UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042700.upa.cvt Date: 0000Z 27 APR 25 Searching for LFRB... Searching the city database file for: LFRB ... Date:0000Z 27 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 1014 103 8.6 6.0 84 2.6 7.3 20 5 280.6 281.6 279.8 296.5 5.78 1 1000 212 10.8 8.5 86 2.3 9.5 5 7 284.0 285.2 282.7 303.2 6.97 2 925 858 6.8 4.2 83 2.6 5.5 0 5 286.3 287.2 282.2 302.0 5.59 3 850 1550 3.4 1.6 88 1.8 2.5 355 7 289.7 290.6 283.1 304.2 5.05 4 700 3107 -3.5 -8.5 68 5.0 -5.4 350 15 298.6 299.1 284.3 307.4 2.87 5 500 5690 -19.5 -42.5 11 23.0 -22.4 5 27 309.3 309.3 285.3 309.9 0.18 6 400 7300 -31.3 -50.3 14 19.0 -32.7 350 35 314.3 314.3 287.0 314.7 0.10 7 300 9270 -47.5 -58.5 27 11.0 -47.8 355 36 318.4 318.4 288.3 318.6 0.05 8 250 10450 -56.5 -64.5 36 8.0 -56.6 330 46 322.1 322.1 289.4 322.2 0.03 9 202 11779 -63.9 -70.9 38 7.0 -64.0 295 29 330.6 330.6 291.9 330.7 0.01 10 200 11840 -63.3 -70.3 38 7.0 -63.4 300 29 332.5 332.5 292.4 332.6 0.01 11 150 13630 -58.9 -80.9 4 22.0 -59.1 275 11 368.6 368.6 300.3 368.6 0.00 12 100 16190 -57.3 -87.3 1 30.0 -57.7 300 7 417.0 417.0 307.4 417.0 0.00 TRP 202 11779 -63.9 -70.9 38 7.0 -64.0 295 29 330.6 330.6 291.9 330.7 0.01 WND Sounding variables and indices 1000-500 mb thick: 5478.00 m Freezing level: 776.09 mb = 2317.22 m = 7602.33 ft Wetbulb zero: 802.20 mb = 2014.13 m = 6607.96 ft Precipitable water: 0.75 inches Sfc-500 mean rel hum: 61.57 % Est. max temperature: 17.04 C = 62.68 F Sfc-Lift cond lev (LCL): 974.59 mb = 425.24 m = 1395.12 ft T: 9.48 C 700-500 lapse rate: 6.19 C/km ThetaE index: 1.25 C Layer 925.0- 850.0 mb Conv cond level (CCL): 886.04 mb = 1210.21 m = 3970.45 ft Mean mixing ratio: 6.21 g/kg Conv temperature: 16.01 C = 60.82 F Cap Strength: 4.68 C Lifted Index: 7.90 C Risk: None Lifted Index @300 mb: 11.60 C Lifted Index @700 mb: 4.68 C Showalter Index: 6.55 C Risk: None Total Totals Index: 44.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.90 C Cross Totals Index: 21.10 C K Index: 19.50 Risk: < 20 % chance of thunderstorms Sweat Index: 60.20 Risk: None Energy Index: 1.24 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 9.85 J/kg Max Up Vert Vel: 4.44 m/s Conv Inhibition (B-): 10772.81 J/kg Cap Strength: 7.71 C Lift Cond Lev (LCL): 928.24 mb = 828.99 m = 2719.77 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 29 at 12 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 1014 103 20 5 -1.7 -4.7 | 215 7 3.9 5.5 1 1000 212 5 7 -0.6 -7.0 | 237 6 5.0 3.2 2 925 858 0 5 -0.0 -5.0 | 227 8 5.6 5.2 3 850 1550 355 7 0.6 -7.0 | 243 7 6.2 3.2 4 700 3107 350 15 2.6 -14.8 | 299 9 8.2 -4.6 5 500 5690 5 27 -2.4 -26.9 | 349 17 3.2 -16.7 6 400 7300 350 35 6.1 -34.5 | 334 27 11.6 -24.3 7 300 9270 355 36 3.1 -35.9 | 341 27 8.7 -25.7 8 250 10450 330 46 23.0 -39.8 | 316 41 28.6 -29.7 9 202 11779 295 29 26.3 -12.3 | 274 32 31.8 -2.1 10 200 11840 300 29 25.1 -14.5 | 278 31 30.7 -4.3 11 150 13630 275 11 11.0 -1.0 | 241 19 16.5 9.2 12 100 16190 300 7 6.1 -3.5 | 240 13 11.6 6.7 Wind Parameters Mean winds (0-6000m): 358.7 at 15.4 knts Storm direction: 28.7 at 11.6 knts Shear (0-3000m) pos: 0.0 neg: 1.9 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 84.1 deg Storm rel helicity (0-3000m) pos: 21.0 neg: -1.6 tot: 19.4 m^2/s^2 ave: 6.5 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 2.4 stream: 1.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.88 Bulk Shear: 11.23 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 5 6 232 6| 0.0 1.9 1.9| 3.6 -0.9 2.7 5.4 0.48| 3.6 1.7 1000 3 6 231 7| 0.0 1.1 1.1| 4.7 -1.6 3.1 3.1 0.39| 2.5 1.0 1500 1 6 233 7| 0.0 1.2 1.2| 7.6 -1.6 6.0 4.0 0.53| 2.2 1.2 2000 358 7 239 7| 0.0 1.5 1.5| 12.2 -1.6 10.5 5.3 0.66| 2.3 1.5 2500 356 8 246 7| 0.0 1.7 1.7| 16.7 -1.6 15.0 6.0 0.72| 2.4 1.7 3000 355 9 256 7| 0.0 1.9 1.9| 21.0 -1.6 19.4 6.5 0.73| 2.4 1.8 4000 354 11 274 7| 0.6 1.4 2.0| 33.1 -1.6 31.4 7.9 0.77| 2.5 1.9 5000 356 13 294 7| 1.0 1.1 2.2| 47.2 -1.6 45.6 9.1 0.77| 2.5 1.9 6000 359 15 312 8| 1.1 1.2 2.3| 56.8 -7.5 49.3 8.2 0.66| 2.6 1.7 Wrote GIF file: /home/apache/climate/data/raob//LFRB/skewt/LFRB.skewt.20250427.00.gif