UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042912.upa.cvt Date: 1200Z 29 APR 25 Searching for FK870... Searching the city database file for: FK870 ... Date:1200Z 29 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 69 1 920 -10538 SFC 891 -5549 26.2 18.2 61 8.0 20.5 200 6 309.4 312.2 297.7 354.8 14.92 3 850 1517 21.0 16.0 73 5.0 17.5 190 11 308.1 310.7 296.4 349.2 13.58 4 776 2304 18.8 8.8 52 10.0 12.4 90 18 313.9 315.7 294.9 342.5 9.20 5 700 3179 11.6 7.2 74 4.4 8.9 80 24 315.3 317.1 295.3 343.9 9.15 6 500 5900 -3.5 -26.5 15 23.0 -10.3 100 24 328.8 328.9 292.2 331.9 0.88 7 400 7630 -14.9 -23.9 46 9.0 -17.5 80 5 335.6 335.9 294.5 340.6 1.39 8 300 9740 -29.7 -32.8 74 3.1 -30.3 285 13 343.5 343.7 295.9 346.6 0.81 9 250 11010 -40.1 -44.1 65 4.0 -40.5 305 11 346.4 346.5 296.1 347.7 0.30 10 200 12490 -52.7 -56.9 60 4.2 -52.8 300 12 349.3 349.3 296.5 349.7 0.09 11 150 14290 -67.3 -70.9 60 3.6 -67.3 80 6 354.2 354.2 297.5 354.2 0.02 12 100 16630 -81.7 -83.3 76 1.6 -81.7 45 14 369.9 369.9 300.5 369.9 0.00 13 91 17161 -81.3 15 10 380.8 14 87 17413 -81.7 0 9 384.9 15 81 17815 -81.3 337 6 393.7 16 76 18173 -81.9 316 4 399.7 17 70 18640 -77.7 325 27 418.2 18 62 19343 -72.3 302 27 444.9 19 50 20620 -67.9 260 27 483.5 20 42 21670 -66.9 252 30 510.7 21 30 23750 -57.3 120 27 588.4 22 21 26033 -52.3 97 35 666.7 23 20 26350 -50.5 90 38 681.6 24 19 26685 -50.5 92 39 691.7 25 18 27038 -50.1 93 39 703.7 26 15 28237 -47.3 94 46 750.7 27 13 29182 -48.3 92 53 778.6 28 10 30930 -43.1 90 65 858.7 29 9.5 31277 -41.7 876.7 30 8.9 31720 -41.1 895.5 31 8.7 31874 -41.7 899.0 TRP 776 2304 18.8 8.8 52 10.0 12.4 90 18 313.9 315.7 294.9 342.5 9.20 WND Sounding variables and indices 1000-500 mb thick: 5831.00 m Freezing level: 546.36 mb = 5269.30 m = 17287.53 ft Wetbulb zero: 607.44 mb = 4325.95 m = 14192.56 ft Precipitable water: 1.34 inches Sfc-500 mean rel hum: 52.65 % Est. max temperature: 31.21 C = 88.17 F Sfc-Lift cond lev (LCL): 792.84 mb = 2118.13 m = 6949.17 ft T: 19.32 C 700-500 lapse rate: 5.55 C/km ThetaE index: 12.25 C Layer 850.0- 700.0 mb Conv cond level (CCL): 706.23 mb = 3103.69 m = 10182.59 ft Mean mixing ratio: 12.77 g/kg Conv temperature: 31.83 C = 89.29 F Cap Strength: 4.09 C Lifted Index: -0.06 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.60 C Lifted Index @700 mb: 1.38 C Showalter Index: -0.27 C Risk: Thunderstorms probable Total Totals Index: 44.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.50 C Cross Totals Index: 19.50 C K Index: 36.10 Risk: > 80 % chance of thunderstorms Sweat Index: 238.00 Risk: None Energy Index: -3.27 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 380.98 J/kg Max Up Vert Vel: 27.60 m/s Conv Inhibition (B-): 165.81 J/kg Cap Strength: 4.09 C Lift Cond Lev (LCL): 761.40 mb = 2464.92 m = 8086.91 ft Lev Free Conv (LFC): 516.40 mb = 5639.04 m = 18500.57 ft Equ Level (EL): 236.40 mb = 11381.05 m = 37338.95 ft B at Equ Level: 380.87 J/kg Max Parcel Lev (MPL): 126.40 mb = 15278.03 m = 50124.15 ft Wind level data Storm motion: 224 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 ---------------------------------------------------------- 0 891 -5549 200 6 2.1 5.6 | 120 3 -2.2 1.3 1 850 1517 190 11 1.9 10.8 | 160 7 -2.3 6.5 2 776 2304 90 18 -18.0 0.0 | 79 23 -22.2 -4.4 3 700 3179 80 24 -23.6 -4.2 | 73 29 -27.9 -8.5 4 500 5900 100 24 -23.6 4.2 | 90 28 -27.9 -0.2 5 400 7630 80 5 -4.9 -0.9 | 60 11 -9.2 -5.2 6 300 9740 285 13 12.6 -3.4 | 313 11 8.3 -7.7 7 250 11010 305 11 9.0 -6.3 | 336 12 4.8 -10.7 8 200 12490 300 12 10.4 -6.0 | 329 12 6.2 -10.4 9 150 14290 80 6 -5.9 -1.0 | 62 12 -10.2 -5.4 10 100 16630 45 14 -9.9 -9.9 | 45 20 -14.1 -14.3 11 75 18288 310 3 2.3 -1.9 | 17 7 -1.9 -6.3 12 70 18640 325 27 15.5 -22.1 | 337 29 11.2 -26.5 13 50 20620 260 27 26.6 4.7 | 269 22 22.3 0.3 14 44 21336 275 30 29.9 -2.6 | 285 27 25.6 -7.0 15 30 23750 120 27 -23.4 13.5 | 108 29 -27.6 9.1 16 27 24384 135 19 -13.4 13.4 | 117 20 -17.7 9.1 17 20 26350 90 38 -38.0 0.0 | 84 42 -42.2 -4.4 18 17 27432 95 40 -39.8 3.5 | 89 44 -44.1 -0.9 19 10 30930 90 65 -65.0 0.0 | 86 69 -69.2 -4.4 Wind Parameters Mean winds (0-6000m): 194.2 at 8.1 knts Storm direction: 224.2 at 6.1 knts Shear (0-3000m) pos: 0.0 neg: 0.4 tot: 0.4 10-3/s Storm rel Dir Shear (0-3000m): 29.3 deg Storm rel helicity (0-3000m) pos: 1.3 neg: 0.0 tot: 1.3 m^2/s^2 ave: 0.4 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 0.4 stream: 0.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 717.15 Bulk Shear: 0.53 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 ------------------------------------------------------------------------------- 500 196 6 121 3| 0.0 0.4 0.4| 0.2 0.0 0.2 0.4 0.90| 0.4 0.3 1000 196 6 124 3| 0.0 0.4 0.4| 0.4 0.0 0.4 0.4 0.86| 0.4 0.3 1500 196 6 127 3| 0.0 0.4 0.4| 0.7 0.0 0.7 0.4 0.82| 0.4 0.3 2000 196 7 130 3| 0.0 0.4 0.4| 0.9 0.0 0.9 0.4 0.79| 0.4 0.3 2500 196 7 133 3| 0.0 0.4 0.4| 1.1 0.0 1.1 0.4 0.75| 0.4 0.3 3000 196 7 136 3| 0.0 0.4 0.4| 1.3 0.0 1.3 0.4 0.71| 0.4 0.3 4000 195 7 140 4| 0.0 0.4 0.4| 1.7 0.0 1.7 0.4 0.65| 0.4 0.2 5000 195 8 144 4| 0.0 0.4 0.4| 2.0 0.0 2.0 0.4 0.59| 0.4 0.2 6000 194 8 147 4| 0.0 0.4 0.4| 2.3 0.0 2.3 0.4 0.53| 0.4 0.2 Wrote GIF file: /home/apache/climate/data/raob//FK870/skewt/FK870.skewt.20250429.12.gif