UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 8 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 215 SFC 948 648 4.0 3.0 93 1.0 3.5 30 1 281.4 282.3 279.2 295.3 5.01 2 925 847 1.8 1.5 98 0.3 1.7 60 1 281.1 281.9 278.6 293.9 4.61 3 850 1527 -1.7 270 9 284.4 4 802 1987 -5.1 267 14 285.5 5 771 2296 -5.7 -5.7 100 0.0 -5.7 265 18 288.1 288.7 280.2 297.5 3.24 6 700 3047 -10.5 -10.5 100 0.0 -10.5 260 27 290.9 291.3 280.5 298.1 2.45 7 645 3672 -14.1 -16.6 81 2.5 -14.7 265 28 293.7 294.0 280.7 298.6 1.62 8 641 3719 -13.7 -17.2 75 3.5 -14.6 265 28 294.6 294.9 281.1 299.4 1.55 9 557 4768 -22.7 -24.6 84 1.9 -23.1 274 30 296.1 296.2 280.9 299.1 0.93 10 532 5103 -25.3 -34.3 43 9.0 -26.4 276 30 296.9 296.9 280.6 298.2 0.39 11 530 5130 -25.1 -35.1 39 10.0 -26.3 277 30 297.4 297.5 280.7 298.7 0.36 12 500 5550 -28.7 -43.7 22 15.0 -29.9 280 31 298.0 298.1 280.7 298.6 0.16 13 452 6263 -34.5 -46.5 29 12.0 -35.3 289 37 299.5 299.5 281.3 300.0 0.13 14 400 7110 -38.5 -56.5 13 18.0 -39.2 300 44 305.0 305.0 283.4 305.1 0.05 15 336 8296 -43.5 -63.5 9 20.0 -44.0 303 60 313.7 313.7 286.6 313.8 0.02 16 300 9050 -48.9 -69.9 7 21.0 -49.3 305 71 316.4 316.4 287.6 316.5 0.01 17 281 9479 -52.0 -71.9 7 19.9 -52.2 300 77 318.0 318.0 288.1 318.0 0.01 18 265 9857 -54.7 -73.7 8 19.0 -54.9 303 73 319.4 319.4 288.5 319.4 0.01 19 250 10230 -56.5 -74.5 9 18.0 -56.7 305 69 322.1 322.1 289.4 322.1 0.01 20 231 10724 -59.7 -76.7 9 17.0 -59.8 303 67 324.6 324.6 290.2 324.6 0.00 21 220 11028 -58.5 -75.5 9 17.0 -58.6 302 65 331.0 331.0 292.0 331.0 0.01 22 200 11620 -61.3 -77.3 10 16.0 -61.4 300 62 335.7 335.7 293.2 335.7 0.01 23 191 11906 -62.7 -78.7 10 16.0 -62.8 290 64 337.9 337.9 293.8 337.9 0.00 24 156 13166 -60.1 -81.1 5 21.0 -60.3 290 73 362.4 362.5 299.2 362.5 0.00 25 150 13410 -62.1 -86.1 3 24.0 -62.3 290 75 363.1 363.1 299.3 363.1 0.00 26 132 14199 -61.9 -90.9 1 29.0 -62.1 284 69 377.0 377.0 301.8 377.0 0.00 27 117 14949 -58.5 -88.5 1 30.0 -58.8 278 63 396.5 396.5 304.7 396.5 0.00 28 100 15930 -60.5 -90.5 1 30.0 -60.8 270 56 410.8 410.8 306.6 410.8 0.00 29 97 16120 -58.1 -89.1 1 31.0 -58.5 270 57 419.1 419.1 307.6 419.1 0.00 30 74 17820 -58.5 -88.5 1 30.0 -59.0 274 66 452.0 452.0 311.0 452.0 0.00 31 70 18170 -56.7 -87.7 1 31.0 -57.3 275 68 463.1 463.1 312.0 463.1 0.00 32 61 19047 -55.1 -87.1 1 32.0 -55.9 273 69 485.2 485.2 313.8 485.3 0.00 33 50 20300 -61.7 -90.7 1 29.0 -62.1 270 71 498.1 498.1 314.8 498.1 0.00 34 49 20425 -62.3 -91.3 1 29.0 -62.7 270 72 499.5 499.5 314.9 499.6 0.00 35 40 21679 -61.5 -90.5 1 29.0 -62.1 270 77 531.4 531.4 317.0 531.4 0.00 36 35 22494 -67.5 -95.5 1 28.0 -67.8 270 81 536.4 536.4 317.3 536.5 0.00 37 34 22670 -63.5 -92.5 1 29.0 -64.0 270 82 551.4 551.4 318.2 551.4 0.00 38 31 23238 -62.3 -91.3 1 29.0 -63.0 270 84 569.4 569.4 319.1 569.5 0.00 39 30 23440 -63.7 -92.7 1 29.0 -64.3 270 85 571.0 571.0 319.2 571.0 0.00 40 29 23646 -65.1 -93.1 1 28.0 -65.6 270 85 572.7 572.7 319.3 572.7 0.00 41 24 24805 -60.3 -90.3 1 30.0 -61.4 267 85 618.5 618.5 321.4 618.5 0.00 42 20 25940 -58.7 -88.7 1 30.0 -60.2 265 85 656.5 656.5 322.9 656.5 0.01 43 19 26262 -58.5 -88.5 1 30.0 -60.1 666.8 666.8 323.3 666.9 0.01 44 17 26957 -61.3 -91.3 1 30.0 -62.6 679.4 679.4 323.7 679.4 0.01 45 13 28625 -60.5 -90.5 1 30.0 -62.3 736.3 736.3 325.6 736.4 0.01 46 11 29673 -57.3 -88.3 1 31.0 -60.1 784.0 784.0 326.8 784.1 0.01 47 10 30282 -52.9 -84.9 1 32.0 -57.3 822.1 822.1 327.8 822.3 0.03 TRP 191 11906 -62.7 -78.7 10 16.0 -62.8 290 64 337.9 337.9 293.8 337.9 0.00 WND 281 9479 -52.0 -71.9 7 19.9 -52.2 300 77 318.0 318.0 288.1 318.0 0.01 Sounding variables and indices 1000-500 mb thick: 5335.00 m Freezing level: 886.43 mb = 1196.71 m = 3926.18 ft Wetbulb zero: 890.37 mb = 1153.89 m = 3785.69 ft Precipitable water: 0.47 inches Sfc-500 mean rel hum: 78.56 % Est. max temperature: 8.36 C = 47.04 F Sfc-Lift cond lev (LCL): 933.39 mb = 773.97 m = 2539.24 ft T: 2.61 C 700-500 lapse rate: 7.27 C/km ThetaE index: 1.34 C Layer 925.0- 850.0 mb Conv cond level (CCL): 891.60 mb = 1142.74 m = 3749.09 ft Mean mixing ratio: 4.38 g/kg Conv temperature: 5.12 C = 41.21 F Cap Strength: 4.00 C Lifted Index: 4.03 C Risk: None Lifted Index @300 mb: 15.47 C Lifted Index @700 mb: 2.08 C Showalter Index: 3.45 C Risk: None Total Totals Index: 53.86 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.00 C Cross Totals Index: 26.86 C K Index: 25.16 Risk: 40-60 % chance of thunderstorms Sweat Index: 146.14 Risk: None Energy Index: 0.65 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 14.59 J/kg Max Up Vert Vel: 5.40 m/s Conv Inhibition (B-): 58859.91 J/kg Cap Strength: 4.03 C Lift Cond Lev (LCL): 892.60 mb = 1133.76 m = 3719.63 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 304 at 18 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 ---------------------------------------------------------- 0 948 648 30 1 -0.5 -0.9 | 121 18 -15.5 9.3 1 925 847 60 1 -0.9 -0.5 | 121 19 -15.8 9.7 2 850 1527 270 9 9.0 -0.0 | 150 12 -6.0 10.2 3 700 3047 260 27 26.6 4.7 | 218 19 11.6 14.9 4 500 5550 280 31 30.5 -5.4 | 253 16 15.6 4.8 5 400 7110 300 44 38.1 -22.0 | 297 26 23.1 -11.8 6 300 9050 305 71 58.2 -40.7 | 305 53 43.2 -30.6 7 281 9479 300 77 66.7 -38.5 | 299 59 51.7 -28.3 8 250 10230 305 69 56.5 -39.6 | 305 51 41.5 -29.4 9 200 11620 300 62 53.7 -31.0 | 298 44 38.7 -20.8 10 191 11906 290 64 60.1 -21.9 | 285 47 45.2 -11.7 11 150 13410 290 75 70.5 -25.7 | 286 58 55.5 -15.5 12 100 15930 270 56 56.0 -0.0 | 256 42 41.0 10.2 13 70 18170 275 68 67.7 -5.9 | 265 53 52.8 4.2 14 50 20300 270 71 71.0 -0.0 | 260 57 56.0 10.2 15 30 23440 270 85 85.0 -0.0 | 262 71 70.0 10.2 16 20 25940 265 85 84.7 7.4 | 256 72 69.7 17.6 Wind Parameters Mean winds (0-6000m): 274.2 at 24.1 knts Storm direction: 304.2 at 18.1 knts Shear (0-3000m) pos: 0.4 neg: 4.8 tot: 5.1 10-3/s Storm rel Dir Shear (0-3000m): 104.4 deg Storm rel helicity (0-3000m) pos: 84.6 neg: -14.6 tot: 70.0 m^2/s^2 ave: 23.3 10^-3 m/s^2 rel: 0.59 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.18 Bulk Shear: 79.40 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 12 2 118 17| 0.0 3.9 3.9| 0.5 -14.6 -14.1 -28.2 -0.56| 5.5 -3.1 1000 275 5 134 14| 0.0 5.7 5.7| 27.4 -14.6 12.8 12.8 0.34| 9.0 3.1 1500 270 8 144 13| 0.0 5.8 5.8| 44.5 -14.6 29.9 19.9 0.51| 8.0 4.1 2000 266 11 158 12| 0.0 5.9 5.9| 61.1 -14.6 46.5 23.2 0.57| 7.6 4.3 2500 263 14 173 12| 0.0 5.7 5.7| 75.0 -14.6 60.4 24.2 0.57| 7.1 4.1 3000 263 16 183 12| 0.4 4.8 5.1| 84.6 -14.6 70.0 23.3 0.59| 6.3 3.7 4000 265 19 199 12| 0.8 3.6 4.4|103.9 -14.6 89.3 22.3 0.63| 5.3 3.3 5000 269 22 212 12| 1.2 2.9 4.0|125.8 -14.6 111.2 22.2 0.67| 4.8 3.2 6000 274 24 227 12| 2.0 2.4 4.4|177.2 -14.6 162.6 27.1 0.71| 5.0 3.5 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251208.12.gif