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 VH004... Searching the city database file for: VH004 ... Date:0000Z 23 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 1003 65 26.4 23.7 85 2.7 24.5 0 0 299.3 302.7 297.5 354.0 18.70 1 1000 91 26.2 23.3 84 2.9 24.1 280 1 299.4 302.7 297.3 352.9 18.30 2 925 775 20.8 19.9 95 0.9 20.2 245 13 300.6 303.5 296.1 347.6 16.01 3 895 1060 18.6 18.3 98 0.3 18.4 243 17 301.2 303.9 295.6 345.1 14.95 4 888 1128 22.8 11.8 50 11.0 15.7 241 18 306.2 308.0 293.3 335.8 9.84 5 884 1168 23.0 11.0 47 12.0 15.3 241 18 306.8 308.5 293.1 335.1 9.36 6 881 1197 23.0 11.0 47 12.0 15.3 240 19 307.1 308.8 293.2 335.5 9.40 7 861 1397 21.2 17.9 81 3.3 18.9 249 19 307.2 310.1 297.3 352.9 15.16 8 850 1509 20.8 15.8 73 5.0 17.4 255 19 307.9 310.4 296.3 348.4 13.40 9 717 2961 12.2 2.2 50 10.0 6.5 266 24 313.8 315.0 292.7 333.5 6.27 10 709 3055 12.2 -6.8 26 19.0 3.1 266 25 314.8 315.5 290.3 325.3 3.24 11 708 3067 12.2 -6.8 26 19.0 3.1 265 25 315.0 315.6 290.4 325.4 3.24 12 700 3162 11.0 2.0 54 9.0 5.9 265 25 314.7 315.9 292.9 334.6 6.33 13 699 3174 11.0 2.0 54 9.0 5.9 265 25 314.8 316.0 293.0 334.8 6.34 14 677 3440 8.8 1.8 61 7.0 4.9 260 25 315.2 316.5 293.2 335.6 6.45 15 670 3526 8.2 3.2 71 5.0 5.3 258 25 315.5 316.9 293.9 338.2 7.21 16 641 3889 5.4 -0.6 65 6.0 2.2 257 25 316.3 317.4 292.9 334.5 5.72 17 635 3966 5.0 -9.0 36 14.0 -1.3 258 25 316.7 317.3 290.7 326.7 3.05 18 631 4018 4.4 0.4 75 4.0 2.2 259 25 316.6 317.8 293.4 336.5 6.26 19 629 4044 4.0 -0.8 71 4.8 1.4 259 25 316.4 317.6 293.0 334.7 5.75 20 606 4346 3.0 -12.0 32 15.0 -3.3 262 25 318.7 319.2 290.9 327.0 2.51 21 599 4440 2.2 -5.8 55 8.0 -1.6 263 25 318.8 319.6 292.3 332.3 4.14 22 590 4562 1.8 -16.2 25 18.0 -5.0 265 25 319.7 320.1 290.5 325.9 1.83 23 581 4686 0.8 -9.2 47 10.0 -3.7 263 25 320.0 320.6 291.9 330.8 3.28 24 535 5346 -2.1 -23.1 18 21.0 -8.8 254 26 324.1 324.4 291.2 328.1 1.11 25 513 5678 -4.7 -14.7 45 10.0 -8.6 262 28 324.9 325.4 292.5 333.0 2.38 26 500 5880 -5.9 -17.9 38 12.0 -10.2 270 27 325.8 326.2 292.3 332.3 1.87 27 442 6830 -12.9 -28.9 25 16.0 -16.9 257 28 328.7 328.9 292.2 331.6 0.79 28 422 7183 -11.9 -41.9 6 30.0 -17.4 248 29 334.4 334.4 293.1 335.3 0.23 29 400 7590 -14.3 -46.3 5 32.0 -19.4 275 29 336.4 336.4 293.6 337.0 0.15 30 372 8138 -17.3 -49.3 4 32.0 -21.8 279 32 339.5 339.5 294.3 339.9 0.12 31 338 8849 -23.1 -55.1 4 32.0 -26.4 277 30 341.0 341.0 294.6 341.3 0.06 32 300 9710 -30.5 -58.5 5 28.0 -32.6 275 27 342.4 342.4 295.0 342.6 0.05 33 291 9926 -32.1 -61.1 4 29.0 -34.0 271 27 343.1 343.1 295.1 343.3 0.04 34 288 9999 -32.3 -41.3 40 9.0 -33.4 272 27 343.8 343.9 295.6 345.3 0.36 35 286 10048 -32.7 -39.7 50 7.0 -33.6 272 27 344.0 344.0 295.7 345.6 0.42 36 269 10477 -36.7 -38.6 82 1.9 -37.0 276 27 344.2 344.3 295.8 346.2 0.51 37 266 10554 -37.5 -39.6 81 2.1 -37.7 276 27 344.2 344.2 295.7 346.0 0.46 38 250 10980 -40.3 -45.0 61 4.7 -40.7 280 27 346.2 346.2 296.0 347.3 0.28 39 247 11062 -40.7 -48.7 42 8.0 -41.3 281 28 346.8 346.8 296.1 347.5 0.19 40 241 11228 -41.9 -46.6 60 4.7 -42.3 282 29 347.4 347.4 296.3 348.4 0.24 41 228 11600 -44.7 -52.7 40 8.0 -45.2 285 33 348.7 348.7 296.4 349.2 0.13 42 220 11837 -46.5 -52.5 50 6.0 -46.8 277 27 349.5 349.5 296.7 350.0 0.13 43 201 12428 -51.5 -58.5 43 7.0 -51.7 278 21 350.7 350.7 296.8 351.0 0.07 44 200 12460 -51.5 -58.5 43 7.0 -51.7 280 21 351.2 351.2 297.0 351.5 0.07 45 196 12591 -51.7 -68.7 11 17.0 -52.1 282 22 352.9 352.9 297.3 353.0 0.02 46 194 12658 -52.3 -67.3 15 15.0 -52.7 283 22 353.0 353.0 297.3 353.1 0.02 47 161 13842 -60.5 -78.5 8 18.0 -60.7 278 19 358.5 358.5 298.4 358.5 0.01 48 150 14280 -63.7 -80.7 8 17.0 -63.8 290 15 360.3 360.3 298.8 360.4 0.00 49 118 15713 -74.9 -81.9 33 7.0 -74.9 306 16 365.3 365.3 299.7 365.3 0.00 50 106 16329 -78.9 -82.4 56 3.5 -78.9 231 9 369.1 369.1 300.4 369.1 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5789.00 m Freezing level: 568.31 mb = 4868.15 m = 15971.43 ft Wetbulb zero: 637.20 mb = 3937.84 m = 12919.25 ft Precipitable water: 1.83 inches Sfc-500 mean rel hum: 58.32 % Est. max temperature: 34.85 C = 94.74 F Sfc-Lift cond lev (LCL): 964.83 mb = 405.10 m = 1329.04 ft T: 23.72 C 700-500 lapse rate: 6.22 C/km ThetaE index: 27.62 C Layer 850.0- 708.0 mb Conv cond level (CCL): 923.59 mb = 788.16 m = 2585.78 ft Mean mixing ratio: 16.84 g/kg Conv temperature: 27.71 C = 81.88 F Cap Strength: 4.11 C Lifted Index: -2.81 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.87 C Lifted Index @700 mb: 0.55 C Showalter Index: -2.40 C Risk: Severe thunderstorms possible Total Totals Index: 48.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.70 C Cross Totals Index: 21.70 C K Index: 33.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 254.60 Risk: None Energy Index: -3.13 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 531.04 J/kg Max Up Vert Vel: 32.59 m/s Conv Inhibition (B-): 0.53 J/kg Cap Strength: 4.05 C Lift Cond Lev (LCL): 930.27 mb = 725.13 m = 2379.01 ft Lev Free Conv (LFC): 915.27 mb = 866.40 m = 2842.47 ft Equ Level (EL): 895.27 mb = 1057.41 m = 3469.15 ft B at Equ Level: 5.17 J/kg Max Parcel Lev (MPL): 885.27 mb = 1155.03 m = 3789.43 ft Wind level data Storm motion: 290 at 16 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 1003 65 0 0 -0.0 -0.0 | 110 16 -15.2 5.5 1 1000 91 280 1 1.0 -0.2 | 111 15 -14.2 5.4 2 976 305 240 5 4.3 2.5 | 126 14 -10.9 8.0 3 943 610 245 13 11.8 5.5 | 163 12 -3.4 11.0 4 925 775 245 13 11.8 5.5 | 163 12 -3.4 11.0 5 910 914 245 15 13.6 6.3 | 172 12 -1.6 11.9 6 879 1219 240 19 16.5 9.5 | 185 15 1.2 15.0 7 850 1509 255 19 18.4 4.9 | 197 11 3.1 10.4 8 819 1829 270 19 19.0 -0.0 | 214 7 3.8 5.5 9 790 2134 270 21 21.0 -0.0 | 226 8 5.8 5.5 10 700 3162 265 25 24.9 2.2 | 232 12 9.7 7.7 11 658 3658 255 25 24.1 6.5 | 217 15 8.9 12.0 12 588 4572 265 25 24.9 2.2 | 232 12 9.7 7.7 13 545 5182 250 25 23.5 8.6 | 210 16 8.3 14.1 14 506 5791 265 29 28.9 2.5 | 240 16 13.7 8.1 15 500 5880 270 27 27.0 -0.0 | 245 13 11.8 5.5 16 486 6096 275 27 26.9 -2.4 | 255 12 11.7 3.2 17 415 7315 245 29 26.3 12.3 | 212 21 11.1 17.8 18 400 7590 275 29 28.9 -2.5 | 258 14 13.7 3.0 19 382 7925 280 33 32.5 -5.7 | 271 17 17.3 -0.2 20 300 9710 275 27 26.9 -2.4 | 255 12 11.7 3.2 21 298 9754 270 27 27.0 -0.0 | 245 13 11.8 5.5 22 250 10980 280 27 26.6 -4.7 | 266 11 11.4 0.8 23 228 11582 285 33 31.9 -8.5 | 280 17 16.7 -3.0 24 208 12192 265 19 18.9 1.7 | 207 8 3.7 7.2 25 200 12460 280 21 20.7 -3.6 | 251 6 5.5 1.9 26 181 13106 290 25 23.5 -8.6 | 290 9 8.3 -3.0 27 156 14021 275 17 16.9 -1.5 | 203 4 1.7 4.0 28 150 14280 290 15 14.1 -5.1 | 109 1 -1.1 0.4 29 141 14630 290 17 16.0 -5.8 | 291 1 0.8 -0.3 30 134 14935 260 17 16.7 3.0 | 190 9 1.5 8.5 31 121 15545 300 17 14.7 -8.5 | 9 3 -0.5 -3.0 32 115 15850 310 15 11.5 -9.6 | 42 6 -3.7 -4.1 33 110 16154 295 13 11.8 -5.5 | 91 3 -3.4 0.0 34 104 16459 200 7 2.4 6.6 | 133 18 -12.8 12.1 Wind Parameters Mean winds (0-6000m): 260.0 at 21.6 knts Storm direction: 290.0 at 16.2 knts Shear (0-3000m) pos: 1.6 neg: 3.7 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 121.4 deg Storm rel helicity (0-3000m) pos: 76.1 neg: 0.0 tot: 76.1 m^2/s^2 ave: 25.4 10^-3 m/s^2 rel: 0.70 Storm rel vorticity (0-3000m) horiz: 6.0 stream: 4.2 10^-3/s Energy-Hel index: 0.24 Bulk Rich Number: 15.30 Bulk Shear: 34.72 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 ------------------------------------------------------------------------------- 500 244 6 128 13| 0.0 12.2 12.2| 35.8 0.0 35.8 71.6 0.86| 12.6 10.8 1000 244 10 147 12| 0.0 8.7 8.7| 50.8 0.0 50.8 50.8 0.87| 9.0 7.8 1500 245 13 162 11| 1.8 5.8 7.6| 66.2 0.0 66.2 44.1 0.80| 8.5 6.8 2000 253 15 172 10| 2.5 4.4 6.8| 73.4 0.0 73.4 36.7 0.76| 7.8 6.0 2500 257 16 182 9| 2.0 4.0 5.9| 75.2 0.0 75.2 30.1 0.74| 6.7 4.9 3000 259 17 191 9| 1.6 3.7 5.3| 76.1 0.0 76.1 25.4 0.70| 6.0 4.2 4000 259 19 202 10| 1.4 3.0 4.3| 82.0 -12.5 69.4 17.4 0.54| 5.3 2.9 5000 260 20 208 10| 1.3 2.7 4.0| 88.7 -28.0 60.7 12.1 0.41| 5.0 2.1 6000 260 22 213 11| 1.9 2.2 4.1|133.5 -31.5 101.9 17.0 0.48| 5.4 2.6 Wrote GIF file: /home/apache/climate/data/raob//VH004/skewt/VH004.skewt.20250423.00.gif