UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041700.upa.cvt Date: 0000Z 17 APR 25 Searching for VV839... Searching the city database file for: VV839 ... Date:0000Z 17 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 1008 4 23.4 21.7 90 1.7 22.2 145 7 295.9 298.8 295.1 343.1 16.43 1 1000 73 23.0 21.6 92 1.4 22.0 155 15 296.1 299.1 295.2 343.6 16.46 2 955 475 21.6 19.5 88 2.1 20.1 182 22 298.7 301.4 295.0 342.6 15.11 3 934 669 23.2 17.2 69 6.0 19.1 194 26 302.2 304.6 294.7 341.6 13.33 4 925 754 23.0 20.1 84 2.9 20.9 200 27 302.8 305.8 296.8 350.8 16.22 5 886 1131 23.6 15.6 61 8.0 18.1 225 27 307.2 309.6 295.6 345.4 12.68 6 850 1493 21.2 16.6 75 4.6 18.0 250 27 308.4 311.0 296.8 351.1 14.12 7 747 2601 13.6 12.3 92 1.3 12.7 267 23 311.7 314.0 296.4 348.9 12.13 8 700 3149 12.0 4.0 58 8.0 7.3 275 21 315.8 317.2 294.0 338.8 7.30 9 693 3233 11.8 3.8 58 8.0 7.1 274 21 316.5 317.9 294.2 339.4 7.27 10 657 3678 8.6 2.6 66 6.0 5.1 271 21 317.7 319.1 294.3 340.1 7.04 11 639 3908 7.8 -2.2 49 10.0 2.5 270 21 319.3 320.3 293.3 335.8 5.10 12 579 4713 1.4 -0.6 87 2.0 0.3 264 21 321.0 322.2 294.7 341.4 6.34 13 541 5257 -2.3 -3.2 94 0.9 -2.8 260 21 322.9 324.0 294.6 341.1 5.59 14 505 5802 -5.7 -5.7 100 0.0 -5.7 256 21 325.2 326.1 294.7 341.5 4.96 15 500 5880 -5.5 -6.6 92 1.1 -6.0 255 21 326.3 327.3 294.8 341.9 4.67 16 461 6513 -8.7 -10.7 85 2.0 -9.6 255 24 330.0 330.7 294.9 342.5 3.67 17 457 6580 -8.7 -12.6 73 3.9 -10.3 255 24 330.8 331.5 294.7 341.7 3.18 18 420 7229 -12.9 -14.4 88 1.5 -13.5 255 27 333.5 334.1 295.3 343.9 2.99 19 402 7562 -14.1 -18.8 68 4.7 -15.7 255 29 336.2 336.6 295.3 343.8 2.16 20 400 7600 -14.5 -19.1 68 4.6 -16.1 255 29 336.1 336.6 295.2 343.7 2.11 21 383 7928 -16.9 -21.1 70 4.2 -18.2 255 30 337.2 337.6 295.3 343.9 1.86 22 375 8087 -18.3 -28.3 41 10.0 -20.8 255 31 337.4 337.6 294.6 341.0 0.99 23 347 8661 -23.9 -28.9 63 5.0 -25.0 255 32 337.4 337.6 294.6 341.1 1.01 24 303 9639 -30.9 -32.0 90 1.1 -31.1 255 36 340.9 341.0 295.3 344.1 0.86 25 300 9710 -31.1 -33.7 78 2.6 -31.5 255 36 341.5 341.7 295.4 344.4 0.74 26 294 9853 -31.7 -34.7 75 3.0 -32.2 254 37 342.7 342.8 295.6 345.3 0.68 27 250 10980 -41.1 -44.1 73 3.0 -41.3 250 46 345.0 345.0 295.8 346.2 0.30 28 228 11596 -46.1 -51.1 57 5.0 -46.4 254 48 346.5 346.6 296.0 347.2 0.15 29 219 11861 -48.1 -50.8 74 2.7 -48.3 256 48 347.5 347.5 296.2 348.1 0.16 30 211 12104 -50.1 -54.1 63 4.0 -50.3 258 49 348.1 348.1 296.3 348.6 0.12 31 209 12166 -50.3 -58.3 38 8.0 -50.6 258 49 348.7 348.7 296.4 349.0 0.07 32 200 12450 -52.9 -59.9 42 7.0 -53.1 260 50 349.0 349.0 296.5 349.3 0.06 33 188 12845 -56.3 -65.3 31 9.0 -56.5 263 53 349.7 349.8 296.6 349.9 0.03 34 178 13189 -59.5 -62.9 64 3.4 -59.6 266 55 350.0 350.0 296.7 350.2 0.05 35 174 13331 -60.3 -66.3 45 6.0 -60.4 267 56 351.0 351.0 296.8 351.1 0.03 36 165 13659 -62.6 -69.1 42 6.4 -62.7 270 58 352.4 352.4 297.2 352.5 0.02 37 154 14081 -65.7 -72.7 37 7.0 -65.8 277 57 354.2 354.2 297.5 354.3 0.01 38 150 14240 -66.9 -72.9 42 6.0 -67.0 280 56 354.8 354.8 297.7 354.9 0.01 39 141 14613 -69.5 -76.5 35 7.0 -69.5 286 49 356.6 356.6 298.0 356.7 0.01 40 139 14699 -69.1 -77.1 30 8.0 -69.1 288 48 358.8 358.8 298.5 358.8 0.01 41 131 15054 -69.5 -84.5 10 15.0 -69.6 293 41 364.2 364.2 299.5 364.2 0.00 42 100 16630 -79.7 -87.7 25 8.0 -79.7 320 11 373.7 373.7 301.2 373.7 0.00 TRP WND 165 13659 -62.6 -69.1 42 6.4 -62.7 270 58 352.4 352.4 297.2 352.5 0.02 Sounding variables and indices 1000-500 mb thick: 5807.00 m Freezing level: 564.62 mb = 4918.81 m = 16137.63 ft Wetbulb zero: 575.17 mb = 4766.07 m = 15636.52 ft Precipitable water: 2.30 inches Sfc-500 mean rel hum: 78.19 % Est. max temperature: 35.65 C = 96.17 F Sfc-Lift cond lev (LCL): 983.64 mb = 217.06 m = 712.14 ft T: 22.50 C 700-500 lapse rate: 6.41 C/km ThetaE index: 12.34 C Layer 747.0- 693.0 mb Conv cond level (CCL): 787.13 mb = 2151.99 m = 7060.25 ft Mean mixing ratio: 15.34 g/kg Conv temperature: 37.92 C = 100.26 F Cap Strength: 5.71 C Lifted Index: -0.48 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.40 C Lifted Index @700 mb: 3.02 C Showalter Index: -2.94 C Risk: Severe thunderstorms possible Total Totals Index: 48.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.70 C Cross Totals Index: 22.10 C K Index: 35.30 Risk: > 80 % chance of thunderstorms Sweat Index: 310.09 Risk: Showers and thunderstorms possible Energy Index: -1.84 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 86.66 J/kg Max Up Vert Vel: 13.17 m/s Conv Inhibition (B-): 412.66 J/kg Cap Strength: 5.62 C Lift Cond Lev (LCL): 918.01 mb = 820.42 m = 2691.62 ft Lev Free Conv (LFC): 573.01 mb = 4796.29 m = 15735.67 ft Equ Level (EL): 463.01 mb = 6478.94 m = 21256.10 ft B at Equ Level: 68.37 J/kg Max Parcel Lev (MPL): 263.01 mb = 10627.49 m = 34866.65 ft Wind level data Storm motion: 281 at 17 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 1008 4 145 7 -4.0 5.7 | 114 22 -20.5 9.1 1 1000 73 155 15 -6.3 13.6 | 127 28 -22.8 16.9 2 925 754 200 27 9.2 25.4 | 166 30 -7.2 28.7 3 850 1493 250 27 25.4 9.2 | 215 15 8.9 12.6 4 700 3149 275 21 20.9 -1.8 | 251 5 4.4 1.5 5 500 5880 255 21 20.3 5.4 | 203 10 3.8 8.8 6 400 7600 255 29 28.0 7.5 | 227 16 11.5 10.8 7 300 9710 255 36 34.8 9.3 | 235 22 18.3 12.6 8 250 10980 250 46 43.2 15.7 | 235 33 26.7 19.1 9 200 12450 260 50 49.2 8.7 | 250 35 32.8 12.0 10 165 13659 270 58 58.0 -0.0 | 265 42 41.5 3.3 11 150 14240 280 56 55.1 -9.7 | 279 39 38.7 -6.4 12 100 16630 320 11 7.1 -8.4 | 62 11 -9.4 -5.1 Wind Parameters Mean winds (0-6000m): 251.4 at 22.4 knts Storm direction: 281.4 at 16.8 knts Shear (0-3000m) pos: 4.5 neg: 0.0 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 131.9 deg Storm rel helicity (0-3000m) pos: 320.2 neg: 0.0 tot: 320.2 m^2/s^2 ave: 106.7 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 10.8 stream: 8.5 10^-3/s Energy-Hel index: 0.17 Bulk Rich Number: 0.95 Bulk Shear: 91.54 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 ------------------------------------------------------------------------------- 500 170 18 137 28| 18.2 0.0 18.2|128.7 0.0 128.7 257.5 0.87| 20.7 18.0 1000 191 22 153 28| 13.2 0.0 13.2|240.9 0.0 240.9 240.9 0.89| 18.7 16.6 1500 207 24 167 25| 10.1 0.0 10.1|306.4 0.0 306.4 204.2 0.86| 17.9 15.3 2000 220 24 178 22| 7.4 0.0 7.4|312.8 0.0 312.8 156.4 0.83| 14.4 12.0 2500 229 24 186 19| 5.7 0.0 5.7|317.2 0.0 317.2 126.9 0.81| 12.3 9.9 3000 236 24 192 17| 4.5 0.0 4.5|320.2 0.0 320.2 106.7 0.79| 10.8 8.5 4000 245 23 199 14| 3.4 0.2 3.6|320.7 -2.5 318.2 79.5 0.73| 8.5 6.2 5000 250 23 203 12| 2.7 0.4 3.2|320.7 -6.0 314.7 62.9 0.67| 7.1 4.8 6000 251 22 204 12| 2.3 0.6 2.8|321.6 -9.2 312.4 52.1 0.63| 6.1 3.9 Wrote GIF file: /home/apache/climate/data/raob//VV839/skewt/VV839.skewt.20250417.00.gif