UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for LT220... Searching the city database file for: LT220 ... Date:1200Z 18 APR 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 1011 20 28.8 12.8 37 16.0 18.5 335 3 301.0 302.7 291.2 328.2 9.22 1 1000 117 27.8 13.8 42 14.0 18.7 5 5 301.0 302.8 291.8 330.3 9.96 2 949 583 24.6 12.6 47 12.0 16.8 119 10 302.2 304.0 292.0 331.0 9.70 3 925 809 22.8 9.8 44 13.0 14.7 175 13 302.6 304.1 290.9 327.2 8.24 4 869 1344 19.0 4.0 37 15.0 10.5 227 14 304.1 305.2 289.3 321.9 5.87 5 850 1532 18.2 1.2 32 17.0 9.0 245 14 305.2 306.1 288.8 320.2 4.91 6 700 3157 6.2 -7.8 36 14.0 -0.0 230 22 309.4 309.9 288.4 319.0 3.03 7 632 3985 -0.9 -9.9 50 9.0 -4.6 232 24 310.4 311.0 288.6 319.5 2.85 8 630 4011 -1.3 -9.3 54 8.0 -4.6 232 24 310.3 310.8 288.6 319.8 3.00 9 562 4911 -8.3 -17.3 48 9.0 -11.2 233 27 312.3 312.6 288.1 318.1 1.75 10 503 5765 -14.1 -30.1 24 16.0 -17.5 235 29 315.3 315.4 287.9 317.5 0.62 11 500 5810 -14.5 -30.5 24 16.0 -17.8 235 29 315.4 315.5 287.9 317.5 0.60 12 447 6645 -21.5 -35.5 27 14.0 -23.7 245 32 316.8 316.9 288.2 318.3 0.42 13 400 7450 -28.3 -41.3 28 13.0 -29.7 255 34 318.2 318.3 288.5 319.2 0.26 14 300 9450 -45.1 -59.1 19 14.0 -45.6 255 37 321.8 321.8 289.3 322.0 0.04 15 259 10420 -50.9 255 40 327.1 16 250 10650 -51.1 255 41 330.1 17 219 11496 -57.7 265 44 332.6 18 210 11761 -56.1 270 39 339.2 19 200 12070 -56.5 275 34 343.3 20 150 13890 -58.5 270 17 369.3 21 132 14696 -57.3 281 15 385.2 22 100 16440 -60.1 305 12 411.6 23 88 17232 -60.3 332 11 426.5 24 70 18650 -60.7 20 10 454.5 25 50 20740 -62.5 120 9 496.2 26 35 22953 -60.7 110 15 554.2 27 30 23920 -57.7 105 18 587.3 28 20 26500 -52.7 300 11 674.9 29 18 27185 -52.3 297 14 696.8 30 14 28838 -46.7 290 23 767.7 31 11 30462 -41.3 283 31 842.1 32 10 31110 -42.3 280 34 861.6 33 9.9 31178 -42.5 863.4 34 9.2 31676 -40.3 890.1 35 7.9 32723 -36.5 944.9 TRP 219 11496 -57.7 265 44 332.6 WND Sounding variables and indices 1000-500 mb thick: 5693.00 m Freezing level: 640.62 mb = 3880.29 m = 12730.46 ft Wetbulb zero: 700.16 mb = 3155.11 m = 10351.29 ft Precipitable water: 0.96 inches Sfc-500 mean rel hum: 40.36 % Est. max temperature: 32.38 C = 90.29 F Sfc-Lift cond lev (LCL): 800.44 mb = 2034.75 m = 6675.60 ft T: 14.49 C 700-500 lapse rate: 7.80 C/km ThetaE index: 12.04 C Layer 925.0- 632.0 mb Conv cond level (CCL): 718.90 mb = 2934.06 m = 9626.06 ft Mean mixing ratio: 9.31 g/kg Conv temperature: 36.63 C = 97.94 F Cap Strength: 4.54 C Lifted Index: -3.04 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -4.51 C Lifted Index @700 mb: 2.08 C Showalter Index: 1.77 C Risk: Showers probable Total Totals Index: 48.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 32.70 C Cross Totals Index: 15.70 C K Index: 19.90 Risk: < 20 % chance of thunderstorms Sweat Index: 71.40 Risk: None Energy Index: -0.45 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 942.49 J/kg Max Up Vert Vel: 43.42 m/s Conv Inhibition (B-): 262.63 J/kg Cap Strength: 4.54 C Lift Cond Lev (LCL): 792.10 mb = 2122.42 m = 6963.25 ft Lev Free Conv (LFC): 637.10 mb = 3920.10 m = 12861.05 ft Equ Level (EL): 247.10 mb = 10724.45 m = 35184.79 ft B at Equ Level: 934.87 J/kg Max Parcel Lev (MPL): 167.10 mb = 13206.89 m = 43329.15 ft Wind level data Storm motion: 261 at 15 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 1011 20 335 3 1.3 -2.7 | 70 15 -13.7 -5.0 1 1000 117 5 5 -0.4 -5.0 | 65 17 -15.4 -7.3 2 925 809 175 13 -1.1 13.0 | 124 19 -16.1 10.7 3 850 1532 245 14 12.7 5.9 | 148 4 -2.3 3.6 4 700 3157 230 22 16.9 14.1 | 189 12 1.9 11.9 5 500 5810 235 29 23.8 16.6 | 212 17 8.8 14.4 6 400 7450 255 34 32.8 8.8 | 250 19 17.9 6.5 7 300 9450 255 37 35.7 9.6 | 251 22 20.8 7.3 8 250 10650 255 41 39.6 10.6 | 251 26 24.6 8.3 9 219 11496 265 44 43.8 3.8 | 267 29 28.9 1.6 10 200 12070 275 34 33.9 -3.0 | 285 20 18.9 -5.2 11 150 13890 270 17 17.0 -0.0 | 318 3 2.0 -2.3 12 100 16440 305 12 9.8 -6.9 | 29 10 -5.1 -9.2 13 70 18650 20 10 -3.4 -9.4 | 58 22 -18.4 -11.7 14 50 20740 120 9 -7.8 4.5 | 96 23 -22.7 2.2 15 30 23920 105 18 -17.4 4.7 | 94 32 -32.3 2.4 16 20 26500 300 11 9.5 -5.5 | 35 9 -5.4 -7.8 17 10 31110 280 34 33.5 -5.9 | 294 20 18.5 -8.2 Wind Parameters Mean winds (0-6000m): 231.3 at 20.2 knts Storm direction: 261.3 at 15.1 knts Shear (0-3000m) pos: 2.5 neg: 1.4 tot: 3.9 10-3/s Storm rel Dir Shear (0-3000m): 118.7 deg Storm rel helicity (0-3000m) pos: 166.2 neg: -6.0 tot: 160.3 m^2/s^2 ave: 53.4 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 9.5 stream: 5.4 10^-3/s Energy-Hel index: 0.95 Bulk Rich Number: 9.99 Bulk Shear: 94.35 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 65 7 76 22| 12.1 0.0 12.1| 58.9 -6.0 52.9 105.8 0.52| 16.7 8.7 1000 177 9 115 17| 8.1 0.0 8.1|149.6 -6.0 143.7 143.7 0.69| 18.1 12.6 1500 201 11 125 13| 4.9 0.0 4.9|159.3 -6.0 153.3 102.2 0.59| 16.0 9.4 2000 219 12 133 10| 3.7 0.7 4.4|162.1 -6.0 156.1 78.1 0.60| 12.7 7.6 2500 226 13 141 9| 3.0 1.1 4.1|164.5 -6.0 158.6 63.4 0.59| 10.8 6.4 3000 228 14 149 9| 2.5 1.4 3.9|166.2 -6.0 160.3 53.4 0.57| 9.5 5.4 4000 229 16 163 9| 2.0 1.3 3.3|172.9 -6.0 166.9 41.7 0.58| 7.5 4.3 5000 230 18 175 10| 1.9 1.0 2.9|180.7 -6.0 174.8 35.0 0.58| 6.3 3.7 6000 231 20 184 10| 1.8 0.8 2.7|193.8 -6.0 187.9 31.3 0.60| 5.6 3.3 Wrote GIF file: /home/apache/climate/data/raob//LT220/skewt/LT220.skewt.20250418.12.gif