UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for OI738... Searching the city database file for: OI738 ... Date:1200Z 18 APR 25 Station: OI738 WMO ident: 40738 ------------------------------------------------------------------------------- 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 -11 17.0 4.0 42 13.0 10.2 270 12 288.0 288.9 282.3 302.2 4.96 1 1021 31 15.6 2.6 42 13.0 9.0 272 12 287.0 287.8 281.3 299.9 4.51 2 1000 206 13.8 2.8 47 11.0 8.3 280 13 287.0 287.8 281.4 300.3 4.68 3 925 857 7.8 -1.2 53 9.0 3.7 275 12 287.3 287.9 280.5 298.1 3.78 4 850 1547 2.0 -1.8 76 3.8 0.3 245 16 288.2 288.9 281.1 299.6 3.94 5 746 2589 -4.7 -6.5 87 1.8 -5.4 262 10 291.9 292.5 281.8 301.2 3.15 6 725 2813 -5.3 -8.5 78 3.2 -6.5 265 9 293.7 294.1 282.1 301.9 2.77 7 718 2890 -5.1 -9.2 73 4.1 -6.6 267 8 294.7 295.2 282.4 302.7 2.65 8 700 3089 -6.3 -11.1 69 4.8 -7.9 270 7 295.5 295.9 282.4 302.6 2.34 9 662 3524 -8.3 -14.3 62 6.0 -10.2 274 10 298.0 298.4 283.0 303.9 1.91 10 657 3582 -7.9 -14.9 57 7.0 -10.1 275 10 299.1 299.4 283.3 304.8 1.83 11 525 5289 -18.9 -40.9 12 22.0 -21.7 291 22 305.7 305.7 284.0 306.4 0.20 12 500 5650 -21.9 -39.9 18 18.0 -24.1 295 24 306.3 306.4 284.2 307.2 0.24 13 484 5890 -23.1 -37.1 27 14.0 -24.9 295 27 307.7 307.8 284.9 308.9 0.33 14 470 6106 -24.1 -41.1 19 17.0 -26.1 295 30 309.1 309.1 285.2 309.9 0.22 15 426 6819 -29.1 -39.1 37 10.0 -30.2 295 39 311.5 311.6 286.2 312.6 0.30 16 415 7007 -29.5 -46.5 18 17.0 -30.9 295 42 313.3 313.4 286.7 313.9 0.14 17 400 7270 -31.9 -46.9 21 15.0 -33.1 295 45 313.5 313.6 286.8 314.0 0.14 18 326 8677 -44.9 -53.9 36 9.0 -45.2 281 48 314.5 314.5 287.0 314.8 0.08 19 300 9230 -47.3 -62.3 16 15.0 -47.7 275 49 318.7 318.7 288.3 318.8 0.03 20 290 9454 -47.9 -64.9 12 17.0 -48.3 280 53 320.9 320.9 289.0 321.0 0.02 21 276 9782 -45.7 -66.7 8 21.0 -46.2 282 54 328.7 328.7 291.3 328.8 0.02 22 250 10440 -47.1 -77.1 2 30.0 -47.6 285 55 336.0 336.0 293.3 336.1 0.00 23 234 10879 -47.7 -78.7 2 31.0 -48.3 284 56 341.6 341.6 294.7 341.6 0.00 24 218 11349 -47.1 -78.1 2 31.0 -47.7 282 58 349.5 349.5 296.5 349.5 0.00 25 215 11441 -47.1 -78.1 2 31.0 -47.7 282 58 350.9 350.9 296.8 350.9 0.00 26 204 11789 -47.9 -77.9 2 30.0 -48.5 280 60 354.9 354.9 297.7 354.9 0.00 27 200 11920 -47.7 -78.7 2 31.0 -48.3 280 60 357.2 357.2 298.1 357.3 0.00 28 187 12367 -46.9 -77.9 2 31.0 -47.6 278 61 365.5 365.5 299.7 365.5 0.00 29 150 13810 -54.3 -82.3 2 28.0 -54.7 270 65 376.5 376.5 301.7 376.5 0.00 30 143 14117 -55.5 -83.1 2 27.5 -55.9 275 70 379.5 379.5 302.2 379.6 0.00 31 111 15713 -62.1 -87.1 2 25.0 -62.3 275 54 395.8 395.8 304.6 395.8 0.00 32 101 16298 -62.5 -88.5 2 26.0 -62.7 275 49 405.8 405.8 306.0 405.8 0.00 33 100 16360 -62.5 -88.5 2 26.0 -62.7 275 48 407.0 407.0 306.1 407.0 0.00 34 93 16808 -61.3 -87.3 2 26.0 -61.6 279 44 417.9 417.9 307.4 417.9 0.00 35 70 18560 -63.5 -88.5 2 25.0 -63.8 295 29 448.5 448.5 310.7 448.5 0.00 36 59 19612 -65.9 -89.9 2 24.0 -66.1 325 17 465.6 465.6 312.3 465.6 0.00 37 50 20630 -62.9 -87.9 2 25.0 -63.3 355 6 495.3 495.3 314.6 495.3 0.00 38 30 23830 -57.3 -82.3 3 25.0 -58.5 75 10 588.4 588.4 320.1 588.5 0.02 39 26 24749 -53.5 -79.5 3 26.0 -55.5 71 9 623.8 623.8 321.6 624.0 0.03 40 22 25826 -55.3 -79.3 4 24.0 -57.2 67 7 649.0 649.0 322.7 649.2 0.03 41 20 26440 -53.7 -78.7 3 25.0 -56.1 65 6 671.8 671.8 323.5 672.1 0.04 42 15 28316 -47.3 -75.3 3 28.0 -52.4 750.7 750.7 326.0 751.5 0.09 TRP 290 9454 -47.9 -64.9 12 17.0 -48.3 280 53 320.9 320.9 289.0 321.0 0.02 WND 143 14117 -55.5 -83.1 2 27.5 -55.9 275 70 379.5 379.5 302.2 379.6 0.00 Sounding variables and indices 1000-500 mb thick: 5444.00 m Freezing level: 818.96 mb = 1857.92 m = 6095.45 ft Wetbulb zero: 844.31 mb = 1600.63 m = 5251.36 ft Precipitable water: 0.59 inches Sfc-500 mean rel hum: 53.78 % Est. max temperature: 16.89 C = 62.39 F Sfc-Lift cond lev (LCL): 844.04 mb = 1603.13 m = 5259.54 ft T: 1.64 C 700-500 lapse rate: 6.09 C/km ThetaE index: 2.28 C Layer 1021.0-1000.0 mb Conv cond level (CCL): 794.95 mb = 2081.33 m = 6828.43 ft Mean mixing ratio: 4.33 g/kg Conv temperature: 19.13 C = 66.43 F Cap Strength: 7.45 C Lifted Index: 7.44 C Risk: None Lifted Index @300 mb: 13.73 C Lifted Index @700 mb: 3.41 C Showalter Index: 7.35 C Risk: None Total Totals Index: 44.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.90 C Cross Totals Index: 20.10 C K Index: 17.30 Risk: < 20 % chance of thunderstorms Sweat Index: 176.76 Risk: None Energy Index: 1.62 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.70 J/kg Max Up Vert Vel: 1.18 m/s Conv Inhibition (B-): 48643.26 J/kg Cap Strength: 7.45 C Lift Cond Lev (LCL): 830.99 mb = 1727.48 m = 5667.50 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 308 at 11 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 -11 270 12 12.0 -0.0 | 207 8 3.4 6.7 1 1000 206 280 13 12.8 -2.3 | 224 6 4.2 4.4 2 925 857 275 12 12.0 -1.0 | 211 7 3.4 5.6 3 850 1547 245 16 14.5 6.8 | 204 15 5.9 13.4 4 700 3089 270 7 7.0 -0.0 | 167 7 -1.6 6.7 5 500 5650 295 24 21.8 -10.1 | 285 14 13.2 -3.5 6 400 7270 295 45 40.8 -19.0 | 291 34 32.2 -12.3 7 300 9230 275 49 48.8 -4.3 | 267 40 40.2 2.4 8 290 9454 280 53 52.2 -9.2 | 273 44 43.6 -2.5 9 250 10440 285 55 53.1 -14.2 | 280 45 44.5 -7.5 10 200 11920 280 60 59.1 -10.4 | 274 51 50.5 -3.7 11 150 13810 270 65 65.0 -0.0 | 263 57 56.4 6.7 12 143 14117 275 70 69.7 -6.1 | 269 61 61.2 0.6 13 100 16360 275 48 47.8 -4.2 | 266 39 39.2 2.5 14 70 18560 295 29 26.3 -12.3 | 287 19 17.7 -5.6 15 50 20630 355 6 0.5 -6.0 | 95 8 -8.1 0.7 16 30 23830 75 10 -9.7 -2.6 | 103 19 -18.2 4.1 17 20 26440 65 6 -5.4 -2.5 | 106 15 -14.0 4.2 Wind Parameters Mean winds (0-6000m): 277.9 at 14.5 knts Storm direction: 307.9 at 10.9 knts Shear (0-3000m) pos: 1.7 neg: 1.4 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): -35.3 deg Storm rel helicity (0-3000m) pos: 3.3 neg: -18.7 tot: -15.4 m^2/s^2 ave: -5.1 10^-3 m/s^2 rel: -0.28 Storm rel vorticity (0-3000m) horiz: 3.6 stream: -1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.54 Bulk Shear: 0.45 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 ------------------------------------------------------------------------------- 500 277 13 218 6| 1.8 0.0 1.8| 3.2 -0.8 2.5 4.9 0.49| 2.8 1.4 1000 276 12 216 7| 0.9 1.0 1.9| 3.3 -2.1 1.2 1.2 0.12| 2.5 0.3 1500 269 13 213 8| 0.6 2.7 3.3| 3.3 -6.1 -2.8 -1.9 -0.06| 3.8 -0.2 2000 263 14 210 10| 1.0 2.0 3.0| 3.3 -9.1 -5.8 -2.9 -0.11| 3.7 -0.4 2500 261 13 207 10| 1.4 1.6 3.1| 3.3 -13.3 -10.0 -4.0 -0.18| 3.7 -0.7 3000 261 12 203 9| 1.7 1.4 3.1| 3.3 -18.7 -15.4 -5.1 -0.28| 3.6 -1.0 4000 263 12 201 9| 1.3 1.0 2.3| 13.3 -19.8 -6.5 -1.6 -0.01| 3.6 -0.1 5000 270 13 212 8| 1.5 0.8 2.3| 25.9 -19.8 6.1 1.2 0.16| 3.6 0.6 6000 278 15 231 7| 2.0 0.7 2.6| 39.7 -19.8 19.9 3.3 0.22| 3.8 0.8 Wrote GIF file: /home/apache/climate/data/raob//OI738/skewt/OI738.skewt.20250418.12.gif