UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042118.upa.cvt Date: 1800Z 21 APR 25 Searching for LK747... Searching the city database file for: LK747 ... Date:1800Z 21 APR 25 Station: LK747 WMO ident: 11747 Latitude: 49.45 Longitude: 17.13 ------------------------------------------------------------------------------- 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 81 SFC 985 211 16.6 11.6 72 5.0 13.6 260 5 291.0 292.6 287.3 315.8 8.74 2 925 751 16.4 8.4 59 8.0 11.7 220 3 296.1 297.4 288.1 317.9 7.49 3 850 1464 11.2 2.2 54 9.0 6.5 235 3 297.9 298.8 286.6 313.5 5.28 4 700 3049 -1.5 -5.8 72 4.3 -3.3 190 7 300.8 301.5 285.9 311.6 3.54 5 500 5650 -18.3 -26.3 49 8.0 -20.0 205 29 310.7 310.9 286.6 313.7 0.89 6 400 7270 -31.5 -36.0 64 4.5 -32.0 200 29 314.0 314.1 287.3 315.6 0.44 7 300 9240 -47.9 -57.9 31 10.0 -48.2 185 29 317.8 317.8 288.1 318.0 0.05 8 250 10420 -57.9 -66.9 31 9.0 -58.0 200 31 320.0 320.0 288.8 320.1 0.02 9 217 11298 -64.5 -68.4 59 3.9 -64.6 205 36 323.0 323.0 289.7 323.1 0.02 10 200 11800 -60.7 -77.7 9 17.0 -60.8 225 27 336.6 336.6 293.5 336.7 0.00 11 150 13630 -54.9 -83.9 2 29.0 -55.3 210 21 375.5 375.5 301.5 375.5 0.00 12 100 16230 -54.3 -86.3 1 32.0 -54.9 235 17 422.8 422.8 308.0 422.8 0.00 TRP 217 11298 -64.5 -68.4 59 3.9 -64.6 205 36 323.0 323.0 289.7 323.1 0.02 WND Sounding variables and indices 1000-500 mb thick: 5569.00 m Freezing level: 717.72 mb = 2861.79 m = 9388.98 ft Wetbulb zero: 750.59 mb = 2479.34 m = 8134.21 ft Precipitable water: 0.86 inches Sfc-500 mean rel hum: 61.46 % Est. max temperature: 23.74 C = 74.73 F Sfc-Lift cond lev (LCL): 914.18 mb = 850.24 m = 2789.45 ft T: 15.68 C 700-500 lapse rate: 6.46 C/km ThetaE index: 6.26 C Layer 850.0- 500.0 mb Conv cond level (CCL): 788.26 mb = 2079.63 m = 6822.85 ft Mean mixing ratio: 7.60 g/kg Conv temperature: 24.65 C = 76.37 F Cap Strength: 3.15 C Lifted Index: -0.10 C Risk: Thunderstorms probable Lifted Index @300 mb: 1.12 C Lifted Index @700 mb: -0.52 C Showalter Index: 1.84 C Risk: Showers probable Total Totals Index: 50.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.50 C Cross Totals Index: 20.50 C K Index: 27.40 Risk: 40-60 % chance of thunderstorms Sweat Index: 81.40 Risk: None Energy Index: 0.06 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 95.84 J/kg Max Up Vert Vel: 13.84 m/s Conv Inhibition (B-): 129.53 J/kg Cap Strength: 3.15 C Lift Cond Lev (LCL): 838.75 mb = 1572.75 m = 5159.89 ft Lev Free Conv (LFC): 713.75 mb = 2890.18 m = 9482.11 ft Equ Level (EL): 373.75 mb = 7734.79 m = 25376.30 ft B at Equ Level: 95.42 J/kg Max Parcel Lev (MPL): 263.75 mb = 10073.45 m = 33048.96 ft Wind level data Storm motion: 234 at 10 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 ---------------------------------------------------------- 0 985 211 260 5 4.9 0.9 | 31 6 -2.9 -4.7 1 925 751 220 3 1.9 2.3 | 61 7 -5.9 -3.3 2 850 1464 235 3 2.5 1.7 | 54 7 -5.4 -3.9 3 700 3049 190 7 1.2 6.9 | 101 7 -6.6 1.3 4 500 5650 205 29 12.3 26.3 | 192 21 4.4 20.7 5 400 7270 200 29 9.9 27.3 | 186 22 2.1 21.6 6 300 9240 185 29 2.5 28.9 | 167 24 -5.3 23.3 7 250 10420 200 31 10.6 29.1 | 187 24 2.8 23.5 8 217 11298 205 36 15.2 32.6 | 195 28 7.4 27.0 9 200 11800 225 27 19.1 19.1 | 220 18 11.3 13.5 10 150 13630 210 21 10.5 18.2 | 192 13 2.7 12.6 11 100 16230 235 17 13.9 9.8 | 236 7 6.1 4.1 Wind Parameters Mean winds (0-6000m): 204.3 at 12.8 knts Storm direction: 234.3 at 9.6 knts Shear (0-3000m) pos: 0.1 neg: 1.5 tot: 1.5 10-3/s Storm rel Dir Shear (0-3000m): 81.4 deg Storm rel helicity (0-3000m) pos: 13.7 neg: -1.1 tot: 12.5 m^2/s^2 ave: 4.2 10^-3 m/s^2 rel: 0.74 Storm rel vorticity (0-3000m) horiz: 1.9 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 6.98 Bulk Shear: 13.74 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 ------------------------------------------------------------------------------- 500 247 4 45 6| 0.0 3.2 3.2| 4.2 0.0 4.2 8.4 0.87| 3.3 2.9 1000 237 4 53 6| 0.2 1.6 1.8| 4.3 -0.8 3.5 3.5 0.63| 2.0 1.2 1500 235 3 54 6| 0.1 1.0 1.2| 4.9 -1.1 3.8 2.5 0.54| 1.6 0.9 2000 230 4 57 6| 0.1 1.1 1.2| 7.1 -1.1 5.9 3.0 0.63| 1.7 1.0 2500 222 4 63 6| 0.1 1.3 1.3| 9.6 -1.1 8.5 3.4 0.70| 1.7 1.2 3000 212 4 71 6| 0.1 1.5 1.5| 13.7 -1.1 12.5 4.2 0.74| 1.9 1.4 4000 204 6 94 5| 1.1 1.1 2.2| 29.6 -1.1 28.4 7.1 0.79| 2.5 2.0 5000 203 10 128 5| 1.7 0.9 2.6| 49.3 -1.1 48.2 9.6 0.73| 2.9 2.1 6000 204 13 157 7| 1.8 0.8 2.6| 59.6 -5.4 54.2 9.0 0.67| 2.8 1.9 Wrote GIF file: /home/apache/climate/data/raob//LK747/skewt/LK747.skewt.20250421.18.gif