UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042523.upa.cvt Date: 2300Z 25 APR 25 Searching for NFFN... Searching the city database file for: NFFN ... Date:2300Z 25 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 1016 18 28.4 21.4 66 7.0 23.4 290 5 300.2 303.1 296.0 347.0 15.99 1 1000 151 26.6 20.6 70 6.0 22.3 305 4 299.8 302.6 295.5 344.9 15.45 2 937 723 21.8 19.0 84 2.8 19.8 35 4 300.5 303.2 295.3 344.2 14.92 3 925 835 21.2 18.4 84 2.8 19.2 60 7 301.0 303.7 295.2 343.7 14.55 4 850 1562 16.2 16.2 100 0.0 16.2 70 18 303.1 305.7 295.3 343.9 13.76 5 829 1775 15.2 15.1 99 0.1 15.1 74 22 304.2 306.7 295.1 343.4 13.13 6 817 1899 18.2 7.2 49 11.0 11.5 73 22 308.7 310.2 292.4 332.6 7.82 7 808 1994 18.8 1.8 32 17.0 9.3 70 21 310.3 311.3 290.9 327.1 5.40 8 804 2036 18.8 0.8 30 18.0 8.9 68 21 310.7 311.7 290.7 326.5 5.04 9 711 3077 10.8 -7.2 28 18.0 2.4 60 7 313.0 313.6 289.7 323.1 3.13 10 700 3207 10.6 -8.4 25 19.0 1.9 60 7 314.2 314.8 289.9 323.6 2.90 11 634 4028 6.8 -21.2 11 28.0 -3.0 325 3 318.9 319.1 289.6 322.7 1.11 12 606 4398 5.6 -34.4 4 40.0 -5.1 293 2 321.7 321.7 289.6 322.9 0.34 13 573 4855 2.6 -9.4 41 12.0 -2.9 286 3 323.4 324.0 292.9 334.3 3.27 14 562 5012 2.2 -22.8 14 25.0 -6.2 283 4 324.7 324.9 291.3 328.5 1.09 15 553 5142 1.8 -12.2 35 14.0 -4.2 281 4 325.7 326.3 293.0 334.9 2.71 16 532 5454 0.4 -35.6 5 36.0 -8.7 276 5 327.7 327.7 291.4 329.0 0.35 17 500 5950 -2.5 -32.5 8 30.0 -10.4 315 5 330.0 330.1 292.2 331.9 0.50 18 453 6725 -7.1 -39.1 6 32.0 -13.9 293 6 333.7 333.7 293.0 334.8 0.28 19 400 7680 -14.1 -31.1 22 17.0 -18.2 260 8 336.7 336.8 294.1 339.3 0.71 20 362 8428 -19.9 -31.9 34 12.0 -22.5 285 10 338.7 338.8 294.7 341.4 0.73 21 300 9790 -30.7 -54.7 8 24.0 -32.7 330 14 342.1 342.1 294.9 342.4 0.08 22 293 9957 -32.1 -57.1 7 25.0 -33.9 323 13 342.4 342.5 295.0 342.7 0.06 23 273 10453 -35.3 -65.3 3 30.0 -36.8 302 12 344.8 344.8 295.5 344.9 0.02 24 250 11060 -40.1 -58.1 13 18.0 -41.1 280 10 346.4 346.5 295.9 346.7 0.06 25 241 11308 -42.3 -55.3 23 13.0 -43.0 277 11 346.8 346.8 296.0 347.2 0.09 26 236 11449 -43.5 -50.5 46 7.0 -43.9 275 12 347.1 347.1 296.1 347.7 0.16 27 231 11593 -44.5 -58.5 20 14.0 -45.1 273 12 347.7 347.7 296.2 347.9 0.06 28 221 11887 -46.7 -62.7 15 16.0 -47.3 269 13 348.7 348.7 296.4 348.9 0.04 29 212 12161 -49.1 -58.1 34 9.0 -49.4 265 15 349.2 349.2 296.5 349.5 0.07 30 201 12508 -51.5 -66.5 15 15.0 -51.8 260 16 350.7 350.7 296.8 350.8 0.02 31 200 12540 -51.9 -65.9 17 14.0 -52.2 260 16 350.6 350.6 296.8 350.7 0.03 32 175 13387 -59.9 -70.9 22 11.0 -60.0 246 23 351.1 351.1 296.9 351.1 0.02 33 171 13531 -61.1 -66.1 51 5.0 -61.2 243 23 351.4 351.4 297.0 351.5 0.03 34 157 14054 -65.5 -75.5 24 10.0 -65.6 235 22 352.6 352.6 297.2 352.7 0.01 35 150 14330 -67.3 -76.3 27 9.0 -67.4 240 21 354.2 354.2 297.5 354.2 0.01 36 143 14616 -69.9 -75.9 41 6.0 -69.9 235 18 354.5 354.5 297.6 354.5 0.01 37 103 16514 -81.5 -87.5 35 6.0 -81.5 244 9 367.1 367.1 300.1 367.2 0.00 38 100 16680 -81.1 -88.1 30 7.0 -81.1 170 2 371.0 371.0 300.8 371.0 0.00 39 92 17146 -83.5 -89.5 34 6.0 -83.5 55 10 375.2 375.2 301.5 375.2 0.00 40 81 17863 -78.7 -87.7 22 9.0 -78.7 85 10 399.0 399.0 305.0 399.0 0.00 41 75 18301 -79.5 -90.5 15 11.0 -79.5 80 20 406.2 406.2 306.0 406.2 0.00 42 71 18617 -73.1 -90.1 6 17.0 -73.2 75 14 426.3 426.3 308.4 426.3 0.00 43 70 18700 -73.1 -91.1 5 18.0 -73.2 75 17 428.0 428.0 308.6 428.0 0.00 44 60 19616 -67.7 -90.7 2 23.0 -67.9 95 17 459.4 459.4 311.7 459.4 0.00 45 59 19717 -68.7 -90.7 3 22.0 -68.9 95 19 459.3 459.3 311.7 459.3 0.00 46 50 20710 -68.3 -91.3 2 23.0 -68.5 125 14 482.5 482.5 313.7 482.5 0.00 47 42 21765 -66.1 -91.1 2 25.0 -66.4 97 27 512.7 512.7 315.8 512.7 0.00 48 39 22222 -60.7 -89.7 1 29.0 -61.4 70 25 537.3 537.3 317.3 537.3 0.00 49 31 23662 -58.3 -88.3 1 30.0 -59.4 95 32 580.2 580.2 319.7 580.3 0.01 50 30 23870 -56.7 -87.7 1 31.0 -58.0 90 31 590.1 590.1 320.2 590.1 0.01 51 22 25871 -50.1 -85.1 1 35.0 -53.3 85 37 664.5 664.5 323.2 664.6 0.01 52 20 26500 -46.7 -82.7 1 36.0 -51.2 75 27 693.2 693.2 324.2 693.4 0.02 53 17 27573 -48.7 -84.7 1 36.0 -53.0 85 32 719.8 719.8 325.1 719.9 0.02 TRP 92 17146 -83.5 -89.5 34 6.0 -83.5 55 10 375.2 375.2 301.5 375.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5799.00 m Freezing level: 527.59 mb = 5522.51 m = 18118.25 ft Wetbulb zero: 674.29 mb = 3517.12 m = 11538.95 ft Precipitable water: 1.48 inches Sfc-500 mean rel hum: 40.24 % Est. max temperature: 30.88 C = 87.58 F Sfc-Lift cond lev (LCL): 918.02 mb = 900.13 m = 2953.15 ft T: 20.75 C 700-500 lapse rate: 4.78 C/km ThetaE index: 20.79 C Layer 829.0- 700.0 mb Conv cond level (CCL): 880.03 mb = 1263.50 m = 4145.28 ft Mean mixing ratio: 15.15 g/kg Conv temperature: 30.48 C = 86.86 F Cap Strength: 4.42 C Lifted Index: 2.40 C Risk: None Lifted Index @300 mb: 0.63 C Lifted Index @700 mb: 1.50 C Showalter Index: 2.75 C Risk: Showers probable Total Totals Index: 37.40 C Risk: None Vertical Totals Index: 18.70 C Cross Totals Index: 18.70 C K Index: 15.90 Risk: < 20 % chance of thunderstorms Sweat Index: 235.40 Risk: None Energy Index: -2.21 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.49 J/kg Max Up Vert Vel: 3.31 m/s Conv Inhibition (B-): 16.79 J/kg Cap Strength: 4.37 C Lift Cond Lev (LCL): 905.80 mb = 1015.30 m = 3331.00 ft Lev Free Conv (LFC): 850.80 mb = 1553.87 m = 5097.94 ft Equ Level (EL): 830.80 mb = 1756.03 m = 5761.20 ft B at Equ Level: 4.85 J/kg Max Parcel Lev (MPL): 820.80 mb = 1859.18 m = 6099.60 ft Wind level data Storm motion: 86 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 1016 18 290 5 4.7 -1.7 | 277 10 10.3 -1.3 1 1000 151 305 4 3.3 -2.3 | 282 9 8.9 -1.9 2 983 305 265 1 1.0 0.1 | 265 7 6.6 0.5 3 949 610 10 2 -0.3 -2.0 | 286 5 5.3 -1.5 4 925 835 60 7 -6.1 -3.5 | 8 3 -0.5 -3.1 5 916 914 60 8 -6.9 -4.0 | 20 4 -1.3 -3.6 6 854 1524 70 18 -16.9 -6.2 | 63 13 -11.3 -5.7 7 850 1562 70 18 -16.9 -6.2 | 63 13 -11.3 -5.7 8 824 1829 75 23 -22.2 -6.0 | 72 18 -16.6 -5.5 9 795 2134 65 20 -18.1 -8.5 | 57 15 -12.5 -8.0 10 766 2438 80 8 -7.9 -1.4 | 67 2 -2.3 -1.0 11 713 3048 60 7 -6.1 -3.5 | 8 3 -0.5 -3.1 12 700 3207 60 7 -6.1 -3.5 | 8 3 -0.5 -3.1 13 615 4267 295 2 1.8 -0.8 | 273 7 7.4 -0.4 14 529 5486 275 5 5.0 -0.4 | 270 11 10.6 -0.0 15 500 5950 315 5 3.5 -3.5 | 289 10 9.1 -3.1 16 491 6096 315 5 3.5 -3.5 | 289 10 9.1 -3.1 17 403 7620 260 8 7.9 1.4 | 262 14 13.5 1.8 18 400 7680 260 8 7.9 1.4 | 262 14 13.5 1.8 19 301 9754 330 14 7.0 -12.1 | 313 17 12.6 -11.7 20 300 9790 330 14 7.0 -12.1 | 313 17 12.6 -11.7 21 253 10973 280 10 9.8 -1.7 | 275 16 15.5 -1.3 22 250 11060 280 10 9.8 -1.7 | 275 16 15.5 -1.3 23 201 12497 260 16 15.8 2.8 | 261 22 21.4 3.2 24 200 12540 260 16 15.8 2.8 | 261 22 21.4 3.2 25 183 13106 250 23 21.6 7.9 | 253 28 27.2 8.3 26 158 14021 235 22 18.0 12.6 | 241 27 23.6 13.1 27 150 14326 240 21 18.2 10.5 | 245 26 23.8 10.9 28 150 14330 240 21 18.2 10.5 | 245 26 23.8 10.9 29 135 14935 230 14 10.7 9.0 | 240 19 16.3 9.4 30 115 15850 280 13 12.8 -2.3 | 276 19 18.4 -1.8 31 104 16459 265 11 11.0 1.0 | 265 17 16.6 1.4 32 100 16680 170 2 -0.3 2.0 | 245 6 5.3 2.4 33 99 16764 170 2 -0.3 2.0 | 245 6 5.3 2.4 34 92 17146 55 10 -8.2 -5.7 | 26 6 -2.6 -5.3 35 88 17374 45 12 -8.5 -8.5 | 20 9 -2.9 -8.1 36 84 17678 50 10 -7.7 -6.4 | 19 6 -2.1 -6.0 37 79 17983 105 10 -9.7 2.6 | 127 5 -4.1 3.0 38 75 18288 80 21 -20.7 -3.6 | 78 15 -15.1 -3.2 39 71 18593 75 13 -12.6 -3.4 | 67 8 -6.9 -2.9 40 70 18700 75 17 -16.4 -4.4 | 70 12 -10.8 -4.0 41 64 19202 45 18 -12.7 -12.7 | 30 14 -7.1 -12.3 42 61 19507 95 15 -14.9 1.3 | 101 9 -9.3 1.7 43 58 19812 95 20 -19.9 1.7 | 99 14 -14.3 2.2 44 55 20117 70 15 -14.1 -5.1 | 61 10 -8.5 -4.7 45 52 20422 95 12 -12.0 1.0 | 103 7 -6.3 1.5 46 50 20710 125 14 -11.5 8.0 | 145 10 -5.9 8.5 47 50 20726 90 12 -12.0 0.0 | 94 6 -6.4 0.4 48 47 21031 130 17 -13.0 10.9 | 147 14 -7.4 11.4 49 41 21946 90 29 -29.0 0.0 | 91 23 -23.4 0.4 50 39 22250 70 25 -23.5 -8.6 | 66 20 -17.9 -8.1 51 37 22555 55 11 -9.0 -6.3 | 30 7 -3.4 -5.9 52 35 22860 95 14 -13.9 1.2 | 101 8 -8.3 1.7 53 30 23774 95 34 -33.9 3.0 | 97 28 -28.3 3.4 54 30 23870 90 31 -31.0 0.0 | 91 25 -25.4 0.4 55 22 25908 85 37 -36.9 -3.2 | 85 31 -31.3 -2.8 56 20 26500 75 27 -26.1 -7.0 | 72 21 -20.5 -6.6 57 20 26518 65 35 -31.7 -14.8 | 61 30 -26.1 -14.4 58 17 27127 85 32 -31.9 -2.8 | 85 26 -26.3 -2.4 59 14 27737 80 34 -33.5 -5.9 | 79 28 -27.9 -5.5 Wind Parameters Mean winds (0-6000m): 55.6 at 7.5 knts Storm direction: 85.6 at 5.6 knts Shear (0-3000m) pos: 1.6 neg: 0.6 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 93.5 deg Storm rel helicity (0-3000m) pos: 35.5 neg: -22.3 tot: 13.1 m^2/s^2 ave: 4.4 10^-3 m/s^2 rel: 0.20 Storm rel vorticity (0-3000m) horiz: 8.5 stream: 1.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.52 Bulk Shear: 10.53 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 ------------------------------------------------------------------------------- 500 300 3 276 8| 4.2 0.0 4.2| 4.6 -4.5 0.1 0.1 0.03| 6.6 0.2 1000 27 4 309 5| 7.0 0.0 7.0| 14.0 -4.5 9.4 9.4 0.53| 8.5 4.5 1500 58 7 9 3| 7.5 0.0 7.5| 22.7 -4.5 18.2 12.1 0.51| 8.6 4.3 2000 66 11 46 6| 5.6 0.8 6.5| 31.2 -15.2 16.0 8.0 0.38| 8.5 3.2 2500 67 12 50 6| 2.0 0.7 2.6| 35.5 -20.8 14.7 5.9 0.26| 9.7 2.5 3000 67 11 49 6| 1.6 0.6 2.2| 35.5 -22.3 13.1 4.4 0.20| 8.5 1.7 4000 64 9 38 5| 1.2 0.9 2.1| 35.5 -34.7 0.7 0.2 0.03| 7.6 0.3 5000 62 8 25 4| 1.0 0.9 1.9| 35.5 -38.6 -3.0 -0.6 0.00| 6.4 0.0 6000 56 8 9 4| 0.9 0.8 1.8| 44.3 -39.5 4.8 0.8 0.05| 5.8 0.3 Wrote GIF file: /home/apache/climate/data/raob//NFFN/skewt/NFFN.skewt.20250425.23.gif