UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 26 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 78 1 925 745 SFC 898 997 18.2 6.2 45 12.0 11.3 320 2 300.5 301.7 288.8 320.2 6.63 3 850 1463 12.4 3.4 54 9.0 7.5 270 8 299.1 300.2 287.5 316.2 5.75 4 815 1813 8.8 1.8 61 7.0 5.2 271 9 298.9 299.9 287.1 314.8 5.35 5 708 2957 -1.3 -5.8 71 4.5 -3.2 275 13 300.1 300.7 285.6 310.7 3.50 6 700 3048 -1.9 -6.4 71 4.5 -3.8 275 13 300.4 301.0 285.5 310.7 3.38 7 683 3243 -3.3 -7.4 73 4.1 -5.0 275 14 300.9 301.5 285.6 310.8 3.21 8 644 3705 -6.9 -12.9 62 6.0 -8.9 276 17 302.0 302.4 284.9 308.8 2.20 9 616 4050 -8.9 -17.9 48 9.0 -11.6 277 19 303.5 303.8 284.7 308.4 1.52 10 608 4151 -8.9 -20.9 37 12.0 -12.2 277 19 304.7 304.9 284.8 308.5 1.19 11 572 4622 -10.7 -32.7 15 22.0 -15.0 278 22 307.9 308.0 285.1 309.4 0.43 12 534 5146 -15.1 -38.1 12 23.0 -18.7 279 25 308.8 308.8 285.2 309.7 0.27 13 500 5640 -18.7 -42.7 10 24.0 -21.8 280 28 310.2 310.3 285.7 310.9 0.18 14 400 7270 -32.1 -45.1 26 13.0 -33.1 280 33 313.3 313.3 286.7 313.9 0.17 15 352 8163 -38.1 -51.1 24 13.0 -38.8 288 50 316.8 316.9 287.8 317.2 0.10 16 311 9008 -42.9 -57.5 19 14.5 -43.5 295 66 321.6 321.6 289.3 321.8 0.05 17 300 9250 -44.3 -59.3 17 15.0 -44.8 295 66 322.9 322.9 289.7 323.1 0.04 18 258 10246 -51.7 295 64 326.3 19 250 10450 -52.5 290 62 328.0 20 222 11208 -54.9 282 56 335.7 21 200 11870 -55.3 275 51 345.2 22 197 11967 -55.3 275 50 346.7 23 167 13023 -55.9 278 40 362.5 24 150 13710 -54.9 280 34 375.5 25 123 14983 -53.3 260 27 400.3 26 100 16300 -58.3 240 19 415.1 27 88 17102 -58.7 262 17 429.7 28 70 18530 -60.7 300 14 454.5 29 69 18620 -60.1 297 14 457.7 30 64 19092 -57.3 281 12 473.8 31 52 20396 -60.3 238 9 495.8 32 50 20640 -60.3 230 8 501.4 33 40 22039 -57.9 250 9 540.4 34 32 23456 -54.7 269 10 584.6 35 30 23870 -53.7 275 10 598.2 36 20 26470 -52.7 250 12 674.9 37 12 29807 -47.9 265 37 798.0 38 10 31020 -44.3 270 46 854.2 39 9.8 31155 -44.3 859.1 TRP 258 10246 -51.7 295 64 326.3 WND 311 9008 -42.9 -57.5 19 14.5 -43.5 295 66 321.6 321.6 289.3 321.8 0.05 Sounding variables and indices 1000-500 mb thick: 5562.00 m Freezing level: 721.77 mb = 2810.16 m = 9219.57 ft Wetbulb zero: 748.90 mb = 2500.87 m = 8204.86 ft Precipitable water: 0.52 inches Sfc-500 mean rel hum: 46.65 % Est. max temperature: 17.44 C = 63.40 F Sfc-Lift cond lev (LCL): 750.53 mb = 2483.19 m = 8146.84 ft T: 2.89 C 700-500 lapse rate: 6.48 C/km ThetaE index: 9.48 C Layer 850.0- 683.0 mb Conv cond level (CCL): 735.48 mb = 2647.86 m = 8687.10 ft Mean mixing ratio: 5.78 g/kg Conv temperature: 17.57 C = 63.63 F Cap Strength: 0.35 C Lifted Index: -0.38 C Risk: Thunderstorms probable Lifted Index @300 mb: 4.90 C Lifted Index @700 mb: -0.87 C Showalter Index: -0.15 C Risk: Thunderstorms probable Total Totals Index: 53.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 31.10 C Cross Totals Index: 22.10 C K Index: 30.00 Risk: 60-80 % chance of thunderstorms Sweat Index: 168.80 Risk: None Energy Index: -1.06 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 129.66 J/kg Max Up Vert Vel: 16.10 m/s Conv Inhibition (B-): 6.87 J/kg Cap Strength: 1.03 C Lift Cond Lev (LCL): 739.74 mb = 2600.88 m = 8532.95 ft Lev Free Conv (LFC): 724.74 mb = 2767.41 m = 9079.30 ft Equ Level (EL): 574.74 mb = 4585.13 m = 15042.89 ft B at Equ Level: 75.52 J/kg Max Parcel Lev (MPL): 304.74 mb = 9144.37 m = 30000.84 ft Wind level data Storm motion: 308 at 14 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 ---------------------------------------------------------- 0 898 997 320 2 1.3 -1.5 | 126 12 -10.0 7.4 1 850 1463 270 8 8.0 -0.0 | 160 9 -3.3 8.9 2 700 3048 275 13 13.0 -1.1 | 192 8 1.7 7.8 3 500 5640 280 28 27.6 -4.9 | 256 17 16.3 4.0 4 400 7270 280 33 32.5 -5.7 | 262 21 21.2 3.2 5 311 9008 295 66 59.8 -27.9 | 291 52 48.6 -19.0 6 300 9250 295 66 59.8 -27.9 | 291 52 48.6 -19.0 7 258 10246 295 64 58.0 -27.0 | 291 50 46.7 -18.2 8 250 10450 290 62 58.3 -21.2 | 285 49 47.0 -12.3 9 200 11870 275 51 50.8 -4.4 | 264 40 39.5 4.4 10 150 13710 280 34 33.5 -5.9 | 262 22 22.2 3.0 11 100 16300 240 19 16.5 9.5 | 196 19 5.2 18.4 12 70 18530 300 14 12.1 -7.0 | 204 2 0.9 1.9 13 50 20640 230 8 6.1 5.1 | 160 15 -5.1 14.0 14 30 23870 275 10 10.0 -0.9 | 171 8 -1.3 8.0 15 20 26470 250 12 11.3 4.1 | 180 13 0.0 13.0 16 10 31020 270 46 46.0 -0.0 | 256 36 34.7 8.9 Wind Parameters Mean winds (0-6000m): 278.3 at 19.1 knts Storm direction: 308.3 at 14.4 knts Shear (0-3000m) pos: 1.8 neg: 1.2 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 100.3 deg Storm rel helicity (0-3000m) pos: 36.6 neg: 0.0 tot: 36.6 m^2/s^2 ave: 12.2 10^-3 m/s^2 rel: 0.86 Storm rel vorticity (0-3000m) horiz: 3.1 stream: 2.7 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 5.04 Bulk Shear: 25.70 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 ------------------------------------------------------------------------------- 500 278 5 143 10| 0.0 7.2 7.2| 14.3 0.0 14.3 28.5 0.75| 7.8 5.8 1000 274 7 153 9| 0.8 3.6 4.4| 17.7 0.0 17.7 17.7 0.78| 4.7 3.7 1500 273 8 160 9| 1.1 2.4 3.5| 21.2 0.0 21.2 14.1 0.80| 3.7 3.0 2000 274 9 166 9| 1.2 1.8 3.0| 24.5 0.0 24.5 12.3 0.82| 3.2 2.6 2500 274 10 172 8| 1.6 1.4 3.0| 30.4 0.0 30.4 12.1 0.85| 3.1 2.7 3000 275 11 180 8| 1.8 1.2 3.0| 36.6 0.0 36.6 12.2 0.86| 3.1 2.7 4000 276 14 199 8| 2.1 0.9 3.0| 49.4 0.0 49.4 12.4 0.83| 3.1 2.5 5000 278 17 218 8| 2.2 0.7 2.9| 60.3 0.0 60.3 12.1 0.78| 3.0 2.3 6000 278 19 231 10| 1.8 0.8 2.7| 65.8 0.0 65.8 11.0 0.74| 2.7 2.0 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250426.12.gif