UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050312.upa.cvt Date: 1200Z 3 MAY 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 3 MAY 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 1000 103 21.2 13.2 60 8.0 16.1 200 1 294.4 296.1 289.3 321.8 9.57 1 925 757 12.6 11.1 91 1.5 11.7 130 1 292.2 293.8 288.1 317.8 9.00 2 850 1465 9.2 6.7 84 2.5 7.8 45 7 295.8 297.1 287.7 316.9 7.26 3 700 3046 -1.1 -8.1 59 7.0 -3.9 120 5 301.3 301.8 285.4 310.4 2.96 4 500 5650 -16.9 -32.9 24 16.0 -19.8 255 1 312.4 312.5 286.8 314.1 0.48 5 400 7280 -29.5 -46.5 18 17.0 -31.0 135 7 316.6 316.7 287.8 317.2 0.15 6 300 9250 -46.3 -53.3 45 7.0 -46.6 85 27 320.1 320.1 288.9 320.4 0.09 7 250 10440 -55.5 -64.5 32 9.0 -55.6 80 31 323.6 323.6 289.9 323.7 0.03 8 220 11245 -60.5 -70.5 26 10.0 -60.6 85 9 327.9 327.9 291.1 327.9 0.01 9 200 11840 -59.7 -77.7 8 18.0 -59.9 80 13 338.2 338.2 293.9 338.2 0.00 10 150 13660 -58.3 -88.3 1 30.0 -58.6 75 5 369.6 369.6 300.5 369.6 0.00 11 100 16240 -55.9 -86.9 1 31.0 -56.4 225 5 419.7 419.7 307.7 419.7 0.00 TRP 220 11245 -60.5 -70.5 26 10.0 -60.6 85 9 327.9 327.9 291.1 327.9 0.01 WND Sounding variables and indices 1000-500 mb thick: 5547.00 m Freezing level: 716.02 mb = 2877.16 m = 9439.37 ft Wetbulb zero: 750.00 mb = 2484.23 m = 8150.26 ft Precipitable water: 0.98 inches Sfc-500 mean rel hum: 59.26 % Est. max temperature: 22.63 C = 72.74 F Sfc-Lift cond lev (LCL): 888.46 mb = 1094.51 m = 3590.87 ft T: 10.98 C 700-500 lapse rate: 6.07 C/km ThetaE index: 11.46 C Layer 925.0- 500.0 mb Conv cond level (CCL): 879.00 mb = 1184.06 m = 3884.66 ft Mean mixing ratio: 9.14 g/kg Conv temperature: 21.21 C = 70.18 F Cap Strength: 0.51 C Lifted Index: -0.10 C Risk: Thunderstorms probable Lifted Index @300 mb: 1.08 C Lifted Index @700 mb: -1.24 C Showalter Index: 1.24 C Risk: Showers probable Total Totals Index: 49.70 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.10 C Cross Totals Index: 23.60 C K Index: 25.80 Risk: 40-60 % chance of thunderstorms Sweat Index: 109.40 Risk: None Energy Index: -0.57 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 122.67 J/kg Max Up Vert Vel: 15.66 m/s Conv Inhibition (B-): 13.88 J/kg Cap Strength: 1.21 C Lift Cond Lev (LCL): 894.95 mb = 1033.53 m = 3390.80 ft Lev Free Conv (LFC): 799.95 mb = 1959.17 m = 6427.65 ft Equ Level (EL): 419.95 mb = 6924.47 m = 22717.80 ft B at Equ Level: 122.65 J/kg Max Parcel Lev (MPL): 259.95 mb = 10185.26 m = 33415.81 ft Wind level data Storm motion: 126 at 3 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 103 200 1 0.3 0.9 | 284 3 2.5 -0.6 1 1000 98 210 1 0.5 0.9 | 285 3 2.7 -0.7 2 925 757 130 1 -0.8 0.6 | 303 2 1.4 -0.9 3 850 1465 45 7 -4.9 -4.9 | 23 7 -2.8 -6.5 4 700 3046 120 5 -4.3 2.5 | 113 2 -2.1 0.9 5 500 5650 255 1 1.0 0.3 | 293 3 3.2 -1.3 6 400 7280 135 7 -4.9 4.9 | 141 4 -2.8 3.4 7 300 9250 85 27 -26.9 -2.4 | 81 25 -24.7 -3.9 8 250 10440 80 31 -30.5 -5.4 | 76 29 -28.3 -7.0 9 220 11245 85 9 -9.0 -0.8 | 71 7 -6.8 -2.4 10 200 11840 80 13 -12.8 -2.3 | 70 11 -10.6 -3.8 11 150 13660 75 5 -4.8 -1.3 | 43 4 -2.6 -2.9 12 100 16240 225 5 3.5 3.5 | 251 6 5.7 2.0 Wind Parameters Mean winds (0-6000m): 95.8 at 3.6 knts Storm direction: 125.8 at 2.7 knts Shear (0-3000m) pos: 1.2 neg: 1.3 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): -165.3 deg Storm rel helicity (0-3000m) pos: 8.6 neg: -2.5 tot: 6.1 m^2/s^2 ave: 2.0 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 3.1 stream: 1.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 69.10 Bulk Shear: 1.78 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 ------------------------------------------------------------------------------- 500 182 1 285 2| 0.0 1.0 1.0| 0.2 -0.0 0.2 0.3 0.28| 1.1 0.3 1000 123 2 309 1| 0.0 2.3 2.3| 0.8 -0.0 0.8 0.8 0.52| 2.5 1.3 1500 60 3 7 3| 0.0 2.7 2.7| 1.7 -2.5 -0.9 -0.6 0.11| 3.6 0.4 2000 61 4 19 4| 0.7 2.0 2.7| 5.0 -2.5 2.5 1.2 0.25| 3.4 0.9 2500 67 4 29 4| 1.1 1.6 2.6| 7.2 -2.5 4.6 1.9 0.34| 3.2 1.1 3000 74 4 36 4| 1.2 1.3 2.5| 8.6 -2.5 6.1 2.0 0.41| 3.1 1.3 4000 90 4 54 3| 1.2 1.0 2.2| 10.8 -2.5 8.2 2.1 0.51| 2.8 1.4 5000 94 4 55 2| 0.9 0.8 1.7| 13.0 -2.5 10.4 2.1 0.56| 2.6 1.4 6000 96 4 49 2| 0.7 0.5 1.2| 13.9 -4.4 9.5 1.6 0.47| 2.4 1.1 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20250503.12.gif