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 LFRB... Searching the city database file for: LFRB ... Date:1200Z 26 APR 25 Station: LFRB WMO ident: 7110 Latitude: 48.45 Longitude: -4.42 Elevation: 103.00 ------------------------------------------------------------------------------- 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 1010 103 13.8 9.4 75 4.4 11.3 35 5 286.1 287.4 284.0 306.6 7.34 1 1000 181 12.0 9.6 85 2.4 10.6 35 5 285.1 286.5 283.8 306.0 7.52 2 925 828 7.2 5.9 91 1.3 6.5 30 5 286.7 287.8 283.1 304.4 6.30 3 850 1518 2.4 2.3 99 0.1 2.4 15 9 288.7 289.6 282.9 303.8 5.32 4 700 3064 -5.9 -7.3 90 1.4 -6.4 355 19 296.0 296.5 283.5 305.4 3.15 5 500 5620 -21.3 -27.3 58 6.0 -22.4 335 15 307.1 307.2 285.2 309.8 0.81 6 400 7230 -33.9 -38.1 66 4.2 -34.3 35 5 310.9 311.0 286.1 312.2 0.36 7 300 9170 -49.1 -63.1 18 14.0 -49.4 155 21 316.1 316.2 287.5 316.2 0.03 8 250 10350 -55.7 -67.7 21 12.0 -55.9 190 9 323.3 323.3 289.8 323.3 0.02 9 249 10376 -55.9 -67.9 21 12.0 -56.1 195 9 323.3 323.3 289.8 323.4 0.02 10 200 11770 -56.9 -76.9 6 20.0 -57.1 285 13 342.7 342.7 295.0 342.7 0.01 11 150 13600 -55.9 -86.9 1 31.0 -56.2 270 7 373.8 373.8 301.2 373.8 0.00 12 100 16170 -55.7 -86.7 1 31.0 -56.2 250 17 420.1 420.1 307.7 420.1 0.00 TRP 249 10376 -55.9 -67.9 21 12.0 -56.1 195 9 323.3 323.3 289.8 323.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 5439.00 m Freezing level: 806.63 mb = 1965.04 m = 6446.89 ft Wetbulb zero: 809.66 mb = 1905.14 m = 6250.37 ft Precipitable water: 0.85 inches Sfc-500 mean rel hum: 83.97 % Est. max temperature: 16.06 C = 60.91 F Sfc-Lift cond lev (LCL): 945.35 mb = 647.37 m = 2123.88 ft T: 8.54 C 700-500 lapse rate: 6.03 C/km ThetaE index: 2.81 C Layer 1000.0- 700.0 mb Conv cond level (CCL): 922.66 mb = 848.70 m = 2784.43 ft Mean mixing ratio: 6.85 g/kg Conv temperature: 14.40 C = 57.91 F Cap Strength: 0.67 C Lifted Index: 4.11 C Risk: None Lifted Index @300 mb: 7.95 C Lifted Index @700 mb: 0.67 C Showalter Index: 5.05 C Risk: None Total Totals Index: 47.30 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 23.60 C K Index: 24.60 Risk: 20-40 % chance of thunderstorms Sweat Index: 60.60 Risk: None Energy Index: 1.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 19.14 J/kg Max Up Vert Vel: 6.19 m/s Conv Inhibition (B-): 2.51 J/kg Cap Strength: 4.09 C Lift Cond Lev (LCL): 932.30 mb = 762.78 m = 2502.52 ft Lev Free Conv (LFC): 887.30 mb = 1167.56 m = 3830.53 ft Equ Level (EL): 757.30 mb = 2437.52 m = 7997.02 ft B at Equ Level: 18.95 J/kg Max Parcel Lev (MPL): 667.30 mb = 3427.43 m = 11244.73 ft Wind level data Storm motion: 24 at 10 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 1010 103 35 5 -2.9 -4.1 | 193 5 1.2 5.2 1 1000 181 35 5 -2.9 -4.1 | 193 5 1.2 5.2 2 925 828 30 5 -2.5 -4.3 | 198 5 1.6 4.9 3 850 1518 15 9 -2.3 -8.7 | 252 2 1.7 0.6 4 700 3064 355 19 1.7 -18.9 | 329 11 5.7 -9.7 5 500 5620 335 15 6.3 -13.6 | 293 11 10.4 -4.3 6 400 7230 35 5 -2.9 -4.1 | 193 5 1.2 5.2 7 300 9170 155 21 -8.9 19.0 | 170 29 -4.8 28.3 8 250 10350 190 9 1.6 8.9 | 197 19 5.6 18.1 9 249 10376 195 9 2.3 8.7 | 200 19 6.4 17.9 10 200 11770 285 13 12.6 -3.4 | 251 18 16.6 5.9 11 150 13600 270 7 7.0 -0.0 | 230 14 11.1 9.2 12 100 16170 250 17 16.0 5.8 | 233 25 20.0 15.1 Wind Parameters Mean winds (0-6000m): 353.8 at 13.5 knts Storm direction: 23.8 at 10.1 knts Shear (0-3000m) pos: 0.0 neg: 2.7 tot: 2.7 10-3/s Storm rel Dir Shear (0-3000m): 135.7 deg Storm rel helicity (0-3000m) pos: 4.7 neg: -0.9 tot: 3.8 m^2/s^2 ave: 1.3 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 2.8 stream: 1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.40 Bulk Shear: 13.64 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 34 5 194 5| 0.0 0.3 0.3| 0.4 0.0 0.4 0.7 0.95| 0.3 0.3 1000 31 5 196 5| 0.0 1.0 1.0| 1.0 0.0 1.0 1.0 0.38| 1.1 0.4 1500 25 6 202 4| 0.0 1.8 1.8| 2.5 0.0 2.5 1.7 0.62| 1.9 1.1 2000 19 7 216 3| 0.0 2.2 2.2| 4.0 0.0 4.0 2.0 0.63| 2.3 1.4 2500 14 9 251 2| 0.0 2.5 2.5| 4.7 0.0 4.7 1.9 0.49| 2.6 1.3 3000 8 10 290 3| 0.0 2.7 2.7| 4.7 -0.9 3.8 1.3 0.36| 2.8 1.0 4000 2 12 309 5| 0.0 1.9 1.9| 4.7 -9.6 -4.8 -1.2 0.15| 2.4 0.4 5000 357 13 309 6| 0.0 1.4 1.4| 4.7 -17.7 -12.9 -2.6 0.01| 2.2 0.0 6000 354 13 307 7| 0.4 1.1 1.6| 6.2 -21.7 -15.5 -2.6 -0.02| 2.4 -0.1 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20250426.12.gif