UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101312.upa.cvt Date: 1200Z 13 OCT 25 Searching for FK870... Searching the city database file for: FK870 ... Date:1200Z 13 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 81 1 920 -10525 SFC 892 -5708 26.2 20.2 70 6.0 21.8 170 4 309.3 312.5 298.8 360.8 16.94 3 850 1529 20.0 16.9 82 3.1 17.8 25 3 307.1 309.8 296.7 350.5 14.40 4 781 2253 14.6 14.0 96 0.6 14.2 30 4 308.8 311.3 296.3 348.2 12.98 5 700 3167 6.4 1.9 73 4.5 3.9 80 14 309.6 310.8 291.4 329.0 6.28 6 500 5870 -6.7 -13.7 57 7.0 -9.4 145 12 324.9 325.4 292.7 333.8 2.65 7 400 7580 -16.1 -22.1 60 6.0 -17.9 70 7 334.1 334.4 294.3 339.9 1.63 8 300 9680 -31.5 -43.5 30 12.0 -32.9 80 13 341.0 341.0 294.8 342.1 0.27 9 250 10950 -41.9 -52.9 29 11.0 -42.5 95 19 343.8 343.8 295.3 344.2 0.11 10 200 12420 -53.9 -63.9 28 10.0 -54.1 95 15 347.4 347.4 296.1 347.6 0.04 11 150 14200 -68.9 -76.9 31 8.0 -68.9 85 10 351.4 351.4 297.0 351.4 0.01 12 100 16550 -78.9 -85.9 31 7.0 -78.9 105 31 375.3 375.3 301.5 375.3 0.00 13 86 17416 -75.5 153 21 398.7 14 85 17484 -75.3 157 21 400.4 15 80 17834 -76.9 176 17 404.1 16 71 18535 -68.5 245 11 436.1 17 70 18620 -68.7 260 11 437.4 18 63 19248 -70.5 446.8 19 60 19538 -69.5 455.3 20 55 20057 -69.9 465.9 21 54 20166 -69.9 468.3 22 51 20506 -70.7 474.2 TRP 781 2253 14.6 14.0 96 0.6 14.2 30 4 308.8 311.3 296.3 348.2 12.98 WND Sounding variables and indices 1000-500 mb thick: 5789.00 m Freezing level: 602.29 mb = 4487.55 m = 14722.75 ft Wetbulb zero: 641.06 mb = 3873.57 m = 12708.42 ft Precipitable water: 1.42 inches Sfc-500 mean rel hum: 73.26 % Est. max temperature: 26.11 C = 79.01 F Sfc-Lift cond lev (LCL): 817.43 mb = 1863.14 m = 6112.61 ft T: 17.51 C 700-500 lapse rate: 4.85 C/km ThetaE index: 31.86 C Layer 850.0- 500.0 mb Conv cond level (CCL): 800.00 mb = 2047.39 m = 6717.06 ft Mean mixing ratio: 14.56 g/kg Conv temperature: 25.28 C = 77.51 F Cap Strength: 0.24 C Lifted Index: -4.43 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -4.22 C Lifted Index @700 mb: -4.75 C Showalter Index: -3.91 C Risk: Severe thunderstorms possible Total Totals Index: 50.30 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.70 C Cross Totals Index: 23.60 C K Index: 39.10 Risk: > 80 % chance of thunderstorms Sweat Index: 246.80 Risk: None Energy Index: -3.33 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1699.44 J/kg Max Up Vert Vel: 58.30 m/s Conv Inhibition (B-): 53.16 J/kg Cap Strength: 1.28 C Lift Cond Lev (LCL): 804.42 mb = 2000.27 m = 6562.49 ft Lev Free Conv (LFC): 789.42 mb = 2161.23 m = 7090.56 ft Equ Level (EL): 149.42 mb = 14222.38 m = 46660.77 ft B at Equ Level: 1695.27 J/kg Max Parcel Lev (MPL): 79.42 mb = 17876.55 m = 58649.39 ft Wind level data Storm motion: 177 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 ---------------------------------------------------------- 0 892 -5708 170 4 -0.7 3.9 | 156 1 -0.6 1.3 1 850 1529 25 3 -1.3 -2.7 | 12 6 -1.1 -5.4 2 781 2253 30 4 -2.0 -3.5 | 17 6 -1.9 -6.2 3 700 3167 80 14 -13.8 -2.4 | 69 15 -13.7 -5.1 4 500 5870 145 12 -6.9 9.8 | 137 10 -6.8 7.1 5 400 7580 70 7 -6.6 -2.4 | 52 8 -6.4 -5.1 6 300 9680 80 13 -12.8 -2.3 | 69 14 -12.7 -4.9 7 250 10950 95 19 -18.9 1.7 | 87 19 -18.8 -1.0 8 200 12420 95 15 -14.9 1.3 | 85 15 -14.8 -1.4 9 150 14200 85 10 -10.0 -0.9 | 70 10 -9.8 -3.6 10 100 16550 105 31 -29.9 8.0 | 100 30 -29.8 5.3 11 74 18288 200 12 4.1 11.3 | 206 10 4.2 8.6 12 70 18620 260 11 10.8 1.9 | 274 11 11.0 -0.8 Wind Parameters Mean winds (0-6000m): 147.3 at 3.6 knts Storm direction: 177.3 at 2.7 knts Shear (0-3000m) pos: 0.0 neg: 0.7 tot: 0.7 10-3/s Storm rel Dir Shear (0-3000m): -90.0 deg Storm rel helicity (0-3000m) pos: 0.0 neg: -2.0 tot: -2.0 m^2/s^2 ave: -0.7 10^-3 m/s^2 rel: -0.82 Storm rel vorticity (0-3000m) horiz: 0.7 stream: -0.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 452.21 Bulk Shear: 3.76 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 ------------------------------------------------------------------------------- 500 237 4 278 3| 0.0 0.7 0.7| 0.0 -0.3 -0.3 -0.5 -0.95| 0.7 -0.7 1000 230 4 273 3| 0.0 0.7 0.7| 0.0 -0.5 -0.5 -0.5 -0.91| 0.7 -0.6 1500 223 4 266 3| 0.0 0.7 0.7| 0.0 -0.8 -0.8 -0.6 -0.87| 0.7 -0.6 2000 215 4 259 2| 0.0 0.7 0.7| 0.0 -1.2 -1.2 -0.6 -0.85| 0.7 -0.6 2500 208 4 250 2| 0.0 0.7 0.7| 0.0 -1.6 -1.6 -0.6 -0.83| 0.7 -0.6 3000 200 4 239 2| 0.0 0.7 0.7| 0.0 -2.0 -2.0 -0.7 -0.82| 0.7 -0.6 4000 184 4 201 1| 0.0 0.6 0.6| 0.0 -3.0 -3.0 -0.8 -0.82| 0.7 -0.6 5000 166 4 140 1| 0.0 0.6 0.6| 0.0 -4.3 -4.3 -0.9 -0.83| 0.7 -0.6 6000 147 4 100 2| 0.0 0.5 0.5| 0.0 -5.7 -5.7 -1.0 -0.85| 0.6 -0.5 Wrote GIF file: /home/apache/climate/data/raob//FK870/skewt/FK870.skewt.20251013.12.gif