UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122500.upa.cvt Date: 0000Z 25 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:0000Z 25 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 192 SFC 944 651 -2.1 -5.9 75 3.8 -3.4 285 1 275.6 276.0 272.8 282.8 2.60 2 943 660 -2.3 -4.6 84 2.3 -3.1 276 1 275.4 275.9 273.1 283.4 2.88 3 935 728 2.4 -2.6 70 5.0 0.4 203 2 280.9 281.5 276.9 290.4 3.37 4 932 754 2.4 -2.6 70 5.0 0.3 175 2 281.2 281.7 277.0 290.7 3.38 5 925 815 2.8 -4.2 60 7.0 0.0 110 3 282.2 282.7 277.0 290.7 3.02 6 919 868 3.6 -4.4 56 8.0 0.4 122 3 283.5 284.0 277.7 292.1 3.00 7 912 930 3.2 -5.8 52 9.0 -0.3 137 3 283.7 284.2 277.4 291.5 2.71 8 891 1119 4.6 -9.4 35 14.0 -0.6 181 4 287.1 287.4 278.3 293.3 2.10 9 850 1502 2.8 -13.2 30 16.0 -2.6 270 5 289.1 289.4 278.6 294.0 1.62 10 796 2029 -0.5 -14.5 34 14.0 -5.0 262 11 291.0 291.3 279.4 295.8 1.56 11 784 2151 0.0 -15.0 31 15.0 -4.8 260 12 292.8 293.1 280.2 297.5 1.52 12 700 3047 -6.1 -17.1 41 11.0 -9.3 245 23 295.7 296.0 281.4 300.2 1.43 13 534 5099 -22.3 -27.2 64 4.9 -23.2 261 37 300.1 300.3 282.4 302.7 0.77 14 504 5522 -23.7 -30.7 53 7.0 -24.8 265 40 303.5 303.6 283.5 305.4 0.59 15 500 5580 -24.1 -31.1 52 7.0 -25.2 265 40 303.7 303.8 283.6 305.6 0.57 16 442 6466 -31.7 -38.7 50 7.0 -32.4 265 43 305.0 305.0 283.8 306.0 0.30 17 436 6563 -30.7 -37.7 50 7.0 -31.4 265 44 307.4 307.5 284.8 308.6 0.34 18 400 7170 -34.5 -43.5 40 9.0 -35.2 265 46 310.2 310.2 285.7 310.9 0.20 19 383 7473 -36.5 -46.5 35 10.0 -37.2 263 48 311.4 311.4 286.0 312.0 0.15 20 300 9120 -50.5 -61.5 26 11.0 -50.7 255 56 314.2 314.2 286.8 314.3 0.03 21 260 10034 -58.1 -70.1 20 12.0 -58.2 251 59 316.1 316.1 287.5 316.2 0.01 22 250 10280 -59.5 -71.5 20 12.0 -59.6 250 60 317.6 317.6 288.0 317.6 0.01 23 228 10852 -62.3 -74.3 19 12.0 -62.4 250 69 321.8 321.8 289.3 321.8 0.01 24 221 11044 -63.3 -75.3 18 12.0 -63.4 250 66 323.2 323.2 289.7 323.2 0.01 25 200 11660 -61.3 -73.3 19 12.0 -61.4 250 64 335.7 335.7 293.3 335.7 0.01 26 150 13470 -55.5 -67.5 21 12.0 -55.8 245 52 374.5 374.5 301.4 374.6 0.03 27 137 14050 -54.3 -67.3 19 13.0 -54.6 245 50 386.4 386.4 303.3 386.6 0.03 28 100 16040 -60.3 -78.3 8 18.0 -60.6 245 42 411.2 411.2 306.7 411.3 0.01 29 84 17116 -63.3 -88.3 2 25.0 -63.6 252 48 426.2 426.2 308.4 426.2 0.00 30 70 18240 -61.3 -91.3 1 30.0 -61.7 260 54 453.2 453.2 311.1 453.2 0.00 31 60 19204 -57.9 -88.9 1 31.0 -58.5 260 49 481.3 481.3 313.5 481.3 0.00 32 50 20350 -59.5 -89.5 1 30.0 -60.1 260 44 503.3 503.3 315.2 503.3 0.00 33 47 20740 -56.9 -87.9 1 31.0 -57.8 261 46 518.5 518.5 316.2 518.5 0.00 34 36 22412 -61.3 -90.3 1 29.0 -62.0 266 53 548.2 548.2 318.0 548.2 0.00 35 30 23550 -58.7 -88.7 1 30.0 -59.7 270 58 584.6 584.6 319.9 584.6 0.00 36 27 24214 -56.7 -87.7 1 31.0 -58.2 270 59 608.1 608.1 321.0 608.2 0.01 37 24 24955 -59.5 -89.5 1 30.0 -60.7 270 59 620.8 620.8 321.5 620.8 0.01 38 22 25501 -57.7 -88.7 1 31.0 -59.3 270 60 641.8 641.8 322.4 641.9 0.01 39 20 26100 -59.3 -89.3 1 30.0 -60.7 270 60 654.7 654.7 322.9 654.7 0.01 40 19 26420 -60.5 -90.5 1 30.0 -61.8 660.6 660.6 323.1 660.6 0.01 41 19 26420 -58.3 -89.3 1 31.0 -59.9 667.4 667.4 323.3 667.5 0.01 42 18 26759 -60.7 -90.7 1 30.0 -62.0 670.3 670.3 323.4 670.3 0.01 43 16 27499 -56.7 -87.7 1 31.0 -58.9 706.3 706.3 324.6 706.4 0.01 44 12 29320 -57.3 -88.3 1 31.0 -59.9 764.7 764.7 326.3 764.8 0.01 TRP 221 11044 -63.3 -75.3 18 12.0 -63.4 250 66 323.2 323.2 289.7 323.2 0.01 WND 228 10852 -62.3 -74.3 19 12.0 -62.4 250 69 321.8 321.8 289.3 321.8 0.01 Sounding variables and indices 1000-500 mb thick: 5388.00 m Freezing level: Surface below freezing Freezing level: 939.09 mb = 692.97 m = 2273.50 ft Freezing level: 804.18 mb = 1949.34 m = 6395.40 ft Freezing level: 784.00 mb = 2150.62 m = 7055.74 ft Freezing level: 784.00 mb = 2150.62 m = 7055.74 ft Wetbulb zero: Below ground Precipitable water: 0.28 inches Sfc-500 mean rel hum: 46.56 % Est. max temperature: 13.42 C = 56.16 F Sfc-Lift cond lev (LCL): 889.27 mb = 1135.03 m = 3723.81 ft T: 4.53 C 700-500 lapse rate: 7.11 C/km ThetaE index: 0.55 C Layer 912.0- 891.0 mb Conv cond level (CCL): 629.32 mb = 3853.70 m = 12643.23 ft Mean mixing ratio: 2.33 g/kg Conv temperature: 19.59 C = 67.26 F Cap Strength: 10.32 C Lifted Index: 10.45 C Risk: None Lifted Index @300 mb: 15.57 C Lifted Index @700 mb: 8.03 C Showalter Index: 9.16 C Risk: None Total Totals Index: 37.80 C Risk: None Vertical Totals Index: 26.90 C Cross Totals Index: 10.90 C K Index: 2.70 Risk: None Sweat Index: 50.00 Risk: None Energy Index: 2.43 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 42.04 J/kg Max Up Vert Vel: 9.17 m/s Conv Inhibition (B-): 51779.66 J/kg Cap Strength: 9.93 C Lift Cond Lev (LCL): 749.24 mb = 2509.34 m = 8232.64 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 289 at 19 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 ---------------------------------------------------------- 0 944 651 285 1 1.0 -0.3 | 109 18 -17.0 5.9 1 925 815 110 3 -2.8 1.0 | 109 22 -20.8 7.1 2 850 1502 270 5 5.0 -0.0 | 115 14 -13.0 6.1 3 700 3047 245 23 20.8 9.7 | 190 16 2.8 15.8 4 500 5580 265 40 39.8 3.5 | 246 24 21.8 9.6 5 400 7170 265 46 45.8 4.0 | 250 30 27.8 10.1 6 300 9120 255 56 54.1 14.5 | 240 42 36.1 20.6 7 250 10280 250 60 56.4 20.5 | 235 47 38.4 26.6 8 228 10852 250 69 64.8 23.6 | 238 55 46.8 29.7 9 221 11044 250 66 62.0 22.6 | 237 53 44.0 28.7 10 200 11660 250 64 60.1 21.9 | 236 51 42.1 28.0 11 150 13470 245 52 47.1 22.0 | 226 40 29.1 28.1 12 100 16040 245 42 38.1 17.7 | 220 31 20.1 23.9 13 70 18240 260 54 53.2 9.4 | 246 38 35.2 15.5 14 50 20350 260 44 43.3 7.6 | 241 29 25.3 13.8 15 30 23550 270 58 58.0 -0.0 | 261 40 40.0 6.1 16 20 26100 270 60 60.0 -0.0 | 262 42 42.0 6.1 Wind Parameters Mean winds (0-6000m): 258.8 at 25.3 knts Storm direction: 288.8 at 19.0 knts Shear (0-3000m) pos: 1.8 neg: 3.4 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 96.6 deg Storm rel helicity (0-3000m) pos: 98.1 neg: -15.3 tot: 82.8 m^2/s^2 ave: 27.6 10^-3 m/s^2 rel: 0.56 Storm rel vorticity (0-3000m) horiz: 6.8 stream: 3.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.45 Bulk Shear: 92.88 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 ------------------------------------------------------------------------------- 500 149 3 114 21| 0.0 4.3 4.3| 30.6 -9.4 21.2 42.3 0.40| 10.1 4.0 1000 253 4 117 16| 3.7 2.2 5.9| 36.2 -15.3 20.9 20.9 0.22| 9.1 2.0 1500 259 6 120 14| 2.5 2.8 5.2| 51.3 -15.3 36.0 24.0 0.38| 8.1 3.1 2000 254 8 130 13| 1.8 3.7 5.5| 67.5 -15.3 52.2 26.1 0.49| 7.7 3.8 2500 249 11 142 13| 1.5 4.1 5.6| 81.9 -15.3 66.7 26.7 0.52| 7.4 3.8 3000 248 13 152 12| 1.8 3.4 5.2| 98.1 -15.3 82.8 27.6 0.56| 6.8 3.8 4000 251 18 173 12| 2.4 2.6 4.9|134.0 -15.3 118.8 29.7 0.62| 6.1 3.8 5000 256 22 196 12| 2.7 2.0 4.8|174.1 -15.3 158.9 31.8 0.66| 5.7 3.8 6000 259 25 212 13| 2.3 2.0 4.2|181.8 -15.3 166.5 27.8 0.63| 5.1 3.2 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251225.00.gif