UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 26 APR 25 Station: VVTS WMO ident: 48900 Latitude: 10.82 Longitude: 106.67 Elevation: 19.00 ------------------------------------------------------------------------------- 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 1010 19 29.8 24.8 75 5.0 26.0 145 3 302.1 305.7 298.9 360.9 19.88 1 1000 92 28.8 24.1 76 4.7 25.3 155 9 302.0 305.5 298.5 358.8 19.23 2 930 735 23.4 22.5 95 0.9 22.8 178 11 302.8 306.2 298.4 358.4 18.76 3 925 782 23.6 18.6 74 5.0 20.1 180 11 303.4 306.2 296.0 347.2 14.74 4 921 820 23.8 15.8 61 8.0 18.4 178 11 304.0 306.3 294.5 340.8 12.35 5 850 1518 19.6 13.6 68 6.0 15.6 140 7 306.7 308.8 294.7 341.6 11.60 6 774 2319 13.8 13.2 96 0.6 13.4 104 9 308.8 311.1 295.8 346.5 12.42 7 752 2563 13.0 9.3 78 3.7 10.7 93 10 310.5 312.3 294.4 340.6 9.83 8 744 2653 13.0 7.0 67 6.0 9.3 89 10 311.4 313.0 293.7 337.6 8.48 9 700 3164 9.6 8.1 90 1.5 8.6 65 11 313.1 315.0 295.1 343.3 9.74 10 681 3392 7.8 6.7 93 1.1 7.1 66 11 313.6 315.3 294.7 341.8 9.08 11 668 3551 7.8 -0.2 57 8.0 3.5 67 11 315.3 316.4 292.6 333.2 5.65 12 655 3713 6.6 4.3 85 2.3 5.2 68 11 315.7 317.3 294.5 340.8 7.98 13 618 4189 4.0 0.1 76 3.9 1.9 71 11 318.0 319.3 293.8 338.0 6.25 14 603 4390 3.6 -7.4 44 11.0 -1.6 72 11 319.8 320.5 292.2 331.7 3.64 15 596 4484 3.2 -6.8 48 10.0 -1.6 72 11 320.4 321.2 292.6 333.1 3.85 16 558 5015 -1.1 -2.9 88 1.8 -2.0 75 11 321.4 322.5 294.2 339.4 5.55 17 546 5189 -1.7 -4.7 80 3.0 -3.2 76 11 322.7 323.7 294.0 338.9 4.95 18 541 5263 -0.7 -18.7 24 18.0 -7.2 76 11 324.8 325.1 291.8 330.4 1.61 19 534 5367 -0.9 -25.9 13 25.0 -8.5 77 11 325.8 325.9 291.4 328.9 0.87 20 525 5503 -2.3 -15.3 36 13.0 -7.4 78 11 325.7 326.1 292.6 333.2 2.22 21 500 5890 -3.5 -41.5 3 38.0 -11.5 80 11 328.8 328.8 291.6 329.5 0.20 22 460 6540 -7.7 -23.7 26 16.0 -12.6 87 12 331.5 331.7 293.3 335.9 1.23 23 403 7553 -13.3 -44.3 5 31.0 -18.6 99 13 337.0 337.0 293.7 337.7 0.18 24 400 7610 -13.7 -44.7 5 31.0 -18.9 100 13 337.2 337.2 293.8 337.9 0.18 25 366 8278 -19.3 -48.3 6 29.0 -23.2 100 13 338.4 338.4 294.0 338.9 0.13 26 319 9288 -25.7 -41.7 21 16.0 -28.0 100 13 343.1 343.2 295.3 344.3 0.31 27 309 9518 -27.5 -41.5 25 14.0 -29.5 100 13 343.7 343.8 295.5 345.0 0.33 28 300 9730 -29.1 -52.1 9 23.0 -31.3 100 13 344.4 344.4 295.4 344.8 0.10 29 299 9754 -29.3 -56.3 6 27.0 -31.6 100 13 344.4 344.4 295.4 344.7 0.06 30 250 11010 -39.5 -55.5 17 16.0 -40.5 110 13 347.3 347.4 296.1 347.7 0.08 31 241 11258 -41.5 -55.5 21 14.0 -42.3 112 13 348.0 348.0 296.3 348.4 0.09 32 215 12019 -47.1 -69.1 6 22.0 -47.7 120 13 350.9 350.9 296.8 350.9 0.02 33 200 12490 -51.5 -64.5 20 13.0 -51.8 125 13 351.2 351.2 296.9 351.4 0.03 34 182 13098 -56.1 -59.9 62 3.8 -56.2 102 14 353.3 353.3 297.4 353.6 0.07 35 176 13310 -57.7 -62.3 56 4.6 -57.8 94 15 354.1 354.1 297.5 354.3 0.05 36 150 14300 -66.9 -71.9 49 5.0 -67.0 55 17 354.8 354.8 297.7 354.9 0.02 37 122 15513 -78.3 -83.3 44 5.0 -78.3 58 22 355.6 355.6 297.8 355.6 0.00 38 109 16147 -83.5 -87.9 46 4.4 -83.5 59 25 357.5 357.5 298.2 357.5 0.00 39 103 16463 -81.7 -86.2 46 4.5 -81.7 60 26 366.8 366.8 300.0 366.8 0.00 40 100 16630 -77.5 -83.5 37 6.0 -77.5 60 27 378.0 378.0 301.9 378.0 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5798.00 m Freezing level: 567.72 mb = 4879.65 m = 16009.17 ft Wetbulb zero: 609.84 mb = 4297.75 m = 14100.07 ft Precipitable water: 2.08 inches Sfc-500 mean rel hum: 69.80 % Est. max temperature: 34.02 C = 93.23 F Sfc-Lift cond lev (LCL): 939.92 mb = 640.70 m = 2102.02 ft T: 24.19 C 700-500 lapse rate: 4.81 C/km ThetaE index: 20.15 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 867.61 mb = 1339.57 m = 4394.85 ft Mean mixing ratio: 17.93 g/kg Conv temperature: 33.73 C = 92.71 F Cap Strength: 1.71 C Lifted Index: -2.52 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.81 C Lifted Index @700 mb: -2.55 C Showalter Index: 2.63 C Risk: Showers probable Total Totals Index: 40.20 C Risk: None Vertical Totals Index: 23.10 C Cross Totals Index: 17.10 C K Index: 35.20 Risk: > 80 % chance of thunderstorms Sweat Index: 188.20 Risk: None Energy Index: -2.18 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1399.79 J/kg Max Up Vert Vel: 52.91 m/s Conv Inhibition (B-): 30.34 J/kg Cap Strength: 1.71 C Lift Cond Lev (LCL): 910.67 mb = 918.10 m = 3012.11 ft Lev Free Conv (LFC): 825.67 mb = 1766.30 m = 5794.89 ft Equ Level (EL): 115.67 mb = 15812.44 m = 51877.45 ft B at Equ Level: 1390.85 J/kg Wind level data Storm motion: 125 at 8 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 1010 19 145 3 -1.7 2.5 | 292 5 4.5 -1.8 1 1000 92 155 9 -3.8 8.2 | 212 5 2.4 3.9 2 925 782 180 11 0.0 11.0 | 223 9 6.2 6.7 3 850 1518 140 7 -4.5 5.4 | 237 2 1.7 1.1 4 700 3164 65 11 -10.0 -4.6 | 23 10 -3.8 -8.9 5 500 5890 80 11 -10.8 -1.9 | 37 8 -4.6 -6.2 6 400 7610 100 13 -12.8 2.3 | 73 7 -6.6 -2.0 7 300 9730 100 13 -12.8 2.3 | 73 7 -6.6 -2.0 8 250 11010 110 13 -12.2 4.4 | 92 6 -6.0 0.2 9 200 12490 125 13 -10.6 7.5 | 126 5 -4.4 3.2 10 150 14300 55 17 -13.9 -9.8 | 29 16 -7.7 -14.0 11 100 16630 60 27 -23.4 -13.5 | 44 25 -17.2 -17.8 Wind Parameters Mean winds (0-6000m): 94.5 at 10.0 knts Storm direction: 124.5 at 7.5 knts Shear (0-3000m) pos: 1.3 neg: 2.7 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 95.0 deg Storm rel helicity (0-3000m) pos: 3.0 neg: -11.5 tot: -8.5 m^2/s^2 ave: -2.8 10^-3 m/s^2 rel: -0.33 Storm rel vorticity (0-3000m) horiz: 5.0 stream: -1.7 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 93.98 Bulk Shear: 14.89 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 ------------------------------------------------------------------------------- 500 162 9 219 5| 7.9 0.0 7.9| 1.0 -6.0 -5.0 -9.9 -0.65| 9.7 -6.2 1000 169 10 220 7| 3.9 0.4 4.3| 2.2 -7.1 -4.8 -4.8 -0.46| 6.8 -3.1 1500 166 9 220 6| 2.6 1.9 4.5| 3.0 -7.2 -4.2 -2.8 -0.29| 6.2 -1.8 2000 158 9 216 5| 2.0 2.2 4.1| 3.0 -7.5 -4.5 -2.3 -0.33| 5.5 -1.8 2500 148 9 205 4| 1.6 2.5 4.1| 3.0 -8.4 -5.4 -2.1 -0.32| 5.2 -1.7 3000 135 9 176 2| 1.3 2.7 4.0| 3.0 -11.5 -8.5 -2.8 -0.33| 5.0 -1.7 4000 113 10 78 3| 1.0 2.1 3.2| 4.5 -13.0 -8.4 -2.1 -0.31| 4.0 -1.3 5000 101 10 55 4| 0.9 1.7 2.7| 6.3 -13.0 -6.7 -1.3 -0.28| 3.3 -0.9 6000 95 10 48 5| 0.9 1.4 2.3| 8.4 -13.0 -4.6 -0.8 -0.24| 2.9 -0.7 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20250426.12.gif