UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122100.upa.cvt Date: 0000Z 21 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:0000Z 21 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 169 SFC 942 648 1.0 -0.5 90 1.5 0.4 270 1 278.9 279.5 276.5 289.7 3.91 2 925 794 0.4 -2.2 83 2.6 -0.7 270 9 279.7 280.3 276.4 289.5 3.51 3 868 1300 -4.1 259 24 280.2 4 850 1465 -4.5 255 29 281.4 5 732 2636 -7.5 -7.5 100 0.0 -7.5 243 18 290.4 291.0 281.0 299.2 2.97 6 700 2983 -9.7 -9.7 100 0.0 -9.7 240 15 291.7 292.2 281.1 299.5 2.61 7 636 3716 -14.5 239 27 294.4 8 584 4359 -16.5 237 37 299.3 9 525 5152 -21.3 -21.3 100 0.0 -21.3 236 50 302.8 303.1 284.2 307.1 1.33 10 500 5510 -24.3 -24.3 100 0.0 -24.3 235 56 303.4 303.6 284.1 306.9 1.07 11 400 7100 -36.1 -37.4 88 1.3 -36.2 240 75 308.1 308.1 285.1 309.4 0.38 12 310 8817 -50.9 -54.0 69 3.1 -51.0 231 79 310.7 310.7 285.7 311.0 0.08 13 300 9030 -51.5 -54.6 69 3.1 -51.6 230 79 312.8 312.8 286.4 313.1 0.08 14 250 10200 -56.1 -59.9 62 3.8 -56.2 240 77 322.7 322.7 289.6 322.9 0.05 15 228 10783 -59.1 -63.2 59 4.1 -59.2 240 77 326.7 326.7 290.8 326.8 0.03 16 200 11610 -57.5 -61.2 63 3.7 -57.6 250 68 341.7 341.7 294.8 341.9 0.05 17 171 12601 -54.5 -58.2 64 3.7 -54.6 247 56 362.3 362.4 299.2 362.7 0.09 18 150 13430 -57.9 -62.1 59 4.2 -58.0 245 46 370.3 370.3 300.7 370.6 0.06 19 140 13865 -59.3 -63.5 58 4.2 -59.4 247 46 375.2 375.3 301.5 375.5 0.05 20 100 15980 -59.1 -65.1 46 6.0 -59.3 255 46 413.5 413.6 307.0 413.8 0.06 21 78 17520 -63.1 -70.1 38 7.0 -63.3 255 39 435.7 435.7 309.4 435.9 0.04 22 70 18190 -60.1 -68.1 34 8.0 -60.4 255 36 455.8 455.8 311.4 456.1 0.06 23 66 18559 -59.9 -67.9 34 8.0 -60.2 257 36 464.0 464.0 312.1 464.3 0.06 24 58 19364 -63.3 -72.3 28 9.0 -63.6 261 36 473.8 473.8 313.0 474.0 0.04 25 50 20280 -63.7 -73.7 24 10.0 -64.0 265 36 493.4 493.4 314.5 493.6 0.04 26 48 20531 -61.7 -72.7 22 11.0 -62.1 265 38 503.9 503.9 315.2 504.2 0.04 27 42 21350 -65.3 -77.3 17 12.0 -65.6 265 43 514.6 514.6 315.9 514.8 0.02 28 30 23400 -64.3 -81.3 8 17.0 -64.8 265 56 569.3 569.4 319.1 569.5 0.02 29 29 23607 -63.9 -81.9 7 18.0 -64.5 265 57 576.0 576.0 319.5 576.1 0.02 30 24 24760 -66.1 -90.1 2 24.0 -66.7 265 62 601.6 601.6 320.7 601.7 0.00 31 20 25880 -60.7 -90.7 1 30.0 -61.9 265 66 650.4 650.4 322.7 650.4 0.01 32 13 28581 -58.5 -88.5 1 30.0 -60.7 251 87 743.3 743.3 325.7 743.4 0.01 33 11 29665 -45.7 -80.7 1 35.0 -52.7 245 95 826.1 826.2 327.9 826.6 0.05 34 11 29665 -45.7 -80.7 1 35.0 -52.7 245 95 826.1 826.2 327.9 826.6 0.05 35 10 30300 -46.3 -80.3 1 34.0 -53.4 235 89 846.7 846.8 328.3 847.3 0.06 36 9.8 30434 -46.5 -80.5 1 34.0 -53.5 850.9 850.9 328.4 851.5 0.06 TRP 228 10783 -59.1 -63.2 59 4.1 -59.2 240 77 326.7 326.7 290.8 326.8 0.03 WND 11 29665 -45.7 -80.7 1 35.0 -52.7 245 95 826.1 826.2 327.9 826.6 0.05 Sounding variables and indices 1000-500 mb thick: 5341.00 m Freezing level: 919.93 mb = 838.96 m = 2752.47 ft Wetbulb zero: 936.01 mb = 699.18 m = 2293.86 ft Precipitable water: 0.50 inches Sfc-500 mean rel hum: 97.75 % Est. max temperature: 7.67 C = 45.81 F Sfc-Lift cond lev (LCL): 920.16 mb = 835.75 m = 2741.93 ft T: 0.03 C 700-500 lapse rate: 5.78 C/km ThetaE index: 0.18 C Layer 925.0- 868.0 mb Conv cond level (CCL): 880.13 mb = 1189.43 m = 3902.27 ft Mean mixing ratio: 3.45 g/kg Conv temperature: 2.18 C = 35.92 F Cap Strength: 12.02 C Lifted Index: 12.07 C Risk: None Lifted Index @300 mb: 16.33 C Lifted Index @700 mb: 6.04 C Showalter Index: 11.36 C Risk: None Total Totals Index: 39.98 C Risk: None Vertical Totals Index: 19.80 C Cross Totals Index: 20.18 C K Index: 15.68 Risk: < 20 % chance of thunderstorms Sweat Index: 114.00 Risk: None Energy Index: 3.34 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.78 J/kg Max Up Vert Vel: 4.19 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 12.06 C Lift Cond Lev (LCL): 879.05 mb = 1199.26 m = 3934.52 ft Lev Free Conv (LFC): 874.05 mb = 1244.62 m = 4083.36 ft Equ Level (EL): 854.05 mb = 1427.56 m = 4683.53 ft B at Equ Level: 7.92 J/kg Max Parcel Lev (MPL): 824.05 mb = 1707.99 m = 5603.57 ft Wind level data Storm motion: 270 at 26 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 ---------------------------------------------------------- 0 942 648 270 1 1.0 -0.0 | 90 25 -25.3 -0.0 1 925 794 270 9 9.0 -0.0 | 90 17 -17.3 -0.0 2 850 1465 255 29 28.0 7.5 | 193 8 1.7 7.5 3 700 2983 240 15 13.0 7.5 | 119 15 -13.3 7.5 4 500 5510 235 56 45.9 32.1 | 211 38 19.6 32.1 5 400 7100 240 75 65.0 37.5 | 226 54 38.7 37.5 6 300 9030 230 79 60.5 50.8 | 214 61 34.2 50.7 7 250 10200 240 77 66.7 38.5 | 226 56 40.4 38.5 8 228 10783 240 77 66.7 38.5 | 226 56 40.4 38.5 9 200 11610 250 68 63.9 23.3 | 238 44 37.6 23.2 10 150 13430 245 46 41.7 19.4 | 218 25 15.4 19.4 11 100 15980 255 46 44.4 11.9 | 237 22 18.1 11.9 12 70 18190 255 36 34.8 9.3 | 222 13 8.5 9.3 13 50 20280 265 36 35.9 3.1 | 252 10 9.6 3.1 14 30 23400 265 56 55.8 4.9 | 261 30 29.5 4.8 15 20 25880 265 66 65.7 5.8 | 262 40 39.5 5.7 16 11 29665 245 95 86.1 40.1 | 236 72 59.8 40.1 17 10 30300 235 89 72.9 51.0 | 222 69 46.6 51.0 Wind Parameters Mean winds (0-6000m): 239.9 at 35.1 knts Storm direction: 269.9 at 26.3 knts Shear (0-3000m) pos: 0.0 neg: 4.3 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 72.4 deg Storm rel helicity (0-3000m) pos: 61.7 neg: -32.8 tot: 28.9 m^2/s^2 ave: 9.6 10^-3 m/s^2 rel: 0.20 Storm rel vorticity (0-3000m) horiz: 9.1 stream: 1.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.11 Bulk Shear: 83.40 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 ------------------------------------------------------------------------------- 500 265 12 94 15| 0.0 19.1 19.1| 11.0 -0.1 11.0 21.9 0.20| 19.3 3.9 1000 258 19 115 9| 0.0 13.6 13.6| 24.2 -3.1 21.1 21.1 0.36| 15.4 5.6 1500 255 21 130 8| 0.0 7.5 7.5| 24.2 -13.8 10.5 7.0 0.18| 12.0 2.1 2000 253 21 132 9| 0.0 4.4 4.4| 24.2 -25.2 -1.0 -0.5 0.06| 10.3 0.6 2500 252 20 130 10| 0.0 3.5 3.5| 32.8 -32.8 -0.0 -0.0 0.06| 9.3 0.5 3000 250 20 133 10| 0.0 4.3 4.3| 61.7 -32.8 28.9 9.6 0.20| 9.1 1.8 4000 245 24 154 11| 0.0 5.3 5.3|118.0 -32.8 85.2 21.3 0.32| 9.0 2.9 5000 241 29 177 14| 0.0 5.8 5.8|172.3 -32.8 139.5 27.9 0.34| 8.8 3.0 6000 240 35 193 18| 1.1 4.9 5.9|256.0 -32.8 223.2 37.2 0.37| 8.4 3.1 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251221.00.gif