UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025043000.upa.cvt Date: 0000Z 30 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 30 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 1012 6 25.6 23.6 89 2.0 24.2 130 3 297.7 301.1 296.9 351.2 18.42 1 1000 108 24.8 23.4 92 1.4 23.8 125 5 298.0 301.3 297.0 351.5 18.41 2 975 331 22.8 22.6 99 0.2 22.7 148 5 298.1 301.4 296.7 350.4 17.98 3 925 790 20.8 19.8 94 1.0 20.1 195 5 300.6 303.5 296.0 347.3 15.91 4 890 1124 18.8 17.8 94 1.0 18.1 195 8 301.8 304.5 295.4 344.8 14.56 5 877 1250 18.2 16.9 92 1.3 17.3 195 9 302.5 305.1 295.2 343.7 13.95 6 871 1309 18.6 12.6 68 6.0 14.7 195 9 303.5 305.5 293.0 335.0 10.58 7 850 1519 17.6 11.6 68 6.0 13.7 195 11 304.6 306.5 293.0 334.9 10.15 8 841 1610 17.6 10.6 64 7.0 13.1 199 11 305.5 307.3 292.9 334.3 9.59 9 840 1620 17.6 10.6 64 7.0 13.1 200 11 305.6 307.4 292.9 334.5 9.60 10 751 2570 11.2 11.1 99 0.1 11.2 246 10 308.6 310.7 294.9 342.4 11.13 11 700 3156 8.6 7.2 91 1.4 7.8 275 9 312.0 313.7 294.4 340.2 9.15 12 640 3892 5.0 2.6 84 2.4 3.7 268 11 316.0 317.4 294.0 338.8 7.23 13 541 5247 -1.9 -4.0 86 2.1 -3.0 256 14 323.4 324.4 294.4 340.6 5.27 14 500 5870 -5.7 -6.7 93 1.0 -6.2 250 15 326.1 327.0 294.7 341.5 4.64 15 468 6386 -9.9 -9.9 100 0.0 -9.9 241 17 327.1 327.9 294.3 340.0 3.86 16 463 6469 -8.3 -13.3 67 5.0 -10.4 240 18 330.1 330.7 294.4 340.3 2.96 17 400 7590 -16.3 -17.9 87 1.6 -16.9 220 23 333.8 334.3 294.8 342.0 2.34 18 365 8274 -19.5 -29.5 41 10.0 -21.8 231 26 338.4 338.6 294.7 341.8 0.91 19 347 8648 -22.5 -27.5 64 5.0 -23.7 237 27 339.3 339.5 295.1 343.5 1.15 20 336 8884 -24.3 -35.3 35 11.0 -26.3 241 28 339.9 340.1 294.8 342.1 0.56 21 333 8949 -24.7 -29.7 63 5.0 -25.8 242 28 340.3 340.5 295.3 343.9 0.98 22 323 9170 -26.3 -37.3 35 11.0 -28.1 246 29 341.0 341.1 295.0 342.9 0.48 23 320 9237 -26.9 -33.9 52 7.0 -28.2 247 29 341.1 341.3 295.2 343.7 0.68 24 319 9260 -26.7 -37.7 35 11.0 -28.5 248 29 341.7 341.8 295.1 343.5 0.47 25 300 9700 -30.3 -35.3 62 5.0 -31.1 255 31 342.7 342.8 295.6 345.1 0.63 26 299 9724 -30.5 -35.5 62 5.0 -31.3 255 31 342.7 342.8 295.6 345.1 0.62 27 279 10212 -33.5 -43.5 36 10.0 -34.6 255 34 345.3 345.3 295.8 346.4 0.29 28 254 10862 -39.3 -45.3 53 6.0 -39.8 255 37 346.1 346.1 296.0 347.1 0.26 29 250 10970 -40.1 -47.1 47 7.0 -40.6 255 38 346.4 346.5 296.0 347.3 0.22 30 215 11978 -48.9 -55.9 44 7.0 -49.2 255 42 348.1 348.1 296.3 348.4 0.09 31 200 12450 -51.1 -66.1 15 15.0 -51.5 255 44 351.8 351.9 297.1 352.0 0.03 32 185 12953 -54.9 -70.9 12 16.0 -55.2 256 43 353.6 353.6 297.4 353.7 0.01 33 150 14260 -66.5 -72.5 43 6.0 -66.5 260 40 355.5 355.5 297.8 355.6 0.01 34 139 14717 -70.5 -76.5 41 6.0 -70.5 264 37 356.3 356.3 298.0 356.4 0.01 35 123 15436 -74.9 -79.5 49 4.6 -74.9 270 33 361.0 361.0 298.9 361.0 0.01 36 112 15976 -78.1 -85.1 31 7.0 -78.1 274 29 364.8 364.8 299.6 364.8 0.00 37 100 16620 -80.9 -84.8 52 3.9 -80.9 280 25 371.4 371.4 300.8 371.4 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5762.00 m Freezing level: 568.26 mb = 4874.10 m = 15990.93 ft Wetbulb zero: 585.39 mb = 4611.47 m = 15129.31 ft Precipitable water: 2.30 inches Sfc-500 mean rel hum: 87.24 % Est. max temperature: 31.85 C = 89.33 F Sfc-Lift cond lev (LCL): 983.41 mb = 255.09 m = 836.89 ft T: 23.48 C 700-500 lapse rate: 5.27 C/km ThetaE index: 17.15 C Layer 975.0- 840.0 mb Conv cond level (CCL): 937.89 mb = 669.21 m = 2195.56 ft Mean mixing ratio: 17.24 g/kg Conv temperature: 27.80 C = 82.04 F Cap Strength: 0.41 C Lifted Index: -2.56 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.61 C Lifted Index @700 mb: -1.85 C Showalter Index: 3.25 C Risk: None Total Totals Index: 40.60 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 17.30 C K Index: 33.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 176.20 Risk: None Energy Index: 1.25 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 671.59 J/kg Max Up Vert Vel: 36.65 m/s Conv Inhibition (B-): 2.02 J/kg Cap Strength: 0.41 C Lift Cond Lev (LCL): 950.27 mb = 554.78 m = 1820.11 ft Lev Free Conv (LFC): 905.27 mb = 976.45 m = 3203.53 ft Equ Level (EL): 865.27 mb = 1365.99 m = 4481.54 ft B at Equ Level: 17.35 J/kg Max Parcel Lev (MPL): 115.27 mb = 15810.54 m = 51871.22 ft Wind level data Storm motion: 272 at 8 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 1012 6 130 3 -2.3 1.9 | 103 10 -9.9 2.3 1 1000 108 125 5 -4.1 2.9 | 105 12 -11.7 3.2 2 925 790 195 5 1.3 4.8 | 129 8 -6.3 5.2 3 850 1519 195 11 2.8 10.6 | 156 12 -4.8 10.9 4 700 3156 275 9 9.0 -0.8 | 289 1 1.3 -0.5 5 500 5870 250 15 14.1 5.1 | 230 8 6.5 5.5 6 400 7590 220 23 14.8 17.6 | 202 19 7.2 17.9 7 300 9700 255 31 29.9 8.0 | 249 24 22.3 8.3 8 250 10970 255 38 36.7 9.8 | 251 31 29.1 10.2 9 200 12450 255 44 42.5 11.4 | 251 37 34.9 11.7 10 150 14260 260 40 39.4 6.9 | 257 33 31.8 7.3 11 100 16620 280 25 24.6 -4.3 | 283 17 17.0 -4.0 Wind Parameters Mean winds (0-6000m): 242.4 at 10.2 knts Storm direction: 272.4 at 7.6 knts Shear (0-3000m) pos: 2.0 neg: 0.7 tot: 2.7 10-3/s Storm rel Dir Shear (0-3000m): 143.0 deg Storm rel helicity (0-3000m) pos: 39.8 neg: 0.0 tot: 39.8 m^2/s^2 ave: 13.3 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 4.6 stream: 3.0 10^-3/s Energy-Hel index: 0.14 Bulk Rich Number: 35.22 Bulk Shear: 19.07 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 ------------------------------------------------------------------------------- 500 142 5 111 11| 3.2 0.0 3.2| 10.3 0.0 10.3 20.6 0.62| 5.7 3.6 1000 167 5 121 10| 3.2 0.0 3.2| 17.4 0.0 17.4 17.4 0.66| 5.0 3.3 1500 181 6 132 10| 2.1 1.4 3.5| 25.5 0.0 25.5 17.0 0.68| 4.8 3.2 2000 191 7 141 10| 2.1 1.1 3.1| 33.5 0.0 33.5 16.7 0.67| 4.7 3.2 2500 200 8 148 9| 2.1 0.8 2.9| 37.7 0.0 37.7 15.1 0.65| 4.7 3.0 3000 209 8 154 8| 2.0 0.7 2.7| 39.8 0.0 39.8 13.3 0.65| 4.6 3.0 4000 228 9 168 6| 1.6 0.7 2.3| 40.2 -0.7 39.5 9.9 0.57| 3.9 2.2 5000 239 9 184 5| 1.3 0.8 2.1| 40.2 -2.3 37.9 7.6 0.48| 3.4 1.6 6000 242 10 196 5| 1.1 1.0 2.1| 40.2 -5.4 34.7 5.8 0.39| 3.1 1.2 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250430.00.gif