UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042800.upa.cvt Date: 0000Z 28 APR 25 Searching for WITT... Searching the city database file for: WITT ... Date:0000Z 28 APR 25 Station: WITT WMO ident: 96011 Latitude: 5.51 Longitude: 95.41 Elevation: 21.00 ------------------------------------------------------------------------------- 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 1008 21 25.0 23.2 90 1.8 23.7 60 3 297.5 300.7 296.6 349.8 18.04 1 1000 87 24.0 22.7 92 1.3 23.1 20 6 297.1 300.3 296.3 348.2 17.63 2 975 310 23.8 23.5 98 0.3 23.6 319 4 299.1 302.6 297.6 354.7 19.02 3 931 715 22.6 22.0 96 0.6 22.2 253 6 301.9 305.2 297.8 355.5 18.16 4 925 772 22.2 21.2 94 1.0 21.5 250 5 302.0 305.2 297.4 353.4 17.39 5 910 914 21.4 20.9 97 0.5 21.1 255 6 302.6 305.8 297.5 354.0 17.35 6 850 1504 18.4 17.9 97 0.5 18.1 145 4 305.4 308.3 296.9 351.4 15.36 7 794 2097 15.2 14.4 95 0.8 14.7 122 5 308.0 310.5 296.1 347.7 13.11 8 700 3174 9.6 8.2 91 1.4 8.7 130 9 313.1 315.0 295.1 343.5 9.80 9 629 4018 5.6 4.3 91 1.3 4.8 134 12 318.3 319.9 295.4 344.6 8.31 10 612 4233 4.2 3.1 93 1.1 3.5 127 12 319.2 320.7 295.3 344.1 7.85 11 513 5595 -4.5 -4.5 100 0.0 -4.5 82 14 325.2 326.2 295.0 342.8 5.35 12 500 5790 -5.3 -5.9 96 0.6 -5.6 75 14 326.6 327.6 295.0 343.0 4.93 13 458 6469 -8.3 -8.4 99 0.1 -8.4 67 14 331.1 332.0 295.8 346.2 4.44 14 400 7500 -14.7 -14.8 99 0.1 -14.7 55 13 335.9 336.5 295.8 346.5 3.03 15 365 8183 -18.5 -18.5 100 0.0 -18.5 23 20 339.7 340.2 296.3 348.5 2.44 16 315 9260 -25.3 -27.4 83 2.1 -25.8 58 14 344.9 345.2 296.5 349.7 1.28 17 300 9610 -28.1 -34.1 56 6.0 -29.2 70 12 345.8 345.9 296.3 348.5 0.71 18 273 10279 -33.7 -53.7 12 20.0 -35.3 86 17 347.1 347.1 296.1 347.5 0.09 19 250 10890 -38.9 -56.9 13 18.0 -39.9 100 22 348.2 348.2 296.3 348.5 0.07 20 231 11427 -43.1 -53.1 32 10.0 -43.7 100 26 349.8 349.8 296.7 350.3 0.12 TRP WND Sounding variables and indices 1000-500 mb thick: 5703.00 m Freezing level: 564.21 mb = 4890.37 m = 16044.33 ft Wetbulb zero: 568.40 mb = 4803.35 m = 15758.82 ft Precipitable water: 2.67 inches Sfc-500 mean rel hum: 94.76 % Est. max temperature: 32.58 C = 90.64 F Sfc-Lift cond lev (LCL): 982.33 mb = 243.95 m = 800.35 ft T: 23.86 C 700-500 lapse rate: 5.70 C/km ThetaE index: 10.50 C Layer 850.0- 629.0 mb Conv cond level (CCL): 917.97 mb = 838.41 m = 2750.67 ft Mean mixing ratio: 18.20 g/kg Conv temperature: 29.83 C = 85.69 F Cap Strength: 0.84 C Lifted Index: -3.56 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.58 C Lifted Index @700 mb: -1.90 C Showalter Index: -2.86 C Risk: Severe thunderstorms possible Total Totals Index: 46.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 23.20 C K Index: 40.20 Risk: > 80 % chance of thunderstorms Sweat Index: 236.80 Risk: None Energy Index: -1.95 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 822.13 J/kg Max Up Vert Vel: 40.55 m/s Conv Inhibition (B-): 10.93 J/kg Cap Strength: 0.77 C Lift Cond Lev (LCL): 947.95 mb = 556.95 m = 1827.24 ft Lev Free Conv (LFC): 862.95 mb = 1373.25 m = 4505.36 ft Wind level data Storm motion: 145 at 7 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 1008 21 60 3 -2.6 -1.5 | 350 7 1.2 -7.1 1 1000 87 20 6 -2.1 -5.6 | 351 11 1.8 -11.2 2 976 305 320 4 2.6 -3.1 | 323 11 6.4 -8.6 3 942 610 260 8 7.9 1.4 | 290 12 11.7 -4.2 4 925 772 250 5 4.7 1.7 | 294 9 8.5 -3.8 5 910 914 255 6 5.8 1.6 | 293 10 9.6 -4.0 6 850 1504 145 4 -2.3 3.3 | 326 3 1.5 -2.3 7 790 2134 120 5 -4.3 2.5 | 9 3 -0.5 -3.1 8 700 3174 130 9 -6.9 5.8 | 94 3 -3.1 0.2 9 632 3962 135 12 -8.5 8.5 | 122 5 -4.7 2.9 10 608 4267 125 12 -9.8 6.9 | 102 6 -6.0 1.3 11 500 5790 75 14 -13.5 -3.6 | 47 13 -9.7 -9.2 12 400 7500 55 13 -10.6 -7.5 | 28 15 -6.8 -13.0 13 377 7925 15 21 -5.4 -20.3 | 4 26 -1.6 -25.8 14 300 9610 70 12 -11.3 -4.1 | 38 12 -7.4 -9.7 15 250 10890 100 22 -21.7 3.8 | 84 18 -17.8 -1.7 16 225 11582 100 27 -26.6 4.7 | 88 23 -22.8 -0.9 Wind Parameters Mean winds (0-6000m): 115.4 at 9.0 knts Storm direction: 145.4 at 6.8 knts Shear (0-3000m) pos: 0.3 neg: 1.0 tot: 1.3 10-3/s Storm rel Dir Shear (0-3000m): 93.4 deg Storm rel helicity (0-3000m) pos: 8.0 neg: -42.2 tot: -34.1 m^2/s^2 ave: -11.4 10^-3 m/s^2 rel: -0.16 Storm rel vorticity (0-3000m) horiz: 6.0 stream: -1.0 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 34.15 Bulk Shear: 24.07 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 ------------------------------------------------------------------------------- 500 331 5 328 12| 0.0 9.7 9.7| 0.0 -29.0 -29.0 -57.9 -0.70| 14.1-10.0 1000 281 6 305 11| 0.0 4.4 4.4| 2.0 -40.5 -38.4 -38.4 -0.60| 11.0 -6.6 1500 263 5 298 10| 0.0 1.6 1.6| 4.3 -42.2 -37.8 -25.2 -0.38| 10.0 -3.8 2000 232 5 287 8| 0.0 1.1 1.1| 5.5 -42.2 -36.7 -18.4 -0.30| 8.0 -2.4 2500 185 5 275 4| 0.0 1.2 1.2| 6.7 -42.2 -35.4 -14.2 -0.23| 6.8 -1.6 3000 155 6 289 2| 0.3 1.0 1.3| 8.0 -42.2 -34.1 -11.4 -0.16| 6.0 -1.0 4000 141 7 64 1| 0.7 0.7 1.5| 10.5 -42.6 -32.1 -8.0 -0.09| 5.0 -0.4 5000 130 8 81 2| 0.6 0.7 1.3| 10.5 -53.9 -43.4 -8.7 -0.20| 4.7 -1.0 6000 115 9 68 5| 0.5 0.9 1.4| 10.5 -70.3 -59.8 -10.0 -0.28| 4.5 -1.3 Wrote GIF file: /home/apache/climate/data/raob//WITT/skewt/WITT.skewt.20250428.00.gif