UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121712.upa.cvt Date: 1200Z 17 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 17 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 234 SFC 949 646 -2.1 -9.1 59 7.0 -4.4 10 1 275.1 275.5 271.6 280.8 2.02 2 948 654 -1.7 -9.7 54 8.0 -4.3 3 1 275.6 276.0 271.8 281.1 1.93 3 925 847 -3.1 -9.1 63 6.0 -5.0 200 1 276.1 276.5 272.3 282.0 2.07 4 905 1020 -3.1 -8.1 68 5.0 -4.8 236 3 277.9 278.3 273.6 284.3 2.29 5 884 1207 -0.7 -7.7 59 7.0 -3.2 275 4 282.2 282.6 276.2 289.2 2.42 6 850 1520 -1.7 -6.7 69 5.0 -3.6 340 7 284.4 284.8 277.7 292.2 2.72 7 750 2510 -4.5 -6.6 85 2.1 -5.3 282 19 291.7 292.2 281.7 300.9 3.11 8 700 3050 -7.5 -9.2 88 1.7 -8.1 250 25 294.2 294.7 282.3 302.3 2.72 9 603 4195 -14.9 -16.5 88 1.6 -15.3 248 38 298.4 298.8 283.0 303.9 1.74 10 568 4647 -15.3 -16.9 88 1.6 -15.7 247 43 303.1 303.5 284.9 308.8 1.79 11 508 5483 -20.1 -21.9 86 1.8 -20.5 245 53 307.1 307.4 285.8 311.4 1.30 12 500 5600 -20.9 -22.7 85 1.8 -21.3 245 54 307.6 307.8 285.9 311.6 1.23 13 400 7210 -32.5 -35.1 78 2.6 -32.8 260 75 312.7 312.8 286.9 314.4 0.48 14 300 9170 -48.3 -52.4 62 4.1 -48.4 255 89 317.3 317.3 288.0 317.7 0.10 15 263 10027 -55.9 -60.9 53 5.0 -56.0 262 95 318.3 318.3 288.2 318.5 0.04 16 250 10350 -57.7 -62.7 53 5.0 -57.8 265 97 320.3 320.3 288.9 320.4 0.03 17 230 10871 -61.7 -67.7 45 6.0 -61.7 261 108 321.9 321.9 289.3 322.0 0.02 18 206 11549 -64.3 -70.3 44 6.0 -64.4 255 122 328.1 328.1 291.2 328.2 0.01 19 203 11639 -63.7 -69.2 47 5.5 -63.7 255 128 330.5 330.5 291.9 330.5 0.02 20 200 11730 -63.1 -68.1 51 5.0 -63.1 255 124 332.8 332.8 292.5 332.9 0.02 21 150 13500 -61.9 -66.9 51 5.0 -62.0 275 73 363.4 363.4 299.4 363.6 0.03 22 132 14291 -60.5 -66.5 45 6.0 -60.6 272 72 379.5 379.5 302.2 379.7 0.04 23 100 16000 -64.1 -71.1 38 7.0 -64.2 265 69 403.9 403.9 305.7 404.0 0.03 24 84 17068 -64.9 -71.9 37 7.0 -65.0 275 58 422.9 422.9 308.0 423.0 0.03 25 83 17142 -60.5 -76.5 10 16.0 -60.8 275 57 433.3 433.3 309.2 433.4 0.01 26 75 17771 -63.5 -79.5 10 16.0 -63.7 281 50 439.8 439.8 309.8 439.8 0.01 27 70 18200 -58.9 -74.9 11 16.0 -59.3 285 46 458.4 458.4 311.6 458.5 0.02 28 50 20300 -61.3 -80.3 6 19.0 -61.8 280 42 499.0 499.0 314.9 499.1 0.01 29 48 20553 -61.5 -80.5 6 19.0 -62.0 280 42 504.4 504.4 315.2 504.5 0.01 30 40 21685 -60.9 -79.9 6 19.0 -61.5 278 42 532.9 532.9 317.1 533.0 0.02 31 37 22174 -57.1 -77.1 6 20.0 -58.1 277 42 554.7 554.7 318.3 554.9 0.03 32 30 23500 -57.7 -79.7 4 22.0 -58.9 275 42 587.3 587.3 320.0 587.5 0.02 33 26 24395 -60.7 -84.7 3 24.0 -61.6 275 50 603.4 603.4 320.7 603.4 0.01 34 20 26050 -54.1 -83.1 2 29.0 -56.5 275 64 670.6 670.6 323.4 670.7 0.02 35 17 27101 -50.7 -83.7 1 33.0 -54.4 713.4 713.4 324.8 713.6 0.02 36 13 28856 -48.9 -82.9 1 34.0 -53.9 776.5 776.5 326.7 776.8 0.03 TRP 206 11549 -64.3 -70.3 44 6.0 -64.4 255 122 328.1 328.1 291.2 328.2 0.01 WND 203 11639 -63.7 -69.2 47 5.5 -63.7 255 128 330.5 330.5 291.9 330.5 0.02 Sounding variables and indices 1000-500 mb thick: 5366.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.47 inches Sfc-500 mean rel hum: 80.90 % Est. max temperature: 10.54 C = 50.97 F Sfc-Lift cond lev (LCL): 849.95 mb = 1520.49 m = 4988.44 ft T: -1.70 C 700-500 lapse rate: 5.25 C/km ThetaE index: 0.00 C Layer 949.0- -0.0 mb Conv cond level (CCL): 633.31 mb = 3818.41 m = 12527.43 ft Mean mixing ratio: 2.32 g/kg Conv temperature: 19.50 C = 67.09 F Cap Strength: 17.97 C Lifted Index: 18.16 C Risk: None Lifted Index @300 mb: 21.99 C Lifted Index @700 mb: 10.64 C Showalter Index: 13.71 C Risk: None Total Totals Index: 33.40 C Risk: None Vertical Totals Index: 19.20 C Cross Totals Index: 14.20 C K Index: 10.80 Risk: None Sweat Index: 68.00 Risk: None Energy Index: 4.02 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 43.70 J/kg Max Up Vert Vel: 9.35 m/s Conv Inhibition (B-): 59262.01 J/kg Cap Strength: 18.02 C Lift Cond Lev (LCL): 815.60 mb = 1846.79 m = 6058.94 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 281 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 ---------------------------------------------------------- 0 949 646 10 1 -0.2 -1.0 | 98 24 -24.0 3.4 1 925 847 200 1 0.3 0.9 | 103 24 -23.5 5.4 2 850 1520 340 7 2.4 -6.6 | 84 22 -21.5 -2.2 3 700 3050 250 25 23.5 8.6 | 178 13 -0.4 13.0 4 500 5600 245 54 48.9 22.8 | 223 37 25.1 27.2 5 400 7210 260 75 73.9 13.0 | 251 53 50.0 17.4 6 300 9170 255 89 86.0 23.0 | 246 68 62.1 27.5 7 250 10350 265 97 96.6 8.5 | 260 74 72.8 12.9 8 206 11549 255 122 117.8 31.6 | 249 101 94.0 36.0 9 203 11639 255 128 123.6 33.1 | 249 107 99.8 37.6 10 200 11730 255 124 119.8 32.1 | 249 103 95.9 36.5 11 150 13500 275 73 72.7 -6.4 | 272 49 48.9 -1.9 12 100 16000 265 69 68.7 6.0 | 257 46 44.9 10.4 13 70 18200 285 46 44.4 -11.9 | 290 22 20.6 -7.5 14 50 20300 280 42 41.4 -7.3 | 279 18 17.5 -2.9 15 30 23500 275 42 41.8 -3.7 | 268 18 18.0 0.8 16 20 26050 275 64 63.8 -5.6 | 272 40 39.9 -1.2 Wind Parameters Mean winds (0-6000m): 250.5 at 32.3 knts Storm direction: 280.5 at 24.3 knts Shear (0-3000m) pos: 1.4 neg: 6.2 tot: 7.5 10-3/s Storm rel Dir Shear (0-3000m): 101.8 deg Storm rel helicity (0-3000m) pos: 58.8 neg: -55.4 tot: 3.4 m^2/s^2 ave: 1.1 10^-3 m/s^2 rel: 0.18 Storm rel vorticity (0-3000m) horiz: 8.9 stream: 1.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.35 Bulk Shear: 123.53 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 ------------------------------------------------------------------------------- 500 251 2 103 23| 0.0 4.2 4.2| 17.8 -2.9 14.9 29.8 0.37| 6.5 2.4 1000 334 4 93 22| 4.1 2.1 6.2| 17.8 -44.8 -27.0 -27.0 -0.35| 8.1 -2.9 1500 320 6 89 20| 2.8 4.1 6.9| 17.8 -55.4 -37.6 -25.1 -0.33| 8.2 -2.7 2000 295 9 92 16| 2.1 5.5 7.6| 27.6 -55.4 -27.8 -13.9 -0.05| 8.9 -0.5 2500 269 12 111 13| 1.7 6.2 7.9| 41.0 -55.4 -14.4 -5.8 0.10| 9.5 1.0 3000 262 15 125 11| 1.4 6.2 7.5| 58.8 -55.4 3.4 1.1 0.18| 8.9 1.6 4000 254 20 157 11| 1.0 6.1 7.1| 92.3 -55.4 36.9 9.2 0.24| 8.2 1.9 5000 250 26 184 13| 0.8 6.1 6.9|125.6 -55.4 70.2 14.0 0.25| 7.7 2.0 6000 251 32 204 17| 1.8 5.0 6.8|274.2 -55.4 218.8 36.5 0.35| 7.8 2.8 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251217.12.gif