UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 9 DEC 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 200 SFC 946 652 3.0 1.5 90 1.5 2.3 295 3 280.6 281.3 278.2 293.0 4.50 2 925 834 1.8 -0.3 86 2.1 0.9 265 15 281.1 281.8 277.9 292.4 4.04 3 907 992 1.6 -2.5 74 4.1 -0.1 260 17 282.5 283.1 277.9 292.4 3.50 4 850 1513 -1.3 -1.9 96 0.6 -1.6 245 23 284.8 285.5 279.5 295.9 3.91 5 838 1626 -2.1 -2.1 100 0.0 -2.1 245 25 285.1 285.8 279.6 296.2 3.91 6 701 3029 -8.5 -8.5 100 0.0 -8.5 245 46 293.0 293.5 282.0 301.5 2.87 7 700 3040 -8.5 -8.5 100 0.0 -8.5 245 46 293.1 293.6 282.0 301.6 2.87 8 572 4592 -14.1 -14.1 100 0.0 -14.1 257 61 303.9 304.3 285.7 311.0 2.24 9 500 5600 -21.5 -21.5 100 0.0 -21.5 265 71 306.8 307.1 285.8 311.3 1.37 10 410 7027 -33.7 -34.2 95 0.5 -33.7 265 68 309.0 309.1 285.6 310.8 0.52 11 400 7200 -34.7 -35.4 93 0.7 -34.8 265 68 309.9 310.0 285.9 311.5 0.47 12 300 9150 -49.1 -51.7 74 2.6 -49.2 265 93 316.1 316.2 287.6 316.6 0.11 13 269 9856 -55.1 -58.5 66 3.4 -55.2 268 97 317.4 317.4 288.0 317.6 0.05 14 250 10320 -58.1 -61.9 62 3.8 -58.2 270 99 319.7 319.7 288.7 319.8 0.04 15 200 11690 -67.9 -72.9 49 5.0 -67.9 265 104 325.2 325.2 290.3 325.3 0.01 16 192 11935 -69.7 -74.6 49 4.9 -69.7 265 103 326.2 326.2 290.6 326.2 0.01 17 150 13430 -63.5 -67.4 59 3.9 -63.6 275 79 360.7 360.7 298.8 360.8 0.03 18 145 13637 -62.9 -67.0 58 4.1 -63.0 275 79 365.2 365.3 299.7 365.4 0.03 19 106 15545 -65.9 -71.9 43 6.0 -66.0 271 76 393.8 393.8 304.3 393.9 0.02 20 100 15900 -63.3 -69.3 44 6.0 -63.4 270 75 405.4 405.4 305.9 405.6 0.03 21 77 17498 -66.1 -73.1 37 7.0 -66.2 274 74 431.1 431.1 309.0 431.2 0.03 22 70 18080 -63.3 -71.3 33 8.0 -63.5 275 73 449.0 449.0 310.8 449.2 0.04 23 50 20160 -60.9 -71.9 22 11.0 -61.3 270 73 500.0 500.0 314.9 500.3 0.05 24 47 20545 -60.3 -71.3 22 11.0 -60.7 269 75 510.3 510.3 315.7 510.7 0.05 25 40 21542 -63.9 -75.9 18 12.0 -64.3 268 79 525.4 525.4 316.6 525.6 0.03 26 30 23310 -62.5 -78.5 10 16.0 -63.1 265 87 574.3 574.3 319.4 574.5 0.03 27 22 25226 -61.9 -89.9 1 28.0 -62.9 629.3 629.3 321.9 629.3 0.01 TRP 192 11935 -69.7 -74.6 49 4.9 -69.7 265 103 326.2 326.2 290.6 326.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 5400.00 m Freezing level: 875.55 mb = 1279.67 m = 4198.34 ft Wetbulb zero: 908.76 mb = 976.86 m = 3204.87 ft Precipitable water: 0.59 inches Sfc-500 mean rel hum: 97.37 % Est. max temperature: 9.68 C = 49.43 F Sfc-Lift cond lev (LCL): 924.20 mb = 840.94 m = 2758.96 ft T: 1.79 C 700-500 lapse rate: 5.08 C/km ThetaE index: 0.63 C Layer 925.0- 850.0 mb Conv cond level (CCL): 828.63 mb = 1714.55 m = 5625.09 ft Mean mixing ratio: 3.84 g/kg Conv temperature: 7.95 C = 46.31 F Cap Strength: 11.08 C Lifted Index: 12.03 C Risk: None Lifted Index @300 mb: 16.04 C Lifted Index @700 mb: 4.78 C Showalter Index: 10.38 C Risk: None Total Totals Index: 39.80 C Risk: None Vertical Totals Index: 20.20 C Cross Totals Index: 19.60 C K Index: 18.30 Risk: < 20 % chance of thunderstorms Sweat Index: 184.75 Risk: None Energy Index: 3.16 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.94 J/kg Max Up Vert Vel: 5.99 m/s Conv Inhibition (B-): 43789.48 J/kg Cap Strength: 11.97 C Lift Cond Lev (LCL): 863.51 mb = 1386.52 m = 4548.89 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 287 at 37 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 ---------------------------------------------------------- 0 946 652 295 3 2.7 -1.3 | 106 34 -32.4 9.4 1 925 834 265 15 14.9 1.3 | 121 23 -20.1 12.0 2 850 1513 245 23 20.8 9.7 | 145 25 -14.2 20.4 3 700 3040 245 46 41.7 19.4 | 192 31 6.6 30.1 4 500 5600 265 71 70.7 6.2 | 245 39 35.7 16.9 5 400 7200 265 68 67.7 5.9 | 243 37 32.7 16.6 6 300 9150 265 93 92.6 8.1 | 252 61 57.6 18.8 7 250 10320 270 99 99.0 -0.0 | 261 65 63.9 10.7 8 200 11690 265 104 103.6 9.1 | 254 71 68.5 19.7 9 192 11935 265 103 102.6 9.0 | 254 70 67.5 19.7 10 150 13430 275 79 78.7 -6.9 | 265 44 43.6 3.8 11 100 15900 270 75 75.0 -0.0 | 255 41 39.9 10.7 12 70 18080 275 73 72.7 -6.4 | 263 38 37.7 4.3 13 50 20160 270 73 73.0 -0.0 | 254 39 37.9 10.7 14 30 23310 265 87 86.7 7.6 | 251 55 51.6 18.3 Wind Parameters Mean winds (0-6000m): 256.9 at 48.9 knts Storm direction: 286.9 at 36.7 knts Shear (0-3000m) pos: 2.1 neg: 6.6 tot: 8.7 10-3/s Storm rel Dir Shear (0-3000m): 99.3 deg Storm rel helicity (0-3000m) pos: 316.8 neg: 0.0 tot: 316.8 m^2/s^2 ave: 105.6 10^-3 m/s^2 rel: 0.85 Storm rel vorticity (0-3000m) horiz: 9.2 stream: 7.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.11 Bulk Shear: 161.90 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 ------------------------------------------------------------------------------- 500 262 14 121 25| 0.0 17.0 17.0| 75.2 0.0 75.2 150.5 0.65| 18.0 11.7 1000 253 18 131 24| 0.0 12.0 12.0|121.9 0.0 121.9 121.9 0.74| 13.0 9.6 1500 249 21 141 24| 0.0 10.6 10.6|170.7 0.0 170.7 113.8 0.80| 11.3 9.0 2000 248 25 150 23| 0.0 9.8 9.8|219.6 0.0 219.6 109.8 0.82| 10.4 8.6 2500 247 29 159 24| 1.4 7.9 9.3|268.1 0.0 268.1 107.2 0.83| 9.8 8.1 3000 247 32 167 24| 2.1 6.6 8.7|316.8 0.0 316.8 105.6 0.85| 9.2 7.8 4000 250 38 182 24| 3.1 4.9 8.0|422.7 0.0 422.7 105.7 0.87| 8.5 7.4 5000 254 44 199 24| 3.7 3.9 7.6|537.1 0.0 537.1 107.4 0.88| 8.1 7.1 6000 257 49 210 25| 3.1 3.1 6.2|537.1 -6.8 530.3 88.4 0.85| 6.9 5.9 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251209.12.gif