UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042212.upa.cvt Date: 1200Z 22 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 22 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 1005 6 28.6 24.1 77 4.5 25.3 110 3 301.3 304.8 298.2 357.7 19.13 1 1000 50 28.0 23.9 78 4.1 25.0 125 3 301.1 304.6 298.1 357.1 19.00 2 969 329 25.4 23.2 88 2.2 23.8 167 7 301.3 304.7 298.0 356.6 18.79 3 947 532 27.4 20.4 66 7.0 22.3 198 10 305.3 308.3 297.4 353.5 16.13 4 925 741 27.0 19.0 62 8.0 21.3 230 13 306.9 309.7 297.1 352.4 15.12 5 871 1272 25.2 12.2 44 13.0 16.6 255 20 310.4 312.3 294.8 341.9 10.30 6 850 1486 23.2 13.2 53 10.0 16.5 265 23 310.4 312.6 295.5 345.0 11.29 7 700 3149 11.6 4.6 62 7.0 7.5 250 33 315.3 316.8 294.1 339.3 7.62 8 662 3614 8.0 5.8 86 2.2 6.6 246 32 316.4 318.0 295.3 343.9 8.78 9 577 4738 1.4 1.0 97 0.4 1.2 236 28 321.3 322.7 295.4 344.3 7.15 10 500 5880 -5.5 -5.5 100 0.0 -5.5 225 25 326.3 327.3 295.1 343.2 5.09 11 462 6497 -7.5 -10.3 80 2.8 -8.8 252 23 331.3 332.1 295.3 344.2 3.78 12 451 6685 -7.7 -17.7 45 10.0 -11.4 260 22 333.3 333.8 294.5 340.8 2.11 13 411 7402 -10.9 -32.9 14 22.0 -16.2 291 20 338.2 338.3 294.4 340.4 0.58 14 400 7610 -12.7 -32.7 17 20.0 -17.4 300 19 338.5 338.6 294.5 340.8 0.61 15 377 8060 -15.7 -49.7 4 34.0 -20.6 288 17 340.3 340.3 294.5 340.7 0.11 16 361 8386 -18.5 -25.5 54 7.0 -20.4 279 15 340.8 341.1 295.7 345.7 1.33 17 325 9161 -25.1 -35.1 39 10.0 -26.9 257 12 342.1 342.2 295.4 344.4 0.59 18 322 9228 -25.1 -48.1 10 23.0 -27.9 255 11 343.0 343.0 295.2 343.6 0.15 19 303 9668 -27.7 -45.7 16 18.0 -29.9 242 9 345.4 345.4 295.8 346.2 0.21 20 300 9740 -28.3 -45.3 18 17.0 -30.4 240 9 345.5 345.5 295.8 346.4 0.22 21 293 9909 -29.7 -46.7 18 17.0 -31.6 245 10 345.8 345.9 295.9 346.7 0.20 22 276 10332 -33.7 -38.1 64 4.4 -34.3 258 11 346.0 346.1 296.2 348.1 0.52 23 275 10358 -33.7 -38.1 64 4.4 -34.3 259 11 346.4 346.5 296.3 348.4 0.52 24 269 10512 -34.7 -42.7 44 8.0 -35.6 264 11 347.1 347.2 296.3 348.5 0.33 25 257 10830 -37.3 -43.3 54 6.0 -37.9 274 12 347.9 347.9 296.4 349.2 0.32 26 250 11020 -38.7 -46.7 43 8.0 -39.4 280 13 348.5 348.6 296.5 349.5 0.23 27 245 11158 -39.9 -49.9 34 10.0 -40.6 274 13 348.8 348.8 296.5 349.4 0.16 28 226 11703 -44.3 -54.3 32 10.0 -44.8 251 14 350.2 350.2 296.8 350.6 0.11 29 219 11913 -45.7 -50.6 58 4.9 -46.0 241 14 351.2 351.2 297.0 351.9 0.17 30 207 12285 -48.3 -52.5 62 4.2 -48.5 225 15 352.8 352.8 297.4 353.4 0.14 31 200 12510 -50.3 -56.3 49 6.0 -50.5 215 15 353.1 353.1 297.4 353.5 0.09 32 159 13964 -63.5 -68.3 52 4.8 -63.6 259 15 354.7 354.7 297.7 354.8 0.02 33 150 14320 -65.9 -70.7 51 4.8 -66.0 270 15 356.6 356.6 298.0 356.6 0.02 34 140 14735 -68.5 -73.2 51 4.7 -68.5 288 13 359.1 359.1 298.5 359.2 0.01 35 126 15361 -71.7 -82.7 18 11.0 -71.8 315 10 364.3 364.3 299.5 364.3 0.00 36 115 15895 -74.3 -80.3 39 6.0 -74.3 339 7 369.1 369.1 300.4 369.1 0.01 37 100 16700 -78.1 -85.1 31 7.0 -78.1 15 3 376.8 376.8 301.7 376.8 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5830.00 m Freezing level: 561.38 mb = 4969.52 m = 16303.99 ft Wetbulb zero: 563.26 mb = 4929.91 m = 16174.04 ft Precipitable water: 2.19 inches Sfc-500 mean rel hum: 75.46 % Est. max temperature: 37.73 C = 99.91 F Sfc-Lift cond lev (LCL): 941.89 mb = 580.41 m = 1904.20 ft T: 27.31 C 700-500 lapse rate: 6.26 C/km ThetaE index: 15.83 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 778.81 mb = 2235.21 m = 7333.29 ft Mean mixing ratio: 16.86 g/kg Conv temperature: 40.00 C = 104.00 F Cap Strength: 5.61 C Lifted Index: -4.05 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -2.25 C Lifted Index @700 mb: -0.14 C Showalter Index: -0.72 C Risk: Thunderstorms probable Total Totals Index: 47.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 28.70 C Cross Totals Index: 18.70 C K Index: 34.90 Risk: 60-80 % chance of thunderstorms Sweat Index: 229.40 Risk: None Energy Index: -0.36 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 835.97 J/kg Max Up Vert Vel: 40.89 m/s Conv Inhibition (B-): 243.23 J/kg Cap Strength: 5.53 C Lift Cond Lev (LCL): 879.44 mb = 1186.85 m = 3893.81 ft Lev Free Conv (LFC): 704.44 mb = 3094.83 m = 10153.53 ft Equ Level (EL): 174.44 mb = 13376.62 m = 43886.01 ft B at Equ Level: 833.99 J/kg Wind level data Storm motion: 275 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 1005 6 110 3 -2.8 1.0 | 97 22 -21.4 2.6 1 1000 50 125 3 -2.5 1.7 | 99 21 -21.0 3.3 2 925 741 230 13 10.0 8.4 | 139 13 -8.6 9.9 3 850 1486 265 23 22.9 2.0 | 231 6 4.3 3.5 4 700 3149 250 33 31.0 11.3 | 224 18 12.4 12.8 5 500 5880 225 25 17.7 17.7 | 177 19 -0.9 19.2 6 400 7610 300 19 16.5 -9.5 | 15 8 -2.1 -8.0 7 300 9740 240 9 7.8 4.5 | 119 12 -10.8 6.0 8 250 11020 280 13 12.8 -2.3 | 83 6 -5.8 -0.7 9 200 12510 215 15 8.6 12.3 | 144 17 -10.0 13.8 10 150 14320 270 15 15.0 -0.0 | 113 4 -3.6 1.5 11 100 16700 15 3 -0.8 -2.9 | 86 19 -19.4 -1.4 Wind Parameters Mean winds (0-6000m): 244.8 at 24.9 knts Storm direction: 274.8 at 18.6 knts Shear (0-3000m) pos: 4.4 neg: 1.9 tot: 6.3 10-3/s Storm rel Dir Shear (0-3000m): 128.2 deg Storm rel helicity (0-3000m) pos: 104.3 neg: -4.7 tot: 99.6 m^2/s^2 ave: 33.2 10^-3 m/s^2 rel: 0.58 Storm rel vorticity (0-3000m) horiz: 7.7 stream: 4.4 10^-3/s Energy-Hel index: 0.55 Bulk Rich Number: 11.67 Bulk Shear: 71.61 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 ------------------------------------------------------------------------------- 500 177 6 112 20| 10.0 0.0 10.0| 57.1 0.0 57.1 114.1 0.93| 11.1 10.4 1000 225 10 125 14| 9.6 0.0 9.6| 87.7 0.0 87.7 87.7 0.78| 12.0 9.3 1500 244 13 137 10| 8.9 0.0 8.9|104.3 0.0 104.3 69.5 0.81| 11.5 9.3 2000 252 16 152 7| 6.7 0.9 7.6|104.3 -0.2 104.1 52.1 0.73| 9.5 6.9 2500 254 18 171 7| 5.3 1.5 6.8|104.3 -1.6 102.7 41.1 0.65| 8.4 5.5 3000 253 20 187 8| 4.4 1.9 6.3|104.3 -4.7 99.6 33.2 0.58| 7.7 4.4 4000 251 23 200 10| 3.3 1.6 5.0|104.3 -29.6 74.7 18.7 0.40| 6.5 2.6 5000 248 24 201 12| 2.7 1.5 4.2|104.3 -55.8 48.6 9.7 0.27| 5.8 1.5 6000 245 25 198 13| 2.2 1.3 3.5|109.0 -76.3 32.6 5.4 0.19| 5.4 1.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250422.12.gif