UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102823.upa.cvt Date: 2300Z 28 OCT 25 Searching for NFFN... Searching the city database file for: NFFN ... Date:2300Z 28 OCT 25 Station: NFFN WMO ident: 91680 Latitude: -17.75 Longitude: 177.45 Elevation: 18.00 ------------------------------------------------------------------------------- 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 1018 18 32.8 19.8 46 13.0 23.5 80 11 304.4 307.1 296.0 347.4 14.42 1 970 447 27.6 17.6 54 10.0 20.6 29 12 303.4 305.8 294.9 342.4 13.16 2 925 862 23.6 16.6 65 7.0 18.8 65 15 303.4 305.8 294.8 341.9 12.95 3 850 1594 17.2 14.3 83 2.9 15.3 85 16 304.2 306.4 294.4 340.3 12.15 4 822 1879 14.4 13.7 96 0.7 14.0 72 22 304.1 306.4 294.3 340.1 12.08 5 809 2014 16.2 6.2 51 10.0 10.3 76 28 307.4 308.8 291.7 329.9 7.37 6 797 2141 14.6 6.6 59 8.0 9.8 80 34 307.0 308.5 291.8 330.4 7.69 7 785 2270 15.6 0.6 36 15.0 7.5 80 32 309.4 310.4 290.3 325.3 5.09 8 716 3045 11.0 1.0 50 10.0 5.5 80 21 312.6 313.7 291.9 330.7 5.75 9 700 3233 9.2 1.2 57 8.0 4.8 80 21 312.7 313.8 292.1 331.4 5.97 10 626 4148 1.4 -0.3 88 1.7 0.5 106 15 313.9 315.1 292.4 332.7 5.99 11 617 4264 1.2 -2.1 79 3.3 -0.5 109 14 315.0 316.0 292.2 331.8 5.32 12 602 4463 2.4 -23.6 13 26.0 -5.8 110 15 318.6 318.8 289.3 321.9 0.95 13 577 4805 0.0 -10.0 47 10.0 -4.3 78 12 319.7 320.3 291.7 329.9 3.10 14 539 5347 -4.5 -11.5 58 7.0 -7.4 65 9 320.6 321.2 291.8 330.3 2.94 15 538 5362 -4.5 -11.5 58 7.0 -7.4 65 9 320.8 321.3 291.9 330.5 2.95 16 522 5601 -3.9 -30.9 10 27.0 -10.8 69 12 324.3 324.4 290.6 326.3 0.56 17 500 5940 -5.7 -32.7 10 27.0 -12.3 80 18 326.1 326.2 291.1 327.9 0.49 18 444 6861 -10.9 -40.9 6 30.0 -16.5 120 24 330.8 330.8 292.2 331.7 0.24 19 431 7090 -10.9 -43.9 5 33.0 -16.7 114 26 333.6 333.7 292.9 334.3 0.18 20 401 7640 -15.1 -33.1 20 18.0 -19.1 335.1 335.2 293.7 337.3 0.59 TRP WND Sounding variables and indices 1000-500 mb thick: 5763.65 m Freezing level: 577.00 mb = 4805.14 m = 15764.70 ft Wetbulb zero: 621.59 mb = 4204.60 m = 13794.44 ft Precipitable water: 1.61 inches Sfc-500 mean rel hum: 55.24 % Est. max temperature: 32.40 C = 90.33 F Sfc-Lift cond lev (LCL): 844.02 mb = 1654.02 m = 5426.49 ft T: 16.61 C 700-500 lapse rate: 5.50 C/km ThetaE index: 17.48 C Layer 970.0- 797.0 mb Conv cond level (CCL): 832.61 mb = 1769.76 m = 5806.23 ft Mean mixing ratio: 13.39 g/kg Conv temperature: 32.56 C = 90.60 F Cap Strength: 2.46 C Lifted Index: -0.33 C Risk: Thunderstorms probable Lifted Index @700 mb: 0.45 C Showalter Index: 0.96 C Risk: Thunderstorms probable Total Totals Index: 42.90 C Risk: None Vertical Totals Index: 22.90 C Cross Totals Index: 20.00 C K Index: 29.20 Risk: 40-60 % chance of thunderstorms Sweat Index: 221.60 Risk: None Energy Index: -2.35 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 127.67 J/kg Max Up Vert Vel: 15.98 m/s Conv Inhibition (B-): 9.84 J/kg Cap Strength: 2.36 C Lift Cond Lev (LCL): 838.98 mb = 1704.92 m = 5593.49 ft Lev Free Conv (LFC): 823.98 mb = 1858.30 m = 6096.72 ft Equ Level (EL): 813.98 mb = 1961.97 m = 6436.82 ft B at Equ Level: -0.55 J/kg Max Parcel Lev (MPL): 813.98 mb = 1961.97 m = 6436.82 ft Wind level data Storm motion: 109 at 13 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 1018 18 80 11 -10.8 -1.9 | 347 6 1.4 -6.1 1 1000 173 320 12 7.7 -9.2 | 304 24 20.0 -13.4 2 985 305 355 11 1.0 -11.0 | 319 20 13.2 -15.2 3 952 610 70 13 -12.2 -4.4 | 360 9 0.0 -8.6 4 925 862 65 15 -13.6 -6.3 | 7 11 -1.3 -10.5 5 919 914 65 15 -13.6 -6.3 | 7 11 -1.3 -10.5 6 857 1524 85 16 -15.9 -1.4 | 33 7 -3.7 -5.6 7 850 1594 85 16 -15.9 -1.4 | 33 7 -3.7 -5.6 8 827 1829 70 20 -18.8 -6.8 | 31 13 -6.5 -11.0 9 797 2134 80 34 -33.5 -5.9 | 65 24 -21.2 -10.1 10 716 3048 80 21 -20.7 -3.6 | 47 12 -8.4 -7.9 11 700 3233 80 21 -20.7 -3.6 | 47 12 -8.4 -7.9 12 616 4267 110 14 -13.2 4.8 | 123 1 -0.9 0.6 13 593 4572 110 15 -14.1 5.1 | 117 2 -1.8 0.9 14 571 4877 65 11 -10.0 -4.6 | 345 9 2.3 -8.9 15 529 5486 65 8 -7.3 -3.4 | 327 9 5.0 -7.6 16 509 5791 75 19 -18.4 -4.9 | 34 11 -6.1 -9.1 17 500 5940 80 18 -17.7 -3.1 | 37 9 -5.5 -7.3 18 490 6096 80 18 -17.7 -3.1 | 37 9 -5.5 -7.3 19 453 6706 120 23 -19.9 11.5 | 134 11 -7.7 7.3 20 436 7010 120 24 -20.8 12.0 | 132 12 -8.5 7.8 21 419 7315 100 30 -29.5 5.2 | 93 17 -17.3 1.0 22 403 7620 110 28 -26.3 9.6 | 111 15 -14.0 5.4 Wind Parameters Mean winds (0-6000m): 78.9 at 17.3 knts Storm direction: 108.9 at 13.0 knts Shear (0-3000m) pos: 1.9 neg: 1.9 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): 61.3 deg Storm rel helicity (0-3000m) pos: 119.5 neg: -62.7 tot: 56.8 m^2/s^2 ave: 18.9 10^-3 m/s^2 rel: 0.17 Storm rel vorticity (0-3000m) horiz: 13.8 stream: 2.3 10^-3/s Energy-Hel index: 0.08 Bulk Rich Number: 3.14 Bulk Shear: 40.61 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 7 12 325 19| 0.0 6.9 6.9| 55.6 -42.3 13.3 26.5 0.03| 37.0 1.0 1000 45 13 346 14| 2.9 3.4 6.4| 67.5 -42.3 25.2 25.2 0.12| 22.7 2.8 1500 59 14 358 11| 3.3 2.3 5.6| 74.5 -42.3 32.2 21.5 0.18| 16.7 3.0 2000 66 15 9 11| 2.5 4.0 6.5|101.2 -43.8 57.4 28.7 0.23| 16.4 3.8 2500 71 19 27 12| 2.3 3.2 5.5|119.5 -50.9 68.6 27.4 0.23| 15.1 3.4 3000 73 20 34 12| 1.9 1.9 3.8|119.5 -62.7 56.8 18.9 0.17| 13.8 2.3 4000 77 20 38 11| 2.1 1.4 3.5|126.0 -63.4 62.6 15.7 0.19| 11.6 2.2 5000 80 18 38 9| 1.8 2.1 3.9|126.7 -72.8 53.9 10.8 0.09| 10.8 1.0 6000 79 17 32 9| 1.8 1.7 3.5|153.1 -77.5 75.7 12.6 0.16| 10.2 1.6 Wrote GIF file: /home/apache/climate/data/raob//NFFN/skewt/NFFN.skewt.20251028.23.gif