UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for VO371... Searching the city database file for: VO371 ... Date:1200Z 26 APR 25 Station: VO371 WMO ident: 43371 Latitude: 8.48 Longitude: 76.95 ------------------------------------------------------------------------------- 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 1000 78 28.6 26.1 86 2.5 26.7 0 0 301.8 305.7 299.9 366.2 21.75 1 952 510 24.6 24.2 98 0.4 24.3 272 3 302.0 305.7 299.1 362.2 20.36 2 925 761 23.2 22.9 98 0.3 23.0 220 4 303.0 306.6 298.8 360.5 19.34 3 864 1354 21.0 18.7 87 2.3 19.4 321 2 306.7 309.7 297.6 354.6 15.90 4 850 1495 20.0 18.1 89 1.9 18.7 345 1 307.1 310.0 297.5 354.0 15.56 5 782 2208 15.2 14.8 97 0.4 15.0 22 6 309.4 311.9 296.8 350.9 13.67 6 726 2836 14.0 8.0 67 6.0 10.2 54 10 314.7 316.5 295.2 343.7 9.32 7 700 3143 12.2 5.2 62 7.0 8.0 70 12 316.0 317.5 294.6 341.0 7.95 8 635 3955 6.0 2.9 80 3.1 4.2 80 11 317.9 319.3 294.7 341.5 7.45 9 599 4434 3.4 -2.6 65 6.0 0.3 86 11 320.2 321.2 293.6 337.3 5.28 10 564 4924 2.4 -9.6 41 12.0 -3.1 92 10 324.6 325.2 293.2 335.5 3.27 11 543 5231 0.0 -7.0 59 7.0 -3.4 96 10 325.3 326.1 294.1 339.1 4.17 12 500 5890 -4.3 -7.0 81 2.7 -5.6 105 9 327.8 328.7 295.0 342.9 4.53 TRP WND Sounding variables and indices 1000-500 mb thick: 5811.90 m Freezing level: 543.00 mb = 5230.89 m = 17161.49 ft Wetbulb zero: 596.34 mb = 4469.92 m = 14664.91 ft Precipitable water: 2.30 inches Sfc-500 mean rel hum: 77.02 % Est. max temperature: 33.95 C = 93.11 F Sfc-Lift cond lev (LCL): 964.98 mb = 391.38 m = 1284.04 ft T: 25.70 C 700-500 lapse rate: 6.01 C/km ThetaE index: 25.21 C Layer 952.0- 635.0 mb Conv cond level (CCL): 934.91 mb = 668.15 m = 2192.07 ft Mean mixing ratio: 20.09 g/kg Conv temperature: 29.49 C = 85.08 F Cap Strength: 0.03 C Lifted Index: -5.37 C Risk: Severe thunderstorms probable Lifted Index @700 mb: -1.47 C Showalter Index: -2.74 C Risk: Severe thunderstorms possible Total Totals Index: 46.70 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.30 C Cross Totals Index: 22.40 C K Index: 35.40 Risk: > 80 % chance of thunderstorms Sweat Index: 228.20 Risk: None Energy Index: -2.20 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 456.88 J/kg Max Up Vert Vel: 30.23 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 0.03 C Lift Cond Lev (LCL): 936.83 mb = 650.34 m = 2133.65 ft Lev Free Conv (LFC): 931.83 mb = 696.95 m = 2286.56 ft Wind level data Storm motion: 112 at 6 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 1000 78 0 0 -0.0 -0.0 | 292 6 5.2 -2.1 1 925 761 220 4 2.6 3.1 | 263 8 7.7 1.0 2 850 1495 345 1 0.3 -1.0 | 299 6 5.4 -3.1 3 700 3143 70 12 -11.3 -4.1 | 45 9 -6.1 -6.2 4 500 5890 105 9 -8.7 2.3 | 94 4 -3.5 0.2 Wind Parameters Mean winds (0-6000m): 82.1 at 7.4 knts Storm direction: 112.1 at 5.6 knts Shear (0-3000m) pos: 2.5 neg: 0.5 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 107.0 deg Storm rel helicity (0-3000m) pos: 40.4 neg: -9.3 tot: 31.1 m^2/s^2 ave: 10.4 10^-3 m/s^2 rel: 0.56 Storm rel vorticity (0-3000m) horiz: 4.5 stream: 2.5 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 49.29 Bulk Shear: 9.27 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 ------------------------------------------------------------------------------- 500 208 1 278 6| 0.0 3.0 3.0| 0.7 -4.5 -3.7 -7.5 -0.43| 4.2 -1.8 1000 229 2 274 7| 0.4 1.5 1.9| 7.5 -9.3 -1.8 -1.8 -0.09| 4.9 -0.4 1500 228 2 275 7| 1.2 1.0 2.2| 11.9 -9.3 2.6 1.7 0.11| 4.4 0.5 2000 262 2 283 8| 1.7 0.8 2.5| 18.4 -9.3 9.2 4.6 0.29| 4.2 1.2 2500 22 3 323 6| 2.2 0.6 2.8| 28.0 -9.3 18.7 7.5 0.44| 4.3 1.9 3000 68 4 344 4| 2.5 0.5 3.0| 40.4 -9.3 31.1 10.4 0.56| 4.5 2.5 4000 74 6 10 4| 1.8 0.4 2.2| 45.8 -9.3 36.5 9.1 0.58| 3.8 2.2 5000 79 7 26 4| 1.3 0.3 1.6| 48.4 -9.3 39.1 7.8 0.59| 3.3 2.0 6000 NO DATA | 1.1 0.3 1.4| | Wrote GIF file: /home/apache/climate/data/raob//VO371/skewt/VO371.skewt.20250426.12.gif