UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120500.upa.cvt Date: 0000Z 5 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:0000Z 5 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 224 SFC 949 651 4.0 0.9 80 3.1 2.6 195 1 281.3 282.1 278.3 293.3 4.30 2 944 694 6.0 2.8 80 3.2 4.5 204 3 283.8 284.6 280.3 297.7 4.96 3 925 861 5.4 2.2 80 3.2 3.9 240 9 284.8 285.7 280.7 298.5 4.85 4 865 1407 3.2 -2.8 65 6.0 0.6 244 14 288.1 288.7 280.6 298.4 3.59 5 850 1549 2.0 -2.7 71 4.7 -0.0 245 15 288.2 288.9 280.8 298.9 3.68 6 786 2175 -2.9 -2.9 100 0.0 -2.9 243 17 289.5 290.2 281.7 300.9 3.93 7 700 3085 -8.1 -8.1 100 0.0 -8.1 240 21 293.5 294.0 282.3 302.3 2.96 8 629 3909 -13.5 -13.5 100 0.0 -13.5 242 26 296.5 296.9 282.6 303.0 2.14 9 573 4611 -20.5 -21.0 96 0.5 -20.6 243 30 296.3 296.5 281.4 300.2 1.25 10 500 5610 -26.7 -29.9 74 3.2 -27.2 245 36 300.5 300.6 282.4 302.6 0.64 11 415 6926 -36.1 -42.1 54 6.0 -36.5 245 46 304.8 304.9 283.7 305.6 0.23 12 400 7180 -37.9 -44.9 48 7.0 -38.4 245 48 305.7 305.8 284.0 306.4 0.17 13 300 9100 -52.7 -58.7 48 6.0 -52.8 235 75 311.1 311.1 285.8 311.2 0.05 14 262 9959 -59.9 -66.8 40 6.9 -60.0 240 77 312.8 312.8 286.4 312.9 0.02 15 258 10054 -60.7 -67.7 39 7.0 -60.7 240 75 313.0 313.0 286.4 313.1 0.02 16 250 10250 -60.5 -67.5 39 7.0 -60.6 250 64 316.1 316.1 287.5 316.2 0.02 17 217 11137 -57.1 -63.1 46 6.0 -57.2 247 44 334.4 334.5 293.0 334.6 0.04 18 200 11650 -58.5 -65.5 40 7.0 -58.6 245 33 340.1 340.1 294.4 340.2 0.03 19 190 11971 -60.3 -67.3 39 7.0 -60.4 248 33 342.3 342.3 294.9 342.4 0.02 20 150 13450 -58.1 -65.1 40 7.0 -58.3 260 33 370.0 370.0 300.6 370.2 0.04 21 143 13751 -57.3 -64.3 41 7.0 -57.5 261 34 376.5 376.5 301.7 376.7 0.05 22 100 15980 -62.7 -71.7 29 9.0 -62.9 270 42 406.6 406.6 306.1 406.7 0.02 23 78 17506 -64.9 -76.9 18 12.0 -65.1 270 46 432.0 432.0 309.0 432.0 0.01 24 70 18170 -63.3 -76.3 16 13.0 -63.6 270 48 449.0 449.0 310.8 449.1 0.02 25 68 18348 -62.9 -76.9 13 14.0 -63.1 269 47 453.6 453.6 311.2 453.7 0.02 26 50 20220 -66.5 -89.5 3 23.0 -66.8 260 36 486.8 486.8 314.0 486.8 0.00 27 39 21713 -69.5 -96.5 1 27.0 -69.7 272 44 515.0 515.0 316.0 515.0 0.00 28 30 23290 -66.5 -94.5 1 28.0 -66.9 285 52 563.4 563.4 318.8 563.4 0.00 29 20 25720 -70.9 -96.9 1 26.0 -71.2 270 54 619.1 619.1 321.5 619.2 0.00 30 19 26023 -71.5 -97.5 1 26.0 -71.8 626.4 626.4 321.7 626.4 0.00 TRP 258 10054 -60.7 -67.7 39 7.0 -60.7 240 75 313.0 313.0 286.4 313.1 0.02 WND 262 9959 -59.9 -66.8 40 6.9 -60.0 240 77 312.8 312.8 286.4 312.9 0.02 Sounding variables and indices 1000-500 mb thick: 5386.00 m Freezing level: 823.88 mb = 1804.61 m = 5920.57 ft Wetbulb zero: 850.90 mb = 1540.40 m = 5053.74 ft Precipitable water: 0.55 inches Sfc-500 mean rel hum: 90.15 % Est. max temperature: 11.81 C = 53.26 F Sfc-Lift cond lev (LCL): 904.60 mb = 1042.68 m = 3420.82 ft T: 4.67 C 700-500 lapse rate: 7.37 C/km ThetaE index: 0.04 C Layer 865.0- 850.0 mb Conv cond level (CCL): 803.75 mb = 1996.59 m = 6550.43 ft Mean mixing ratio: 4.27 g/kg Conv temperature: 11.72 C = 53.09 F Cap Strength: 2.92 C Lifted Index: 3.46 C Risk: None Lifted Index @300 mb: 9.16 C Lifted Index @700 mb: 2.31 C Showalter Index: 3.05 C Risk: None Total Totals Index: 52.70 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.70 C Cross Totals Index: 24.00 C K Index: 26.00 Risk: 40-60 % chance of thunderstorms Sweat Index: 140.00 Risk: None Energy Index: 0.76 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.02 J/kg Max Up Vert Vel: 5.66 m/s Conv Inhibition (B-): 43849.14 J/kg Cap Strength: 3.47 C Lift Cond Lev (LCL): 840.16 mb = 1642.17 m = 5387.62 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 273 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 ---------------------------------------------------------- 0 949 651 195 1 0.3 1.0 | 96 19 -18.8 2.1 1 925 861 240 9 7.8 4.5 | 117 13 -11.2 5.6 2 850 1549 245 15 13.6 6.3 | 144 9 -5.4 7.5 3 700 3085 240 21 18.2 10.5 | 176 12 -0.9 11.6 4 500 5610 245 36 32.6 15.2 | 220 21 13.6 16.4 5 400 7180 245 48 43.5 20.3 | 229 33 24.5 21.4 6 300 9100 235 75 61.4 43.0 | 224 61 42.4 44.2 7 262 9959 240 77 66.7 38.5 | 230 62 47.6 39.6 8 258 10054 240 75 65.0 37.5 | 230 60 45.9 38.6 9 250 10250 250 64 60.1 21.9 | 241 47 41.1 23.0 10 200 11650 245 33 29.9 13.9 | 216 19 10.9 15.1 11 150 13450 260 33 32.5 5.7 | 243 15 13.5 6.9 12 100 15980 270 42 42.0 -0.0 | 267 23 23.0 1.1 13 70 18170 270 48 48.0 -0.0 | 268 29 29.0 1.1 14 50 20220 260 36 35.5 6.3 | 246 18 16.4 7.4 15 30 23290 285 52 50.2 -13.5 | 292 34 31.2 -12.3 16 20 25720 270 54 54.0 -0.0 | 268 35 35.0 1.1 Wind Parameters Mean winds (0-6000m): 243.4 at 25.4 knts Storm direction: 273.4 at 19.1 knts Shear (0-3000m) pos: 3.0 neg: 1.1 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): 93.7 deg Storm rel helicity (0-3000m) pos: 64.6 neg: 0.0 tot: 64.6 m^2/s^2 ave: 21.5 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 3.4 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.40 Bulk Shear: 40.17 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 ------------------------------------------------------------------------------- 500 240 8 113 13| 11.2 0.0 11.2| 31.6 0.0 31.6 63.3 0.69| 11.8 8.1 1000 243 11 123 11| 7.6 0.0 7.6| 40.8 0.0 40.8 40.8 0.74| 7.9 5.8 1500 243 13 132 10| 5.1 0.7 5.8| 45.7 0.0 45.7 30.5 0.76| 6.0 4.6 2000 243 14 140 10| 3.8 1.0 4.8| 50.5 0.0 50.5 25.3 0.78| 5.0 3.9 2500 242 15 147 10| 3.0 1.3 4.3| 55.8 0.0 55.8 22.3 0.78| 4.4 3.5 3000 242 17 154 10| 3.0 1.1 4.1| 64.6 0.0 64.6 21.5 0.80| 4.2 3.4 4000 242 19 169 10| 3.1 0.8 3.8| 83.0 0.0 83.0 20.7 0.79| 3.9 3.1 5000 243 22 184 11| 3.1 0.6 3.7|102.7 0.0 102.7 20.5 0.77| 3.8 2.9 6000 243 25 197 13| 2.6 1.2 3.7|121.1 0.0 121.1 20.2 0.70| 3.8 2.7 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251205.00.gif