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 VH004... Searching the city database file for: VH004 ... Date:1200Z 18 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 1001 67 25.2 23.8 92 1.4 24.2 150 9 298.3 301.7 297.3 353.2 18.86 1 1000 76 25.2 23.7 91 1.5 24.1 170 1 298.4 301.8 297.3 353.0 18.76 2 925 761 21.8 20.0 90 1.8 20.5 210 13 301.6 304.6 296.4 349.1 16.11 3 850 1492 17.8 17.8 100 0.0 17.8 215 21 304.8 307.6 296.7 350.3 15.26 4 849 1502 17.6 17.6 100 0.0 17.6 217 20 304.7 307.5 296.5 349.7 15.09 5 832 1676 19.2 16.4 84 2.8 17.2 224 20 308.1 310.8 296.9 351.2 14.25 6 759 2463 16.6 6.6 52 10.0 10.4 221 19 313.5 315.1 294.0 338.7 8.08 7 700 3149 12.4 4.4 58 8.0 7.6 255 23 316.2 317.7 294.3 339.9 7.51 8 577 4739 0.6 0.0 96 0.6 0.3 254 25 320.4 321.7 294.7 341.7 6.65 9 548 5153 -1.7 -3.1 90 1.4 -2.4 250 23 322.4 323.5 294.4 340.5 5.56 10 525 5494 -2.9 -12.9 46 10.0 -7.0 248 22 324.9 325.5 292.8 334.1 2.70 11 500 5880 -5.9 -7.0 92 1.1 -6.4 240 23 325.8 326.7 294.6 340.9 4.53 12 496 5943 -6.3 -6.3 100 0.0 -6.3 239 24 326.1 327.1 294.8 342.1 4.82 13 400 7590 -16.5 -17.7 90 1.2 -16.9 245 33 333.5 334.0 294.8 341.9 2.38 14 380 7975 -18.7 -19.9 90 1.2 -19.1 251 41 335.6 336.0 295.0 342.9 2.08 15 361 8357 -21.3 -24.1 78 2.8 -22.1 257 45 337.1 337.4 294.9 342.5 1.51 16 340 8797 -24.7 -25.5 93 0.8 -24.9 260 46 338.2 338.5 295.1 343.4 1.41 17 300 9700 -30.7 -35.7 61 5.0 -31.5 260 52 342.1 342.2 295.4 344.5 0.61 18 272 10389 -35.7 -43.7 44 8.0 -36.5 263 52 344.6 344.6 295.7 345.8 0.29 19 250 10970 -41.1 -45.4 63 4.3 -41.5 265 52 345.0 345.0 295.7 346.0 0.26 20 245 11107 -42.3 -45.1 74 2.8 -42.5 266 53 345.2 345.2 295.8 346.3 0.28 21 240 11246 -43.1 -50.1 46 7.0 -43.6 266 55 346.0 346.0 295.9 346.7 0.16 22 235 11387 -44.3 -49.3 57 5.0 -44.6 267 56 346.3 346.3 296.0 347.0 0.18 23 232 11473 -44.7 -61.7 13 17.0 -45.3 267 57 346.9 347.0 296.0 347.1 0.04 24 220 11826 -47.1 -55.1 40 8.0 -47.4 269 60 348.6 348.6 296.4 349.0 0.10 25 213 12039 -48.6 -60.3 24 11.7 -49.0 270 62 349.5 349.5 296.5 349.7 0.05 26 200 12450 -51.5 -70.5 9 19.0 -51.9 270 60 351.2 351.2 296.9 351.3 0.01 27 190 12781 -53.5 -75.5 5 22.0 -53.8 270 58 353.2 353.2 297.3 353.2 0.01 28 151 14219 -64.5 -78.5 13 14.0 -64.6 270 46 358.3 358.3 298.4 358.3 0.01 29 150 14260 -64.3 -79.3 11 15.0 -64.4 270 46 359.3 359.3 298.5 359.3 0.00 30 115 15843 -74.9 -83.9 23 9.0 -74.9 285 35 368.0 368.0 300.2 368.0 0.00 31 100 16650 -77.1 -87.1 19 10.0 -77.1 260 21 378.8 378.8 302.1 378.8 0.00 32 87 17436 -81.9 -88.9 29 7.0 -81.9 239 19 384.5 384.5 302.9 384.5 0.00 33 80 17908 -79.1 -89.1 18 10.0 -79.1 270 19 399.6 399.6 305.2 399.6 0.00 34 70 18660 -81.3 -90.3 20 9.0 -81.3 305 9 410.5 410.5 306.6 410.5 0.00 35 69 18741 -81.5 -90.5 20 9.0 -81.5 305 9 411.7 411.7 306.7 411.7 0.00 36 68 18823 -78.1 -89.1 15 11.0 -78.1 305 9 420.8 420.8 307.8 420.8 0.00 37 64 19171 -77.1 -89.1 13 12.0 -77.1 268 5 430.3 430.3 308.9 430.3 0.00 38 62 19353 -77.7 -89.7 13 12.0 -77.7 246 6 432.9 432.9 309.1 432.9 0.00 TRP WND 213 12039 -48.6 -60.3 24 11.7 -49.0 270 62 349.5 349.5 296.5 349.7 0.05 Sounding variables and indices 1000-500 mb thick: 5804.00 m Freezing level: 569.43 mb = 4847.21 m = 15902.72 ft Wetbulb zero: 574.27 mb = 4777.43 m = 15673.79 ft Precipitable water: 2.29 inches Sfc-500 mean rel hum: 77.40 % Est. max temperature: 31.69 C = 89.03 F Sfc-Lift cond lev (LCL): 981.25 mb = 242.34 m = 795.08 ft T: 24.37 C 700-500 lapse rate: 6.70 C/km ThetaE index: 12.54 C Layer 759.0- 700.0 mb Conv cond level (CCL): 900.10 mb = 996.93 m = 3270.73 ft Mean mixing ratio: 17.09 g/kg Conv temperature: 29.57 C = 85.22 F Cap Strength: 2.81 C Lifted Index: -3.20 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.71 C Lifted Index @700 mb: 1.60 C Showalter Index: -3.05 C Risk: Severe thunderstorms possible Total Totals Index: 47.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 23.70 C K Index: 33.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 356.43 Risk: Showers and thunderstorms possible Energy Index: -1.89 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 858.39 J/kg Max Up Vert Vel: 41.43 m/s Conv Inhibition (B-): 10.96 J/kg Cap Strength: 2.79 C Lift Cond Lev (LCL): 928.64 mb = 726.50 m = 2383.49 ft Lev Free Conv (LFC): 853.64 mb = 1455.06 m = 4773.78 ft Equ Level (EL): 843.64 mb = 1556.52 m = 5106.64 ft B at Equ Level: 12.30 J/kg Max Parcel Lev (MPL): 823.64 mb = 1762.52 m = 5782.47 ft Wind level data Storm motion: 269 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 1001 67 150 9 -4.5 7.8 | 110 21 -20.1 7.4 1 1000 76 170 1 -0.2 1.0 | 92 16 -15.8 0.6 2 974 305 175 15 -1.3 14.9 | 131 22 -16.9 14.5 3 941 610 210 11 5.5 9.5 | 132 14 -10.1 9.1 4 925 761 210 13 6.5 11.3 | 140 14 -9.1 10.9 5 909 914 220 15 9.6 11.5 | 152 13 -6.0 11.1 6 877 1219 200 19 6.5 17.9 | 152 20 -9.1 17.5 7 850 1492 215 21 12.0 17.2 | 168 17 -3.6 16.8 8 847 1524 220 19 12.2 14.6 | 167 15 -3.4 14.2 9 788 2134 235 23 18.8 13.2 | 194 13 3.2 12.8 10 761 2438 220 19 12.2 14.6 | 167 15 -3.4 14.2 11 700 3149 255 23 22.2 6.0 | 230 9 6.6 5.5 12 683 3353 260 25 24.6 4.3 | 246 10 9.0 3.9 13 657 3658 255 21 20.3 5.4 | 223 7 4.7 5.0 14 610 4267 245 27 24.5 11.4 | 219 14 8.9 11.0 15 587 4572 255 25 24.1 6.5 | 235 10 8.6 6.1 16 506 5791 245 21 19.0 8.9 | 202 9 3.4 8.5 17 500 5880 240 23 19.9 11.5 | 201 12 4.3 11.1 18 486 6096 235 25 20.5 14.3 | 199 15 4.9 13.9 19 431 7010 235 29 23.8 16.6 | 207 18 8.2 16.2 20 400 7590 245 33 29.9 13.9 | 227 20 14.3 13.5 21 367 8230 255 46 44.4 11.9 | 248 31 28.8 11.5 22 352 8534 260 44 43.3 7.6 | 255 29 27.7 7.2 23 300 9700 260 52 51.2 9.0 | 256 37 35.6 8.6 24 250 10970 265 52 51.8 4.5 | 263 36 36.2 4.1 25 213 12039 270 62 62.0 -0.0 | 270 46 46.4 -0.4 26 208 12192 270 62 62.0 -0.0 | 270 46 46.4 -0.4 27 200 12450 270 60 60.0 -0.0 | 271 44 44.4 -0.4 28 150 14260 270 46 46.0 -0.0 | 271 30 30.4 -0.4 29 134 14935 270 40 40.0 -0.0 | 271 24 24.4 -0.4 30 103 16459 295 31 28.1 -13.1 | 317 18 12.5 -13.5 31 100 16650 260 21 20.7 3.6 | 237 6 5.1 3.2 32 98 16764 260 21 20.7 3.6 | 237 6 5.1 3.2 33 88 17374 235 19 15.6 10.9 | 180 10 -0.0 10.5 34 79 17983 275 19 18.9 -1.7 | 302 4 3.3 -2.1 35 75 18288 275 19 18.9 -1.7 | 302 4 3.3 -2.1 36 70 18660 305 9 7.4 -5.2 | 56 10 -8.2 -5.6 37 67 18898 305 9 7.4 -5.2 | 56 10 -8.2 -5.6 38 63 19202 255 3 2.9 0.8 | 92 13 -12.7 0.4 39 59 19507 220 15 9.6 11.5 | 152 13 -6.0 11.1 Wind Parameters Mean winds (0-6000m): 238.5 at 20.8 knts Storm direction: 268.5 at 15.6 knts Shear (0-3000m) pos: 5.1 neg: 0.7 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 109.3 deg Storm rel helicity (0-3000m) pos: 131.7 neg: -21.4 tot: 110.3 m^2/s^2 ave: 36.8 10^-3 m/s^2 rel: 0.46 Storm rel vorticity (0-3000m) horiz: 10.1 stream: 4.7 10^-3/s Energy-Hel index: 0.55 Bulk Rich Number: 22.04 Bulk Shear: 38.95 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 ------------------------------------------------------------------------------- 500 183 11 124 18| 10.1 0.0 10.1| 41.6 -0.8 40.8 81.6 0.44| 18.6 8.2 1000 200 12 134 16| 7.6 0.0 7.6| 59.3 -0.8 58.5 58.5 0.49| 13.4 6.6 1500 204 15 143 16| 6.3 0.0 6.3| 82.3 -1.5 80.8 53.9 0.48| 12.6 6.0 2000 212 16 152 15| 6.0 0.0 6.0|102.2 -1.5 100.7 50.4 0.54| 10.9 5.9 2500 216 17 158 15| 4.8 0.8 5.6|107.5 -21.4 86.1 34.4 0.38| 10.2 3.9 3000 221 18 163 14| 5.1 0.7 5.7|131.7 -21.4 110.3 36.8 0.46| 10.1 4.7 4000 232 19 177 12| 3.9 0.6 4.5|141.5 -29.3 112.2 28.1 0.39| 9.3 3.6 5000 237 20 188 11| 3.2 0.7 3.9|152.2 -36.6 115.6 23.1 0.35| 8.4 2.9 6000 239 21 192 11| 2.7 1.1 3.8|152.2 -46.5 105.7 17.6 0.27| 7.8 2.1 Wrote GIF file: /home/apache/climate/data/raob//VH004/skewt/VH004.skewt.20250418.12.gif