UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120923.upa.cvt Date: 2300Z 9 DEC 25 Searching for NFFN... Searching the city database file for: NFFN ... Date:2300Z 9 DEC 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 1011 18 30.2 23.2 66 7.0 25.0 310 11 302.4 305.7 297.8 355.6 17.98 1 1004 77 28.0 22.0 70 6.0 23.6 320 11 300.8 303.9 296.7 350.2 16.81 2 1000 111 27.8 21.8 70 6.0 23.5 325 11 301.0 304.0 296.6 349.9 16.66 3 925 799 22.6 20.5 88 2.1 21.1 65 3 302.4 305.5 297.0 351.6 16.63 4 850 1532 17.8 15.1 84 2.7 16.0 65 8 304.8 307.2 295.0 343.0 12.80 5 809 1953 15.0 13.1 88 1.9 13.7 23 6 306.2 308.4 294.7 341.6 11.80 6 770 2372 14.2 6.2 59 8.0 9.4 350 7 309.7 311.1 292.6 333.4 7.74 7 750 2594 12.8 2.8 51 10.0 7.2 335 9 310.5 311.7 291.7 329.8 6.25 8 700 3170 8.2 2.2 66 6.0 4.9 310 17 311.6 312.8 292.1 331.5 6.42 9 684 3360 6.8 2.1 72 4.7 4.2 305 22 312.1 313.3 292.4 332.4 6.52 10 649 3789 4.6 -6.4 45 11.0 -0.5 326 25 314.3 315.0 290.6 326.0 3.65 11 638 3928 3.6 3.0 96 0.6 3.2 333 26 314.7 316.1 293.9 338.1 7.47 12 622 4133 3.4 -3.6 60 7.0 -0.1 330 28 316.8 317.7 292.2 331.9 4.72 13 616 4212 4.0 -20.0 15 24.0 -4.4 327 29 318.3 318.6 289.6 322.7 1.27 14 613 4252 4.2 -26.8 8 31.0 -5.2 326 30 319.0 319.2 289.2 321.5 0.70 15 567 4881 0.8 -27.2 10 28.0 -7.4 330 27 322.2 322.4 290.2 324.8 0.72 16 559 4995 1.4 -44.6 2 46.0 -8.2 332 26 324.2 324.3 290.2 324.7 0.13 17 500 5880 -5.9 -48.9 2 43.0 -13.1 320 27 325.8 325.9 290.6 326.2 0.09 18 475 6279 -9.1 -51.1 2 42.0 -15.4 323 32 326.7 326.7 290.9 327.0 0.07 19 400 7590 -15.9 -43.9 7 28.0 -20.4 315 44 334.3 334.4 293.1 335.1 0.19 20 397 7647 -16.1 -45.1 6 29.0 -20.6 315 45 334.8 334.8 293.2 335.5 0.17 21 339 8813 -26.1 -36.1 39 10.0 -27.8 301 52 336.6 336.7 294.0 338.6 0.52 22 333 8942 -27.3 -38.3 34 11.0 -28.9 299 53 336.7 336.8 293.9 338.3 0.42 23 309 9478 -29.1 -53.1 8 24.0 -31.3 293 56 341.5 341.5 294.8 341.8 0.09 24 305 9572 -28.5 -55.5 6 27.0 -30.9 291 56 343.6 343.6 295.3 343.9 0.07 25 300 9690 -29.3 -52.3 9 23.0 -31.4 290 57 344.1 344.1 295.4 344.5 0.10 26 250 10960 -40.3 -48.3 42 8.0 -40.9 280 65 346.2 346.2 296.0 346.9 0.19 27 225 11669 -46.9 -49.6 74 2.7 -47.0 282 67 346.6 346.7 296.1 347.4 0.18 28 209 12154 -51.1 -54.2 69 3.1 -51.2 284 69 347.4 347.5 296.2 347.9 0.12 29 200 12440 -52.9 -56.2 67 3.3 -53.0 285 70 349.0 349.0 296.5 349.4 0.09 30 168 13540 -62.5 -64.8 74 2.3 -62.6 279 76 350.9 350.9 296.8 351.0 0.04 31 150 14230 -68.1 -70.3 73 2.2 -68.1 275 80 352.8 352.8 297.3 352.9 0.02 32 141 14599 -71.1 -73.3 72 2.2 -71.1 277 77 353.8 353.8 297.5 353.9 0.01 33 138 14726 -71.9 -73.5 79 1.6 -71.9 278 77 354.6 354.6 297.6 354.7 0.01 34 129 15121 -73.9 -80.9 33 7.0 -73.9 281 74 357.9 357.9 298.3 357.9 0.00 35 122 15445 -76.5 -80.6 52 4.1 -76.5 283 71 358.9 358.9 298.5 358.9 0.00 36 119 15588 -76.9 -82.9 38 6.0 -76.9 284 70 360.7 360.7 298.8 360.8 0.00 37 113 15886 -76.5 -89.5 11 13.0 -76.5 286 68 366.9 366.9 300.0 366.9 0.00 38 102 16469 -81.3 -90.3 20 9.0 -81.3 290 64 368.6 368.6 300.3 368.6 0.00 39 100 16580 -80.7 -89.7 21 9.0 -80.7 285 57 371.8 371.8 300.9 371.8 0.00 40 84 17578 -76.1 -89.1 11 13.0 -76.2 244 16 400.2 400.2 305.2 400.2 0.00 41 84 17578 -76.1 -89.1 11 13.0 -76.2 244 16 400.2 400.2 305.2 400.2 0.00 42 75 18226 -80.9 -89.9 21 9.0 -80.9 306 11 403.3 403.3 305.6 403.3 0.00 43 70 18620 -76.9 -88.9 13 12.0 -76.9 360 13 419.9 419.9 307.7 419.9 0.00 44 63 19232 -71.5 -89.5 5 18.0 -71.6 79 10 444.6 444.6 310.3 444.6 0.00 45 61 19421 -71.9 -88.9 6 17.0 -72.0 101 9 447.8 447.8 310.7 447.9 0.00 46 50 20600 -68.3 -90.3 3 22.0 -68.5 90 23 482.5 482.5 313.7 482.5 0.00 47 44 21371 -67.5 -90.5 2 23.0 -67.8 96 30 502.5 502.5 315.1 502.5 0.00 48 41 21805 -60.9 -88.9 1 28.0 -61.5 90 33 529.2 529.2 316.9 529.2 0.00 49 32 23369 -55.5 -85.5 1 30.0 -56.9 80 29 582.5 582.5 319.8 582.5 0.01 50 30 23780 -56.7 -85.7 1 29.0 -58.0 65 33 590.1 590.1 320.2 590.1 0.01 51 27 24445 -58.1 -86.1 2 28.0 -59.3 67 32 604.2 604.2 320.8 604.2 0.01 52 20 26350 -54.1 -85.1 1 31.0 -56.5 100 39 670.6 670.6 323.4 670.7 0.01 53 15 28206 -51.7 -83.7 1 32.0 -55.4 85 41 736.1 736.1 325.6 736.3 0.02 TRP 102 16469 -81.3 -90.3 20 9.0 -81.3 290 64 368.6 368.6 300.3 368.6 0.00 WND 150 14230 -68.1 -70.3 73 2.2 -68.1 275 80 352.8 352.8 297.3 352.9 0.02 Sounding variables and indices 1000-500 mb thick: 5769.00 m Freezing level: 547.68 mb = 5164.91 m = 16945.04 ft Wetbulb zero: 652.98 mb = 3738.87 m = 12266.49 ft Precipitable water: 1.75 inches Sfc-500 mean rel hum: 52.26 % Est. max temperature: 32.24 C = 90.03 F Sfc-Lift cond lev (LCL): 913.94 mb = 903.30 m = 2963.54 ft T: 21.92 C 700-500 lapse rate: 5.20 C/km ThetaE index: 21.78 C Layer 850.0- 700.0 mb Conv cond level (CCL): 879.15 mb = 1239.70 m = 4067.20 ft Mean mixing ratio: 16.64 g/kg Conv temperature: 31.65 C = 88.98 F Cap Strength: 1.19 C Lifted Index: -3.28 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.43 C Lifted Index @700 mb: -2.66 C Showalter Index: -0.32 C Risk: Thunderstorms probable Total Totals Index: 44.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 21.00 C K Index: 32.80 Risk: 60-80 % chance of thunderstorms Sweat Index: 224.20 Risk: None Energy Index: -3.17 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1056.65 J/kg Max Up Vert Vel: 45.97 m/s Conv Inhibition (B-): 15.27 J/kg Cap Strength: 1.19 C Lift Cond Lev (LCL): 905.89 mb = 979.96 m = 3215.06 ft Lev Free Conv (LFC): 850.89 mb = 1522.92 m = 4996.40 ft Equ Level (EL): 170.89 mb = 13432.45 m = 44069.18 ft B at Equ Level: 1056.14 J/kg Max Parcel Lev (MPL): 90.89 mb = 17126.80 m = 56189.61 ft Wind level data Storm motion: 360 at 12 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 1011 18 310 11 8.4 -7.1 | 239 10 8.3 5.0 1 1000 111 325 11 6.3 -9.0 | 244 7 6.2 3.1 2 978 305 330 10 5.0 -8.7 | 235 6 4.9 3.4 3 945 610 35 1 -0.6 -0.8 | 177 11 -0.7 11.2 4 925 799 65 3 -2.7 -1.3 | 165 11 -2.8 10.8 5 913 914 60 6 -5.2 -3.0 | 150 11 -5.3 9.1 6 851 1524 65 8 -7.3 -3.4 | 140 11 -7.4 8.7 7 850 1532 65 8 -7.3 -3.4 | 140 11 -7.4 8.7 8 791 2134 5 5 -0.4 -5.0 | 176 7 -0.5 7.1 9 736 2743 325 10 5.7 -8.2 | 235 7 5.6 3.9 10 710 3048 310 14 10.7 -9.0 | 254 11 10.6 3.1 11 700 3170 310 17 13.0 -10.9 | 265 13 12.9 1.1 12 684 3353 305 22 18.0 -12.6 | 272 18 17.9 -0.6 13 634 3962 335 26 11.0 -23.6 | 317 16 10.9 -11.5 14 611 4267 325 30 17.2 -24.6 | 306 21 17.1 -12.5 15 588 4572 325 29 16.6 -23.8 | 305 20 16.5 -11.7 16 545 5182 335 24 10.1 -21.8 | 314 14 10.0 -9.7 17 525 5486 320 16 10.3 -12.3 | 271 10 10.2 -0.2 18 506 5791 310 27 20.7 -17.4 | 284 21 20.6 -5.3 19 500 5880 320 27 17.4 -20.7 | 297 19 17.3 -8.6 20 486 6096 325 30 17.2 -24.6 | 306 21 17.1 -12.5 21 431 7010 315 39 27.6 -27.6 | 299 32 27.5 -15.5 22 400 7590 315 44 31.1 -31.1 | 302 36 31.0 -19.0 23 398 7620 315 45 31.8 -31.8 | 302 37 31.7 -19.8 24 300 9690 290 57 53.6 -19.5 | 278 54 53.5 -7.4 25 250 10960 280 65 64.0 -11.3 | 269 64 63.9 0.8 26 200 12440 285 70 67.6 -18.1 | 275 68 67.5 -6.1 27 150 14230 275 80 79.7 -7.0 | 266 80 79.6 5.1 28 102 16469 290 64 60.1 -21.9 | 279 61 60.0 -9.8 29 100 16580 285 57 55.1 -14.8 | 273 55 55.0 -2.7 30 83 17678 240 12 10.4 6.0 | 210 21 10.3 18.1 31 70 18593 350 10 1.7 -9.8 | 216 3 1.6 2.2 32 70 18620 360 13 -0.0 -13.0 | 6 1 -0.1 -0.9 33 67 18898 5 11 -1.0 -11.0 | 136 2 -1.1 1.1 34 63 19202 75 10 -9.7 -2.6 | 134 14 -9.8 9.5 35 60 19507 110 8 -7.5 2.7 | 153 17 -7.6 14.8 36 54 20117 80 28 -27.6 -4.9 | 105 29 -27.7 7.2 37 52 20422 75 21 -20.3 -5.4 | 108 21 -20.4 6.6 38 50 20600 90 23 -23.0 0.0 | 118 26 -23.1 12.1 39 49 20726 70 20 -18.8 -6.8 | 105 20 -18.9 5.2 40 47 21031 100 28 -27.6 4.9 | 121 32 -27.7 16.9 41 38 22250 85 35 -34.9 -3.1 | 104 36 -35.0 9.0 42 37 22555 75 27 -26.1 -7.0 | 101 27 -26.2 5.1 43 32 23470 80 29 -28.6 -5.0 | 104 30 -28.7 7.0 44 30 23774 65 32 -29.0 -13.5 | 87 29 -29.1 -1.5 45 30 23780 65 33 -29.9 -13.9 | 86 30 -30.0 -1.9 46 27 24384 65 32 -29.0 -13.5 | 87 29 -29.1 -1.5 47 26 24689 75 30 -29.0 -7.8 | 98 29 -29.1 4.3 48 25 24994 105 29 -28.0 7.5 | 125 34 -28.1 19.6 49 20 26350 100 39 -38.4 6.8 | 116 43 -38.5 18.8 50 19 26518 105 38 -36.7 9.8 | 121 43 -36.8 21.9 51 15 27432 85 41 -40.8 -3.6 | 102 42 -40.9 8.5 52 14 27737 80 35 -34.5 -6.1 | 100 35 -34.6 6.0 53 11 28651 80 29 -28.6 -5.0 | 104 30 -28.7 7.0 Wind Parameters Mean winds (0-6000m): 329.5 at 16.1 knts Storm direction: 359.5 at 12.1 knts Shear (0-3000m) pos: 2.8 neg: 3.1 tot: 5.9 10-3/s Storm rel Dir Shear (0-3000m): 14.1 deg Storm rel helicity (0-3000m) pos: 27.1 neg: -30.6 tot: -3.5 m^2/s^2 ave: -1.2 10^-3 m/s^2 rel: 0.01 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 0.0 10^-3/s Energy-Hel index: 0.07 Bulk Rich Number: 161.47 Bulk Shear: 6.54 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 ------------------------------------------------------------------------------- 500 329 9 227 6| 10.3 0.0 10.3| 1.4 -10.8 -9.4 -18.7 -0.53| 13.0 -6.9 1000 346 6 193 6| 7.5 0.0 7.5| 2.9 -26.1 -23.2 -23.2 -0.55| 10.7 -5.9 1500 18 7 159 6| 5.5 0.0 5.5| 2.9 -30.6 -27.6 -18.4 -0.57| 7.7 -4.4 2000 27 7 153 7| 4.1 1.5 5.7| 10.6 -30.6 -20.0 -10.0 -0.33| 7.4 -2.4 2500 20 7 158 6| 3.3 2.2 5.6| 17.9 -30.6 -12.6 -5.0 -0.14| 7.0 -1.0 3000 2 7 175 5| 2.8 3.1 5.9| 27.1 -30.6 -3.5 -1.2 0.01| 7.1 0.0 4000 336 11 246 5| 2.3 2.4 4.6| 96.5 -30.6 65.9 16.5 0.27| 8.1 2.2 5000 332 15 277 7| 2.2 2.3 4.5|105.7 -46.0 59.7 11.9 0.21| 7.6 1.6 6000 330 16 283 8| 2.0 1.9 3.9|150.5 -71.3 79.3 13.2 0.17| 8.6 1.5 Wrote GIF file: /home/apache/climate/data/raob//NFFN/skewt/NFFN.skewt.20251209.23.gif