UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122500.upa.cvt Date: 0000Z 25 DEC 25 Searching for LT220... Searching the city database file for: LT220 ... Date:0000Z 25 DEC 25 Station: LT220 WMO ident: 17220 Latitude: 38.43 Longitude: 27.17 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1015 25 13.4 12.0 91 1.4 12.6 140 6 285.3 286.8 285.1 309.4 8.70 1 1000 150 14.2 8.2 67 6.0 10.9 135 21 287.4 288.5 284.0 306.5 6.83 2 994 201 14.2 8.2 67 6.0 10.9 139 21 287.8 289.0 284.2 307.2 6.87 3 982 304 13.2 7.2 67 6.0 9.9 148 20 287.8 289.0 283.8 306.2 6.49 4 925 807 11.4 6.8 73 4.6 8.9 190 17 291.0 292.2 285.4 310.1 6.71 5 912 925 11.8 5.8 67 6.0 8.5 192 19 292.6 293.7 285.6 310.8 6.35 6 850 1510 7.4 1.4 66 6.0 4.4 200 26 293.9 294.8 284.7 308.4 4.98 7 700 3071 -5.7 -8.3 82 2.6 -6.7 200 19 296.2 296.7 283.4 305.0 2.92 8 694 3139 -5.7 -8.4 81 2.7 -6.7 201 19 296.9 297.4 283.7 305.7 2.92 9 668 3438 -5.9 -10.3 71 4.4 -7.5 203 20 299.9 300.4 284.5 308.0 2.61 10 628 3919 -8.9 -14.9 62 6.0 -10.8 208 21 301.9 302.2 284.5 307.9 1.91 11 572 4635 -15.1 -24.1 46 9.0 -17.1 215 23 302.8 302.9 283.7 305.9 0.95 12 558 4822 -16.1 -25.1 46 9.0 -18.0 217 23 303.7 303.9 284.1 306.7 0.89 13 526 5264 -19.3 -23.7 68 4.4 -20.3 221 24 305.1 305.3 284.8 308.6 1.07 14 500 5640 -21.3 -24.4 76 3.1 -22.0 225 25 307.1 307.3 285.5 310.6 1.06 15 494 5729 -21.5 -24.7 75 3.2 -22.2 225 25 307.9 308.1 285.8 311.3 1.04 16 454 6347 -26.1 -29.9 70 3.8 -26.7 225 29 309.6 309.8 286.1 312.0 0.70 17 400 7250 -34.1 -38.1 67 4.0 -34.5 225 34 310.7 310.7 286.0 311.9 0.36 18 300 9190 -50.7 -55.6 56 4.9 -50.8 225 38 313.9 313.9 286.8 314.1 0.07 19 268 9919 -56.7 -61.7 53 5.0 -56.8 215 49 315.4 315.4 287.3 315.6 0.04 20 250 10360 -58.7 -63.7 52 5.0 -58.7 210 53 318.8 318.8 288.4 318.9 0.03 21 218 11214 -59.2 -63.7 56 4.5 -59.3 230 67 330.7 330.7 291.9 330.9 0.03 22 202 11688 -59.5 234 56 337.6 23 200 11750 -59.1 235 54 339.2 24 150 13560 -58.9 255 55 368.6 25 140 13991 -60.9 256 54 372.4 26 122 14847 -60.9 258 53 387.4 27 103 15905 -58.7 260 51 410.8 28 100 16090 -59.9 260 51 412.0 29 86 17026 -62.1 262 51 425.7 30 82 17321 -62.1 263 51 431.6 31 70 18300 -61.3 265 51 453.2 32 59 19362 -61.3 262 47 476.0 33 50 20390 -61.1 260 43 499.5 34 49 20515 -62.3 260 43 499.5 35 43 21325 -59.5 261 40 525.4 36 37 22264 -59.3 263 37 549.0 37 30 23570 -61.3 265 33 577.5 38 25 24704 -60.3 611.3 39 25 24704 -59.1 614.8 TRP 268 9919 -56.7 -61.7 53 5.0 -56.8 215 49 315.4 315.4 287.3 315.6 0.04 WND 218 11214 -59.2 -63.7 56 4.5 -59.3 230 67 330.7 330.7 291.9 330.9 0.03 Sounding variables and indices 1000-500 mb thick: 5490.00 m Freezing level: 765.27 mb = 2391.79 m = 7846.97 ft Wetbulb zero: 790.21 mb = 2096.43 m = 6877.97 ft Precipitable water: 0.82 inches Sfc-500 mean rel hum: 67.03 % Est. max temperature: 21.67 C = 71.01 F Sfc-Lift cond lev (LCL): 994.08 mb = 200.32 m = 657.22 ft T: 14.20 C 700-500 lapse rate: 6.07 C/km ThetaE index: 5.87 C Layer 850.0- 694.0 mb Conv cond level (CCL): 823.78 mb = 1761.92 m = 5780.51 ft Mean mixing ratio: 6.79 g/kg Conv temperature: 22.42 C = 72.35 F Cap Strength: 3.96 C Lifted Index: 2.21 C Risk: None Lifted Index @300 mb: 4.30 C Lifted Index @700 mb: -0.65 C Showalter Index: 2.00 C Risk: Showers probable Total Totals Index: 51.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.70 C Cross Totals Index: 22.70 C K Index: 27.50 Risk: 40-60 % chance of thunderstorms Sweat Index: 219.63 Risk: None Energy Index: 0.40 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.57 J/kg Max Up Vert Vel: 6.57 m/s Conv Inhibition (B-): 160.48 J/kg Cap Strength: 3.96 C Lift Cond Lev (LCL): 891.71 mb = 1112.18 m = 3648.86 ft Lev Free Conv (LFC): 726.71 mb = 2769.90 m = 9087.50 ft Equ Level (EL): 686.71 mb = 3221.31 m = 10568.49 ft B at Equ Level: 20.49 J/kg Max Parcel Lev (MPL): 646.71 mb = 3690.39 m = 12107.44 ft Wind level data Storm motion: 234 at 16 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 1015 25 140 6 -3.9 4.6 | 74 18 -17.2 -5.0 1 1000 150 135 21 -14.8 14.8 | 101 29 -28.2 5.3 2 925 807 190 17 3.0 16.7 | 125 13 -10.4 7.2 3 850 1510 200 26 8.9 24.4 | 163 16 -4.4 14.9 4 700 3071 200 19 6.5 17.9 | 141 11 -6.8 8.3 5 500 5640 225 25 17.7 17.7 | 208 9 4.4 8.1 6 400 7250 225 34 24.0 24.0 | 217 18 10.7 14.5 7 300 9190 225 38 26.9 26.9 | 218 22 13.6 17.3 8 268 9919 215 49 28.1 40.1 | 206 34 14.8 30.6 9 250 10360 210 53 26.5 45.9 | 200 39 13.2 36.3 10 218 11214 230 67 51.3 43.1 | 229 51 38.0 33.5 11 200 11750 235 54 44.2 31.0 | 235 38 30.9 21.4 12 150 13560 255 55 53.1 14.2 | 263 40 39.8 4.7 13 100 16090 260 51 50.2 8.9 | 271 37 36.9 -0.7 14 70 18300 265 51 50.8 4.4 | 278 38 37.5 -5.1 15 50 20390 260 43 42.3 7.5 | 274 29 29.0 -2.1 16 30 23570 265 33 32.9 2.9 | 289 21 19.6 -6.7 Wind Parameters Mean winds (0-6000m): 204.3 at 21.9 knts Storm direction: 234.3 at 16.4 knts Shear (0-3000m) pos: 4.0 neg: 1.2 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 67.7 deg Storm rel helicity (0-3000m) pos: 145.4 neg: -16.4 tot: 129.0 m^2/s^2 ave: 43.0 10^-3 m/s^2 rel: 0.50 Storm rel vorticity (0-3000m) horiz: 8.2 stream: 4.1 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.43 Bulk Shear: 50.01 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 18 104 24| 14.0 0.0 14.0|100.8 0.0 100.8 201.6 0.70| 24.8 17.4 1000 165 18 114 20| 8.7 0.0 8.7|121.8 0.0 121.8 121.8 0.65| 17.7 11.5 1500 178 20 126 17| 8.1 0.0 8.1|145.4 0.0 145.4 96.9 0.70| 14.1 9.8 2000 185 21 135 16| 6.0 0.6 6.6|145.4 -5.5 139.9 70.0 0.63| 11.2 7.0 2500 189 21 139 15| 4.8 0.9 5.8|145.4 -11.0 134.4 53.8 0.56| 9.4 5.3 3000 191 21 140 15| 4.0 1.2 5.2|145.4 -16.4 129.0 43.0 0.50| 8.2 4.1 4000 194 21 143 13| 3.4 0.9 4.2|154.8 -16.4 138.3 34.6 0.53| 6.7 3.5 5000 199 21 149 12| 3.0 0.7 3.7|165.3 -16.4 148.9 29.8 0.57| 5.8 3.3 6000 204 22 157 11| 2.8 0.6 3.4|173.7 -16.4 157.3 26.2 0.58| 5.3 3.0 Wrote GIF file: /home/apache/climate/data/raob//LT220/skewt/LT220.skewt.20251225.00.gif