UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042812.upa.cvt Date: 1200Z 28 APR 25 Searching for VH004... Searching the city database file for: VH004 ... Date:1200Z 28 APR 25 Station: VH004 WMO ident: 45004 Latitude: 22.32 Longitude: 114.17 ------------------------------------------------------------------------------- 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 1004 65 24.6 22.3 87 2.3 23.0 0 0 297.4 300.5 296.0 347.0 17.12 1 1000 100 25.6 21.0 76 4.6 22.3 30 1 298.8 301.6 295.5 344.9 15.85 2 960 459 24.2 19.2 74 5.0 20.7 43 12 300.8 303.5 295.3 344.1 14.74 3 925 784 21.2 18.3 84 2.9 19.2 40 15 301.0 303.6 295.1 343.5 14.46 4 857 1442 16.2 16.1 99 0.1 16.1 19 17 302.4 304.9 294.9 342.5 13.55 5 854 1472 16.2 16.2 100 0.0 16.2 17 17 302.7 305.2 295.1 343.2 13.69 6 850 1512 16.0 16.0 100 0.0 16.0 15 17 302.9 305.4 295.1 343.1 13.58 7 700 3149 8.8 8.5 98 0.3 8.6 305 3 312.2 314.1 295.1 343.1 10.01 8 611 4267 3.6 3.6 100 0.0 3.6 326 5 318.6 320.2 295.4 344.5 8.15 9 544 5203 -2.1 -2.1 100 0.0 -2.1 314 15 322.6 323.8 294.8 342.2 6.04 10 500 5870 -6.1 -8.5 83 2.4 -7.2 290 17 325.6 326.4 294.1 339.0 4.03 11 474 6285 -8.9 -13.9 67 5.0 -10.8 284 18 327.1 327.7 293.4 336.5 2.76 12 471 6334 -9.1 -13.6 70 4.5 -10.9 282 18 327.5 328.1 293.6 337.2 2.84 13 468 6383 -8.9 -16.9 52 8.0 -11.8 281 18 328.3 328.8 293.3 335.9 2.18 14 455 6600 -10.3 -14.7 70 4.4 -12.0 274 17 329.2 329.8 293.9 338.5 2.69 15 450 6685 -10.7 -19.7 48 9.0 -13.7 271 17 329.8 330.1 293.3 336.0 1.78 16 446 6753 -11.3 -15.1 73 3.8 -12.8 271 17 329.9 330.4 294.1 339.0 2.65 17 435 6944 -11.9 -17.9 61 6.0 -14.0 276 17 331.5 331.9 294.1 339.0 2.15 18 423 7157 -13.5 -15.6 84 2.1 -14.3 281 17 332.1 332.6 294.7 341.4 2.68 19 400 7580 -15.7 -19.4 73 3.7 -16.9 265 15 334.6 335.0 294.8 341.9 2.06 20 346 8660 -22.5 -25.8 74 3.3 -23.4 275 25 339.5 339.8 295.4 344.5 1.35 21 300 9690 -30.7 -33.1 79 2.4 -31.1 275 31 342.1 342.3 295.6 345.1 0.78 22 258 10744 -39.3 -42.7 70 3.4 -39.6 271 37 344.5 344.6 295.7 345.9 0.34 23 250 10960 -40.5 -45.5 59 5.0 -40.9 270 38 345.9 345.9 296.0 346.9 0.26 24 234 11407 -43.3 -49.3 52 6.0 -43.7 269 40 348.2 348.3 296.4 349.0 0.18 25 216 11939 -48.3 -52.4 62 4.1 -48.5 271 44 348.5 348.6 296.4 349.1 0.14 26 200 12440 -52.3 -58.3 48 6.0 -52.5 265 46 349.9 350.0 296.7 350.3 0.07 27 181 13078 -57.3 -63.3 46 6.0 -57.4 269 45 351.9 351.9 297.1 352.1 0.04 28 175 13290 -58.7 -69.7 23 11.0 -58.9 272 47 353.0 353.0 297.3 353.1 0.02 29 150 14240 -66.5 -73.5 37 7.0 -66.5 285 52 355.5 355.5 297.8 355.6 0.01 30 142 14570 -69.1 -75.1 41 6.0 -69.1 284 52 356.6 356.6 298.0 356.6 0.01 31 110 16064 -77.7 -83.7 37 6.0 -77.7 274 42 367.4 367.4 300.1 367.5 0.00 32 102 16496 -77.5 -84.5 32 7.0 -77.5 271 39 375.9 375.9 301.6 375.9 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5770.00 m Freezing level: 568.68 mb = 4857.96 m = 15938.01 ft Wetbulb zero: 568.63 mb = 4845.92 m = 15898.50 ft Precipitable water: 2.35 inches Sfc-500 mean rel hum: 94.83 % Est. max temperature: 29.91 C = 85.83 F Sfc-Lift cond lev (LCL): 971.27 mb = 356.71 m = 1170.30 ft T: 24.60 C 700-500 lapse rate: 5.48 C/km ThetaE index: 4.55 C Layer 1000.0- 854.0 mb Conv cond level (CCL): 880.77 mb = 1206.18 m = 3957.24 ft Mean mixing ratio: 14.88 g/kg Conv temperature: 29.10 C = 84.38 F Cap Strength: 1.04 C Lifted Index: -0.96 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.98 C Lifted Index @700 mb: -0.13 C Showalter Index: -0.55 C Risk: Thunderstorms probable Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.10 C Cross Totals Index: 22.10 C K Index: 37.80 Risk: > 80 % chance of thunderstorms Sweat Index: 243.00 Risk: None Energy Index: -0.87 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 97.24 J/kg Max Up Vert Vel: 13.95 m/s Conv Inhibition (B-): 16.69 J/kg Cap Strength: 1.04 C Lift Cond Lev (LCL): 899.89 mb = 1021.20 m = 3350.34 ft Lev Free Conv (LFC): 864.89 mb = 1363.04 m = 4471.86 ft Equ Level (EL): 634.89 mb = 3951.68 m = 12964.66 ft B at Equ Level: 25.72 J/kg Max Parcel Lev (MPL): 264.89 mb = 10560.25 m = 34646.05 ft Wind level data Storm motion: 11 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 1004 65 0 0 -0.0 -0.0 | 191 8 1.4 7.5 1 1000 100 30 1 -0.5 -0.9 | 188 7 0.9 6.6 2 977 305 40 9 -5.8 -6.9 | 98 4 -4.4 0.6 3 944 610 45 15 -10.6 -10.6 | 71 10 -9.2 -3.1 4 925 784 40 15 -9.6 -11.5 | 64 9 -8.2 -4.0 5 911 914 35 15 -8.6 -12.3 | 56 9 -7.2 -4.8 6 879 1219 30 17 -8.5 -14.7 | 44 10 -7.1 -7.2 7 850 1512 15 17 -4.4 -16.4 | 18 9 -3.0 -8.9 8 819 1829 355 13 1.1 -13.0 | 335 6 2.6 -5.5 9 790 2134 10 7 -1.2 -6.9 | 200 1 0.2 0.6 10 762 2438 330 11 5.5 -9.5 | 286 7 6.9 -2.0 11 735 2743 340 9 3.1 -8.5 | 282 5 4.5 -1.0 12 708 3048 285 9 8.7 -2.3 | 243 11 10.1 5.2 13 700 3149 305 3 2.5 -1.7 | 214 7 3.9 5.8 14 657 3658 285 3 2.9 -0.8 | 213 8 4.3 6.7 15 633 3962 335 1 0.4 -0.9 | 196 7 1.9 6.6 16 587 4572 315 9 6.4 -6.4 | 262 8 7.8 1.1 17 565 4877 315 9 6.4 -6.4 | 262 8 7.8 1.1 18 544 5182 315 15 10.6 -10.6 | 285 12 12.0 -3.1 19 524 5486 290 13 12.2 -4.4 | 257 14 13.6 3.0 20 500 5870 290 17 16.0 -5.8 | 265 17 17.4 1.7 21 485 6096 290 19 17.9 -6.5 | 267 19 19.3 1.0 22 448 6706 270 17 17.0 -0.0 | 248 20 18.4 7.5 23 414 7315 285 17 16.4 -4.4 | 260 18 17.9 3.1 24 400 7580 265 15 14.9 1.3 | 242 19 16.4 8.8 25 398 7620 265 15 14.9 1.3 | 242 19 16.4 8.8 26 382 7925 275 21 20.9 -1.8 | 256 23 22.4 5.7 27 300 9690 275 31 30.9 -2.7 | 262 33 32.3 4.8 28 250 10960 270 38 38.0 -0.0 | 259 40 39.4 7.5 29 238 11278 265 38 37.9 3.3 | 255 41 39.3 10.8 30 228 11582 275 42 41.8 -3.7 | 265 43 43.3 3.8 31 200 12440 265 46 45.8 4.0 | 256 49 47.3 11.5 32 189 12802 265 44 43.8 3.8 | 256 47 45.3 11.3 33 150 14240 285 52 50.2 -13.5 | 277 52 51.7 -6.0 34 148 14326 285 54 52.2 -14.0 | 277 54 53.6 -6.5 35 98 16764 270 38 38.0 -0.0 | 259 40 39.4 7.5 Wind Parameters Mean winds (0-6000m): 340.8 at 10.2 knts Storm direction: 10.8 at 7.6 knts Shear (0-3000m) pos: 2.4 neg: 3.3 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 50.3 deg Storm rel helicity (0-3000m) pos: 0.4 neg: -58.6 tot: -58.2 m^2/s^2 ave: -19.4 10^-3 m/s^2 rel: -0.59 Storm rel vorticity (0-3000m) horiz: 9.1 stream: -5.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 8.30 Bulk Shear: 11.71 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 42 8 110 4| 14.5 0.0 14.5| 0.0 -11.8 -11.8 -23.7 -0.68| 14.9-10.1 1000 40 12 76 6| 7.3 1.8 9.1| 0.0 -20.4 -20.4 -20.4 -0.72| 9.6 -6.9 1500 33 13 58 7| 4.8 3.0 7.9| 0.0 -36.2 -36.2 -24.2 -0.78| 8.7 -6.8 2000 26 13 44 6| 3.6 2.3 6.0| 0.2 -44.8 -44.7 -22.3 -0.69| 9.1 -6.3 2500 20 12 33 5| 2.9 2.9 5.9| 0.4 -46.2 -45.7 -18.3 -0.57| 9.1 -5.2 3000 13 12 17 4| 2.4 3.3 5.7| 0.4 -58.6 -58.2 -19.4 -0.59| 9.1 -5.3 4000 8 10 358 2| 2.4 2.4 4.9| 2.2 -71.5 -69.3 -17.3 -0.58| 8.1 -4.7 5000 358 9 314 2| 2.0 2.6 4.6| 17.7 -71.5 -53.8 -10.8 -0.38| 7.6 -2.9 6000 341 10 294 5| 1.6 2.9 4.5| 30.8 -91.0 -60.2 -10.0 -0.35| 7.5 -2.6 Wrote GIF file: /home/apache/climate/data/raob//VH004/skewt/VH004.skewt.20250428.12.gif