UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042023.upa.cvt Date: 2300Z 20 APR 25 Searching for NFFN... Searching the city database file for: NFFN ... Date:2300Z 20 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 1013 18 29.8 22.8 66 7.0 24.7 260 6 301.8 305.1 297.4 353.5 17.51 1 1000 127 28.0 21.0 66 7.0 23.0 250 7 301.1 304.1 296.1 347.7 15.85 2 926 804 22.0 19.9 88 2.1 20.5 184 5 301.7 304.7 296.4 348.9 15.99 3 925 813 21.8 19.6 87 2.2 20.2 185 5 301.6 304.5 296.1 347.9 15.71 4 874 1304 19.4 14.8 75 4.6 16.3 274 7 304.0 306.3 294.4 340.4 12.20 5 864 1404 19.2 11.2 60 8.0 14.1 290 7 304.8 306.6 292.8 333.9 9.71 6 854 1504 18.0 14.9 82 3.1 15.9 307 8 304.6 306.9 294.8 342.1 12.57 7 850 1544 17.8 14.6 82 3.2 15.7 310 8 304.8 307.1 294.7 341.8 12.39 8 824 1810 17.0 10.0 63 7.0 12.6 303 11 306.7 308.4 293.1 335.0 9.40 9 788 2189 14.2 11.3 83 2.9 12.3 294 15 307.6 309.6 294.3 340.1 10.74 10 743 2686 13.2 3.2 51 10.0 7.5 282 19 311.7 313.0 292.2 331.9 6.49 11 739 2731 13.6 1.6 44 12.0 6.9 280 19 312.7 313.8 291.9 330.9 5.82 12 717 2985 11.6 6.6 71 5.0 8.6 296 24 313.2 314.8 294.3 339.8 8.56 13 700 3186 10.2 3.2 62 7.0 6.2 300 25 313.8 315.1 293.2 335.4 6.90 14 692 3281 9.2 3.2 66 6.0 5.8 297 24 313.7 315.0 293.2 335.5 6.98 15 691 3293 9.2 1.2 57 8.0 4.8 297 24 313.8 315.0 292.5 332.8 6.05 16 688 3329 10.2 -17.8 12 28.0 -0.4 295 24 315.3 315.6 288.7 319.9 1.37 17 683 3390 10.6 -33.4 3 44.0 -1.7 294 23 316.4 316.5 288.0 317.6 0.33 18 639 3939 6.4 -33.6 4 40.0 -4.3 276 17 317.8 317.8 288.4 319.0 0.35 19 520 5600 -2.1 -50.1 1 48.0 -10.6 284 14 326.8 326.8 290.9 327.1 0.08 20 500 5910 -4.9 -50.9 1 46.0 -12.5 265 18 327.1 327.1 291.0 327.3 0.07 21 446 6799 -11.7 -28.7 23 17.0 -16.0 243 38 329.4 329.5 292.3 332.3 0.80 22 442 6868 -11.5 -36.5 11 25.0 -16.7 245 39 330.5 330.5 292.2 331.9 0.38 23 429 7097 -12.7 -23.7 39 11.0 -15.9 253 41 331.8 332.0 293.4 336.5 1.32 24 414 7369 -13.9 -36.9 12 23.0 -18.5 262 42 333.6 333.7 293.1 335.1 0.39 25 400 7630 -14.9 -42.9 7 28.0 -19.7 275 36 335.6 335.7 293.4 336.5 0.22 26 376 8095 -17.5 -53.5 3 36.0 -22.0 259 35 338.2 338.2 293.9 338.5 0.07 27 332 9017 -22.5 -56.5 3 34.0 -26.0 239 38 343.6 343.6 295.2 343.8 0.06 28 300 9750 -29.3 -55.3 6 26.0 -31.5 240 41 344.1 344.1 295.4 344.4 0.07 29 289 10014 -31.9 -54.9 8 23.0 -33.7 242 42 344.1 344.1 295.4 344.4 0.08 30 276 10337 -33.9 -56.9 8 23.0 -35.5 245 43 345.7 345.8 295.7 346.0 0.06 31 250 11020 -39.5 -62.5 7 23.0 -40.6 250 45 347.3 347.3 296.1 347.5 0.03 32 213 12090 -48.9 -64.9 14 16.0 -49.4 228 55 349.0 349.0 296.4 349.1 0.03 33 200 12500 -51.9 -69.9 10 18.0 -52.2 220 60 350.6 350.6 296.8 350.6 0.02 34 151 14260 -67.5 -75.5 31 8.0 -67.5 220 50 353.1 353.1 297.3 353.2 0.01 35 150 14300 -67.7 -75.7 31 8.0 -67.8 220 50 353.5 353.5 297.4 353.5 0.01 36 116 15808 -76.6 -82.0 42 5.4 -76.7 220 59 363.9 363.9 299.4 363.9 0.00 37 105 16375 -80.1 -84.5 48 4.4 -80.1 222 51 367.8 367.8 300.2 367.8 0.00 38 104 16429 -80.3 -84.9 46 4.6 -80.3 223 49 368.4 368.4 300.3 368.4 0.00 39 100 16650 -79.5 -85.5 36 6.0 -79.5 225 41 374.1 374.1 301.3 374.1 0.00 40 90 17245 -83.3 -88.1 43 4.8 -83.3 270 12 378.0 378.0 301.9 378.0 0.00 41 78 18049 -81.3 -88.3 30 7.0 -81.3 246 22 397.9 397.9 304.9 398.0 0.00 42 72 18507 -75.9 -86.9 16 11.0 -75.9 177 12 418.6 418.6 307.6 418.6 0.00 43 72 18507 -76.1 -88.1 13 12.0 -76.2 177 12 418.2 418.2 307.5 418.2 0.00 44 70 18670 -75.5 -88.5 11 13.0 -75.6 125 11 422.9 422.9 308.0 422.9 0.00 45 67 18923 -76.1 -89.1 11 13.0 -76.2 154 9 426.9 426.9 308.5 426.9 0.00 46 56 19982 -66.9 -87.9 4 21.0 -67.1 66 12 470.3 470.3 312.7 470.4 0.00 47 50 20670 -65.1 -89.1 2 24.0 -65.4 115 15 490.1 490.1 314.2 490.1 0.00 48 30 23840 -57.1 -86.1 1 29.0 -58.3 80 31 589.0 589.0 320.1 589.0 0.01 49 20 26460 -50.5 -83.5 1 33.0 -53.8 110 29 681.6 681.6 323.8 681.7 0.02 50 18 27149 -49.3 -82.3 1 33.0 -53.2 116 30 706.2 706.2 324.6 706.4 0.03 51 18 27149 -49.7 -82.7 1 33.0 -53.5 116 30 705.0 705.0 324.6 705.2 0.02 52 16 27927 -45.5 -81.5 1 36.0 -51.2 107 35 742.8 742.8 325.7 743.1 0.03 53 14 28818 -45.5 -81.5 1 36.0 -51.7 97 42 771.7 771.8 326.5 772.1 0.04 TRP 90 17245 -83.3 -88.1 43 4.8 -83.3 270 12 378.0 378.0 301.9 378.0 0.00 WND 116 15808 -76.6 -82.0 42 5.4 -76.7 220 59 363.9 363.9 299.4 363.9 0.00 Sounding variables and indices 1000-500 mb thick: 5783.00 m Freezing level: 549.40 mb = 5189.85 m = 17026.85 ft Wetbulb zero: 688.23 mb = 3326.46 m = 10913.46 ft Precipitable water: 1.55 inches Sfc-500 mean rel hum: 40.04 % Est. max temperature: 32.79 C = 91.02 F Sfc-Lift cond lev (LCL): 915.65 mb = 901.02 m = 2956.08 ft T: 21.37 C 700-500 lapse rate: 5.54 C/km ThetaE index: 14.94 C Layer 925.0- 854.0 mb Conv cond level (CCL): 859.55 mb = 1448.02 m = 4750.67 ft Mean mixing ratio: 15.93 g/kg Conv temperature: 32.70 C = 90.86 F Cap Strength: 1.39 C Lifted Index: -1.40 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.08 C Lifted Index @700 mb: 0.04 C Showalter Index: 1.17 C Risk: Showers probable Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 22.70 C Cross Totals Index: 19.50 C K Index: 30.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 209.20 Risk: None Energy Index: -2.65 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 191.42 J/kg Max Up Vert Vel: 19.57 m/s Conv Inhibition (B-): 30.34 J/kg Cap Strength: 1.26 C Lift Cond Lev (LCL): 900.43 mb = 1046.22 m = 3432.45 ft Lev Free Conv (LFC): 795.43 mb = 2109.66 m = 6921.38 ft Equ Level (EL): 765.43 mb = 2434.76 m = 7987.95 ft B at Equ Level: 2.89 J/kg Max Parcel Lev (MPL): 745.43 mb = 2658.27 m = 8721.26 ft Wind level data Storm motion: 309 at 11 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 1013 18 260 6 5.9 1.0 | 163 8 -2.3 7.6 1 1000 127 250 7 6.6 2.4 | 170 9 -1.6 9.0 2 980 305 225 7 4.9 4.9 | 164 12 -3.3 11.5 3 947 610 170 5 -0.9 4.9 | 142 15 -9.1 11.5 4 925 813 185 5 0.4 5.0 | 146 14 -7.8 11.6 5 914 914 210 5 2.5 4.3 | 152 12 -5.7 10.9 6 852 1524 310 8 6.1 -5.1 | 125 3 -2.1 1.5 7 850 1544 310 8 6.1 -5.1 | 125 3 -2.1 1.5 8 793 2134 295 15 13.6 -6.3 | 267 5 5.4 0.3 9 738 2743 280 19 18.7 -3.3 | 253 11 10.5 3.3 10 712 3048 300 25 21.7 -12.5 | 294 15 13.4 -5.9 11 700 3186 300 25 21.7 -12.5 | 294 15 13.4 -5.9 12 612 4267 265 14 13.9 1.2 | 216 10 5.7 7.8 13 568 4877 250 15 14.1 5.1 | 207 13 5.9 11.7 14 527 5486 290 13 12.2 -4.4 | 242 5 4.0 2.2 15 500 5910 265 18 17.9 1.6 | 230 13 9.7 8.2 16 488 6096 265 18 17.9 1.6 | 230 13 9.7 8.2 17 451 6706 240 37 32.0 18.5 | 223 35 23.8 25.1 18 417 7315 260 43 42.3 7.5 | 248 37 34.1 14.1 19 401 7620 275 36 35.9 -3.1 | 263 28 27.6 3.5 20 400 7630 275 36 35.9 -3.1 | 263 28 27.6 3.5 21 384 7925 275 33 32.9 -2.9 | 261 25 24.6 3.7 22 369 8230 245 36 32.6 15.2 | 228 33 24.4 21.8 23 339 8839 250 35 32.9 12.0 | 233 31 24.7 18.6 24 326 9144 230 40 30.6 25.7 | 215 39 22.4 32.3 25 300 9750 240 41 35.5 20.5 | 225 38 27.3 27.1 26 300 9754 240 41 35.5 20.5 | 225 38 27.3 27.1 27 252 10973 250 45 42.3 15.4 | 237 41 34.1 22.0 28 250 11020 250 45 42.3 15.4 | 237 41 34.1 22.0 29 200 12497 220 59 37.9 45.2 | 210 60 29.7 51.8 30 200 12500 220 60 38.6 46.0 | 210 61 30.3 52.6 31 150 14300 220 50 32.1 38.3 | 208 51 23.9 44.9 32 149 14326 220 50 32.1 38.3 | 208 51 23.9 44.9 33 135 14935 255 43 41.5 11.1 | 242 38 33.3 17.7 34 116 15808 220 59 37.9 45.2 | 210 60 29.7 51.8 35 109 16154 220 59 37.9 45.2 | 210 60 29.7 51.8 36 100 16650 225 41 29.0 29.0 | 210 41 20.8 35.6 37 98 16764 225 41 29.0 29.0 | 210 41 20.8 35.6 38 93 17069 220 19 12.2 14.6 | 191 22 4.0 21.2 39 90 17245 270 12 12.0 -0.0 | 210 8 3.8 6.6 40 88 17374 250 11 10.3 3.8 | 192 11 2.1 10.4 41 83 17678 270 20 20.0 -0.0 | 241 13 11.8 6.6 42 79 17983 245 25 22.7 10.6 | 220 22 14.4 17.2 43 75 18288 250 13 12.2 4.4 | 200 12 4.0 11.0 44 70 18670 125 11 -9.0 6.3 | 127 22 -17.2 12.9 45 67 18898 160 10 -3.4 9.4 | 144 20 -11.6 16.0 46 64 19202 100 3 -3.0 0.5 | 122 13 -11.2 7.1 47 61 19507 25 10 -4.2 -9.1 | 79 13 -12.5 -2.5 48 58 19812 90 10 -10.0 0.0 | 110 19 -18.2 6.6 49 55 20117 50 14 -10.7 -9.0 | 83 19 -19.0 -2.4 50 52 20422 50 13 -10.0 -8.4 | 84 18 -18.2 -1.8 51 50 20670 115 15 -13.6 6.3 | 121 25 -21.8 12.9 52 50 20726 120 14 -12.1 7.0 | 124 24 -20.4 13.6 53 47 21031 115 16 -14.5 6.8 | 120 26 -22.7 13.4 54 45 21336 135 17 -12.0 12.0 | 133 28 -20.2 18.6 55 43 21641 130 21 -16.1 13.5 | 130 32 -24.3 20.1 56 39 22250 85 30 -29.9 -2.6 | 96 38 -38.1 4.0 57 33 23165 80 28 -27.6 -4.9 | 93 36 -35.8 1.7 58 32 23470 105 24 -23.2 6.2 | 112 34 -31.4 12.8 59 30 23774 80 30 -29.5 -5.2 | 92 38 -37.8 1.4 60 30 23840 80 31 -30.5 -5.4 | 92 39 -38.8 1.2 61 29 24079 85 29 -28.9 -2.5 | 96 37 -37.1 4.1 62 28 24384 80 31 -30.5 -5.4 | 92 39 -38.8 1.2 63 26 24689 90 23 -23.0 0.0 | 102 32 -31.2 6.6 64 23 25603 70 25 -23.5 -8.6 | 86 32 -31.7 -2.0 65 22 25908 85 23 -22.9 -2.0 | 98 31 -31.1 4.6 66 21 26213 80 21 -20.7 -3.6 | 96 29 -28.9 3.0 67 20 26460 110 29 -27.3 9.9 | 115 39 -35.5 16.5 68 17 27127 120 31 -26.8 15.5 | 122 41 -35.1 22.1 69 15 27432 95 39 -38.9 3.4 | 102 48 -47.1 10.0 70 12 28346 100 46 -45.3 8.0 | 105 55 -53.5 14.6 71 10 28956 90 44 -44.0 0.0 | 97 53 -52.2 6.6 Wind Parameters Mean winds (0-6000m): 278.7 at 14.1 knts Storm direction: 308.7 at 10.5 knts Shear (0-3000m) pos: 3.5 neg: 1.2 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 127.0 deg Storm rel helicity (0-3000m) pos: 45.5 neg: -28.2 tot: 17.3 m^2/s^2 ave: 5.8 10^-3 m/s^2 rel: 0.14 Storm rel vorticity (0-3000m) horiz: 8.2 stream: 1.1 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 12.13 Bulk Shear: 15.78 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 ------------------------------------------------------------------------------- 500 230 7 164 11| 0.0 7.1 7.1| 2.0 -15.8 -13.8 -27.5 -0.42| 9.2 -3.9 1000 213 6 156 13| 2.0 3.6 5.6| 14.5 -21.7 -7.2 -7.2 -0.11| 8.0 -0.9 1500 235 6 162 11| 4.1 2.4 6.5| 18.6 -24.0 -5.4 -3.6 -0.10| 8.8 -0.9 2000 266 7 172 7| 3.1 0.8 3.9| 19.5 -24.0 -4.5 -2.2 0.01| 8.2 0.1 2500 277 9 188 6| 2.5 1.5 4.0| 19.5 -26.2 -6.7 -2.7 -0.02| 7.6 -0.1 3000 281 11 209 5| 3.5 1.2 4.7| 45.5 -28.2 17.3 5.8 0.14| 8.2 1.1 4000 286 14 239 6| 2.6 2.0 4.6| 49.0 -66.2 -17.2 -4.3 -0.07| 7.9 -0.6 5000 280 14 233 7| 2.1 2.0 4.1| 52.6 -79.9 -27.3 -5.5 -0.12| 7.3 -0.9 6000 279 14 232 7| 2.2 2.1 4.4| 60.4 -84.7 -24.3 -4.1 -0.08| 7.3 -0.6 Wrote GIF file: /home/apache/climate/data/raob//NFFN/skewt/NFFN.skewt.20250420.23.gif