UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121912.upa.cvt Date: 1200Z 19 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 19 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 258 SFC 952 648 -1.1 -2.1 93 1.0 -1.5 25 3 275.9 276.5 274.2 285.3 3.44 2 951 656 -0.7 -0.9 99 0.2 -0.8 24 3 276.4 277.0 274.9 286.7 3.76 3 925 875 -2.7 -2.7 100 0.0 -2.7 355 1 276.5 277.1 274.5 285.9 3.38 4 906 1039 -3.9 -3.9 100 0.0 -3.9 330 1 277.0 277.5 274.4 285.7 3.16 5 882 1253 -1.1 -1.5 97 0.4 -1.3 299 2 282.0 282.7 278.1 292.9 3.88 6 879 1280 -1.1 -1.8 95 0.7 -1.4 295 2 282.3 282.9 278.2 293.0 3.81 7 869 1371 -0.3 -1.9 89 1.6 -1.0 281 2 284.0 284.7 279.0 294.9 3.82 8 850 1548 -1.7 -3.1 90 1.4 -2.3 255 3 284.4 285.0 278.9 294.5 3.58 9 761 2419 -7.3 -7.3 100 0.0 -7.3 246 16 287.4 288.0 279.5 295.9 2.90 10 750 2533 -5.3 -5.3 100 0.0 -5.3 245 17 290.8 291.4 281.7 300.9 3.43 11 700 3071 -8.3 -10.3 85 2.0 -9.0 240 25 293.3 293.7 281.7 300.8 2.49 12 649 3653 -12.3 -16.1 73 3.8 -13.4 242 29 295.2 295.5 281.5 300.3 1.68 13 633 3843 -12.3 -17.3 66 5.0 -13.7 243 30 297.3 297.6 282.3 302.1 1.55 14 500 5600 -24.7 -34.7 39 10.0 -26.0 250 42 302.9 303.0 283.1 304.3 0.40 15 428 6709 -33.9 -42.9 40 9.0 -34.6 257 55 305.0 305.0 283.7 305.7 0.20 16 400 7180 -36.3 -46.3 35 10.0 -37.0 260 60 307.8 307.8 284.7 308.4 0.15 17 335 8399 -41.5 -52.5 29 11.0 -42.0 266 98 316.7 316.7 287.8 317.1 0.09 18 300 9140 -47.1 -58.1 27 11.0 -47.4 270 122 319.0 319.0 288.5 319.2 0.05 19 268 9876 -53.2 -65.0 23 11.7 -53.4 270 128 320.5 320.5 288.9 320.6 0.02 20 257 10145 -55.5 -67.5 21 12.0 -55.6 267 123 321.0 321.0 289.0 321.1 0.02 21 250 10320 -56.9 -68.9 21 12.0 -57.1 265 120 321.5 321.5 289.2 321.5 0.01 22 205 11558 -63.5 -76.5 16 13.0 -63.6 270 103 329.9 329.9 291.7 329.9 0.01 23 200 11710 -62.3 -74.3 19 12.0 -62.4 265 89 334.1 334.1 292.8 334.1 0.01 24 191 11996 -59.3 -71.3 20 12.0 -59.5 266 86 343.3 343.4 295.1 343.4 0.01 25 150 13500 -61.9 -74.9 16 13.0 -62.0 270 68 363.4 363.4 299.4 363.5 0.01 26 100 16020 -61.5 -83.5 4 22.0 -61.7 275 54 408.9 408.9 306.4 408.9 0.00 27 70 18200 -63.7 -92.7 1 29.0 -64.0 265 46 448.1 448.1 310.7 448.1 0.00 28 55 19682 -65.9 -93.9 1 28.0 -66.1 272 53 475.1 475.1 313.1 475.1 0.00 29 50 20270 -61.5 -90.5 1 29.0 -62.0 275 56 498.6 498.6 314.8 498.6 0.00 30 46 20791 -57.5 -88.5 1 31.0 -58.3 272 54 520.2 520.2 316.3 520.3 0.00 31 32 23058 -61.5 -90.5 1 29.0 -62.2 258 46 566.4 566.4 319.0 566.4 0.00 32 30 23460 -58.5 -88.5 1 30.0 -59.6 255 44 585.2 585.2 319.9 585.2 0.01 33 29 23674 -57.9 -88.9 1 31.0 -59.1 255 45 592.5 592.5 320.3 592.5 0.00 34 25 24606 -60.5 -90.5 1 30.0 -61.5 253 48 610.7 610.7 321.1 610.8 0.00 35 22 25417 -53.3 -85.3 1 32.0 -55.7 251 50 654.9 654.9 322.9 655.0 0.01 36 20 26030 -54.7 -86.7 1 32.0 -57.0 250 52 668.7 668.7 323.4 668.8 0.01 37 18 26709 -51.3 -84.3 1 33.0 -54.6 699.9 699.9 324.4 700.1 0.02 38 15 27891 -52.3 -84.3 1 32.0 -55.8 734.1 734.1 325.5 734.2 0.02 39 13 28825 -48.7 -82.7 1 34.0 -53.8 777.2 777.2 326.7 777.5 0.03 40 12 29347 -51.9 -84.9 1 33.0 -56.1 783.9 783.9 326.8 784.1 0.02 41 11 29916 -48.1 -82.1 1 34.0 -54.0 817.4 817.4 327.7 817.8 0.04 TRP 205 11558 -63.5 -76.5 16 13.0 -63.6 270 103 329.9 329.9 291.7 329.9 0.01 WND 268 9876 -53.2 -65.0 23 11.7 -53.4 270 128 320.5 320.5 288.9 320.6 0.02 Sounding variables and indices 1000-500 mb thick: 5342.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.45 inches Sfc-500 mean rel hum: 76.80 % Est. max temperature: 8.85 C = 47.93 F Sfc-Lift cond lev (LCL): 937.06 mb = 772.58 m = 2534.68 ft T: -1.77 C 700-500 lapse rate: 6.48 C/km ThetaE index: 1.00 C Layer 925.0- 882.0 mb Conv cond level (CCL): 935.66 mb = 784.40 m = 2573.45 ft Mean mixing ratio: 3.56 g/kg Conv temperature: -0.53 C = 31.05 F Cap Strength: 9.71 C Lifted Index: 11.96 C Risk: None Lifted Index @300 mb: 21.00 C Lifted Index @700 mb: 7.71 C Showalter Index: 8.15 C Risk: None Total Totals Index: 44.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.00 C Cross Totals Index: 21.60 C K Index: 17.90 Risk: < 20 % chance of thunderstorms Sweat Index: 48.00 Risk: None Energy Index: 2.03 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 45.05 J/kg Max Up Vert Vel: 9.49 m/s Conv Inhibition (B-): 60436.21 J/kg Cap Strength: 11.89 C Lift Cond Lev (LCL): 893.78 mb = 1147.29 m = 3764.02 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 278 at 20 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 ---------------------------------------------------------- 0 952 648 25 3 -1.3 -2.7 | 91 21 -21.1 0.2 1 925 875 355 1 0.1 -1.0 | 96 20 -19.8 1.9 2 850 1548 255 3 2.9 0.8 | 102 17 -17.0 3.7 3 700 3071 240 25 21.7 12.5 | 187 16 1.8 15.4 4 500 5600 250 42 39.5 14.4 | 229 26 19.6 17.3 5 400 7180 260 60 59.1 10.4 | 251 41 39.2 13.3 6 300 9140 270 122 122.0 -0.0 | 268 102 102.1 2.9 7 268 9876 270 128 128.0 -0.0 | 268 108 108.1 2.9 8 250 10320 265 120 119.5 10.5 | 262 101 99.7 13.4 9 205 11558 270 103 103.0 -0.0 | 268 83 83.1 2.9 10 200 11710 265 89 88.7 7.8 | 261 70 68.8 10.7 11 150 13500 270 68 68.0 -0.0 | 267 48 48.1 2.9 12 100 16020 275 54 53.8 -4.7 | 273 34 33.9 -1.8 13 70 18200 265 46 45.8 4.0 | 255 27 26.0 6.9 14 50 20270 275 56 55.8 -4.9 | 273 36 35.9 -2.0 15 30 23460 255 44 42.5 11.4 | 238 27 22.6 14.3 16 20 26030 250 52 48.9 17.8 | 234 36 29.0 20.7 Wind Parameters Mean winds (0-6000m): 248.4 at 26.8 knts Storm direction: 278.4 at 20.1 knts Shear (0-3000m) pos: 0.6 neg: 4.8 tot: 5.4 10-3/s Storm rel Dir Shear (0-3000m): 108.7 deg Storm rel helicity (0-3000m) pos: 94.9 neg: -0.5 tot: 94.4 m^2/s^2 ave: 31.5 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 5.6 stream: 4.4 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.46 Bulk Shear: 98.77 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 ------------------------------------------------------------------------------- 500 356 2 94 20| 0.0 3.0 3.0| 9.1 -0.5 8.6 17.3 0.49| 3.4 1.7 1000 289 2 97 18| 0.0 3.5 3.5| 22.9 -0.5 22.4 22.4 0.61| 3.9 2.4 1500 259 4 103 16| 0.0 4.8 4.8| 41.9 -0.5 41.4 27.6 0.68| 5.1 3.4 2000 249 7 112 14| 0.0 5.5 5.5| 62.6 -0.5 62.1 31.0 0.78| 5.7 4.4 2500 244 10 124 13| 0.0 5.8 5.8| 81.3 -0.5 80.8 32.3 0.78| 6.0 4.6 3000 243 13 136 12| 0.6 4.8 5.4| 94.9 -0.5 94.4 31.5 0.79| 5.6 4.4 4000 244 18 159 11| 1.4 3.6 5.0|124.1 -0.5 123.7 30.9 0.79| 5.1 4.0 5000 246 22 182 12| 1.8 2.9 4.7|158.6 -0.5 158.1 31.6 0.78| 4.8 3.8 6000 248 27 201 14| 2.6 2.4 5.0|226.7 -0.5 226.2 37.7 0.76| 5.1 3.9 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251219.12.gif