UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025043012.upa.cvt Date: 1200Z 30 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 30 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 67 1 925 734 SFC 897 997 17.8 8.8 56 9.0 12.4 310 2 300.1 301.6 289.9 323.6 7.94 3 850 1454 13.6 2.6 47 11.0 7.7 120 7 300.4 301.4 287.6 316.6 5.43 4 748 2512 3.6 -1.4 70 5.0 1.2 166 18 300.7 301.6 286.9 314.6 4.62 5 700 3048 0.4 -4.0 72 4.4 -1.6 190 24 302.9 303.7 287.2 315.3 4.06 6 667 3434 -1.1 -6.1 69 5.0 -3.3 189 25 305.5 306.1 287.6 316.7 3.63 7 609 4154 -5.7 -11.7 63 6.0 -7.9 186 27 308.2 308.7 287.5 316.3 2.56 8 500 5670 -16.5 -25.5 46 9.0 -18.6 180 31 312.9 313.1 287.5 316.2 0.96 9 487 5867 -17.5 -29.5 34 12.0 -19.9 179 33 314.1 314.2 287.6 316.4 0.68 10 456 6354 -21.7 -44.7 11 23.0 -24.4 178 37 314.8 314.8 287.2 315.3 0.16 11 400 7300 -30.3 -48.3 16 18.0 -31.7 175 45 315.6 315.6 287.5 316.1 0.12 12 300 9280 -46.7 -57.7 27 11.0 -47.0 180 48 319.5 319.5 288.6 319.7 0.05 13 266 10071 -52.1 189 58 322.8 14 262 10169 -53.7 190 59 321.9 15 258 10268 -54.0 190 60 322.8 16 250 10470 -54.7 190 57 324.7 17 249 10495 -54.7 190 57 325.1 18 204 11756 -57.5 204 41 339.8 19 200 11880 -57.3 205 39 342.0 20 150 13720 -55.3 220 26 374.8 21 134 14436 -55.5 223 27 386.7 22 107 15862 -56.5 228 28 410.5 23 100 16290 -56.1 230 29 419.3 24 98 16418 -55.3 232 28 423.3 25 80 17702 -58.1 252 20 442.8 26 70 18540 -58.9 265 15 458.4 27 59 19617 -57.7 242 12 484.0 28 50 20660 -58.5 220 10 505.6 29 43 21610 -57.7 529.9 30 33 23284 -56.9 573.7 TRP 262 10169 -53.7 190 59 321.9 WND 258 10268 -54.0 190 60 322.8 Sounding variables and indices 1000-500 mb thick: 5603.00 m Freezing level: 691.20 mb = 3151.06 m = 10337.99 ft Wetbulb zero: 727.66 mb = 2734.80 m = 8972.32 ft Precipitable water: 0.63 inches Sfc-500 mean rel hum: 59.91 % Est. max temperature: 18.40 C = 65.12 F Sfc-Lift cond lev (LCL): 784.21 mb = 2120.74 m = 6957.74 ft T: 7.30 C 700-500 lapse rate: 6.45 C/km ThetaE index: 8.98 C Layer 850.0- 700.0 mb Conv cond level (CCL): 712.19 mb = 2908.51 m = 9542.24 ft Mean mixing ratio: 5.89 g/kg Conv temperature: 19.95 C = 67.91 F Cap Strength: 1.63 C Lifted Index: 1.06 C Risk: Showers probable Lifted Index @300 mb: 1.56 C Lifted Index @700 mb: 0.85 C Showalter Index: 1.82 C Risk: Showers probable Total Totals Index: 49.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 30.10 C Cross Totals Index: 19.10 C K Index: 28.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 80.20 Risk: None Energy Index: -0.07 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.90 J/kg Max Up Vert Vel: 1.95 m/s Conv Inhibition (B-): 25128.44 J/kg Cap Strength: 1.61 C Lift Cond Lev (LCL): 732.12 mb = 2685.43 m = 8810.35 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 210 at 19 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 ---------------------------------------------------------- 0 897 997 310 2 1.5 -1.3 | 24 19 -7.9 -17.4 1 850 1454 120 7 -6.1 3.5 | 51 20 -15.5 -12.6 2 700 3048 190 24 4.2 23.6 | 145 9 -5.3 7.5 3 500 5670 180 31 0.0 31.0 | 147 18 -9.5 14.9 4 400 7300 175 45 -3.9 44.8 | 155 32 -13.4 28.7 5 300 9280 180 48 0.0 48.0 | 163 33 -9.5 31.9 6 262 10169 190 59 10.2 58.1 | 181 42 0.8 42.0 7 258 10268 190 60 10.4 59.1 | 181 43 0.9 42.9 8 250 10470 190 57 9.9 56.1 | 181 40 0.4 40.0 9 200 11880 205 39 16.5 35.3 | 200 20 7.0 19.2 10 150 13720 220 26 16.7 19.9 | 243 8 7.2 3.8 11 100 16290 230 29 22.2 18.6 | 259 13 12.7 2.5 12 70 18540 265 15 14.9 1.3 | 340 16 5.5 -14.8 13 50 20660 220 10 6.4 7.7 | 20 9 -3.0 -8.5 Wind Parameters Mean winds (0-6000m): 180.4 at 25.0 knts Storm direction: 210.4 at 18.7 knts Shear (0-3000m) pos: 4.5 neg: 0.3 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 123.0 deg Storm rel helicity (0-3000m) pos: 154.4 neg: 0.0 tot: 154.4 m^2/s^2 ave: 51.5 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 7.3 stream: 5.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.03 Bulk Shear: 71.41 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 ------------------------------------------------------------------------------- 500 117 5 44 20| 9.7 0.0 9.7| 63.6 0.0 63.6 127.3 0.75| 14.9 11.1 1000 132 7 53 19| 7.6 0.0 7.6| 95.4 0.0 95.4 95.4 0.81| 10.9 8.8 1500 150 10 63 16| 6.8 0.0 6.8|124.7 0.0 124.7 83.2 0.82| 10.0 8.2 2000 171 13 73 12| 6.3 0.0 6.3|150.4 0.0 150.4 75.2 0.84| 10.0 8.3 2500 178 15 84 10| 5.4 0.0 5.4|153.7 0.0 153.7 61.5 0.82| 8.4 7.0 3000 181 17 94 9| 4.5 0.3 4.8|154.4 0.0 154.4 51.5 0.80| 7.3 5.8 4000 182 20 112 9| 3.4 0.6 4.0|154.8 -0.0 154.7 38.7 0.74| 5.9 4.4 5000 182 22 124 11| 2.7 1.0 3.7|159.3 -0.5 158.8 31.8 0.68| 5.2 3.6 6000 180 25 133 13| 2.3 1.6 3.8|170.3 -0.5 169.8 28.3 0.61| 5.1 3.1 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250430.12.gif