UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041911.upa.cvt Date: 1100Z 19 APR 25 Searching for FSSS... Searching the city database file for: FSSS ... Date:1100Z 19 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 1008 4 31.4 24.4 66 7.0 26.2 130 4 303.9 307.5 299.1 361.8 19.43 1 1000 72 29.0 23.0 70 6.0 24.6 120 3 302.1 305.5 297.7 355.2 17.96 2 925 762 22.6 21.6 94 1.0 21.9 190 4 302.4 305.7 297.7 355.2 17.83 3 850 1496 18.2 18.2 100 0.0 18.2 260 9 305.2 308.1 297.1 352.0 15.66 4 700 3141 11.0 4.0 62 7.0 6.9 240 3 314.7 316.1 293.7 337.6 7.30 5 500 5870 -5.1 -14.1 49 9.0 -8.7 40 9 326.8 327.3 293.2 335.6 2.57 6 400 7590 -15.5 -49.5 4 34.0 -20.3 245 8 334.8 334.9 293.1 335.3 0.10 7 300 9710 -29.3 -53.3 8 24.0 -31.5 280 15 344.1 344.1 295.4 344.5 0.09 8 250 10980 -39.9 -62.9 7 23.0 -40.9 335 18 346.7 346.8 296.0 346.9 0.03 9 200 12460 -52.7 -64.7 22 12.0 -53.0 310 15 349.3 349.3 296.5 349.5 0.03 10 150 14260 -65.7 -78.7 15 13.0 -65.8 315 17 356.9 356.9 298.1 356.9 0.01 11 101 16564 -81.3 -87.3 35 6.0 -81.3 85 24 369.6 369.6 300.5 369.6 0.00 12 100 16620 -80.9 -87.9 30 7.0 -80.9 80 20 371.4 371.4 300.8 371.4 0.00 TRP 101 16564 -81.3 -87.3 35 6.0 -81.3 85 24 369.6 369.6 300.5 369.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5798.00 m Freezing level: 563.35 mb = 5005.53 m = 16422.16 ft Wetbulb zero: 611.44 mb = 4238.03 m = 13904.11 ft Precipitable water: 2.20 inches Sfc-500 mean rel hum: 70.71 % Est. max temperature: 32.45 C = 90.41 F Sfc-Lift cond lev (LCL): 911.51 mb = 889.50 m = 2918.27 ft T: 21.84 C 700-500 lapse rate: 5.90 C/km ThetaE index: 26.51 C Layer 1000.0- 300.0 mb Conv cond level (CCL): 901.71 mb = 983.37 m = 3226.24 ft Mean mixing ratio: 17.90 g/kg Conv temperature: 30.81 C = 87.46 F Cap Strength: 0.42 C Lifted Index: -4.01 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -3.77 C Lifted Index @700 mb: -1.03 C Showalter Index: -2.83 C Risk: Severe thunderstorms possible Total Totals Index: 46.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.30 C Cross Totals Index: 23.30 C K Index: 34.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 245.40 Risk: None Energy Index: -3.24 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1511.86 J/kg Max Up Vert Vel: 54.99 m/s Conv Inhibition (B-): 3.54 J/kg Cap Strength: 1.44 C Lift Cond Lev (LCL): 913.16 mb = 873.79 m = 2866.72 ft Lev Free Conv (LFC): 888.16 mb = 1114.75 m = 3657.27 ft Equ Level (EL): 158.16 mb = 13928.38 m = 45696.23 ft B at Equ Level: 1508.75 J/kg Wind level data Storm motion: 318 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 1008 4 130 4 -3.1 2.6 | 134 8 -6.0 5.8 1 1000 72 120 3 -2.6 1.5 | 131 7 -5.5 4.8 2 925 762 190 4 0.7 3.9 | 163 8 -2.2 7.2 3 850 1496 260 9 8.9 1.6 | 231 8 6.0 4.8 4 700 3141 240 3 2.6 1.5 | 176 5 -0.3 4.8 5 500 5870 40 9 -5.8 -6.9 | 67 9 -8.7 -3.6 6 400 7590 245 8 7.3 3.4 | 213 8 4.3 6.6 7 300 9710 280 15 14.8 -2.6 | 267 12 11.9 0.7 8 250 10980 335 18 7.6 -16.3 | 340 14 4.7 -13.1 9 200 12460 310 15 11.5 -9.6 | 307 11 8.6 -6.4 10 150 14260 315 17 12.0 -12.0 | 314 13 9.1 -8.8 11 101 16564 85 24 -23.9 -2.1 | 92 27 -26.8 1.2 12 100 16620 80 20 -19.7 -3.5 | 89 23 -22.6 -0.2 Wind Parameters Mean winds (0-6000m): 288.2 at 5.8 knts Storm direction: 318.2 at 4.4 knts Shear (0-3000m) pos: 2.0 neg: 1.0 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 47.7 deg Storm rel helicity (0-3000m) pos: 27.8 neg: -9.0 tot: 18.8 m^2/s^2 ave: 6.3 10^-3 m/s^2 rel: 0.39 Storm rel vorticity (0-3000m) horiz: 3.5 stream: 1.4 10^-3/s Energy-Hel index: 0.26 Bulk Rich Number: 147.06 Bulk Shear: 10.28 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 ------------------------------------------------------------------------------- 500 141 3 140 8| 2.3 0.0 2.3| 4.8 -0.6 4.2 8.3 0.60| 3.6 2.1 1000 172 4 154 8| 3.4 0.0 3.4| 13.5 -0.6 12.9 12.9 0.81| 4.0 3.3 1500 214 5 179 7| 4.1 0.0 4.1| 27.8 -0.6 27.1 18.1 0.90| 5.0 4.5 2000 233 6 194 7| 3.1 0.5 3.6| 27.8 -3.8 23.9 12.0 0.69| 4.3 2.9 2500 239 6 198 7| 2.5 0.8 3.3| 27.8 -6.6 21.2 8.5 0.52| 3.8 2.0 3000 241 6 199 6| 2.0 1.0 3.0| 27.8 -9.0 18.8 6.3 0.39| 3.5 1.4 4000 247 5 200 6| 1.8 0.7 2.6| 30.5 -9.5 21.1 5.3 0.43| 3.2 1.4 5000 265 5 213 4| 1.4 0.6 2.0| 33.5 -9.5 24.1 4.8 0.51| 3.2 1.6 6000 288 6 241 3| 1.0 0.5 1.5| 41.7 -12.3 29.4 4.9 0.49| 3.4 1.7 Wrote GIF file: /home/apache/climate/data/raob//FSSS/skewt/FSSS.skewt.20250419.11.gif