UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120712.upa.cvt Date: 1200Z 7 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 7 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 202 SFC 947 646 7.0 -2.0 53 9.0 3.1 135 1 284.5 285.2 278.9 294.5 3.48 2 935 751 8.8 -1.2 49 10.0 4.2 151 6 287.4 288.1 280.6 298.2 3.74 3 925 839 8.4 -1.6 49 10.0 3.9 165 11 287.9 288.5 280.7 298.5 3.67 4 857 1464 3.2 -7.8 44 11.0 -1.0 255 7 288.8 289.3 279.6 296.1 2.48 5 850 1530 2.6 -7.4 48 10.0 -1.3 265 7 288.9 289.3 279.7 296.4 2.58 6 770 2321 -3.9 -3.9 100 0.0 -3.9 252 24 290.1 290.8 281.7 301.0 3.72 7 700 3067 -8.7 -8.7 100 0.0 -8.7 240 40 292.9 293.4 281.8 301.3 2.83 8 642 3732 -13.9 -14.0 99 0.1 -13.9 244 44 294.3 294.6 281.5 300.4 2.02 9 623 3960 -14.3 -16.1 86 1.8 -14.8 245 45 296.4 296.7 282.1 301.8 1.75 10 500 5590 -27.1 -28.8 85 1.7 -27.3 255 54 300.0 300.1 282.3 302.3 0.71 11 476 5940 -30.1 -31.9 84 1.8 -30.3 256 52 300.5 300.6 282.3 302.4 0.55 12 470 6030 -29.1 -31.7 78 2.6 -29.5 256 51 302.9 303.0 283.3 304.8 0.57 13 400 7160 -36.5 -44.5 43 8.0 -37.1 260 44 307.6 307.6 284.7 308.2 0.18 14 398 7195 -36.9 -44.9 43 8.0 -37.4 260 44 307.5 307.5 284.6 308.1 0.18 15 300 9100 -49.9 -59.9 30 10.0 -50.1 270 46 315.0 315.0 287.1 315.2 0.04 16 267 9853 -55.7 -66.7 24 11.0 -55.8 273 45 317.2 317.2 287.9 317.3 0.02 17 250 10270 -57.5 -68.5 23 11.0 -57.6 275 44 320.6 320.6 288.9 320.6 0.02 18 200 11660 -64.7 -76.7 18 12.0 -64.8 275 48 330.3 330.3 291.8 330.3 0.01 19 191 11938 -65.9 -77.9 17 12.0 -66.0 280 40 332.8 332.8 292.4 332.8 0.00 20 158 13105 -57.9 -68.9 23 11.0 -58.1 276 42 364.9 364.9 299.7 365.0 0.02 21 150 13430 -58.9 -69.9 23 11.0 -59.1 275 42 368.6 368.6 300.3 368.7 0.02 22 125 14576 -59.9 -72.9 17 13.0 -60.1 275 42 386.5 386.5 303.3 386.6 0.02 23 117 14993 -57.1 -71.1 15 14.0 -57.4 275 42 399.1 399.1 305.1 399.2 0.02 24 101 15918 -60.9 -77.9 9 17.0 -61.2 275 42 408.9 408.9 306.4 408.9 0.01 25 100 15980 -60.7 -77.7 9 17.0 -61.0 275 42 410.4 410.4 306.6 410.5 0.01 26 70 18190 -60.3 -90.3 1 30.0 -60.7 280 50 455.4 455.4 311.4 455.4 0.00 27 62 18949 -59.7 -89.7 1 30.0 -60.2 276 52 472.8 472.8 312.9 472.8 0.00 28 50 20280 -65.1 -93.1 1 28.0 -65.4 270 56 490.1 490.1 314.2 490.1 0.00 29 48 20529 -66.5 -94.5 1 28.0 -66.8 271 56 492.5 492.5 314.4 492.5 0.00 30 30 23390 -65.3 -93.3 1 28.0 -65.8 285 62 566.6 566.6 319.0 566.6 0.00 31 24 24751 -64.5 -92.5 1 28.0 -65.1 606.3 606.3 320.9 606.3 0.00 TRP 191 11938 -65.9 -77.9 17 12.0 -66.0 280 40 332.8 332.8 292.4 332.8 0.00 WND Sounding variables and indices 1000-500 mb thick: 5388.00 m Freezing level: 818.00 mb = 1846.24 m = 6057.14 ft Wetbulb zero: 871.30 mb = 1328.26 m = 4357.74 ft Precipitable water: 0.47 inches Sfc-500 mean rel hum: 81.77 % Est. max temperature: 12.09 C = 53.77 F Sfc-Lift cond lev (LCL): 824.58 mb = 1772.81 m = 5816.25 ft T: 0.60 C 700-500 lapse rate: 7.29 C/km ThetaE index: 2.37 C Layer 857.0- 850.0 mb Conv cond level (CCL): 725.29 mb = 2789.03 m = 9150.24 ft Mean mixing ratio: 3.14 g/kg Conv temperature: 14.19 C = 57.55 F Cap Strength: 3.38 C Lifted Index: 3.85 C Risk: None Lifted Index @300 mb: 12.72 C Lifted Index @700 mb: 2.35 C Showalter Index: 4.40 C Risk: None Total Totals Index: 49.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.70 C Cross Totals Index: 19.70 C K Index: 22.30 Risk: 20-40 % chance of thunderstorms Sweat Index: 76.00 Risk: None Energy Index: 1.23 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.72 J/kg Max Up Vert Vel: 4.18 m/s Conv Inhibition (B-): 40178.22 J/kg Cap Strength: 3.82 C Lift Cond Lev (LCL): 766.12 mb = 2360.21 m = 7743.37 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 279 at 27 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 ---------------------------------------------------------- 0 947 646 135 1 -0.7 0.7 | 100 28 -27.8 4.9 1 925 839 165 11 -2.8 10.6 | 116 33 -29.9 14.8 2 850 1530 265 7 7.0 0.6 | 103 21 -20.1 4.8 3 700 3067 240 40 34.6 20.0 | 197 25 7.6 24.2 4 500 5590 255 54 52.2 14.0 | 234 31 25.1 18.2 5 400 7160 260 44 43.3 7.6 | 234 20 16.3 11.8 6 300 9100 270 46 46.0 -0.0 | 257 19 18.9 4.2 7 250 10270 275 44 43.8 -3.8 | 269 17 16.8 0.4 8 200 11660 275 48 47.8 -4.2 | 270 21 20.8 0.0 9 191 11938 280 40 39.4 -6.9 | 283 13 12.3 -2.7 10 150 13430 275 42 41.8 -3.7 | 268 15 14.8 0.5 11 100 15980 275 42 41.8 -3.7 | 268 15 14.8 0.5 12 70 18190 280 50 49.2 -8.7 | 281 23 22.2 -4.5 13 50 20280 270 56 56.0 -0.0 | 262 29 28.9 4.2 14 30 23390 285 62 59.9 -16.0 | 290 35 32.8 -11.8 Wind Parameters Mean winds (0-6000m): 248.8 at 36.5 knts Storm direction: 278.8 at 27.4 knts Shear (0-3000m) pos: 2.3 neg: 5.5 tot: 7.8 10-3/s Storm rel Dir Shear (0-3000m): 106.2 deg Storm rel helicity (0-3000m) pos: 207.7 neg: -34.8 tot: 172.9 m^2/s^2 ave: 57.6 10^-3 m/s^2 rel: 0.50 Storm rel vorticity (0-3000m) horiz: 11.1 stream: 5.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.06 Bulk Shear: 158.02 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 ------------------------------------------------------------------------------- 500 179 9 115 30| 9.3 0.0 9.3| 85.8 -2.1 83.7 167.4 0.55| 18.9 10.4 1000 201 8 116 27| 5.2 0.0 5.2| 91.0 -34.8 56.2 56.2 0.19| 14.7 2.8 1500 233 10 119 21| 3.5 3.7 7.2|123.0 -34.8 88.2 58.8 0.35| 13.6 4.8 2000 240 14 128 19| 2.6 5.7 8.3|157.7 -34.8 122.9 61.4 0.47| 13.1 6.2 2500 238 19 142 18| 2.1 6.6 8.6|184.2 -34.8 149.4 59.7 0.47| 12.6 5.9 3000 239 22 153 17| 2.3 5.5 7.8|207.7 -34.8 172.9 57.6 0.50| 11.1 5.5 4000 243 28 174 17| 2.7 4.1 6.8|258.2 -34.8 223.4 55.8 0.54| 9.3 5.1 5000 246 34 192 18| 2.8 3.3 6.1|311.2 -34.8 276.4 55.3 0.58| 8.2 4.7 6000 249 37 202 19| 2.0 2.7 4.7|312.7 -34.9 277.8 46.3 0.54| 7.4 4.0 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251207.12.gif