UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120612.upa.cvt Date: 1200Z 6 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 6 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 227 SFC 950 652 8.0 3.5 73 4.5 5.8 65 3 285.3 286.2 281.3 299.9 5.18 2 925 872 6.4 1.4 70 5.0 4.0 30 5 285.9 286.6 280.8 298.8 4.57 3 869 1380 3.2 -7.8 44 11.0 -1.0 338 4 287.7 288.1 279.0 294.8 2.44 4 850 1559 1.8 -7.2 51 9.0 -1.7 320 3 288.0 288.5 279.4 295.7 2.62 5 779 2256 -3.5 -5.7 85 2.2 -4.4 275 7 289.6 290.2 280.9 299.0 3.20 6 718 2896 -6.9 -11.2 71 4.3 -8.4 233 12 292.7 293.1 281.1 299.5 2.26 7 700 3094 -8.9 -11.9 79 3.0 -9.9 220 13 292.6 293.0 281.0 299.2 2.19 8 667 3465 -12.3 -13.3 92 1.0 -12.6 224 15 292.9 293.2 280.9 299.1 2.05 9 610 4141 -17.1 -24.1 55 7.0 -18.5 232 20 294.9 295.1 280.3 297.8 0.89 10 563 4737 -21.7 -26.3 66 4.6 -22.5 239 23 296.4 296.5 280.8 298.9 0.79 11 504 5543 -27.1 -38.1 34 11.0 -28.3 249 29 299.3 299.4 281.4 300.3 0.28 12 500 5600 -27.5 -37.5 38 10.0 -28.6 250 29 299.5 299.6 281.5 300.5 0.30 13 426 6729 -37.9 -42.7 61 4.8 -38.2 250 33 300.3 300.3 281.7 301.0 0.21 14 400 7160 -41.7 -47.7 52 6.0 -42.0 250 35 300.8 300.8 281.8 301.2 0.13 15 371 7665 -45.5 -53.5 40 8.0 -45.7 252 43 302.3 302.3 282.4 302.6 0.07 16 315 8743 -50.1 -62.0 23 11.9 -50.4 255 60 310.3 310.3 285.5 310.5 0.03 17 300 9060 -51.5 -64.5 20 13.0 -51.7 255 56 312.8 312.8 286.4 312.8 0.02 18 250 10230 -56.7 -70.7 16 14.0 -56.9 260 58 321.8 321.8 289.3 321.8 0.01 19 239 10516 -57.7 -72.7 13 15.0 -57.9 270 48 324.4 324.4 290.1 324.5 0.01 20 201 11618 -55.3 -72.3 10 17.0 -55.5 265 44 344.7 344.7 295.4 344.7 0.01 21 200 11650 -55.5 -72.5 10 17.0 -55.8 265 44 344.9 344.9 295.5 344.9 0.01 22 150 13460 -59.1 -80.1 5 21.0 -59.3 270 48 368.3 368.3 300.2 368.3 0.00 23 100 16000 -61.5 -90.5 1 29.0 -61.7 270 54 408.9 408.9 306.4 408.9 0.00 24 70 18190 -64.5 -93.5 1 29.0 -64.7 270 44 446.4 446.4 310.5 446.4 0.00 25 50 20240 -66.5 -94.5 1 28.0 -66.8 285 46 486.8 486.8 314.0 486.8 0.00 26 30 23330 -66.9 -94.9 1 28.0 -67.3 275 48 562.3 562.3 318.8 562.3 0.00 27 23 24924 -69.7 -96.7 1 27.0 -70.1 278 61 598.4 598.4 320.5 598.4 0.00 28 20 25760 -68.3 -95.3 1 27.0 -68.8 280 68 627.1 627.1 321.8 627.1 0.00 29 14 27939 -60.9 -90.9 1 30.0 -62.5 719.5 719.5 325.0 719.6 0.01 TRP 239 10516 -57.7 -72.7 13 15.0 -57.9 270 48 324.4 324.4 290.1 324.5 0.01 WND 315 8743 -50.1 -62.0 23 11.9 -50.4 255 60 310.3 310.3 285.5 310.5 0.03 Sounding variables and indices 1000-500 mb thick: 5373.00 m Freezing level: 825.89 mb = 1795.61 m = 5891.03 ft Wetbulb zero: 879.98 mb = 1278.28 m = 4193.77 ft Precipitable water: 0.41 inches Sfc-500 mean rel hum: 65.65 % Est. max temperature: 11.78 C = 53.21 F Sfc-Lift cond lev (LCL): 886.85 mb = 1214.90 m = 3985.83 ft T: 4.24 C 700-500 lapse rate: 7.42 C/km ThetaE index: 5.04 C Layer 925.0- 850.0 mb Conv cond level (CCL): 764.46 mb = 2403.70 m = 7886.05 ft Mean mixing ratio: 3.64 g/kg Conv temperature: 12.95 C = 55.31 F Cap Strength: 3.41 C Lifted Index: 3.48 C Risk: None Lifted Index @300 mb: 11.18 C Lifted Index @700 mb: 2.21 C Showalter Index: 4.53 C Risk: None Total Totals Index: 49.60 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.30 C Cross Totals Index: 20.30 C K Index: 19.10 Risk: < 20 % chance of thunderstorms Sweat Index: 47.00 Risk: None Energy Index: 1.01 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.45 J/kg Max Up Vert Vel: 4.11 m/s Conv Inhibition (B-): 49481.80 J/kg Cap Strength: 3.32 C Lift Cond Lev (LCL): 806.08 mb = 1982.71 m = 6504.87 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 275 at 13 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 ---------------------------------------------------------- 0 950 652 65 3 -2.7 -1.3 | 89 16 -15.6 -0.2 1 925 872 30 5 -2.5 -4.3 | 78 16 -15.4 -3.3 2 850 1559 320 3 1.9 -2.3 | 83 11 -11.0 -1.3 3 700 3094 220 13 8.4 10.0 | 158 12 -4.5 11.0 4 500 5600 250 29 27.3 9.9 | 233 18 14.4 11.0 5 400 7160 250 35 32.9 12.0 | 237 24 20.0 13.0 6 315 8743 255 60 58.0 15.5 | 250 48 45.1 16.6 7 300 9060 255 56 54.1 14.5 | 249 44 41.2 15.5 8 250 10230 260 58 57.1 10.1 | 256 46 44.2 11.1 9 239 10516 270 48 48.0 -0.0 | 268 35 35.1 1.0 10 200 11650 265 44 43.8 3.8 | 261 31 30.9 4.9 11 150 13460 270 48 48.0 -0.0 | 268 35 35.1 1.0 12 100 16000 270 54 54.0 -0.0 | 269 41 41.1 1.0 13 70 18190 270 44 44.0 -0.0 | 268 31 31.1 1.0 14 50 20240 285 46 44.4 -11.9 | 289 33 31.5 -10.9 15 30 23330 275 48 47.8 -4.2 | 275 35 34.9 -3.1 16 20 25760 280 68 67.0 -11.8 | 281 55 54.1 -10.8 Wind Parameters Mean winds (0-6000m): 244.6 at 17.2 knts Storm direction: 274.6 at 12.9 knts Shear (0-3000m) pos: 0.6 neg: 2.8 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 87.0 deg Storm rel helicity (0-3000m) pos: 28.7 neg: -15.9 tot: 12.8 m^2/s^2 ave: 4.3 10^-3 m/s^2 rel: 0.30 Storm rel vorticity (0-3000m) horiz: 5.0 stream: 1.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.15 Bulk Shear: 57.52 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 28 4 79 15| 0.0 4.0 4.0| 0.0 -14.5 -14.5 -29.0 -0.64| 5.6 -3.6 1000 10 4 78 14| 0.0 2.8 2.8| 4.4 -15.2 -10.8 -10.8 -0.26| 4.6 -1.2 1500 336 4 75 12| 0.0 3.2 3.2| 6.0 -15.9 -10.0 -6.7 -0.13| 4.6 -0.6 2000 292 5 83 8| 0.0 3.4 3.4| 12.9 -15.9 -3.1 -1.5 0.17| 4.9 0.9 2500 245 7 120 8| 0.0 3.3 3.3| 17.4 -15.9 1.5 0.6 0.21| 5.3 1.1 3000 235 8 132 8| 0.6 2.8 3.4| 28.7 -15.9 12.8 4.3 0.30| 5.0 1.5 4000 235 11 152 8| 1.4 2.1 3.5| 54.5 -15.9 38.6 9.6 0.44| 4.8 2.1 5000 242 14 178 8| 1.9 1.7 3.6| 85.6 -15.9 69.6 13.9 0.52| 4.6 2.4 6000 245 17 198 9| 1.6 1.7 3.3| 91.1 -15.9 75.1 12.5 0.50| 4.2 2.1 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251206.12.gif