UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050112.upa.cvt Date: 1200Z 1 MAY 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:1200Z 1 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 1003 103 20.6 10.6 53 10.0 14.6 145 9 293.5 294.9 287.6 316.5 8.02 1 1000 123 18.8 10.8 60 8.0 14.0 145 9 292.0 293.4 287.2 315.2 8.15 2 925 785 14.6 7.6 63 7.0 10.6 145 23 294.2 295.5 287.0 314.7 7.09 3 850 1496 11.6 2.6 54 9.0 6.8 150 11 298.3 299.3 286.9 314.4 5.43 4 700 3085 0.6 0.6 100 0.0 0.6 175 19 303.1 304.2 288.9 320.4 5.72 5 500 5690 -18.7 -19.3 95 0.6 -18.8 180 35 310.2 310.6 287.3 315.7 1.66 6 400 7320 -30.5 -33.5 75 3.0 -30.9 160 33 315.3 315.5 287.9 317.3 0.57 7 300 9290 -46.1 -50.7 60 4.6 -46.3 140 46 320.4 320.4 289.0 320.8 0.12 8 250 10480 -56.9 -61.7 54 4.8 -57.0 140 50 321.5 321.5 289.2 321.6 0.04 9 249 10505 -57.3 -62.3 53 5.0 -57.4 145 50 321.2 321.3 289.2 321.4 0.04 10 200 11880 -58.9 -71.9 17 13.0 -59.0 170 27 339.5 339.5 294.2 339.5 0.01 11 150 13690 -55.3 -80.3 3 25.0 -55.6 180 13 374.8 374.8 301.4 374.8 0.00 12 100 16260 -58.1 -88.1 1 30.0 -58.5 235 7 415.5 415.5 307.2 415.5 0.00 TRP 249 10505 -57.3 -62.3 53 5.0 -57.4 145 50 321.2 321.3 289.2 321.4 0.04 WND Sounding variables and indices 1000-500 mb thick: 5567.00 m Freezing level: 693.78 mb = 3165.98 m = 10386.96 ft Wetbulb zero: 693.77 mb = 3154.18 m = 10348.24 ft Precipitable water: 1.11 inches Sfc-500 mean rel hum: 82.78 % Est. max temperature: 25.23 C = 77.42 F Sfc-Lift cond lev (LCL): 864.73 mb = 1351.55 m = 4434.15 ft T: 12.21 C 700-500 lapse rate: 7.41 C/km ThetaE index: 2.13 C Layer 1000.0- 700.0 mb Conv cond level (CCL): 763.57 mb = 2373.55 m = 7787.15 ft Mean mixing ratio: 7.45 g/kg Conv temperature: 28.14 C = 82.64 F Cap Strength: 4.55 C Lifted Index: 0.62 C Risk: Showers probable Lifted Index @300 mb: 4.21 C Lifted Index @700 mb: 2.40 C Showalter Index: 0.91 C Risk: Thunderstorms probable Total Totals Index: 51.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 30.30 C Cross Totals Index: 21.30 C K Index: 32.90 Risk: 60-80 % chance of thunderstorms Sweat Index: 140.20 Risk: None Energy Index: 0.25 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.28 J/kg Max Up Vert Vel: 4.31 m/s Conv Inhibition (B-): 8541.24 J/kg Cap Strength: 4.54 C Lift Cond Lev (LCL): 851.19 mb = 1484.28 m = 4869.63 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 201 at 17 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 1003 103 145 9 -5.2 7.4 | 54 14 -11.0 -8.1 1 1000 123 145 9 -5.2 7.4 | 54 14 -11.0 -8.1 2 925 785 145 23 -13.2 18.8 | 100 19 -19.1 3.4 3 850 1496 150 11 -5.5 9.5 | 62 13 -11.4 -6.0 4 700 3085 175 19 -1.7 18.9 | 115 8 -7.5 3.4 5 500 5690 180 35 0.0 35.0 | 163 20 -5.9 19.5 6 400 7320 160 33 -11.3 31.0 | 132 23 -17.2 15.5 7 300 9290 140 46 -29.6 35.2 | 119 41 -35.4 19.8 8 250 10480 140 50 -32.1 38.3 | 121 44 -38.0 22.8 9 249 10505 145 50 -28.7 41.0 | 126 43 -34.6 25.5 10 200 11880 170 27 -4.7 26.6 | 136 15 -10.6 11.1 11 150 13690 180 13 0.0 13.0 | 67 6 -5.9 -2.5 12 100 16260 235 7 5.7 4.0 | 1 11 -0.1 -11.5 Wind Parameters Mean winds (0-6000m): 170.8 at 22.1 knts Storm direction: 200.8 at 16.6 knts Shear (0-3000m) pos: 1.7 neg: 1.7 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 61.6 deg Storm rel helicity (0-3000m) pos: 75.4 neg: -38.0 tot: 37.3 m^2/s^2 ave: 12.4 10^-3 m/s^2 rel: 0.33 Storm rel vorticity (0-3000m) horiz: 6.2 stream: 2.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.54 Bulk Shear: 17.07 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 ------------------------------------------------------------------------------- 500 145 14 73 14| 0.0 10.4 10.4| 36.8 0.0 36.8 73.6 0.93| 10.5 9.7 1000 145 17 85 16| 0.9 5.2 6.1| 49.8 -16.0 33.8 33.8 0.46| 9.7 4.5 1500 146 16 82 15| 2.7 3.5 6.2| 51.5 -38.0 13.5 9.0 0.12| 8.9 1.1 2000 148 15 80 14| 1.7 2.6 4.3| 59.9 -38.0 21.9 10.9 0.20| 7.5 1.5 2500 152 15 81 13| 1.5 2.1 3.6| 67.8 -38.0 29.7 11.9 0.27| 6.7 1.8 3000 156 16 85 12| 1.7 1.7 3.4| 75.4 -38.0 37.3 12.4 0.33| 6.2 2.1 4000 163 17 95 11| 1.7 1.3 3.0| 88.1 -38.0 50.1 12.5 0.40| 5.4 2.2 5000 168 20 110 11| 1.9 1.0 3.0|101.8 -38.0 63.8 12.8 0.42| 5.0 2.1 6000 171 22 124 11| 1.9 1.0 2.9|110.2 -54.3 55.9 9.3 0.35| 4.7 1.6 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20250501.12.gif