UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041823.upa.cvt Date: 2300Z 18 APR 25 Searching for NFFN... Searching the city database file for: NFFN ... Date:2300Z 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 1011 18 29.8 23.8 70 6.0 25.3 160 4 302.0 305.4 298.1 357.2 18.67 1 1000 107 28.6 22.6 70 6.0 24.2 180 7 301.8 305.0 297.4 353.4 17.52 2 943 625 23.6 21.4 87 2.2 22.1 151 7 301.8 304.9 297.2 352.7 17.26 3 925 794 23.0 17.0 69 6.0 18.9 160 13 302.8 305.3 294.8 342.2 13.29 4 911 927 22.6 15.6 65 7.0 17.9 160 14 303.7 306.0 294.4 340.4 12.33 5 893 1102 24.0 11.0 44 13.0 15.7 166 12 306.9 308.7 293.0 335.0 9.27 6 850 1532 20.6 11.6 56 9.0 14.8 180 6 307.7 309.6 293.9 338.5 10.15 7 703 3142 9.2 8.4 95 0.8 8.7 253 12 312.3 314.2 295.0 342.8 9.90 8 700 3178 9.2 8.2 93 1.0 8.6 260 13 312.7 314.5 295.0 343.0 9.80 9 665 3602 6.8 6.8 100 0.0 6.8 272 15 314.6 316.4 295.2 343.8 9.37 10 500 5900 -4.1 -5.1 93 1.0 -4.6 290 28 328.0 329.1 295.6 345.5 5.24 11 450 6724 -9.3 -9.5 98 0.2 -9.4 292 30 331.5 332.4 295.7 345.6 4.14 12 426 7148 -10.7 -14.3 75 3.6 -12.2 293 32 335.0 335.6 295.6 345.4 2.97 13 400 7630 -13.9 -17.3 75 3.4 -15.2 295 34 336.9 337.4 295.7 345.6 2.46 14 373 8158 -17.5 -21.2 73 3.7 -18.7 296 34 339.0 339.3 295.7 345.8 1.89 15 349 8653 -21.3 -25.8 67 4.5 -22.5 298 33 340.3 340.6 295.6 345.3 1.34 16 306 9609 -29.1 -30.7 86 1.6 -29.4 297 33 342.4 342.6 295.7 346.1 0.97 17 300 9750 -30.1 -31.9 84 1.8 -30.4 295 33 343.0 343.1 295.8 346.3 0.88 18 281 10212 -33.7 -38.5 62 4.8 -34.3 288 32 344.3 344.4 295.8 346.2 0.49 19 271 10464 -35.9 -38.6 76 2.7 -36.2 283 31 344.6 344.8 295.9 346.6 0.50 20 261 10724 -37.5 -43.5 53 6.0 -38.1 277 32 346.0 346.1 296.0 347.3 0.31 21 258 10804 -37.9 -79.9 0 42.0 -39.2 273 33 346.6 346.6 295.8 346.6 0.00 22 254 10911 -38.7 -51.7 24 13.0 -39.6 268 35 347.0 347.0 296.1 347.5 0.13 23 250 11020 -39.5 -55.5 17 16.0 -40.5 265 36 347.3 347.4 296.1 347.7 0.08 24 222 11823 -46.7 -67.7 7 21.0 -47.3 252 42 348.3 348.3 296.3 348.4 0.02 25 200 12510 -51.5 -65.5 17 14.0 -51.8 240 47 351.2 351.2 296.9 351.3 0.03 26 174 13397 -59.3 -70.3 23 11.0 -59.5 230 51 352.6 352.6 297.2 352.7 0.02 27 171 13506 -60.3 -65.3 52 5.0 -60.4 230 51 352.7 352.7 297.3 352.9 0.03 28 164 13765 -62.5 -67.5 51 5.0 -62.6 230 51 353.3 353.3 297.4 353.4 0.03 29 150 14310 -65.9 -76.9 20 11.0 -66.0 230 50 356.6 356.6 298.0 356.6 0.01 30 136 14897 -69.5 -81.5 16 12.0 -69.5 234 42 360.3 360.3 298.8 360.3 0.00 31 100 16660 -83.9 -87.3 55 3.4 -83.9 275 31 365.6 365.6 299.8 365.6 0.00 32 87 17428 -86.3 -90.2 49 3.9 -86.3 250 27 375.7 375.7 301.5 375.7 0.00 33 80 17895 -80.1 -88.1 25 8.0 -80.1 231 21 397.5 397.5 304.9 397.6 0.00 34 74 18334 -81.3 -89.3 25 8.0 -81.3 246 12 404.0 404.0 305.7 404.0 0.00 35 70 18650 -77.3 -90.3 11 13.0 -77.3 240 13 419.0 419.0 307.6 419.0 0.00 36 68 18817 -75.9 -89.9 9 14.0 -75.9 240 13 425.5 425.5 308.3 425.5 0.00 37 56 19949 -71.9 -90.9 4 19.0 -72.0 123 6 458.9 458.9 311.7 458.9 0.00 38 52 20392 -65.9 -90.9 2 25.0 -66.2 78 16 482.7 482.7 313.7 482.8 0.00 39 50 20630 -64.9 -89.9 2 25.0 -65.2 60 10 490.5 490.5 314.2 490.6 0.00 40 48 20881 -62.5 -89.5 1 27.0 -62.9 53 7 502.0 502.0 315.1 502.0 0.00 41 42 21709 -60.9 -88.9 1 28.0 -61.5 43 12 525.5 525.5 316.6 525.5 0.00 42 40 22012 -62.1 -89.1 2 27.0 -62.7 53 9 529.9 529.9 316.9 529.9 0.00 43 30 23810 -58.1 -88.1 1 30.0 -59.2 90 23 586.2 586.3 320.0 586.3 0.01 44 28 24245 -57.5 -87.5 1 30.0 -58.8 86 24 599.6 599.6 320.6 599.6 0.01 45 20 26420 -47.5 -83.5 1 36.0 -51.8 85 27 690.8 690.8 324.1 690.9 0.02 46 19 26759 -46.9 -82.9 1 36.0 -51.5 77 31 702.9 702.9 324.6 703.0 0.02 47 17 27495 -48.1 -83.1 1 35.0 -52.7 84 29 721.7 721.7 325.1 721.9 0.02 48 14 28785 -44.5 -82.5 1 38.0 -51.1 81 41 775.1 775.2 326.6 775.4 0.03 49 13 29280 -45.7 -82.7 1 37.0 -52.1 84 42 787.6 787.6 327.0 787.9 0.03 50 12 29818 -41.5 -81.5 1 40.0 -50.1 88 44 820.7 820.7 327.7 821.1 0.04 TRP 87 17428 -86.3 -90.2 49 3.9 -86.3 250 27 375.7 375.7 301.5 375.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5793.00 m Freezing level: 562.06 mb = 5035.45 m = 16520.32 ft Wetbulb zero: 566.56 mb = 4892.74 m = 16052.11 ft Precipitable water: 2.32 inches Sfc-500 mean rel hum: 83.31 % Est. max temperature: 35.33 C = 95.60 F Sfc-Lift cond lev (LCL): 927.26 mb = 772.69 m = 2535.03 ft T: 23.08 C 700-500 lapse rate: 4.89 C/km ThetaE index: 22.22 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 818.56 mb = 1851.65 m = 6074.89 ft Mean mixing ratio: 16.40 g/kg Conv temperature: 36.48 C = 97.67 F Cap Strength: 4.35 C Lifted Index: -1.37 C Risk: Thunderstorms probable Lifted Index @300 mb: -2.05 C Lifted Index @700 mb: -1.54 C Showalter Index: 3.32 C Risk: None Total Totals Index: 40.40 C Risk: None Vertical Totals Index: 24.70 C Cross Totals Index: 15.70 C K Index: 35.30 Risk: > 80 % chance of thunderstorms Sweat Index: 179.20 Risk: None Energy Index: 1.32 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 535.31 J/kg Max Up Vert Vel: 32.72 m/s Conv Inhibition (B-): 118.05 J/kg Cap Strength: 4.20 C Lift Cond Lev (LCL): 898.79 mb = 1045.22 m = 3429.16 ft Lev Free Conv (LFC): 753.79 mb = 2550.76 m = 8368.55 ft Equ Level (EL): 203.79 mb = 12386.28 m = 40636.89 ft B at Equ Level: 528.47 J/kg Max Parcel Lev (MPL): 113.79 mb = 15919.11 m = 52227.43 ft Wind level data Storm motion: 289 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 18 160 4 -1.4 3.8 | 121 15 -12.6 7.6 1 1000 107 180 7 0.0 7.0 | 134 16 -11.2 10.8 2 978 305 170 6 -1.0 5.9 | 129 16 -12.2 9.7 3 945 610 150 6 -3.0 5.2 | 122 17 -14.2 9.0 4 925 794 160 13 -4.4 12.2 | 136 22 -15.6 16.1 5 912 914 160 14 -4.8 13.2 | 137 23 -16.0 17.0 6 851 1524 180 6 0.0 6.0 | 131 15 -11.2 9.8 7 850 1532 180 6 0.0 6.0 | 131 15 -11.2 9.8 8 792 2134 205 11 4.6 10.0 | 155 15 -6.6 13.8 9 764 2438 255 11 10.6 2.8 | 175 7 -0.6 6.7 10 711 3048 235 10 8.2 5.7 | 163 10 -3.0 9.6 11 700 3178 260 13 12.8 2.3 | 195 6 1.6 6.1 12 685 3353 260 13 12.8 2.3 | 195 6 1.6 6.1 13 660 3658 275 16 15.9 -1.4 | 243 5 4.7 2.4 14 635 3962 265 17 16.9 1.5 | 227 8 5.7 5.3 15 612 4267 280 20 19.7 -3.5 | 268 9 8.5 0.4 16 526 5486 275 31 30.9 -2.7 | 267 20 19.7 1.1 17 500 5900 290 28 26.3 -9.6 | 291 16 15.1 -5.7 18 488 6096 290 28 26.3 -9.6 | 291 16 15.1 -5.7 19 401 7620 295 34 30.8 -14.4 | 298 22 19.6 -10.5 20 400 7630 295 34 30.8 -14.4 | 298 22 19.6 -10.5 21 313 9449 300 33 28.6 -16.5 | 306 22 17.4 -12.7 22 300 9750 295 33 29.9 -13.9 | 298 21 18.7 -10.1 23 263 10668 280 31 30.5 -5.4 | 275 19 19.3 -1.5 24 252 10973 265 36 35.9 3.1 | 254 26 24.7 7.0 25 250 11020 265 36 35.9 3.1 | 254 26 24.7 7.0 26 200 12510 240 47 40.7 23.5 | 227 40 29.5 27.3 27 173 13411 230 51 39.1 32.8 | 217 46 27.9 36.6 28 150 14310 230 50 38.3 32.1 | 217 45 27.1 36.0 29 142 14630 230 50 38.3 32.1 | 217 45 27.1 36.0 30 128 15240 240 31 26.8 15.5 | 219 25 15.6 19.3 31 121 15545 270 25 25.0 -0.0 | 254 14 13.8 3.8 32 115 15850 275 21 20.9 -1.8 | 258 10 9.7 2.0 33 109 16154 295 24 21.8 -10.1 | 301 12 10.6 -6.3 34 104 16459 300 29 25.1 -14.5 | 307 18 13.9 -10.7 35 100 16660 275 31 30.9 -2.7 | 267 20 19.7 1.1 36 93 17069 275 31 30.9 -2.7 | 267 20 19.7 1.1 37 87 17428 250 27 25.4 9.2 | 227 19 14.2 13.1 38 83 17678 245 29 26.3 12.3 | 223 22 15.1 16.1 39 79 17983 225 18 12.7 12.7 | 185 17 1.5 16.6 40 75 18288 235 11 9.0 6.3 | 168 10 -2.2 10.1 41 71 18593 300 16 13.9 -8.0 | 327 5 2.7 -4.2 42 70 18650 240 13 11.3 6.5 | 180 10 0.1 10.3 43 67 18898 240 13 11.3 6.5 | 180 10 0.1 10.3 44 64 19202 195 10 2.6 9.7 | 147 16 -8.6 13.5 45 61 19507 175 10 -0.9 10.0 | 139 18 -12.1 13.8 46 57 19812 125 2 -1.6 1.1 | 111 14 -12.8 5.0 47 55 20117 120 10 -8.7 5.0 | 114 22 -19.9 8.8 48 52 20422 75 16 -15.5 -4.1 | 89 27 -26.7 -0.3 49 50 20630 60 10 -8.7 -5.0 | 87 20 -19.9 -1.2 50 49 20726 45 3 -2.1 -2.1 | 97 13 -13.3 1.7 51 47 21031 60 10 -8.7 -5.0 | 87 20 -19.9 -1.2 52 45 21336 40 15 -9.6 -11.5 | 70 22 -20.8 -7.7 53 40 21946 45 10 -7.1 -7.1 | 80 19 -18.3 -3.2 54 37 22555 110 3 -2.8 1.0 | 109 15 -14.0 4.9 55 35 22860 135 10 -7.1 7.1 | 121 21 -18.3 10.9 56 33 23165 100 14 -13.8 2.4 | 104 26 -25.0 6.3 57 32 23470 100 15 -14.8 2.6 | 104 27 -26.0 6.4 58 30 23774 60 17 -14.7 -8.5 | 80 26 -25.9 -4.7 59 30 23810 90 23 -23.0 0.0 | 96 34 -34.2 3.8 60 29 24079 85 24 -23.9 -2.1 | 93 35 -35.1 1.7 61 25 24994 90 26 -26.0 0.0 | 96 37 -37.2 3.8 62 23 25603 70 21 -19.7 -7.2 | 84 31 -30.9 -3.3 63 21 26213 90 32 -32.0 0.0 | 95 43 -43.2 3.8 64 20 26420 85 27 -26.9 -2.4 | 92 38 -38.1 1.5 65 19 26518 75 31 -29.9 -8.0 | 84 41 -41.1 -4.2 66 15 27432 90 28 -28.0 0.0 | 96 39 -39.2 3.8 67 14 27737 80 41 -40.4 -7.1 | 86 52 -51.6 -3.3 68 10 28956 95 46 -45.8 4.0 | 98 58 -57.0 7.8 69 8 29870 80 51 -50.2 -8.9 | 85 62 -61.4 -5.0 Wind Parameters Mean winds (0-6000m): 258.9 at 15.8 knts Storm direction: 288.9 at 11.8 knts Shear (0-3000m) pos: 2.2 neg: 0.9 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 42.0 deg Storm rel helicity (0-3000m) pos: 76.3 neg: -23.5 tot: 52.8 m^2/s^2 ave: 17.6 10^-3 m/s^2 rel: 0.29 Storm rel vorticity (0-3000m) horiz: 7.2 stream: 2.1 10^-3/s Energy-Hel index: 0.20 Bulk Rich Number: 14.28 Bulk Shear: 37.48 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 ------------------------------------------------------------------------------- 500 170 6 129 16| 0.0 2.1 2.1| 13.2 -10.9 2.3 4.6 0.12| 6.5 0.7 1000 163 8 131 18| 3.5 1.0 4.5| 39.2 -12.5 26.7 26.7 0.32| 8.4 2.7 1500 164 9 132 18| 0.9 0.7 1.6| 39.2 -19.9 19.3 12.9 0.15| 8.0 1.2 2000 171 9 134 18| 1.8 0.5 2.3| 58.8 -19.9 38.9 19.5 0.30| 7.3 2.2 2500 183 9 140 17| 2.7 0.4 3.1| 76.3 -20.1 56.3 22.5 0.35| 8.0 2.8 3000 195 9 145 15| 2.2 0.9 3.1| 76.3 -23.5 52.8 17.6 0.29| 7.2 2.1 4000 222 11 161 12| 2.6 0.5 3.2| 93.5 -25.5 68.0 17.0 0.37| 7.1 2.6 5000 245 13 184 9| 2.7 0.6 3.3|103.7 -25.9 77.8 15.6 0.38| 6.8 2.6 6000 259 16 212 8| 2.2 0.8 3.1|138.6 -27.0 111.5 18.6 0.41| 6.7 2.8 Wrote GIF file: /home/apache/climate/data/raob//NFFN/skewt/NFFN.skewt.20250418.23.gif