UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 18 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 93 1 925 779 SFC 902 997 26.6 2.6 21 24.0 12.9 170 5 308.7 309.7 290.2 324.6 5.12 3 850 1519 21.6 0.6 25 21.0 10.1 265 8 308.8 309.7 289.8 323.4 4.70 4 833 1693 19.4 -0.6 26 20.0 8.8 262 9 308.2 309.1 289.3 321.9 4.39 5 700 3152 5.4 -4.6 48 10.0 0.7 235 13 308.5 309.2 288.9 320.6 3.88 6 658 3653 1.4 -10.6 40 12.0 -3.5 241 14 309.5 310.0 288.0 317.7 2.59 7 657 3665 2.0 -12.0 35 14.0 -3.6 242 14 310.3 310.7 288.0 317.7 2.32 8 639 3889 1.6 -22.4 15 24.0 -5.9 244 14 312.3 312.5 287.3 315.6 0.99 9 611 4248 0.0 -22.0 17 22.0 -6.9 249 15 314.5 314.7 288.1 318.1 1.07 10 558 4964 -7.5 -22.5 29 15.0 -11.8 259 16 313.9 314.1 288.0 317.7 1.13 11 535 5290 -8.9 -27.9 20 19.0 -13.6 263 16 316.0 316.2 288.2 318.5 0.72 12 500 5810 -12.9 -33.9 15 21.0 -17.0 270 17 317.3 317.4 288.3 318.9 0.43 13 459 6457 -18.5 -31.5 31 13.0 -21.0 270 21 318.2 318.3 288.8 320.3 0.60 14 400 7470 -26.9 -36.9 38 10.0 -28.3 270 28 320.0 320.1 289.2 321.5 0.40 15 354 8337 -34.1 -43.1 40 9.0 -34.9 264 28 321.7 321.8 289.5 322.6 0.24 16 300 9470 -44.1 -53.1 36 9.0 -44.5 255 29 323.2 323.2 289.8 323.6 0.09 17 250 10670 -54.3 -63.3 32 9.0 -54.5 255 29 325.3 325.3 290.4 325.5 0.03 18 233 11118 -57.9 255 32 326.5 19 209 11798 -61.5 262 35 331.2 20 200 12070 -63.5 265 36 332.2 21 193 12289 -62.5 266 34 337.2 22 166 13220 -61.3 271 24 354.1 23 150 13850 -60.1 275 18 366.5 24 109 15853 -59.5 271 22 402.7 25 100 16390 -62.5 270 23 407.0 26 83 17534 -64.3 291 15 425.6 27 73 18322 -62.9 305 9 444.5 28 70 18580 -63.3 310 7 449.0 29 50 20630 -64.5 60 6 491.5 30 36 22652 -62.9 95 9 544.0 31 30 23790 -58.1 115 10 586.2 32 29 24002 -58.7 124 10 590.3 33 20 26350 -54.3 225 9 670.0 34 19 26679 -54.7 678.6 35 14 28660 -48.5 761.6 36 10 30911 -41.1 866.1 TRP 233 11118 -57.9 255 32 326.5 WND Sounding variables and indices 1000-500 mb thick: 5717.00 m Freezing level: 611.00 mb = 4248.23 m = 13937.59 ft Wetbulb zero: 693.25 mb = 3230.50 m = 10598.63 ft Precipitable water: 0.50 inches Sfc-500 mean rel hum: 28.60 % Est. max temperature: 26.35 C = 79.43 F Sfc-Lift cond lev (LCL): 632.81 mb = 3966.95 m = 13014.77 ft T: 1.25 C 700-500 lapse rate: 6.88 C/km ThetaE index: 6.83 C Layer 850.0- 657.0 mb Conv cond level (CCL): 576.74 mb = 4703.44 m = 15431.05 ft Mean mixing ratio: 4.66 g/kg Conv temperature: 31.85 C = 89.32 F Cap Strength: 4.61 C Lifted Index: 1.85 C Risk: Showers probable Lifted Index @300 mb: 0.76 C Lifted Index @700 mb: -0.09 C Showalter Index: 1.67 C Risk: Showers probable Total Totals Index: 48.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 34.50 C Cross Totals Index: 13.50 C K Index: 25.10 Risk: 40-60 % chance of thunderstorms Sweat Index: 40.20 Risk: None Energy Index: -0.83 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.06 J/kg Max Up Vert Vel: 4.49 m/s Conv Inhibition (B-): 52001.53 J/kg Cap Strength: 4.60 C Lift Cond Lev (LCL): 621.91 mb = 4106.33 m = 13472.04 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 287 at 11 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 ---------------------------------------------------------- 0 902 997 170 5 -0.9 4.9 | 126 14 -11.2 8.1 1 850 1519 265 8 8.0 0.7 | 149 5 -2.3 3.9 2 700 3152 235 13 10.6 7.5 | 182 11 0.4 10.7 3 500 5810 270 17 17.0 -0.0 | 244 7 6.7 3.2 4 400 7470 270 28 28.0 -0.0 | 260 18 17.7 3.2 5 300 9470 255 29 28.0 7.5 | 239 21 17.7 10.7 6 250 10670 255 29 28.0 7.5 | 239 21 17.7 10.7 7 233 11118 255 32 30.9 8.3 | 241 24 20.6 11.5 8 200 12070 265 36 35.9 3.1 | 256 26 25.6 6.4 9 150 13850 275 18 17.9 -1.6 | 258 8 7.6 1.7 10 100 16390 270 23 23.0 -0.0 | 256 13 12.7 3.2 11 70 18580 310 7 5.4 -4.5 | 75 5 -4.9 -1.3 12 50 20630 60 6 -5.2 -3.0 | 91 15 -15.5 0.2 13 30 23790 115 10 -9.1 4.2 | 111 21 -19.4 7.5 14 20 26350 225 9 6.4 6.4 | 158 10 -3.9 9.6 Wind Parameters Mean winds (0-6000m): 257.4 at 14.4 knts Storm direction: 287.4 at 10.8 knts Shear (0-3000m) pos: 2.1 neg: 1.1 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 70.9 deg Storm rel helicity (0-3000m) pos: 26.8 neg: 0.0 tot: 26.8 m^2/s^2 ave: 8.9 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 3.6 stream: 1.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.89 Bulk Shear: 11.25 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 ------------------------------------------------------------------------------- 500 229 6 144 9| 9.7 0.0 9.7| 14.7 0.0 14.7 29.4 0.46| 10.9 5.0 1000 250 8 151 7| 4.8 0.9 5.7| 16.8 0.0 16.8 16.8 0.50| 6.6 3.3 1500 250 8 159 7| 3.2 1.3 4.5| 18.7 0.0 18.7 12.5 0.50| 5.1 2.6 2000 246 9 166 7| 2.4 1.6 4.0| 19.7 0.0 19.7 9.8 0.46| 4.5 2.0 2500 243 10 170 8| 2.1 1.3 3.4| 22.6 0.0 22.6 9.0 0.47| 4.0 1.9 3000 243 11 175 8| 2.1 1.1 3.1| 26.8 0.0 26.8 8.9 0.51| 3.6 1.8 4000 247 12 184 8| 2.0 0.8 2.8| 34.8 0.0 34.8 8.7 0.57| 3.2 1.8 5000 253 13 196 7| 2.0 0.6 2.6| 42.5 0.0 42.5 8.5 0.61| 3.0 1.8 6000 257 14 210 7| 1.7 0.9 2.6| 48.1 0.0 48.1 8.0 0.55| 3.1 1.7 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250418.12.gif