UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120112.upa.cvt Date: 1200Z 1 DEC 25 Searching for LTBM... Searching the city database file for: LTBM ... Date:1200Z 1 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 155 1 925 808 SFC 904 997 12.0 5.0 62 7.0 8.2 80 6 293.5 294.6 285.7 311.0 6.05 3 883 1194 10.2 -0.8 46 11.0 4.9 145 7 293.6 294.3 283.7 305.6 4.08 4 850 1510 7.4 -1.6 53 9.0 3.2 250 9 293.9 294.6 283.7 305.7 4.00 5 719 2854 -6.5 -10.7 72 4.2 -7.9 293 19 293.0 293.5 281.4 300.1 2.35 6 700 3063 -7.5 -11.6 72 4.1 -8.9 300 21 294.2 294.6 281.7 301.0 2.25 7 663 3485 -8.3 -16.3 52 8.0 -10.7 299 26 297.9 298.2 282.5 302.9 1.61 8 657 3555 -9.3 -20.3 40 11.0 -12.2 299 26 297.5 297.7 281.8 301.2 1.16 9 555 4841 -16.1 -38.1 13 22.0 -19.3 297 41 304.2 304.2 283.4 305.1 0.26 10 501 5605 -20.5 -44.5 10 24.0 -23.2 295 50 307.9 307.9 284.7 308.4 0.15 11 500 5620 -20.5 -46.5 8 26.0 -23.3 295 50 308.0 308.1 284.7 308.5 0.12 12 442 6524 -27.5 -62.5 2 35.0 -29.5 292 59 310.3 310.3 285.4 310.3 0.02 13 404 7169 -31.3 290 66 313.4 14 400 7240 -32.1 290 67 313.3 15 315 8884 -43.1 282 69 320.1 16 300 9210 -45.3 280 69 321.5 17 251 10384 -53.3 275 78 326.5 18 250 10410 -53.3 275 79 326.8 19 221 11201 -55.3 272 70 335.5 20 200 11840 -54.3 270 62 346.8 21 181 12478 -54.3 263 56 356.8 22 150 13670 -57.3 250 46 371.4 23 112 15513 -58.1 257 40 402.2 24 100 16220 -62.3 260 37 407.4 25 93 16669 -62.3 257 39 415.9 26 70 18420 -63.5 245 49 448.5 27 64 18971 -66.1 248 47 454.5 28 55 19909 -60.5 252 43 487.4 29 50 20500 -64.5 255 41 491.5 30 46 21013 -64.3 256 43 503.8 31 36 22536 -59.5 258 49 552.8 32 30 23680 -60.1 260 53 580.8 33 25 24822 -60.5 267 63 610.7 34 20 26230 -56.3 275 75 663.8 35 18 26898 -56.3 274 78 684.2 36 14 28489 -57.3 272 87 731.7 37 12 29472 -53.1 271 92 779.6 38 10 30640 -55.5 270 98 812.4 39 8.6 31595 -58.3 837.3 40 7.3 32637 -54.1 894.6 41 6.2 33692 -51.1 950.2 42 5.0 35094 -50.3 275 135 1014.3 43 4.8 35360 -50.1 1027.0 TRP 251 10384 -53.3 275 78 326.5 WND 5.0 35094 -50.3 275 135 1014.3 Sounding variables and indices 1000-500 mb thick: 5465.00 m Freezing level: 780.26 mb = 2225.43 m = 7301.21 ft Wetbulb zero: 812.54 mb = 1871.92 m = 6141.39 ft Precipitable water: 0.35 inches Sfc-500 mean rel hum: 42.33 % Est. max temperature: 11.86 C = 53.35 F Sfc-Lift cond lev (LCL): 813.09 mb = 1866.42 m = 6123.37 ft T: 3.71 C 700-500 lapse rate: 5.08 C/km ThetaE index: 5.58 C Layer 719.0- 700.0 mb Conv cond level (CCL): 749.45 mb = 2520.85 m = 8270.42 ft Mean mixing ratio: 4.08 g/kg Conv temperature: 11.83 C = 53.29 F Cap Strength: 4.44 C Lifted Index: 4.56 C Risk: None Lifted Index @300 mb: 11.34 C Lifted Index @700 mb: -1.19 C Showalter Index: 4.62 C Risk: None Total Totals Index: 46.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.90 C Cross Totals Index: 18.90 C K Index: 22.20 Risk: 20-40 % chance of thunderstorms Sweat Index: 68.00 Risk: None Energy Index: 0.57 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 32.43 J/kg Max Up Vert Vel: 8.05 m/s Conv Inhibition (B-): 0.22 J/kg Cap Strength: 4.30 C Lift Cond Lev (LCL): 744.85 mb = 2570.29 m = 8432.62 ft Lev Free Conv (LFC): 739.85 mb = 2624.37 m = 8610.04 ft Equ Level (EL): 669.85 mb = 3404.90 m = 11170.80 ft B at Equ Level: 30.65 J/kg Max Parcel Lev (MPL): 589.85 mb = 4377.15 m = 14360.55 ft Wind level data Storm motion: 323 at 25 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 ---------------------------------------------------------- 0 904 997 80 6 -5.9 -1.0 | 133 28 -20.8 19.1 1 850 1510 250 9 8.5 3.1 | 164 24 -6.4 23.2 2 700 3063 300 21 18.2 -10.5 | 199 10 3.3 9.6 3 500 5620 295 50 45.3 -21.1 | 272 30 30.4 -1.0 4 400 7240 290 67 63.0 -22.9 | 273 48 48.1 -2.8 5 300 9210 280 69 68.0 -12.0 | 261 54 53.1 8.1 6 251 10384 275 78 77.7 -6.8 | 258 64 62.8 13.3 7 250 10410 275 79 78.7 -6.9 | 258 65 63.8 13.2 8 200 11840 270 62 62.0 -0.0 | 247 51 47.1 20.1 9 150 13670 250 46 43.2 15.7 | 218 46 28.3 35.8 10 100 16220 260 37 36.4 6.4 | 219 34 21.5 26.5 11 70 18420 245 49 44.4 20.7 | 216 50 29.5 40.8 12 50 20500 255 41 39.6 10.6 | 219 39 24.7 30.7 13 30 23680 260 53 52.2 9.2 | 232 47 37.3 29.3 14 20 26230 275 75 74.7 -6.5 | 257 61 59.8 13.6 15 10 30640 270 98 98.0 -0.0 | 256 86 83.1 20.1 Wind Parameters Mean winds (0-6000m): 293.5 at 33.4 knts Storm direction: 323.5 at 25.0 knts Shear (0-3000m) pos: 5.3 neg: 1.0 tot: 6.3 10-3/s Storm rel Dir Shear (0-3000m): 115.6 deg Storm rel helicity (0-3000m) pos: 216.3 neg: 0.0 tot: 216.3 m^2/s^2 ave: 72.1 10^-3 m/s^2 rel: 0.74 Storm rel vorticity (0-3000m) horiz: 8.6 stream: 6.4 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 0.26 Bulk Shear: 126.67 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 ------------------------------------------------------------------------------- 500 229 7 160 27| 15.2 0.0 15.2|134.0 0.0 134.0 268.1 0.78| 22.1 17.2 1000 255 9 165 23| 9.6 0.0 9.6|158.1 0.0 158.1 158.1 0.77| 13.8 10.7 1500 268 11 169 21| 7.7 0.0 7.7|176.0 0.0 176.0 117.3 0.75| 11.1 8.3 2000 282 13 173 18| 6.6 0.0 6.6|187.1 0.0 187.1 93.5 0.70| 10.0 7.0 2500 289 15 177 15| 6.3 0.0 6.3|201.3 0.0 201.3 80.5 0.73| 9.2 6.7 3000 292 17 184 14| 5.3 1.0 6.3|216.3 0.0 216.3 72.1 0.74| 8.6 6.4 4000 294 22 207 12| 4.0 2.2 6.2|244.4 0.0 244.4 61.1 0.70| 8.0 5.5 5000 294 28 230 14| 3.2 2.9 6.1|264.3 0.0 264.3 52.9 0.63| 7.5 4.7 6000 293 33 247 17| 2.6 3.3 6.0|268.4 -0.2 268.2 44.7 0.55| 7.2 4.0 Wrote GIF file: /home/apache/climate/data/raob//LTBM/skewt/LTBM.skewt.20251201.12.gif