UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for FK870... Searching the city database file for: FK870 ... Date:1200Z 26 APR 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 73 1 920 -10533 SFC 892 -5716 26.4 20.4 70 6.0 22.0 140 2 309.5 312.7 299.0 361.7 17.16 3 850 1523 21.2 17.5 79 3.7 18.6 195 2 308.4 311.2 297.4 353.7 14.97 4 788 2174 15.6 14.4 93 1.2 14.8 80 4 309.1 311.6 296.5 349.2 13.21 5 700 3174 11.0 7.2 77 3.8 8.6 95 20 314.7 316.4 295.1 343.2 9.15 6 500 5910 -4.3 -9.1 69 4.8 -6.5 120 17 327.8 328.6 294.5 340.7 3.84 7 400 7630 -15.1 -23.1 50 8.0 -17.5 105 13 335.4 335.7 294.5 340.7 1.49 8 300 9740 -29.5 -36.5 51 7.0 -30.6 110 9 343.8 343.9 295.7 346.0 0.56 9 250 11020 -38.7 -43.7 59 5.0 -39.2 75 17 348.5 348.6 296.6 349.8 0.32 10 200 12510 -51.3 -56.3 55 5.0 -51.5 55 13 351.5 351.6 297.0 351.9 0.09 11 150 14310 -66.9 -69.9 66 3.0 -67.0 355 10 354.8 354.8 297.7 354.9 0.02 12 100 16660 -78.9 -80.3 80 1.4 -78.9 5 21 375.3 375.3 301.5 375.3 0.01 13 98 16775 -78.9 13 20 377.5 14 88 17382 -82.3 53 17 382.4 15 79 17981 -84.7 94 15 389.5 16 70 18660 -78.5 190 6 416.4 17 66 19002 -70.5 213 8 440.9 18 65 19092 -70.3 219 9 443.3 19 64 19184 -70.7 225 9 444.4 20 62 19372 -70.7 237 11 448.4 21 58 19765 -73.1 263 13 451.6 22 57 19866 -74.1 269 14 451.6 23 50 20640 -68.5 320 19 482.1 24 45 21279 -63.5 284 11 509.0 TRP 788 2174 15.6 14.4 93 1.2 14.8 80 4 309.1 311.6 296.5 349.2 13.21 WND Sounding variables and indices 1000-500 mb thick: 5837.00 m Freezing level: 556.21 mb = 5141.06 m = 16866.79 ft Wetbulb zero: 585.78 mb = 4622.43 m = 15165.27 ft Precipitable water: 1.67 inches Sfc-500 mean rel hum: 77.43 % Est. max temperature: 28.75 C = 83.75 F Sfc-Lift cond lev (LCL): 817.46 mb = 1858.57 m = 6097.58 ft T: 18.31 C 700-500 lapse rate: 5.59 C/km ThetaE index: 21.00 C Layer 850.0- 300.0 mb Conv cond level (CCL): 797.20 mb = 2074.35 m = 6805.54 ft Mean mixing ratio: 14.92 g/kg Conv temperature: 25.91 C = 78.64 F Cap Strength: 0.16 C Lifted Index: -2.77 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.27 C Lifted Index @700 mb: -0.68 C Showalter Index: -2.62 C Risk: Severe thunderstorms possible Total Totals Index: 47.30 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.50 C Cross Totals Index: 21.80 C K Index: 39.20 Risk: > 80 % chance of thunderstorms Sweat Index: 231.00 Risk: None Energy Index: -2.56 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 986.78 J/kg Max Up Vert Vel: 44.42 m/s Conv Inhibition (B-): 30.87 J/kg Cap Strength: 0.68 C Lift Cond Lev (LCL): 799.71 mb = 2047.40 m = 6717.11 ft Lev Free Conv (LFC): 794.71 mb = 2101.32 m = 6894.03 ft Equ Level (EL): 164.71 mb = 13724.81 m = 45028.35 ft B at Equ Level: 985.71 J/kg Max Parcel Lev (MPL): 94.71 mb = 16967.79 m = 55667.91 ft Wind level data Storm motion: 192 at 2 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 ---------------------------------------------------------- 0 892 -5716 140 2 -1.3 1.5 | 92 2 -1.6 0.1 1 850 1523 195 2 0.5 1.9 | 203 1 0.2 0.5 2 788 2174 80 4 -3.9 -0.7 | 63 5 -4.3 -2.2 3 700 3174 95 20 -19.9 1.7 | 91 20 -20.2 0.3 4 500 5910 120 17 -14.7 8.5 | 115 17 -15.0 7.0 5 400 7630 105 13 -12.6 3.4 | 98 13 -12.9 1.9 6 300 9740 110 9 -8.5 3.1 | 100 9 -8.8 1.6 7 250 11020 75 17 -16.4 -4.4 | 71 18 -16.7 -5.9 8 200 12510 55 13 -10.6 -7.5 | 51 14 -11.0 -8.9 9 150 14310 355 10 0.9 -10.0 | 357 11 0.6 -11.4 10 100 16660 5 21 -1.8 -20.9 | 5 22 -2.1 -22.4 11 75 18288 115 13 -11.8 5.5 | 108 13 -12.1 4.0 12 70 18660 190 6 1.0 5.9 | 189 5 0.7 4.4 13 50 20640 320 19 12.2 -14.6 | 323 20 11.9 -16.0 14 43 21336 270 8 8.0 -0.0 | 281 8 7.7 -1.5 Wind Parameters Mean winds (0-6000m): 162.2 at 2.0 knts Storm direction: 192.2 at 1.5 knts Shear (0-3000m) pos: 0.1 neg: 0.0 tot: 0.1 10-3/s Storm rel Dir Shear (0-3000m): 23.7 deg Storm rel helicity (0-3000m) pos: 0.2 neg: 0.0 tot: 0.2 m^2/s^2 ave: 0.1 10^-3 m/s^2 rel: 0.67 Storm rel vorticity (0-3000m) horiz: 0.1 stream: 0.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 9490.66 Bulk Shear: 0.10 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 ------------------------------------------------------------------------------- 500 137 2 90 2| 0.1 0.0 0.1| 0.0 0.0 0.0 0.1 0.67| 0.1 0.1 1000 139 2 92 2| 0.1 0.0 0.1| 0.1 0.0 0.1 0.1 0.67| 0.1 0.1 1500 142 2 94 2| 0.1 0.0 0.1| 0.1 0.0 0.1 0.1 0.67| 0.1 0.1 2000 144 2 96 2| 0.1 0.0 0.1| 0.1 0.0 0.1 0.1 0.66| 0.1 0.1 2500 146 2 98 1| 0.1 0.0 0.1| 0.2 0.0 0.2 0.1 0.67| 0.1 0.1 3000 149 2 100 1| 0.1 0.0 0.1| 0.2 0.0 0.2 0.1 0.67| 0.1 0.1 4000 153 2 105 1| 0.1 0.0 0.1| 0.2 0.0 0.2 0.1 0.68| 0.1 0.1 5000 158 2 110 1| 0.1 0.0 0.1| 0.3 0.0 0.3 0.1 0.70| 0.1 0.1 6000 162 2 115 1| 0.1 0.0 0.1| 0.3 0.0 0.3 0.1 0.73| 0.1 0.1 Wrote GIF file: /home/apache/climate/data/raob//FK870/skewt/FK870.skewt.20250426.12.gif