UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for SBLO... Searching the city database file for: SBLO ... Date:1200Z 4 DEC 25 Station: SBLO WMO ident: 83768 Latitude: -23.33 Longitude: -51.13 Elevation: 569.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 96 SFC 948 569 21.6 17.4 77 4.2 18.7 110 8 299.3 301.7 293.9 338.1 13.30 2 925 774 18.8 16.4 86 2.4 17.2 95 8 298.5 300.9 293.3 335.7 12.78 3 893 1076 16.0 15.2 95 0.8 15.5 87 16 298.7 300.9 292.9 334.4 12.25 4 850 1496 15.0 14.9 99 0.1 15.0 40 13 301.9 304.2 294.1 339.1 12.64 5 826 1738 13.8 13.8 100 0.0 13.8 33 13 303.1 305.3 294.0 338.9 12.10 6 809 1914 15.8 8.8 63 7.0 11.4 12 11 307.0 308.7 292.7 333.7 8.82 7 783 2191 15.0 -10.0 17 25.0 4.0 321 8 309.0 309.5 287.5 316.3 2.28 8 763 2410 14.4 -27.6 4 42.0 1.2 303 12 310.7 310.8 286.2 312.5 0.52 9 747 2588 13.4 -14.6 13 28.0 2.1 274 12 311.5 311.8 287.7 316.9 1.65 10 700 3131 8.8 -2.2 46 11.0 3.2 240 15 312.2 313.1 290.8 326.9 4.65 11 695 3190 8.4 -1.6 49 10.0 3.2 240 16 312.4 313.4 291.1 327.8 4.90 12 609 4261 -0.5 -9.5 51 9.0 -4.3 270 25 314.2 314.8 290.0 324.1 3.05 13 597 4420 -1.5 -19.5 24 18.0 -7.4 259 22 314.8 315.1 288.5 319.4 1.37 14 593 4473 -0.9 -33.9 6 33.0 -8.8 254 21 316.1 316.2 287.9 317.5 0.37 15 548 5100 -2.7 -38.7 4 36.0 -10.4 211 22 321.2 321.3 289.4 322.1 0.25 16 500 5820 -6.9 -47.9 2 41.0 -13.7 210 22 324.6 324.6 290.3 325.0 0.10 17 400 7530 -16.7 -55.7 2 39.0 -21.2 210 37 333.3 333.3 292.7 333.5 0.05 18 390 7720 -17.5 -56.5 2 39.0 -21.9 217 37 334.7 334.7 293.0 334.9 0.05 19 341 8711 -25.7 -60.7 2 35.0 -28.5 225 39 336.6 336.6 293.5 336.7 0.03 20 300 9630 -31.7 -66.7 2 35.0 -33.6 245 56 340.7 340.7 294.5 340.8 0.02 21 289 9893 -33.5 -67.5 2 34.0 -35.2 246 56 341.8 341.8 294.8 341.9 0.02 22 250 10890 -41.9 -60.9 11 19.0 -42.7 255 59 343.8 343.8 295.3 344.0 0.04 23 245 11027 -42.9 -65.9 6 23.0 -43.7 255 58 344.3 344.3 295.4 344.4 0.02 24 210 12045 -52.1 -64.1 22 12.0 -52.4 246 55 345.4 345.4 295.6 345.6 0.03 25 200 12360 -53.9 -73.9 7 20.0 -54.2 245 64 347.4 347.4 296.1 347.4 0.01 26 189 12722 -55.7 -76.7 6 21.0 -55.9 247 67 350.2 350.2 296.7 350.2 0.01 27 175 13209 -59.1 -77.2 8 18.1 -59.3 250 70 352.3 352.3 297.1 352.4 0.01 28 153 14039 -65.1 -78.1 15 13.0 -65.2 254 69 355.9 355.9 297.9 355.9 0.01 29 150 14160 -65.7 -79.7 13 14.0 -65.8 255 69 356.9 356.9 298.1 356.9 0.00 30 143 14451 -65.1 -82.1 8 17.0 -65.2 258 64 362.9 362.9 299.2 362.9 0.00 31 107 16175 -74.9 -86.9 14 12.0 -74.9 244 45 375.7 375.7 301.5 375.7 0.00 32 101 16512 -73.1 -90.1 6 17.0 -73.2 228 40 385.4 385.4 303.1 385.4 0.00 33 100 16570 -72.3 -89.3 6 17.0 -72.3 225 39 388.0 388.0 303.5 388.0 0.00 34 80 17863 -77.3 -89.3 13 12.0 -77.3 265 9 403.3 403.3 305.6 403.3 0.00 35 76 18156 -77.7 -89.7 13 12.0 -77.7 228 14 408.4 408.4 306.3 408.4 0.00 36 70 18630 -74.5 -89.5 8 15.0 -74.6 140 7 425.0 425.0 308.3 425.0 0.00 37 68 18799 -71.5 -88.5 6 17.0 -71.6 113 8 435.0 435.0 309.4 435.0 0.00 38 61 19436 -72.9 -89.9 6 17.0 -73.0 69 7 445.6 445.6 310.4 445.6 0.00 39 50 20610 -68.7 -90.7 3 22.0 -68.9 40 17 481.6 481.6 313.6 481.6 0.00 40 46 21112 -66.3 -90.3 2 24.0 -66.6 62 14 499.0 499.0 314.9 499.0 0.00 41 41 21809 -66.7 -90.7 2 24.0 -67.0 104 27 514.7 514.7 315.9 514.7 0.00 42 37 22440 -59.5 -88.5 1 29.0 -60.3 79 27 548.5 548.5 318.0 548.5 0.00 43 31 23553 -57.5 -86.5 1 29.0 -58.7 98 25 582.4 582.4 319.8 582.4 0.01 44 30 23760 -57.7 -86.7 1 29.0 -58.9 70 33 587.3 587.3 320.0 587.4 0.01 45 28 24194 -59.3 -87.3 1 28.0 -60.3 86 34 594.6 594.6 320.3 594.6 0.01 46 24 25169 -55.1 -85.1 1 30.0 -57.0 77 27 633.6 633.6 322.0 633.7 0.01 TRP 80 17863 -77.3 -89.3 13 12.0 -77.3 265 9 403.3 403.3 305.6 403.3 0.00 WND 175 13209 -59.1 -77.2 8 18.1 -59.3 250 70 352.3 352.3 297.1 352.4 0.01 Sounding variables and indices 1000-500 mb thick: 5724.00 m Freezing level: 613.83 mb = 4201.09 m = 13782.93 ft Wetbulb zero: 658.30 mb = 3630.04 m = 11909.44 ft Precipitable water: 0.98 inches Sfc-500 mean rel hum: 41.71 % Est. max temperature: 30.04 C = 86.07 F Sfc-Lift cond lev (LCL): 891.27 mb = 1092.32 m = 3583.68 ft T: 15.96 C 700-500 lapse rate: 5.84 C/km ThetaE index: 26.67 C Layer 826.0- 747.0 mb Conv cond level (CCL): 845.88 mb = 1537.11 m = 5042.94 ft Mean mixing ratio: 12.60 g/kg Conv temperature: 24.34 C = 75.81 F Cap Strength: 4.42 C Lifted Index: 1.46 C Risk: Showers probable Lifted Index @300 mb: 4.61 C Lifted Index @700 mb: 2.33 C Showalter Index: 0.23 C Risk: Thunderstorms probable Total Totals Index: 43.70 C Risk: None Vertical Totals Index: 21.90 C Cross Totals Index: 21.80 C K Index: 25.80 Risk: 40-60 % chance of thunderstorms Sweat Index: 226.80 Risk: None Energy Index: -2.69 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 31.35 J/kg Max Up Vert Vel: 7.92 m/s Conv Inhibition (B-): 210.98 J/kg Cap Strength: 4.41 C Lift Cond Lev (LCL): 878.16 mb = 1218.48 m = 3997.60 ft Lev Free Conv (LFC): 633.16 mb = 3945.76 m = 12945.26 ft Equ Level (EL): 573.16 mb = 4743.51 m = 15562.50 ft B at Equ Level: 29.58 J/kg Max Parcel Lev (MPL): 523.16 mb = 5464.34 m = 17927.42 ft Wind level data Storm motion: 264 at 13 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 ---------------------------------------------------------- 0 948 569 110 8 -7.5 2.7 | 94 21 -20.8 1.3 1 925 774 95 8 -8.0 0.7 | 88 21 -21.2 -0.7 2 910 914 105 11 -10.6 2.8 | 93 24 -23.9 1.4 3 878 1219 70 20 -18.8 -6.8 | 76 33 -32.0 -8.3 4 850 1496 40 13 -8.4 -10.0 | 62 24 -21.6 -11.4 5 817 1829 30 13 -6.5 -11.3 | 57 23 -19.8 -12.7 6 788 2134 325 7 4.0 -5.7 | 52 12 -9.2 -7.1 7 760 2438 300 13 11.3 -6.5 | 14 8 -2.0 -7.9 8 733 2743 245 11 10.0 4.6 | 135 5 -3.3 3.2 9 700 3131 240 15 13.0 7.5 | 178 6 -0.3 6.1 10 681 3353 240 17 14.7 8.5 | 192 7 1.5 7.1 11 631 3962 275 22 21.9 -1.9 | 291 9 8.7 -3.3 12 607 4267 270 25 25.0 -0.0 | 277 12 11.7 -1.4 13 585 4572 245 19 17.2 8.0 | 211 8 4.0 6.6 14 542 5182 205 22 9.3 19.9 | 168 19 -4.0 18.5 15 521 5486 195 21 5.4 20.3 | 157 20 -7.8 18.9 16 502 5791 215 21 12.0 17.2 | 176 16 -1.2 15.8 17 500 5820 210 22 11.0 19.1 | 173 18 -2.3 17.6 18 482 6096 210 26 13.0 22.5 | 179 21 -0.3 21.1 19 464 6401 210 26 13.0 22.5 | 179 21 -0.3 21.1 20 445 6706 225 26 18.4 18.4 | 197 18 5.1 17.0 21 411 7315 200 34 11.6 31.9 | 177 31 -1.6 30.5 22 400 7530 210 37 18.5 32.0 | 190 31 5.2 30.6 23 379 7925 225 37 26.2 26.2 | 208 28 12.9 24.8 24 363 8230 225 41 29.0 29.0 | 210 32 15.7 27.6 25 334 8839 225 39 27.6 27.6 | 209 30 14.3 26.2 26 321 9144 240 38 32.9 19.0 | 228 26 19.7 17.6 27 300 9630 245 56 50.8 23.7 | 239 44 37.5 22.3 28 295 9754 245 56 50.8 23.7 | 239 44 37.5 22.3 29 250 10890 255 59 57.0 15.3 | 252 46 43.7 13.9 30 247 10973 255 58 56.0 15.0 | 252 45 42.8 13.6 31 205 12192 245 54 48.9 22.8 | 239 42 35.7 21.4 32 200 12360 245 64 58.0 27.0 | 240 52 44.7 25.6 33 175 13209 250 70 65.8 23.9 | 247 57 52.5 22.5 34 169 13411 250 70 65.8 23.9 | 247 57 52.5 22.5 35 150 14160 255 69 66.6 17.9 | 253 56 53.4 16.4 36 139 14630 260 60 59.1 10.4 | 259 47 45.8 9.0 37 113 15850 230 54 41.4 34.7 | 220 44 28.1 33.3 38 107 16154 245 45 40.8 19.0 | 237 33 27.5 17.6 39 100 16570 225 39 27.6 27.6 | 209 30 14.3 26.2 40 97 16764 225 39 27.6 27.6 | 209 30 14.3 26.2 41 92 17069 225 41 29.0 29.0 | 210 32 15.7 27.6 42 83 17678 200 37 12.7 34.8 | 179 33 -0.6 33.4 43 80 17863 265 9 9.0 0.8 | 82 4 -4.3 -0.6 44 78 17983 265 7 7.0 0.6 | 83 6 -6.3 -0.8 45 74 18288 200 19 6.5 17.9 | 158 18 -6.8 16.4 46 70 18593 150 13 -6.5 11.3 | 116 22 -19.8 9.8 47 70 18630 140 7 -4.5 5.4 | 103 18 -17.8 4.0 48 64 19202 50 11 -8.4 -7.1 | 69 23 -21.7 -8.5 49 57 19812 100 1 -1.0 0.2 | 85 14 -14.2 -1.2 50 52 20422 80 11 -10.8 -1.9 | 82 24 -24.1 -3.3 51 50 20610 40 17 -10.9 -13.0 | 59 28 -24.2 -14.4 52 49 20726 45 18 -12.7 -12.7 | 61 30 -26.0 -14.1 53 47 21031 45 14 -9.9 -9.9 | 64 26 -23.2 -11.3 54 44 21336 100 13 -12.8 2.3 | 92 26 -26.1 0.8 55 42 21641 110 26 -24.4 8.9 | 101 38 -37.7 7.5 56 40 21946 100 28 -27.6 4.9 | 95 41 -40.8 3.5 57 36 22555 75 27 -26.1 -7.0 | 78 40 -39.3 -8.4 58 33 23165 80 24 -23.6 -4.2 | 81 37 -36.9 -5.6 59 31 23470 110 21 -19.7 7.2 | 100 33 -33.0 5.8 60 30 23760 70 33 -31.0 -11.3 | 74 46 -44.3 -12.7 61 30 23774 95 34 -33.9 3.0 | 92 47 -47.1 1.6 62 28 24079 85 34 -33.9 -3.0 | 85 47 -47.1 -4.4 63 26 24384 65 32 -29.0 -13.5 | 71 45 -42.3 -14.9 64 22 24994 90 22 -22.0 0.0 | 88 35 -35.3 -1.4 65 19 25603 90 26 -26.0 0.0 | 88 39 -39.3 -1.4 Wind Parameters Mean winds (0-6000m): 233.9 at 17.8 knts Storm direction: 263.9 at 13.3 knts Shear (0-3000m) pos: 0.9 neg: 3.5 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 133.8 deg Storm rel helicity (0-3000m) pos: 26.2 neg: -172.6 tot: -146.3 m^2/s^2 ave: -48.8 10^-3 m/s^2 rel: -0.15 Storm rel vorticity (0-3000m) horiz: 12.3 stream: -1.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.35 Bulk Shear: 88.48 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 99 10 90 23| 0.0 9.0 9.0| 7.6 -30.9 -23.3 -46.6 -0.31| 11.3 -3.6 1000 75 13 80 26| 0.0 6.7 6.7| 7.6-130.4-122.8 -122.8 -0.57| 14.7 -8.3 1500 60 13 72 26| 0.0 5.1 5.1| 7.6-158.0-150.4 -100.2 -0.51| 14.0 -7.2 2000 43 12 64 24| 0.0 5.1 5.1| 8.8-172.6-163.8 -81.9 -0.47| 14.0 -6.7 2500 28 12 57 23| 0.0 4.2 4.2| 15.5-172.6-157.1 -62.8 -0.27| 13.3 -3.6 3000 328 13 27 14| 0.9 3.5 4.5| 26.2-172.6-146.3 -48.8 -0.15| 12.3 -1.9 4000 277 15 331 4| 1.7 2.5 4.3| 41.4-204.2-162.8 -40.7 -0.17| 12.2 -2.1 5000 249 16 206 5| 1.4 2.6 4.0| 48.5-254.9-206.4 -41.3 -0.24| 11.9 -2.8 6000 234 18 187 9| 1.8 2.2 4.0| 92.6-255.0-162.4 -27.1 -0.15| 11.1 -1.6 Wrote GIF file: /home/apache/climate/data/raob//SBLO/skewt/SBLO.skewt.20251204.12.gif