UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042700.upa.cvt Date: 0000Z 27 APR 25 Searching for VI399... Searching the city database file for: VI399 ... Date:0000Z 27 APR 25 Station: VI399 WMO ident: 42399 Latitude: 26.53 Longitude: 88.72 ------------------------------------------------------------------------------- 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 998 83 21.4 20.6 95 0.8 20.9 110 5 294.7 297.5 294.1 339.0 15.48 1 925 739 22.4 14.4 61 8.0 17.1 265 15 302.2 304.3 293.2 335.4 11.22 2 850 1471 18.0 14.9 82 3.1 15.9 235 22 305.0 307.3 295.0 342.8 12.64 3 700 3108 7.4 4.2 80 3.2 5.6 275 25 310.7 312.1 292.7 333.5 7.41 4 500 5790 -8.9 -16.9 52 8.0 -11.7 270 33 322.2 322.6 291.5 329.1 2.04 5 400 7480 -19.3 -26.3 54 7.0 -21.0 250 39 329.9 330.1 292.7 333.9 1.12 6 300 9550 -35.1 -40.1 60 5.0 -35.7 245 80 335.9 336.0 293.7 337.4 0.39 7 250 10810 -42.9 -55.9 23 13.0 -43.5 245 88 342.3 342.3 295.0 342.6 0.08 8 200 12280 -52.5 -74.5 5 22.0 -52.8 245 85 349.6 349.6 296.5 349.7 0.01 9 150 14090 -63.5 -92.5 1 29.0 -63.6 250 77 360.7 360.7 298.8 360.7 0.00 10 100 16530 -71.7 -98.7 1 27.0 -71.8 265 38 389.2 389.2 303.7 389.2 0.00 TRP WND 223 245 93 Sounding variables and indices 1000-500 mb thick: 5707.46 m Freezing level: 609.20 mb = 4325.60 m = 14191.41 ft Wetbulb zero: 635.59 mb = 3877.36 m = 12720.83 ft Precipitable water: 1.80 inches Sfc-500 mean rel hum: 72.29 % Est. max temperature: 31.75 C = 89.15 F Sfc-Lift cond lev (LCL): 986.70 mb = 180.91 m = 593.53 ft T: 21.55 C 700-500 lapse rate: 6.08 C/km ThetaE index: 13.67 C Layer 700.0- 400.0 mb Conv cond level (CCL): 789.94 mb = 2088.83 m = 6853.03 ft Mean mixing ratio: 12.82 g/kg Conv temperature: 33.85 C = 92.93 F Cap Strength: 4.08 C Lifted Index: -0.92 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.68 C Lifted Index @700 mb: 0.64 C Showalter Index: -3.24 C Risk: Severe thunderstorms possible Total Totals Index: 50.70 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.90 C Cross Totals Index: 23.80 C K Index: 38.60 Risk: > 80 % chance of thunderstorms Sweat Index: 386.50 Risk: Showers and thunderstorms possible Energy Index: -2.74 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 105.22 J/kg Max Up Vert Vel: 14.51 m/s Conv Inhibition (B-): 209.98 J/kg Cap Strength: 4.08 C Lift Cond Lev (LCL): 879.28 mb = 1177.86 m = 3864.31 ft Lev Free Conv (LFC): 634.28 mb = 3893.90 m = 12775.11 ft Equ Level (EL): 354.28 mb = 8353.44 m = 27405.97 ft B at Equ Level: 104.80 J/kg Max Parcel Lev (MPL): 254.28 mb = 10692.79 m = 35080.91 ft Wind level data ------------------------------------ TRUE/GROUND REL LEV P H DIR SPD U V mb m knt m/s ------------------------------------ 0 223 12072 245 93 84.3 39.3 1 998 83 110 5 -4.7 1.7 2 973 305 155 9 -3.8 8.2 3 939 610 250 10 9.4 3.4 4 925 739 265 15 14.9 1.3 5 906 914 265 18 17.9 1.6 6 875 1219 245 20 18.1 8.5 7 850 1471 235 22 18.0 12.6 8 815 1829 245 24 21.8 10.1 9 786 2134 255 18 17.4 4.7 10 758 2438 265 16 15.9 1.4 11 731 2743 275 20 19.9 -1.7 12 705 3048 275 24 23.9 -2.1 13 700 3108 275 25 24.9 -2.2 14 653 3658 275 30 29.9 -2.6 15 629 3962 280 37 36.4 -6.4 16 605 4267 285 41 39.6 -10.6 17 583 4572 285 39 37.7 -10.1 18 561 4877 280 32 31.5 -5.6 19 519 5486 270 32 32.0 -0.0 20 500 5790 270 33 33.0 -0.0 21 480 6096 270 34 34.0 -0.0 22 400 7480 250 39 36.6 13.3 23 392 7620 250 39 36.6 13.3 24 317 9144 255 68 65.7 17.6 25 300 9550 245 80 72.5 33.8 26 255 10668 250 88 82.7 30.1 27 250 10810 245 88 79.8 37.2 28 203 12192 245 86 77.9 36.3 29 200 12280 245 85 77.0 35.9 30 159 13716 250 86 80.8 29.4 31 150 14090 250 77 72.4 26.3 32 124 15240 260 63 62.0 10.9 33 100 16530 265 38 37.9 3.3 Wind Parameters Energy-Hel index: -6.58 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 NO DATA | | | 1000 NO DATA | | | 1500 NO DATA | | | 2000 NO DATA | | | 2500 NO DATA | | | 3000 NO DATA | | | 4000 NO DATA | | | 5000 NO DATA | | | 6000 NO DATA | | | Wrote GIF file: /home/apache/climate/data/raob//VI399/skewt/VI399.skewt.20250427.00.gif