UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042712.upa.cvt Date: 1200Z 27 APR 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 27 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 127 1 925 789 SFC 903 997 15.4 8.4 63 7.0 11.3 150 10 297.1 298.5 288.6 319.5 7.68 3 850 1503 11.4 2.4 54 9.0 6.7 145 11 298.1 299.1 286.7 314.0 5.35 4 785 2162 5.6 -0.4 65 6.0 2.7 163 10 298.7 299.6 286.4 312.9 4.73 5 771 2308 3.8 -1.2 70 5.0 1.4 168 9 298.3 299.2 286.0 311.9 4.54 6 700 3086 -2.3 -4.2 87 1.9 -3.1 190 8 299.9 300.7 286.1 312.0 4.00 7 653 3635 -5.1 -7.8 81 2.7 -6.2 196 9 302.8 303.4 286.3 312.8 3.25 8 652 3647 -5.3 -8.0 81 2.7 -6.4 196 9 302.7 303.3 286.2 312.6 3.21 9 624 3991 -7.9 -12.2 71 4.3 -9.4 200 10 303.6 304.0 285.7 311.1 2.40 10 570 4691 -11.1 -16.1 67 5.0 -12.7 208 12 307.8 308.1 286.7 313.9 1.91 11 535 5172 -17.1 -27.1 42 10.0 -19.1 214 14 306.2 306.4 284.9 308.8 0.78 12 533 5200 -17.5 -29.5 34 12.0 -19.7 214 14 306.1 306.2 284.6 308.2 0.62 13 530 5243 -16.7 -27.7 38 11.0 -19.0 215 14 307.5 307.6 285.3 310.0 0.74 14 513 5488 -17.1 -23.1 60 6.0 -18.6 218 14 309.9 310.1 286.6 313.8 1.16 15 500 5680 -18.3 -23.3 65 5.0 -19.5 220 15 310.7 310.9 286.9 314.6 1.17 16 468 6171 -22.1 -28.1 58 6.0 -23.2 232 23 311.9 312.1 287.0 314.7 0.81 17 466 6202 -22.5 -28.5 58 6.0 -23.6 233 24 311.8 312.0 286.9 314.5 0.78 18 446 6523 -25.1 -41.1 21 16.0 -26.9 240 29 312.5 312.5 286.5 313.3 0.24 19 433 6738 -25.1 -41.1 21 16.0 -27.0 246 33 315.1 315.2 287.4 316.0 0.24 20 400 7310 -29.3 -42.3 27 13.0 -30.6 260 43 316.9 317.0 288.0 317.8 0.23 21 396 7382 -29.9 -42.9 27 13.0 -31.2 260 43 317.0 317.1 288.1 317.8 0.22 22 300 9300 -44.1 -57.1 22 13.0 -44.6 250 46 323.2 323.2 289.8 323.4 0.06 23 266 10091 -51.5 -63.5 23 12.0 -51.7 265 44 323.7 323.7 289.9 323.8 0.03 24 250 10490 -54.5 250 38 325.0 25 231 10996 -56.3 252 38 329.7 26 200 11920 -53.5 255 37 348.0 27 190 12250 -54.5 253 36 351.6 28 150 13770 -53.7 245 33 377.5 29 148 13856 -54.3 246 33 378.0 30 114 15497 -59.9 265 23 396.8 31 100 16310 -60.5 275 18 410.8 32 95 16629 -60.1 272 18 417.7 33 73 18268 -60.3 257 19 449.9 34 70 18530 -59.3 255 19 457.5 35 55 20044 -60.9 244 13 486.5 36 50 20640 -60.3 240 11 501.4 37 41 21880 -59.7 228 9 532.2 38 30 23860 -54.1 210 7 597.2 39 24 25293 -51.7 238 20 643.5 40 20 26470 -52.1 260 30 676.7 41 16 27921 -50.1 268 27 727.8 42 12 29811 -47.5 278 23 799.4 43 11 30389 -45.3 282 22 827.6 44 10 31030 -41.9 285 21 863.1 45 8.4 32225 -36.3 929.2 46 7.1 33398 -33.9 984.9 TRP 266 10091 -51.5 -63.5 23 12.0 -51.7 265 44 323.7 323.7 289.9 323.8 0.03 WND Sounding variables and indices 1000-500 mb thick: 5553.00 m Freezing level: 726.77 mb = 2792.84 m = 9162.74 ft Wetbulb zero: 748.85 mb = 2543.11 m = 8343.45 ft Precipitable water: 0.62 inches Sfc-500 mean rel hum: 66.91 % Est. max temperature: 17.00 C = 62.60 F Sfc-Lift cond lev (LCL): 812.98 mb = 1871.61 m = 6140.39 ft T: 8.15 C 700-500 lapse rate: 6.17 C/km ThetaE index: 7.61 C Layer 850.0- 700.0 mb Conv cond level (CCL): 746.87 mb = 2564.38 m = 8413.21 ft Mean mixing ratio: 5.84 g/kg Conv temperature: 17.13 C = 62.84 F Cap Strength: 0.89 C Lifted Index: 0.84 C Risk: Showers probable Lifted Index @300 mb: 6.04 C Lifted Index @700 mb: -0.62 C Showalter Index: 1.57 C Risk: Showers probable Total Totals Index: 50.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.70 C Cross Totals Index: 20.70 C K Index: 30.20 Risk: 60-80 % chance of thunderstorms Sweat Index: 93.80 Risk: None Energy Index: 0.11 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 41.18 J/kg Max Up Vert Vel: 9.08 m/s Conv Inhibition (B-): 19.06 J/kg Cap Strength: 0.73 C Lift Cond Lev (LCL): 756.86 mb = 2457.41 m = 8062.26 ft Lev Free Conv (LFC): 721.86 mb = 2838.47 m = 9312.44 ft Equ Level (EL): 591.86 mb = 4399.61 m = 14434.23 ft B at Equ Level: 24.48 J/kg Max Parcel Lev (MPL): 441.86 mb = 6590.80 m = 21623.09 ft Wind level data Storm motion: 244 at 11 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 ---------------------------------------------------------- 0 903 997 150 10 -5.0 8.7 | 105 15 -14.7 4.0 1 850 1503 145 11 -6.3 9.0 | 105 17 -16.0 4.3 2 700 3086 190 8 1.4 7.9 | 111 9 -8.3 3.2 3 500 5680 220 15 9.6 11.5 | 180 7 -0.0 6.8 4 400 7310 260 43 42.3 7.5 | 265 33 32.7 2.8 5 300 9300 250 46 43.2 15.7 | 252 35 33.6 11.0 6 266 10091 265 44 43.8 3.8 | 271 34 34.2 -0.9 7 250 10490 250 38 35.7 13.0 | 252 27 26.0 8.3 8 200 11920 255 37 35.7 9.6 | 259 27 26.1 4.9 9 150 13770 245 33 29.9 13.9 | 245 22 20.2 9.3 10 100 16310 275 18 17.9 -1.6 | 307 10 8.3 -6.3 11 70 18530 255 19 18.4 4.9 | 269 9 8.7 0.2 12 50 20640 240 11 9.5 5.5 | 171 1 -0.1 0.8 13 30 23860 210 7 3.5 6.1 | 103 6 -6.2 1.4 14 20 26470 260 30 29.5 5.2 | 269 20 19.9 0.5 15 10 31030 285 21 20.3 -5.4 | 314 15 10.6 -10.1 Wind Parameters Mean winds (0-6000m): 214.1 at 14.3 knts Storm direction: 244.1 at 10.7 knts Shear (0-3000m) pos: 1.7 neg: 0.2 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 25.3 deg Storm rel helicity (0-3000m) pos: 13.2 neg: -0.6 tot: 12.7 m^2/s^2 ave: 4.2 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 2.1 stream: 0.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.59 Bulk Shear: 25.95 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 ------------------------------------------------------------------------------- 500 147 10 105 16| 0.0 1.4 1.4| 0.1 -0.1 -0.0 -0.0 -0.00| 1.4 -0.0 1000 149 11 106 16| 1.4 0.7 2.1| 4.9 -0.1 4.8 4.8 0.29| 2.1 0.6 1500 154 10 108 15| 1.8 0.5 2.3| 6.9 -0.1 6.8 4.5 0.27| 2.3 0.6 2000 159 10 109 14| 1.9 0.3 2.3| 7.1 -0.4 6.6 3.3 0.19| 2.3 0.4 2500 164 10 110 13| 1.8 0.3 2.0| 9.8 -0.6 9.3 3.7 0.27| 2.2 0.6 3000 170 10 113 12| 1.7 0.2 1.9| 13.2 -0.6 12.7 4.2 0.36| 2.1 0.8 4000 182 10 120 11| 1.7 0.2 1.9| 20.0 -0.6 19.5 4.9 0.50| 2.0 1.0 5000 194 11 132 9| 2.3 0.1 2.4| 35.1 -0.6 34.6 6.9 0.62| 2.5 1.6 6000 214 14 167 7| 3.6 0.1 3.7|101.7 -0.6 101.1 16.9 0.63| 3.9 2.5 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20250427.12.gif