UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041823.upa.cvt Date: 2300Z 18 APR 25 Searching for FSSS... Searching the city database file for: FSSS ... Date:2300Z 18 APR 25 Station: FSSS WMO ident: 63985 Latitude: -4.68 Longitude: 55.53 Elevation: 4.00 ------------------------------------------------------------------------------- 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 1009 4 27.8 23.6 78 4.2 24.7 210 2 300.2 303.6 297.5 354.4 18.47 1 1000 84 28.2 23.2 74 5.0 24.5 220 4 301.4 304.7 297.7 354.9 18.19 2 925 772 22.8 18.2 75 4.6 19.6 230 10 302.6 305.3 295.6 345.1 14.36 3 850 1505 18.4 11.4 64 7.0 13.9 235 13 305.4 307.3 293.2 335.5 10.01 4 700 3148 11.2 1.2 50 10.0 5.6 205 6 314.9 316.0 292.7 333.7 5.97 5 500 5870 -4.9 -13.9 49 9.0 -8.5 140 5 327.1 327.6 293.3 336.0 2.61 6 400 7600 -14.9 -37.9 12 23.0 -19.4 250 7 335.6 335.7 293.6 337.0 0.36 7 300 9700 -30.7 -54.7 8 24.0 -32.7 280 12 342.1 342.1 294.9 342.4 0.08 8 250 10970 -40.1 -60.1 10 20.0 -41.1 325 13 346.4 346.5 295.9 346.6 0.05 9 200 12450 -52.1 -68.1 13 16.0 -52.4 350 20 350.3 350.3 296.7 350.4 0.02 10 150 14260 -66.3 -77.3 20 11.0 -66.4 265 17 355.9 355.9 297.9 355.9 0.01 11 104 16389 -80.1 -85.1 43 5.0 -80.1 110 20 368.8 368.8 300.4 368.8 0.00 12 100 16610 -79.9 -86.9 30 7.0 -79.9 100 19 373.4 373.4 301.1 373.4 0.00 TRP 104 16389 -80.1 -85.1 43 5.0 -80.1 110 20 368.8 368.8 300.4 368.8 0.00 WND Sounding variables and indices 1000-500 mb thick: 5786.00 m Freezing level: 560.87 mb = 5041.57 m = 16540.37 ft Wetbulb zero: 620.05 mb = 4129.11 m = 13546.78 ft Precipitable water: 1.79 inches Sfc-500 mean rel hum: 57.19 % Est. max temperature: 32.71 C = 90.87 F Sfc-Lift cond lev (LCL): 949.66 mb = 539.85 m = 1771.14 ft T: 24.62 C 700-500 lapse rate: 5.91 C/km ThetaE index: 21.21 C Layer 925.0- 500.0 mb Conv cond level (CCL): 854.69 mb = 1457.33 m = 4781.20 ft Mean mixing ratio: 16.05 g/kg Conv temperature: 32.87 C = 91.17 F Cap Strength: 1.63 C Lifted Index: -1.76 C Risk: Thunderstorms probable Lifted Index @300 mb: -2.01 C Lifted Index @700 mb: 0.75 C Showalter Index: 3.81 C Risk: None Total Totals Index: 39.60 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 16.30 C K Index: 24.70 Risk: 20-40 % chance of thunderstorms Sweat Index: 167.80 Risk: None Energy Index: 0.15 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 432.64 J/kg Max Up Vert Vel: 29.42 m/s Conv Inhibition (B-): 78.50 J/kg Cap Strength: 1.63 C Lift Cond Lev (LCL): 895.00 mb = 1057.80 m = 3470.42 ft Lev Free Conv (LFC): 640.00 mb = 3872.93 m = 12706.32 ft Equ Level (EL): 220.00 mb = 11817.83 m = 38771.92 ft B at Equ Level: 430.16 J/kg Max Parcel Lev (MPL): 130.00 mb = 15091.99 m = 49513.81 ft Wind level data Storm motion: 241 at 6 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 1009 4 210 2 1.0 1.7 | 76 4 -3.9 -1.0 1 1000 84 220 4 2.6 3.1 | 99 2 -2.3 0.4 2 925 772 230 10 7.7 6.4 | 217 5 2.8 3.7 3 850 1505 235 13 10.6 7.5 | 231 7 5.8 4.8 4 700 3148 205 6 2.5 5.4 | 140 4 -2.3 2.7 5 500 5870 140 5 -3.2 3.8 | 98 8 -8.1 1.1 6 400 7600 250 7 6.6 2.4 | 280 2 1.7 -0.3 7 300 9700 280 12 11.8 -2.1 | 305 8 7.0 -4.8 8 250 10970 325 13 7.5 -10.6 | 349 14 2.6 -13.4 9 200 12450 350 20 3.5 -19.7 | 4 22 -1.4 -22.4 10 150 14260 265 17 16.9 1.5 | 276 12 12.1 -1.2 11 104 16389 110 20 -18.8 6.8 | 100 24 -23.7 4.1 12 100 16610 100 19 -18.7 3.3 | 91 24 -23.6 0.6 Wind Parameters Mean winds (0-6000m): 210.9 at 7.4 knts Storm direction: 240.9 at 5.6 knts Shear (0-3000m) pos: 1.9 neg: 1.3 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 74.5 deg Storm rel helicity (0-3000m) pos: 6.3 neg: -9.2 tot: -2.9 m^2/s^2 ave: -1.0 10^-3 m/s^2 rel: 0.03 Storm rel vorticity (0-3000m) horiz: 3.3 stream: 0.1 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 544.27 Bulk Shear: 0.79 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 ------------------------------------------------------------------------------- 500 223 5 136 2| 5.9 0.0 5.9| 2.7 0.0 2.7 5.5 0.80| 6.0 4.8 1000 228 7 197 2| 4.7 0.0 4.7| 4.7 0.0 4.7 4.7 0.71| 4.8 3.4 1500 231 9 215 4| 3.8 0.0 3.8| 6.3 0.0 6.3 4.2 0.65| 3.9 2.6 2000 231 10 217 4| 2.9 0.7 3.6| 6.3 -3.8 2.5 1.2 0.37| 3.7 1.4 2500 229 10 215 4| 2.3 1.1 3.4| 6.3 -6.8 -0.5 -0.2 0.18| 3.5 0.6 3000 228 9 211 4| 1.9 1.3 3.3| 6.3 -9.2 -2.9 -1.0 0.03| 3.3 0.1 4000 223 9 196 4| 1.4 1.3 2.8| 6.3 -11.3 -5.0 -1.3 -0.06| 2.8 -0.2 5000 217 8 179 4| 1.2 1.3 2.5| 6.3 -13.9 -7.6 -1.5 -0.11| 2.5 -0.3 6000 211 7 164 4| 1.0 1.2 2.1| 7.4 -16.7 -9.3 -1.5 -0.14| 2.3 -0.3 Wrote GIF file: /home/apache/climate/data/raob//FSSS/skewt/FSSS.skewt.20250418.23.gif