UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042000.upa.cvt Date: 0000Z 20 APR 25 Searching for VV811... Searching the city database file for: VV811 ... Date:0000Z 20 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 80 SFC 956 472 21.2 21.1 99 0.1 21.2 0 0 298.2 301.2 295.9 346.7 16.70 2 925 758 19.8 19.8 100 0.0 19.8 0 0 299.6 302.5 295.7 346.0 15.91 3 850 1492 19.0 16.2 84 2.8 17.1 230 23 306.0 308.6 296.0 347.3 13.76 4 700 3141 10.0 3.0 62 7.0 6.0 255 21 313.6 314.9 293.0 334.8 6.80 5 500 5860 -5.3 -23.3 23 18.0 -10.9 240 38 326.6 326.8 291.9 330.7 1.17 6 400 7580 -14.9 -45.9 5 31.0 -19.8 235 38 335.6 335.7 293.4 336.2 0.16 7 300 9690 -29.5 -41.5 30 12.0 -31.1 250 38 343.8 343.9 295.6 345.1 0.34 8 250 10970 -38.5 -43.2 61 4.7 -39.0 260 38 348.8 348.9 296.7 350.2 0.34 9 200 12460 -50.7 -57.7 43 7.0 -51.0 270 36 352.5 352.5 297.3 352.8 0.08 10 150 14270 -64.3 -78.3 13 14.0 -64.4 265 27 359.3 359.3 298.5 359.3 0.01 11 100 16650 -79.5 -86.5 30 7.0 -79.5 330 11 374.1 374.1 301.3 374.1 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5780.00 m Freezing level: 569.28 mb = 4918.12 m = 16135.38 ft Wetbulb zero: 628.93 mb = 4006.11 m = 13143.26 ft Precipitable water: 1.61 inches Sfc-500 mean rel hum: 60.80 % Est. max temperature: 31.03 C = 87.85 F Sfc-Lift cond lev (LCL): 955.02 mb = 480.69 m = 1577.06 ft T: 21.16 C 700-500 lapse rate: 5.63 C/km ThetaE index: 16.60 C Layer 700.0- 400.0 mb Conv cond level (CCL): 819.53 mb = 1802.03 m = 5912.11 ft Mean mixing ratio: 15.33 g/kg Conv temperature: 30.39 C = 86.70 F Cap Strength: 2.11 C Lifted Index: -1.10 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.74 C Lifted Index @700 mb: 0.37 C Showalter Index: -1.39 C Risk: Thunderstorms probable Total Totals Index: 45.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.30 C Cross Totals Index: 21.50 C K Index: 33.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 325.11 Risk: Showers and thunderstorms possible Energy Index: -3.19 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 141.32 J/kg Max Up Vert Vel: 16.81 m/s Conv Inhibition (B-): 89.20 J/kg Cap Strength: 2.03 C Lift Cond Lev (LCL): 893.21 mb = 1061.54 m = 3482.71 ft Lev Free Conv (LFC): 658.21 mb = 3638.39 m = 11936.81 ft Equ Level (EL): 338.21 mb = 8810.63 m = 28905.92 ft B at Equ Level: 140.84 J/kg Max Parcel Lev (MPL): 238.21 mb = 11292.47 m = 37048.33 ft Wind level data Storm motion: 273 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 ---------------------------------------------------------- 0 956 472 0 0 -0.0 -0.0 | 93 19 -18.7 0.9 1 925 758 0 0 -0.0 -0.0 | 93 19 -18.7 0.9 2 850 1492 230 23 17.6 14.8 | 176 16 -1.0 15.7 3 700 3141 255 21 20.3 5.4 | 194 7 1.6 6.3 4 500 5860 240 38 32.9 19.0 | 216 24 14.3 19.9 5 400 7580 235 38 31.1 21.8 | 209 26 12.5 22.7 6 300 9690 250 38 35.7 13.0 | 231 22 17.1 13.9 7 250 10970 260 38 37.4 6.6 | 248 20 18.8 7.5 8 200 12460 270 36 36.0 -0.0 | 267 17 17.3 0.9 9 150 14270 265 27 26.9 2.4 | 249 9 8.2 3.2 10 100 16650 330 11 5.5 -9.5 | 57 16 -13.2 -8.6 Wind Parameters Mean winds (0-6000m): 242.7 at 24.9 knts Storm direction: 272.7 at 18.7 knts Shear (0-3000m) pos: 1.3 neg: 3.8 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 111.7 deg Storm rel helicity (0-3000m) pos: 20.9 neg: -33.5 tot: -12.6 m^2/s^2 ave: -4.2 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 8.2 stream: 1.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.75 Bulk Shear: 80.57 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 ------------------------------------------------------------------------------- 500 322 1 89 18| 0.0 6.9 6.9| 0.0 -27.2 -27.2 -54.4 -0.84| 7.3 -6.1 1000 234 8 115 13| 0.0 11.5 11.5| 8.9 -33.1 -24.2 -24.2 0.06| 18.3 1.0 1500 232 13 135 12| 0.5 7.7 8.2| 12.5 -33.5 -21.0 -14.0 0.07| 13.4 1.0 2000 235 15 147 11| 1.1 5.8 6.9| 15.8 -33.5 -17.7 -8.9 0.09| 10.8 1.0 2500 239 16 154 11| 1.5 4.6 6.1| 17.9 -33.5 -15.6 -6.2 0.11| 9.2 1.0 3000 242 17 160 10| 1.3 3.8 5.2| 20.9 -33.5 -12.6 -4.2 0.13| 8.2 1.1 4000 244 20 174 9| 1.0 3.7 4.7| 26.6 -33.5 -6.9 -1.7 0.15| 7.0 1.1 5000 244 22 187 11| 0.8 3.7 4.5| 28.0 -33.8 -5.7 -1.1 0.14| 6.3 0.9 6000 243 25 196 13| 0.7 3.3 4.0| 28.0 -42.1 -14.1 -2.3 0.11| 5.6 0.6 Wrote GIF file: /home/apache/climate/data/raob//VV811/skewt/VV811.skewt.20250420.00.gif