UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025053012.upa.cvt Date: 1200Z 30 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:1200Z 30 MAY 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 29.4 26.4 84 3.0 27.1 170 4 301.9 306.0 300.1 367.2 21.99 1 1000 67 28.4 25.5 84 2.9 26.2 180 9 301.5 305.4 299.4 363.6 20.96 2 946 560 24.0 23.7 98 0.3 23.8 220 15 301.9 305.6 298.8 360.7 19.87 3 925 757 23.4 22.3 94 1.1 22.6 235 19 303.2 306.7 298.4 358.6 18.63 4 850 1493 18.8 17.3 91 1.5 17.8 250 13 305.8 308.6 296.7 350.1 14.78 5 838 1615 18.4 16.8 90 1.6 17.3 251 13 306.7 309.4 296.7 350.3 14.52 6 793 2088 15.8 14.7 93 1.1 15.1 255 10 308.8 311.3 296.5 349.4 13.39 7 774 2294 15.0 13.0 88 2.0 13.7 255 10 310.1 312.4 296.1 347.4 12.26 8 747 2596 15.8 6.8 55 9.0 10.3 255 9 314.1 315.7 294.3 340.1 8.33 9 712 3004 13.6 2.6 47 11.0 7.2 255 9 316.0 317.3 293.4 336.5 6.49 10 700 3147 12.4 3.4 54 9.0 7.1 255 9 316.2 317.6 293.9 338.3 7.00 11 612 4257 3.6 2.7 94 0.9 3.1 281 12 318.5 320.0 295.0 342.7 7.62 12 545 5192 -0.5 -0.5 100 0.0 -0.5 342 13 324.3 325.7 295.8 346.5 6.79 13 500 5880 -2.1 -6.2 73 4.1 -4.1 65 9 330.5 331.4 295.9 346.7 4.82 14 498 5912 -2.1 -6.6 71 4.5 -4.3 66 9 330.9 331.8 295.9 346.7 4.69 15 455 6624 -8.3 -8.3 100 0.0 -8.3 80 10 331.7 332.7 296.0 347.0 4.50 16 416 7318 -10.9 -13.6 80 2.7 -12.0 87 12 337.0 337.7 296.3 348.3 3.22 17 400 7620 -12.3 -15.8 75 3.5 -13.7 90 13 339.0 339.6 296.4 348.9 2.79 18 359 8440 -17.3 -22.2 66 4.9 -18.8 101 17 342.9 343.3 296.5 349.5 1.80 19 328 9111 -23.1 -25.2 83 2.1 -23.7 109 21 343.9 344.3 296.5 349.5 1.51 20 300 9760 -27.5 -31.7 67 4.2 -28.3 75 22 346.6 346.8 296.7 350.1 0.90 21 292 9953 -29.1 -33.7 64 4.6 -29.9 74 26 347.0 347.2 296.6 350.0 0.76 22 282 10199 -31.1 -32.6 87 1.5 -31.4 73 31 347.6 347.8 296.8 351.0 0.88 23 277 10326 -31.3 -38.3 50 7.0 -32.3 72 33 349.1 349.2 296.9 351.2 0.51 24 250 11040 -36.9 -50.9 22 14.0 -38.0 70 44 351.2 351.2 297.0 351.8 0.14 25 244 11207 -37.9 -53.9 17 16.0 -39.0 71 44 352.2 352.2 297.2 352.6 0.10 26 238 11378 -39.5 -56.5 15 17.0 -40.5 71 45 352.3 352.3 297.2 352.6 0.08 27 216 12032 -45.5 -53.5 40 8.0 -45.9 74 47 352.9 352.9 297.4 353.4 0.12 28 200 12540 -49.5 -58.5 34 9.0 -49.8 75 53 354.4 354.4 297.6 354.7 0.07 29 188 12943 -52.5 -64.5 22 12.0 -52.8 72 53 355.9 355.9 297.9 356.0 0.03 30 176 13365 -56.7 -61.4 55 4.7 -56.8 68 52 355.7 355.8 297.9 356.0 0.06 31 167 13697 -59.3 -72.3 17 13.0 -59.5 65 52 356.8 356.8 298.1 356.8 0.01 32 150 14360 -65.3 -71.3 43 6.0 -65.4 70 56 357.6 357.6 298.2 357.7 0.02 33 144 14608 -67.3 -73.3 42 6.0 -67.4 66 56 358.3 358.3 298.4 358.4 0.01 34 121 15638 -75.3 -80.5 44 5.2 -75.4 45 62 361.9 361.9 299.1 361.9 0.01 35 116 15881 -77.3 -82.3 44 5.0 -77.3 49 62 362.7 362.7 299.2 362.7 0.00 36 100 16730 -78.9 -84.9 37 6.0 -78.9 75 58 375.3 375.3 301.5 375.3 0.00 37 93 17140 -81.7 -86.7 42 5.0 -81.7 77 48 377.6 377.6 301.9 377.6 0.00 38 86 17579 -81.1 -87.1 36 6.0 -81.1 79 37 387.4 387.4 303.4 387.4 0.00 TRP WND 121 15638 -75.3 -80.5 44 5.2 -75.4 45 62 361.9 361.9 299.1 361.9 0.01 Sounding variables and indices 1000-500 mb thick: 5813.00 m Freezing level: 553.17 mb = 5078.03 m = 16660.00 ft Wetbulb zero: 554.51 mb = 5052.47 m = 16576.16 ft Precipitable water: 2.59 inches Sfc-500 mean rel hum: 83.79 % Est. max temperature: 33.05 C = 91.49 F Sfc-Lift cond lev (LCL): 964.80 mb = 384.94 m = 1262.90 ft T: 25.56 C 700-500 lapse rate: 5.31 C/km ThetaE index: 17.06 C Layer 1000.0- 838.0 mb Conv cond level (CCL): 922.95 mb = 776.32 m = 2546.95 ft Mean mixing ratio: 19.81 g/kg Conv temperature: 30.76 C = 87.37 F Cap Strength: 0.29 C Lifted Index: -2.76 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -4.73 C Lifted Index @700 mb: -0.98 C Showalter Index: 0.81 C Risk: Thunderstorms probable Total Totals Index: 40.30 C Risk: None Vertical Totals Index: 20.90 C Cross Totals Index: 19.40 C K Index: 29.20 Risk: 40-60 % chance of thunderstorms Sweat Index: 242.60 Risk: None Energy Index: -0.75 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1785.66 J/kg Max Up Vert Vel: 59.76 m/s Conv Inhibition (B-): 1.36 J/kg Cap Strength: 0.25 C Lift Cond Lev (LCL): 937.47 mb = 639.22 m = 2097.14 ft Lev Free Conv (LFC): 902.47 mb = 971.63 m = 3187.72 ft Equ Level (EL): 742.47 mb = 2648.07 m = 8687.77 ft B at Equ Level: 79.58 J/kg Wind level data Storm motion: 292 at 9 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 4 170 4 -0.7 3.9 | 129 12 -9.1 7.4 1 1000 67 180 9 0.0 9.0 | 146 15 -8.4 12.5 2 973 305 195 12 3.1 11.6 | 161 16 -5.3 15.1 3 941 610 225 16 11.3 11.3 | 191 15 2.9 14.8 4 925 757 235 19 15.6 10.9 | 206 16 7.1 14.4 5 908 914 240 22 19.1 11.0 | 216 18 10.6 14.5 6 850 1493 250 13 12.2 4.4 | 206 9 3.8 7.9 7 847 1524 250 13 12.2 4.4 | 206 9 3.8 7.9 8 788 2134 255 10 9.7 2.6 | 191 6 1.2 6.1 9 708 3048 255 9 8.7 2.3 | 183 6 0.3 5.8 10 700 3147 255 9 8.7 2.3 | 183 6 0.3 5.8 11 657 3658 265 13 13.0 1.1 | 224 6 4.5 4.6 12 587 4572 290 11 10.3 -3.8 | 279 2 1.9 -0.3 13 566 4877 305 13 10.6 -7.5 | 331 5 2.2 -4.0 14 525 5486 20 12 -4.1 -11.3 | 58 15 -12.5 -7.8 15 500 5880 65 9 -8.2 -3.8 | 89 17 -16.6 -0.3 16 486 6096 75 8 -7.7 -2.1 | 95 16 -16.2 1.4 17 400 7620 90 13 -13.0 0.0 | 99 22 -21.4 3.5 18 400 7620 90 13 -13.0 0.0 | 99 22 -21.4 3.5 19 326 9144 110 21 -19.7 7.2 | 111 30 -28.2 10.7 20 300 9760 75 22 -21.3 -5.7 | 86 30 -29.7 -2.2 21 264 10668 70 40 -37.6 -13.7 | 77 47 -46.0 -10.2 22 250 11040 70 44 -41.3 -15.0 | 77 51 -49.8 -11.6 23 211 12192 75 47 -45.4 -12.2 | 81 55 -53.8 -8.7 24 200 12540 75 53 -51.2 -13.7 | 80 61 -59.6 -10.2 25 166 13716 65 52 -47.1 -22.0 | 72 59 -55.6 -18.5 26 150 14360 70 56 -52.6 -19.2 | 76 63 -61.1 -15.7 27 129 15240 55 56 -45.9 -32.1 | 62 61 -54.3 -28.6 28 121 15638 45 62 -43.8 -43.8 | 52 66 -52.3 -40.4 29 105 16459 60 61 -52.8 -30.5 | 66 67 -61.3 -27.0 30 100 16730 75 58 -56.0 -15.0 | 80 65 -64.5 -11.5 31 84 17678 80 34 -33.5 -5.9 | 87 42 -41.9 -2.4 Wind Parameters Mean winds (0-6000m): 262.4 at 12.2 knts Storm direction: 292.4 at 9.1 knts Shear (0-3000m) pos: 1.7 neg: 0.1 tot: 1.8 10-3/s Storm rel Dir Shear (0-3000m): 53.9 deg Storm rel helicity (0-3000m) pos: 93.5 neg: -11.1 tot: 82.5 m^2/s^2 ave: 27.5 10^-3 m/s^2 rel: 0.48 Storm rel vorticity (0-3000m) horiz: 6.6 stream: 3.2 10^-3/s Energy-Hel index: 1.04 Bulk Rich Number: 82.50 Bulk Shear: 21.65 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 ------------------------------------------------------------------------------- 500 196 11 159 15| 12.4 0.0 12.4| 51.1 0.0 51.1 102.3 0.91| 14.8 13.5 1000 220 15 184 15| 10.1 0.0 10.1| 93.5 0.0 93.5 93.5 0.88| 13.6 11.9 1500 229 16 194 14| 4.4 0.0 4.4| 93.5 -6.2 87.3 58.2 0.62| 11.8 7.3 2000 234 15 196 12| 2.8 0.0 2.8| 93.5 -8.9 84.6 42.3 0.54| 9.5 5.1 2500 237 14 196 11| 2.1 0.0 2.1| 93.5 -10.3 83.3 33.3 0.50| 7.8 3.9 3000 240 13 195 10| 1.7 0.1 1.8| 93.5 -11.1 82.5 27.5 0.48| 6.6 3.2 4000 245 12 199 9| 1.8 0.1 1.9|102.0 -11.1 90.9 22.7 0.53| 5.8 3.1 5000 254 12 207 8| 1.7 0.1 1.8|109.8 -11.1 98.7 19.7 0.57| 5.7 3.3 6000 262 12 215 6| 0.8 0.0 0.9|177.5 -11.1 166.4 27.7 0.65| 6.7 4.4 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250530.12.gif