UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042100.upa.cvt Date: 0000Z 21 APR 25 Searching for VV839... Searching the city database file for: VV839 ... Date:0000Z 21 APR 25 Station: VV839 WMO ident: 48839 Latitude: 20.13 Longitude: 107.72 ------------------------------------------------------------------------------- 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 1011 5 25.2 22.6 86 2.6 23.3 140 3 297.4 300.6 296.1 347.6 17.32 1 1000 101 25.0 23.2 90 1.8 23.7 155 15 298.1 301.5 296.8 351.0 18.19 2 964 423 23.2 22.4 95 0.8 22.6 174 20 299.5 302.8 297.1 352.0 17.97 3 939 654 25.6 12.6 44 13.0 17.1 187 23 304.2 306.0 292.6 333.5 9.80 4 925 787 26.0 14.0 48 12.0 18.0 195 25 305.9 307.9 294.0 338.7 10.92 5 914 893 26.8 9.8 34 17.0 16.0 199 24 307.8 309.3 292.6 333.1 8.35 6 909 941 26.6 8.6 32 18.0 15.4 200 24 308.0 309.5 292.2 331.6 7.73 7 903 1000 25.6 17.6 61 8.0 20.0 202 23 307.6 310.2 296.7 350.3 14.16 8 850 1529 21.2 16.9 76 4.3 18.2 220 19 308.4 311.1 297.1 351.9 14.40 9 776 2312 14.8 14.8 100 0.0 14.8 225 19 309.6 312.2 297.0 351.5 13.78 10 718 2968 11.6 9.2 85 2.4 10.1 229 19 313.0 315.0 295.4 344.7 10.23 11 700 3181 11.0 6.9 76 4.1 8.5 230 19 314.7 316.4 295.0 342.6 8.96 12 669 3557 9.0 1.0 57 8.0 4.5 229 19 316.5 317.7 293.3 336.1 6.16 13 664 3620 9.0 -7.0 32 16.0 1.4 228 19 317.2 317.9 291.2 328.3 3.40 14 662 3645 9.0 -6.0 34 15.0 1.7 228 19 317.5 318.2 291.6 329.4 3.69 15 644 3872 6.6 3.0 78 3.6 4.5 228 19 317.3 318.7 294.5 340.7 7.40 16 608 4341 3.4 -7.6 44 11.0 -1.7 226 20 318.8 319.5 291.8 330.4 3.55 17 605 4381 3.0 -2.0 70 5.0 0.4 226 20 318.8 319.9 293.4 336.4 5.47 18 587 4625 1.2 -0.1 91 1.3 0.5 225 20 319.5 320.8 294.4 340.3 6.49 19 554 5089 -1.9 -2.7 94 0.8 -2.3 223 20 321.2 322.3 294.2 339.5 5.67 20 507 5791 -4.5 -11.5 58 7.0 -7.5 220 21 326.3 326.9 293.5 336.8 3.13 21 500 5900 -5.5 -10.4 68 4.9 -7.7 220 21 326.3 327.0 293.8 338.0 3.47 22 491 6042 -6.5 -8.7 84 2.2 -7.5 221 21 326.8 327.6 294.4 340.3 4.04 23 472 6349 -7.9 -18.9 41 11.0 -11.7 223 21 328.8 329.1 293.1 335.1 1.82 24 465 6465 -8.3 -28.3 18 20.0 -13.7 223 21 329.7 329.9 292.4 332.6 0.80 25 461 6532 -8.7 -14.7 62 6.0 -11.1 224 21 330.0 330.5 294.1 339.1 2.65 26 457 6600 -9.3 -14.3 67 5.0 -11.3 224 21 330.1 330.6 294.2 339.6 2.77 27 452 6685 -9.9 -13.1 77 3.2 -11.2 225 21 330.4 331.0 294.6 341.0 3.09 28 433 7015 -10.5 -37.5 9 27.0 -16.2 226 21 333.7 333.8 293.1 335.0 0.35 29 400 7620 -14.9 -40.9 9 26.0 -19.6 230 21 335.6 335.7 293.5 336.7 0.27 30 370 8207 -18.5 -50.5 4 32.0 -22.7 239 22 338.4 338.4 294.0 338.8 0.10 31 364 8329 -19.3 -29.3 41 10.0 -21.7 241 22 338.9 339.1 294.9 342.4 0.93 32 351 8599 -21.3 -35.3 27 14.0 -23.9 246 23 339.8 339.9 294.8 341.8 0.54 33 343 8769 -22.7 -31.7 44 9.0 -24.6 249 23 340.1 340.3 295.1 343.1 0.79 34 337 8899 -23.5 -38.5 24 15.0 -26.0 251 23 340.7 340.8 294.9 342.3 0.41 35 327 9119 -25.5 -33.5 47 8.0 -27.0 255 24 340.9 341.1 295.2 343.6 0.69 36 317 9344 -27.1 -36.1 42 9.0 -28.6 258 24 341.8 341.9 295.3 343.9 0.55 37 315 9390 -27.3 -53.3 7 26.0 -29.8 259 24 342.1 342.1 294.9 342.5 0.09 38 310 9505 -27.9 -43.9 20 16.0 -29.9 261 25 342.8 342.9 295.3 343.8 0.25 39 308 9551 -28.3 -32.4 68 4.1 -29.1 262 25 342.9 343.1 295.7 346.0 0.82 40 307 9575 -28.5 -36.5 46 8.0 -29.8 262 25 342.9 343.1 295.5 345.1 0.55 41 302 9692 -29.5 -31.6 82 2.1 -29.9 264 25 343.2 343.3 295.8 346.6 0.90 42 300 9740 -29.7 -32.1 80 2.4 -30.2 265 25 343.5 343.7 295.9 346.8 0.86 43 281 10201 -32.9 -39.9 50 7.0 -33.8 265 24 345.4 345.5 296.0 347.1 0.42 44 276 10327 -33.7 -53.7 12 20.0 -35.3 265 24 346.0 346.1 295.8 346.4 0.09 45 271 10454 -34.5 -41.5 49 7.0 -35.3 265 24 346.7 346.8 296.2 348.2 0.37 46 267 10558 -35.5 -42.5 49 7.0 -36.3 265 24 346.7 346.8 296.2 348.1 0.34 47 255 10875 -38.1 -46.1 43 8.0 -38.8 265 23 347.4 347.5 296.3 348.4 0.24 48 250 11010 -39.3 -52.3 24 13.0 -40.2 265 23 347.6 347.7 296.2 348.1 0.12 49 249 11037 -39.5 -60.5 9 21.0 -40.6 265 23 347.7 347.7 296.2 347.9 0.04 50 244 11176 -40.5 -49.5 37 9.0 -41.2 267 23 348.3 348.3 296.4 349.0 0.17 51 241 11260 -41.3 -55.3 21 14.0 -42.1 268 23 348.3 348.3 296.3 348.7 0.09 52 238 11345 -41.9 -46.8 59 4.9 -42.3 269 23 348.6 348.7 296.5 349.6 0.24 53 226 11693 -44.7 -49.1 61 4.4 -45.0 274 23 349.6 349.6 296.7 350.4 0.19 54 223 11783 -45.3 -48.8 68 3.5 -45.5 275 23 350.0 350.0 296.8 350.8 0.20 55 212 12118 -48.1 -54.1 50 6.0 -48.4 280 23 350.7 350.7 296.9 351.2 0.12 56 210 12181 -48.3 -59.3 27 11.0 -48.7 281 23 351.3 351.4 297.0 351.6 0.06 57 200 12500 -51.1 -61.1 29 10.0 -51.4 285 23 351.8 351.9 297.1 352.1 0.05 58 150 14310 -66.1 -77.1 20 11.0 -66.2 360 11 356.2 356.2 298.0 356.2 0.01 59 100 16680 -78.3 -86.3 26 8.0 -78.3 75 7 376.4 376.4 301.6 376.5 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5799.00 m Freezing level: 574.23 mb = 4804.66 m = 15763.13 ft Wetbulb zero: 617.73 mb = 4211.68 m = 13817.68 ft Precipitable water: 2.20 inches Sfc-500 mean rel hum: 75.97 % Est. max temperature: 36.01 C = 96.83 F Sfc-Lift cond lev (LCL): 973.82 mb = 334.16 m = 1096.30 ft T: 23.70 C 700-500 lapse rate: 6.07 C/km ThetaE index: 23.67 C Layer 776.0- 662.0 mb Conv cond level (CCL): 788.72 mb = 2172.04 m = 7126.04 ft Mean mixing ratio: 14.59 g/kg Conv temperature: 37.22 C = 98.99 F Cap Strength: 6.12 C Lifted Index: -0.54 C Risk: Thunderstorms probable Lifted Index @300 mb: 1.69 C Lifted Index @700 mb: 1.96 C Showalter Index: -3.23 C Risk: Severe thunderstorms possible Total Totals Index: 49.10 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.70 C Cross Totals Index: 22.40 C K Index: 39.50 Risk: > 80 % chance of thunderstorms Sweat Index: 263.80 Risk: None Energy Index: -2.77 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 97.75 J/kg Max Up Vert Vel: 13.98 m/s Conv Inhibition (B-): 340.86 J/kg Cap Strength: 6.30 C Lift Cond Lev (LCL): 881.35 mb = 1212.08 m = 3976.60 ft Lev Free Conv (LFC): 606.35 mb = 4363.33 m = 14315.21 ft Equ Level (EL): 446.35 mb = 6781.50 m = 22248.75 ft B at Equ Level: 96.74 J/kg Max Parcel Lev (MPL): 316.35 mb = 9358.59 m = 30703.67 ft Wind level data Storm motion: 247 at 15 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 1011 5 140 3 -1.9 2.3 | 78 16 -15.7 -3.4 1 1000 101 155 15 -6.3 13.6 | 111 22 -20.1 7.9 2 925 787 195 25 6.5 24.1 | 159 20 -7.3 18.4 3 850 1529 220 19 12.2 14.6 | 170 9 -1.5 8.9 4 700 3181 230 19 14.6 12.2 | 187 7 0.8 6.5 5 500 5900 220 21 13.5 16.1 | 179 10 -0.2 10.4 6 400 7620 230 21 16.1 13.5 | 197 8 2.4 7.8 7 300 9740 265 25 24.9 2.2 | 287 12 11.2 -3.5 8 250 11010 265 23 22.9 2.0 | 292 10 9.2 -3.7 9 200 12500 285 23 22.2 -6.0 | 324 14 8.5 -11.7 10 150 14310 360 11 -0.0 -11.0 | 39 22 -13.7 -16.7 11 100 16680 75 7 -6.8 -1.8 | 70 22 -20.5 -7.5 Wind Parameters Mean winds (0-6000m): 217.5 at 19.8 knts Storm direction: 247.5 at 14.9 knts Shear (0-3000m) pos: 3.3 neg: 0.0 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 107.3 deg Storm rel helicity (0-3000m) pos: 161.4 neg: 0.0 tot: 161.4 m^2/s^2 ave: 53.8 10^-3 m/s^2 rel: 0.76 Storm rel vorticity (0-3000m) horiz: 7.5 stream: 5.7 10^-3/s Energy-Hel index: 0.10 Bulk Rich Number: 3.00 Bulk Shear: 32.60 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 ------------------------------------------------------------------------------- 500 167 16 120 20| 19.2 0.0 19.2|103.5 0.0 103.5 207.1 0.94| 22.4 21.1 1000 184 20 139 19| 11.3 0.0 11.3|151.1 0.0 151.1 151.1 0.89| 17.0 15.2 1500 193 20 147 17| 6.5 0.0 6.5|157.2 0.0 157.2 104.8 0.77| 13.9 10.7 2000 200 20 152 15| 4.9 0.0 4.9|158.7 0.0 158.7 79.3 0.76| 10.7 8.2 2500 205 20 156 13| 3.9 0.0 3.9|160.1 0.0 160.1 64.0 0.76| 8.8 6.7 3000 209 20 160 12| 3.3 0.0 3.3|161.4 0.0 161.4 53.8 0.76| 7.5 5.7 4000 214 20 165 11| 2.5 0.1 2.6|161.9 -0.6 161.3 40.3 0.73| 5.8 4.3 5000 216 20 168 10| 2.0 0.2 2.2|161.9 -1.6 160.2 32.0 0.70| 4.8 3.4 6000 217 20 171 10| 1.6 0.3 1.9|162.3 -2.8 159.5 26.6 0.67| 4.1 2.8 Wrote GIF file: /home/apache/climate/data/raob//VV839/skewt/VV839.skewt.20250421.00.gif