UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025060412.upa.cvt Date: 1200Z 4 JUN 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:1200Z 4 JUN 25 Station: VTBC WMO ident: 48480 Latitude: 12.60 Longitude: 102.12 Elevation: 4.00 ------------------------------------------------------------------------------- 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 1007 4 24.0 22.0 89 2.0 22.6 20 5 296.6 299.6 295.5 344.9 16.75 1 1000 66 22.8 22.4 98 0.4 22.5 45 3 296.0 299.1 295.7 345.8 17.30 2 997 92 22.6 22.3 98 0.3 22.4 63 3 296.0 299.1 295.7 345.7 17.25 3 961 416 25.6 24.0 91 1.6 24.5 215 5 302.2 305.8 298.9 361.2 19.91 4 925 753 23.8 21.7 88 2.1 22.3 235 7 303.6 307.0 298.1 357.0 17.94 5 850 1491 19.8 16.1 79 3.7 17.2 295 7 306.9 309.4 296.2 348.0 13.67 6 846 1532 19.8 13.8 68 6.0 15.8 295 7 307.3 309.5 295.0 342.9 11.81 7 728 2810 11.4 9.5 88 1.9 10.2 283 10 311.6 313.5 295.1 343.3 10.30 8 700 3138 10.4 5.8 73 4.6 7.6 275 10 314.0 315.6 294.3 339.9 8.29 9 670 3502 8.2 4.3 76 3.9 5.9 299 10 315.5 317.0 294.3 340.0 7.80 10 627 4050 7.2 1.2 66 6.0 3.8 285 8 320.4 321.7 294.8 341.8 6.67 11 622 4116 9.0 0.0 53 9.0 3.9 281 8 323.2 324.4 295.1 343.2 6.16 12 584 4634 3.6 -0.4 75 4.0 1.4 249 5 322.8 324.0 295.1 343.5 6.38 13 518 5599 -2.7 -3.4 95 0.7 -3.1 275 7 326.4 327.6 295.6 345.4 5.76 14 501 5864 -3.5 -5.7 85 2.2 -4.6 313 9 328.6 329.6 295.6 345.3 5.00 15 500 5880 -3.7 -5.8 85 2.1 -4.7 315 9 328.5 329.5 295.6 345.1 4.97 16 403 7553 -13.7 -14.6 93 0.9 -14.0 32 10 336.5 337.1 296.0 347.2 3.06 17 400 7610 -14.1 -15.1 92 1.0 -14.5 35 10 336.7 337.3 296.0 347.1 2.96 18 341 8805 -20.5 -22.8 82 2.3 -21.2 94 19 343.7 344.1 296.7 350.3 1.79 19 300 9740 -27.5 -29.5 83 2.0 -27.9 125 16 346.6 346.9 296.8 350.8 1.11 20 274 10388 -32.5 -34.7 81 2.2 -32.9 125 17 348.5 348.6 296.9 351.4 0.73 21 250 11030 -37.9 -41.3 70 3.4 -38.3 150 18 349.7 349.8 296.9 351.4 0.41 22 200 12520 -50.7 -54.9 61 4.2 -50.9 155 50 352.5 352.5 297.3 353.0 0.11 23 181 13162 -56.9 -61.2 58 4.3 -57.0 147 97 352.6 352.6 297.3 352.8 0.06 24 150 14330 -64.9 -71.9 37 7.0 -65.0 100 114 358.3 358.3 298.4 358.3 0.02 25 123 15512 -74.3 -80.3 39 6.0 -74.3 99 115 362.1 362.1 299.1 362.1 0.01 26 110 16161 -75.1 -84.1 23 9.0 -75.1 110 110 372.3 372.3 300.9 372.4 0.00 27 101 16653 -77.5 -84.5 32 7.0 -77.5 130 83 376.9 376.9 301.8 376.9 0.00 28 100 16710 -76.7 -83.7 32 7.0 -76.7 135 76 379.5 379.5 302.2 379.6 0.00 29 89 17372 -80.7 -85.7 43 5.0 -80.7 125 45 384.4 384.4 302.9 384.4 0.00 30 83 17768 -77.7 -86.7 22 9.0 -77.7 103 50 398.3 398.3 305.0 398.3 0.00 31 75 18342 -81.1 -88.1 30 7.0 -81.1 77 58 402.9 402.9 305.6 402.9 0.00 32 70 18730 -80.1 -89.1 21 9.0 -80.1 90 62 413.0 413.0 306.9 413.0 0.00 33 66 19066 -76.1 -90.1 9 14.0 -76.2 86 83 428.7 428.7 308.7 428.7 0.00 34 65 19155 -73.8 -90.1 6 16.3 -73.9 85 89 435.6 435.6 309.4 435.6 0.00 35 63 19339 -69.1 -90.1 3 21.0 -69.2 87 81 449.9 449.9 310.8 449.9 0.00 36 60 19631 -69.3 -91.3 3 22.0 -69.4 91 69 455.8 455.8 311.4 455.8 0.00 TRP 89 17372 -80.7 -85.7 43 5.0 -80.7 125 45 384.4 384.4 302.9 384.4 0.00 WND 65 19155 -73.8 -90.1 6 16.3 -73.9 85 89 435.6 435.6 309.4 435.6 0.00 Sounding variables and indices 1000-500 mb thick: 5814.00 m Freezing level: 546.29 mb = 5185.79 m = 17013.55 ft Wetbulb zero: 563.73 mb = 4918.63 m = 16137.05 ft Precipitable water: 2.48 inches Sfc-500 mean rel hum: 80.02 % Est. max temperature: 34.04 C = 93.27 F Sfc-Lift cond lev (LCL): 978.40 mb = 258.18 m = 847.04 ft T: 24.14 C 700-500 lapse rate: 5.14 C/km ThetaE index: 18.22 C Layer 925.0- 728.0 mb Conv cond level (CCL): 1000.00 mb = 66.00 m = 216.53 ft Mean mixing ratio: 18.34 g/kg Conv temperature: 23.96 C = 75.13 F Cap Strength: 2.04 C Lifted Index: -2.55 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.86 C Lifted Index @700 mb: -1.57 C Showalter Index: -0.03 C Risk: Thunderstorms probable Total Totals Index: 43.30 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 19.80 C K Index: 35.00 Risk: > 80 % chance of thunderstorms Sweat Index: 216.20 Risk: None Energy Index: -0.62 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 856.96 J/kg Max Up Vert Vel: 41.40 m/s Conv Inhibition (B-): 60.43 J/kg Cap Strength: 2.04 C Lift Cond Lev (LCL): 935.59 mb = 652.58 m = 2141.00 ft Lev Free Conv (LFC): 800.59 mb = 2001.15 m = 6565.37 ft Equ Level (EL): 620.59 mb = 4135.02 m = 13566.16 ft B at Equ Level: 133.48 J/kg Max Parcel Lev (MPL): 90.59 mb = 17271.43 m = 56664.12 ft Wind level data Storm motion: 309 at 6 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 1007 4 20 5 -1.7 -4.7 | 80 6 -6.2 -1.0 1 1000 66 45 3 -2.1 -2.1 | 103 7 -6.6 1.5 2 973 305 210 4 2.0 3.5 | 161 8 -2.5 7.1 3 940 610 225 8 5.7 5.7 | 187 9 1.2 9.3 4 925 753 235 7 5.7 4.0 | 189 8 1.2 7.7 5 908 914 255 6 5.8 1.6 | 194 5 1.3 5.2 6 850 1491 295 7 6.3 -3.0 | 250 2 1.9 0.7 7 847 1524 295 7 6.3 -3.0 | 250 2 1.9 0.7 8 788 2134 290 10 9.4 -3.4 | 267 5 4.9 0.2 9 707 3048 280 10 9.8 -1.7 | 250 6 5.4 1.9 10 700 3138 275 10 10.0 -0.9 | 243 6 5.5 2.8 11 657 3658 310 10 7.7 -6.4 | 311 4 3.2 -2.8 12 587 4572 250 5 4.7 1.7 | 182 5 0.2 5.4 13 566 4877 240 7 6.1 3.5 | 192 7 1.6 7.1 14 525 5486 260 6 5.9 1.0 | 197 5 1.4 4.7 15 500 5880 315 9 6.4 -6.4 | 325 3 1.9 -2.7 16 486 6096 320 10 6.4 -7.7 | 334 4 1.9 -4.0 17 400 7610 35 10 -5.7 -8.2 | 66 11 -10.2 -4.5 18 399 7620 25 10 -4.2 -9.1 | 58 10 -8.7 -5.4 19 325 9144 115 22 -19.9 9.3 | 118 28 -24.4 12.9 20 300 9740 125 16 -13.1 9.2 | 126 22 -17.6 12.8 21 263 10668 125 18 -14.7 10.3 | 126 24 -19.2 14.0 22 250 11030 150 18 -9.0 15.6 | 145 23 -13.5 19.2 23 210 12192 150 44 -22.0 38.1 | 148 49 -26.5 41.8 24 200 12520 155 50 -21.1 45.3 | 152 55 -25.6 49.0 25 165 13716 140 139 -89.3 106.5 | 140 145 -93.8 110.1 26 150 14330 100 114 -112.3 19.8 | 101 119 -116.8 23.4 27 128 15240 95 117 -116.6 10.2 | 97 122 -121.0 13.8 28 104 16459 115 107 -97.0 45.2 | 116 113 -101.5 48.9 29 100 16710 135 76 -53.7 53.7 | 135 82 -58.2 57.4 30 89 17372 125 45 -36.9 25.8 | 125 51 -41.4 29.5 31 76 18288 75 57 -55.1 -14.8 | 79 61 -59.5 -11.1 32 70 18730 90 62 -62.0 0.0 | 93 67 -66.5 3.6 33 65 19155 85 89 -88.7 -7.8 | 87 93 -93.2 -4.1 34 57 19812 95 55 -54.8 4.8 | 98 60 -59.3 8.4 Wind Parameters Mean winds (0-6000m): 279.1 at 7.7 knts Storm direction: 309.1 at 5.8 knts Shear (0-3000m) pos: 1.4 neg: 2.5 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 170.7 deg Storm rel helicity (0-3000m) pos: 37.0 neg: -2.0 tot: 35.0 m^2/s^2 ave: 11.7 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 5.1 stream: 3.2 10^-3/s Energy-Hel index: 0.20 Bulk Rich Number: 122.53 Bulk Shear: 6.99 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 ------------------------------------------------------------------------------- 500 211 4 163 8| 0.0 11.8 11.8| 28.3 0.0 28.3 56.5 0.92| 15.4 14.1 1000 232 6 179 7| 2.3 5.9 8.2| 34.0 0.0 34.0 34.0 0.78| 10.9 8.5 1500 252 6 192 6| 2.9 3.9 6.8| 36.3 0.0 36.3 24.2 0.76| 8.6 6.6 2000 268 6 207 4| 2.1 3.2 5.4| 36.9 0.0 36.9 18.5 0.72| 7.1 5.1 2500 275 7 221 4| 1.7 2.8 4.5| 37.0 -0.8 36.2 14.5 0.67| 5.9 4.0 3000 277 8 229 4| 1.4 2.5 3.9| 37.0 -2.0 35.0 11.7 0.62| 5.1 3.2 4000 282 8 241 4| 1.4 2.0 3.5| 43.3 -6.1 37.2 9.3 0.50| 5.1 2.5 5000 279 8 233 4| 1.2 2.1 3.2| 45.1 -11.4 33.7 6.7 0.34| 4.8 1.6 6000 279 8 232 4| 1.8 1.7 3.5| 52.0 -11.4 40.6 6.8 0.41| 4.9 2.0 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250604.12.gif