UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for KOAK... Searching the city database file for: KOAK ... Date:1200Z 8 DEC 25 Station: KOAK WMO ident: 72493 Latitude: 37.73 Longitude: -122.22 Elevation: 3.00 ------------------------------------------------------------------------------- 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 1026 3 5.8 5.2 96 0.6 5.5 120 5 276.9 277.8 277.4 291.5 5.40 1 1017 77 6.6 4.9 89 1.7 5.8 105 6 278.4 279.3 278.1 293.0 5.34 2 1000 219 5.4 4.6 95 0.8 5.0 75 7 278.5 279.5 278.2 293.1 5.32 3 998 235 5.4 4.6 95 0.8 5.0 73 7 278.7 279.6 278.3 293.3 5.33 4 992 285 5.6 4.4 92 1.2 5.0 67 6 279.4 280.3 278.6 293.9 5.28 5 984 351 7.0 4.5 84 2.5 5.8 59 7 281.4 282.4 279.7 296.3 5.36 6 980 385 7.0 4.1 82 2.9 5.6 55 7 281.8 282.7 279.7 296.3 5.24 7 978 401 8.6 3.9 72 4.7 6.3 54 8 283.5 284.4 280.4 298.0 5.17 8 977 410 8.6 3.7 71 4.9 6.2 53 8 283.6 284.5 280.4 297.9 5.11 9 963 530 11.0 2.0 54 9.0 6.6 39 10 287.2 288.0 281.4 300.3 4.59 10 961 547 12.2 3.2 54 9.0 7.6 37 10 288.6 289.5 282.5 302.9 5.01 11 957 582 13.2 4.2 54 9.0 8.5 33 11 290.0 290.9 283.6 305.4 5.40 12 954 609 15.4 2.4 42 13.0 8.7 30 11 292.5 293.3 283.9 306.3 4.77 13 940 734 15.2 1.2 39 14.0 8.1 13 11 293.5 294.3 284.0 306.5 4.44 14 925 870 15.4 -4.6 25 20.0 6.3 355 10 295.1 295.6 283.0 303.8 2.93 15 917 943 15.0 -7.0 21 22.0 5.5 352 10 295.4 295.8 282.5 302.8 2.46 16 913 980 16.2 -10.8 15 27.0 5.2 354 10 297.0 297.3 282.4 302.6 1.83 17 903 1074 16.6 -11.4 14 28.0 5.2 0 9 298.3 298.7 282.9 303.8 1.77 18 850 1585 13.2 -12.8 15 26.0 3.0 340 9 300.0 300.3 283.5 305.2 1.68 19 828 1805 11.8 -12.2 17 24.0 2.3 344 8 300.8 301.1 284.0 306.4 1.81 20 799 2101 10.0 -19.0 11 29.0 0.1 332 10 301.9 302.1 283.5 305.4 1.06 21 791 2185 9.6 -13.4 18 23.0 0.8 327 10 302.4 302.7 284.5 307.8 1.72 22 776 2343 8.4 -17.6 14 26.0 -0.7 317 11 302.7 303.0 284.1 306.7 1.23 23 724 2911 3.8 -15.2 23 19.0 -3.0 310 13 303.7 304.0 284.9 308.9 1.62 24 716 3001 3.2 -14.8 25 18.0 -3.3 310 14 304.1 304.4 285.1 309.5 1.69 25 708 3092 3.0 -22.0 14 25.0 -4.6 310 14 304.8 305.0 284.5 307.9 0.93 26 705 3126 3.2 -23.8 12 27.0 -4.7 310 15 305.4 305.6 284.6 308.0 0.79 27 701 3172 3.2 -22.8 13 26.0 -4.6 310 15 305.9 306.1 284.9 308.8 0.87 28 700 3184 3.2 -22.8 13 26.0 -4.7 310 15 306.0 306.2 284.9 308.9 0.87 29 683 3382 2.2 -19.8 18 22.0 -4.9 312 13 307.1 307.3 285.7 310.9 1.16 30 670 3537 1.0 -11.0 40 12.0 -3.7 322 14 307.4 307.9 287.2 315.2 2.46 31 643 3866 0.8 -25.2 12 26.0 -6.7 340 13 310.8 311.0 286.5 313.4 0.77 32 625 4093 -0.9 -20.9 20 20.0 -7.2 343 13 311.4 311.6 287.2 315.3 1.16 33 609 4299 -2.5 -30.5 10 28.0 -9.4 340 15 311.9 312.0 286.6 313.6 0.50 34 551 5082 -8.7 -22.7 31 14.0 -12.6 320 31 313.6 313.8 287.9 317.4 1.12 35 548 5124 -8.9 -24.9 26 16.0 -13.1 320 32 313.9 314.0 287.8 317.0 0.92 36 541 5223 -7.9 -34.9 9 27.0 -13.5 319 33 316.2 316.3 287.9 317.5 0.36 37 515 5604 -10.3 -37.3 9 27.0 -15.4 306 26 317.8 317.8 288.3 318.9 0.30 38 500 5830 -12.5 -38.5 9 26.0 -17.0 300 24 317.8 317.9 288.3 318.8 0.27 39 465 6381 -17.1 -41.1 11 24.0 -20.7 314 23 318.7 318.8 288.6 319.6 0.23 40 418 7170 -24.7 -37.7 29 13.0 -26.5 325 29 318.8 318.9 288.8 320.1 0.36 41 412 7275 -25.1 -43.1 17 18.0 -27.2 327 30 319.7 319.7 288.9 320.4 0.21 42 400 7490 -26.9 -43.9 18 17.0 -28.7 330 32 320.0 320.1 289.0 320.8 0.19 43 352 8397 -34.5 -51.5 16 17.0 -35.6 335 31 321.7 321.7 289.4 322.1 0.09 44 321 9033 -40.7 -50.7 33 10.0 -41.2 335 30 321.7 321.7 289.4 322.2 0.11 45 317 9118 -41.1 -55.1 21 14.0 -41.7 335 30 322.3 322.3 289.5 322.6 0.07 46 300 9490 -44.3 -58.3 20 14.0 -44.8 320 26 322.9 322.9 289.7 323.1 0.05 47 299 9512 -44.5 -58.5 20 14.0 -45.0 320 26 322.9 323.0 289.7 323.1 0.05 48 271 10159 -50.1 -59.1 34 9.0 -50.3 333 29 324.0 324.0 290.0 324.2 0.05 49 265 10304 -51.5 -62.5 26 11.0 -51.7 338 30 324.1 324.1 290.0 324.2 0.03 50 262 10378 -51.5 -64.5 20 13.0 -51.8 339 30 325.1 325.1 290.3 325.2 0.02 51 257 10502 -52.1 -63.1 25 11.0 -52.3 327 30 326.0 326.0 290.6 326.1 0.03 52 250 10680 -52.7 -66.7 17 14.0 -52.9 305 35 327.7 327.7 291.1 327.8 0.02 53 244 10836 -53.3 -70.3 11 17.0 -53.5 306 34 329.1 329.1 291.5 329.2 0.01 54 226 11324 -57.5 -71.5 15 14.0 -57.6 309 31 330.0 330.0 291.7 330.0 0.01 55 213 11697 -59.3 -73.3 15 14.0 -59.5 301 40 332.8 332.8 292.5 332.8 0.01 56 200 12090 -59.9 -74.9 12 15.0 -60.0 305 58 337.9 337.9 293.8 337.9 0.01 57 195 12248 -60.7 -75.4 13 14.7 -60.9 310 60 339.0 339.0 294.1 339.1 0.01 58 186 12540 -62.3 -76.3 14 14.0 -62.4 320 52 341.1 341.1 294.6 341.1 0.01 59 150 13870 -61.7 -83.7 4 22.0 -61.9 295 54 363.8 363.8 299.4 363.8 0.00 60 100 16330 -68.9 -87.9 5 19.0 -69.0 285 29 394.6 394.6 304.5 394.6 0.00 61 96 16573 -70.5 -87.5 6 17.0 -70.6 288 30 396.1 396.1 304.7 396.1 0.00 62 94 16699 -68.9 -86.9 6 18.0 -69.0 292 30 401.6 401.7 305.4 401.7 0.00 63 91 16892 -70.5 -87.5 6 17.0 -70.6 297 31 402.2 402.2 305.5 402.2 0.00 64 81 17587 -67.9 -86.9 5 19.0 -68.0 317 35 421.2 421.2 307.9 421.2 0.00 65 76 17969 -69.5 -87.5 6 18.0 -69.6 306 26 425.6 425.6 308.3 425.6 0.00 66 70 18460 -68.7 -87.7 5 19.0 -68.8 295 26 437.4 437.4 309.6 437.4 0.00 67 55 19916 -65.9 -88.9 3 23.0 -66.1 292 11 475.1 475.1 313.1 475.1 0.00 68 50 20500 -62.7 -87.7 2 25.0 -63.1 325 15 495.7 495.7 314.7 495.7 0.00 69 48 20752 -62.1 -87.1 2 25.0 -62.6 330 15 503.0 503.0 315.2 503.0 0.00 70 45 21149 -64.5 -88.5 2 24.0 -64.8 23 17 506.5 506.5 315.4 506.5 0.00 71 40 21873 -62.3 -87.3 2 25.0 -62.9 11 19 529.4 529.4 316.9 529.4 0.00 72 38 22188 -63.7 -88.7 2 25.0 -64.2 40 12 533.7 533.7 317.2 533.7 0.00 73 35 22696 -61.3 -87.3 2 26.0 -62.0 20 13 552.6 552.6 318.2 552.7 0.01 74 31 23447 -62.5 -88.5 2 26.0 -63.1 66 13 568.9 568.9 319.1 568.9 0.00 75 30 23650 -61.1 -87.1 2 26.0 -61.9 70 12 578.1 578.1 319.6 578.1 0.01 76 29 23860 -60.7 -87.7 2 27.0 -61.6 44 14 584.8 584.8 319.9 584.8 0.01 77 24 25038 -59.7 -86.7 2 27.0 -60.9 98 14 620.2 620.2 321.5 620.3 0.01 78 23 25305 -57.7 -85.7 2 28.0 -59.2 85 11 633.7 633.7 322.0 633.8 0.01 79 21 25875 -60.1 -87.1 2 27.0 -61.3 35 19 643.2 643.2 322.4 643.2 0.01 80 20 26180 -59.1 -86.1 2 27.0 -60.5 105 21 655.3 655.3 322.9 655.4 0.01 81 17 27203 -58.3 -86.3 2 28.0 -60.1 76 13 689.0 689.0 324.1 689.1 0.01 82 17 27203 -56.3 -85.3 1 29.0 -58.5 76 13 695.4 695.4 324.3 695.5 0.02 83 15 27999 -56.7 -85.7 1 29.0 -59.0 54 17 719.4 719.4 325.0 719.6 0.02 84 14 28439 -54.3 -84.3 1 30.0 -57.4 69 17 741.9 741.9 325.7 742.1 0.02 85 14 28439 -54.7 -84.7 1 30.0 -57.7 69 17 740.6 740.6 325.7 740.7 0.02 86 13 28917 -52.5 -83.5 1 31.0 -56.3 70 24 764.0 764.1 326.3 764.3 0.03 87 13 28917 -52.3 -83.3 1 31.0 -56.2 70 24 764.7 764.7 326.3 765.0 0.03 88 12 29432 -54.7 -83.7 2 29.0 -58.0 157 7 773.9 774.0 326.6 774.2 0.03 89 10 30610 -51.1 -83.1 1 32.0 -56.1 10 10 828.8 828.8 328.0 829.2 0.04 90 9.1 31221 -50.5 -81.5 1 31.0 -56.1 29 9 853.8 853.8 328.5 854.3 0.06 91 7.7 32298 -53.9 -83.9 1 30.0 -58.7 61 8 881.9 881.9 329.1 882.3 0.05 92 7.0 32910 -52.3 -83.3 1 31.0 -58.0 80 7 912.8 912.9 329.7 913.4 0.05 93 6.5 33387 -54.5 -84.5 1 30.0 -59.6 923.1 923.1 329.9 923.6 0.05 94 6.3 33588 -52.7 -83.7 1 31.0 -58.6 939.1 939.1 330.2 939.7 0.06 95 6.0 33903 -52.9 -83.9 1 31.0 -58.9 951.4 951.4 330.4 952.0 0.06 TRP 186 12540 -62.3 -76.3 14 14.0 -62.4 320 52 341.1 341.1 294.6 341.1 0.01 WND 195 12248 -60.7 -75.4 13 14.7 -60.9 310 60 339.0 339.0 294.1 339.1 0.01 Sounding variables and indices 1000-500 mb thick: 5611.00 m Freezing level: 634.53 mb = 3972.84 m = 13034.09 ft Wetbulb zero: 782.83 mb = 2270.68 m = 7449.63 ft Precipitable water: 0.43 inches Sfc-500 mean rel hum: 24.37 % Est. max temperature: 28.21 C = 82.78 F Sfc-Lift cond lev (LCL): 1016.60 mb = 80.54 m = 264.25 ft T: 6.57 C 700-500 lapse rate: 5.93 C/km ThetaE index: 3.84 C Layer 925.0- 903.0 mb Conv cond level (CCL): 597.79 mb = 4444.10 m = 14580.19 ft Mean mixing ratio: 4.89 g/kg Conv temperature: 41.37 C = 106.47 F Cap Strength: 17.51 C Lifted Index: 17.13 C Risk: None Lifted Index @300 mb: 17.03 C Lifted Index @700 mb: 13.20 C Showalter Index: 12.91 C Risk: None Total Totals Index: 25.40 C Risk: None Vertical Totals Index: 25.70 C Cross Totals Index: -0.30 C K Index: -13.10 Risk: None Sweat Index: 42.00 Risk: None Energy Index: 2.90 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 85.71 J/kg Max Up Vert Vel: 13.09 m/s Conv Inhibition (B-): 74539.85 J/kg Cap Strength: 17.45 C Lift Cond Lev (LCL): 876.83 mb = 1322.44 m = 4338.67 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 356 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 1026 3 120 5 -4.3 2.5 | 160 15 -5.1 14.0 1 1000 219 75 7 -6.8 -1.8 | 142 12 -7.5 9.7 2 990 305 65 6 -5.4 -2.5 | 145 11 -6.2 9.0 3 954 610 30 11 -5.5 -9.5 | 108 7 -6.2 2.0 4 925 870 355 10 0.9 -10.0 | 185 2 0.1 1.5 5 920 914 350 10 1.7 -9.8 | 211 2 1.0 1.7 6 888 1219 10 9 -1.6 -8.9 | 139 4 -2.3 2.6 7 850 1585 340 9 3.1 -8.5 | 217 4 2.3 3.0 8 825 1829 345 8 2.1 -7.7 | 199 4 1.3 3.8 9 795 2134 330 10 5.0 -8.7 | 236 5 4.3 2.8 10 766 2438 310 12 9.2 -7.7 | 246 9 8.4 3.8 11 738 2743 310 12 9.2 -7.7 | 246 9 8.4 3.8 12 700 3184 310 15 11.5 -9.6 | 260 11 10.7 1.9 13 685 3353 310 13 10.0 -8.4 | 251 10 9.2 3.1 14 659 3658 330 14 7.0 -12.1 | 276 6 6.3 -0.6 15 634 3962 345 12 3.1 -11.6 | 272 2 2.4 -0.1 16 610 4267 340 15 5.1 -14.1 | 301 5 4.4 -2.6 17 564 4877 320 29 18.6 -22.2 | 301 21 17.9 -10.7 18 543 5182 320 33 21.2 -25.3 | 304 25 20.5 -13.8 19 502 5791 300 23 19.9 -11.5 | 270 19 19.2 0.0 20 500 5830 300 24 20.8 -12.0 | 271 20 20.0 -0.5 21 482 6096 305 24 19.7 -13.8 | 277 19 18.9 -2.3 22 463 6401 315 23 16.3 -16.3 | 287 16 15.5 -4.8 23 400 7490 330 32 16.0 -27.7 | 317 22 15.3 -16.2 24 393 7620 330 32 16.0 -27.7 | 317 22 15.3 -16.2 25 376 7925 320 27 17.4 -20.7 | 299 19 16.6 -9.2 26 360 8230 335 31 13.1 -28.1 | 323 21 12.4 -16.6 27 315 9144 335 30 12.7 -27.2 | 323 20 11.9 -15.7 28 300 9490 320 26 16.7 -19.9 | 298 18 16.0 -8.4 29 288 9754 320 26 16.7 -19.9 | 298 18 16.0 -8.4 30 262 10363 340 30 10.3 -28.2 | 330 19 9.5 -16.7 31 250 10668 310 31 23.7 -19.9 | 290 24 23.0 -8.4 32 250 10680 305 35 28.7 -20.1 | 287 29 27.9 -8.6 33 227 11278 310 30 23.0 -19.3 | 289 24 22.2 -7.8 34 217 11582 300 35 30.3 -17.5 | 281 30 29.6 -6.0 35 200 12090 305 58 47.5 -33.3 | 295 52 46.8 -21.8 36 195 12248 310 60 46.0 -38.6 | 301 53 45.2 -27.1 37 187 12497 310 60 46.0 -38.6 | 301 53 45.2 -27.1 38 186 12540 320 52 33.4 -39.8 | 311 43 32.7 -28.3 39 178 12802 320 51 32.8 -39.1 | 311 42 32.0 -27.6 40 170 13106 300 41 35.5 -20.5 | 285 36 34.8 -9.0 41 162 13411 290 45 42.3 -15.4 | 275 42 41.5 -3.9 42 150 13870 295 54 48.9 -22.8 | 283 50 48.2 -11.3 43 132 14630 290 59 55.4 -20.2 | 279 55 54.7 -8.7 44 120 15240 295 44 39.9 -18.6 | 280 40 39.1 -7.1 45 108 15850 275 43 42.8 -3.7 | 260 43 42.1 7.8 46 103 16154 300 31 26.8 -15.5 | 279 26 26.1 -4.0 47 100 16330 285 29 28.0 -7.5 | 262 28 27.3 4.0 48 98 16459 285 29 28.0 -7.5 | 262 28 27.3 4.0 49 80 17678 320 35 22.5 -26.8 | 305 27 21.8 -15.3 50 76 17983 305 26 21.3 -14.9 | 279 21 20.6 -3.4 51 72 18288 310 18 13.8 -11.6 | 270 13 13.0 -0.1 52 70 18460 295 26 23.6 -11.0 | 269 23 22.8 0.5 53 68 18593 295 26 23.6 -11.0 | 269 23 22.8 0.5 54 62 19202 320 30 19.3 -23.0 | 302 22 18.5 -11.5 55 59 19507 315 20 14.1 -14.1 | 281 14 13.4 -2.6 56 56 19812 310 10 7.7 -6.4 | 234 9 6.9 5.1 57 53 20117 260 14 13.8 2.4 | 223 19 13.0 13.9 58 51 20422 305 20 16.4 -11.5 | 270 16 15.6 0.0 59 50 20500 325 15 8.6 -12.3 | 276 8 7.9 -0.8 60 48 20726 325 15 8.6 -12.3 | 276 8 7.9 -0.8 61 46 21031 25 18 -7.6 -16.3 | 60 10 -8.4 -4.8 62 44 21336 20 15 -5.1 -14.1 | 66 6 -5.9 -2.6 63 42 21641 350 24 4.2 -23.6 | 344 13 3.4 -12.1 64 38 22250 45 11 -7.8 -7.8 | 114 9 -8.5 3.7 65 36 22555 25 10 -4.2 -9.1 | 116 6 -5.0 2.4 66 34 22860 15 16 -4.1 -15.5 | 51 6 -4.9 -4.0 67 32 23165 60 14 -12.1 -7.0 | 109 14 -12.9 4.5 68 30 23650 70 12 -11.3 -4.1 | 122 14 -12.0 7.4 69 29 23774 40 14 -9.0 -10.7 | 95 10 -9.7 0.8 70 28 24079 55 14 -11.5 -8.0 | 106 13 -12.2 3.5 71 27 24384 35 11 -6.3 -9.0 | 109 7 -7.1 2.5 72 25 24689 60 17 -14.7 -8.5 | 101 16 -15.5 3.0 73 24 24994 100 14 -13.8 2.4 | 134 20 -14.5 13.9 74 23 25298 85 11 -11.0 -1.0 | 132 16 -11.7 10.5 75 22 25603 80 19 -18.7 -3.3 | 113 21 -19.5 8.2 76 21 25908 30 19 -9.5 -16.5 | 64 11 -10.2 -5.0 77 20 26180 105 21 -20.3 5.4 | 129 27 -21.0 16.9 78 20 26213 60 25 -21.7 -12.5 | 87 22 -22.4 -1.0 79 19 26518 110 21 -19.7 7.2 | 132 28 -20.5 18.7 80 18 26822 105 17 -16.4 4.4 | 133 23 -17.2 15.9 81 17 27127 85 12 -12.0 -1.0 | 129 16 -12.7 10.5 82 16 27432 55 14 -11.5 -8.0 | 106 13 -12.2 3.5 83 16 27737 45 17 -12.0 -12.0 | 88 13 -12.8 -0.5 84 14 28651 75 17 -16.4 -4.4 | 112 19 -17.2 7.1 85 13 28956 70 25 -23.5 -8.6 | 97 24 -24.2 2.9 86 12 29261 85 14 -13.9 -1.2 | 125 18 -14.7 10.3 87 12 29566 205 2 0.8 1.8 | 180 13 0.1 13.3 88 10 30610 10 10 -1.7 -9.8 | 124 3 -2.5 1.7 89 7 32910 80 7 -6.9 -1.2 | 143 13 -7.6 10.3 Wind Parameters Mean winds (0-6000m): 326.3 at 15.4 knts Storm direction: 356.3 at 11.5 knts Shear (0-3000m) pos: 0.0 neg: 3.2 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 94.8 deg Storm rel helicity (0-3000m) pos: 14.3 neg: -30.1 tot: -15.8 m^2/s^2 ave: -5.3 10^-3 m/s^2 rel: -0.00 Storm rel vorticity (0-3000m) horiz: 6.6 stream: -0.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.96 Bulk Shear: 43.75 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 7 142 12| 0.0 9.8 9.8| 1.1 -23.9 -22.8 -45.6 -0.67| 11.1 -7.5 1000 34 8 129 7| 0.0 6.8 6.8| 2.8 -28.1 -25.3 -25.3 -0.30| 11.2 -3.3 1500 21 9 131 5| 0.0 4.4 4.4| 5.1 -29.1 -24.0 -16.0 -0.18| 9.4 -1.7 2000 10 9 143 4| 0.0 3.5 3.5| 7.3 -30.1 -22.8 -11.4 -0.12| 8.0 -1.0 2500 357 9 173 2| 0.0 3.5 3.5| 10.4 -30.1 -19.7 -7.9 -0.04| 7.6 -0.3 3000 346 10 217 3| 0.0 3.2 3.2| 14.3 -30.1 -15.8 -5.3 -0.00| 6.6 -0.0 4000 337 11 244 4| 1.0 2.4 3.4| 22.6 -32.8 -10.2 -2.5 0.06| 6.3 0.4 5000 334 13 269 5| 0.8 4.0 4.8| 27.5 -40.1 -12.6 -2.5 0.05| 7.2 0.4 6000 326 15 279 8| 0.7 2.9 3.6| 37.8-111.8 -74.0 -12.3 -0.08| 7.4 -0.6 Wrote GIF file: /home/apache/climate/data/raob//KOAK/skewt/KOAK.skewt.20251208.12.gif