UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042312.upa.cvt Date: 1200Z 23 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 23 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 41 1 925 723 SFC 896 997 24.2 7.2 34 17.0 13.9 340 4 306.8 308.2 291.3 328.5 7.12 3 850 1458 19.6 5.6 40 14.0 11.4 320 10 306.7 307.9 290.9 327.1 6.72 4 700 3081 3.6 -3.4 60 7.0 0.3 175 15 306.5 307.3 288.6 319.6 4.25 5 619 4065 -5.3 -8.2 80 2.9 -6.5 201 20 307.2 307.9 288.0 317.7 3.33 6 583 4534 -7.7 -11.3 75 3.6 -9.1 213 23 309.7 310.3 288.3 318.6 2.76 7 576 4628 -8.3 -12.2 73 3.9 -9.7 216 23 310.1 310.6 288.2 318.4 2.60 8 500 5710 -17.5 -26.5 45 9.0 -19.4 245 29 311.7 311.9 287.0 314.7 0.88 9 477 6062 -19.9 -28.9 45 9.0 -21.7 245 32 313.0 313.1 287.2 315.5 0.74 10 470 6172 -20.5 -30.5 40 10.0 -22.3 245 33 313.5 313.7 287.3 315.8 0.64 11 428 6860 -24.7 -42.7 17 18.0 -26.8 245 39 316.7 316.7 287.9 317.5 0.21 12 407 7225 -27.3 -42.3 23 15.0 -28.9 245 42 317.9 318.0 288.3 318.8 0.23 13 400 7350 -28.1 -42.1 25 14.0 -29.6 245 43 318.5 318.5 288.5 319.3 0.24 14 343 8431 -37.3 -48.3 31 11.0 -38.0 245 48 320.3 320.3 289.0 320.8 0.14 15 300 9340 -44.9 -55.9 28 11.0 -45.3 245 53 322.1 322.1 289.5 322.3 0.07 16 274 9941 -48.1 -61.1 21 13.0 -48.4 255 55 325.9 325.9 290.6 326.0 0.04 17 250 10540 -51.1 250 71 330.1 18 239 10832 -52.3 250 73 332.6 19 219 11399 -51.3 250 76 342.5 20 200 11990 -50.3 255 71 353.1 21 158 13532 -50.9 259 61 376.7 22 150 13870 -52.5 260 59 379.6 23 100 16430 -63.3 270 40 405.4 24 90 17077 -64.7 261 34 415.0 25 74 18279 -62.9 245 24 442.7 26 70 18620 -64.5 240 21 446.4 27 64 19170 -63.7 264 21 459.7 28 53 20331 -63.5 314 20 485.7 29 50 20690 -62.9 330 20 495.3 30 32 23480 -57.7 251 15 576.6 31 30 23890 -55.5 240 14 593.3 32 20 26510 -50.3 150 10 682.2 33 19 26846 -50.3 160 11 692.3 34 15 28398 -49.5 206 18 743.4 35 11 30452 -45.9 266 27 825.4 36 10 31090 -44.5 285 30 853.4 37 9.9 31157 -44.5 855.9 38 7.7 32863 -38.5 943.8 39 7.5 33044 -37.5 955.0 TRP 274 9941 -48.1 -61.1 21 13.0 -48.4 255 55 325.9 325.9 290.6 326.0 0.04 WND 219 11399 -51.3 250 76 342.5 Sounding variables and indices 1000-500 mb thick: 5669.00 m Freezing level: 667.24 mb = 3479.01 m = 11413.93 ft Wetbulb zero: 696.94 mb = 3116.00 m = 10222.97 ft Precipitable water: 0.71 inches Sfc-500 mean rel hum: 58.67 % Est. max temperature: 24.02 C = 75.23 F Sfc-Lift cond lev (LCL): 696.98 mb = 3115.55 m = 10221.50 ft T: 3.29 C 700-500 lapse rate: 8.03 C/km ThetaE index: 10.86 C Layer 850.0- 583.0 mb Conv cond level (CCL): 686.55 mb = 3236.20 m = 10617.34 ft Mean mixing ratio: 6.55 g/kg Conv temperature: 23.98 C = 75.17 F Cap Strength: -0.09 C Lifted Index: -4.63 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -2.44 C Lifted Index @700 mb: -0.23 C Showalter Index: -4.86 C Risk: Severe thunderstorms possible Total Totals Index: 60.20 C Risk: Severe Thunderstorms probable Vertical Totals Index: 37.10 C Cross Totals Index: 23.10 C K Index: 35.70 Risk: > 80 % chance of thunderstorms Sweat Index: 340.20 Risk: Showers and thunderstorms possible Energy Index: -2.49 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 778.45 J/kg Max Up Vert Vel: 39.46 m/s Conv Inhibition (B-): 0.50 J/kg Cap Strength: 0.11 C Lift Cond Lev (LCL): 685.45 mb = 3249.07 m = 10659.56 ft Lev Free Conv (LFC): 680.45 mb = 3307.65 m = 10851.75 ft Equ Level (EL): 270.45 mb = 10026.03 m = 32893.39 ft B at Equ Level: 774.74 J/kg Max Parcel Lev (MPL): 190.45 mb = 12310.08 m = 40386.92 ft Wind level data Storm motion: 264 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 ---------------------------------------------------------- 0 896 997 340 4 1.4 -3.8 | 69 16 -14.5 -5.5 1 850 1458 320 10 6.4 -7.7 | 45 13 -9.5 -9.4 2 700 3081 175 15 -1.3 14.9 | 128 22 -17.2 13.2 3 500 5710 245 29 26.3 12.3 | 225 15 10.4 10.6 4 400 7350 245 43 39.0 18.2 | 234 28 23.1 16.5 5 300 9340 245 53 48.0 22.4 | 237 38 32.1 20.7 6 274 9941 255 55 53.1 14.2 | 251 39 37.2 12.5 7 250 10540 250 71 66.7 24.3 | 246 56 50.8 22.6 8 219 11399 250 76 71.4 26.0 | 246 61 55.5 24.3 9 200 11990 255 71 68.6 18.4 | 252 55 52.7 16.7 10 150 13870 260 59 58.1 10.2 | 259 43 42.2 8.5 11 100 16430 270 40 40.0 -0.0 | 274 24 24.1 -1.7 12 70 18620 240 21 18.2 10.5 | 195 9 2.3 8.8 13 50 20690 330 20 10.0 -17.3 | 17 20 -5.9 -19.0 14 30 23890 240 14 12.1 7.0 | 144 7 -3.8 5.3 15 20 26510 150 10 -5.0 8.7 | 108 22 -20.9 7.0 16 10 31090 285 30 29.0 -7.8 | 306 16 13.1 -9.5 Wind Parameters Mean winds (0-6000m): 233.9 at 21.3 knts Storm direction: 263.9 at 16.0 knts Shear (0-3000m) pos: 1.2 neg: 3.2 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): 81.9 deg Storm rel helicity (0-3000m) pos: 58.4 neg: -41.8 tot: 16.6 m^2/s^2 ave: 5.5 10^-3 m/s^2 rel: 0.15 Storm rel vorticity (0-3000m) horiz: 8.1 stream: 1.2 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 11.47 Bulk Shear: 67.85 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 ------------------------------------------------------------------------------- 500 325 7 57 14| 0.0 6.8 6.8| 0.0 -23.9 -23.9 -47.7 -0.89| 7.2 -6.4 1000 306 9 51 11| 0.0 5.6 5.6| 3.6 -24.7 -21.1 -21.1 -0.28| 8.0 -2.2 1500 281 10 59 7| 0.0 5.2 5.2| 12.1 -24.7 -12.6 -8.4 0.08| 8.7 0.7 2000 248 11 114 6| 0.0 4.8 4.8| 12.2 -36.7 -24.4 -12.2 -0.01| 9.4 -0.1 2500 212 12 132 13| 0.5 3.8 4.4| 32.5 -41.8 -9.3 -3.7 0.05| 8.6 0.4 3000 204 13 134 15| 1.2 3.2 4.4| 58.4 -41.8 16.6 5.5 0.15| 8.1 1.2 4000 212 16 147 14| 2.3 2.4 4.7|110.6 -41.8 68.9 17.2 0.31| 7.6 2.3 5000 227 18 167 11| 2.9 1.9 4.8|152.8 -41.8 111.0 22.2 0.40| 7.3 3.0 6000 234 21 187 11| 2.4 2.0 4.4|164.5 -41.8 122.7 20.4 0.39| 6.8 2.6 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250423.12.gif