UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050912.upa.cvt Date: 1200Z 9 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:1200Z 9 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 1005 4 31.0 26.1 75 4.9 27.3 200 5 303.7 307.7 300.3 368.4 21.64 1 1000 47 30.4 25.4 75 5.0 26.6 205 7 303.5 307.4 299.8 365.7 20.84 2 926 731 24.4 23.0 92 1.4 23.4 205 19 304.2 307.8 299.1 362.2 19.44 3 925 741 24.4 22.8 91 1.6 23.2 205 19 304.3 307.8 299.0 361.7 19.22 4 911 875 23.6 20.6 83 3.0 21.5 205 19 304.8 307.9 297.8 355.5 17.00 5 899 991 24.6 17.6 65 7.0 19.7 204 18 307.0 309.6 296.6 349.8 14.23 6 850 1482 21.4 16.9 76 4.5 18.2 200 8 308.6 311.3 297.1 352.2 14.40 7 807 1931 18.2 15.8 86 2.4 16.5 177 6 309.8 312.4 297.3 352.8 14.13 8 745 2615 15.6 7.6 59 8.0 10.6 162 4 314.1 315.8 294.7 341.6 8.83 9 718 2928 14.4 5.4 55 9.0 8.9 161 3 316.1 317.6 294.5 340.9 7.86 10 700 3143 12.8 5.8 62 7.0 8.5 135 3 316.7 318.3 295.0 342.8 8.29 11 688 3288 11.6 5.6 67 6.0 7.9 130 3 316.9 318.5 295.1 343.1 8.32 12 684 3336 11.0 9.8 92 1.2 10.2 128 3 316.8 318.9 297.0 351.9 11.20 13 677 3422 11.2 2.2 54 9.0 6.0 124 3 317.9 319.2 294.1 339.0 6.64 14 674 3459 11.0 8.8 86 2.2 9.6 123 3 318.1 320.1 297.0 351.6 10.62 15 668 3534 11.0 2.0 54 9.0 5.8 120 3 318.9 320.2 294.3 340.1 6.63 16 626 4072 7.4 1.4 66 6.0 3.9 108 3 320.8 322.1 295.0 342.6 6.78 17 605 4352 6.4 -6.6 39 13.0 0.0 104 4 322.8 323.5 293.2 335.5 3.86 18 581 4682 4.0 -4.0 56 8.0 -0.2 91 4 323.7 324.7 294.3 339.8 4.90 19 573 4795 3.6 -9.4 38 13.0 -2.4 80 5 324.5 325.2 293.2 335.5 3.27 20 556 5039 2.2 -2.8 69 5.0 -0.4 63 5 325.7 326.8 295.3 344.2 5.61 21 530 5424 0.6 -14.4 31 15.0 -5.5 44 7 328.3 328.7 293.4 336.4 2.36 22 500 5890 -1.9 -13.9 39 12.0 -6.9 35 7 330.7 331.2 294.3 339.8 2.61 23 498 5922 -1.9 -14.9 36 13.0 -7.2 35 7 331.1 331.6 294.2 339.5 2.41 24 479 6231 -3.9 -18.9 30 15.0 -9.4 34 7 332.3 332.7 294.0 338.7 1.79 25 469 6397 -5.5 -13.5 53 8.0 -8.8 33 6 332.4 332.9 294.9 342.3 2.88 26 447 6773 -7.5 -27.5 18 20.0 -13.2 31 5 334.4 334.6 293.7 337.7 0.89 27 425 7165 -10.3 -19.3 48 9.0 -13.5 28 4 335.7 336.1 295.0 342.7 1.95 28 417 7311 -10.9 -30.9 18 20.0 -16.0 27 3 336.8 336.9 294.1 339.4 0.70 29 414 7367 -11.5 -22.5 40 11.0 -15.0 27 3 336.7 337.0 294.8 342.2 1.52 30 400 7630 -13.1 -23.1 43 10.0 -16.2 340 2 338.0 338.3 295.1 343.4 1.49 31 398 7668 -13.3 -21.3 51 8.0 -15.9 342 2 338.2 338.5 295.4 344.5 1.75 32 374 8139 -16.5 -35.5 18 19.0 -20.4 10 3 340.0 340.1 294.8 341.9 0.50 33 370 8220 -17.3 -27.3 41 10.0 -19.9 14 3 340.0 340.2 295.3 344.1 1.10 34 367 8281 -17.5 -37.5 16 20.0 -21.4 18 3 340.5 340.6 294.8 342.1 0.41 35 346 8719 -20.5 -31.5 37 11.0 -22.9 44 3 342.3 342.4 295.6 345.3 0.79 36 336 8936 -21.9 -41.9 15 20.0 -25.1 57 4 343.2 343.3 295.4 344.4 0.29 37 320 9293 -24.3 -42.3 17 18.0 -27.0 85 4 344.7 344.8 295.7 345.9 0.29 38 300 9760 -28.3 -43.3 22 15.0 -30.3 135 3 345.5 345.6 295.9 346.6 0.28 39 271 10480 -33.9 -43.9 36 10.0 -35.0 56 3 347.6 347.6 296.4 348.7 0.29 40 265 10637 -35.1 -57.1 9 22.0 -36.6 39 3 348.0 348.0 296.3 348.3 0.06 41 259 10796 -36.3 -47.3 31 11.0 -37.3 43 4 348.6 348.6 296.5 349.4 0.21 42 255 10904 -37.1 -53.1 17 16.0 -38.2 51 5 348.9 348.9 296.5 349.4 0.11 43 250 11040 -38.3 -47.3 38 9.0 -39.1 60 6 349.1 349.2 296.6 350.0 0.21 44 246 11150 -39.1 -44.1 59 5.0 -39.6 63 6 349.5 349.6 296.8 350.8 0.31 45 232 11548 -42.7 -46.5 66 3.8 -43.0 75 7 350.0 350.0 296.8 351.0 0.25 46 200 12530 -50.9 -55.9 55 5.0 -51.1 85 13 352.2 352.2 297.2 352.6 0.10 47 197 12628 -51.9 -56.9 55 5.0 -52.1 86 14 352.1 352.1 297.2 352.5 0.09 48 193 12760 -52.5 -64.5 22 12.0 -52.8 87 15 353.2 353.2 297.4 353.4 0.03 49 185 13032 -54.5 -71.5 11 17.0 -54.8 89 17 354.3 354.3 297.5 354.3 0.01 50 150 14340 -65.3 -69.8 54 4.5 -65.4 105 24 357.6 357.6 298.2 357.7 0.02 51 133 15063 -70.7 -83.7 13 13.0 -70.8 97 24 360.5 360.5 298.8 360.5 0.00 52 122 15569 -75.5 -82.5 33 7.0 -75.5 93 24 360.7 360.7 298.8 360.8 0.00 53 112 16060 -79.1 -83.6 47 4.5 -79.1 88 23 362.9 362.9 299.2 363.0 0.00 54 100 16700 -81.5 -87.5 35 6.0 -81.5 75 27 370.3 370.3 300.6 370.3 0.00 55 83 17737 -84.5 -89.5 41 5.0 -84.5 55 25 384.4 384.4 302.9 384.4 0.00 56 80 17940 -83.5 -90.5 28 7.0 -83.5 66 22 390.5 390.5 303.9 390.5 0.00 57 78 18083 -78.3 -88.3 18 10.0 -78.3 74 21 404.2 404.2 305.7 404.2 0.00 58 76 18231 -77.7 -86.7 22 9.0 -77.7 82 19 408.4 408.4 306.3 408.4 0.00 59 71 18619 -78.9 -89.9 15 11.0 -78.9 174 9 413.9 413.9 307.0 413.9 0.00 60 70 18700 -78.1 -90.1 13 12.0 -78.1 195 7 417.3 417.3 307.4 417.3 0.00 61 65 19124 -77.7 -90.7 11 13.0 -77.7 185 8 427.1 427.1 308.5 427.1 0.00 62 52 20435 -68.1 -91.1 2 23.0 -68.3 214 9 477.6 477.6 313.2 477.6 0.00 63 50 20670 -68.7 -91.7 2 23.0 -68.9 230 9 481.6 481.6 313.6 481.6 0.00 64 34 23038 -60.3 -89.3 1 29.0 -61.1 116 8 559.8 559.9 318.6 559.9 0.00 65 34 23038 -60.3 -90.3 1 30.0 -61.1 116 8 559.8 559.8 318.6 559.9 0.00 66 30 23830 -55.7 -86.7 1 31.0 -57.2 140 15 592.8 592.8 320.3 592.8 0.01 67 28 24268 -56.9 -87.9 1 31.0 -58.3 145 15 601.3 601.3 320.7 601.3 0.01 68 25 24990 -54.7 -86.7 1 32.0 -56.6 129 14 627.4 627.4 321.8 627.5 0.01 TRP 83 17737 -84.5 -89.5 41 5.0 -84.5 55 25 384.4 384.4 302.9 384.4 0.00 WND Sounding variables and indices 1000-500 mb thick: 5843.00 m Freezing level: 522.80 mb = 5536.12 m = 18162.89 ft Wetbulb zero: 602.30 mb = 4388.35 m = 14397.30 ft Precipitable water: 2.27 inches Sfc-500 mean rel hum: 63.43 % Est. max temperature: 35.69 C = 96.24 F Sfc-Lift cond lev (LCL): 936.97 mb = 626.61 m = 2055.79 ft T: 25.32 C 700-500 lapse rate: 5.35 C/km ThetaE index: 18.59 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 858.04 mb = 1399.62 m = 4591.86 ft Mean mixing ratio: 19.65 g/kg Conv temperature: 35.59 C = 96.06 F Cap Strength: 2.08 C Lifted Index: -3.09 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -6.35 C Lifted Index @700 mb: -0.99 C Showalter Index: 0.31 C Risk: Thunderstorms probable Total Totals Index: 42.10 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 18.80 C K Index: 33.20 Risk: 60-80 % chance of thunderstorms Sweat Index: 225.80 Risk: None Energy Index: -2.38 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2174.86 J/kg Max Up Vert Vel: 65.95 m/s Conv Inhibition (B-): 34.63 J/kg Cap Strength: 1.92 C Lift Cond Lev (LCL): 911.95 mb = 865.83 m = 2840.61 ft Lev Free Conv (LFC): 816.95 mb = 1824.85 m = 5986.95 ft Equ Level (EL): 106.95 mb = 16320.42 m = 53544.04 ft B at Equ Level: 2129.08 J/kg Max Parcel Lev (MPL): 66.95 mb = 18955.17 m = 62188.13 ft Wind level data Storm motion: 199 at 5 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 1005 4 200 5 1.7 4.7 | 310 0 0.1 -0.1 1 1000 47 205 7 3.0 6.3 | 220 2 1.3 1.6 2 971 305 205 9 3.8 8.2 | 212 4 2.2 3.4 3 939 610 205 15 6.3 13.6 | 208 10 4.7 8.8 4 925 741 205 19 8.0 17.2 | 207 14 6.4 12.5 5 907 914 205 19 8.0 17.2 | 207 14 6.4 12.5 6 850 1482 200 8 2.7 7.5 | 202 3 1.1 2.8 7 846 1524 200 8 2.7 7.5 | 202 3 1.1 2.8 8 788 2134 165 5 -1.3 4.8 | 91 3 -2.9 0.1 9 708 3048 160 3 -1.0 2.8 | 54 3 -2.7 -1.9 10 700 3143 135 3 -2.1 2.1 | 55 5 -3.8 -2.6 11 657 3658 115 3 -2.7 1.3 | 51 6 -4.4 -3.5 12 588 4572 100 4 -3.9 0.7 | 54 7 -5.6 -4.1 13 566 4877 70 5 -4.7 -1.7 | 44 9 -6.3 -6.5 14 525 5486 40 7 -4.5 -5.4 | 31 12 -6.1 -10.1 15 500 5890 35 7 -4.0 -5.7 | 28 12 -5.7 -10.5 16 487 6096 35 7 -4.0 -5.7 | 28 12 -5.7 -10.5 17 401 7620 25 2 -0.8 -1.8 | 21 7 -2.5 -6.6 18 400 7630 340 2 0.7 -1.9 | 8 7 -1.0 -6.6 19 326 9144 70 4 -3.8 -1.4 | 41 8 -5.4 -6.1 20 300 9760 135 3 -2.1 2.1 | 55 5 -3.8 -2.6 21 264 10668 35 3 -1.7 -2.5 | 25 8 -3.4 -7.2 22 250 11040 60 6 -5.2 -3.0 | 41 10 -6.8 -7.8 23 210 12192 95 9 -9.0 0.8 | 69 11 -10.6 -4.0 24 200 12530 85 13 -13.0 -1.1 | 68 16 -14.6 -5.9 25 166 13716 95 23 -22.9 2.0 | 84 25 -24.6 -2.8 26 150 14340 105 24 -23.2 6.2 | 93 25 -24.8 1.5 27 129 15240 95 24 -23.9 2.1 | 84 26 -25.5 -2.7 28 104 16459 85 23 -22.9 -2.0 | 75 25 -24.6 -6.8 29 100 16700 75 27 -26.1 -7.0 | 67 30 -27.7 -11.7 30 83 17737 55 25 -20.5 -14.3 | 49 29 -22.1 -19.1 31 75 18288 85 18 -17.9 -1.6 | 72 21 -19.6 -6.3 32 70 18700 195 7 1.8 6.8 | 185 2 0.2 2.0 33 58 19812 170 9 -1.6 8.9 | 142 5 -3.2 4.1 34 50 20670 230 9 6.9 5.8 | 259 5 5.3 1.0 35 45 21336 195 10 2.6 9.7 | 191 5 0.9 4.9 36 35 22860 110 6 -5.6 2.1 | 70 8 -7.3 -2.7 37 30 23830 140 15 -9.6 11.5 | 121 13 -11.3 6.7 38 26 24384 150 15 -7.5 13.0 | 132 12 -9.1 8.2 39 21 25298 65 10 -9.1 -4.2 | 50 14 -10.7 -9.0 Wind Parameters Mean winds (0-6000m): 169.0 at 6.7 knts Storm direction: 199.0 at 5.0 knts Shear (0-3000m) pos: 1.4 neg: 1.9 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 105.2 deg Storm rel helicity (0-3000m) pos: 0.0 neg: -8.2 tot: -8.2 m^2/s^2 ave: -2.7 10^-3 m/s^2 rel: -0.32 Storm rel vorticity (0-3000m) horiz: 5.6 stream: -1.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 585.20 Bulk Shear: 3.72 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 ------------------------------------------------------------------------------- 500 205 9 212 4| 8.2 0.0 8.2| 0.0 -0.8 -0.8 -1.6 -0.31| 8.9 -2.8 1000 205 13 209 8| 4.1 2.2 6.3| 0.0 -2.3 -2.3 -2.3 -0.19| 8.5 -1.7 1500 204 13 208 8| 2.7 1.7 4.4| 0.0 -3.6 -3.6 -2.4 -0.15| 8.9 -1.3 2000 202 11 204 6| 2.0 2.2 4.3| 0.0 -6.0 -6.0 -3.0 -0.26| 7.7 -2.0 2500 199 10 199 5| 1.6 2.1 3.7| 0.0 -7.3 -7.3 -2.9 -0.30| 6.5 -1.9 3000 196 9 193 4| 1.4 1.9 3.2| 0.0 -8.2 -8.2 -2.7 -0.32| 5.6 -1.8 4000 190 7 173 3| 1.0 1.8 2.8| 0.2 -8.6 -8.4 -2.1 -0.30| 4.6 -1.4 5000 181 7 143 2| 0.8 1.8 2.6| 0.4 -12.4 -12.0 -2.4 -0.31| 4.1 -1.3 6000 169 7 122 3| 0.7 1.7 2.4| 0.4 -20.3 -19.9 -3.3 -0.34| 3.7 -1.3 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250509.12.gif