UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for KOAK... Searching the city database file for: KOAK ... Date:0000Z 18 APR 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 1015 3 15.6 9.6 67 6.0 12.1 250 4 287.5 288.8 284.7 308.3 7.40 1 1010 44 13.4 8.4 72 5.0 10.6 248 5 285.7 286.9 283.4 304.9 6.85 2 1005 85 13.2 8.2 72 5.0 10.4 247 7 285.9 287.1 283.4 304.9 6.80 3 1000 126 12.6 7.9 73 4.7 10.0 245 8 285.8 286.9 283.2 304.4 6.69 4 961 458 9.4 7.3 87 2.1 8.3 218 5 285.8 286.9 283.2 304.5 6.68 5 925 775 8.0 7.1 94 0.9 7.5 160 6 287.5 288.7 284.1 306.8 6.85 6 924 784 7.8 6.9 94 0.9 7.3 160 6 287.4 288.6 284.0 306.4 6.76 7 919 829 7.6 6.6 93 1.0 7.1 162 6 287.6 288.8 284.0 306.4 6.66 8 893 1065 6.6 4.8 88 1.8 5.6 143 5 289.0 290.0 283.8 306.1 6.04 9 878 1204 5.4 4.6 95 0.8 5.0 122 3 289.1 290.2 283.9 306.3 6.06 10 872 1260 6.4 3.2 80 3.2 4.8 105 4 290.7 291.7 284.0 306.6 5.53 11 857 1403 7.4 1.4 66 6.0 4.4 54 9 293.2 294.1 284.4 307.6 4.94 12 850 1471 8.2 0.2 57 8.0 4.3 30 11 294.7 295.6 284.6 308.2 4.56 13 840 1569 8.8 -1.2 49 10.0 4.0 46 13 296.4 297.1 284.8 308.7 4.17 14 833 1638 8.4 2.4 66 6.0 5.3 47 12 296.7 297.6 286.3 312.7 5.46 15 828 1688 8.2 2.2 66 6.0 5.1 48 11 297.0 297.9 286.4 312.9 5.42 16 816 1808 7.2 2.2 70 5.0 4.6 50 10 297.1 298.1 286.5 313.4 5.50 17 801 1960 7.0 -2.0 53 9.0 2.7 35 13 298.5 299.3 285.6 310.9 4.12 18 797 2001 6.8 -4.2 45 11.0 1.8 31 14 298.7 299.4 285.1 309.3 3.51 19 794 2032 7.0 -9.0 31 16.0 0.5 27 15 299.3 299.7 284.1 306.7 2.43 20 770 2283 5.0 -16.0 20 21.0 -2.2 8 17 299.7 300.0 283.1 304.2 1.42 21 768 2305 5.0 -18.0 17 23.0 -2.6 7 17 300.0 300.2 282.9 303.8 1.21 22 765 2337 5.2 -27.8 7 33.0 -3.6 5 17 300.5 300.6 282.3 302.2 0.51 23 762 2369 5.4 -28.6 6 34.0 -3.6 4 16 301.1 301.2 282.4 302.7 0.47 24 757 2422 5.4 -30.6 5 36.0 -3.7 1 16 301.6 301.7 282.6 303.0 0.39 25 751 2488 6.6 -35.4 3 42.0 -3.3 4 15 303.6 303.7 283.2 304.5 0.25 26 734 2675 5.2 -41.8 2 47.0 -4.5 19 13 304.1 304.1 283.2 304.6 0.13 27 700 3060 2.6 -34.4 5 37.0 -6.0 15 19 305.4 305.4 284.0 306.4 0.30 28 670 3412 0.0 -29.0 9 29.0 -7.3 6 25 306.3 306.4 284.6 308.1 0.52 29 604 4233 -6.1 -46.1 3 40.0 -12.3 351 34 308.5 308.5 284.9 308.8 0.10 30 598 4311 -6.5 -39.5 5 33.0 -12.5 350 35 308.9 308.9 285.2 309.6 0.21 31 563 4779 -10.7 -29.7 19 19.0 -14.8 350 38 309.3 309.4 285.8 311.3 0.58 32 537 5140 -13.7 -23.7 43 10.0 -16.2 346 33 309.9 310.1 286.5 313.5 1.05 33 517 5428 -14.9 -25.9 39 11.0 -17.4 357 39 311.9 312.0 287.1 314.9 0.90 34 501 5665 -16.7 -27.7 38 11.0 -19.0 355 39 312.5 312.6 287.1 315.2 0.78 35 500 5680 -16.9 -27.9 38 11.0 -19.2 355 39 312.4 312.6 287.1 315.1 0.77 36 483 5939 -18.5 -31.5 31 13.0 -20.9 355 39 313.6 313.7 287.3 315.6 0.57 37 472 6110 -19.5 -36.5 21 17.0 -22.1 355 39 314.4 314.5 287.3 315.7 0.36 38 424 6898 -24.3 -46.3 11 22.0 -26.6 15 54 318.1 318.1 288.3 318.6 0.14 39 409 7160 -26.3 -50.3 9 24.0 -28.4 10 59 318.8 318.8 288.5 319.1 0.09 40 400 7320 -27.9 -50.9 9 23.0 -29.8 5 60 318.7 318.7 288.4 319.1 0.09 41 388 7537 -29.7 -54.7 7 25.0 -31.4 9 61 319.2 319.2 288.5 319.4 0.06 42 354 8182 -34.9 -57.9 8 23.0 -36.1 13 69 320.6 320.6 289.0 320.8 0.04 43 349 8281 -35.5 -54.5 13 19.0 -36.6 14 71 321.1 321.1 289.2 321.4 0.07 44 337 8523 -37.7 -55.7 14 18.0 -38.6 15 75 321.4 321.4 289.2 321.6 0.06 45 332 8626 -38.7 -50.7 27 12.0 -39.4 15 75 321.4 321.4 289.3 321.8 0.11 46 309 9112 -43.3 -50.3 46 7.0 -43.6 15 76 321.6 321.6 289.4 322.1 0.12 47 300 9310 -45.3 -49.5 63 4.2 -45.5 15 76 321.5 321.5 289.4 322.0 0.14 48 297 9377 -45.9 -49.7 65 3.8 -46.1 15 77 321.6 321.6 289.4 322.1 0.14 49 292 9490 -46.9 -50.3 68 3.4 -47.0 15 77 321.7 321.8 289.4 322.2 0.13 50 290 9535 -47.1 -53.1 50 6.0 -47.3 15 78 322.1 322.1 289.5 322.4 0.09 51 285 9651 -47.3 -56.3 35 9.0 -47.6 15 79 323.4 323.4 289.9 323.7 0.07 52 282 9721 -47.9 -54.9 44 7.0 -48.1 15 79 323.5 323.5 289.9 323.8 0.08 53 280 9768 -48.3 -56.3 39 8.0 -48.6 15 80 323.6 323.6 289.9 323.9 0.07 54 278 9815 -48.7 -57.7 34 9.0 -49.0 15 80 323.7 323.7 289.9 323.9 0.06 55 275 9886 -48.5 -60.5 24 12.0 -48.8 15 81 325.0 325.0 290.3 325.1 0.04 56 271 9983 -48.9 -61.9 21 13.0 -49.2 15 82 325.8 325.8 290.5 325.9 0.03 57 250 10510 -51.3 -66.3 15 15.0 -51.6 15 86 329.8 329.8 291.7 329.9 0.02 58 245 10641 -52.2 -66.6 16 14.4 -52.5 15 86 330.4 330.4 291.8 330.4 0.02 59 200 11930 -61.3 -69.3 34 8.0 -61.4 5 83 335.7 335.7 293.3 335.8 0.02 60 167 13038 -64.1 -79.1 11 15.0 -64.2 355 58 348.8 348.8 296.4 348.8 0.00 61 150 13700 -60.1 -84.1 3 24.0 -60.3 10 32 366.5 366.5 299.9 366.5 0.00 62 100 16220 -61.5 -86.5 2 25.0 -61.7 300 24 408.9 408.9 306.4 408.9 0.00 63 93 16672 -59.1 -86.1 2 27.0 -59.5 298 22 422.2 422.2 308.0 422.2 0.00 64 85 17233 -60.5 -86.5 2 26.0 -60.8 307 18 430.4 430.4 308.9 430.4 0.00 65 75 18012 -60.1 -87.1 2 27.0 -60.5 305 25 446.9 446.9 310.6 446.9 0.00 66 71 18352 -61.5 -87.5 2 26.0 -61.9 297 12 451.0 451.0 311.0 451.0 0.00 67 70 18440 -61.1 -88.1 2 27.0 -61.4 280 13 453.7 453.7 311.2 453.7 0.00 68 60 19399 -60.3 -88.3 1 28.0 -60.7 245 11 475.9 475.9 313.1 475.9 0.00 69 55 19947 -56.1 -86.1 1 30.0 -56.9 262 14 497.5 497.5 314.8 497.5 0.00 70 50 20550 -57.9 -86.9 1 29.0 -58.6 315 8 507.0 507.0 315.4 507.1 0.00 71 43 21499 -59.5 -87.5 1 28.0 -60.2 271 12 525.4 525.5 316.6 525.5 0.00 72 40 21955 -57.3 -86.3 1 29.0 -58.3 292 10 542.0 542.0 317.6 542.0 0.01 73 38 22278 -58.7 -87.7 1 29.0 -59.6 241 3 546.4 546.4 317.9 546.4 0.00 74 34 22983 -55.3 -86.3 1 31.0 -56.7 306 13 573.0 573.0 319.3 573.0 0.01 75 30 23780 -56.9 -86.9 1 30.0 -58.2 190 8 589.5 589.5 320.1 589.6 0.01 76 24 25200 -53.5 -85.5 1 32.0 -55.7 227 10 638.2 638.3 322.2 638.3 0.01 77 20 26370 -53.3 -84.3 1 31.0 -55.9 170 2 673.0 673.0 323.5 673.1 0.02 78 20 26370 -53.1 -85.1 1 32.0 -55.8 170 2 673.6 673.6 323.6 673.7 0.01 79 19 26701 -53.9 -84.9 1 31.0 -56.5 222 1 681.1 681.1 323.8 681.2 0.02 80 18 27051 -52.1 -84.1 1 32.0 -55.2 184 11 697.4 697.4 324.3 697.5 0.02 81 13 29189 -46.5 -81.5 1 35.0 -52.5 298 16 784.8 784.8 326.8 785.2 0.04 82 13 29189 -46.5 -81.5 1 35.0 -52.5 298 16 784.8 784.8 326.8 785.2 0.04 83 12 29720 -47.7 -81.7 1 34.0 -53.5 37 12 798.7 798.8 327.2 799.1 0.04 84 10 30940 -42.3 -80.3 1 38.0 -51.3 225 7 861.6 861.7 328.7 862.3 0.06 85 10 30940 -42.5 -79.5 1 37.0 -51.4 225 7 860.9 860.9 328.7 861.6 0.07 86 8.0 32458 -39.9 -78.9 1 39.0 -51.3 241 9 928.0 928.0 329.9 929.1 0.10 87 7.3 33084 -40.7 -79.7 1 39.0 -52.1 247 10 949.3 949.4 330.4 950.4 0.10 88 7.0 33370 -40.1 -79.1 1 39.0 -52.0 250 10 963.3 963.3 330.6 964.5 0.11 89 6.5 33877 -38.7 -78.7 1 40.0 -51.8 989.8 989.9 331.0 991.3 0.13 TRP 167 13038 -64.1 -79.1 11 15.0 -64.2 355 58 348.8 348.8 296.4 348.8 0.00 WND 245 10641 -52.2 -66.6 16 14.4 -52.5 15 86 330.4 330.4 291.8 330.4 0.02 Sounding variables and indices 1000-500 mb thick: 5554.00 m Freezing level: 670.00 mb = 3412.26 m = 11194.94 ft Wetbulb zero: 789.65 mb = 2077.19 m = 6814.84 ft Precipitable water: 0.61 inches Sfc-500 mean rel hum: 36.74 % Est. max temperature: 19.97 C = 67.94 F Sfc-Lift cond lev (LCL): 927.75 mb = 750.42 m = 2461.97 ft T: 8.11 C 700-500 lapse rate: 7.44 C/km ThetaE index: 11.15 C Layer 801.0- 762.0 mb Conv cond level (CCL): 889.25 mb = 1099.72 m = 3607.96 ft Mean mixing ratio: 6.75 g/kg Conv temperature: 17.08 C = 62.74 F Cap Strength: 9.57 C Lifted Index: 8.51 C Risk: None Lifted Index @300 mb: 11.69 C Lifted Index @700 mb: 9.14 C Showalter Index: 6.58 C Risk: None Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 25.10 C Cross Totals Index: 17.10 C K Index: -11.70 Risk: None Sweat Index: 63.40 Risk: None Energy Index: 1.52 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.73 J/kg Max Up Vert Vel: 3.93 m/s Conv Inhibition (B-): 55178.99 J/kg Cap Strength: 9.51 C Lift Cond Lev (LCL): 925.22 mb = 773.03 m = 2536.15 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 29 at 17 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 1015 3 250 4 3.8 1.4 | 216 20 11.7 15.9 1 1000 126 245 8 7.3 3.4 | 220 23 15.2 17.9 2 979 305 245 7 6.3 3.0 | 219 23 14.3 17.5 3 944 610 190 3 0.5 3.0 | 206 19 8.4 17.5 4 925 775 160 6 -2.1 5.6 | 196 21 5.9 20.1 5 909 914 165 7 -1.8 6.8 | 196 22 6.1 21.3 6 876 1219 120 3 -2.6 1.5 | 198 17 5.3 16.0 7 850 1471 30 11 -5.5 -9.5 | 206 6 2.4 5.0 8 845 1524 45 13 -9.2 -9.2 | 167 5 -1.3 5.3 9 814 1829 50 10 -7.7 -6.4 | 182 8 0.3 8.1 10 784 2134 15 18 -4.7 -17.4 | 311 4 3.3 -2.9 11 755 2438 360 16 -0.0 -16.0 | 281 8 7.9 -1.5 12 728 2743 25 12 -5.1 -10.9 | 218 5 2.9 3.6 13 701 3048 15 18 -4.7 -17.4 | 311 4 3.3 -2.9 14 700 3060 15 19 -4.9 -18.4 | 322 5 3.0 -3.9 15 648 3658 360 29 -0.0 -29.0 | 331 17 7.9 -14.5 16 599 4267 350 35 6.1 -34.5 | 325 24 14.0 -20.0 17 554 4877 350 39 6.8 -38.4 | 328 28 14.7 -23.9 18 533 5182 345 32 8.3 -30.9 | 315 23 16.2 -16.4 19 513 5486 360 41 -0.0 -41.0 | 343 28 7.9 -26.5 20 500 5680 355 39 3.4 -38.9 | 335 27 11.3 -24.4 21 472 6096 355 39 3.4 -38.9 | 335 27 11.3 -24.4 22 453 6401 5 38 -3.3 -37.9 | 349 24 4.6 -23.4 23 435 6706 15 49 -12.7 -47.3 | 8 33 -4.8 -32.8 24 417 7010 15 58 -15.0 -56.0 | 10 42 -7.1 -41.5 25 400 7320 5 60 -5.2 -59.8 | 357 45 2.7 -45.3 26 383 7620 10 61 -10.6 -60.1 | 3 46 -2.7 -45.6 27 336 8534 15 75 -19.4 -72.4 | 11 59 -11.5 -57.9 28 307 9144 15 76 -19.7 -73.4 | 11 60 -11.7 -58.9 29 300 9310 15 76 -19.7 -73.4 | 11 60 -11.7 -58.9 30 250 10510 15 86 -22.3 -83.1 | 12 70 -14.3 -68.6 31 245 10641 15 86 -22.3 -83.1 | 12 70 -14.3 -68.6 32 244 10668 15 86 -22.3 -83.1 | 12 70 -14.3 -68.6 33 200 11930 5 83 -7.2 -82.7 | 359 68 0.7 -68.2 34 182 12497 15 84 -21.7 -81.1 | 12 68 -13.8 -66.6 35 167 13038 355 58 5.1 -57.8 | 343 45 13.0 -43.3 36 157 13411 350 53 9.2 -52.2 | 336 41 17.1 -37.7 37 150 13700 10 32 -5.6 -31.5 | 352 17 2.4 -17.0 38 150 13716 15 30 -7.8 -29.0 | 359 14 0.2 -14.5 39 142 14021 360 38 -0.0 -38.0 | 341 25 7.9 -23.5 40 129 14630 355 21 1.8 -20.9 | 303 12 9.8 -6.4 41 123 14935 315 35 24.7 -24.7 | 287 34 32.7 -10.3 42 117 15240 335 34 14.4 -30.8 | 306 28 22.3 -16.3 43 106 15850 325 43 24.7 -35.2 | 302 39 32.6 -20.7 44 101 16154 310 16 12.3 -10.3 | 258 21 20.2 4.2 45 100 16220 300 24 20.8 -12.0 | 265 29 28.7 2.5 46 96 16459 305 27 22.1 -15.5 | 272 30 30.0 -1.0 47 92 16764 295 20 18.1 -8.5 | 257 27 26.1 6.0 48 83 17374 310 17 13.0 -10.9 | 260 21 20.9 3.6 49 75 17983 305 26 21.3 -14.9 | 271 29 29.2 -0.4 50 72 18288 310 12 9.2 -7.7 | 248 18 17.1 6.8 51 70 18440 280 13 12.8 -2.3 | 239 24 20.7 12.2 52 68 18593 260 10 9.8 1.7 | 228 24 17.8 16.2 53 65 18898 310 12 9.2 -7.7 | 248 18 17.1 6.8 54 62 19202 245 10 9.1 4.2 | 222 25 17.0 18.7 55 59 19507 245 11 10.0 4.6 | 223 26 17.9 19.1 56 56 19812 260 16 15.8 2.8 | 234 29 23.7 17.3 57 54 20117 265 11 11.0 1.0 | 231 24 18.9 15.5 58 51 20422 220 13 8.4 10.0 | 214 29 16.3 24.5 59 50 20550 315 8 5.7 -5.7 | 237 16 13.6 8.8 60 49 20726 285 11 10.6 -2.8 | 238 22 18.6 11.6 61 46 21031 295 5 4.5 -2.1 | 225 18 12.5 12.4 62 44 21336 260 8 7.9 1.4 | 225 22 15.8 15.9 63 42 21641 280 15 14.8 -2.6 | 242 26 22.7 11.9 64 40 21946 295 10 9.1 -4.2 | 239 20 17.0 10.3 65 38 22250 240 1 0.9 0.5 | 210 17 8.8 15.0 66 36 22555 250 15 14.1 5.1 | 228 29 22.0 19.6 67 35 22860 260 14 13.8 2.4 | 232 28 21.7 16.9 68 33 23165 10 12 -2.1 -11.8 | 245 6 5.8 2.7 69 32 23470 55 10 -8.2 -5.7 | 178 9 -0.3 8.8 70 30 23774 85 10 -10.0 -0.9 | 172 14 -2.0 13.6 71 30 23780 190 8 1.4 7.9 | 203 24 9.3 22.4 72 27 24384 305 3 2.5 -1.7 | 219 16 10.4 12.8 73 26 24689 60 3 -2.6 -1.5 | 202 14 5.3 13.0 74 25 24994 180 10 0.0 10.0 | 198 26 7.9 24.5 75 23 25603 315 10 7.1 -7.1 | 244 17 15.0 7.4 76 22 25908 15 14 -3.6 -13.5 | 257 4 4.3 1.0 77 20 26370 170 2 -0.3 2.0 | 205 18 7.6 16.5 78 19 26822 240 1 0.9 0.5 | 210 17 8.8 15.0 79 18 27127 170 13 -2.3 12.8 | 192 28 5.7 27.3 80 17 27432 225 4 2.8 2.8 | 212 20 10.8 17.3 81 16 27737 185 10 0.9 10.0 | 200 26 8.8 24.5 82 16 28042 245 14 12.7 5.9 | 225 29 20.6 20.4 83 15 28346 315 11 7.8 -7.8 | 247 17 15.7 6.7 84 14 28956 260 16 15.8 2.8 | 234 29 23.7 17.3 85 13 29261 305 16 13.1 -9.2 | 256 22 21.0 5.3 86 12 29566 360 14 -0.0 -14.0 | 266 8 7.9 0.5 87 12 29870 65 10 -9.1 -4.2 | 174 10 -1.1 10.3 88 11 30175 150 10 -5.0 8.7 | 187 23 2.9 23.2 89 10 30940 225 7 4.9 4.9 | 214 23 12.9 19.4 90 7 33370 250 10 9.4 3.4 | 224 25 17.3 17.9 Wind Parameters Mean winds (0-6000m): 358.7 at 22.0 knts Storm direction: 28.7 at 16.5 knts Shear (0-3000m) pos: 0.6 neg: 3.0 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 85.6 deg Storm rel helicity (0-3000m) pos: 19.6 neg: -77.6 tot: -58.0 m^2/s^2 ave: -19.3 10^-3 m/s^2 rel: -0.12 Storm rel vorticity (0-3000m) horiz: 11.1 stream: -1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.09 Bulk Shear: 87.17 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 ------------------------------------------------------------------------------- 500 241 6 217 22| 0.0 3.0 3.0| 7.3 -24.7 -17.4 -34.8 -0.34| 8.8 -3.0 1000 211 6 209 22| 0.0 3.9 3.9| 7.3 -51.8 -44.5 -44.5 -0.47| 8.6 -4.1 1500 191 6 204 22| 0.0 5.4 5.4| 11.8 -65.2 -53.4 -35.6 -0.32| 11.5 -3.6 2000 74 7 184 12| 0.0 4.6 4.6| 14.9 -66.9 -52.1 -26.0 -0.22| 11.1 -2.4 2500 28 9 210 7| 0.0 3.5 3.5| 16.4 -72.5 -56.1 -22.4 -0.15| 11.3 -1.7 3000 23 10 217 7| 0.6 3.0 3.6| 19.6 -77.6 -58.0 -19.3 -0.12| 11.1 -1.4 4000 11 14 264 5| 0.5 4.2 4.6| 23.6 -84.7 -61.1 -15.3 -0.08| 10.7 -0.9 5000 1 19 299 9| 0.4 3.7 4.1| 32.6-106.8 -74.2 -14.8 -0.09| 9.6 -0.9 6000 359 22 312 11| 1.1 3.0 4.1|107.0-149.6 -42.6 -7.1 -0.03| 9.6 -0.3 Wrote GIF file: /home/apache/climate/data/raob//KOAK/skewt/KOAK.skewt.20250418.00.gif