UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102100.upa.cvt Date: 0000Z 21 OCT 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:0000Z 21 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 141 1 925 799 SFC 904 997 13.6 11.5 87 2.1 12.3 120 1 295.1 296.8 289.5 322.4 9.47 3 850 1509 11.0 7.2 77 3.8 8.8 295 12 297.7 299.0 288.6 319.7 7.51 4 706 3037 1.6 -2.1 76 3.7 -0.2 271 20 303.5 304.4 288.0 317.7 4.64 5 701 3094 1.4 -1.8 79 3.2 -0.2 270 20 303.9 304.8 288.2 318.5 4.78 6 700 3106 1.2 -2.3 77 3.5 -0.4 270 20 303.8 304.7 288.1 317.9 4.62 7 547 5052 -10.7 -13.0 83 2.3 -11.5 266 30 311.9 312.4 288.8 320.2 2.57 8 545 5080 -11.1 -13.2 84 2.1 -11.8 266 30 311.7 312.2 288.7 319.9 2.54 9 500 5740 -13.9 -18.4 69 4.5 -15.3 265 34 316.1 316.4 289.4 322.1 1.79 10 468 6241 -17.9 -22.8 65 4.9 -19.1 265 36 317.2 317.4 289.2 321.6 1.31 11 450 6534 -20.1 -24.1 70 4.0 -21.0 265 37 318.0 318.2 289.4 322.1 1.21 12 400 7400 -26.3 -32.3 57 6.0 -27.3 265 40 320.8 320.9 289.7 323.1 0.64 13 376 7844 -30.1 -35.1 62 5.0 -30.8 264 39 321.5 321.6 289.8 323.4 0.51 14 320 8971 -39.3 -47.3 42 8.0 -39.8 261 37 323.9 324.0 290.2 324.6 0.17 15 300 9410 -42.9 -50.9 41 8.0 -43.3 260 36 324.9 324.9 290.4 325.4 0.12 16 250 10610 -52.7 265 41 327.7 17 237 10954 -54.9 256 44 329.4 18 228 11201 -56.9 250 46 330.1 19 215 11573 -57.5 250 59 334.7 20 200 12030 -57.9 250 75 341.1 21 196 12157 -57.6 255 76 343.6 22 195 12190 -57.5 255 76 344.2 23 150 13840 -59.1 255 55 368.3 24 131 14684 -59.9 260 53 381.4 25 117 15386 -61.1 264 52 391.7 26 100 16350 -64.5 270 50 403.1 27 87 17209 -62.7 270 50 423.1 28 70 18560 -61.1 270 50 453.7 29 69 18649 -62.5 270 50 452.5 30 50 20640 -63.3 270 49 494.3 31 48 20892 -61.5 270 49 504.4 32 38 22353 -58.5 273 48 546.9 33 30 23830 -61.7 275 47 576.4 34 28 24259 -61.5 272 47 588.5 35 20 26390 -53.1 255 45 673.6 36 19 26721 -52.9 256 44 684.2 37 16 27835 -51.5 260 42 723.3 38 12 29726 -46.5 266 38 803.0 39 10 30940 -45.7 270 35 849.0 40 8.9 31724 -41.5 893.9 41 7.5 32876 -44.9 925.0 42 5.6 34842 -41.9 1018.8 43 5.3 35215 -42.3 1033.2 TRP 228 11201 -56.9 250 46 330.1 WND 196 12157 -57.6 255 76 343.6 Sounding variables and indices 1000-500 mb thick: 5599.00 m Freezing level: 684.57 mb = 3302.22 m = 10833.91 ft Wetbulb zero: 708.51 mb = 3007.82 m = 9868.06 ft Precipitable water: 0.86 inches Sfc-500 mean rel hum: 78.87 % Est. max temperature: 19.74 C = 67.54 F Sfc-Lift cond lev (LCL): 875.99 mb = 1258.66 m = 4129.40 ft T: 12.27 C 700-500 lapse rate: 5.73 C/km ThetaE index: 4.76 C Layer 850.0- 701.0 mb Conv cond level (CCL): 776.31 mb = 2255.46 m = 7399.73 ft Mean mixing ratio: 7.79 g/kg Conv temperature: 18.85 C = 65.93 F Cap Strength: 1.61 C Lifted Index: 2.37 C Risk: None Lifted Index @300 mb: 3.84 C Lifted Index @700 mb: 0.71 C Showalter Index: 2.66 C Risk: Showers probable Total Totals Index: 46.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.90 C Cross Totals Index: 21.10 C K Index: 28.60 Risk: 40-60 % chance of thunderstorms Sweat Index: 144.40 Risk: None Energy Index: 0.46 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.45 J/kg Max Up Vert Vel: 5.91 m/s Conv Inhibition (B-): 54109.86 J/kg Cap Strength: 2.31 C Lift Cond Lev (LCL): 811.79 mb = 1887.66 m = 6193.02 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 299 at 18 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 ---------------------------------------------------------- 0 904 997 120 1 -0.9 0.5 | 119 19 -17.0 9.4 1 850 1509 295 12 10.9 -5.1 | 126 6 -5.2 3.8 2 700 3106 270 20 20.0 -0.0 | 204 10 3.9 8.9 3 500 5740 265 34 33.9 3.0 | 236 21 17.8 11.8 4 400 7400 265 40 39.8 3.5 | 243 27 23.7 12.3 5 300 9410 260 36 35.5 6.3 | 232 25 19.3 15.1 6 250 10610 265 41 40.8 3.6 | 243 28 24.7 12.4 7 228 11201 250 46 43.2 15.7 | 228 37 27.1 24.6 8 200 12030 250 75 70.5 25.7 | 238 64 54.4 34.5 9 196 12157 255 76 73.4 19.7 | 244 64 57.3 28.5 10 150 13840 255 55 53.1 14.2 | 238 44 37.0 23.1 11 100 16350 270 50 50.0 -0.0 | 255 35 33.9 8.9 12 70 18560 270 50 50.0 -0.0 | 255 35 33.9 8.9 13 50 20640 270 49 49.0 -0.0 | 255 34 32.9 8.9 14 30 23830 275 47 46.8 -4.1 | 261 31 30.7 4.8 15 20 26390 255 45 43.5 11.6 | 233 34 27.4 20.5 16 10 30940 270 35 35.0 -0.0 | 245 21 18.9 8.9 Wind Parameters Mean winds (0-6000m): 268.8 at 24.5 knts Storm direction: 298.8 at 18.4 knts Shear (0-3000m) pos: 2.2 neg: 2.5 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 103.1 deg Storm rel helicity (0-3000m) pos: 73.1 neg: -7.2 tot: 65.8 m^2/s^2 ave: 21.9 10^-3 m/s^2 rel: 0.47 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 3.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.37 Bulk Shear: 47.73 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 ------------------------------------------------------------------------------- 500 295 6 121 12| 13.1 0.0 13.1| 50.6 -6.7 43.9 87.8 0.32| 22.6 7.3 1000 292 10 126 9| 6.5 1.5 8.0| 53.9 -7.2 46.6 46.6 0.36| 13.0 4.6 1500 287 12 137 7| 4.4 2.0 6.4| 58.2 -7.2 51.0 34.0 0.42| 9.8 4.1 2000 282 13 153 7| 3.3 2.4 5.6| 62.1 -7.2 54.9 27.4 0.44| 8.3 3.6 2500 278 15 167 7| 2.6 2.5 5.1| 67.4 -7.2 60.1 24.1 0.46| 7.2 3.3 3000 276 16 180 7| 2.2 2.5 4.7| 73.1 -7.2 65.8 21.9 0.47| 6.5 3.1 4000 273 19 200 9| 1.6 2.6 4.2| 83.7 -7.2 76.5 19.1 0.48| 5.5 2.7 5000 270 22 213 11| 1.3 2.6 3.9| 93.3 -7.2 86.0 17.2 0.47| 4.9 2.3 6000 269 25 222 13| 1.1 2.4 3.5|103.1 -7.2 95.8 16.0 0.46| 4.4 2.1 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20251021.00.gif