UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042012.upa.cvt Date: 1200Z 20 APR 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 20 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 151 SFC 944 616 19.2 8.2 49 11.0 12.7 45 17 297.2 298.5 288.2 318.4 7.24 2 941 642 17.8 6.8 48 11.0 11.5 47 15 296.1 297.2 287.2 315.3 6.59 3 926 771 17.2 6.2 48 11.0 11.0 54 8 296.8 298.0 287.3 315.6 6.43 4 454 6016 -38.3 -45.3 48 7.0 -38.7 106 22 294.4 294.4 279.0 294.9 0.15 5 400 6850 -43.7 -49.7 51 6.0 -43.9 115 21 298.2 298.2 280.7 298.6 0.10 6 394 6951 -45.3 -51.3 51 6.0 -45.5 117 23 297.4 297.4 280.3 297.7 0.09 7 300 8720 -55.5 -61.5 47 6.0 -55.6 155 52 307.1 307.1 284.2 307.2 0.03 8 284 9080 -57.7 -63.7 46 6.0 -57.8 155 39 308.8 308.8 284.9 308.9 0.03 9 250 9900 -64.1 -69.1 50 5.0 -64.1 155 9 310.8 310.8 285.6 310.8 0.01 10 244 10056 -66.3 -71.3 49 5.0 -66.3 166 10 309.6 309.6 285.2 309.7 0.01 11 207 11089 -72.9 -77.9 47 5.0 -72.9 244 17 314.2 314.2 286.8 314.2 0.00 12 200 11300 -75.1 -79.8 48 4.7 -75.1 260 19 313.8 313.8 286.7 313.8 0.00 13 192 11535 -78.1 -83.0 45 4.9 -78.1 312.7 312.7 286.3 312.7 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5154.94 m Freezing level: 779.72 mb = 2396.66 m = 7862.97 ft Wetbulb zero: 821.67 mb = 1650.85 m = 5416.10 ft Precipitable water: 0.67 inches Sfc-500 mean rel hum: 47.95 % Est. max temperature: 19.35 C = 66.83 F Sfc-Lift cond lev (LCL): 801.30 mb = 1835.55 m = 6022.06 ft T: 5.94 C 700-500 lapse rate: 10.58 C/km ThetaE index: 3.08 C Layer 941.0- 926.0 mb Conv cond level (CCL): 755.57 mb = 2267.95 m = 7440.68 ft Mean mixing ratio: 5.60 g/kg Conv temperature: 19.42 C = 66.95 F Cap Strength: 0.47 C Lifted Index: -10.59 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -4.13 C Lifted Index @700 mb: -2.09 C Showalter Index: -8.83 C Risk: Severe thunderstorms probable Total Totals Index: 72.11 C Risk: Severe Thunderstorms probable Vertical Totals Index: 41.32 C Cross Totals Index: 30.80 C K Index: 31.90 Risk: 60-80 % chance of thunderstorms Sweat Index: 501.17 Risk: Severe Thunderstorms possible Energy Index: -3.34 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2223.12 J/kg Max Up Vert Vel: 66.68 m/s Conv Inhibition (B-): 10.04 J/kg Cap Strength: 0.47 C Lift Cond Lev (LCL): 761.09 mb = 2214.37 m = 7264.92 ft Lev Free Conv (LFC): 746.09 mb = 2360.85 m = 7745.47 ft Equ Level (EL): 206.09 mb = 11116.39 m = 36470.66 ft B at Equ Level: 2218.89 J/kg Wind level data Storm motion: 117 at 14 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 ---------------------------------------------------------- 0 944 616 45 17 -12.0 -12.0 | 358 19 0.8 -18.6 1 925 827 55 7 -5.7 -4.0 | 326 13 7.1 -10.6 2 850 1516 55 35 -28.7 -20.1 | 31 31 -15.8 -26.6 3 700 3021 105 9 -8.7 2.3 | 316 6 4.1 -4.2 4 500 5400 100 23 -22.7 4.0 | 75 10 -9.8 -2.6 5 400 6850 115 21 -19.0 8.9 | 110 7 -6.2 2.3 6 300 8720 155 52 -22.0 47.1 | 167 42 -9.1 40.6 7 250 9900 155 9 -3.8 8.2 | 260 9 9.0 1.6 8 200 11300 260 19 18.7 3.3 | 276 32 31.5 -3.3 Wind Parameters Mean winds (0-6000m): 87.1 at 19.2 knts Storm direction: 117.1 at 14.4 knts Shear (0-3000m) pos: 2.5 neg: 0.5 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): -8.3 deg Storm rel helicity (0-3000m) pos: 123.8 neg: -43.9 tot: 79.9 m^2/s^2 ave: 26.6 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 12.6 stream: 1.6 10^-3/s Energy-Hel index: 1.68 Bulk Rich Number: 129.30 Bulk Shear: 17.19 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 53 13 349 15| 3.7 0.0 3.7| 38.0 -29.7 8.3 16.6 0.12| 21.6 2.5 1000 55 21 12 19| 8.8 0.0 8.8|101.2 -29.7 71.5 71.5 0.31| 20.5 6.4 1500 59 24 21 20| 4.5 0.0 4.5|120.4 -29.7 90.7 60.5 0.30| 17.8 5.3 2000 62 23 23 19| 3.4 0.0 3.4|120.8 -34.8 86.0 43.0 0.22| 16.1 3.5 2500 62 21 18 17| 3.0 0.0 3.0|121.2 -43.9 77.2 30.9 0.10| 14.5 1.5 3000 66 19 17 15| 2.5 0.5 3.0|123.8 -43.9 79.9 26.6 0.13| 12.6 1.6 4000 74 18 21 12| 1.9 1.1 3.0|129.2 -43.9 85.2 21.3 0.18| 10.2 1.9 5000 81 19 31 11| 1.6 1.2 2.8|134.8 -43.9 90.9 18.2 0.20| 8.7 1.7 6000 87 19 40 10| 1.6 1.0 2.7|142.2 -43.9 98.2 16.4 0.23| 7.6 1.7 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20250420.12.gif