UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120612.upa.cvt Date: 1200Z 6 DEC 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 6 DEC 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 86 1 925 735 SFC 896 997 10.0 6.0 76 4.0 7.8 125 7 292.2 293.3 285.7 311.0 6.55 3 850 1435 6.4 1.6 71 4.8 4.0 150 17 292.9 293.8 284.4 307.5 5.05 4 782 2115 2.2 -1.2 78 3.4 0.6 154 20 295.4 296.2 284.8 308.6 4.48 5 700 3002 -3.3 -6.2 80 2.9 -4.5 160 25 298.8 299.5 285.0 309.2 3.43 6 500 5580 -20.1 -24.0 71 3.9 -21.0 180 32 308.5 308.7 286.1 312.2 1.10 7 497 5625 -20.1 -24.4 69 4.3 -21.0 180 32 309.1 309.3 286.2 312.6 1.07 8 463 6148 -24.3 -28.6 68 4.3 -25.1 178 30 310.2 310.3 286.3 312.8 0.78 9 400 7200 -33.1 -37.4 65 4.3 -33.6 175 26 312.0 312.0 286.5 313.3 0.38 10 300 9150 -50.1 -56.1 49 6.0 -50.3 140 24 314.7 314.7 287.1 315.0 0.06 11 250 10320 -59.5 170 41 317.6 12 248 10370 -60.1 175 42 317.4 13 240 10575 -60.1 180 42 320.4 14 227 10923 -60.5 187 43 325.0 15 200 11720 -56.1 205 44 343.9 16 184 12250 -56.5 208 43 351.6 17 150 13540 -59.1 215 42 368.3 18 142 13884 -59.1 219 41 374.1 19 110 15485 -59.3 238 38 402.0 20 100 16080 -61.1 245 37 409.7 21 95 16401 -59.3 244 37 419.3 22 70 18320 -59.3 240 40 457.5 23 55 19845 -56.5 244 50 496.6 24 50 20450 -57.3 245 54 508.4 25 44 21264 -55.5 245 50 531.8 26 41 21719 -52.5 245 48 550.1 27 31 23512 -57.1 245 39 583.5 28 30 23720 -56.3 245 38 591.2 29 25 24865 -60.3 254 55 611.3 30 20 26260 -58.3 265 75 657.7 31 18 26921 -59.6 265 81 673.7 32 17 27278 -60.3 682.6 TRP 248 10370 -60.1 175 42 317.4 WND 18 26921 -59.6 265 81 673.7 Sounding variables and indices 1000-500 mb thick: 5494.00 m Freezing level: 749.20 mb = 2469.70 m = 8102.59 ft Wetbulb zero: 772.26 mb = 2215.25 m = 7267.78 ft Precipitable water: 0.58 inches Sfc-500 mean rel hum: 76.04 % Est. max temperature: 14.55 C = 58.18 F Sfc-Lift cond lev (LCL): 843.17 mb = 1500.80 m = 4923.83 ft T: 5.99 C 700-500 lapse rate: 6.52 C/km ThetaE index: 3.47 C Layer 850.0- 782.0 mb Conv cond level (CCL): 755.89 mb = 2386.75 m = 7830.46 ft Mean mixing ratio: 5.26 g/kg Conv temperature: 14.15 C = 57.47 F Cap Strength: 1.66 C Lifted Index: 3.14 C Risk: None Lifted Index @300 mb: 4.61 C Lifted Index @700 mb: 1.54 C Showalter Index: 3.79 C Risk: None Total Totals Index: 48.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.50 C Cross Totals Index: 21.70 C K Index: 25.20 Risk: 40-60 % chance of thunderstorms Sweat Index: 85.20 Risk: None Energy Index: 0.94 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.97 J/kg Max Up Vert Vel: 4.68 m/s Conv Inhibition (B-): 43572.13 J/kg Cap Strength: 3.12 C Lift Cond Lev (LCL): 791.57 mb = 2015.70 m = 6613.10 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 199 at 19 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 ---------------------------------------------------------- 0 896 997 125 7 -5.7 4.0 | 40 19 -12.1 -14.2 1 850 1435 150 17 -8.5 14.7 | 77 15 -14.8 -3.5 2 700 3002 160 25 -8.6 23.5 | 110 16 -14.9 5.3 3 500 5580 180 32 0.0 32.0 | 155 15 -6.3 13.8 4 400 7200 175 26 -2.3 25.9 | 132 12 -8.6 7.7 5 300 9150 140 24 -15.4 18.4 | 90 22 -21.8 0.2 6 250 10320 170 41 -7.1 40.4 | 149 26 -13.5 22.2 7 248 10370 175 42 -3.7 41.8 | 157 26 -10.0 23.6 8 200 11720 205 44 18.6 39.9 | 210 25 12.3 21.7 9 150 13540 215 42 24.1 34.4 | 228 24 17.8 16.2 10 100 16080 245 37 33.5 15.6 | 275 27 27.2 -2.6 11 70 18320 240 40 34.6 20.0 | 266 28 28.3 1.8 12 50 20450 245 54 48.9 22.8 | 264 43 42.6 4.6 13 30 23720 245 38 34.4 16.1 | 274 28 28.1 -2.2 14 20 26260 265 75 74.7 6.5 | 280 69 68.4 -11.7 Wind Parameters Mean winds (0-6000m): 169.2 at 25.7 knts Storm direction: 199.2 at 19.3 knts Shear (0-3000m) pos: 4.0 neg: 0.0 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 85.5 deg Storm rel helicity (0-3000m) pos: 102.2 neg: 0.0 tot: 102.2 m^2/s^2 ave: 34.1 10^-3 m/s^2 rel: 0.97 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 4.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.35 Bulk Shear: 30.92 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 ------------------------------------------------------------------------------- 500 144 13 60 16| 11.7 0.0 11.7| 50.1 0.0 50.1 100.1 0.96| 12.0 11.5 1000 149 16 71 15| 7.3 0.0 7.3| 61.1 0.0 61.1 61.1 0.96| 7.4 7.2 1500 152 17 79 15| 5.8 0.0 5.8| 72.4 0.0 72.4 48.3 0.97| 5.9 5.7 2000 154 19 86 15| 5.1 0.0 5.1| 84.1 0.0 84.1 42.1 0.97| 5.2 5.0 2500 156 20 91 15| 4.4 0.0 4.4| 93.1 0.0 93.1 37.2 0.97| 4.6 4.5 3000 158 21 97 14| 4.0 0.0 4.0|102.2 0.0 102.2 34.1 0.97| 4.2 4.1 4000 163 23 107 14| 3.4 0.0 3.4|121.1 0.0 121.1 30.3 0.98| 3.8 3.7 5000 167 25 117 13| 2.9 0.1 3.0|132.5 -4.9 127.6 25.5 0.90| 3.5 3.1 6000 169 26 122 13| 2.4 0.5 2.9|132.5 -16.4 116.1 19.4 0.71| 3.2 2.3 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20251206.12.gif