UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042100.upa.cvt Date: 0000Z 21 APR 25 Searching for SBSN... Searching the city database file for: SBSN ... Date:0000Z 21 APR 25 Station: SBSN WMO ident: 82244 Latitude: -2.42 Longitude: -54.79 Elevation: 60.00 ------------------------------------------------------------------------------- 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 1003 60 28.6 24.8 80 3.8 25.8 100 2 301.5 305.2 298.8 360.6 20.02 1 1000 88 28.6 24.4 78 4.2 25.5 100 2 301.8 305.4 298.6 359.6 19.59 2 925 779 24.0 20.1 79 3.9 21.2 60 12 303.8 306.9 297.1 352.1 16.22 3 850 1515 18.4 18.3 99 0.1 18.4 95 12 305.4 308.4 297.2 352.6 15.76 4 816 1865 16.0 15.6 97 0.4 15.7 113 13 306.5 309.0 296.2 347.9 13.79 5 700 3159 10.2 7.5 83 2.7 8.5 105 14 313.8 315.6 295.0 342.8 9.34 6 526 5488 -2.3 -4.4 85 2.1 -3.4 78 13 325.5 326.5 295.0 342.8 5.26 7 519 5594 -2.5 -7.3 70 4.8 -4.8 81 14 326.5 327.3 294.5 340.7 4.26 8 508 5764 -3.7 -9.7 63 6.0 -6.4 86 16 327.0 327.8 294.1 339.2 3.61 9 500 5890 -4.5 -8.1 76 3.6 -6.2 90 17 327.6 328.4 294.7 341.5 4.16 10 491 6033 -5.3 -8.5 78 3.2 -6.8 93 18 328.3 329.1 294.8 342.1 4.10 11 487 6097 -5.3 -13.3 53 8.0 -8.6 95 18 329.0 329.6 294.0 338.7 2.82 12 467 6424 -7.5 -18.5 41 11.0 -11.4 110 17 330.3 330.7 293.6 336.9 1.90 13 445 6797 -10.7 -17.7 56 7.0 -13.2 106 17 330.8 331.3 293.9 338.3 2.14 14 435 6971 -11.5 -16.4 67 4.9 -13.3 104 16 332.0 332.5 294.4 340.5 2.44 15 432 7024 -11.5 -21.5 43 10.0 -14.7 103 16 332.6 333.0 293.9 338.3 1.59 16 423 7185 -12.7 -14.5 86 1.8 -13.4 101 16 333.1 333.7 295.1 343.3 2.94 17 420 7240 -12.7 -18.7 61 6.0 -14.7 101 16 333.8 334.2 294.6 341.1 2.08 18 400 7610 -14.9 -17.2 83 2.3 -15.7 85 20 335.6 336.1 295.4 344.4 2.48 19 396 7686 -15.3 -16.7 89 1.4 -15.8 83 19 336.1 336.6 295.6 345.3 2.62 20 374 8115 -17.7 -22.3 67 4.6 -19.1 89 20 338.4 338.8 295.4 344.6 1.71 21 365 8297 -18.7 -21.1 81 2.4 -19.4 89 17 339.5 339.9 295.8 346.5 1.95 22 362 8358 -18.7 -23.1 68 4.4 -20.0 93 16 340.3 340.6 295.8 346.3 1.65 23 360 8399 -18.9 -32.9 28 14.0 -21.9 95 16 340.5 340.7 295.1 343.1 0.67 24 354 8524 -19.5 -38.5 17 19.0 -22.9 103 14 341.4 341.4 295.0 342.9 0.39 25 343 8758 -21.3 -33.3 33 12.0 -23.8 110 15 342.0 342.2 295.4 344.6 0.67 26 316 9356 -25.7 -42.7 19 17.0 -28.1 110 15 344.0 344.1 295.6 345.1 0.28 27 304 9635 -28.3 -30.4 82 2.1 -28.7 95 14 344.2 344.4 296.2 348.0 1.00 28 300 9730 -29.1 -35.1 56 6.0 -30.1 90 14 344.4 344.5 295.9 346.9 0.64 29 280 10221 -32.3 -45.3 26 13.0 -33.7 75 12 346.6 346.7 296.1 347.6 0.24 30 272 10425 -34.1 -40.1 55 6.0 -34.8 68 12 346.9 347.0 296.3 348.6 0.43 31 262 10686 -36.5 -41.3 61 4.8 -37.1 61 11 347.1 347.2 296.3 348.7 0.39 32 250 11010 -38.9 -43.9 59 5.0 -39.4 70 16 348.2 348.3 296.5 349.5 0.31 33 235 11431 -42.7 -47.7 58 5.0 -43.0 65 16 348.7 348.7 296.5 349.6 0.22 34 227 11664 -43.7 -56.7 22 13.0 -44.3 63 17 350.6 350.7 296.8 351.0 0.08 35 203 12403 -50.5 -59.5 34 9.0 -50.8 60 16 351.3 351.3 297.0 351.6 0.06 36 200 12500 -51.1 -62.1 26 11.0 -51.4 50 12 351.8 351.9 297.1 352.0 0.04 37 181 13139 -56.5 -71.5 13 15.0 -56.7 41 16 353.2 353.2 297.3 353.3 0.01 38 150 14300 -66.9 -73.9 37 7.0 -67.0 80 4 354.8 354.8 297.7 354.9 0.01 39 149 14340 -67.3 -74.3 36 7.0 -67.4 81 4 354.8 354.8 297.7 354.9 0.01 40 123 15471 -76.3 -81.3 45 5.0 -76.3 101 7 358.4 358.4 298.4 358.5 0.00 41 101 16594 -80.7 -87.7 30 7.0 -80.7 54 7 370.8 370.8 300.7 370.8 0.00 42 100 16650 -80.9 -87.9 30 7.0 -80.9 25 5 371.4 371.4 300.8 371.4 0.00 43 94 16997 -82.3 -89.3 29 7.0 -82.3 120 8 375.3 375.3 301.5 375.3 0.00 44 92 17117 -82.1 -90.1 24 8.0 -82.1 166 9 378.0 378.0 301.9 378.0 0.00 45 90 17241 -77.5 -87.5 19 10.0 -77.5 212 9 389.6 389.6 303.7 389.6 0.00 46 78 18054 -80.7 -88.7 25 8.0 -80.7 284 14 399.2 399.2 305.1 399.2 0.00 47 72 18514 -72.3 -89.3 6 17.0 -72.4 337 5 426.3 426.3 308.4 426.3 0.00 48 70 18680 -72.5 -90.5 5 18.0 -72.6 255 22 429.3 429.3 308.7 429.3 0.00 49 66 19026 -71.3 -89.3 5 18.0 -71.4 262 23 439.2 439.2 309.8 439.2 0.00 50 58 19780 -76.3 -90.3 9 14.0 -76.3 280 38 444.4 444.4 310.3 444.4 0.00 51 53 20302 -73.7 -91.7 5 18.0 -73.8 272 26 462.1 462.1 312.0 462.1 0.00 52 50 20650 -64.9 -89.9 2 25.0 -65.2 285 16 490.5 490.5 314.2 490.6 0.00 53 49 20773 -64.5 -89.5 2 25.0 -64.8 271 12 494.3 494.3 314.5 494.3 0.00 TRP 94 16997 -82.3 -89.3 29 7.0 -82.3 120 8 375.3 375.3 301.5 375.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5802.00 m Freezing level: 558.02 mb = 5059.32 m = 16598.61 ft Wetbulb zero: 575.43 mb = 4755.97 m = 15603.39 ft Precipitable water: 2.45 inches Sfc-500 mean rel hum: 85.39 % Est. max temperature: 32.47 C = 90.45 F Sfc-Lift cond lev (LCL): 949.77 mb = 544.73 m = 1787.16 ft T: 25.56 C 700-500 lapse rate: 5.38 C/km ThetaE index: 9.81 C Layer 816.0- 526.0 mb Conv cond level (CCL): 877.69 mb = 1236.01 m = 4055.12 ft Mean mixing ratio: 17.56 g/kg Conv temperature: 31.95 C = 89.51 F Cap Strength: 1.26 C Lifted Index: -3.35 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.46 C Lifted Index @700 mb: -1.77 C Showalter Index: -2.47 C Risk: Severe thunderstorms possible Total Totals Index: 45.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.90 C Cross Totals Index: 22.80 C K Index: 38.50 Risk: > 80 % chance of thunderstorms Sweat Index: 260.60 Risk: None Energy Index: -2.25 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1221.45 J/kg Max Up Vert Vel: 49.43 m/s Conv Inhibition (B-): 15.01 J/kg Cap Strength: 1.26 C Lift Cond Lev (LCL): 900.68 mb = 1010.88 m = 3316.49 ft Lev Free Conv (LFC): 855.68 mb = 1456.99 m = 4780.10 ft Equ Level (EL): 145.68 mb = 14473.05 m = 47483.19 ft B at Equ Level: 1218.44 J/kg Max Parcel Lev (MPL): 85.68 mb = 17520.35 m = 57480.76 ft Wind level data Storm motion: 121 at 9 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 1003 60 100 2 -2.0 0.3 | 307 7 5.9 -4.4 1 1000 88 100 2 -2.0 0.3 | 307 7 5.9 -4.4 2 976 305 70 12 -11.3 -4.1 | 21 9 -3.4 -8.9 3 943 610 65 11 -10.0 -4.6 | 12 10 -2.1 -9.4 4 925 779 60 12 -10.4 -6.0 | 13 11 -2.5 -10.8 5 911 914 75 12 -11.6 -3.1 | 25 9 -3.7 -7.9 6 879 1219 100 11 -10.8 1.9 | 46 4 -2.9 -2.9 7 850 1515 95 12 -12.0 1.0 | 47 6 -4.1 -3.7 8 849 1524 95 12 -12.0 1.0 | 47 6 -4.1 -3.7 9 819 1829 115 13 -11.8 5.5 | 101 4 -3.9 0.7 10 790 2134 100 15 -14.8 2.6 | 73 7 -6.9 -2.2 11 762 2438 90 14 -14.0 0.0 | 52 8 -6.1 -4.8 12 735 2743 90 16 -16.0 0.0 | 59 9 -8.1 -4.8 13 700 3159 105 14 -13.5 3.6 | 78 6 -5.6 -1.1 14 683 3353 115 14 -12.7 5.9 | 103 5 -4.8 1.1 15 658 3658 95 11 -11.0 1.0 | 39 5 -3.1 -3.8 16 634 3962 105 11 -10.6 2.8 | 55 3 -2.7 -1.9 17 611 4267 95 13 -13.0 1.1 | 54 6 -5.1 -3.6 18 588 4572 85 8 -8.0 -0.7 | 1 5 -0.1 -5.5 19 546 5182 70 10 -9.4 -3.4 | 10 8 -1.5 -8.2 20 500 5890 90 17 -17.0 0.0 | 62 10 -9.1 -4.8 21 487 6096 95 18 -17.9 1.6 | 72 11 -10.0 -3.2 22 468 6401 110 17 -16.0 5.8 | 97 8 -8.1 1.0 23 416 7315 100 16 -15.8 2.8 | 76 8 -7.9 -2.0 24 400 7610 85 20 -19.9 -1.7 | 62 14 -12.0 -6.5 25 399 7620 80 18 -17.7 -3.1 | 51 13 -9.8 -7.9 26 383 7925 95 22 -21.9 1.9 | 78 14 -14.0 -2.9 27 368 8230 85 18 -17.9 -1.6 | 58 12 -10.0 -6.3 28 353 8534 105 14 -13.5 3.6 | 78 6 -5.6 -1.1 29 325 9144 120 16 -13.9 8.0 | 118 7 -6.0 3.2 30 300 9730 90 14 -14.0 0.0 | 52 8 -6.1 -4.8 31 262 10668 60 11 -9.5 -5.5 | 9 10 -1.6 -10.3 32 251 10973 80 15 -14.8 -2.6 | 43 10 -6.9 -7.4 33 250 11010 70 16 -15.0 -5.5 | 35 12 -7.1 -10.2 34 219 11887 60 17 -14.7 -8.5 | 27 15 -6.8 -13.3 35 200 12497 60 16 -13.9 -8.0 | 25 14 -6.0 -12.8 36 200 12500 50 12 -9.2 -7.7 | 6 13 -1.3 -12.5 37 182 13106 40 16 -10.3 -12.3 | 8 17 -2.4 -17.0 38 150 14300 80 4 -3.9 -0.7 | 324 7 4.0 -5.5 39 103 16459 120 10 -8.7 5.0 | 107 1 -0.8 0.2 40 100 16650 25 5 -2.1 -4.5 | 328 11 5.8 -9.3 41 98 16764 105 11 -10.6 2.8 | 55 3 -2.7 -1.9 42 94 16997 120 8 -6.9 4.0 | 308 1 1.0 -0.8 43 88 17374 260 10 9.8 1.7 | 280 18 17.7 -3.0 44 79 17983 275 16 15.9 -1.4 | 285 25 23.8 -6.2 45 71 18593 345 3 0.8 -2.9 | 311 12 8.7 -7.7 46 70 18680 255 22 21.3 5.7 | 268 29 29.1 0.9 47 67 18898 250 22 20.7 7.5 | 264 29 28.6 2.8 48 64 19202 280 25 24.6 -4.3 | 286 34 32.5 -9.1 49 58 19812 280 39 38.4 -6.8 | 284 48 46.3 -11.5 50 52 20422 270 23 23.0 -0.0 | 279 31 30.9 -4.8 51 50 20650 285 16 15.5 -4.1 | 291 25 23.4 -8.9 52 49 20726 270 11 11.0 -0.0 | 284 19 18.9 -4.8 53 46 21031 290 21 19.7 -7.2 | 293 30 27.6 -12.0 Wind Parameters Mean winds (0-6000m): 91.1 at 12.3 knts Storm direction: 121.1 at 9.2 knts Shear (0-3000m) pos: 1.9 neg: 2.1 tot: 4.0 10-3/s Storm rel Dir Shear (0-3000m): 126.4 deg Storm rel helicity (0-3000m) pos: 33.7 neg: -11.3 tot: 22.4 m^2/s^2 ave: 7.5 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 2.3 10^-3/s Energy-Hel index: 0.21 Bulk Rich Number: 370.84 Bulk Shear: 3.29 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 70 9 5 8| 0.0 9.9 9.9| 13.3 -2.3 11.0 22.0 0.63| 12.1 7.6 1000 70 10 13 9| 2.1 4.9 7.1| 21.1 -2.8 18.3 18.3 0.56| 9.5 5.4 1500 79 11 21 7| 2.2 3.3 5.5| 23.3 -2.8 20.5 13.7 0.54| 7.7 4.2 2000 88 11 33 6| 2.3 2.5 4.8| 27.4 -5.2 22.2 11.1 0.48| 7.4 3.6 2500 90 12 40 6| 1.8 2.5 4.3| 28.2 -11.3 16.9 6.8 0.33| 6.8 2.3 3000 90 13 45 7| 1.9 2.1 4.0| 33.7 -11.3 22.4 7.5 0.36| 6.4 2.3 4000 94 13 50 6| 1.5 1.4 2.9| 38.9 -17.4 21.5 5.4 0.25| 6.3 1.6 5000 93 12 45 6| 1.2 1.5 2.7| 40.2 -24.9 15.4 3.1 0.14| 6.0 0.8 6000 91 12 44 6| 1.6 1.3 2.9| 64.1 -24.9 39.2 6.5 0.26| 5.9 1.5 Wrote GIF file: /home/apache/climate/data/raob//SBSN/skewt/SBSN.skewt.20250421.00.gif