UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042500.upa.cvt Date: 0000Z 25 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 25 APR 25 Station: VVNB WMO ident: 48820 Latitude: 21.02 Longitude: 105.80 Elevation: 6.00 ------------------------------------------------------------------------------- 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 1013 6 23.0 21.3 90 1.7 21.8 330 5 295.1 297.9 294.5 340.8 15.94 1 1000 115 22.0 20.7 92 1.3 21.1 340 7 295.1 297.9 294.3 339.7 15.55 2 947 587 18.6 18.6 100 0.0 18.6 11 11 296.3 298.9 293.7 337.8 14.39 3 925 789 17.6 17.6 100 0.0 17.6 25 13 297.3 299.8 293.6 337.3 13.82 4 850 1513 15.8 15.3 97 0.5 15.5 325 11 302.7 305.1 294.6 341.1 12.97 5 847 1543 15.6 15.3 98 0.3 15.4 324 11 302.8 305.2 294.6 341.3 13.02 6 841 1604 16.2 16.1 99 0.1 16.1 321 12 304.0 306.6 295.6 345.2 13.82 7 786 2179 15.6 9.6 67 6.0 11.8 299 16 309.3 311.1 294.0 338.6 9.59 8 700 3154 9.4 7.0 85 2.4 7.9 260 23 312.9 314.6 294.5 340.8 9.02 9 679 3406 7.2 7.2 100 0.0 7.2 262 23 313.2 315.0 294.9 342.4 9.43 10 620 4148 2.4 0.0 84 2.4 1.1 269 23 315.9 317.1 293.2 335.5 6.18 11 607 4319 0.8 0.8 100 0.0 0.8 271 23 316.0 317.3 293.6 337.1 6.70 12 573 4781 -1.1 -1.1 100 0.0 -1.1 275 23 319.0 320.2 294.0 338.8 6.17 13 534 5341 -4.7 -9.7 68 5.0 -6.8 280 23 321.2 321.9 292.4 332.5 3.43 14 526 5460 -3.9 -4.7 94 0.8 -4.3 281 23 323.6 324.6 294.4 340.4 5.14 15 521 5536 -3.7 -5.0 91 1.3 -4.4 282 23 324.7 325.7 294.7 341.4 5.07 16 500 5860 -5.7 -6.2 96 0.5 -6.0 285 23 326.1 327.0 294.8 342.1 4.82 17 499 5876 -5.7 -6.1 97 0.4 -5.9 285 23 326.3 327.2 294.9 342.4 4.87 18 433 6976 -12.5 -12.7 98 0.2 -12.6 295 22 331.1 331.8 294.9 342.6 3.33 19 416 7282 -13.3 -16.4 77 3.1 -14.5 297 21 333.9 334.5 295.0 342.9 2.55 20 400 7580 -15.3 -17.0 87 1.7 -15.9 300 21 335.1 335.6 295.3 344.0 2.52 21 374 8085 -18.9 -23.6 66 4.7 -20.3 300 20 336.8 337.1 294.9 342.4 1.52 22 373 8105 -19.1 -30.1 37 11.0 -21.6 300 20 336.8 337.0 294.3 340.0 0.84 23 361 8349 -20.1 -21.5 89 1.4 -20.5 300 20 338.7 339.0 295.6 345.5 1.90 24 301 9676 -28.9 -33.3 66 4.4 -29.7 300 17 344.3 344.5 296.0 347.3 0.77 25 300 9700 -28.9 -33.3 66 4.4 -29.7 300 17 344.6 344.8 296.1 347.6 0.77 26 250 10970 -39.9 -42.7 75 2.8 -40.2 295 21 346.7 346.8 296.2 348.2 0.35 27 217 11918 -47.9 -51.9 63 4.0 -48.1 298 15 348.7 348.7 296.5 349.3 0.15 28 215 11979 -48.3 -51.9 66 3.6 -48.5 298 14 349.0 349.0 296.5 349.6 0.15 29 200 12450 -52.5 -57.5 55 5.0 -52.7 300 11 349.6 349.6 296.6 350.0 0.08 30 186 12916 -55.5 -63.5 36 8.0 -55.7 291 11 352.1 352.1 297.1 352.3 0.04 31 168 13556 -61.1 -66.0 52 4.9 -61.2 279 11 353.2 353.2 297.4 353.3 0.03 32 150 14250 -66.7 -72.7 42 6.0 -66.7 265 11 355.2 355.2 297.7 355.2 0.01 33 142 14578 -69.1 -75.1 41 6.0 -69.1 262 10 356.6 356.6 298.0 356.6 0.01 34 135 14879 -69.5 -76.5 35 7.0 -69.5 260 9 361.1 361.1 298.9 361.1 0.01 35 100 16630 -77.3 -84.3 32 7.0 -77.3 245 3 378.4 378.4 302.0 378.4 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5745.00 m Freezing level: 592.68 mb = 4513.89 m = 14809.15 ft Wetbulb zero: 592.83 mb = 4508.69 m = 14792.10 ft Precipitable water: 2.27 inches Sfc-500 mean rel hum: 89.76 % Est. max temperature: 29.69 C = 85.44 F Sfc-Lift cond lev (LCL): 988.48 mb = 215.38 m = 706.60 ft T: 21.28 C 700-500 lapse rate: 5.58 C/km ThetaE index: 6.56 C Layer 786.0- 700.0 mb Conv cond level (CCL): 954.66 mb = 517.08 m = 1696.44 ft Mean mixing ratio: 14.72 g/kg Conv temperature: 24.10 C = 75.39 F Cap Strength: 3.80 C Lifted Index: 1.66 C Risk: Showers probable Lifted Index @300 mb: 6.06 C Lifted Index @700 mb: 2.17 C Showalter Index: 0.67 C Risk: Thunderstorms probable Total Totals Index: 42.50 C Risk: None Vertical Totals Index: 21.50 C Cross Totals Index: 21.00 C K Index: 34.40 Risk: 60-80 % chance of thunderstorms Sweat Index: 228.60 Risk: None Energy Index: 0.09 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.71 J/kg Max Up Vert Vel: 6.59 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 3.80 C Lift Cond Lev (LCL): 955.08 mb = 513.30 m = 1684.03 ft Lev Free Conv (LFC): 950.08 mb = 558.79 m = 1833.26 ft Equ Level (EL): 900.08 mb = 1022.87 m = 3355.82 ft B at Equ Level: 13.52 J/kg Max Parcel Lev (MPL): 840.08 mb = 1612.98 m = 5291.85 ft Wind level data Storm motion: 314 at 14 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 1013 6 330 5 2.5 -4.3 | 125 9 -7.5 5.2 1 1000 115 340 7 2.4 -6.6 | 111 8 -7.6 2.9 2 925 789 25 13 -5.5 -11.8 | 82 16 -15.5 -2.3 3 850 1513 325 11 6.3 -9.0 | 98 4 -3.7 0.5 4 700 3154 260 23 22.7 4.0 | 223 19 12.7 13.5 5 500 5860 285 23 22.2 -6.0 | 254 13 12.2 3.6 6 400 7580 300 21 18.2 -10.5 | 277 8 8.2 -1.0 7 300 9700 300 17 14.7 -8.5 | 258 5 4.7 1.0 8 250 10970 295 21 19.0 -8.9 | 266 9 9.0 0.6 9 200 12450 300 11 9.5 -5.5 | 173 4 -0.5 4.0 10 150 14250 265 11 11.0 1.0 | 185 11 1.0 10.5 11 100 16630 245 3 2.7 1.3 | 146 13 -7.3 10.8 Wind Parameters Mean winds (0-6000m): 283.6 at 18.4 knts Storm direction: 313.6 at 13.8 knts Shear (0-3000m) pos: 1.5 neg: 4.7 tot: 6.2 10-3/s Storm rel Dir Shear (0-3000m): 102.2 deg Storm rel helicity (0-3000m) pos: 3.4 neg: -32.5 tot: -29.1 m^2/s^2 ave: -9.7 10^-3 m/s^2 rel: -0.16 Storm rel vorticity (0-3000m) horiz: 7.7 stream: -1.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.55 Bulk Shear: 39.18 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 ------------------------------------------------------------------------------- 500 352 8 99 9| 7.3 0.0 7.3| 0.0 -14.3 -14.3 -28.6 -0.81| 7.8 -6.3 1000 9 10 88 12| 4.6 0.0 4.6| 0.0 -21.6 -21.6 -21.6 -0.52| 8.0 -4.2 1500 2 11 84 10| 3.1 2.9 5.9| 2.6 -22.4 -19.8 -13.2 -0.27| 8.3 -2.2 2000 348 11 80 8| 2.3 3.6 5.9| 3.3 -22.4 -19.1 -9.5 -0.13| 7.7 -1.0 2500 332 12 73 4| 1.8 4.2 6.1| 3.4 -23.5 -20.1 -8.1 -0.12| 7.6 -0.9 3000 314 14 121 0| 1.5 4.7 6.2| 3.4 -32.5 -29.1 -9.7 -0.16| 7.7 -1.2 4000 291 16 232 6| 1.4 3.7 5.0| 14.4 -37.1 -22.6 -5.7 -0.11| 6.4 -0.7 5000 285 17 233 8| 1.5 2.9 4.4| 26.8 -37.1 -10.3 -2.1 -0.05| 5.5 -0.3 6000 284 18 237 9| 1.5 2.5 4.0| 37.5 -37.1 0.4 0.1 0.01| 4.9 0.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250425.00.gif