UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050412.upa.cvt Date: 1200Z 4 MAY 25 Searching for LFBD... Searching the city database file for: LFBD ... Date:1200Z 4 MAY 25 Station: LFBD WMO ident: 7510 Latitude: 44.83 Longitude: -0.70 Elevation: 61.00 ------------------------------------------------------------------------------- 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 1004 61 21.0 15.0 69 6.0 17.1 300 7 293.8 295.7 290.1 324.5 10.73 1 1000 83 19.8 13.8 68 6.0 16.0 300 7 293.0 294.7 289.2 321.4 9.96 2 925 747 13.2 10.9 86 2.3 11.8 290 9 292.8 294.4 288.2 318.2 8.88 3 850 1454 9.2 5.0 75 4.2 6.9 285 5 295.8 296.9 286.9 314.6 6.44 4 700 3029 -2.3 -2.3 100 0.0 -2.3 110 1 299.9 300.8 286.6 313.8 4.62 5 500 5610 -19.7 -31.7 34 12.0 -21.8 225 3 309.0 309.1 285.7 310.9 0.54 6 400 7230 -31.9 -43.9 29 12.0 -32.9 205 15 313.5 313.6 286.8 314.2 0.19 7 300 9180 -49.7 -57.7 39 8.0 -49.9 195 15 315.3 315.3 287.2 315.5 0.05 8 267 9937 -55.5 -59.3 62 3.8 -55.6 200 17 317.5 317.5 288.0 317.7 0.05 9 250 10360 -53.3 -71.3 9 18.0 -53.5 185 21 326.8 326.8 290.8 326.9 0.01 10 200 11790 -52.3 -77.3 3 25.0 -52.7 215 19 349.9 349.9 296.6 350.0 0.01 11 150 13640 -54.9 -85.9 1 31.0 -55.3 205 23 375.5 375.5 301.5 375.5 0.00 12 100 16240 -55.5 -86.5 1 31.0 -56.0 260 13 420.5 420.5 307.8 420.5 0.00 TRP 267 9937 -55.5 -59.3 62 3.8 -55.6 200 17 317.5 317.5 288.0 317.7 0.05 WND Sounding variables and indices 1000-500 mb thick: 5527.00 m Freezing level: 730.00 mb = 2714.00 m = 8904.09 ft Wetbulb zero: 737.65 mb = 2603.97 m = 8543.10 ft Precipitable water: 1.08 inches Sfc-500 mean rel hum: 75.39 % Est. max temperature: 22.81 C = 73.05 F Sfc-Lift cond lev (LCL): 918.91 mb = 802.21 m = 2631.89 ft T: 12.89 C 700-500 lapse rate: 6.74 C/km ThetaE index: 13.63 C Layer 1000.0- 400.0 mb Conv cond level (CCL): 878.12 mb = 1181.82 m = 3877.32 ft Mean mixing ratio: 9.26 g/kg Conv temperature: 21.82 C = 71.28 F Cap Strength: 0.78 C Lifted Index: -2.99 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.43 C Lifted Index @700 mb: -2.50 C Showalter Index: -0.21 C Risk: Thunderstorms probable Total Totals Index: 53.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.90 C Cross Totals Index: 24.70 C K Index: 33.90 Risk: 60-80 % chance of thunderstorms Sweat Index: 165.00 Risk: None Energy Index: -0.78 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 786.34 J/kg Max Up Vert Vel: 39.66 m/s Conv Inhibition (B-): 15.01 J/kg Cap Strength: 0.85 C Lift Cond Lev (LCL): 899.91 mb = 976.95 m = 3205.16 ft Lev Free Conv (LFC): 824.91 mb = 1697.08 m = 5567.77 ft Equ Level (EL): 264.91 mb = 9987.19 m = 32765.96 ft B at Equ Level: 784.90 J/kg Max Parcel Lev (MPL): 204.91 mb = 11634.64 m = 38170.94 ft Wind level data Storm motion: 298 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 1004 61 300 7 6.1 -3.5 | 301 4 3.6 -2.2 1 1000 83 300 7 6.1 -3.5 | 301 4 3.6 -2.2 2 925 747 290 9 8.5 -3.1 | 287 6 6.0 -1.8 3 850 1454 285 5 4.8 -1.3 | 270 2 2.4 -0.0 4 700 3029 110 1 -0.9 0.3 | 116 4 -3.4 1.6 5 500 5610 225 3 2.1 2.1 | 175 3 -0.3 3.4 6 400 7230 205 15 6.3 13.6 | 195 15 3.9 14.9 7 300 9180 195 15 3.9 14.5 | 185 16 1.5 15.8 8 267 9937 200 17 5.8 16.0 | 191 18 3.4 17.3 9 250 10360 185 21 1.8 20.9 | 178 22 -0.6 22.2 10 200 11790 215 19 10.9 15.6 | 207 19 8.5 16.9 11 150 13640 205 23 9.7 20.8 | 198 23 7.3 22.1 12 100 16240 260 13 12.8 2.3 | 251 11 10.4 3.5 Wind Parameters Mean winds (0-6000m): 268.0 at 3.7 knts Storm direction: 298.0 at 2.8 knts Shear (0-3000m) pos: 0.0 neg: 1.4 tot: 1.4 10-3/s Storm rel Dir Shear (0-3000m): 174.9 deg Storm rel helicity (0-3000m) pos: 0.0 neg: -12.3 tot: -12.3 m^2/s^2 ave: -4.1 10^-3 m/s^2 rel: -0.73 Storm rel vorticity (0-3000m) horiz: 2.8 stream: -2.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 260.88 Bulk Shear: 3.01 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 ------------------------------------------------------------------------------- 500 296 8 295 5| 0.0 1.8 1.8| 0.0 -1.3 -1.3 -2.5 -0.55| 1.8 -1.0 1000 293 8 290 5| 0.0 0.8 0.8| 0.0 -2.5 -2.5 -2.5 -0.44| 2.1 -0.9 1500 291 7 287 5| 0.0 1.2 1.2| 0.0 -3.8 -3.8 -2.5 -0.48| 2.5 -1.2 2000 286 7 278 4| 0.0 1.9 1.9| 0.0 -7.1 -7.1 -3.5 -0.64| 3.0 -1.9 2500 286 6 275 3| 0.0 1.8 1.8| 0.0 -10.5 -10.5 -4.2 -0.71| 3.0 -2.1 3000 290 5 280 2| 0.0 1.4 1.4| 0.0 -12.3 -12.3 -4.1 -0.73| 2.8 -2.0 4000 287 4 266 2| 0.2 1.0 1.2| 1.3 -12.3 -11.0 -2.8 -0.60| 2.3 -1.4 5000 277 4 237 1| 0.3 0.8 1.1| 3.4 -12.3 -9.0 -1.8 -0.45| 2.0 -0.9 6000 268 4 221 2| 0.3 0.7 1.0| 6.3 -12.3 -6.0 -1.0 -0.26| 2.1 -0.5 Wrote GIF file: /home/apache/climate/data/raob//LFBD/skewt/LFBD.skewt.20250504.12.gif