UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102800.upa.cvt Date: 0000Z 28 OCT 25 Searching for X8341... Searching the city database file for: X8341 ... Date:0000Z 28 OCT 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 151 SFC 941 648 6.0 -2.0 56 8.0 2.5 300 1 284.0 284.7 278.6 294.0 3.50 2 940 657 6.0 2.7 79 3.3 4.4 297 1 284.1 285.0 280.4 298.0 4.94 3 935 701 8.8 4.5 74 4.3 6.6 283 2 287.4 288.4 282.7 303.4 5.65 4 925 790 9.6 4.6 71 5.0 7.0 255 5 289.1 290.1 283.6 305.5 5.75 5 874 1261 10.4 -0.6 46 11.0 5.1 215 8 294.7 295.4 284.2 307.0 4.19 6 859 1406 13.8 0.8 41 13.0 7.1 202 9 299.7 300.6 286.7 313.8 4.72 7 850 1495 13.4 -1.6 35 15.0 6.0 195 9 300.2 300.9 286.1 312.3 4.00 8 725 2809 3.2 -8.8 41 12.0 -1.7 244 22 303.0 303.5 285.8 311.4 2.71 9 700 3092 0.6 -7.4 55 8.0 -2.7 255 25 303.1 303.7 286.3 312.8 3.13 10 654 3633 -4.5 -5.2 95 0.7 -4.8 257 26 303.3 304.1 287.2 315.5 3.97 11 610 4178 -9.1 -9.1 100 0.0 -9.1 259 27 304.1 304.7 286.7 313.9 3.15 12 500 5690 -19.1 -20.2 91 1.1 -19.4 265 31 309.8 310.0 287.0 314.8 1.54 13 400 7310 -31.5 -32.9 87 1.4 -31.7 270 42 314.0 314.2 287.5 316.1 0.60 14 300 9280 -46.1 -49.3 70 3.2 -46.3 250 27 320.4 320.4 289.0 320.9 0.14 15 250 10470 -56.5 -61.0 57 4.5 -56.6 240 25 322.1 322.1 289.5 322.2 0.04 16 224 11158 -61.5 -66.5 51 5.0 -61.6 245 31 324.7 324.7 290.2 324.8 0.02 17 216 11385 -58.3 -62.5 58 4.2 -58.4 251 32 333.0 333.0 292.6 333.2 0.04 18 200 11870 -56.7 -61.0 58 4.3 -56.8 265 33 343.0 343.0 295.1 343.2 0.05 19 177 12644 -55.9 -60.3 58 4.4 -56.0 271 35 356.5 356.5 298.1 356.8 0.06 20 150 13690 -57.5 -62.3 54 4.8 -57.6 280 38 371.0 371.0 300.8 371.3 0.06 21 122 14984 -60.7 -66.7 45 6.0 -60.8 283 34 387.8 387.8 303.5 387.9 0.04 22 100 16220 -61.1 -68.1 39 7.0 -61.3 285 31 409.7 409.7 306.5 409.9 0.04 23 70 18440 -61.9 -70.9 29 9.0 -62.1 280 35 452.0 452.0 311.1 452.2 0.04 24 68 18618 -62.5 -71.5 29 9.0 -62.7 281 33 454.4 454.4 311.3 454.6 0.04 25 57 19710 -59.9 -70.9 22 11.0 -60.3 286 23 483.8 483.9 313.8 484.1 0.05 26 50 20520 -62.9 -74.9 18 12.0 -63.3 290 15 495.3 495.3 314.6 495.4 0.03 27 44 21313 -59.3 -73.3 15 14.0 -59.9 286 16 522.5 522.5 316.5 522.8 0.04 28 35 22744 -59.3 -78.3 7 19.0 -60.1 280 18 557.8 557.8 318.5 558.0 0.02 29 30 23720 -54.3 -82.3 2 28.0 -56.0 275 19 596.6 596.6 320.5 596.7 0.02 30 27 24399 -52.9 -84.9 1 32.0 -55.1 278 18 618.8 618.8 321.5 618.9 0.01 31 23 25429 -55.5 -86.5 1 31.0 -57.4 282 18 640.2 640.2 322.3 640.2 0.01 32 20 26330 -51.3 -84.3 1 33.0 -54.4 285 17 679.1 679.2 323.7 679.3 0.02 33 18 27019 -48.7 -82.7 1 34.0 -52.9 708.1 708.1 324.7 708.3 0.02 34 12 29675 -50.3 -83.3 1 33.0 -55.1 789.5 789.5 327.0 789.8 0.03 35 10 30873 -47.3 -81.3 1 34.0 -53.9 843.0 843.0 328.2 843.5 0.05 TRP 224 11158 -61.5 -66.5 51 5.0 -61.6 245 31 324.7 324.7 290.2 324.8 0.02 WND Sounding variables and indices 1000-500 mb thick: 5539.00 m Freezing level: 694.59 mb = 3155.68 m = 10353.16 ft Wetbulb zero: 753.09 mb = 2494.83 m = 8185.04 ft Precipitable water: 0.67 inches Sfc-500 mean rel hum: 70.16 % Est. max temperature: 23.14 C = 73.66 F Sfc-Lift cond lev (LCL): 831.84 mb = 1673.36 m = 5489.95 ft T: 12.02 C 700-500 lapse rate: 7.58 C/km ThetaE index: 2.45 C Layer 850.0- 700.0 mb Conv cond level (CCL): 673.77 mb = 3396.19 m = 11142.21 ft Mean mixing ratio: 4.81 g/kg Conv temperature: 24.89 C = 76.80 F Cap Strength: 7.74 C Lifted Index: 4.73 C Risk: None Lifted Index @300 mb: 9.25 C Lifted Index @700 mb: 5.91 C Showalter Index: 1.80 C Risk: Showers probable Total Totals Index: 50.00 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 32.50 C Cross Totals Index: 17.50 C K Index: 22.90 Risk: 20-40 % chance of thunderstorms Sweat Index: 69.00 Risk: None Energy Index: 0.51 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 56.97 J/kg Max Up Vert Vel: 10.67 m/s Conv Inhibition (B-): 56317.02 J/kg Cap Strength: 7.74 C Lift Cond Lev (LCL): 773.37 mb = 2275.40 m = 7465.12 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 287 at 17 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 ---------------------------------------------------------- 0 941 648 300 1 0.9 -0.5 | 107 17 -15.8 4.7 1 925 790 255 5 4.8 1.3 | 119 14 -11.9 6.5 2 850 1495 195 9 2.3 8.7 | 134 20 -14.4 13.9 3 700 3092 255 25 24.1 6.5 | 213 14 7.5 11.7 4 500 5690 265 31 30.9 2.7 | 241 16 14.2 7.9 5 400 7310 270 42 42.0 -0.0 | 258 26 25.3 5.2 6 300 9280 250 27 25.4 9.2 | 211 17 8.7 14.5 7 250 10470 240 25 21.7 12.5 | 196 18 5.0 17.7 8 224 11158 245 31 28.1 13.1 | 212 22 11.4 18.3 9 200 11870 265 33 32.9 2.9 | 243 18 16.2 8.1 10 150 13690 280 38 37.4 -6.6 | 274 21 20.7 -1.4 11 100 16220 285 31 29.9 -8.0 | 282 14 13.3 -2.8 12 70 18440 280 35 34.5 -6.1 | 273 18 17.8 -0.9 13 50 20520 290 15 14.1 -5.1 | 92 3 -2.6 0.1 14 30 23720 275 19 18.9 -1.7 | 212 4 2.2 3.6 15 20 26330 285 17 16.4 -4.4 | 162 1 -0.3 0.8 Wind Parameters Mean winds (0-6000m): 257.4 at 23.3 knts Storm direction: 287.4 at 17.5 knts Shear (0-3000m) pos: 3.8 neg: 1.8 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 112.3 deg Storm rel helicity (0-3000m) pos: 139.0 neg: 0.0 tot: 139.0 m^2/s^2 ave: 46.3 10^-3 m/s^2 rel: 0.83 Storm rel vorticity (0-3000m) horiz: 6.6 stream: 5.5 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 1.27 Bulk Shear: 44.94 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 ------------------------------------------------------------------------------- 500 241 5 122 14| 0.0 7.0 7.0| 23.3 0.0 23.3 46.5 0.73| 8.6 6.3 1000 214 7 130 17| 0.0 5.5 5.5| 36.6 0.0 36.6 36.6 0.62| 7.4 4.5 1500 214 9 137 17| 2.2 3.7 5.9| 69.5 0.0 69.5 46.3 0.73| 7.2 5.2 2000 224 11 146 16| 3.5 2.8 6.3|103.1 0.0 103.1 51.5 0.79| 7.4 5.8 2500 238 14 157 14| 4.3 2.2 6.5|133.8 0.0 133.8 53.5 0.83| 7.6 6.3 3000 243 15 167 13| 3.8 1.8 5.7|139.0 0.0 139.0 46.3 0.83| 6.6 5.5 4000 250 19 183 12| 3.2 1.4 4.6|149.9 0.0 149.9 37.5 0.84| 5.3 4.5 5000 254 21 198 12| 2.9 1.1 4.0|161.7 0.0 161.7 32.3 0.85| 4.6 3.9 6000 257 23 210 12| 3.0 0.9 3.9|181.3 0.0 181.3 30.2 0.81| 4.4 3.6 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251028.00.gif