UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101812.upa.cvt Date: 1200Z 18 OCT 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 18 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 140 1 925 815 SFC 906 997 21.6 7.6 40 14.0 13.2 125 11 303.2 304.5 290.2 324.9 7.24 3 850 1543 17.0 1.0 34 16.0 8.5 250 8 304.0 304.9 288.3 318.7 4.84 4 700 3156 1.6 -3.0 71 4.6 -0.6 250 16 304.3 305.1 288.0 317.7 4.38 5 664 3580 -1.3 -6.3 69 5.0 -3.5 252 18 305.6 306.3 287.7 316.8 3.59 6 620 4125 -3.3 -12.3 50 9.0 -6.7 254 21 309.4 309.8 287.8 317.1 2.40 7 617 4163 -2.5 -16.5 33 14.0 -7.3 254 22 310.7 311.1 287.5 316.3 1.70 8 609 4267 -2.9 -17.9 30 15.0 -7.9 254 22 311.4 311.7 287.6 316.5 1.53 9 588 4545 -2.7 -45.7 2 43.0 -10.3 255 24 314.8 314.8 287.2 315.2 0.11 10 574 4736 -4.1 -46.1 2 42.0 -11.3 256 25 315.3 315.4 287.3 315.7 0.11 11 500 5810 -11.9 -28.9 23 17.0 -15.9 260 31 318.5 318.7 289.0 321.0 0.70 12 457 6492 -16.9 -34.9 19 18.0 -20.1 262 34 320.6 320.7 289.4 322.1 0.43 13 400 7480 -23.5 -56.5 3 33.0 -26.3 265 39 324.4 324.5 290.2 324.6 0.05 14 367 8105 -28.7 -45.7 18 17.0 -30.4 259 44 325.6 325.6 290.6 326.3 0.17 15 360 8243 -29.9 -42.9 27 13.0 -31.3 258 46 325.8 325.8 290.7 326.7 0.24 16 342 8608 -32.5 -53.5 11 21.0 -34.0 254 49 327.1 327.1 291.0 327.4 0.08 17 300 9520 -39.7 245 57 329.4 18 250 10740 -49.1 245 60 333.1 19 200 12160 -60.9 250 70 336.3 20 190 12478 -63.3 255 62 337.4 21 183 12710 -63.1 257 61 341.4 22 155 13744 -59.3 264 55 364.5 23 150 13950 -60.3 265 54 366.2 24 113 15724 -61.1 258 50 395.6 25 100 16490 -59.5 255 48 412.8 26 94 16875 -60.9 258 46 417.4 27 73 18425 -65.9 273 36 438.1 28 70 18680 -64.1 275 34 447.3 29 59 19733 -62.7 272 35 472.8 30 50 20760 -60.7 270 35 500.4 31 41 21990 -61.5 270 33 527.7 32 34 23158 -58.5 270 31 564.6 33 30 23940 -60.5 270 30 579.7 34 27 24599 -58.9 270 33 601.9 35 20 26510 -52.9 270 40 674.3 36 18 27188 -53.9 269 41 691.7 37 14 28807 -52.5 267 43 748.0 38 10 30990 -50.7 265 46 830.3 39 9.6 31256 -49.9 843.1 40 6.5 33859 -40.7 981.4 41 5.2 35393 -36.1 1066.8 42 5.0 35667 -33.3 280 61 1091.4 43 4.9 35810 -31.9 1104.3 44 4.6 36255 -33.5 1116.9 TRP 190 12478 -63.3 255 62 337.4 WND 5.0 35667 -33.3 280 61 1091.4 Sounding variables and indices 1000-500 mb thick: 5670.00 m Freezing level: 680.14 mb = 3389.73 m = 11121.02 ft Wetbulb zero: 709.41 mb = 3045.04 m = 9990.18 ft Precipitable water: 0.57 inches Sfc-500 mean rel hum: 39.25 % Est. max temperature: 22.63 C = 72.73 F Sfc-Lift cond lev (LCL): 736.03 mb = 2739.04 m = 8986.24 ft T: 5.58 C 700-500 lapse rate: 5.09 C/km ThetaE index: 8.12 C Layer 850.0- 620.0 mb Conv cond level (CCL): 672.86 mb = 3473.29 m = 11395.16 ft Mean mixing ratio: 5.47 g/kg Conv temperature: 23.64 C = 74.55 F Cap Strength: 5.07 C Lifted Index: 4.31 C Risk: None Lifted Index @300 mb: 6.92 C Lifted Index @700 mb: 0.43 C Showalter Index: 5.25 C Risk: None Total Totals Index: 41.80 C Risk: None Vertical Totals Index: 28.90 C Cross Totals Index: 12.90 C K Index: 25.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 59.00 Risk: None Energy Index: 0.54 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.81 J/kg Max Up Vert Vel: 2.76 m/s Conv Inhibition (B-): 68346.16 J/kg Cap Strength: 5.03 C Lift Cond Lev (LCL): 687.00 mb = 3306.43 m = 10847.72 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 286 at 16 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 ---------------------------------------------------------- 0 906 997 125 11 -9.0 6.3 | 114 27 -24.4 10.8 1 850 1543 250 8 7.5 2.7 | 132 11 -7.9 7.3 2 700 3156 250 16 15.0 5.5 | 178 10 -0.4 10.0 3 500 5810 260 31 30.5 5.4 | 237 18 15.1 9.9 4 400 7480 265 39 38.9 3.4 | 251 25 23.4 7.9 5 300 9520 245 57 51.7 24.1 | 232 46 36.2 28.6 6 250 10740 245 60 54.4 25.4 | 233 49 38.9 29.9 7 200 12160 250 70 65.8 23.9 | 241 58 50.3 28.5 8 190 12478 255 62 59.9 16.0 | 245 49 44.5 20.6 9 150 13950 265 54 53.8 4.7 | 256 39 38.4 9.2 10 100 16490 255 48 46.4 12.4 | 241 35 30.9 16.9 11 70 18680 275 34 33.9 -3.0 | 265 19 18.4 1.6 12 50 20760 270 35 35.0 -0.0 | 257 20 19.6 4.5 13 30 23940 270 30 30.0 -0.0 | 253 15 14.6 4.5 14 20 26510 270 40 40.0 -0.0 | 260 25 24.6 4.5 15 10 30990 265 46 45.8 4.0 | 254 32 30.4 8.5 Wind Parameters Mean winds (0-6000m): 256.3 at 21.4 knts Storm direction: 286.3 at 16.1 knts Shear (0-3000m) pos: 4.2 neg: 0.9 tot: 5.0 10-3/s Storm rel Dir Shear (0-3000m): 88.9 deg Storm rel helicity (0-3000m) pos: 93.0 neg: -3.5 tot: 89.5 m^2/s^2 ave: 29.8 10^-3 m/s^2 rel: 0.63 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 3.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.05 Bulk Shear: 77.30 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 ------------------------------------------------------------------------------- 500 162 10 127 23| 16.7 0.0 16.7| 60.6 -2.0 58.6 117.2 0.48| 19.9 9.6 1000 221 9 141 15| 9.7 0.0 9.7| 65.6 -3.5 62.1 62.1 0.47| 11.7 5.5 1500 236 10 145 12| 6.5 0.9 7.3| 71.9 -3.5 68.3 45.6 0.52| 8.7 4.5 2000 242 11 150 11| 4.8 1.3 6.1| 78.1 -3.5 74.6 37.3 0.56| 7.1 4.0 2500 245 12 155 11| 4.4 1.0 5.4| 85.3 -3.5 81.8 32.7 0.60| 6.3 3.8 3000 247 13 162 10| 4.2 0.9 5.0| 93.0 -3.5 89.5 29.8 0.63| 5.7 3.6 4000 251 16 177 10| 3.9 0.6 4.5|109.6 -3.5 106.1 26.5 0.66| 5.1 3.3 5000 254 19 195 10| 3.7 0.5 4.2|127.7 -3.5 124.1 24.8 0.66| 4.6 3.1 6000 256 21 209 11| 3.5 0.4 3.9|145.4 -3.5 141.8 23.6 0.66| 4.3 2.8 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20251018.12.gif