UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025051100.upa.cvt Date: 0000Z 11 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 11 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 1006 4 25.0 24.0 94 1.0 24.3 0 0 297.6 301.1 297.3 352.8 19.00 1 925 742 22.6 19.8 84 2.8 20.6 130 5 302.4 305.3 296.5 349.4 15.91 2 907 913 21.0 19.4 91 1.6 19.9 130 5 302.5 305.4 296.5 349.3 15.83 3 887 1107 20.6 17.9 85 2.7 18.7 130 5 304.0 306.7 296.1 347.7 14.71 4 867 1305 21.6 14.6 64 7.0 16.9 130 5 307.0 309.3 295.2 343.6 12.14 5 850 1477 20.8 13.8 64 7.0 16.1 130 5 307.9 310.1 295.1 343.5 11.75 6 778 2236 15.0 11.4 79 3.6 12.7 42 4 309.6 311.7 295.0 343.0 10.95 7 726 2821 12.8 6.8 67 6.0 9.1 322 7 313.4 315.0 294.3 340.0 8.57 8 700 3127 10.8 6.0 72 4.8 7.9 290 9 314.4 316.1 294.5 340.7 8.41 9 634 3943 5.2 3.2 87 2.0 4.1 317.1 318.6 294.6 341.2 7.62 10 530 5384 -2.3 -2.3 100 0.0 -2.3 324.8 326.0 295.4 344.8 6.11 11 518 5565 -2.1 -4.0 87 1.9 -3.1 327.2 328.2 295.6 345.4 5.50 12 400 7577 -12.9 -15.8 79 2.9 -14.0 338.2 338.8 296.2 348.1 2.79 13 328 9057 -24.1 -24.1 100 0.0 -24.1 342.6 342.9 296.3 348.7 1.66 14 303 9632 -27.5 -31.5 69 4.0 -28.3 345.6 345.8 296.4 349.1 0.91 15 294 9848 -28.9 -33.7 63 4.8 -29.8 346.6 346.8 296.5 349.6 0.75 16 251 10958 -38.1 -41.4 71 3.3 -38.5 349.0 349.1 296.8 350.6 0.40 17 209 12190 -48.9 -55.9 44 7.0 -49.2 350.9 350.9 296.9 351.3 0.09 18 184 13013 -56.1 -60.0 61 3.9 -56.2 352.2 352.2 297.2 352.5 0.06 19 175 13330 -59.1 -65.1 46 6.0 -59.2 352.4 352.4 297.2 352.5 0.03 20 157 14002 -64.1 -70.1 44 6.0 -64.1 355.0 355.0 297.7 355.1 0.02 21 153 14160 -65.5 -70.0 53 4.5 -65.5 355.2 355.2 297.8 355.3 0.02 22 147 14402 -67.5 -74.5 36 7.0 -67.5 355.9 355.9 297.9 355.9 0.01 23 123 15454 -75.9 -80.9 45 5.0 -75.9 359.2 359.2 298.5 359.2 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5784.02 m Freezing level: 561.89 mb = 4941.72 m = 16212.78 ft Wetbulb zero: 567.84 mb = 4828.93 m = 15842.75 ft Precipitable water: 2.39 inches Sfc-500 mean rel hum: 82.76 % Est. max temperature: 34.99 C = 94.98 F Sfc-Lift cond lev (LCL): 991.91 mb = 127.97 m = 419.83 ft T: 24.60 C 700-500 lapse rate: 5.30 C/km ThetaE index: 12.79 C Layer 925.0- 700.0 mb Conv cond level (CCL): 830.03 mb = 1680.88 m = 5514.64 ft Mean mixing ratio: 17.14 g/kg Conv temperature: 35.77 C = 96.39 F Cap Strength: 2.95 C Lifted Index: -0.96 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.03 C Lifted Index @700 mb: -0.00 C Showalter Index: 1.79 C Risk: Showers probable Total Totals Index: 41.76 C Risk: None Vertical Totals Index: 24.38 C Cross Totals Index: 17.38 C K Index: 33.38 Risk: 60-80 % chance of thunderstorms Energy Index: 0.31 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 260.79 J/kg Max Up Vert Vel: 22.84 m/s Conv Inhibition (B-): 95.95 J/kg Cap Strength: 2.93 C Lift Cond Lev (LCL): 929.03 mb = 703.79 m = 2309.00 ft Lev Free Conv (LFC): 694.03 mb = 3197.55 m = 10490.52 ft Equ Level (EL): 294.03 mb = 9847.18 m = 32306.63 ft B at Equ Level: 260.11 J/kg Max Parcel Lev (MPL): 134.03 mb = 14946.95 m = 49037.94 ft Wind level data Storm motion: 154 at 3 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 1006 4 0 0 -0.0 -0.0 | 334 3 1.5 -3.0 1 1000 0 0 0 -0.0 -0.0 | 334 3 1.5 -3.0 2 968 305 245 2 1.8 0.8 | 303 4 3.3 -2.2 3 938 610 125 4 -3.3 2.3 | 68 2 -1.8 -0.7 4 925 742 130 5 -3.8 3.2 | 95 2 -2.3 0.2 5 907 914 130 5 -3.8 3.2 | 95 2 -2.3 0.2 6 850 1477 130 5 -3.8 3.2 | 95 2 -2.3 0.2 7 845 1524 130 5 -3.8 3.2 | 95 2 -2.3 0.2 8 787 2134 55 3 -2.5 -1.7 | 11 5 -1.0 -4.7 9 707 3048 290 8 7.5 -2.7 | 303 11 9.0 -5.7 10 700 3127 290 9 8.5 -3.1 | 301 12 10.0 -6.1 Wind Parameters Mean winds (0-6000m): 123.5 at 4.5 knts Storm direction: 153.5 at 3.4 knts Shear (0-3000m) pos: 0.6 neg: 1.7 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): -26.6 deg Storm rel helicity (0-3000m) pos: 0.5 neg: -32.0 tot: -31.5 m^2/s^2 ave: -10.5 10^-3 m/s^2 rel: -0.49 Storm rel vorticity (0-3000m) horiz: 5.1 stream: -2.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 84.06 Bulk Shear: 3.10 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 ------------------------------------------------------------------------------- 500 216 2 304 3| 3.4 0.0 3.4| 0.0 -3.6 -3.6 -7.2 -0.64| 6.9 -4.4 1000 141 3 41 1| 1.7 1.6 3.3| 0.5 -3.6 -3.1 -3.1 0.05| 6.0 0.3 1500 135 4 75 1| 1.1 1.1 2.2| 0.5 -3.6 -3.1 -2.1 0.05| 4.0 0.2 2000 127 4 69 2| 0.9 1.3 2.1| 0.5 -7.2 -6.7 -3.4 -0.22| 4.2 -0.9 2500 114 4 55 2| 0.7 1.7 2.4| 0.5 -12.5 -12.0 -4.8 -0.32| 4.4 -1.4 3000 115 4 64 3| 0.6 1.7 2.3| 0.5 -32.0 -31.5 -10.5 -0.49| 5.1 -2.5 4000 NO DATA | 0.6 1.7 2.3| | 5000 NO DATA | 0.6 1.7 2.3| | 6000 NO DATA | 0.6 1.7 2.3| | Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250511.00.gif