UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041811.upa.cvt Date: 1100Z 18 APR 25 Searching for NFFN... Searching the city database file for: NFFN ... Date:1100Z 18 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 1012 18 25.6 25.6 100 0.0 25.6 140 3 297.7 301.5 298.4 358.3 20.84 1 1000 112 26.0 23.7 87 2.3 24.3 95 4 299.1 302.6 297.5 354.0 18.76 2 990 201 26.2 22.7 81 3.5 23.7 130 5 300.2 303.5 297.1 352.5 17.81 3 925 801 22.0 21.2 95 0.8 21.5 180 9 301.8 305.0 297.3 353.1 17.39 4 905 991 20.4 20.3 99 0.1 20.4 182 8 302.1 305.1 297.0 351.7 16.80 5 850 1533 19.0 14.7 76 4.3 16.1 200 8 306.0 308.4 295.1 343.5 12.47 6 821 1831 18.6 8.6 52 10.0 12.4 200 10 308.7 310.3 293.0 334.8 8.57 7 766 2423 14.4 11.3 82 3.1 12.4 209 17 310.3 312.4 295.3 344.1 11.05 8 759 2501 14.8 3.8 48 11.0 8.5 210 17 311.6 312.8 292.3 332.2 6.63 9 748 2624 15.0 1.0 39 14.0 7.2 211 16 313.1 314.1 291.8 330.4 5.50 10 730 2831 14.6 -4.4 27 19.0 5.0 213 15 314.9 315.6 290.9 327.0 3.78 11 700 3184 11.2 3.2 58 8.0 6.6 215 14 314.9 316.2 293.4 336.6 6.90 12 682 3401 9.8 5.6 75 4.2 7.3 226 13 315.7 317.3 294.8 342.0 8.40 13 630 4055 5.2 3.2 87 2.0 4.0 240 13 317.7 319.2 294.8 342.0 7.67 14 614 4265 3.8 2.6 92 1.2 3.1 240 14 318.4 319.9 294.9 342.4 7.54 15 540 5299 -1.3 -1.3 100 0.0 -1.3 262 19 324.2 325.5 295.6 345.3 6.46 16 500 5910 -4.3 -5.1 94 0.8 -4.7 270 18 327.8 328.8 295.6 345.2 5.24 17 432 7051 -10.7 -12.3 88 1.6 -11.3 289 16 333.7 334.4 295.6 345.6 3.45 18 400 7640 -14.3 -15.6 90 1.3 -14.8 270 22 336.4 337.0 295.8 346.4 2.84 19 394 7754 -15.1 -16.1 92 1.0 -15.4 270 22 336.8 337.4 295.8 346.6 2.76 20 316 9386 -25.9 -29.7 70 3.8 -26.7 274 27 343.7 344.0 296.1 347.6 1.03 21 300 9760 -29.1 -32.4 73 3.3 -29.7 280 26 344.4 344.5 296.1 347.6 0.84 22 254 10931 -38.7 -44.7 53 6.0 -39.2 275 33 347.0 347.0 296.2 348.1 0.28 23 250 11040 -39.7 -44.7 59 5.0 -40.2 275 35 347.0 347.1 296.3 348.2 0.29 24 222 11839 -46.9 -50.4 67 3.5 -47.1 271 43 348.0 348.0 296.3 348.7 0.17 25 217 11989 -48.3 -54.3 50 6.0 -48.6 269 45 348.1 348.1 296.3 348.5 0.11 26 206 12329 -51.5 -55.8 60 4.3 -51.7 267 50 348.3 348.3 296.3 348.7 0.10 27 200 12520 -52.5 -59.5 43 7.0 -52.7 265 53 349.6 349.6 296.6 349.9 0.06 28 196 12650 -53.3 -64.3 25 11.0 -53.5 263 54 350.4 350.4 296.7 350.5 0.03 29 181 13157 -57.2 -70.3 18 13.1 -57.4 255 60 352.1 352.1 297.1 352.1 0.02 30 168 13623 -60.9 -75.9 12 15.0 -61.0 253 56 353.5 353.5 297.4 353.5 0.01 31 161 13886 -62.5 -77.5 12 15.0 -62.6 250 50 355.1 355.1 297.7 355.2 0.01 32 150 14320 -64.5 -79.5 11 15.0 -64.6 245 41 359.0 359.0 298.5 359.0 0.00 33 109 16197 -81.1 -86.0 43 4.9 -81.1 268 27 362.0 362.0 299.1 362.0 0.00 34 101 16625 -83.3 -89.3 34 6.0 -83.3 264 28 365.7 365.7 299.8 365.7 0.00 35 100 16680 -82.9 -89.9 29 7.0 -82.9 260 27 367.6 367.6 300.1 367.6 0.00 36 85 17570 -87.9 -91.6 50 3.7 -87.9 260 22 374.9 374.9 301.4 374.9 0.00 37 76 18186 -81.1 -88.1 30 7.0 -81.1 245 13 401.3 401.3 305.4 401.3 0.00 38 70 18650 -78.3 -88.3 18 10.0 -78.3 20 10 416.9 416.9 307.3 416.9 0.00 39 66 18990 -75.3 -88.3 11 13.0 -75.3 38 10 430.5 430.5 308.9 430.5 0.00 40 52 20404 -67.7 -88.7 3 21.0 -67.9 355 9 478.6 478.6 313.3 478.6 0.00 41 50 20640 -68.5 -89.5 3 21.0 -68.7 320 8 482.1 482.1 313.6 482.1 0.00 42 37 22486 -57.5 -86.5 1 29.0 -58.5 67 18 553.7 553.7 318.3 553.7 0.01 43 35 22835 -58.1 -87.1 1 29.0 -59.1 36 10 561.0 561.0 318.7 561.0 0.01 44 30 23810 -54.9 -85.9 1 31.0 -56.5 40 11 595.0 595.0 320.4 595.0 0.01 45 26 24727 -53.7 -85.7 1 32.0 -55.8 91 13 623.2 623.2 321.6 623.3 0.01 46 24 25246 -49.5 -83.5 1 34.0 -52.7 82 19 649.9 649.9 322.7 650.0 0.02 47 20 26440 -49.5 -83.5 1 34.0 -53.1 75 32 684.7 684.7 323.9 684.8 0.02 48 15 28335 -47.1 -83.1 1 36.0 -52.4 76 32 751.4 751.4 326.0 751.6 0.03 TRP 85 17570 -87.9 -91.6 50 3.7 -87.9 260 22 374.9 374.9 301.4 374.9 0.00 WND 181 13157 -57.2 -70.3 18 13.1 -57.4 255 60 352.1 352.1 297.1 352.1 0.02 Sounding variables and indices 1000-500 mb thick: 5798.00 m Freezing level: 558.86 mb = 5035.47 m = 16520.36 ft Wetbulb zero: 562.07 mb = 4976.53 m = 16327.01 ft Precipitable water: 2.35 inches Sfc-500 mean rel hum: 80.09 % Est. max temperature: 33.04 C = 91.48 F Sfc-Lift cond lev (LCL): 1012.50 mb = 18.00 m = 59.05 ft T: 25.60 C 700-500 lapse rate: 5.69 C/km ThetaE index: 18.28 C Layer 905.0- 766.0 mb Conv cond level (CCL): 919.38 mb = 854.02 m = 2801.85 ft Mean mixing ratio: 17.86 g/kg Conv temperature: 29.76 C = 85.57 F Cap Strength: 1.57 C Lifted Index: -2.50 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.46 C Lifted Index @700 mb: -0.25 C Showalter Index: 1.07 C Risk: Showers probable Total Totals Index: 42.30 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 19.00 C K Index: 30.00 Risk: 60-80 % chance of thunderstorms Sweat Index: 210.40 Risk: None Energy Index: 0.29 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 916.18 J/kg Max Up Vert Vel: 42.81 m/s Conv Inhibition (B-): 5.83 J/kg Cap Strength: 1.46 C Lift Cond Lev (LCL): 935.47 mb = 701.59 m = 2301.77 ft Lev Free Conv (LFC): 910.47 mb = 938.58 m = 3079.28 ft Equ Level (EL): 880.47 mb = 1228.50 m = 4030.47 ft B at Equ Level: 11.21 J/kg Max Parcel Lev (MPL): 820.47 mb = 1836.91 m = 6026.55 ft Wind level data Storm motion: 262 at 10 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 1012 18 140 3 -1.9 2.3 | 94 12 -11.7 0.9 1 1000 112 95 4 -4.0 0.3 | 85 14 -13.7 -1.1 2 978 305 170 6 -1.0 5.9 | 113 12 -10.8 4.5 3 945 610 160 10 -3.4 9.4 | 121 15 -13.2 8.0 4 925 801 180 9 0.0 9.0 | 128 12 -9.7 7.6 5 913 914 180 8 0.0 8.0 | 124 12 -9.7 6.6 6 851 1524 200 8 2.7 7.5 | 131 9 -7.0 6.1 7 850 1533 200 8 2.7 7.5 | 131 9 -7.0 6.1 8 792 2134 200 13 4.4 12.2 | 154 12 -5.3 10.8 9 764 2438 210 17 8.5 14.7 | 175 13 -1.2 13.3 10 711 3048 215 14 8.0 11.5 | 170 10 -1.7 10.0 11 700 3184 215 14 8.0 11.5 | 170 10 -1.7 10.0 12 660 3658 240 12 10.4 6.0 | 188 5 0.6 4.6 13 612 4267 240 14 12.1 7.0 | 203 6 2.4 5.6 14 568 4877 275 18 17.9 -1.6 | 290 9 8.2 -3.0 15 527 5486 255 19 18.4 4.9 | 248 9 8.6 3.5 16 507 5791 280 17 16.7 -3.0 | 302 8 7.0 -4.4 17 500 5910 270 18 18.0 -0.0 | 280 8 8.3 -1.4 18 434 7010 290 16 15.0 -5.5 | 323 9 5.3 -6.9 19 401 7620 270 22 22.0 -0.0 | 277 12 12.3 -1.4 20 400 7640 270 22 22.0 -0.0 | 277 12 12.3 -1.4 21 300 9754 275 28 27.9 -2.4 | 282 19 18.1 -3.9 22 300 9760 280 26 25.6 -4.5 | 291 17 15.9 -5.9 23 288 10058 285 26 25.1 -6.7 | 298 17 15.4 -8.2 24 275 10363 275 25 24.9 -2.2 | 283 16 15.2 -3.6 25 250 11040 275 35 34.9 -3.1 | 280 26 25.1 -4.5 26 241 11278 275 35 34.9 -3.1 | 280 26 25.1 -4.5 27 200 12520 265 53 52.8 4.6 | 266 43 43.1 3.2 28 181 13157 255 60 58.0 15.5 | 254 50 48.2 14.1 29 174 13411 255 60 58.0 15.5 | 254 50 48.2 14.1 30 150 14320 245 41 37.2 17.3 | 240 32 27.4 15.9 31 135 14935 235 33 27.0 18.9 | 225 25 17.3 17.5 32 115 15850 260 25 24.6 4.3 | 259 15 14.9 2.9 33 104 16459 275 29 28.9 -2.5 | 282 20 19.1 -4.0 34 100 16680 260 27 26.6 4.7 | 259 17 16.8 3.3 35 98 16764 260 27 26.6 4.7 | 259 17 16.8 3.3 36 88 17374 275 32 31.9 -2.8 | 281 23 22.1 -4.2 37 85 17570 260 22 21.7 3.8 | 259 12 11.9 2.4 38 79 17983 255 21 20.3 5.4 | 249 11 10.5 4.0 39 75 18288 240 10 8.7 5.0 | 163 4 -1.1 3.6 40 71 18593 0 0 -0.0 -0.0 | 82 10 -9.7 -1.4 41 70 18650 20 10 -3.4 -9.4 | 51 17 -13.2 -10.8 42 67 18898 20 10 -3.4 -9.4 | 51 17 -13.2 -10.8 43 64 19202 75 10 -9.7 -2.6 | 78 20 -19.4 -4.0 44 61 19507 45 10 -7.1 -7.1 | 63 19 -16.8 -8.5 45 58 19812 85 12 -12.0 -1.0 | 83 22 -21.7 -2.5 46 50 20640 320 8 5.1 -6.1 | 31 9 -4.6 -7.6 47 47 21031 315 10 7.1 -7.1 | 17 9 -2.7 -8.5 48 45 21336 125 20 -16.4 11.5 | 111 28 -26.1 10.0 49 41 21946 115 16 -14.5 6.8 | 102 25 -24.2 5.3 50 39 22250 90 24 -24.0 0.0 | 88 34 -33.7 -1.4 51 35 22860 35 10 -5.7 -8.2 | 58 18 -15.5 -9.6 52 33 23165 55 11 -9.0 -6.3 | 68 20 -18.8 -7.7 53 32 23470 40 16 -10.3 -12.3 | 56 24 -20.0 -13.7 54 30 23774 65 17 -15.4 -7.2 | 71 27 -25.2 -8.6 55 30 23810 40 11 -7.1 -8.4 | 60 19 -16.8 -9.9 56 29 24079 40 13 -8.4 -10.0 | 58 21 -18.1 -11.4 57 27 24384 85 11 -11.0 -1.0 | 83 21 -20.7 -2.4 58 25 24994 95 14 -13.9 1.2 | 89 24 -23.7 -0.2 59 24 25298 80 20 -19.7 -3.5 | 81 30 -29.4 -4.9 60 23 25603 100 32 -31.5 5.6 | 96 41 -41.3 4.1 61 22 25908 85 29 -28.9 -2.5 | 84 39 -38.6 -4.0 62 20 26440 75 32 -30.9 -8.3 | 77 42 -40.7 -9.7 63 20 26518 95 36 -35.9 3.1 | 92 46 -45.6 1.7 64 15 27432 75 32 -30.9 -8.3 | 77 42 -40.7 -9.7 65 11 28651 85 36 -35.9 -3.1 | 84 46 -45.6 -4.6 Wind Parameters Mean winds (0-6000m): 231.6 at 13.1 knts Storm direction: 261.6 at 9.8 knts Shear (0-3000m) pos: 2.3 neg: 0.0 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 76.4 deg Storm rel helicity (0-3000m) pos: 63.4 neg: -10.4 tot: 53.0 m^2/s^2 ave: 17.7 10^-3 m/s^2 rel: 0.50 Storm rel vorticity (0-3000m) horiz: 5.6 stream: 2.8 10^-3/s Energy-Hel index: 0.26 Bulk Rich Number: 39.18 Bulk Shear: 23.38 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 ------------------------------------------------------------------------------- 500 152 6 106 13| 6.3 0.0 6.3| 26.1 -6.0 20.2 40.3 0.48| 12.5 6.0 1000 165 7 116 13| 3.2 0.0 3.2| 34.0 -8.1 25.9 25.9 0.41| 9.3 3.8 1500 175 8 120 12| 2.4 0.0 2.4| 36.8 -8.1 28.7 19.1 0.41| 7.0 2.9 2000 183 8 126 11| 2.8 0.0 2.8| 46.1 -8.1 38.0 19.0 0.48| 6.3 3.0 2500 190 9 134 11| 3.3 0.0 3.3| 63.4 -8.1 55.2 22.1 0.56| 6.2 3.5 3000 196 10 142 11| 2.3 0.0 2.3| 63.4 -10.4 53.0 17.7 0.50| 5.6 2.8 4000 206 11 151 10| 1.8 0.0 1.8| 69.0 -10.5 58.5 14.6 0.48| 5.1 2.5 5000 220 12 166 8| 2.1 0.0 2.1| 86.1 -12.9 73.2 14.6 0.54| 5.3 2.9 6000 232 13 185 7| 1.8 0.4 2.1|101.8 -28.1 73.6 12.3 0.43| 5.7 2.5 Wrote GIF file: /home/apache/climate/data/raob//NFFN/skewt/NFFN.skewt.20250418.11.gif