UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121400.upa.cvt Date: 0000Z 14 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:0000Z 14 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 115 SFC 937 648 6.0 4.5 90 1.5 5.2 195 5 284.4 285.4 281.4 300.1 5.64 2 925 754 6.4 4.8 89 1.6 5.6 225 17 285.9 286.9 282.3 302.2 5.83 3 867 1283 3.2 -1.7 70 4.9 1.0 236 9 287.9 288.5 280.9 299.1 3.89 4 850 1443 1.8 -1.7 78 3.5 0.3 240 7 288.0 288.7 281.1 299.4 3.97 5 796 1970 -1.1 -1.4 98 0.3 -1.2 226 11 290.4 291.2 282.5 302.9 4.34 6 700 2990 -4.5 -4.5 100 0.0 -4.5 200 19 297.5 298.2 285.0 309.2 3.91 7 677 3253 -5.5 -5.5 100 0.0 -5.5 204 22 299.2 299.9 285.5 310.5 3.75 8 500 5560 -21.7 -21.7 100 0.0 -21.7 245 46 306.6 306.8 285.7 311.0 1.35 9 400 7160 -34.3 -35.0 93 0.7 -34.4 220 69 310.4 310.5 286.1 312.1 0.49 10 315 8780 -48.7 -51.2 75 2.5 -48.8 216 67 312.3 312.3 286.3 312.7 0.11 11 300 9100 -50.3 -53.0 73 2.7 -50.4 215 66 314.5 314.5 287.0 314.8 0.09 12 284 9457 -51.7 -54.4 73 2.7 -51.8 317.4 317.4 288.0 317.7 0.08 TRP WND Sounding variables and indices 1000-500 mb thick: 5445.00 m Freezing level: 816.48 mb = 1770.15 m = 5807.50 ft Wetbulb zero: 840.81 mb = 1530.24 m = 5020.43 ft Precipitable water: 0.68 inches Sfc-500 mean rel hum: 95.38 % Est. max temperature: 12.50 C = 54.50 F Sfc-Lift cond lev (LCL): 915.63 mb = 837.14 m = 2746.49 ft T: 5.90 C 700-500 lapse rate: 6.69 C/km ThetaE index: 3.17 C Layer 867.0- 850.0 mb Conv cond level (CCL): 815.20 mb = 1778.73 m = 5835.64 ft Mean mixing ratio: 4.68 g/kg Conv temperature: 11.05 C = 51.89 F Cap Strength: 5.55 C Lifted Index: 6.99 C Risk: None Lifted Index @300 mb: 10.09 C Lifted Index @700 mb: 4.74 C Showalter Index: 7.64 C Risk: None Total Totals Index: 43.50 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 20.00 C K Index: 21.80 Risk: 20-40 % chance of thunderstorms Sweat Index: 60.00 Risk: None Energy Index: 2.39 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.62 J/kg Max Up Vert Vel: 4.61 m/s Conv Inhibition (B-): 2085.73 J/kg Cap Strength: 6.94 C Lift Cond Lev (LCL): 845.60 mb = 1484.66 m = 4870.86 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 261 at 22 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 ---------------------------------------------------------- 0 937 648 195 5 1.3 4.8 | 94 20 -20.2 1.3 1 925 754 225 17 12.0 12.0 | 132 13 -9.5 8.5 2 850 1443 240 7 6.1 3.5 | 90 15 -15.4 -0.0 3 700 2990 200 19 6.5 17.9 | 134 21 -15.0 14.3 4 500 5560 245 46 41.7 19.4 | 232 26 20.2 15.9 5 400 7160 220 69 44.4 52.9 | 205 54 22.9 49.3 6 300 9100 215 66 37.9 54.1 | 198 53 16.4 50.6 Wind Parameters Mean winds (0-6000m): 230.7 at 29.0 knts Storm direction: 260.7 at 21.8 knts Shear (0-3000m) pos: 2.0 neg: 2.4 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): 63.1 deg Storm rel helicity (0-3000m) pos: 133.4 neg: -30.4 tot: 103.0 m^2/s^2 ave: 34.3 10^-3 m/s^2 rel: 0.47 Storm rel vorticity (0-3000m) horiz: 7.9 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.33 Bulk Shear: 32.34 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 ------------------------------------------------------------------------------- 500 227 13 116 13| 8.2 0.0 8.2| 41.2 -17.7 23.5 47.0 0.27| 18.9 5.1 1000 229 11 106 14| 2.9 0.0 2.9| 47.0 -30.4 16.6 16.6 0.12| 12.6 1.5 1500 228 11 106 14| 2.0 1.6 3.5| 63.8 -30.4 33.4 22.2 0.26| 9.9 2.6 2000 222 12 111 15| 1.5 2.4 3.9| 80.3 -30.4 49.8 24.9 0.34| 8.8 2.9 2500 215 13 117 16| 1.2 2.9 4.1| 99.3 -30.4 68.8 27.5 0.38| 8.1 3.1 3000 213 15 123 16| 2.0 2.4 4.4|133.4 -30.4 103.0 34.3 0.47| 7.9 3.7 4000 218 19 139 15| 3.3 1.8 5.1|209.9 -30.4 179.4 44.9 0.59| 7.7 4.6 5000 229 24 163 13| 4.1 1.5 5.6|295.9 -34.6 261.3 52.3 0.64| 7.9 5.0 6000 231 29 184 15| 3.4 3.0 6.4|295.9-137.8 158.1 26.3 0.39| 8.3 3.3 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251214.00.gif