UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042600.upa.cvt Date: 0000Z 26 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:0000Z 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 106 1 925 752 SFC 898 997 8.6 7.6 93 1.0 8.0 300 2 290.6 291.8 285.8 311.3 7.31 3 872 1239 7.0 3.0 76 4.0 4.9 340 5 291.3 292.3 284.2 307.0 5.45 4 850 1449 5.6 3.0 83 2.6 4.3 15 8 292.0 293.0 284.6 308.1 5.59 5 832 1624 5.6 2.5 80 3.1 4.0 12 9 293.8 294.8 285.2 309.8 5.51 6 700 3017 -3.1 -6.1 80 3.0 -4.3 345 15 299.1 299.7 285.1 309.5 3.46 7 520 5308 -18.1 -20.1 84 2.0 -18.6 354 11 307.5 307.8 286.2 312.3 1.49 8 500 5600 -20.3 -22.4 83 2.1 -20.8 355 11 308.3 308.5 286.2 312.5 1.27 9 493 5705 -20.3 -23.7 74 3.4 -21.1 357 11 309.5 309.8 286.5 313.3 1.14 10 426 6772 -29.3 -34.3 62 5.0 -30.0 13 10 311.3 311.3 286.4 313.0 0.49 11 400 7220 -33.1 -37.5 65 4.4 -33.6 20 10 312.0 312.0 286.5 313.3 0.38 12 308 8997 -48.7 -52.9 62 4.2 -48.8 255 13 314.3 314.4 287.0 314.7 0.09 13 300 9170 -49.5 -54.2 58 4.7 -49.7 285 15 315.6 315.6 287.4 315.9 0.08 14 280 9620 -51.5 -56.5 55 5.0 -51.6 294 15 319.0 319.0 288.5 319.2 0.07 15 260 10103 -49.5 -57.5 39 8.0 -49.7 305 14 328.8 328.8 291.5 329.0 0.06 16 250 10360 -48.5 -57.5 34 9.0 -48.8 310 14 334.0 334.0 292.9 334.2 0.06 17 241 10601 -49.9 -60.9 26 11.0 -50.2 300 15 335.4 335.4 293.2 335.6 0.04 18 200 11820 -50.9 250 21 352.2 19 150 13690 -51.9 245 26 380.6 20 132 14515 -52.1 258 22 394.5 21 112 15569 -54.9 274 16 408.2 22 100 16290 -56.1 285 12 419.3 23 90 16959 -58.3 267 12 427.8 24 70 18540 -59.5 225 11 457.1 25 67 18814 -61.3 230 10 459.0 26 58 19714 -59.5 247 8 482.4 27 50 20640 -61.5 265 6 498.6 28 42 21725 -60.9 224 8 525.5 29 36 22694 -57.3 188 10 558.5 30 30 23850 -56.9 145 12 589.5 31 23 25538 -54.1 227 15 644.3 32 20 26430 -55.5 270 16 666.3 33 15 28275 -52.9 262 23 732.1 34 10 30940 -44.7 250 34 852.7 35 8.1 32356 -42.7 913.6 36 6.2 34182 -37.3 1009.3 37 6.1 34294 -37.1 1014.8 TRP 308 8997 -48.7 -52.9 62 4.2 -48.8 255 13 314.3 314.4 287.0 314.7 0.09 WND Sounding variables and indices 1000-500 mb thick: 5494.00 m Freezing level: 747.03 mb = 2520.76 m = 8270.11 ft Wetbulb zero: 768.70 mb = 2262.28 m = 7422.10 ft Precipitable water: 0.62 inches Sfc-500 mean rel hum: 81.57 % Est. max temperature: 14.91 C = 58.84 F Sfc-Lift cond lev (LCL): 884.52 mb = 1121.81 m = 3680.42 ft T: 7.78 C 700-500 lapse rate: 6.66 C/km ThetaE index: 4.31 C Layer 872.0- 850.0 mb Conv cond level (CCL): 770.38 mb = 2244.63 m = 7364.19 ft Mean mixing ratio: 5.63 g/kg Conv temperature: 14.04 C = 57.27 F Cap Strength: 2.56 C Lifted Index: 2.65 C Risk: None Lifted Index @300 mb: 4.86 C Lifted Index @700 mb: 1.51 C Showalter Index: 3.18 C Risk: None Total Totals Index: 49.20 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.90 C Cross Totals Index: 23.30 C K Index: 25.90 Risk: 40-60 % chance of thunderstorms Sweat Index: 67.00 Risk: None Energy Index: 0.88 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.50 J/kg Max Up Vert Vel: 6.56 m/s Conv Inhibition (B-): 64695.39 J/kg Cap Strength: 2.58 C Lift Cond Lev (LCL): 809.90 mb = 1841.34 m = 6041.07 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 25 at 9 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 ---------------------------------------------------------- 0 898 997 300 2 1.7 -1.0 | 218 9 5.3 6.8 1 850 1449 15 8 -2.1 -7.7 | 267 2 1.5 0.1 2 700 3017 345 15 3.9 -14.5 | 312 10 7.5 -6.7 3 500 5600 355 11 1.0 -11.0 | 305 6 4.6 -3.1 4 400 7220 20 10 -3.4 -9.4 | 354 2 0.2 -1.6 5 308 8997 255 13 12.6 3.4 | 235 20 16.2 11.2 6 300 9170 285 15 14.5 -3.9 | 258 19 18.1 3.9 7 250 10360 310 14 10.7 -9.0 | 275 14 14.3 -1.2 8 200 11820 250 21 19.7 7.2 | 237 28 23.3 15.0 9 150 13690 245 26 23.6 11.0 | 235 33 27.2 18.8 10 100 16290 285 12 11.6 -3.1 | 253 16 15.2 4.7 11 70 18540 225 11 7.8 7.8 | 216 19 11.4 15.6 12 50 20640 265 6 6.0 0.5 | 229 13 9.6 8.3 13 30 23850 145 12 -6.9 9.8 | 169 18 -3.3 17.6 14 20 26430 270 16 16.0 -0.0 | 248 21 19.6 7.8 15 10 30940 250 34 31.9 11.6 | 241 41 35.5 19.4 Wind Parameters Mean winds (0-6000m): 354.7 at 11.5 knts Storm direction: 24.7 at 8.6 knts Shear (0-3000m) pos: 1.3 neg: 1.5 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 93.0 deg Storm rel helicity (0-3000m) pos: 9.3 neg: -1.6 tot: 7.6 m^2/s^2 ave: 2.5 10^-3 m/s^2 rel: 0.31 Storm rel vorticity (0-3000m) horiz: 3.4 stream: 1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.08 Bulk Shear: 5.27 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 4 5 232 4| 8.1 0.0 8.1| 8.1 0.0 8.1 16.3 0.57| 9.3 5.3 1000 7 7 258 3| 4.1 1.4 5.5| 9.0 0.0 9.0 9.0 0.56| 6.0 3.4 1500 3 9 286 3| 2.7 1.9 4.6| 9.3 -0.1 9.2 6.1 0.46| 5.0 2.3 2000 356 10 297 5| 2.0 2.2 4.3| 9.3 -1.3 8.0 4.0 0.35| 4.6 1.6 2500 354 11 302 6| 1.6 1.8 3.4| 9.3 -1.4 7.8 3.1 0.33| 3.8 1.3 3000 352 11 304 6| 1.3 1.5 2.8| 9.3 -1.6 7.6 2.5 0.31| 3.4 1.0 4000 352 12 306 7| 1.0 1.1 2.1| 9.3 -2.3 6.9 1.7 0.27| 2.7 0.7 5000 352 12 306 6| 0.9 0.9 1.8| 10.0 -2.9 7.1 1.4 0.25| 2.4 0.6 6000 355 11 308 6| 0.9 0.7 1.7| 11.3 -2.9 8.4 1.4 0.28| 2.3 0.6 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250426.00.gif