UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042923.upa.cvt Date: 2300Z 29 APR 25 Searching for NFFN... Searching the city database file for: NFFN ... Date:2300Z 29 APR 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 1015 18 31.0 24.0 66 7.0 25.8 350 6 302.9 306.3 298.4 358.7 18.82 1 1007 83 28.8 22.8 70 6.0 24.4 337 7 301.3 304.6 297.3 353.2 17.61 2 1000 140 28.2 23.2 74 5.0 24.5 325 8 301.4 304.7 297.7 354.9 18.19 3 928 799 22.4 21.1 92 1.3 21.5 342 9 301.9 305.1 297.3 352.8 17.22 4 925 827 22.6 19.6 83 3.0 20.5 340 9 302.4 305.3 296.4 348.8 15.71 5 850 1560 18.6 13.6 73 5.0 15.3 315 11 305.6 307.8 294.4 340.4 11.60 6 848 1580 18.4 13.6 74 4.8 15.2 314 11 305.6 307.8 294.4 340.5 11.62 7 823 1837 18.0 3.0 37 15.0 9.5 305 11 307.8 308.9 290.5 325.6 5.77 8 764 2470 14.0 8.0 67 6.0 10.3 303 11 310.1 311.8 293.6 337.3 8.85 9 748 2649 13.6 5.6 58 8.0 8.8 308 12 311.6 313.0 293.1 335.2 7.65 10 743 2706 13.0 11.1 88 1.9 11.7 309 12 311.5 313.7 295.7 346.1 11.25 11 734 2808 12.8 6.8 67 6.0 9.2 309 12 312.4 314.0 294.0 338.6 8.48 12 719 2982 11.4 9.2 86 2.2 10.0 306 14 312.7 314.7 295.3 344.3 10.22 13 705 3146 11.2 3.2 58 8.0 6.6 302 13 314.2 315.6 293.2 335.7 6.85 14 700 3206 10.6 2.6 58 8.0 6.1 300 12 314.2 315.5 293.0 335.0 6.61 15 676 3495 8.2 4.8 79 3.4 6.2 281 11 314.7 316.2 294.3 339.7 8.01 16 655 3755 6.8 -2.2 53 9.0 2.1 272 10 316.0 316.9 292.2 331.8 4.97 17 614 4281 2.6 -1.9 72 4.5 0.3 255 9 317.0 318.1 292.9 334.4 5.43 18 604 4414 2.4 -7.6 48 10.0 -2.2 263 10 318.3 319.0 291.7 329.9 3.57 19 591 4590 1.4 -2.3 76 3.7 -0.5 275 12 319.1 320.2 293.5 336.7 5.47 20 582 4713 1.2 -8.8 47 10.0 -3.3 263 12 320.3 320.9 292.1 331.4 3.38 21 579 4755 0.8 -4.1 70 4.9 -1.7 259 12 320.3 321.2 293.3 336.1 4.88 22 563 4979 -0.3 -8.3 55 8.0 -4.0 245 13 321.6 322.3 292.7 333.5 3.63 23 556 5079 -1.1 -4.9 75 3.8 -3.0 245 14 321.8 322.7 293.7 337.4 4.78 24 539 5327 -1.7 -12.7 43 11.0 -6.2 245 16 323.9 324.5 292.5 332.9 2.67 25 523 5566 -3.7 -6.3 82 2.6 -5.0 245 19 324.3 325.2 294.1 339.4 4.57 26 512 5733 -4.7 -11.7 58 7.0 -7.7 245 20 325.1 325.7 293.2 335.4 3.05 27 505 5842 -4.5 -32.5 9 28.0 -11.5 236 23 326.6 326.7 291.3 328.4 0.49 28 500 5920 -4.9 -35.9 7 31.0 -12.0 220 26 327.1 327.1 291.3 328.4 0.36 29 495 5999 -5.1 -38.1 5 33.0 -12.3 220 26 327.8 327.8 291.4 328.9 0.29 30 489 6095 -5.3 -38.3 5 33.0 -12.5 220 26 328.7 328.7 291.6 329.8 0.29 31 479 6258 -4.7 -43.7 3 39.0 -12.5 220 27 331.4 331.4 292.3 332.0 0.17 32 400 7650 -15.3 -46.3 5 31.0 -20.1 200 22 335.1 335.1 293.2 335.7 0.15 33 357 8494 -22.9 -46.9 9 24.0 -25.9 200 30 336.0 336.0 293.4 336.6 0.16 34 339 8872 -24.1 -52.1 6 28.0 -27.1 203 26 339.4 339.4 294.3 339.7 0.09 35 300 9750 -30.5 -57.5 5 27.0 -32.6 195 30 342.4 342.4 295.0 342.6 0.05 36 250 11020 -40.7 -60.7 10 20.0 -41.6 195 40 345.6 345.6 295.7 345.7 0.04 37 221 11847 -46.7 -68.7 6 22.0 -47.3 204 32 348.7 348.7 296.4 348.8 0.02 38 200 12500 -52.5 -70.5 10 18.0 -52.8 190 31 349.6 349.6 296.5 349.7 0.01 39 172 13458 -60.5 -73.5 17 13.0 -60.6 205 28 351.8 351.8 297.0 351.9 0.01 40 150 14300 -66.3 -80.3 12 14.0 -66.4 200 41 355.9 355.9 297.9 355.9 0.00 41 145 14505 -67.7 -81.7 12 14.0 -67.8 200 41 356.9 356.9 298.1 356.9 0.00 42 100 16660 -82.3 -86.1 52 3.8 -82.3 220 20 368.7 368.7 300.4 368.7 0.00 43 95 16947 -83.3 -87.6 47 4.3 -83.3 205 23 372.2 372.2 300.9 372.2 0.00 44 70 18680 -77.3 -91.3 9 14.0 -77.3 0 0 419.0 419.0 307.6 419.0 0.00 45 66 19021 -72.7 -90.7 5 18.0 -72.8 84 10 436.1 436.1 309.5 436.1 0.00 46 53 20319 -68.9 -91.9 2 23.0 -69.1 114 9 473.2 473.2 312.9 473.2 0.00 47 50 20670 -65.5 -91.5 2 26.0 -65.8 110 27 489.1 489.1 314.1 489.1 0.00 48 43 21600 -60.1 -90.1 1 30.0 -60.7 108 17 524.0 524.0 316.5 524.0 0.00 49 38 22368 -62.3 -90.3 1 28.0 -62.9 51 22 537.2 537.2 317.3 537.2 0.00 50 30 23860 -53.3 -87.3 1 34.0 -55.2 80 26 599.3 599.3 320.6 599.4 0.01 51 29 24079 -53.1 -87.1 1 34.0 -55.1 80 24 605.7 605.7 320.9 605.8 0.01 52 26 24779 -55.7 -87.7 1 32.0 -57.3 67 31 617.6 617.6 321.4 617.6 0.01 53 20 26470 -50.9 -85.9 1 35.0 -54.1 90 26 680.4 680.4 323.8 680.5 0.01 54 16 27932 -47.9 -84.9 1 37.0 -52.7 104 23 735.0 735.0 325.5 735.1 0.02 TRP 95 16947 -83.3 -87.6 47 4.3 -83.3 205 23 372.2 372.2 300.9 372.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5780.00 m Freezing level: 567.36 mb = 4918.10 m = 16135.31 ft Wetbulb zero: 612.97 mb = 4295.08 m = 14091.31 ft Precipitable water: 1.91 inches Sfc-500 mean rel hum: 65.51 % Est. max temperature: 33.12 C = 91.61 F Sfc-Lift cond lev (LCL): 917.75 mb = 895.24 m = 2937.11 ft T: 22.23 C 700-500 lapse rate: 5.71 C/km ThetaE index: 14.90 C Layer 823.0- 764.0 mb Conv cond level (CCL): 887.21 mb = 1188.62 m = 3899.62 ft Mean mixing ratio: 17.48 g/kg Conv temperature: 32.16 C = 89.88 F Cap Strength: 0.97 C Lifted Index: -3.16 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.92 C Lifted Index @700 mb: -0.90 C Showalter Index: 1.70 C Risk: Showers probable Total Totals Index: 42.00 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 18.50 C K Index: 29.10 Risk: 40-60 % chance of thunderstorms Sweat Index: 211.20 Risk: None Energy Index: -2.21 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1266.33 J/kg Max Up Vert Vel: 50.33 m/s Conv Inhibition (B-): 19.25 J/kg Cap Strength: 1.09 C Lift Cond Lev (LCL): 916.43 mb = 907.68 m = 2977.91 ft Lev Free Conv (LFC): 791.43 mb = 2170.10 m = 7119.67 ft Equ Level (EL): 161.43 mb = 13848.28 m = 45433.45 ft B at Equ Level: 1261.21 J/kg Max Parcel Lev (MPL): 81.43 mb = 17821.83 m = 58469.85 ft Wind level data Storm motion: 312 at 9 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 1015 18 350 6 1.0 -5.9 | 91 6 -5.6 0.1 1 1000 140 325 8 4.6 -6.6 | 75 2 -2.1 -0.6 2 981 305 350 6 1.0 -5.9 | 91 6 -5.6 0.1 3 948 610 355 8 0.7 -8.0 | 72 6 -6.0 -2.0 4 925 827 340 9 3.1 -8.5 | 56 4 -3.6 -2.5 5 916 914 335 11 4.6 -10.0 | 27 4 -2.0 -4.0 6 854 1524 320 12 7.7 -9.2 | 342 3 1.0 -3.2 7 850 1560 315 11 7.8 -7.8 | 328 2 1.1 -1.8 8 794 2134 295 10 9.1 -4.2 | 233 3 2.4 1.8 9 739 2743 310 12 9.2 -7.7 | 304 3 2.5 -1.7 10 713 3048 305 14 11.5 -8.0 | 293 5 4.8 -2.0 11 700 3206 300 12 10.4 -6.0 | 270 4 3.7 -0.0 12 687 3353 285 12 11.6 -3.1 | 239 6 4.9 2.9 13 662 3658 275 10 10.0 -0.9 | 213 6 3.3 5.1 14 614 4267 255 9 8.7 2.3 | 194 9 2.0 8.3 15 591 4572 275 12 12.0 -1.0 | 227 7 5.3 5.0 16 569 4877 245 12 10.9 5.1 | 201 12 4.2 11.1 17 508 5791 245 21 19.0 8.9 | 220 19 12.3 14.9 18 500 5920 220 26 16.7 19.9 | 201 28 10.0 25.9 19 489 6096 220 26 16.7 19.9 | 201 28 10.0 25.9 20 470 6401 220 28 18.0 21.4 | 202 30 11.3 27.4 21 452 6706 200 22 7.5 20.7 | 182 27 0.8 26.7 22 434 7010 215 19 10.9 15.6 | 191 22 4.2 21.6 23 418 7315 205 15 6.3 13.6 | 179 20 -0.3 19.6 24 402 7620 200 22 7.5 20.7 | 182 27 0.8 26.7 25 400 7650 200 22 7.5 20.7 | 182 27 0.8 26.7 26 354 8534 200 31 10.6 29.1 | 186 35 3.9 35.1 27 326 9144 205 22 9.3 19.9 | 186 26 2.6 25.9 28 313 9449 225 17 12.0 12.0 | 196 19 5.3 18.0 29 300 9750 195 30 7.8 29.0 | 182 35 1.1 35.0 30 287 10058 195 31 8.0 29.9 | 182 36 1.3 35.9 31 275 10363 190 42 7.3 41.4 | 181 47 0.6 47.4 32 252 10973 195 40 10.4 38.6 | 185 45 3.7 44.6 33 250 11020 195 40 10.4 38.6 | 185 45 3.7 44.6 34 219 11887 205 32 13.5 29.0 | 191 36 6.8 35.0 35 200 12497 190 33 5.7 32.5 | 179 39 -1.0 38.5 36 200 12500 190 31 5.4 30.5 | 178 37 -1.3 36.5 37 173 13411 205 27 11.4 24.5 | 189 31 4.7 30.5 38 150 14300 200 41 14.0 38.5 | 189 45 7.3 44.5 39 142 14630 200 41 14.0 38.5 | 189 45 7.3 44.5 40 134 14935 175 27 -2.4 26.9 | 165 34 -9.0 32.9 41 128 15240 175 16 -1.4 15.9 | 160 23 -8.1 21.9 42 115 15850 215 15 8.6 12.3 | 186 18 1.9 18.3 43 109 16154 215 11 6.3 9.0 | 179 15 -0.4 15.0 44 104 16459 245 11 10.0 4.6 | 197 11 3.3 10.6 45 100 16660 220 20 12.9 15.3 | 196 22 6.2 21.3 46 95 16947 205 23 9.7 20.8 | 186 27 3.0 26.8 47 93 17069 220 20 12.9 15.3 | 196 22 6.2 21.3 48 88 17374 205 22 9.3 19.9 | 186 26 2.6 25.9 49 79 17983 165 23 -6.0 22.2 | 156 31 -12.6 28.2 50 75 18288 145 15 -8.6 12.3 | 140 24 -15.3 18.3 51 71 18593 130 15 -11.5 9.6 | 131 24 -18.2 15.6 52 70 18680 0 0 -0.0 -0.0 | 132 9 -6.7 6.0 53 67 18898 35 10 -5.7 -8.2 | 80 13 -12.4 -2.2 54 64 19202 150 10 -5.0 8.7 | 141 19 -11.7 14.7 55 61 19507 105 17 -16.4 4.4 | 114 25 -23.1 10.4 56 58 19812 65 10 -9.1 -4.2 | 96 16 -15.7 1.8 57 55 20117 230 3 2.3 1.9 | 151 9 -4.4 7.9 58 52 20422 60 12 -10.4 -6.0 | 90 17 -17.1 -0.0 59 50 20670 110 27 -25.4 9.2 | 115 35 -32.1 15.2 60 50 20726 120 18 -15.6 9.0 | 124 27 -22.3 15.0 61 47 21031 110 28 -26.3 9.6 | 115 36 -33.0 15.6 62 45 21336 85 19 -18.9 -1.7 | 100 26 -25.6 4.3 63 43 21641 110 17 -16.0 5.8 | 118 26 -22.7 11.8 64 41 21946 65 19 -17.2 -8.0 | 85 24 -23.9 -2.0 65 39 22250 55 24 -19.7 -13.8 | 74 27 -26.3 -7.8 66 37 22555 45 20 -14.1 -14.1 | 69 22 -20.8 -8.1 67 35 22860 75 15 -14.5 -3.9 | 96 21 -21.2 2.1 68 34 23165 105 13 -12.6 3.4 | 116 21 -19.2 9.4 69 30 23774 130 21 -16.1 13.5 | 131 30 -22.8 19.5 70 30 23860 80 26 -25.6 -4.5 | 93 32 -32.3 1.5 71 29 24079 80 24 -23.6 -4.2 | 93 30 -30.3 1.8 72 28 24384 70 32 -30.1 -10.9 | 82 37 -36.8 -4.9 73 25 24994 65 31 -28.1 -13.1 | 78 35 -34.8 -7.1 74 24 25298 75 30 -29.0 -7.8 | 87 36 -35.7 -1.8 75 23 25603 60 26 -22.5 -13.0 | 77 30 -29.2 -7.0 76 20 26470 90 26 -26.0 0.0 | 100 33 -32.7 6.0 77 20 26518 85 16 -15.9 -1.4 | 102 23 -22.6 4.6 78 17 27127 105 21 -20.3 5.4 | 113 29 -27.0 11.4 79 13 28042 100 32 -31.5 5.6 | 107 40 -38.2 11.6 Wind Parameters Mean winds (0-6000m): 281.9 at 12.0 knts Storm direction: 311.9 at 9.0 knts Shear (0-3000m) pos: 0.9 neg: 1.4 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): -157.1 deg Storm rel helicity (0-3000m) pos: 3.2 neg: -14.3 tot: -11.0 m^2/s^2 ave: -3.7 10^-3 m/s^2 rel: -0.39 Storm rel vorticity (0-3000m) horiz: 4.5 stream: -1.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 87.39 Bulk Shear: 14.49 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 ------------------------------------------------------------------------------- 500 342 7 83 5| 1.5 0.0 1.5| 1.0 -3.0 -2.0 -4.0 -0.19| 7.4 -1.4 1000 343 8 69 5| 0.7 2.6 3.3| 1.0 -8.9 -8.0 -8.0 -0.47| 6.6 -3.1 1500 336 9 50 4| 0.5 2.4 2.9| 1.0 -11.3 -10.3 -6.9 -0.55| 5.3 -2.9 2000 328 10 37 3| 0.4 2.2 2.5| 1.0 -13.3 -12.3 -6.2 -0.61| 5.2 -3.1 2500 322 10 21 2| 0.6 1.7 2.3| 2.4 -13.6 -11.2 -4.5 -0.47| 4.7 -2.2 3000 319 10 358 2| 0.9 1.4 2.3| 3.2 -14.3 -11.0 -3.7 -0.39| 4.5 -1.7 4000 309 10 292 2| 0.6 1.7 2.3| 3.2 -26.1 -22.8 -5.7 -0.51| 4.6 -2.4 5000 299 11 249 3| 0.7 1.9 2.7| 13.2 -36.5 -23.3 -4.7 -0.38| 4.9 -1.9 6000 282 12 235 6| 0.6 2.9 3.5| 28.3 -81.2 -52.9 -8.8 -0.33| 5.7 -1.9 Wrote GIF file: /home/apache/climate/data/raob//NFFN/skewt/NFFN.skewt.20250429.23.gif