UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for LFKJ... Searching the city database file for: LFKJ ... Date:1200Z 4 DEC 25 Station: LFKJ WMO ident: 7761 Latitude: 41.92 Longitude: 8.80 Elevation: 9.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1004 9 16.8 10.8 68 6.0 13.3 245 5 289.6 291.1 286.2 312.6 8.12 1 1000 41 14.6 11.2 80 3.4 12.6 245 5 287.8 289.2 285.8 311.2 8.37 2 925 693 8.8 7.9 94 0.9 8.3 330 5 288.3 289.6 284.8 308.7 7.24 3 850 1388 4.6 2.5 86 2.1 3.5 360 3 291.0 291.9 284.0 306.5 5.39 4 700 2940 -5.1 -10.1 68 5.0 -6.9 305 5 296.8 297.3 283.2 304.5 2.53 5 500 5490 -24.1 -42.1 17 18.0 -26.0 145 5 303.7 303.7 283.1 304.3 0.19 6 400 7070 -37.7 -53.7 17 16.0 -38.4 165 25 306.0 306.0 283.9 306.2 0.06 7 300 8980 -53.5 -62.5 33 9.0 -53.7 135 36 309.9 309.9 285.3 310.0 0.03 8 257 9966 -57.5 -73.5 11 16.0 -57.6 165 21 318.1 318.1 288.1 318.1 0.01 9 250 10140 -57.1 -75.1 8 18.0 -57.3 180 17 321.2 321.2 289.1 321.2 0.01 10 200 11550 -56.7 -86.7 1 30.0 -56.9 235 11 343.0 343.0 295.0 343.0 0.00 11 150 13380 -57.3 -87.3 1 30.0 -57.6 260 17 371.4 371.4 300.8 371.4 0.00 12 100 15940 -58.5 -88.5 1 30.0 -58.9 275 21 414.7 414.7 307.1 414.7 0.00 TRP 257 9966 -57.5 -73.5 11 16.0 -57.6 165 21 318.1 318.1 288.1 318.1 0.01 WND Sounding variables and indices 1000-500 mb thick: 5449.00 m Freezing level: 778.87 mb = 2124.00 m = 6968.42 ft Wetbulb zero: 799.15 mb = 1881.06 m = 6171.40 ft Precipitable water: 0.79 inches Sfc-500 mean rel hum: 63.12 % Est. max temperature: 18.00 C = 64.40 F Sfc-Lift cond lev (LCL): 917.97 mb = 755.75 m = 2479.46 ft T: 8.42 C 700-500 lapse rate: 7.45 C/km ThetaE index: 8.23 C Layer 1000.0- 400.0 mb Conv cond level (CCL): 921.78 mb = 721.69 m = 2367.72 ft Mean mixing ratio: 7.64 g/kg Conv temperature: 15.60 C = 60.08 F Cap Strength: 0.11 C Lifted Index: -1.59 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.39 C Lifted Index @700 mb: -0.84 C Showalter Index: 0.49 C Risk: Thunderstorms probable Total Totals Index: 55.30 C Risk: Severe Thunderstorms probable Vertical Totals Index: 28.70 C Cross Totals Index: 26.60 C K Index: 26.20 Risk: 40-60 % chance of thunderstorms Sweat Index: 167.00 Risk: None Energy Index: -0.44 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 346.36 J/kg Max Up Vert Vel: 26.32 m/s Conv Inhibition (B-): 0.76 J/kg Cap Strength: 1.43 C Lift Cond Lev (LCL): 924.97 mb = 693.23 m = 2274.35 ft Lev Free Conv (LFC): 909.97 mb = 827.61 m = 2715.22 ft Equ Level (EL): 309.97 mb = 8762.85 m = 28749.15 ft B at Equ Level: 344.62 J/kg Max Parcel Lev (MPL): 239.97 mb = 10398.62 m = 34115.80 ft Wind level data Storm motion: 320 at 4 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 1004 9 245 5 4.5 2.1 | 204 5 2.2 5.0 1 1000 41 245 5 4.5 2.1 | 204 5 2.2 5.0 2 925 693 330 5 2.5 -4.3 | 355 1 0.1 -1.5 3 850 1388 360 3 -0.0 -3.0 | 86 2 -2.4 -0.2 4 700 2940 305 5 4.1 -2.9 | 271 2 1.7 -0.0 5 500 5490 145 5 -2.9 4.1 | 143 9 -5.2 6.9 6 400 7070 165 25 -6.5 24.1 | 162 28 -8.8 27.0 7 300 8980 135 36 -25.5 25.5 | 135 40 -27.8 28.3 8 257 9966 165 21 -5.4 20.3 | 161 24 -7.8 23.1 9 250 10140 180 17 0.0 17.0 | 173 20 -2.4 19.8 10 200 11550 235 11 9.0 6.3 | 216 11 6.7 9.2 11 150 13380 260 17 16.7 3.0 | 248 16 14.4 5.8 12 100 15940 275 21 20.9 -1.8 | 267 19 18.6 1.0 Wind Parameters Mean winds (0-6000m): 290.4 at 4.9 knts Storm direction: 320.4 at 3.7 knts Shear (0-3000m) pos: 1.2 neg: 0.7 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 57.7 deg Storm rel helicity (0-3000m) pos: 5.4 neg: -1.1 tot: 4.3 m^2/s^2 ave: 1.4 10^-3 m/s^2 rel: 0.34 Storm rel vorticity (0-3000m) horiz: 2.6 stream: 0.9 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1196.99 Bulk Shear: 0.29 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 ------------------------------------------------------------------------------- 500 273 5 226 4| 5.2 0.0 5.2| 3.5 0.0 3.5 6.9 0.72| 5.5 3.9 1000 303 5 263 2| 3.6 0.0 3.6| 4.7 0.0 4.7 4.7 0.82| 4.6 3.7 1500 317 4 301 1| 2.3 0.0 2.3| 5.4 -0.1 5.3 3.5 0.79| 3.6 2.9 2000 324 4 353 1| 1.7 0.3 2.1| 5.4 -0.4 4.9 2.5 0.64| 3.0 2.0 2500 324 4 354 1| 1.4 0.5 1.9| 5.4 -0.7 4.7 1.9 0.48| 2.7 1.3 3000 320 4 316 1| 1.2 0.7 1.9| 5.4 -1.1 4.3 1.4 0.34| 2.6 0.9 4000 306 4 259 1| 0.9 0.9 1.8| 5.4 -5.1 0.2 0.1 0.06| 2.6 0.2 5000 298 5 247 2| 0.7 0.8 1.5| 5.4 -14.4 -9.1 -1.8 -0.14| 2.7 -0.4 6000 290 5 243 3| 0.6 0.7 1.3| 9.3 -20.2 -11.0 -1.8 -0.14| 3.0 -0.4 Wrote GIF file: /home/apache/climate/data/raob//LFKJ/skewt/LFKJ.skewt.20251204.12.gif