160 10.2 3.2 62 7.0 6.2 245 13 313.8 315.1 293.2 335.4 6.90 10 644 3848 5.0 -1.0 65 6.0 1.8 246 16 315.5 316.5 292.5 333.0 5.53 11 581 4684 1.2 -11.8 37 13.0 -4.3 237 25 320.4 321.0 291.5 329.3 2.66 12 575 4768 0.8 -10.2 44 11.0 -4.0 234 26 320.9 321.5 292.0 331.1 3.06 13 538 5299 -3.3 -7.9 70 4.6 -5.4 236 27 322.2 323.0 293.1 335.1 3.92 14 536 5329 -3.7 -10.7 58 7.0 -6.7 237 27 322.1 322.7 292.4 332.5 3.16 15 525 5493 -1.9 -13.9 39 12.0 -6.8 239 27 326.1 326.6 293.0 334.6 2.49 16 524 5509 -2.1 -14.1 39 12.0 -7.0 239 27 326.1 326.6 292.9 334.4 2.45 17 500 5880 -4.9 -15.9 42 11.0 -9.1 245 27 327.1 327.5 293.0 334.7 2.21 18 400 7590 -17.1 -31.1 29 14.0 -20.2 260 36 332.8 332.9 293.2 335.4 0.71 19 395 7684 -17.9 -29.9 34 12.0 -20.6 255 39 332.9 333.1 293.3 335.9 0.81 20 373 8110 -20.3 -32.3 33 12.0 -22.8 255 40 335.2 335.4 293.8 337.8 0.68 21 362 8332 -20.3 -46.3 8 26.0 -23.9 255 41 338.1 338.2 294.0 338.8 0.17 22 325 9123 -24.3 -50.3 7 26.0 -27.3 255 43 343.2 343.2 295.2 343.7 0.12 23 300 9700 -29.7 -51.7 10 22.0 -31.7 250 43 343.5 343.5 295.3 344.0 0.11 24 250 10970 -39.9 -58.9 11 19.0 -40.9 260 40 346.7 346.8 296.0 347.0 0.05 25 207 12236 -50.7 -66.7 13 16.0 -51.1 256 38 349.0 349.0 296.4 349.1 0.02 26 200 12460 -52.1 -70.1 10 18.0 -52.5 260 39 350.3 350.3 296.7 350.3 0.02 27 150 14260 -65.7 -78.7 15 13.0 -65.8 285 27 356.9 356.9 298.1 356.9 0.01 28 144 14507 -67.7 -80.7 14 13.0 -67.8 273 23 357.6 357.6 298.2 357.6 0.00 29 113 15933 -77.5 -92.5 7 15.0 -77.5 252 10 365.0 365.0 299.7 365.0 0.00 30 100 16630 -79.7 -94.7 7 15.0 -79.7 270 13 373.7 373.7 301.2 373.7 0.00 31 93 17037 -82.9 -95.9 9 13.0 -82.9 290 9 375.3 375.3 301.5 375.3 0.00 32 78 18023 -79.7 -94.7 7 15.0 -79.7 203 10 401.3 401.3 305.4 401.3 0.00 33 70 18630 -82.5 -94.5 11 12.0 -82.5 250 11 407.9 407.9 306.2 407.9 0.00 34 69 18711 -82.5 -94.5 11 12.0 -82.5 257 11 409.6 409.6 306.5 409.6 0.00 35 64 19137 -77.7 -94.7 5 17.0 -77.7 294 12 429.0 429.0 308.7 429.0 0.00 36 60 19507 -77.1 -97.1 3 20.0 -77.1 326 13 438.3 438.3 309.7 438.3 0.00 37 56 19910 -70.9 -97.9 1 27.0 -71.0 4 13 461.2 461.2 311.9 461.2 0.00 38 50 20590 -66.5 -95.5 1 29.0 -66.8 85 14 486.8 486.8 314.0 486.8 0.00 39 39 22128 -57.3 -89.3 1 32.0 -58.3 132 10 545.9 545.9 317.9 545.9 0.00 40 30 23800 -53.9 -86.9 1 33.0 -55.7 90 28 597.7 597.7 320.5 597.7 0.01 41 25 24975 -52.5 -85.5 1 33.0 -54.9 633.7 633.7 322.0 633.8 0.01 42 23 25512 -54.1 -87.1 1 33.0 -56.3 644.3 644.3 322.4 644.4 0.01 TRP 93 17037 -82.9 -95.9 9 13.0 -82.9 290 9 375.3 375.3 301.5 375.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5785.00 m Freezing level: 567.78 mb = 4871.48 m = 15982.34 ft Wetbulb zero: 625.02 mb = 4091.19 m = 13422.38 ft Precipitable water: 1.54 inches Sfc-500 mean rel hum: 59.07 % Est. max temperature: 31.54 C = 88.76 F Sfc-Lift cond lev (LCL): 854.90 mb = 1466.00 m = 4809.64 ft T: 19.38 C 700-500 lapse rate: 5.55 C/km ThetaE index: 4.24 C Layer 746.0- 700.0 mb Conv cond level (CCL): 747.56 mb = 2608.48 m = 8557.91 ft Mean mixing ratio: 12.12 g/kg Conv temperature: 34.84 C = 94.71 F Cap Strength: 3.25 C Lifted Index: 1.99 C Risk: Showers probable Lifted Index @300 mb: 4.56 C Lifted Index @700 mb: 2.62 C Showalter Index: 2.99 C Risk: Showers probable Total Totals Index: 40.80 C Risk: None Vertical Totals Index: 23.90 C Cross Totals Index: 16.90 C K Index: 28.90 Risk: 40-60 % chance of thunderstorms Sweat Index: 197.00 Risk: None Energy Index: -0.48 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.22 J/kg Max Up Vert Vel: 6.51 m/s Conv Inhibition (B-): 22413.37 J/kg Cap Strength: 3.25 C Lift Cond Lev (LCL): 819.48 mb = 1827.47 m = 5995.56 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 283 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 ---------------------------------------------------------- 0 975 314 0 0 -0.0 -0.0 | 103 12 -12.2 2.7 1 943 610 255 4 3.9 1.0 | 114 9 -8.3 3.8 2 925 781 10 4 -0.7 -3.9 | 85 13 -12.9 -1.2 3 911 914 290 10 9.4 -3.4 | 76 3 -2.8 -0.7 4 880 1219 290 13 12.2 -4.4 | 359 2 0.0 -1.7 5 850 1516 290 13 12.2 -4.4 | 359 2 0.0 -1.7 6 819 1829 305 14 11.5 -8.0 | 8 5 -0.7 -5.3 7 790 2134 285 8 7.7 -2.1 | 99 4 -4.4 0.7 8 762 2438 270 7 7.0 -0.0 | 118 6 -5.2 2.7 9 735 2743 250 12 11.3 4.1 | 173 7 -0.9 6.8 10 700 3160 245 13 11.8 5.5 | 177 8 -0.4 8.2 11 658 3658 245 14 12.7 5.9 | 183 9 0.5 8.7 12 610 4267 250 21 19.7 7.2 | 217 12 7.6 9.9 13 566 4877 230 27 20.7 17.4 | 203 22 8.5 20.1 14 500 5880 245 27 24.5 11.4 | 221 19 12.3 14.2 15 486 6096 265 27 26.9 2.4 | 251 16 14.7 5.1 16 400 7590 260 36 35.5 6.3 | 249 25 23.3 9.0 17 398 7620 255 39 37.7 10.1 | 243 29 25.5 12.8 18 324 9144 255 43 41.5 11.1 | 245 32 29.4 13.9 19 300 9700 250 43 40.4 14.7 | 238 33 28.2 17.4 20 261 10668 260 44 43.3 7.6 | 252 33 31.2 10.4 21 250 10970 260 40 39.4 6.9 | 250 29 27.2 9.7 22 208 12192 255 38 36.7 9.8 | 243 28 24.5 12.6 23 200 12460 260 39 38.4 6.8 | 250 28 26.2 9.5 24 164 13716 275 28 27.9 -2.4 | 269 16 15.7 0.3 25 150 14260 285 27 26.1 -7.0 | 287 15 13.9 -4.2 26 127 15240 235 9 7.4 5.2 | 149 9 -4.8 7.9 27 103 16459 265 11 11.0 1.0 | 162 4 -1.2 3.7 28 100 16630 270 13 13.0 -0.0 | 197 3 0.8 2.7 29 93 17037 290 9 8.5 -3.1 | 85 4 -3.7 -0.3 30 74 18288 180 10 0.0 10.0 | 136 18 -12.2 12.7 31 70 18630 250 11 10.3 3.8 | 164 7 -1.8 6.5 32 57 19812 350 13 2.3 -12.8 | 45 14 -9.9 -10.1 33 50 20590 85 14 -13.9 -1.2 | 93 26 -26.1 1.5 34 44 21336 145 8 -4.6 6.6 | 119 19 -16.8 9.3 35 35 22860 120 11 -9.5 5.5 | 111 23 -21.7 8.2 36 30 23800 90 28 -28.0 0.0 | 94 40 -40.2 2.7 37 26 24384 95 22 -21.9 1.9 | 98 34 -34.1 4.7 Wind Parameters Mean winds (0-6000m): 252.7 at 16.6 knts Storm direction: 282.7 at 12.5 knts Shear (0-3000m) pos: 0.6 neg: 2.7 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 76.5 deg Storm rel helicity (0-3000m) pos: 24.0 neg: -20.3 tot: 3.7 m^2/s^2 ave: 1.2 10^-3 m/s^2 rel: 0.15 Storm rel vorticity (0-3000m) horiz: 7.6 stream: 1.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.78 Bulk Shear: 27.24 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 ------------------------------------------------------------------------------- 500 287 3 102 10| 0.0 5.6 5.6| 6.5 -18.9 -12.4 -24.8 -0.38| 12.7 -4.8 1000 291 7 93 6| 0.0 6.7 6.7| 6.5 -20.3 -13.8 -13.8 -0.31| 12.4 -3.8 1500 293 9 78 4| 1.2 4.5 5.7| 6.9 -20.3 -13.3 -8.9 -0.25| 9.4 -2.3 2000 293 9 76 4| 0.9 2.2 3.1| 13.5 -20.3 -6.8 -3.4 0.00| 9.2 0.0 2500 286 9 93 3| 0.7 2.9 3.7| 22.3 -20.3 2.1 0.8 0.14| 8.8 1.2 3000 277 10 123 3| 0.6 2.7 3.3| 24.0 -20.3 3.7 1.2 0.15| 7.6 1.2 4000 266 12 170 4| 0.9 2.0 2.9| 41.0 -20.3 20.8 5.2 0.25| 6.8 1.7 5000 254 14 194 7| 1.0 2.3 3.2| 55.1 -38.1 16.9 3.4 0.18| 6.7 1.2 6000 253 17 206 9| 1.8 1.9 3.7|113.6 -38.3 75.3 12.5 0.31| 6.8 2.1 Wrote GIF file: /home/apache/climate/data/raob//VTCC/skewt/VTCC.skewt.20250418.00.gif