UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042300.upa.cvt Date: 0000Z 23 APR 25 Searching for KOAK... Searching the city database file for: KOAK ... Date:0000Z 23 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 16.4 10.4 68 6.0 12.9 290 13 288.6 289.9 285.5 310.6 7.84 1 1008 38 14.0 9.9 76 4.1 11.7 293 13 286.5 287.8 284.5 307.7 7.61 2 1002 91 13.4 9.0 75 4.4 10.9 298 14 286.4 287.6 284.0 306.5 7.20 3 1000 109 13.4 9.4 77 4.0 11.2 300 14 286.5 287.8 284.3 307.3 7.41 4 994 160 13.0 9.2 78 3.8 10.9 301 13 286.6 287.9 284.2 307.2 7.36 5 985 236 12.4 8.7 78 3.7 10.3 303 12 286.8 288.0 284.1 306.9 7.18 6 982 262 13.2 8.2 72 5.0 10.4 304 12 287.8 289.1 284.4 307.4 6.96 7 969 374 14.0 8.0 67 6.0 10.6 295 12 289.7 291.0 285.1 309.5 6.95 8 968 383 14.0 9.0 72 5.0 11.2 293 12 289.8 291.1 285.7 311.0 7.46 9 953 514 13.4 7.4 67 6.0 10.0 274 14 290.5 291.7 285.2 309.9 6.79 10 950 541 14.4 5.4 55 9.0 9.5 270 14 291.8 292.9 284.9 308.8 5.92 11 947 568 14.2 5.2 55 9.0 9.3 266 14 291.9 292.9 284.8 308.7 5.86 12 940 630 14.6 1.6 41 13.0 8.0 261 14 292.9 293.7 283.9 306.2 4.57 13 934 685 16.4 -3.6 25 20.0 7.1 265 13 295.3 295.8 283.2 304.6 3.13 14 929 730 17.0 -3.0 25 20.0 7.5 268 12 296.3 296.9 283.9 306.2 3.29 15 925 767 16.8 -3.2 25 20.0 7.3 270 11 296.5 297.1 283.9 306.3 3.26 16 893 1066 16.6 -14.4 11 31.0 4.6 278 11 299.3 299.5 282.9 303.7 1.40 17 850 1483 13.6 -15.4 12 29.0 2.8 270 12 300.4 300.6 283.2 304.7 1.36 18 825 1733 11.4 -13.6 16 25.0 1.8 267 13 300.6 300.9 283.7 305.8 1.62 19 775 2251 8.2 -22.8 9 31.0 -1.4 280 12 302.6 302.8 283.5 305.2 0.79 20 716 2898 2.6 -23.4 13 26.0 -5.0 281 14 303.4 303.5 283.8 306.1 0.81 21 700 3080 1.6 -24.4 12 26.0 -5.7 275 17 304.3 304.4 284.1 306.8 0.76 22 681 3300 0.4 -28.6 9 29.0 -7.0 271 15 305.3 305.4 284.2 307.1 0.53 23 586 4481 -8.9 -38.9 7 30.0 -14.1 250 20 307.9 307.9 284.8 308.7 0.22 24 572 4668 -10.1 -43.1 5 33.0 -15.2 254 21 308.6 308.6 285.0 309.2 0.15 25 563 4790 -10.7 -32.7 15 22.0 -15.0 260 21 309.3 309.4 285.6 310.8 0.43 26 553 4927 -11.9 -38.9 9 27.0 -16.3 265 21 309.5 309.5 285.4 310.3 0.24 27 547 5010 -12.1 -44.1 5 32.0 -16.7 264 22 310.2 310.2 285.6 310.7 0.14 28 540 5108 -12.5 -42.5 6 30.0 -17.0 262 22 310.9 310.9 285.8 311.5 0.17 29 537 5151 -12.5 -30.5 21 18.0 -16.2 262 22 311.4 311.5 286.5 313.3 0.56 30 533 5208 -13.1 -26.1 33 13.0 -16.2 261 23 311.3 311.5 286.8 314.2 0.85 31 527 5294 -13.7 -25.7 36 12.0 -16.5 260 23 311.6 311.8 286.9 314.6 0.89 32 522 5366 -14.3 -24.3 42 10.0 -16.7 259 23 311.7 311.9 287.2 315.2 1.02 33 516 5453 -15.1 -27.1 35 12.0 -17.7 258 24 311.8 312.0 286.9 314.5 0.80 34 501 5675 -17.1 -25.1 50 8.0 -18.9 255 25 312.0 312.2 287.2 315.4 0.99 35 500 5690 -17.3 -25.3 50 8.0 -19.1 255 25 311.9 312.1 287.2 315.2 0.98 36 492 5811 -18.3 -26.3 49 8.0 -20.0 251 26 312.2 312.3 287.2 315.2 0.91 37 487 5887 -18.9 -26.9 49 8.0 -20.6 253 26 312.3 312.5 287.2 315.3 0.87 38 471 6135 -21.1 -25.6 67 4.5 -22.1 260 26 312.6 312.8 287.4 316.0 1.01 39 464 6245 -21.7 -25.0 75 3.3 -22.4 259 27 313.2 313.4 287.7 316.9 1.08 40 446 6535 -23.9 -28.4 66 4.5 -24.7 258 28 314.0 314.2 287.7 316.8 0.82 41 430 6801 -26.3 -29.4 75 3.1 -26.8 257 29 314.2 314.4 287.7 316.9 0.78 42 426 6869 -26.7 -31.2 66 4.5 -27.4 257 30 314.6 314.7 287.7 316.9 0.66 43 400 7320 -30.3 -33.7 72 3.4 -30.7 255 32 315.6 315.7 287.9 317.6 0.55 44 390 7500 -31.7 -34.4 77 2.7 -32.0 255 33 316.1 316.2 288.1 317.9 0.53 45 382 7646 -32.9 -37.6 63 4.7 -33.4 255 33 316.4 316.4 288.0 317.8 0.39 46 365 7965 -35.9 -38.8 75 2.9 -36.2 258 33 316.5 316.6 288.1 317.8 0.36 47 350 8256 -38.1 -42.4 64 4.3 -38.4 260 33 317.4 317.4 288.2 318.3 0.26 48 337 8516 -40.5 -42.6 80 2.1 -40.6 251 34 317.5 317.6 288.2 318.5 0.27 49 333 8597 -41.1 -44.8 67 3.7 -41.3 248 34 317.8 317.8 288.3 318.6 0.21 50 327 8721 -42.1 -45.9 66 3.8 -42.3 244 35 318.1 318.1 288.3 318.8 0.19 51 321 8846 -43.1 -45.2 80 2.1 -43.2 240 35 318.4 318.4 288.5 319.2 0.21 52 314 8995 -44.1 -45.8 83 1.7 -44.2 242 35 319.0 319.1 288.6 319.8 0.20 53 312 9037 -44.5 -47.6 71 3.1 -44.7 243 35 319.0 319.1 288.6 319.7 0.17 54 310 9081 -44.7 -49.7 57 5.0 -44.9 244 35 319.3 319.4 288.7 319.8 0.13 55 309 9102 -44.7 -51.7 45 7.0 -45.0 244 35 319.6 319.7 288.8 320.0 0.10 56 300 9300 -45.5 -52.5 45 7.0 -45.8 255 41 321.2 321.2 289.2 321.6 0.10 57 250 10490 -55.3 -58.7 66 3.4 -55.4 255 50 323.9 323.9 290.0 324.1 0.06 58 202 11828 -61.9 -72.9 22 11.0 -62.0 250 43 333.8 333.8 292.7 333.8 0.01 59 200 11890 -61.7 -72.7 22 11.0 -61.8 250 45 335.1 335.1 293.1 335.1 0.01 60 150 13690 -57.3 -84.3 2 27.0 -57.6 260 48 371.4 371.4 300.8 371.4 0.00 61 100 16230 -58.9 -86.9 2 28.0 -59.2 250 37 413.9 413.9 307.0 413.9 0.00 62 93 16686 -57.7 -86.7 1 29.0 -58.1 246 35 425.0 425.0 308.3 425.0 0.00 63 70 18470 -59.5 -87.5 1 28.0 -59.9 250 29 457.1 457.1 311.5 457.1 0.00 64 65 18933 -60.5 -88.5 1 28.0 -60.9 252 26 464.7 464.7 312.2 464.7 0.00 65 50 20580 -57.5 -87.5 1 30.0 -58.3 260 22 508.0 508.0 315.5 508.0 0.00 66 42 21681 -56.9 -86.9 1 30.0 -57.9 270 17 535.4 535.4 317.2 535.5 0.00 67 41 21833 -57.1 -87.1 1 30.0 -58.0 270 19 538.6 538.6 317.5 538.7 0.00 68 35 22839 -54.7 -85.7 1 31.0 -56.1 269 13 569.8 569.8 319.2 569.9 0.01 69 31 23612 -56.3 -86.3 1 30.0 -57.6 274 3 585.6 585.6 319.9 585.7 0.01 70 30 23820 -55.7 -86.7 1 31.0 -57.2 270 7 592.8 592.8 320.3 592.8 0.01 71 29 24036 -55.7 -86.7 1 31.0 -57.2 272 8 598.6 598.6 320.6 598.6 0.01 72 27 24494 -53.1 -85.1 1 32.0 -55.2 280 10 618.2 618.2 321.4 618.3 0.01 73 25 24987 -55.5 -86.5 1 31.0 -57.2 147 10 625.1 625.1 321.7 625.2 0.01 74 21 26106 -52.7 -85.7 1 33.0 -55.4 253 9 665.5 665.5 323.3 665.6 0.01 75 20 26420 -54.1 -85.1 1 31.0 -56.5 210 8 670.6 670.6 323.4 670.7 0.01 76 19 26750 -54.7 -85.7 1 31.0 -57.1 244 5 678.6 678.6 323.7 678.7 0.01 77 14 28741 -47.3 -82.3 1 35.0 -52.7 268 11 765.6 765.7 326.4 765.9 0.03 78 13 29231 -48.3 -83.3 1 35.0 -53.6 321 13 778.6 778.6 326.7 778.8 0.03 79 12 29763 -45.7 -81.7 1 36.0 -52.4 7 13 805.8 805.8 327.4 806.2 0.04 80 11 30342 -46.7 -82.7 1 36.0 -53.2 40 9 822.5 822.5 327.8 822.9 0.04 81 10 30980 -43.1 -81.1 1 38.0 -51.7 75 5 858.7 858.7 328.6 859.2 0.06 82 9.6 31255 -43.5 -81.5 1 38.0 -52.1 58 5 867.2 867.3 328.8 867.8 0.05 83 7.3 33121 -37.3 -78.3 1 41.0 -50.7 303 9 963.2 963.3 330.6 964.6 0.12 84 7.1 33312 -38.1 -79.1 1 41.0 -51.2 291 9 967.6 967.7 330.7 968.8 0.11 85 7.0 33410 -37.9 -78.9 1 41.0 -51.2 285 9 972.4 972.4 330.8 973.7 0.11 86 6.1 34363 -35.7 -78.7 0 43.0 -51.1 1020.9 1020.9 331.5 1022.5 0.13 TRP 202 11828 -61.9 -72.9 22 11.0 -62.0 250 43 333.8 333.8 292.7 333.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5581.00 m Freezing level: 676.91 mb = 3351.28 m = 10994.88 ft Wetbulb zero: 797.02 mb = 2019.02 m = 6624.00 ft Precipitable water: 0.42 inches Sfc-500 mean rel hum: 19.93 % Est. max temperature: 27.96 C = 82.32 F Sfc-Lift cond lev (LCL): 925.19 mb = 765.26 m = 2510.67 ft T: 16.81 C 700-500 lapse rate: 7.24 C/km ThetaE index: 6.33 C Layer 953.0- 929.0 mb Conv cond level (CCL): 682.34 mb = 3284.78 m = 10776.72 ft Mean mixing ratio: 5.82 g/kg Conv temperature: 33.14 C = 91.65 F Cap Strength: 9.08 C Lifted Index: 6.47 C Risk: None Lifted Index @300 mb: 9.79 C Lifted Index @700 mb: 6.85 C Showalter Index: 8.46 C Risk: None Total Totals Index: 32.80 C Risk: None Vertical Totals Index: 30.90 C Cross Totals Index: 1.90 C K Index: -10.50 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 2.17 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 49.20 J/kg Max Up Vert Vel: 9.92 m/s Conv Inhibition (B-): 78004.29 J/kg Cap Strength: 9.08 C Lift Cond Lev (LCL): 836.52 mb = 1616.87 m = 5304.61 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 297 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 1012 3 290 13 12.2 -4.4 | 239 2 1.5 0.9 1 1000 109 300 14 12.1 -7.0 | 319 2 1.4 -1.6 2 977 305 305 11 9.0 -6.3 | 60 2 -1.7 -1.0 3 942 610 260 15 14.8 2.6 | 207 9 4.1 8.0 4 925 767 270 11 11.0 -0.0 | 183 5 0.3 5.4 5 909 914 290 11 10.3 -3.8 | 167 2 -0.4 1.6 6 877 1219 265 10 10.0 0.9 | 173 6 -0.7 6.2 7 850 1483 270 12 12.0 -0.0 | 194 6 1.3 5.4 8 846 1524 260 12 11.8 2.1 | 189 8 1.1 7.4 9 815 1829 270 13 13.0 -0.0 | 203 6 2.3 5.4 10 785 2134 280 13 12.8 -2.3 | 214 4 2.1 3.1 11 757 2438 280 9 8.9 -1.6 | 154 4 -1.8 3.8 12 729 2743 285 12 11.6 -3.1 | 202 2 0.9 2.2 13 700 3080 275 17 16.9 -1.5 | 238 7 6.2 3.9 14 676 3353 270 15 15.0 -0.0 | 219 7 4.3 5.4 15 650 3658 270 12 12.0 -0.0 | 194 6 1.3 5.4 16 625 3962 270 18 18.0 -0.0 | 234 9 7.3 5.4 17 601 4267 250 17 16.0 5.8 | 205 12 5.3 11.2 18 578 4572 250 21 19.7 7.2 | 216 15 9.0 12.5 19 555 4877 265 21 20.9 1.8 | 235 12 10.2 7.2 20 500 5690 255 25 24.1 6.5 | 229 18 13.5 11.8 21 493 5791 250 26 24.4 8.9 | 224 20 13.7 14.2 22 473 6096 260 26 25.6 4.5 | 236 18 14.9 9.9 23 400 7320 255 32 30.9 8.3 | 236 24 20.2 13.6 24 383 7620 255 33 31.9 8.5 | 237 25 21.2 13.9 25 350 8230 260 33 32.5 5.7 | 243 24 21.8 11.1 26 321 8839 240 35 30.3 17.5 | 221 30 19.6 22.9 27 307 9144 245 35 31.7 14.8 | 226 29 21.0 20.1 28 300 9300 255 41 39.6 10.6 | 241 33 28.9 16.0 29 250 10490 255 50 48.3 12.9 | 244 42 37.6 18.3 30 243 10668 255 50 48.3 12.9 | 244 42 37.6 18.3 31 202 11828 250 43 40.4 14.7 | 236 36 29.7 20.1 32 200 11887 250 40 37.6 13.7 | 235 33 26.9 19.0 33 200 11890 250 45 42.3 15.4 | 237 38 31.6 20.7 34 173 12802 260 44 43.3 7.6 | 248 35 32.6 13.0 35 157 13411 245 53 48.0 22.4 | 233 47 37.3 27.8 36 150 13690 260 48 47.3 8.3 | 249 39 36.6 13.7 37 136 14326 270 39 39.0 -0.0 | 259 29 28.3 5.4 38 123 14935 255 34 32.8 8.8 | 237 26 22.1 14.2 39 117 15240 255 39 37.7 10.1 | 240 31 27.0 15.4 40 100 16230 250 37 34.8 12.7 | 233 30 24.1 18.0 41 96 16459 250 37 34.8 12.7 | 233 30 24.1 18.0 42 92 16764 245 34 30.8 14.4 | 226 28 20.1 19.7 43 79 17678 270 28 28.0 -0.0 | 253 18 17.3 5.4 44 72 18288 255 27 26.1 7.0 | 231 20 15.4 12.3 45 70 18470 250 29 27.3 9.9 | 227 23 16.6 15.3 46 69 18593 245 27 24.5 11.4 | 219 22 13.8 16.8 47 59 19507 265 24 23.9 2.1 | 241 15 13.2 7.4 48 57 19812 250 27 25.4 9.2 | 225 21 14.7 14.6 49 50 20580 260 22 21.7 3.8 | 230 14 11.0 9.2 50 49 20726 255 20 19.3 5.2 | 219 14 8.6 10.5 51 47 21031 275 18 17.9 -1.6 | 242 8 7.2 3.8 52 44 21336 270 14 14.0 -0.0 | 212 6 3.3 5.4 53 40 21946 270 20 20.0 -0.0 | 240 11 9.3 5.4 54 37 22555 255 14 13.5 3.6 | 197 9 2.8 9.0 55 35 22860 270 13 13.0 -0.0 | 203 6 2.3 5.4 56 30 23774 275 1 1.0 -0.1 | 119 11 -9.7 5.3 57 30 23820 270 7 7.0 -0.0 | 145 7 -3.7 5.4 58 27 24384 275 10 10.0 -0.9 | 171 5 -0.7 4.5 59 26 24689 290 10 9.4 -3.4 | 146 2 -1.3 1.9 60 25 24994 145 10 -5.7 8.2 | 130 21 -16.4 13.5 61 24 25298 165 15 -3.9 14.5 | 144 25 -14.6 19.8 62 22 25908 280 10 9.8 -1.7 | 167 4 -0.8 3.6 63 20 26420 210 8 4.0 6.9 | 151 14 -6.7 12.3 64 20 26518 245 2 1.8 0.8 | 125 11 -8.9 6.2 65 17 27432 240 12 10.4 6.0 | 178 11 -0.3 11.4 66 16 28042 275 10 10.0 -0.9 | 171 5 -0.7 4.5 67 14 28651 255 10 9.7 2.6 | 173 8 -1.0 7.9 68 12 29566 355 15 1.3 -14.9 | 44 13 -9.4 -9.6 69 10 30980 75 5 -4.8 -1.3 | 105 16 -15.5 4.1 70 7 33410 285 9 8.7 -2.3 | 146 4 -2.0 3.0 Wind Parameters Mean winds (0-6000m): 266.6 at 15.9 knts Storm direction: 296.6 at 12.0 knts Shear (0-3000m) pos: 1.2 neg: 1.9 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): -2.7 deg Storm rel helicity (0-3000m) pos: 12.4 neg: -10.0 tot: 2.4 m^2/s^2 ave: 0.8 10^-3 m/s^2 rel: 0.23 Storm rel vorticity (0-3000m) horiz: 8.1 stream: 1.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 6.06 Bulk Shear: 8.12 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 ------------------------------------------------------------------------------- 500 296 13 277 1| 0.0 3.5 3.5| 2.3 -0.1 2.3 4.5 0.71| 14.4 10.3 1000 284 12 211 3| 1.7 1.7 3.4| 2.4 -6.6 -4.2 -4.2 0.22| 13.7 3.0 1500 280 12 197 4| 1.1 2.4 3.5| 5.3 -6.9 -1.5 -1.0 0.23| 11.0 2.6 2000 276 12 198 4| 1.0 1.8 2.8| 8.3 -6.9 1.5 0.7 0.26| 9.2 2.4 2500 277 12 196 4| 1.4 1.5 2.9| 8.7 -10.0 -1.3 -0.5 0.16| 8.3 1.3 3000 278 12 198 4| 1.2 1.9 3.1| 12.4 -10.0 2.4 0.8 0.23| 8.1 1.8 4000 276 13 207 5| 0.9 1.9 2.7| 18.6 -17.5 1.1 0.3 0.17| 7.5 1.3 5000 270 14 213 6| 0.9 2.0 2.9| 43.6 -30.0 13.6 2.7 0.17| 7.5 1.3 6000 267 16 220 8| 0.8 2.1 2.9| 57.2 -43.1 14.1 2.4 0.15| 7.1 1.0 Wrote GIF file: /home/apache/climate/data/raob//KOAK/skewt/KOAK.skewt.20250423.00.gif