UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for VI399... Searching the city database file for: VI399 ... Date:0000Z 18 OCT 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 1001 78 23.4 21.8 91 1.6 22.3 0 0 296.5 299.5 295.4 344.5 16.65 1 1000 87 22.4 19.3 83 3.1 20.3 40 2 295.5 298.1 293.4 336.4 14.23 2 925 772 22.6 18.7 79 3.9 19.9 80 2 302.4 305.1 295.8 346.2 14.83 3 850 1504 18.8 11.8 64 7.0 14.3 225 2 305.8 307.8 293.5 336.7 10.28 4 700 3145 8.6 -1.4 49 10.0 3.4 275 5 312.0 312.9 291.0 327.5 4.93 5 500 5830 -5.5 -24.5 21 19.0 -11.2 270 17 326.3 326.5 291.7 330.1 1.05 6 400 7540 -17.7 -35.7 19 18.0 -21.1 255 26 332.0 332.1 292.7 333.7 0.46 7 300 9640 -31.5 -47.5 19 16.0 -33.1 260 42 341.0 341.0 294.7 341.7 0.17 8 250 10900 -40.5 -62.5 8 22.0 -41.5 260 44 345.9 345.9 295.7 346.0 0.03 9 200 12390 -51.7 -84.7 1 33.0 -52.1 260 41 350.9 350.9 296.8 350.9 0.00 10 150 14200 -65.3 -94.3 1 29.0 -65.4 260 33 357.6 357.6 298.2 357.6 0.00 11 103 16411 -76.7 -101.7 1 25.0 -76.7 280 12 376.3 376.3 301.6 376.3 0.00 12 100 16580 -77.1 -102.1 1 25.0 -77.1 270 11 378.8 378.8 302.1 378.8 0.00 TRP 103 16411 -76.7 -101.7 1 25.0 -76.7 280 12 376.3 376.3 301.6 376.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5743.00 m Freezing level: 578.01 mb = 4782.66 m = 15690.95 ft Wetbulb zero: 653.33 mb = 3695.59 m = 12124.50 ft Precipitable water: 1.54 inches Sfc-500 mean rel hum: 50.68 % Est. max temperature: 32.73 C = 90.91 F Sfc-Lift cond lev (LCL): 978.24 mb = 280.30 m = 919.59 ft T: 22.46 C 700-500 lapse rate: 5.25 C/km ThetaE index: 18.74 C Layer 850.0- 500.0 mb Conv cond level (CCL): 808.11 mb = 1931.19 m = 6335.86 ft Mean mixing ratio: 14.42 g/kg Conv temperature: 34.40 C = 93.93 F Cap Strength: 3.49 C Lifted Index: 0.40 C Risk: Showers probable Lifted Index @300 mb: 1.29 C Lifted Index @700 mb: 0.26 C Showalter Index: 2.68 C Risk: Showers probable Total Totals Index: 41.60 C Risk: None Vertical Totals Index: 24.30 C Cross Totals Index: 17.30 C K Index: 26.10 Risk: 40-60 % chance of thunderstorms Sweat Index: 162.60 Risk: None Energy Index: -1.28 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 73.25 J/kg Max Up Vert Vel: 12.10 m/s Conv Inhibition (B-): 184.29 J/kg Cap Strength: 3.49 C Lift Cond Lev (LCL): 899.64 mb = 1012.64 m = 3322.27 ft Lev Free Conv (LFC): 474.64 mb = 6228.86 m = 20435.64 ft Equ Level (EL): 334.64 mb = 8842.31 m = 29009.84 ft B at Equ Level: 71.25 J/kg Max Parcel Lev (MPL): 274.64 mb = 10250.34 m = 33629.31 ft Wind level data Storm motion: 288 at 5 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 1001 78 0 0 -0.0 -0.0 | 108 5 -4.4 1.5 1 1000 87 40 2 -1.3 -1.5 | 89 6 -5.7 -0.1 2 976 305 80 5 -4.9 -0.9 | 94 9 -9.3 0.6 3 942 610 70 2 -1.9 -0.7 | 97 6 -6.3 0.8 4 925 772 80 2 -2.0 -0.3 | 100 6 -6.4 1.1 5 910 914 95 2 -2.0 0.2 | 104 7 -6.4 1.6 6 878 1219 130 2 -1.5 1.3 | 115 7 -5.9 2.7 7 850 1504 225 2 1.4 1.4 | 134 4 -3.0 2.9 8 818 1829 250 2 1.9 0.7 | 130 3 -2.5 2.1 9 789 2134 255 3 2.9 0.8 | 146 3 -1.5 2.2 10 761 2438 240 8 6.9 4.0 | 205 6 2.5 5.5 11 734 2743 240 8 6.9 4.0 | 205 6 2.5 5.5 12 708 3048 255 6 5.8 1.6 | 205 3 1.4 3.0 13 700 3145 275 5 5.0 -0.4 | 210 1 0.6 1.0 14 656 3658 270 6 6.0 -0.0 | 228 2 1.6 1.5 15 632 3962 250 3 2.8 1.0 | 148 3 -1.6 2.5 16 608 4267 160 3 -1.0 2.8 | 128 7 -5.4 4.3 17 585 4572 155 5 -2.1 4.5 | 133 9 -6.5 6.0 18 563 4877 250 5 4.7 1.7 | 186 3 0.3 3.2 19 522 5486 280 17 16.7 -3.0 | 277 12 12.4 -1.5 20 500 5830 270 17 17.0 -0.0 | 263 13 12.6 1.5 21 483 6096 265 16 15.9 1.4 | 256 12 11.6 2.8 22 400 7540 255 26 25.1 6.7 | 248 22 20.7 8.2 23 396 7620 255 25 24.1 6.5 | 248 21 19.8 7.9 24 321 9144 265 36 35.9 3.1 | 262 32 31.5 4.6 25 300 9640 260 42 41.4 7.3 | 257 38 37.0 8.7 26 259 10668 260 43 42.3 7.5 | 257 39 38.0 8.9 27 250 10900 260 44 43.3 7.6 | 257 40 38.9 9.1 28 206 12192 255 42 40.6 10.9 | 251 38 36.2 12.3 29 200 12390 260 41 40.4 7.1 | 257 37 36.0 8.6 30 162 13716 265 35 34.9 3.1 | 262 31 30.5 4.5 31 150 14200 260 33 32.5 5.7 | 256 29 28.1 7.2 32 126 15240 260 32 31.5 5.6 | 256 28 27.1 7.0 33 103 16411 280 12 11.8 -2.1 | 275 7 7.4 -0.6 34 100 16580 270 11 11.0 -0.0 | 258 7 6.6 1.5 35 72 18288 355 8 0.7 -8.0 | 30 7 -3.7 -6.5 36 40 21336 180 16 0.0 16.0 | 166 18 -4.4 17.5 37 22 24384 65 13 -11.8 -5.5 | 76 17 -16.2 -4.0 38 12 27432 110 13 -12.2 4.4 | 110 18 -16.6 5.9 Wind Parameters Mean winds (0-6000m): 258.3 at 6.2 knts Storm direction: 288.3 at 4.6 knts Shear (0-3000m) pos: 0.5 neg: 0.9 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 99.7 deg Storm rel helicity (0-3000m) pos: 13.2 neg: -3.3 tot: 9.9 m^2/s^2 ave: 3.3 10^-3 m/s^2 rel: 0.32 Storm rel vorticity (0-3000m) horiz: 4.0 stream: 1.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 5.89 Bulk Shear: 12.43 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 74 4 93 8| 2.4 0.0 2.4| 2.6 -3.1 -0.6 -1.1 -0.12| 7.8 -1.0 1000 79 3 97 7| 1.0 0.0 1.0| 5.3 -3.1 2.2 2.2 0.07| 4.8 0.3 1500 92 3 103 7| 0.7 0.0 0.7| 9.2 -3.1 6.1 4.1 0.23| 4.6 1.1 2000 108 2 108 7| 0.7 0.0 0.7| 9.7 -3.3 6.4 3.2 0.24| 3.8 0.9 2500 207 3 145 5| 0.6 1.1 1.7| 12.9 -3.3 9.7 3.9 0.36| 4.2 1.5 3000 231 4 160 4| 0.5 0.9 1.4| 13.2 -3.3 9.9 3.3 0.32| 4.0 1.3 4000 248 4 169 3| 0.5 0.7 1.2| 13.4 -5.4 8.1 2.0 0.15| 4.0 0.6 5000 238 4 168 4| 1.4 0.9 2.3| 28.0 -8.2 19.8 4.0 0.26| 4.9 1.3 6000 258 6 211 3| 2.0 1.0 3.0| 41.4 -22.3 19.1 3.2 0.23| 5.3 1.2 Wrote GIF file: /home/apache/climate/data/raob//VI399/skewt/VI399.skewt.20251018.00.gif