UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042112.upa.cvt Date: 1200Z 21 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 21 APR 25 Station: LTBM WMO ident: 17240 Latitude: 37.75 Longitude: 30.55 Elevation: 997.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 65 1 925 744 SFC 898 997 22.8 8.8 41 14.0 14.1 140 9 305.2 306.7 291.5 329.1 7.94 3 881 1164 19.4 6.4 43 13.0 11.8 149 10 303.3 304.6 289.9 323.9 6.85 4 850 1474 16.0 5.0 48 11.0 9.7 165 13 302.9 304.1 289.5 322.3 6.44 5 700 3087 2.0 -4.0 64 6.0 -0.8 265 14 304.7 305.5 287.8 317.2 4.06 6 676 3368 0.4 -6.6 59 7.0 -2.6 264 15 306.0 306.6 287.6 316.7 3.45 7 674 3392 0.6 -7.4 55 8.0 -2.9 264 15 306.4 307.1 287.6 316.6 3.25 8 669 3452 0.6 -10.4 43 11.0 -3.8 264 15 307.1 307.6 287.2 315.3 2.59 9 652 3659 1.0 -25.0 12 26.0 -6.5 263 15 309.8 310.0 286.2 312.4 0.77 10 649 3696 1.2 -27.8 9 29.0 -6.7 263 16 310.5 310.6 286.2 312.5 0.60 11 645 3746 0.6 -25.4 12 26.0 -6.8 263 16 310.3 310.5 286.4 312.9 0.75 12 500 5730 -16.1 -25.1 46 9.0 -18.2 255 21 313.4 313.6 287.7 316.8 1.00 13 437 6730 -24.1 -32.1 48 8.0 -25.4 255 23 315.6 315.7 288.0 317.7 0.59 14 400 7370 -29.1 -38.1 42 9.0 -30.2 255 25 317.2 317.2 288.2 318.5 0.36 15 394 7478 -30.3 -42.3 30 12.0 -31.5 256 27 317.0 317.0 288.1 317.8 0.23 16 382 7697 -31.7 -48.7 17 17.0 -33.0 258 30 317.9 318.0 288.2 318.4 0.12 17 339 8529 -37.7 -59.7 8 22.0 -38.7 267 43 320.8 320.8 289.0 321.0 0.04 18 314 9053 -41.5 -58.5 14 17.0 -42.2 272 51 322.6 322.6 289.6 322.8 0.05 19 300 9360 -44.1 -59.1 17 15.0 -44.6 275 56 323.2 323.2 289.8 323.4 0.04 20 282 9777 -44.7 -60.7 15 16.0 -45.2 328.1 328.1 291.2 328.3 0.04 21 250 10580 -48.7 333.7 22 223 11324 -53.1 338.0 TRP WND Sounding variables and indices 1000-500 mb thick: 5665.00 m Freezing level: 639.79 mb = 3817.08 m = 12523.08 ft Wetbulb zero: 711.39 mb = 2952.96 m = 9688.07 ft Precipitable water: 0.59 inches Sfc-500 mean rel hum: 41.41 % Est. max temperature: 21.80 C = 71.25 F Sfc-Lift cond lev (LCL): 729.99 mb = 2738.46 m = 8984.34 ft T: 5.03 C 700-500 lapse rate: 6.85 C/km ThetaE index: 16.68 C Layer 881.0- 649.0 mb Conv cond level (CCL): 702.49 mb = 3057.50 m = 10031.03 ft Mean mixing ratio: 6.43 g/kg Conv temperature: 22.29 C = 72.12 F Cap Strength: 3.11 C Lifted Index: -1.18 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.94 C Lifted Index @700 mb: 0.46 C Showalter Index: -0.94 C Risk: Thunderstorms probable Total Totals Index: 53.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 32.10 C Cross Totals Index: 21.10 C K Index: 31.10 Risk: 60-80 % chance of thunderstorms Sweat Index: 191.00 Risk: None Energy Index: -1.04 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 169.03 J/kg Max Up Vert Vel: 18.39 m/s Conv Inhibition (B-): 117.92 J/kg Cap Strength: 2.85 C Lift Cond Lev (LCL): 715.32 mb = 2907.14 m = 9537.75 ft Lev Free Conv (LFC): 540.32 mb = 5125.70 m = 16816.39 ft Equ Level (EL): 330.32 mb = 8706.58 m = 28564.53 ft B at Equ Level: 167.91 J/kg Max Parcel Lev (MPL): 260.32 mb = 10310.31 m = 33826.05 ft Wind level data Storm motion: 279 at 13 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 ---------------------------------------------------------- 0 898 997 140 9 -5.8 6.9 | 116 20 -18.5 8.8 1 850 1474 165 13 -3.4 12.6 | 132 22 -16.1 14.5 2 700 3087 265 14 13.9 1.2 | 202 3 1.3 3.2 3 500 5730 255 21 20.3 5.4 | 226 11 7.6 7.4 4 400 7370 255 25 24.1 6.5 | 234 14 11.5 8.4 5 300 9360 275 56 55.8 -4.9 | 274 43 43.1 -2.9 Wind Parameters Mean winds (0-6000m): 248.7 at 17.1 knts Storm direction: 278.7 at 12.8 knts Shear (0-3000m) pos: 3.7 neg: 0.2 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 103.6 deg Storm rel helicity (0-3000m) pos: 90.7 neg: 0.0 tot: 90.7 m^2/s^2 ave: 30.2 10^-3 m/s^2 rel: 0.67 Storm rel vorticity (0-3000m) horiz: 5.5 stream: 3.7 10^-3/s Energy-Hel index: 0.09 Bulk Rich Number: 2.92 Bulk Shear: 57.96 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 ------------------------------------------------------------------------------- 500 155 11 125 21| 6.6 0.0 6.6| 35.9 0.0 35.9 71.8 0.98| 6.7 6.6 1000 170 12 133 20| 5.9 0.0 5.9| 64.5 0.0 64.5 64.5 0.88| 7.0 6.2 1500 185 13 141 19| 5.5 0.0 5.5| 81.3 0.0 81.3 54.2 0.78| 7.2 5.6 2000 200 13 149 16| 5.1 0.0 5.1| 88.5 0.0 88.5 44.3 0.70| 7.3 5.1 2500 216 13 159 13| 4.4 0.0 4.4| 89.9 0.0 89.9 36.0 0.68| 6.4 4.3 3000 229 14 167 11| 3.7 0.2 3.9| 90.7 0.0 90.7 30.2 0.67| 5.5 3.7 4000 241 15 181 9| 2.8 0.6 3.3| 91.9 0.0 91.9 23.0 0.64| 4.5 2.9 5000 246 16 192 9| 2.2 0.7 2.9| 93.1 0.0 93.1 18.6 0.60| 3.9 2.4 6000 249 17 202 9| 1.8 0.8 2.6| 96.5 0.0 96.5 16.1 0.59| 3.5 2.0 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250421.12.gif