UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102012.upa.cvt Date: 1200Z 20 OCT 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 20 OCT 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 118 1 925 789 SFC 903 997 19.4 10.4 56 9.0 13.8 320 6 301.2 302.8 290.9 327.2 8.80 3 850 1512 14.0 7.0 63 7.0 9.9 240 10 300.8 302.2 289.6 322.8 7.41 4 750 2551 4.8 1.9 81 2.9 3.3 256 18 301.8 302.9 288.5 319.4 5.86 5 700 3111 1.0 -1.8 82 2.8 -0.3 265 23 303.6 304.5 288.1 318.2 4.79 6 666 3510 -1.5 -5.0 77 3.5 -3.1 264 25 305.1 305.9 287.9 317.3 3.96 7 612 4181 -5.1 -8.6 76 3.5 -6.5 261 28 308.5 309.1 288.3 318.7 3.26 8 538 5187 -9.7 -14.3 69 4.6 -11.3 257 33 314.6 315.0 289.4 322.2 2.35 9 516 5509 -11.5 -19.5 52 8.0 -13.9 256 35 316.2 316.5 289.2 321.5 1.58 10 500 5750 -13.1 -19.1 61 6.0 -14.9 255 36 317.1 317.4 289.6 322.7 1.69 11 430 6881 -21.1 -28.1 53 7.0 -22.5 269 48 320.9 321.0 289.9 323.9 0.88 12 400 7410 -25.1 -32.1 52 7.0 -26.3 275 54 322.4 322.5 290.2 324.7 0.65 13 367 8029 -30.3 -35.3 62 5.0 -31.0 272 57 323.5 323.6 290.4 325.4 0.52 14 300 9430 -41.3 -49.3 42 8.0 -41.8 265 63 327.2 327.2 291.0 327.7 0.14 15 293 9594 -42.5 -50.5 41 8.0 -42.9 327.7 327.7 291.2 328.2 0.13 16 250 10670 -50.5 -57.5 43 7.0 -50.7 331.0 331.0 292.0 331.2 0.06 17 230 11210 -53.9 -60.9 42 7.0 -54.1 333.8 333.8 292.8 334.0 0.05 TRP WND Sounding variables and indices 1000-500 mb thick: 5632.00 m Freezing level: 686.40 mb = 3270.73 m = 10730.60 ft Wetbulb zero: 704.57 mb = 3058.26 m = 10033.53 ft Precipitable water: 0.85 inches Sfc-500 mean rel hum: 71.60 % Est. max temperature: 19.93 C = 67.88 F Sfc-Lift cond lev (LCL): 789.90 mb = 2120.91 m = 6958.27 ft T: 8.61 C 700-500 lapse rate: 5.34 C/km ThetaE index: 9.90 C Layer 850.0- 612.0 mb Conv cond level (CCL): 759.28 mb = 2449.29 m = 8035.64 ft Mean mixing ratio: 7.59 g/kg Conv temperature: 19.87 C = 67.77 F Cap Strength: 1.31 C Lifted Index: 1.35 C Risk: Showers probable Lifted Index @300 mb: 3.21 C Lifted Index @700 mb: -0.89 C Showalter Index: 1.76 C Risk: Showers probable Total Totals Index: 47.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.10 C Cross Totals Index: 20.10 C K Index: 31.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 140.00 Risk: None Energy Index: -0.05 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 55.25 J/kg Max Up Vert Vel: 10.51 m/s Conv Inhibition (B-): 6.59 J/kg Cap Strength: 1.37 C Lift Cond Lev (LCL): 766.57 mb = 2369.92 m = 7775.23 ft Lev Free Conv (LFC): 751.57 mb = 2534.02 m = 8313.62 ft Equ Level (EL): 571.57 mb = 4714.28 m = 15466.62 ft B at Equ Level: 54.82 J/kg Max Parcel Lev (MPL): 471.57 mb = 6188.82 m = 20304.29 ft Wind level data Storm motion: 290 at 20 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 ---------------------------------------------------------- 0 903 997 320 6 3.9 -4.6 | 100 16 -15.3 2.6 1 850 1512 240 10 8.7 5.0 | 139 16 -10.5 12.2 2 700 3111 265 23 22.9 2.0 | 202 10 3.7 9.2 3 500 5750 255 36 34.8 9.3 | 223 23 15.6 16.5 4 400 7410 275 54 53.8 -4.7 | 266 35 34.6 2.5 5 300 9430 265 63 62.8 5.5 | 254 45 43.6 12.7 Wind Parameters Mean winds (0-6000m): 260.5 at 27.3 knts Storm direction: 290.5 at 20.5 knts Shear (0-3000m) pos: 2.8 neg: 2.2 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 115.8 deg Storm rel helicity (0-3000m) pos: 86.8 neg: 0.0 tot: 86.8 m^2/s^2 ave: 28.9 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 5.3 stream: 4.4 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 1.10 Bulk Shear: 50.24 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 ------------------------------------------------------------------------------- 500 269 8 123 13| 0.0 10.7 10.7| 33.2 0.0 33.2 66.3 0.81| 11.8 9.5 1000 253 10 136 14| 2.2 5.4 7.5| 48.6 0.0 48.6 48.6 0.83| 8.1 6.8 1500 253 12 144 13| 3.0 3.6 6.5| 62.5 0.0 62.5 41.7 0.84| 7.0 5.9 2000 257 14 152 12| 3.4 2.7 6.1| 75.8 0.0 75.8 37.9 0.86| 6.5 5.6 2500 260 16 160 11| 3.3 2.1 5.5| 82.4 0.0 82.4 33.0 0.85| 5.8 5.0 3000 261 18 169 10| 2.8 2.2 4.9| 86.8 0.0 86.8 28.9 0.82| 5.3 4.4 4000 260 21 186 11| 2.1 2.3 4.3| 94.0 0.0 94.0 23.5 0.75| 4.7 3.5 5000 259 24 199 13| 2.1 2.1 4.2|116.1 0.0 116.1 23.2 0.71| 4.5 3.2 6000 260 27 214 14| 2.9 1.7 4.6|206.0 0.0 206.0 34.3 0.75| 5.0 3.7 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20251020.12.gif