UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041800.upa.cvt Date: 0000Z 18 APR 25 Searching for VV811... Searching the city database file for: VV811 ... Date:0000Z 18 APR 25 Station: VV811 WMO ident: 48811 Latitude: 21.40 Longitude: 103.02 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 64 SFC 954 476 21.8 20.7 93 1.1 21.1 0 0 298.9 301.9 295.8 346.5 16.32 2 943 578 21.0 20.1 95 0.9 20.4 49 0 299.1 302.0 295.6 345.5 15.90 3 925 746 21.8 18.9 84 2.9 19.8 130 1 301.6 304.4 295.7 345.8 15.02 4 923 765 21.8 18.8 83 3.0 19.7 133 1 301.8 304.5 295.7 345.9 14.96 5 915 841 24.0 18.0 69 6.0 19.8 143 3 304.8 307.5 296.1 347.6 14.34 6 890 1084 23.2 18.2 73 5.0 19.6 176 7 306.4 309.2 296.9 351.3 14.94 7 850 1484 20.4 15.8 75 4.6 17.2 230 15 307.5 310.0 296.2 348.0 13.40 8 757 2476 13.6 12.9 96 0.7 13.1 248 21 310.5 312.9 296.3 348.6 12.46 9 700 3133 9.2 6.8 85 2.4 7.8 260 25 312.7 314.4 294.4 340.2 8.90 10 669 3507 6.6 4.5 86 2.1 5.4 259 27 313.8 315.3 294.0 338.5 7.92 11 644 3819 5.4 1.3 75 4.1 3.1 258 29 315.9 317.2 293.4 336.6 6.54 12 641 3857 5.8 -3.2 52 9.0 1.2 257 29 316.8 317.7 292.2 331.9 4.71 13 624 4077 4.4 -0.6 70 5.0 1.7 257 30 317.6 318.8 293.4 336.4 5.88 14 613 4222 3.6 -5.4 52 9.0 -0.8 256 31 318.3 319.1 292.2 331.8 4.17 15 599 4409 3.2 -13.8 27 17.0 -3.7 255 32 320.0 320.4 290.9 327.3 2.20 16 577 4712 0.6 -8.4 51 9.0 -3.5 254 34 320.4 321.1 292.2 331.9 3.52 17 572 4782 0.0 -3.4 78 3.4 -1.7 254 34 320.5 321.5 293.7 337.3 5.21 18 563 4909 -0.3 -8.3 55 8.0 -4.0 254 35 321.6 322.3 292.7 333.5 3.63 19 532 5360 -2.9 -4.3 90 1.4 -3.6 252 37 323.7 324.7 294.5 340.9 5.24 20 500 5850 -5.5 -8.2 81 2.7 -6.7 250 40 326.3 327.2 294.3 340.1 4.12 21 492 5976 -6.5 -8.9 83 2.4 -7.6 250 40 326.6 327.4 294.3 339.9 3.97 22 465 6416 -8.3 -28.3 18 20.0 -13.7 250 41 329.7 329.9 292.4 332.6 0.80 23 459 6517 -9.1 -18.1 48 9.0 -12.3 250 42 329.9 330.3 293.6 336.9 2.00 24 430 7020 -11.5 -26.5 28 15.0 -15.6 250 43 333.1 333.3 293.5 336.8 1.02 25 412 7346 -13.9 -33.9 17 20.0 -18.3 250 43 334.1 334.2 293.3 336.1 0.53 26 400 7570 -15.5 -29.5 29 14.0 -18.9 250 44 334.8 335.0 293.8 337.9 0.83 27 360 8357 -21.7 -23.6 85 1.9 -22.2 252 49 336.8 337.1 294.9 342.5 1.58 28 353 8501 -22.9 -26.6 72 3.7 -23.8 252 50 337.1 337.3 294.7 341.6 1.23 29 346 8648 -23.5 -37.5 26 14.0 -25.8 253 51 338.2 338.3 294.3 339.9 0.44 30 335 8884 -24.7 -43.7 15 19.0 -27.3 253 53 339.7 339.7 294.5 340.6 0.24 31 300 9680 -29.7 -50.7 11 21.0 -31.7 255 58 343.5 343.5 295.3 344.0 0.12 32 294 9823 -30.5 -49.5 14 19.0 -32.4 254 58 344.4 344.4 295.5 345.0 0.14 33 264 10576 -36.7 -54.7 14 18.0 -37.9 251 58 346.1 346.1 295.8 346.4 0.09 34 257 10761 -38.1 -48.1 34 10.0 -38.9 251 58 346.7 346.7 296.1 347.5 0.19 35 250 10950 -40.1 -55.1 19 15.0 -41.0 250 58 346.4 346.5 295.9 346.8 0.09 36 247 11032 -40.3 -60.3 10 20.0 -41.3 250 58 347.3 347.4 296.1 347.5 0.05 37 230 11512 -44.1 -64.1 9 20.0 -44.8 250 60 348.7 348.7 296.4 348.8 0.03 38 224 11688 -45.6 -61.5 15 15.9 -46.2 250 60 349.0 349.1 296.5 349.2 0.04 39 213 12020 -48.5 -56.5 39 8.0 -48.8 252 54 349.6 349.6 296.6 350.0 0.09 40 208 12175 -49.9 -61.9 23 12.0 -50.3 253 51 349.8 349.8 296.6 350.0 0.04 41 205 12270 -50.1 -76.1 3 26.0 -50.5 254 49 350.9 350.9 296.8 351.0 0.01 42 200 12430 -51.1 -72.1 6 21.0 -51.5 255 46 351.8 351.9 297.0 351.9 0.01 43 150 14250 -64.9 -78.9 13 14.0 -65.0 280 40 358.3 358.3 298.4 358.3 0.01 44 133 14975 -69.9 -81.9 16 12.0 -69.9 361.9 361.9 299.1 361.9 0.00 45 132 15020 -69.9 -80.9 19 11.0 -69.9 362.7 362.7 299.2 362.7 0.00 TRP WND 224 11688 -45.6 -61.5 15 15.9 -46.2 250 60 349.0 349.1 296.5 349.2 0.04 Sounding variables and indices 1000-500 mb thick: 5786.00 m Freezing level: 572.00 mb = 4781.55 m = 15687.31 ft Wetbulb zero: 616.50 mb = 4175.56 m = 13699.17 ft Precipitable water: 1.84 inches Sfc-500 mean rel hum: 76.39 % Est. max temperature: 31.69 C = 89.04 F Sfc-Lift cond lev (LCL): 939.07 mb = 614.09 m = 2014.71 ft T: 21.17 C 700-500 lapse rate: 5.41 C/km ThetaE index: 16.68 C Layer 700.0- 624.0 mb Conv cond level (CCL): 791.51 mb = 2094.38 m = 6871.23 ft Mean mixing ratio: 14.80 g/kg Conv temperature: 32.09 C = 89.75 F Cap Strength: 3.11 C Lifted Index: -1.95 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.42 C Lifted Index @700 mb: -0.96 C Showalter Index: -1.83 C Risk: Thunderstorms probable Total Totals Index: 47.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.90 C Cross Totals Index: 21.30 C K Index: 39.30 Risk: > 80 % chance of thunderstorms Sweat Index: 327.35 Risk: Showers and thunderstorms possible Energy Index: -1.60 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 446.26 J/kg Max Up Vert Vel: 29.88 m/s Conv Inhibition (B-): 106.98 J/kg Cap Strength: 3.11 C Lift Cond Lev (LCL): 851.29 mb = 1470.81 m = 4825.44 ft Lev Free Conv (LFC): 736.29 mb = 2708.86 m = 8887.24 ft Equ Level (EL): 276.29 mb = 10257.97 m = 33654.35 ft B at Equ Level: 446.18 J/kg Max Parcel Lev (MPL): 146.29 mb = 14400.99 m = 47246.77 ft Wind level data Storm motion: 281 at 19 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 ---------------------------------------------------------- 0 954 476 0 0 -0.0 -0.0 | 101 19 -19.0 3.8 1 925 746 130 1 -0.8 0.6 | 103 20 -19.7 4.4 2 850 1484 230 15 11.5 9.6 | 151 15 -7.5 13.4 3 700 3133 260 25 24.6 4.3 | 215 10 5.7 8.1 4 500 5850 250 40 37.6 13.7 | 227 26 18.6 17.4 5 400 7570 250 44 41.3 15.0 | 230 29 22.4 18.8 6 300 9680 255 58 56.0 15.0 | 243 42 37.1 18.8 7 250 10950 250 58 54.5 19.8 | 236 43 35.6 23.6 8 224 11688 250 60 56.4 20.5 | 237 45 37.4 24.3 9 200 12430 255 46 44.4 11.9 | 238 30 25.5 15.7 10 150 14250 280 40 39.4 -6.9 | 279 21 20.4 -3.2 Wind Parameters Mean winds (0-6000m): 251.2 at 25.8 knts Storm direction: 281.2 at 19.3 knts Shear (0-3000m) pos: 4.6 neg: 0.0 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): 118.3 deg Storm rel helicity (0-3000m) pos: 143.2 neg: -1.5 tot: 141.7 m^2/s^2 ave: 47.2 10^-3 m/s^2 rel: 0.84 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 5.5 10^-3/s Energy-Hel index: 0.35 Bulk Rich Number: 4.96 Bulk Shear: 90.00 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 ------------------------------------------------------------------------------- 500 152 2 105 20| 5.5 0.0 5.5| 27.0 -1.5 25.5 51.0 0.73| 6.3 4.6 1000 224 6 118 17| 7.6 0.0 7.6| 96.9 -1.5 95.4 95.4 0.81| 11.1 9.0 1500 231 9 130 15| 6.2 0.0 6.2|111.1 -1.5 109.6 73.1 0.82| 8.8 7.3 2000 237 12 139 14| 5.4 0.0 5.4|124.0 -1.5 122.5 61.3 0.83| 7.7 6.5 2500 243 14 148 12| 4.9 0.0 4.9|136.8 -1.5 135.2 54.1 0.85| 7.2 6.1 3000 248 16 157 11| 4.6 0.0 4.6|143.2 -1.5 141.7 47.2 0.84| 6.5 5.5 4000 251 19 177 10| 3.5 0.8 4.2|148.7 -1.5 147.2 36.8 0.76| 5.7 4.3 5000 252 23 194 11| 2.8 1.2 4.0|151.1 -1.5 149.6 29.9 0.68| 5.1 3.5 6000 251 26 204 13| 2.3 1.3 3.6|154.9 -1.6 153.2 25.5 0.64| 4.6 2.9 Wrote GIF file: /home/apache/climate/data/raob//VV811/skewt/VV811.skewt.20250418.00.gif