UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122812.upa.cvt Date: 1200Z 28 DEC 25 Searching for SBNT... Searching the city database file for: SBNT ... Date:1200Z 28 DEC 25 Station: SBNT WMO ident: 82599 Latitude: -5.92 Longitude: -35.25 Elevation: 52.00 ------------------------------------------------------------------------------- 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 1008 52 28.6 23.6 74 5.0 24.9 120 10 301.1 304.5 297.8 355.5 18.49 1 1000 111 26.6 22.8 80 3.8 23.8 120 9 299.8 303.0 297.0 351.7 17.74 2 992 182 25.2 22.4 84 2.8 23.2 118 10 299.0 302.2 296.6 349.9 17.45 3 933 718 20.6 20.3 98 0.3 20.4 107 14 299.6 302.6 296.0 347.2 16.28 4 932 728 20.6 20.6 100 0.0 20.6 107 14 299.7 302.8 296.3 348.3 16.61 5 925 793 20.0 19.5 97 0.5 19.6 105 14 299.8 302.6 295.6 345.4 15.61 6 905 983 19.8 16.2 80 3.6 17.4 108 14 301.4 303.8 294.2 339.4 12.90 7 883 1196 17.8 17.8 100 0.0 17.8 101 14 301.5 304.2 295.4 344.7 14.68 8 850 1523 16.4 14.4 88 2.0 15.1 90 13 303.3 305.6 294.2 339.6 12.23 9 849 1533 16.4 14.6 89 1.8 15.2 85 11 303.4 305.7 294.4 340.3 12.40 10 821 1820 18.2 5.2 42 13.0 10.6 87 13 308.3 309.5 291.5 329.0 6.77 11 772 2345 14.8 6.8 59 8.0 10.0 93 14 310.1 311.6 293.0 334.8 8.05 12 727 2852 12.2 0.2 44 12.0 5.7 84 17 312.6 313.6 291.5 329.4 5.34 13 712 3026 10.8 5.8 71 5.0 7.8 90 16 312.9 314.5 293.9 338.2 8.15 14 700 3168 9.6 4.6 71 5.0 6.6 95 16 313.1 314.6 293.5 336.8 7.62 15 635 3969 3.8 1.5 85 2.3 2.5 45 23 315.4 316.7 293.4 336.6 6.73 16 625 4098 3.6 -0.0 77 3.6 1.7 41 23 316.6 317.7 293.3 336.0 6.13 17 613 4256 4.6 -8.4 38 13.0 -1.4 36 22 319.5 320.1 291.8 330.3 3.31 18 608 4323 4.6 -12.4 28 17.0 -2.6 36 20 320.2 320.7 291.2 328.3 2.43 19 586 4623 3.6 -25.4 10 29.0 -5.5 44 9 322.5 322.6 290.4 325.4 0.83 20 584 4650 3.4 -21.6 14 25.0 -5.2 44 9 322.5 322.8 290.7 326.6 1.16 21 540 5280 -2.3 -15.3 36 13.0 -7.3 34 12 323.0 323.5 291.8 330.3 2.15 22 524 5518 -3.5 -30.5 10 27.0 -10.6 34 13 324.4 324.5 290.7 326.5 0.58 23 519 5594 -2.7 -42.7 3 40.0 -10.8 48 13 326.2 326.3 290.8 326.9 0.17 24 500 5890 -3.5 -39.5 4 36.0 -11.3 85 20 328.8 328.8 291.6 329.7 0.25 25 459 6559 -7.1 -41.1 5 34.0 -14.0 109 22 332.4 332.5 292.6 333.3 0.23 26 400 7610 -16.5 -38.5 13 22.0 -20.5 130 8 333.5 333.6 293.0 334.9 0.34 27 376 8071 -20.9 -38.9 18 18.0 -23.8 145 9 333.7 333.7 293.0 335.0 0.35 28 300 9700 -32.3 -57.3 7 25.0 -34.0 175 6 339.9 339.9 294.3 340.1 0.06 29 273 10358 -36.7 -61.7 6 25.0 -38.0 3 0 342.8 342.8 295.0 342.9 0.03 30 267 10511 -37.7 -54.7 15 17.0 -38.8 2 5 343.5 343.5 295.3 343.8 0.09 31 250 10960 -41.7 -52.7 29 11.0 -42.3 20 16 344.1 344.1 295.4 344.5 0.12 32 239 11264 -44.5 -53.5 36 9.0 -45.0 22 17 344.3 344.3 295.4 344.8 0.11 33 210 12122 -49.5 -68.5 9 19.0 -50.0 300 5 349.5 349.5 296.5 349.6 0.02 34 200 12440 -52.1 -70.1 10 18.0 -52.5 225 11 350.3 350.3 296.7 350.3 0.02 35 161 13809 -64.1 -73.1 28 9.0 -64.2 237 33 352.5 352.5 297.2 352.5 0.01 36 150 14240 -66.7 -76.7 23 10.0 -66.8 235 40 355.2 355.2 297.7 355.2 0.01 37 113 15907 -78.1 -85.1 31 7.0 -78.1 91 15 363.9 363.9 299.4 363.9 0.00 38 100 16600 -81.1 -90.1 20 9.0 -81.1 105 33 371.0 371.0 300.8 371.0 0.00 39 97 16770 -81.5 -90.5 20 9.0 -81.5 100 32 373.5 373.5 301.2 373.5 0.00 40 91 17128 -78.9 -89.9 15 11.0 -78.9 100 27 385.5 385.5 303.1 385.6 0.00 41 76 18140 -81.9 -90.9 20 9.0 -81.9 134 21 399.7 399.7 305.2 399.7 0.00 42 70 18600 -80.1 -90.1 17 10.0 -80.1 120 22 413.0 413.0 306.9 413.0 0.00 43 61 19387 -77.3 -90.3 11 13.0 -77.3 132 15 435.8 435.8 309.4 435.8 0.00 44 60 19482 -77.3 -90.3 11 13.0 -77.3 143 15 437.9 437.9 309.7 437.9 0.00 45 56 19884 -73.3 -89.3 7 16.0 -73.4 114 21 455.7 455.7 311.4 455.8 0.00 46 50 20550 -72.9 -90.9 5 18.0 -73.0 95 29 471.7 471.7 312.8 471.7 0.00 47 46 21039 -73.3 -91.3 5 18.0 -73.4 88 30 482.1 482.1 313.6 482.1 0.00 48 43 21437 -69.9 -90.9 3 21.0 -70.1 86 36 499.9 499.9 314.9 499.9 0.00 49 40 21867 -70.5 -91.5 3 21.0 -70.7 84 42 508.8 508.8 315.5 508.8 0.00 50 38 22176 -64.1 -91.1 1 27.0 -64.6 82 47 532.6 532.6 317.1 532.7 0.00 51 34 22858 -63.5 -89.5 2 26.0 -64.0 82 53 551.4 551.4 318.2 551.5 0.00 52 34 22858 -63.9 -89.9 2 26.0 -64.4 82 53 550.4 550.4 318.1 550.4 0.00 TRP 97 16770 -81.5 -90.5 20 9.0 -81.5 100 32 373.5 373.5 301.2 373.5 0.00 WND Sounding variables and indices 1000-500 mb thick: 5779.00 m Freezing level: 557.75 mb = 5025.80 m = 16488.66 ft Wetbulb zero: 618.46 mb = 4183.61 m = 13725.60 ft Precipitable water: 1.73 inches Sfc-500 mean rel hum: 57.34 % Est. max temperature: 30.42 C = 86.75 F Sfc-Lift cond lev (LCL): 937.84 mb = 673.09 m = 2208.28 ft T: 20.99 C 700-500 lapse rate: 4.81 C/km ThetaE index: 11.28 C Layer 821.0- 772.0 mb Conv cond level (CCL): 931.23 mb = 734.77 m = 2410.64 ft Mean mixing ratio: 16.53 g/kg Conv temperature: 27.26 C = 81.07 F Cap Strength: 2.18 C Lifted Index: 0.17 C Risk: Showers probable Lifted Index @300 mb: -2.85 C Lifted Index @700 mb: -0.44 C Showalter Index: 3.45 C Risk: None Total Totals Index: 37.80 C Risk: None Vertical Totals Index: 19.90 C Cross Totals Index: 17.90 C K Index: 29.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 218.80 Risk: None Energy Index: -1.77 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 569.22 J/kg Max Up Vert Vel: 33.74 m/s Conv Inhibition (B-): 1.45 J/kg Cap Strength: 2.03 C Lift Cond Lev (LCL): 932.60 mb = 722.09 m = 2369.04 ft Lev Free Conv (LFC): 927.60 mb = 768.70 m = 2521.95 ft Equ Level (EL): 907.60 mb = 957.91 m = 3142.70 ft B at Equ Level: 6.44 J/kg Max Parcel Lev (MPL): 807.60 mb = 1960.31 m = 6431.39 ft Wind level data Storm motion: 103 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 1008 52 120 10 -8.7 5.0 | 221 3 2.2 2.5 1 1000 111 120 9 -7.8 4.5 | 237 4 3.1 2.0 2 978 305 115 13 -11.8 5.5 | 163 3 -0.9 3.0 3 945 610 110 13 -12.2 4.4 | 145 2 -1.4 2.0 4 925 793 105 14 -13.5 3.6 | 113 3 -2.7 1.1 5 912 914 110 14 -13.2 4.8 | 135 3 -2.3 2.3 6 850 1523 90 13 -13.0 0.0 | 41 3 -2.1 -2.5 7 850 1524 85 11 -11.0 -1.0 | 2 3 -0.1 -3.5 8 791 2134 90 15 -15.0 0.0 | 59 5 -4.1 -2.5 9 763 2438 95 14 -13.9 1.2 | 68 3 -3.1 -1.3 10 736 2743 80 17 -16.7 -3.0 | 47 8 -5.9 -5.4 11 700 3168 95 16 -15.9 1.4 | 78 5 -5.1 -1.1 12 684 3353 65 18 -16.3 -7.6 | 28 11 -5.4 -10.1 13 635 3962 45 23 -16.3 -16.3 | 16 20 -5.4 -18.8 14 611 4267 35 22 -12.6 -18.0 | 5 21 -1.8 -20.5 15 588 4572 45 9 -6.4 -6.4 | 333 10 4.5 -8.9 16 526 5486 30 13 -6.5 -11.3 | 342 14 4.4 -13.8 17 506 5791 85 12 -12.0 -1.0 | 17 4 -1.1 -3.5 18 500 5890 85 20 -19.9 -1.7 | 65 10 -9.1 -4.2 19 487 6096 90 19 -19.0 0.0 | 73 9 -8.1 -2.5 20 450 6706 115 23 -20.8 9.7 | 126 12 -10.0 7.2 21 400 7610 130 8 -6.1 5.1 | 241 5 4.7 2.6 22 399 7620 120 10 -8.7 5.0 | 221 3 2.2 2.5 23 367 8230 155 9 -3.8 8.2 | 231 9 7.1 5.7 24 338 8839 125 12 -9.8 6.9 | 193 5 1.0 4.4 25 324 9144 130 10 -7.7 6.4 | 219 5 3.2 3.9 26 311 9449 180 10 0.0 10.0 | 235 13 10.9 7.5 27 300 9700 175 6 -0.5 6.0 | 251 11 10.3 3.5 28 298 9754 180 10 0.0 10.0 | 235 13 10.9 7.5 29 273 10363 0 0 -0.0 -0.0 | 283 11 10.9 -2.5 30 261 10668 5 10 -0.9 -10.0 | 321 16 10.0 -12.5 31 250 10960 20 16 -5.5 -15.0 | 343 18 5.4 -17.5 32 250 10973 20 15 -5.1 -14.1 | 341 18 5.7 -16.6 33 228 11582 25 20 -8.5 -18.1 | 353 21 2.4 -20.6 34 217 11887 15 13 -3.4 -12.6 | 334 17 7.5 -15.0 35 208 12192 275 3 3.0 -0.3 | 281 14 13.9 -2.8 36 200 12440 225 11 7.8 7.8 | 254 19 18.6 5.3 37 198 12497 255 10 9.7 2.6 | 270 21 20.5 0.1 38 189 12802 220 12 7.7 9.2 | 250 20 18.6 6.7 39 180 13106 240 21 18.2 10.5 | 255 30 29.1 8.0 40 150 14240 235 40 32.8 22.9 | 245 48 43.6 20.5 41 148 14326 240 37 32.0 18.5 | 250 46 42.9 16.0 42 140 14630 230 40 30.6 25.7 | 241 48 41.5 23.2 43 133 14935 210 20 10.0 17.3 | 235 26 20.9 14.8 44 126 15240 125 16 -13.1 9.2 | 161 7 -2.2 6.7 45 120 15545 105 18 -17.4 4.7 | 108 7 -6.5 2.2 46 108 16154 80 12 -11.8 -2.1 | 12 5 -1.0 -4.6 47 100 16600 105 33 -31.9 8.5 | 106 22 -21.0 6.0 48 97 16764 105 33 -31.9 8.5 | 106 22 -21.0 6.0 49 97 16770 100 32 -31.5 5.6 | 98 21 -20.6 3.1 50 87 17374 100 23 -22.7 4.0 | 97 12 -11.8 1.5 51 78 17983 125 19 -15.6 10.9 | 151 10 -4.7 8.4 52 70 18593 160 27 -9.2 25.4 | 184 23 1.6 22.9 53 70 18600 120 22 -19.1 11.0 | 136 12 -8.2 8.5 54 66 18898 115 20 -18.1 8.5 | 129 9 -7.3 6.0 55 63 19202 110 14 -13.2 4.8 | 135 3 -2.3 2.3 56 60 19507 145 15 -8.6 12.3 | 193 10 2.3 9.8 57 57 19812 115 20 -18.1 8.5 | 129 9 -7.3 6.0 58 51 20422 110 24 -22.6 8.2 | 116 13 -11.7 5.7 59 50 20550 95 29 -28.9 2.5 | 90 18 -18.0 0.0 60 48 20726 90 26 -26.0 0.0 | 81 15 -15.1 -2.5 61 35 22250 80 53 -52.2 -9.2 | 74 43 -41.3 -11.7 62 29 23165 90 55 -55.0 0.0 | 87 44 -44.1 -2.5 Wind Parameters Mean winds (0-6000m): 72.9 at 14.9 knts Storm direction: 102.9 at 11.1 knts Shear (0-3000m) pos: 0.9 neg: 1.1 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): -153.8 deg Storm rel helicity (0-3000m) pos: 9.1 neg: -10.8 tot: -1.7 m^2/s^2 ave: -0.6 10^-3 m/s^2 rel: -0.23 Storm rel vorticity (0-3000m) horiz: 4.5 stream: -1.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 42.79 Bulk Shear: 13.30 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 ------------------------------------------------------------------------------- 500 115 12 185 3| 0.0 3.6 3.6| 0.2 -2.8 -2.7 -5.3 -0.84| 4.5 -3.8 1000 111 13 155 2| 0.0 2.5 2.5| 0.6 -4.2 -3.6 -3.6 -0.71| 3.7 -2.6 1500 107 13 129 2| 0.0 2.2 2.2| 0.6 -8.2 -7.6 -5.0 -0.82| 4.4 -3.6 2000 102 13 95 2| 0.9 1.7 2.5| 3.7 -8.2 -4.4 -2.2 -0.46| 4.2 -1.9 2500 100 13 82 2| 0.8 1.3 2.2| 4.8 -8.8 -4.0 -1.6 -0.36| 4.1 -1.5 3000 97 14 72 3| 0.9 1.1 2.0| 9.1 -10.8 -1.7 -0.6 -0.23| 4.5 -1.0 4000 85 15 48 6| 0.7 3.0 3.6| 10.3 -44.2 -33.9 -8.5 -0.35| 5.9 -2.1 5000 76 15 31 7| 1.2 2.6 3.7| 13.3 -84.2 -70.8 -14.2 -0.39| 6.6 -2.6 6000 73 15 26 8| 1.9 2.1 4.0| 40.0 -84.2 -44.2 -7.4 -0.15| 7.3 -1.1 Wrote GIF file: /home/apache/climate/data/raob//SBNT/skewt/SBNT.skewt.20251228.12.gif