UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042023.upa.cvt Date: 2300Z 20 APR 25 Searching for Y4775... Searching the city database file for: Y4775 ... Date:2300Z 20 APR 25 Station: Y4775 WMO ident: 94775 ------------------------------------------------------------------------------- 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 1010 23 20.8 16.2 75 4.6 17.8 240 1 293.1 295.2 290.6 326.0 11.54 1 1000 109 21.8 13.8 60 8.0 16.7 300 9 295.0 296.7 289.9 323.6 9.96 2 998 126 22.0 13.0 57 9.0 16.3 300 10 295.3 297.0 289.5 322.6 9.46 3 925 782 17.8 10.8 64 7.0 13.5 290 26 297.5 299.1 289.8 323.2 8.82 4 850 1499 12.4 7.4 72 5.0 9.5 290 19 299.1 300.5 289.2 321.6 7.62 5 721 2854 1.2 0.9 98 0.3 1.0 327 19 301.3 302.3 288.2 318.2 5.67 6 700 3092 0.4 0.3 99 0.1 0.3 330 22 302.9 304.0 288.7 319.8 5.59 7 646 3731 -3.1 -3.2 99 0.1 -3.1 329 24 306.0 306.9 288.9 320.4 4.68 8 540 5127 -11.5 -13.4 86 1.9 -12.2 312 53 312.1 312.6 288.8 320.2 2.52 9 522 5385 -13.7 -16.2 81 2.5 -14.5 318 56 312.5 312.9 288.5 319.2 2.07 10 506 5621 -16.7 -31.7 26 15.0 -19.5 320 54 311.6 311.7 286.5 313.5 0.53 11 500 5710 -17.3 -31.3 28 14.0 -19.9 320 52 311.9 312.1 286.7 313.9 0.56 12 492 5831 -18.3 -38.3 16 20.0 -21.2 319 52 312.2 312.2 286.5 313.2 0.28 13 490 5861 -18.5 -37.5 17 19.0 -21.4 319 52 312.3 312.3 286.5 313.4 0.31 14 456 6395 -21.9 -42.9 13 21.0 -24.4 316 54 314.5 314.6 287.2 315.2 0.19 15 450 6493 -22.7 -38.7 22 16.0 -24.9 315 54 314.7 314.8 287.3 315.8 0.30 16 448 6525 -22.3 -29.3 53 7.0 -23.6 315 54 315.6 315.8 288.2 318.2 0.75 17 434 6758 -23.7 -27.8 69 4.1 -24.5 314 55 316.7 316.9 288.7 319.8 0.90 18 424 6928 -24.9 -28.1 75 3.2 -25.5 312 55 317.3 317.5 288.9 320.4 0.89 19 414 7102 -26.3 -34.3 47 8.0 -27.5 311 55 317.7 317.8 288.6 319.5 0.51 20 412 7137 -26.7 -44.7 17 18.0 -28.5 311 56 317.6 317.6 288.2 318.2 0.17 21 406 7243 -27.3 -40.3 28 13.0 -28.8 310 56 318.1 318.2 288.5 319.2 0.28 22 404 7278 -27.5 -51.5 8 24.0 -29.5 310 56 318.3 318.4 288.3 318.7 0.08 23 400 7350 -28.1 -50.1 10 22.0 -29.9 310 59 318.5 318.5 288.3 318.8 0.10 24 349 8318 -33.9 -57.9 7 24.0 -35.2 303 76 323.3 323.3 289.8 323.5 0.04 25 342 8461 -31.7 -57.7 6 26.0 -33.3 302 79 328.2 328.2 291.2 328.4 0.05 26 300 9380 -35.9 -62.9 5 27.0 -37.2 295 95 334.8 334.8 293.0 334.9 0.03 27 262 10310 -40.1 -67.1 4 27.0 -41.1 297 113 341.8 341.8 294.8 341.9 0.02 28 250 10630 -39.5 -68.5 3 29.0 -40.6 300 113 347.3 347.3 296.1 347.4 0.02 29 249 10657 -39.5 -67.5 4 28.0 -40.6 300 113 347.7 347.7 296.1 347.8 0.02 30 200 12130 -46.7 -75.7 2 29.0 -47.4 295 115 358.8 358.8 298.5 358.8 0.01 31 191 12434 -48.7 -77.0 2 28.3 -49.3 295 119 360.4 360.4 298.8 360.4 0.01 32 175 13005 -52.5 -79.5 2 27.0 -52.9 292 108 363.2 363.2 299.3 363.3 0.00 33 159 13625 -52.7 -80.7 2 28.0 -53.1 288 94 373.0 373.0 301.1 373.0 0.00 34 150 14000 -54.7 -83.7 2 29.0 -55.1 285 86 375.8 375.8 301.6 375.8 0.00 35 112 15831 -63.3 -85.3 4 22.0 -63.5 278 46 392.5 392.5 304.2 392.5 0.00 36 111 15886 -63.1 -86.1 3 23.0 -63.3 281 43 393.9 393.9 304.3 393.9 0.00 37 100 16520 -68.5 -87.5 5 19.0 -68.6 300 32 395.4 395.4 304.6 395.4 0.00 38 95 16825 -70.7 -87.7 6 17.0 -70.8 295 40 396.9 396.9 304.8 396.9 0.00 39 77 18064 -72.3 -90.3 5 18.0 -72.4 292 28 418.2 418.2 307.5 418.2 0.00 40 76 18141 -67.7 -88.7 3 21.0 -67.8 291 27 429.3 429.3 308.7 429.3 0.00 41 74 18303 -64.9 -87.9 3 23.0 -65.1 291 25 438.5 438.5 309.7 438.5 0.00 42 70 18640 -66.5 -88.5 3 22.0 -66.7 290 22 442.1 442.1 310.1 442.1 0.00 43 69 18727 -66.5 -88.5 3 22.0 -66.7 294 21 443.9 443.9 310.3 444.0 0.00 44 63 19283 -63.3 -88.3 2 25.0 -63.6 321 17 462.7 462.7 312.0 462.7 0.00 45 53 20343 -65.1 -88.1 3 23.0 -65.4 13 10 482.0 482.0 313.6 482.0 0.00 46 50 20700 -62.9 -87.9 2 25.0 -63.3 30 7 495.3 495.3 314.6 495.3 0.00 47 48 20952 -61.3 -88.3 2 27.0 -61.8 34 7 504.9 504.9 315.3 504.9 0.00 48 30 23900 -56.9 -86.9 1 30.0 -58.2 85 6 589.5 589.5 320.1 589.6 0.01 49 23 25599 -53.5 -86.5 1 33.0 -55.8 187 4 646.1 646.1 322.5 646.1 0.01 50 20 26510 -48.3 -84.3 1 36.0 -52.3 240 3 688.3 688.3 324.0 688.5 0.02 51 15 28402 -48.9 -83.9 1 35.0 -53.5 745.4 745.4 325.8 745.6 0.02 TRP 95 16825 -70.7 -87.7 6 17.0 -70.8 295 40 396.9 396.9 304.8 396.9 0.00 WND 191 12434 -48.7 -77.0 2 28.3 -49.3 295 119 360.4 360.4 298.8 360.4 0.01 Sounding variables and indices 1000-500 mb thick: 5601.00 m Freezing level: 693.83 mb = 3165.04 m = 10383.85 ft Wetbulb zero: 694.70 mb = 3152.48 m = 10342.64 ft Precipitable water: 1.26 inches Sfc-500 mean rel hum: 81.50 % Est. max temperature: 26.62 C = 79.91 F Sfc-Lift cond lev (LCL): 943.80 mb = 608.34 m = 1995.84 ft T: 18.91 C 700-500 lapse rate: 6.76 C/km ThetaE index: 4.97 C Layer 850.0- 700.0 mb Conv cond level (CCL): 815.73 mb = 1837.73 m = 6029.21 ft Mean mixing ratio: 9.24 g/kg Conv temperature: 27.41 C = 81.34 F Cap Strength: 2.53 C Lifted Index: -2.61 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 8.88 C Lifted Index @700 mb: -1.32 C Showalter Index: -1.76 C Risk: Thunderstorms probable Total Totals Index: 54.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.70 C Cross Totals Index: 24.70 C K Index: 37.00 Risk: > 80 % chance of thunderstorms Sweat Index: 286.80 Risk: None Energy Index: -1.54 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 279.82 J/kg Max Up Vert Vel: 23.66 m/s Conv Inhibition (B-): 77.07 J/kg Cap Strength: 2.53 C Lift Cond Lev (LCL): 856.16 mb = 1437.78 m = 4717.07 ft Lev Free Conv (LFC): 771.16 mb = 2300.32 m = 7546.88 ft Equ Level (EL): 371.16 mb = 7881.16 m = 25856.50 ft B at Equ Level: 276.55 J/kg Max Parcel Lev (MPL): 301.16 mb = 9352.95 m = 30685.17 ft Wind level data Storm motion: 341 at 22 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 1010 23 240 1 0.9 0.5 | 163 23 -6.4 21.7 1 1000 109 300 9 7.8 -4.5 | 182 17 0.5 16.7 2 944 610 295 27 24.5 -11.4 | 240 20 17.2 9.8 3 925 782 290 26 24.4 -8.9 | 234 21 17.1 12.3 4 911 914 290 25 23.5 -8.6 | 232 21 16.2 12.7 5 879 1219 285 25 24.1 -6.5 | 229 22 16.8 14.7 6 850 1499 290 19 17.9 -6.5 | 216 18 10.6 14.7 7 787 2134 295 18 16.3 -7.6 | 214 16 9.0 13.6 8 758 2438 315 16 11.3 -11.3 | 202 11 4.0 9.9 9 730 2743 325 17 9.8 -13.9 | 199 8 2.4 7.3 10 700 3092 330 22 11.0 -19.1 | 240 4 3.7 2.2 11 677 3353 335 23 9.7 -20.8 | 262 2 2.4 0.4 12 626 3962 325 24 13.8 -19.7 | 257 7 6.5 1.5 13 602 4267 315 34 24.0 -24.0 | 280 17 16.7 -2.8 14 579 4572 300 47 40.7 -23.5 | 274 33 33.4 -2.3 15 515 5486 320 57 36.6 -43.7 | 307 37 29.3 -22.5 16 500 5710 320 52 33.4 -39.8 | 305 32 26.1 -18.6 17 402 7315 310 56 42.9 -36.0 | 293 39 35.6 -14.8 18 400 7350 310 59 45.2 -37.9 | 294 41 37.9 -16.7 19 300 9380 295 95 86.1 -40.1 | 284 81 78.8 -18.9 20 272 10058 295 113 102.4 -47.8 | 286 99 95.1 -26.6 21 250 10630 300 113 97.9 -56.5 | 291 97 90.6 -35.3 22 227 11278 295 116 105.1 -49.0 | 286 102 97.8 -27.8 23 207 11887 295 105 95.2 -44.4 | 285 91 87.9 -23.2 24 200 12130 295 115 104.2 -48.6 | 286 101 96.9 -27.4 25 191 12434 295 119 107.9 -50.3 | 286 105 100.5 -29.1 26 189 12497 295 119 107.9 -50.3 | 286 105 100.5 -29.1 27 150 14000 285 86 83.1 -22.3 | 271 76 75.8 -1.1 28 129 14935 280 72 70.9 -12.5 | 262 64 63.6 8.7 29 123 15240 280 77 75.8 -13.4 | 263 69 68.5 7.8 30 117 15545 265 59 58.8 5.1 | 243 58 51.5 26.3 31 106 16154 295 30 27.2 -12.7 | 247 22 19.9 8.5 32 101 16459 300 28 24.2 -14.0 | 247 18 16.9 7.2 33 100 16520 300 32 27.7 -16.0 | 256 21 20.4 5.2 34 96 16764 300 32 27.7 -16.0 | 256 21 20.4 5.2 35 95 16825 295 40 36.3 -16.9 | 262 29 29.0 4.3 36 70 18640 290 22 20.7 -7.5 | 224 19 13.4 13.7 37 50 20700 30 7 -3.5 -6.1 | 144 19 -10.8 15.1 38 30 23900 85 6 -6.0 -0.5 | 147 25 -13.3 20.7 39 20 26510 240 3 2.6 1.5 | 168 23 -4.7 22.7 Wind Parameters Mean winds (0-6000m): 311.0 at 29.9 knts Storm direction: 341.0 at 22.4 knts Shear (0-3000m) pos: 3.9 neg: 0.6 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): 64.3 deg Storm rel helicity (0-3000m) pos: 107.6 neg: -58.6 tot: 49.0 m^2/s^2 ave: 16.3 10^-3 m/s^2 rel: 0.26 Storm rel vorticity (0-3000m) horiz: 9.2 stream: 2.3 10^-3/s Energy-Hel index: 0.18 Bulk Rich Number: 8.00 Bulk Shear: 34.96 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 ------------------------------------------------------------------------------- 500 297 14 201 16| 24.0 0.0 24.0| 91.5 0.0 91.5 182.9 0.87| 24.3 21.2 1000 293 20 220 17| 12.0 1.8 13.8|102.9 -17.5 85.4 85.4 0.64| 15.7 10.1 1500 291 21 222 18| 6.0 1.2 7.2|102.9 -46.2 56.7 37.8 0.37| 13.1 4.9 2000 291 20 220 18| 4.4 0.9 5.3|102.9 -48.4 54.5 27.3 0.35| 10.2 3.6 2500 293 20 219 17| 3.5 0.7 4.2|102.9 -57.7 45.2 18.1 0.24| 9.7 2.3 3000 298 19 219 15| 3.9 0.6 4.4|107.6 -58.6 49.0 16.3 0.26| 9.2 2.3 4000 308 20 226 12| 3.2 1.0 4.2|112.2 -59.0 53.2 13.3 0.27| 8.0 2.2 5000 308 25 244 14| 3.5 3.0 6.5|199.9 -71.6 128.3 25.7 0.27| 10.0 2.7 6000 311 30 264 15| 3.7 2.5 6.1|298.6 -93.7 204.9 34.1 0.30| 9.8 2.9 Wrote GIF file: /home/apache/climate/data/raob//Y4775/skewt/Y4775.skewt.20250420.23.gif