UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101912.upa.cvt Date: 1200Z 19 OCT 25 Searching for FK870... Searching the city database file for: FK870 ... Date:1200Z 19 OCT 25 Station: FK870 WMO ident: 64870 ------------------------------------------------------------------------------- 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 85 1 920 -10521 SFC 893 -5874 28.0 17.0 51 11.0 20.2 300 3 311.1 313.7 297.3 353.2 13.78 3 850 1539 22.4 12.4 53 10.0 15.8 315 4 309.6 311.6 294.8 342.3 10.70 4 700 3187 9.2 2.2 62 7.0 5.3 70 20 312.7 313.9 292.4 332.7 6.42 5 500 5900 -6.7 -25.7 20 19.0 -12.1 50 13 324.9 325.1 291.2 328.2 0.94 6 400 7610 -15.7 -42.7 8 27.0 -20.2 60 19 334.6 334.6 293.2 335.5 0.22 7 300 9710 -31.1 -42.1 33 11.0 -32.4 80 20 341.5 341.6 295.0 342.8 0.31 8 250 10980 -41.3 -48.3 47 7.0 -41.8 75 14 344.7 344.7 295.6 345.4 0.19 9 200 12450 -53.5 -57.1 65 3.6 -53.6 110 19 348.0 348.1 296.3 348.4 0.08 10 150 14240 -69.5 -71.7 73 2.2 -69.5 95 18 350.4 350.4 296.7 350.4 0.02 TRP WND Sounding variables and indices 1000-500 mb thick: 5815.00 m Freezing level: 584.28 mb = 4756.79 m = 15606.06 ft Wetbulb zero: 639.17 mb = 3920.05 m = 12860.91 ft Precipitable water: 1.05 inches Sfc-500 mean rel hum: 47.42 % Est. max temperature: 28.72 C = 83.69 F Sfc-Lift cond lev (LCL): 760.79 mb = 2480.10 m = 8136.72 ft T: 14.86 C 700-500 lapse rate: 5.86 C/km ThetaE index: 25.01 C Layer 850.0- 400.0 mb Conv cond level (CCL): 706.15 mb = 3112.72 m = 10212.22 ft Mean mixing ratio: 10.84 g/kg Conv temperature: 29.44 C = 84.99 F Cap Strength: 1.67 C Lifted Index: -1.27 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.99 C Lifted Index @700 mb: 0.51 C Showalter Index: -0.80 C Risk: Thunderstorms probable Total Totals Index: 48.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 29.10 C Cross Totals Index: 19.10 C K Index: 34.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 169.80 Risk: None Energy Index: -2.67 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 95.26 J/kg Max Up Vert Vel: 13.80 m/s Conv Inhibition (B-): 60.83 J/kg Cap Strength: 1.67 C Lift Cond Lev (LCL): 728.95 mb = 2843.03 m = 9327.42 ft Lev Free Conv (LFC): 653.95 mb = 3735.70 m = 12256.07 ft Equ Level (EL): 413.95 mb = 7347.31 m = 24105.07 ft B at Equ Level: 94.33 J/kg Max Parcel Lev (MPL): 263.95 mb = 10601.79 m = 34782.35 ft Wind level data Storm motion: 337 at 3 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 ---------------------------------------------------------- 0 893 -5874 300 3 2.6 -1.5 | 242 2 1.6 0.9 1 850 1539 315 4 2.8 -2.8 | 285 2 1.8 -0.5 2 700 3187 70 20 -18.8 -6.8 | 77 20 -19.8 -4.5 3 500 5900 50 13 -10.0 -8.4 | 61 12 -10.9 -6.0 4 400 7610 60 19 -16.5 -9.5 | 68 19 -17.4 -7.1 5 300 9710 80 20 -19.7 -3.5 | 87 21 -20.7 -1.1 6 250 10980 75 14 -13.5 -3.6 | 85 15 -14.5 -1.3 7 200 12450 110 19 -17.9 6.5 | 115 21 -18.8 8.9 8 150 14240 95 18 -17.9 1.6 | 102 19 -18.9 3.9 Wind Parameters Mean winds (0-6000m): 307.2 at 3.4 knts Storm direction: 337.2 at 2.6 knts Shear (0-3000m) pos: 0.1 neg: 0.0 tot: 0.1 10-3/s Storm rel Dir Shear (0-3000m): 16.8 deg Storm rel helicity (0-3000m) pos: 0.3 neg: 0.0 tot: 0.3 m^2/s^2 ave: 0.1 10^-3 m/s^2 rel: 1.00 Storm rel vorticity (0-3000m) horiz: 0.1 stream: 0.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 3424.70 Bulk Shear: 0.03 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 ------------------------------------------------------------------------------- 500 303 3 245 2| 0.1 0.0 0.1| 0.0 0.0 0.0 0.1 1.00| 0.1 0.1 1000 303 3 246 2| 0.1 0.0 0.1| 0.1 0.0 0.1 0.1 1.00| 0.1 0.1 1500 303 3 248 2| 0.1 0.0 0.1| 0.1 0.0 0.1 0.1 1.00| 0.1 0.1 2000 304 3 249 2| 0.1 0.0 0.1| 0.2 0.0 0.2 0.1 1.00| 0.1 0.1 2500 304 3 250 2| 0.1 0.0 0.1| 0.2 0.0 0.2 0.1 1.00| 0.1 0.1 3000 304 3 252 2| 0.1 0.0 0.1| 0.3 0.0 0.3 0.1 1.00| 0.1 0.1 4000 305 3 254 2| 0.1 0.0 0.1| 0.3 0.0 0.3 0.1 1.00| 0.1 0.1 5000 306 3 257 2| 0.1 0.0 0.1| 0.4 0.0 0.4 0.1 1.00| 0.1 0.1 6000 307 3 260 2| 0.1 0.0 0.1| 0.5 0.0 0.5 0.1 1.00| 0.1 0.1 Wrote GIF file: /home/apache/climate/data/raob//FK870/skewt/FK870.skewt.20251019.12.gif