UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042700.upa.cvt Date: 0000Z 27 APR 25 Searching for KOAK... Searching the city database file for: KOAK ... Date:0000Z 27 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 1012 3 13.2 8.2 72 5.0 10.4 265 12 285.4 286.5 283.1 304.2 6.75 1 1006 54 11.8 8.1 78 3.7 9.8 263 12 284.5 285.6 282.7 303.2 6.74 2 1000 106 11.6 7.8 77 3.8 9.5 260 12 284.8 285.9 282.7 303.2 6.64 3 944 584 6.6 6.6 100 0.0 6.6 260 12 284.4 285.5 282.4 302.4 6.48 4 939 628 6.4 6.1 98 0.3 6.2 262 12 284.6 285.7 282.3 302.2 6.29 5 938 636 6.6 4.9 89 1.7 5.7 264 11 284.9 285.9 281.8 301.1 5.79 6 925 751 6.0 4.0 87 2.0 5.0 280 8 285.4 286.4 281.7 300.9 5.51 7 912 867 6.0 2.0 75 4.0 4.1 273 5 286.6 287.4 281.5 300.3 4.85 8 890 1067 4.4 0.9 78 3.5 2.8 258 5 287.0 287.8 281.3 300.0 4.59 9 877 1187 3.6 -0.2 76 3.8 1.8 248 7 287.3 288.1 281.1 299.6 4.30 10 862 1327 2.8 -3.2 65 6.0 0.3 255 7 287.9 288.5 280.5 298.0 3.50 11 850 1440 2.0 -3.0 69 5.0 -0.2 265 7 288.2 288.9 280.7 298.6 3.60 12 843 1507 1.6 -2.7 73 4.3 -0.3 263 8 288.5 289.2 281.0 299.2 3.71 13 814 1788 0.0 -6.0 64 6.0 -2.4 256 11 289.7 290.2 280.7 298.5 3.00 14 774 2190 -2.5 -7.4 69 4.9 -4.4 277 9 291.2 291.7 281.1 299.6 2.83 15 756 2376 -4.1 -6.4 84 2.3 -5.0 287 6 291.5 292.0 281.6 300.7 3.13 16 755 2387 -4.1 -6.5 83 2.4 -5.0 287 6 291.6 292.1 281.7 300.7 3.11 17 748 2460 -3.9 -8.8 69 4.9 -5.7 285 5 292.6 293.0 281.5 300.4 2.62 18 743 2513 -4.1 -10.1 63 6.0 -6.2 269 4 292.9 293.3 281.4 300.1 2.38 19 728 2674 -5.3 -10.0 69 4.7 -7.0 222 3 293.3 293.7 281.6 300.7 2.45 20 700 2981 -7.3 -9.9 82 2.6 -8.2 255 4 294.4 294.9 282.3 302.1 2.57 21 682 3183 -8.9 -10.1 91 1.2 -9.3 277 3 294.8 295.3 282.4 302.6 2.60 22 668 3344 -9.9 -10.7 94 0.8 -10.2 294 3 295.4 295.9 282.6 303.1 2.53 23 655 3495 -11.1 -13.2 84 2.1 -11.8 311 3 295.8 296.1 282.3 302.2 2.11 24 651 3542 -10.9 -14.8 73 3.9 -12.1 316 2 296.5 296.8 282.3 302.2 1.86 25 642 3649 -11.7 -16.0 70 4.3 -12.9 327 2 296.8 297.1 282.2 302.1 1.71 26 624 3866 -12.9 -14.8 86 1.9 -13.5 321 9 297.8 298.2 282.9 303.8 1.94 27 608 4064 -13.7 -16.2 81 2.5 -14.4 322 13 299.1 299.5 283.2 304.7 1.77 28 588 4317 -15.9 -18.5 80 2.6 -16.6 341 13 299.4 299.7 283.1 304.2 1.51 29 585 4355 -15.9 -19.9 71 4.0 -16.9 343 13 299.9 300.1 283.1 304.2 1.35 30 546 4871 -19.7 -20.8 91 1.1 -20.0 341 17 301.3 301.6 283.7 305.6 1.33 31 522 5204 -21.5 -23.1 87 1.6 -21.8 353 16 303.1 303.3 284.1 306.8 1.14 32 500 5520 -23.7 -26.0 81 2.3 -24.1 360 15 304.1 304.3 284.2 307.2 0.92 33 491 5652 -24.9 -27.6 78 2.7 -25.4 355 17 304.3 304.4 284.1 306.9 0.81 34 472 5938 -26.7 -28.8 82 2.1 -27.1 355 21 305.5 305.6 284.5 308.0 0.75 35 448 6312 -29.7 -32.9 74 3.2 -30.1 7 24 306.3 306.4 284.6 308.1 0.54 36 428 6636 -31.9 -34.5 78 2.6 -32.2 7 28 307.5 307.6 285.0 309.2 0.48 37 426 6669 -32.1 -35.3 73 3.2 -32.4 6 28 307.7 307.8 285.0 309.2 0.44 38 421 6752 -32.7 -36.5 69 3.8 -33.1 5 29 307.9 308.0 285.1 309.3 0.40 39 400 7110 -36.1 -38.7 77 2.6 -36.3 360 35 308.1 308.1 285.0 309.2 0.34 40 373 7590 -40.5 -42.8 78 2.3 -40.6 355 38 308.5 308.5 285.1 309.3 0.23 41 366 7718 -41.3 -44.8 69 3.5 -41.5 355 39 309.1 309.1 285.2 309.8 0.19 42 363 7774 -41.9 -44.6 75 2.7 -42.1 355 40 309.0 309.0 285.2 309.7 0.20 43 350 8019 -44.1 -47.9 66 3.8 -44.3 355 44 309.3 309.3 285.2 309.8 0.14 44 346 8096 -44.7 -47.5 73 2.8 -44.8 355 45 309.5 309.5 285.3 310.0 0.15 45 344 8135 -44.9 -46.3 86 1.4 -45.0 355 45 309.7 309.7 285.4 310.3 0.17 46 339 8232 -45.7 -46.9 88 1.2 -45.7 355 47 309.9 310.0 285.5 310.5 0.17 47 336 8291 -46.1 -48.8 74 2.7 -46.2 357 46 310.2 310.2 285.5 310.7 0.13 48 332 8371 -46.9 -48.2 86 1.3 -47.0 0 46 310.1 310.2 285.5 310.7 0.15 49 330 8411 -47.3 -49.8 75 2.5 -47.4 2 45 310.1 310.1 285.5 310.6 0.12 50 327 8471 -47.3 -55.3 39 8.0 -47.6 4 45 310.9 310.9 285.7 311.2 0.06 51 326 8491 -47.3 -53.3 50 6.0 -47.5 5 44 311.2 311.2 285.9 311.5 0.08 52 323 8552 -47.5 -56.5 35 9.0 -47.8 8 44 311.7 311.8 286.0 312.0 0.06 53 322 8573 -47.9 -55.9 39 8.0 -48.1 8 43 311.5 311.5 285.9 311.7 0.06 54 320 8614 -48.1 -58.1 31 10.0 -48.4 10 43 311.7 311.8 286.0 311.9 0.05 55 300 9040 -46.1 -70.1 5 24.0 -46.6 10 32 320.4 320.4 288.9 320.4 0.01 56 250 10260 -46.1 -76.1 2 30.0 -46.7 315 12 337.5 337.5 293.7 337.5 0.00 57 200 11740 -48.1 -80.1 1 32.0 -48.7 280 12 356.6 356.6 298.0 356.6 0.00 58 150 13620 -52.1 -83.1 1 31.0 -52.6 285 14 380.3 380.3 302.3 380.3 0.00 59 100 16220 -55.5 -85.5 1 30.0 -56.0 240 17 420.5 420.5 307.8 420.5 0.00 60 95 16548 -54.7 -85.7 1 31.0 -55.3 246 15 428.3 428.3 308.6 428.3 0.00 61 87 17110 -56.7 -85.7 1 29.0 -57.2 214 12 435.2 435.2 309.4 435.2 0.00 62 75 18058 -54.3 -86.3 1 32.0 -55.1 237 14 459.1 459.1 311.7 459.1 0.00 63 70 18500 -55.1 -86.1 1 31.0 -55.8 200 12 466.5 466.5 312.3 466.5 0.00 64 56 19916 -56.5 -86.5 1 30.0 -57.3 238 12 494.1 494.1 314.5 494.1 0.00 65 50 20630 -58.7 -87.7 1 29.0 -59.4 110 11 505.2 505.2 315.3 505.2 0.00 66 46 21152 -60.1 -88.1 1 28.0 -60.7 139 16 514.0 514.0 315.9 514.0 0.00 67 43 21576 -57.5 -87.5 1 30.0 -58.4 173 13 530.4 530.4 316.9 530.4 0.00 68 41 21876 -58.9 -87.9 1 29.0 -59.7 163 13 534.2 534.2 317.2 534.2 0.00 69 38 22355 -56.7 -87.7 1 31.0 -57.8 190 10 551.5 551.5 318.2 551.5 0.00 70 36 22697 -58.1 -88.1 1 30.0 -59.0 215 10 556.5 556.5 318.5 556.5 0.00 71 31 23649 -53.5 -86.5 1 33.0 -55.3 342 12 593.2 593.2 320.3 593.2 0.01 72 30 23860 -53.9 -85.9 1 32.0 -55.7 65 14 597.7 597.7 320.5 597.8 0.01 73 27 24535 -55.9 -86.9 1 31.0 -57.5 96 13 610.4 610.4 321.1 610.4 0.01 74 24 25290 -53.3 -86.3 1 33.0 -55.6 279 10 638.8 638.8 322.3 638.9 0.01 75 22 25851 -53.3 -86.3 1 33.0 -55.7 125 11 654.9 654.9 322.9 655.0 0.01 76 20 26470 -50.3 -84.3 1 34.0 -53.7 35 9 682.2 682.2 323.9 682.3 0.02 77 19 26805 -50.7 -84.7 1 34.0 -54.1 22 10 691.0 691.1 324.1 691.2 0.02 78 16 27926 -50.3 -84.3 1 34.0 -54.2 317 4 727.2 727.2 325.3 727.3 0.02 79 14 28803 -47.3 -83.3 1 36.0 -52.8 337 9 765.6 765.7 326.4 765.9 0.03 80 12 29820 -48.7 -83.7 1 35.0 -54.1 321 7 795.2 795.2 327.1 795.5 0.03 81 11 30399 -43.7 -81.7 1 38.0 -51.7 294 4 833.4 833.4 328.0 833.8 0.05 82 10 31040 -43.1 -82.1 1 39.0 -51.7 305 11 858.7 858.7 328.6 859.1 0.05 83 9.9 31108 -42.9 -81.9 1 39.0 -51.7 305 11 861.9 861.9 328.7 862.4 0.05 84 8.8 31902 -43.9 -81.9 1 38.0 -52.7 305 14 887.5 887.6 329.2 888.1 0.06 85 8.1 32463 -41.1 -81.1 1 40.0 -51.8 305 16 919.9 920.0 329.8 920.7 0.07 86 7.8 32722 -38.1 -80.1 0 42.0 -50.7 305 17 941.9 942.0 330.2 942.9 0.08 87 7.0 33470 -36.7 -78.7 0 42.0 -50.7 305 20 977.3 977.4 330.8 978.7 0.12 88 6.7 33773 -37.5 -79.5 0 42.0 -51.2 986.3 986.4 330.9 987.5 0.11 89 6.5 33983 -35.5 -78.5 0 43.0 -50.7 1003.3 1003.4 331.2 1004.9 0.13 90 6.2 34312 -35.7 -78.7 0 43.0 -51.0 1016.1 1016.2 331.5 1017.7 0.13 TRP 320 8614 -48.1 -58.1 31 10.0 -48.4 10 43 311.7 311.8 286.0 311.9 0.05 WND Sounding variables and indices 1000-500 mb thick: 5414.00 m Freezing level: 814.00 mb = 1788.11 m = 5866.43 ft Wetbulb zero: 854.56 mb = 1396.66 m = 4582.16 ft Precipitable water: 0.70 inches Sfc-500 mean rel hum: 79.40 % Est. max temperature: 15.76 C = 60.36 F Sfc-Lift cond lev (LCL): 938.56 mb = 631.49 m = 2071.80 ft T: 6.49 C 700-500 lapse rate: 6.46 C/km ThetaE index: 5.20 C Layer 944.0- 850.0 mb Conv cond level (CCL): 904.61 mb = 933.59 m = 3062.94 ft Mean mixing ratio: 6.26 g/kg Conv temperature: 14.55 C = 58.20 F Cap Strength: 3.27 C Lifted Index: 3.64 C Risk: None Lifted Index @300 mb: 12.94 C Lifted Index @700 mb: 0.82 C Showalter Index: 6.22 C Risk: None Total Totals Index: 46.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.70 C Cross Totals Index: 20.70 C K Index: 20.10 Risk: 20-40 % chance of thunderstorms Sweat Index: 29.00 Risk: None Energy Index: 1.74 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.93 J/kg Max Up Vert Vel: 3.44 m/s Conv Inhibition (B-): 69012.75 J/kg Cap Strength: 3.48 C Lift Cond Lev (LCL): 929.99 mb = 706.82 m = 2318.93 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 343 at 8 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 1012 3 265 12 12.0 1.0 | 229 13 9.8 8.4 1 1000 106 260 12 11.8 2.1 | 226 13 9.6 9.5 2 976 305 255 16 15.5 4.1 | 229 18 13.3 11.5 3 941 610 260 12 11.8 2.1 | 226 13 9.6 9.5 4 925 751 280 8 7.9 -1.4 | 224 8 5.7 6.0 5 907 914 270 4 4.0 -0.0 | 194 8 1.8 7.4 6 873 1219 245 7 6.3 3.0 | 202 11 4.2 10.3 7 850 1440 265 7 7.0 0.6 | 211 9 4.8 8.0 8 809 1829 255 11 10.6 2.8 | 220 13 8.4 10.2 9 779 2134 275 10 10.0 -0.9 | 230 10 7.8 6.5 10 750 2438 290 5 4.7 -1.7 | 204 6 2.5 5.7 11 721 2743 200 2 0.7 1.9 | 171 9 -1.5 9.2 12 700 2981 255 4 3.9 1.0 | 191 9 1.7 8.4 13 640 3658 330 2 1.0 -1.7 | 168 6 -1.2 5.6 14 615 3962 315 13 9.2 -9.2 | 285 7 7.0 -1.8 15 590 4267 340 13 4.4 -12.2 | 335 5 2.3 -4.8 16 567 4572 355 13 1.1 -13.0 | 11 6 -1.1 -5.6 17 544 4877 340 17 5.8 -16.0 | 337 9 3.6 -8.6 18 502 5486 5 16 -1.4 -15.9 | 23 9 -3.6 -8.6 19 500 5520 360 15 -0.0 -15.0 | 16 8 -2.2 -7.6 20 481 5791 350 19 3.3 -18.7 | 354 11 1.1 -11.3 21 461 6096 360 23 -0.0 -23.0 | 8 16 -2.2 -15.6 22 442 6401 10 24 -4.2 -23.6 | 21 17 -6.4 -16.3 23 400 7110 360 35 -0.0 -35.0 | 5 28 -2.2 -27.6 24 371 7620 355 38 3.3 -37.9 | 358 31 1.1 -30.5 25 339 8230 355 47 4.1 -46.8 | 357 40 1.9 -39.5 26 320 8614 10 43 -7.5 -42.3 | 15 36 -9.7 -35.0 27 300 9040 10 32 -5.6 -31.5 | 18 25 -7.7 -24.1 28 295 9144 10 33 -5.7 -32.5 | 17 26 -7.9 -25.1 29 270 9754 5 22 -1.9 -21.9 | 16 15 -4.1 -14.5 30 258 10058 350 26 4.5 -25.6 | 353 18 2.3 -18.2 31 250 10260 315 12 8.5 -8.5 | 280 6 6.3 -1.1 32 246 10363 345 14 3.6 -13.5 | 347 6 1.4 -6.2 33 235 10668 330 22 11.0 -19.1 | 323 15 8.8 -11.7 34 214 11278 345 18 4.7 -17.4 | 346 10 2.5 -10.0 35 205 11582 335 10 4.2 -9.1 | 310 3 2.0 -1.7 36 200 11740 280 12 11.8 -2.1 | 241 11 9.6 5.3 37 196 11887 280 10 9.8 -1.7 | 234 10 7.7 5.6 38 187 12192 300 13 11.3 -6.5 | 265 9 9.1 0.9 39 178 12497 280 18 17.7 -3.1 | 255 16 15.5 4.2 40 170 12802 305 15 12.3 -8.6 | 277 10 10.1 -1.2 41 155 13411 270 10 10.0 -0.0 | 227 11 7.8 7.4 42 150 13620 285 14 13.5 -3.6 | 252 12 11.3 3.7 43 148 13716 285 14 13.5 -3.6 | 252 12 11.3 3.7 44 141 14021 255 12 11.6 3.1 | 222 14 9.4 10.5 45 134 14326 280 15 14.8 -2.6 | 249 13 12.6 4.8 46 128 14630 265 12 12.0 1.0 | 229 13 9.8 8.4 47 122 14935 275 14 13.9 -1.2 | 242 13 11.8 6.1 48 117 15240 250 12 11.3 4.1 | 218 15 9.1 11.5 49 106 15850 220 7 4.5 5.4 | 190 13 2.3 12.7 50 101 16154 230 18 13.8 11.6 | 211 22 11.6 18.9 51 100 16220 240 17 14.7 8.5 | 218 20 12.5 15.9 52 96 16459 240 17 14.7 8.5 | 218 20 12.5 15.9 53 92 16764 260 11 10.8 1.9 | 223 13 8.6 9.3 54 88 17069 210 11 5.5 9.5 | 191 17 3.3 16.9 55 83 17374 240 20 17.3 10.0 | 221 23 15.1 17.4 56 80 17678 265 21 20.9 1.8 | 244 21 18.7 9.2 57 72 18288 220 10 6.4 7.7 | 196 16 4.2 15.0 58 70 18500 200 12 4.1 11.3 | 186 19 1.9 18.6 59 69 18593 225 15 10.6 10.6 | 205 20 8.4 18.0 60 66 18898 200 12 4.1 11.3 | 186 19 1.9 18.6 61 63 19202 205 10 4.2 9.1 | 187 17 2.0 16.4 62 60 19507 215 19 10.9 15.6 | 201 25 8.7 22.9 63 57 19812 230 13 10.0 8.4 | 206 18 7.8 15.7 64 54 20117 255 10 9.7 2.6 | 217 12 7.5 10.0 65 50 20630 110 11 -10.3 3.8 | 132 17 -12.5 11.1 66 49 20726 110 3 -2.8 1.0 | 149 10 -5.0 8.4 67 47 21031 120 16 -13.9 8.0 | 134 22 -16.0 15.4 68 45 21336 165 16 -4.1 15.5 | 164 24 -6.3 22.8 69 43 21641 175 12 -1.0 12.0 | 170 20 -3.2 19.3 70 41 21946 160 13 -4.4 12.2 | 161 21 -6.6 19.6 71 39 22250 190 10 1.7 9.8 | 178 17 -0.5 17.2 72 37 22555 190 10 1.7 9.8 | 178 17 -0.5 17.2 73 35 22860 240 11 9.5 5.5 | 210 15 7.3 12.9 74 33 23165 295 11 10.0 -4.6 | 251 8 7.8 2.7 75 32 23470 345 13 3.4 -12.6 | 347 5 1.2 -5.2 76 30 23774 340 11 3.8 -10.3 | 332 3 1.6 -3.0 77 30 23860 65 14 -12.7 -5.9 | 96 15 -14.9 1.5 78 29 24079 60 10 -8.7 -5.0 | 102 11 -10.8 2.4 79 28 24384 85 14 -13.9 -1.2 | 111 17 -16.1 6.1 80 25 24994 130 10 -7.7 6.4 | 144 17 -9.8 13.8 81 24 25298 280 10 9.8 -1.7 | 234 10 7.7 5.6 82 23 25603 50 10 -7.7 -6.4 | 95 10 -9.8 0.9 83 22 25908 140 11 -7.1 8.4 | 150 18 -9.3 15.8 84 20 26470 35 9 -5.2 -7.4 | 90 7 -7.4 -0.0 85 20 26518 315 12 8.5 -8.5 | 280 6 6.3 -1.1 86 19 26822 25 10 -4.2 -9.1 | 75 7 -6.4 -1.7 87 18 27127 0 0 -0.0 -0.0 | 163 8 -2.2 7.4 88 17 27432 305 1 0.8 -0.6 | 169 7 -1.4 6.8 89 14 28956 340 10 3.4 -9.4 | 329 2 1.2 -2.0 90 13 29261 15 16 -4.1 -15.5 | 38 10 -6.3 -8.1 91 11 30175 290 2 1.9 -0.7 | 177 7 -0.3 6.7 92 10 31040 305 11 9.0 -6.3 | 261 7 6.8 1.1 93 7 33470 305 20 16.4 -11.5 | 286 15 14.2 -4.1 Wind Parameters Mean winds (0-6000m): 313.5 at 10.2 knts Storm direction: 343.5 at 7.7 knts Shear (0-3000m) pos: 1.6 neg: 0.5 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): -37.9 deg Storm rel helicity (0-3000m) pos: 27.8 neg: -31.9 tot: -4.0 m^2/s^2 ave: -1.3 10^-3 m/s^2 rel: -0.09 Storm rel vorticity (0-3000m) horiz: 7.7 stream: -0.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.33 Bulk Shear: 18.15 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 ------------------------------------------------------------------------------- 500 258 14 228 15| 0.0 2.1 2.1| 3.6 -5.0 -1.4 -2.7 -0.05| 8.1 -0.4 1000 261 11 224 13| 4.4 1.1 5.5| 4.7 -15.9 -11.2 -11.2 -0.25| 9.8 -2.4 1500 260 10 218 12| 2.0 0.7 2.7| 11.5 -15.9 -4.4 -2.9 -0.09| 8.3 -0.7 2000 259 10 219 12| 0.9 0.5 1.4| 19.5 -15.9 3.6 1.8 0.01| 7.6 0.1 2500 262 9 219 11| 1.9 0.4 2.3| 21.3 -24.1 -2.7 -1.1 -0.08| 7.8 -0.6 3000 262 8 215 10| 1.6 0.5 2.0| 27.8 -31.9 -4.0 -1.3 -0.09| 7.7 -0.7 4000 268 7 214 9| 1.8 0.3 2.1| 35.6 -35.5 0.1 0.0 0.04| 7.7 0.3 5000 292 9 235 7| 2.0 0.3 2.3| 50.0 -42.4 7.6 1.5 0.10| 7.6 0.8 6000 313 10 267 5| 1.9 0.7 2.6| 69.4 -52.6 16.8 2.8 0.12| 7.6 0.9 Wrote GIF file: /home/apache/climate/data/raob//KOAK/skewt/KOAK.skewt.20250427.00.gif