UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042800.upa.cvt Date: 0000Z 28 APR 25 Searching for X8341... Searching the city database file for: X8341 ... Date:0000Z 28 APR 25 Station: X8341 WMO ident: 38341 Latitude: 42.85 Longitude: 71.38 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 108 SFC 940 646 20.2 14.2 68 6.0 16.3 190 9 298.6 300.6 291.8 330.3 10.89 2 925 785 18.6 11.6 64 7.0 14.2 215 15 298.3 300.0 290.4 325.5 9.31 3 921 820 18.4 11.4 64 7.0 14.0 214 17 298.5 300.2 290.4 325.5 9.23 4 500 5410 -26.9 -31.4 66 4.5 -27.5 290 40 300.2 300.3 282.2 302.1 0.55 5 400 7020 -27.1 -33.1 57 6.0 -28.0 300 38 319.8 319.9 289.3 321.9 0.59 6 370 7582 -27.1 -33.1 57 6.0 -28.1 327.0 327.1 291.5 329.3 0.64 TRP WND Sounding variables and indices 1000-500 mb thick: 5302.00 m Freezing level: 750.00 mb = 2684.32 m = 8806.73 ft Wetbulb zero: 778.88 mb = 2079.30 m = 6821.76 ft Precipitable water: 0.92 inches Sfc-500 mean rel hum: 64.67 % Est. max temperature: 21.30 C = 70.35 F Sfc-Lift cond lev (LCL): 860.17 mb = 1333.38 m = 4374.55 ft T: 13.33 C 700-500 lapse rate: 9.87 C/km ThetaE index: 28.25 C Layer 925.0- 400.0 mb Conv cond level (CCL): 795.71 mb = 1918.72 m = 6294.93 ft Mean mixing ratio: 8.24 g/kg Conv temperature: 21.26 C = 70.27 F Cap Strength: 0.73 C Lifted Index: -12.10 C Risk: Severe thunderstorms probable Lifted Index @700 mb: -3.61 C Showalter Index: -10.10 C Risk: Severe thunderstorms probable Total Totals Index: 72.03 C Risk: Severe Thunderstorms probable Vertical Totals Index: 39.35 C Cross Totals Index: 32.68 C K Index: 39.25 Risk: > 80 % chance of thunderstorms Sweat Index: 748.28 Risk: Severe Thunderstorms possible Energy Index: -3.89 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1228.22 J/kg Max Up Vert Vel: 49.56 m/s Conv Inhibition (B-): 9.37 J/kg Cap Strength: 0.73 C Lift Cond Lev (LCL): 805.65 mb = 1825.43 m = 5988.88 ft Lev Free Conv (LFC): 780.65 mb = 2062.30 m = 6766.00 ft Equ Level (EL): 400.65 mb = 7008.34 m = 22992.96 ft B at Equ Level: 1227.06 J/kg Wind level data Storm motion: 299 at 24 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 ---------------------------------------------------------- 0 940 646 190 9 1.6 8.9 | 136 28 -19.8 20.5 1 925 785 215 15 8.6 12.3 | 152 27 -12.7 23.9 2 850 1479 205 48 20.3 43.5 | 179 55 -1.0 55.1 3 700 2979 285 19 18.4 -4.9 | 156 7 -3.0 6.7 4 500 5410 290 40 37.6 -13.7 | 277 16 16.3 -2.1 5 400 7020 300 38 32.9 -19.0 | 303 14 11.6 -7.4 Wind Parameters Mean winds (0-6000m): 268.6 at 32.4 knts Storm direction: 298.6 at 24.3 knts Shear (0-3000m) pos: 4.7 neg: 0.0 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 71.8 deg Storm rel helicity (0-3000m) pos: 407.1 neg: -18.9 tot: 388.2 m^2/s^2 ave: 129.4 10^-3 m/s^2 rel: 0.39 Storm rel vorticity (0-3000m) horiz: 17.0 stream: 6.5 10^-3/s Energy-Hel index: 3.07 Bulk Rich Number: 12.15 Bulk Shear: 101.09 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 ------------------------------------------------------------------------------- 500 211 20 159 31| 24.6 0.0 24.6|155.5 0.0 155.5 311.0 0.78| 25.5 19.8 1000 208 31 170 40| 18.9 0.0 18.9|286.6 0.0 286.6 286.6 0.63| 23.9 15.1 1500 214 34 177 40| 10.4 0.0 10.4|388.5 0.0 388.5 259.0 0.58| 23.1 13.3 2000 219 33 179 38| 6.4 0.0 6.4|399.9 -4.1 395.8 197.9 0.47| 21.8 10.2 2500 221 31 179 35| 4.8 0.0 4.8|401.2 -18.9 382.2 152.9 0.36| 19.5 7.0 3000 229 30 182 31| 4.7 0.0 4.7|407.1 -18.9 388.2 129.4 0.39| 17.0 6.5 4000 246 29 194 24| 4.6 0.0 4.6|419.4 -18.9 400.5 100.1 0.42| 13.9 5.8 5000 260 31 208 19| 4.4 0.0 4.4|433.7 -18.9 414.7 82.9 0.42| 11.9 5.0 6000 269 32 222 17| 3.6 0.0 3.6|449.8 -18.9 430.9 71.8 0.44| 10.3 4.5 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20250428.00.gif