UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120800.upa.cvt Date: 0000Z 8 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:0000Z 8 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 170 SFC 943 650 5.0 3.5 90 1.5 4.3 195 1 282.9 283.8 280.1 297.4 5.22 2 936 712 7.0 4.3 83 2.7 5.6 205 5 285.5 286.5 281.8 301.1 5.56 3 925 809 6.4 2.9 78 3.5 4.7 220 11 285.9 286.7 281.4 300.2 5.10 4 899 1042 4.6 -1.4 65 6.0 2.0 228 17 286.3 287.0 280.1 297.3 3.84 5 850 1497 1.6 -1.8 78 3.4 0.1 245 29 287.8 288.5 281.0 299.1 3.94 6 793 2053 -2.1 -2.1 100 0.0 -2.1 249 31 289.6 290.4 282.0 301.6 4.13 7 704 2988 -8.9 -8.9 100 0.0 -8.9 255 35 292.2 292.6 281.5 300.4 2.77 8 700 3032 -9.1 -9.1 100 0.0 -9.1 255 35 292.4 292.9 281.5 300.6 2.74 9 545 4929 -20.9 -20.9 100 0.0 -20.9 251 49 300.1 300.3 283.1 304.3 1.33 10 500 5560 -26.3 -26.4 99 0.1 -26.3 250 54 301.0 301.1 283.0 303.8 0.88 11 400 7130 -40.1 -42.5 78 2.4 -40.2 240 64 302.9 302.9 282.8 303.7 0.23 12 364 7764 -45.9 -49.4 68 3.5 -46.0 243 64 303.4 303.4 282.9 303.8 0.12 13 333 8352 -48.5 -53.5 56 5.0 -48.7 246 64 307.7 307.7 284.5 308.0 0.08 14 300 9030 -53.7 -59.7 48 6.0 -53.8 250 64 309.7 309.7 285.2 309.8 0.04 15 293 9181 -55.1 -61.1 47 6.0 -55.2 251 63 309.8 309.8 285.3 309.9 0.03 16 253 10106 -60.3 -68.3 34 8.0 -60.4 260 60 315.3 315.3 287.2 315.4 0.02 17 250 10180 -60.1 -68.1 34 8.0 -60.2 260 60 316.7 316.7 287.7 316.8 0.02 18 200 11580 -58.5 -66.5 35 8.0 -58.6 270 54 340.1 340.1 294.4 340.2 0.02 19 154 13224 -57.1 -66.1 31 9.0 -57.3 270 47 368.9 368.9 300.4 369.1 0.03 20 150 13390 -57.5 -66.5 31 9.0 -57.7 270 46 371.0 371.0 300.8 371.2 0.03 21 100 15930 -58.7 -72.7 15 14.0 -59.0 270 38 414.3 414.3 307.0 414.4 0.02 22 70 18180 -56.9 -80.9 3 24.0 -57.5 270 52 462.7 462.7 312.0 462.7 0.01 23 61 19041 -61.1 -91.1 1 30.0 -61.5 270 57 471.9 471.9 312.8 471.9 0.00 24 55 19686 -58.9 -88.9 1 30.0 -59.5 270 61 491.1 491.1 314.3 491.1 0.00 25 50 20280 -60.9 -90.9 1 30.0 -61.4 270 64 500.0 500.0 314.9 500.0 0.00 26 39 21815 -64.1 -93.1 1 29.0 -64.6 272 73 528.7 528.7 316.8 528.7 0.00 27 31 23228 -62.3 -91.3 1 29.0 -63.0 275 82 569.4 569.4 319.1 569.5 0.00 28 30 23430 -63.7 -92.7 1 29.0 -64.3 275 83 571.0 571.0 319.2 571.0 0.00 29 22 25314 -67.9 -94.9 1 27.0 -68.4 611.4 611.4 321.1 611.4 0.00 TRP 253 10106 -60.3 -68.3 34 8.0 -60.4 260 60 315.3 315.3 287.2 315.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 5390.00 m Freezing level: 825.35 mb = 1737.39 m = 5700.04 ft Wetbulb zero: 846.49 mb = 1530.10 m = 5019.96 ft Precipitable water: 0.55 inches Sfc-500 mean rel hum: 94.43 % Est. max temperature: 11.67 C = 53.00 F Sfc-Lift cond lev (LCL): 921.42 mb = 840.75 m = 2758.34 ft T: 6.16 C 700-500 lapse rate: 6.80 C/km ThetaE index: 3.81 C Layer 925.0- 850.0 mb Conv cond level (CCL): 803.02 mb = 1952.36 m = 6405.29 ft Mean mixing ratio: 4.29 g/kg Conv temperature: 11.34 C = 52.42 F Cap Strength: 3.63 C Lifted Index: 3.50 C Risk: None Lifted Index @300 mb: 7.80 C Lifted Index @700 mb: 1.02 C Showalter Index: 3.27 C Risk: None Total Totals Index: 52.40 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 27.90 C Cross Totals Index: 24.50 C K Index: 26.10 Risk: 40-60 % chance of thunderstorms Sweat Index: 215.89 Risk: None Energy Index: 0.95 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.58 J/kg Max Up Vert Vel: 4.81 m/s Conv Inhibition (B-): 40196.92 J/kg Cap Strength: 3.62 C Lift Cond Lev (LCL): 836.27 mb = 1627.44 m = 5339.32 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 279 at 30 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 ---------------------------------------------------------- 0 943 650 195 1 0.3 1.0 | 101 30 -29.6 5.8 1 925 809 220 11 7.1 8.4 | 120 26 -22.8 13.3 2 850 1497 245 29 26.3 12.3 | 168 17 -3.5 17.1 3 700 3032 255 35 33.8 9.1 | 196 14 4.0 13.9 4 500 5560 250 54 50.7 18.5 | 222 31 20.9 23.3 5 400 7130 240 64 55.4 32.0 | 215 45 25.6 36.9 6 300 9030 250 64 60.1 21.9 | 229 40 30.3 26.8 7 253 10106 260 60 59.1 10.4 | 242 33 29.3 15.3 8 250 10180 260 60 59.1 10.4 | 242 33 29.3 15.3 9 200 11580 270 54 54.0 -0.0 | 259 25 24.2 4.9 10 150 13390 270 46 46.0 -0.0 | 253 17 16.2 4.9 11 100 15930 270 38 38.0 -0.0 | 239 10 8.2 4.9 12 70 18180 270 52 52.0 -0.0 | 258 23 22.2 4.9 13 50 20280 270 64 64.0 -0.0 | 262 35 34.2 4.9 14 30 23430 275 83 82.7 -7.2 | 273 53 52.9 -2.4 Wind Parameters Mean winds (0-6000m): 249.3 at 40.3 knts Storm direction: 279.3 at 30.2 knts Shear (0-3000m) pos: 6.1 neg: 0.7 tot: 6.7 10-3/s Storm rel Dir Shear (0-3000m): 106.1 deg Storm rel helicity (0-3000m) pos: 221.1 neg: 0.0 tot: 221.1 m^2/s^2 ave: 73.7 10^-3 m/s^2 rel: 0.89 Storm rel vorticity (0-3000m) horiz: 7.4 stream: 6.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.10 Bulk Shear: 112.99 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 ------------------------------------------------------------------------------- 500 226 12 123 25| 19.7 0.0 19.7|126.3 0.0 126.3 252.6 0.91| 20.5 18.6 1000 239 19 138 20| 14.9 0.0 14.9|178.9 0.0 178.9 178.9 0.91| 16.1 14.6 1500 243 23 148 18| 10.6 0.0 10.6|189.3 0.0 189.3 126.2 0.91| 11.6 10.5 2000 246 25 157 17| 8.5 0.0 8.5|199.7 0.0 199.7 99.8 0.91| 9.4 8.5 2500 248 27 163 16| 7.3 0.0 7.3|210.2 0.0 210.2 84.1 0.91| 8.1 7.4 3000 249 29 170 15| 6.1 0.7 6.7|221.1 0.0 221.1 73.7 0.89| 7.4 6.6 4000 250 33 183 16| 4.6 1.5 6.0|241.4 0.0 241.4 60.4 0.82| 6.6 5.4 5000 250 37 195 18| 3.6 2.0 5.6|257.2 -1.6 255.5 51.1 0.75| 6.0 4.5 6000 249 40 202 21| 3.0 2.3 5.3|257.2 -29.1 228.1 38.0 0.61| 5.8 3.5 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251208.00.gif