UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042212.upa.cvt Date: 1200Z 22 APR 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 22 APR 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 174 SFC 947 647 19.6 16.8 84 2.8 17.7 250 5 297.3 299.7 292.9 334.4 12.81 2 946 656 17.6 14.4 82 3.2 15.5 248 6 295.4 297.4 290.8 326.9 10.96 3 925 849 17.2 11.2 68 6.0 13.5 205 23 296.9 298.5 289.8 323.2 9.06 4 891 1167 15.4 7.4 59 8.0 10.7 232 25 298.2 299.6 288.6 319.6 7.26 5 850 1564 13.2 7.2 67 6.0 9.7 265 27 300.0 301.3 289.4 322.2 7.51 6 844 1622 13.0 8.0 72 5.0 10.0 265 26 300.4 301.8 290.0 324.0 8.00 7 580 4528 -16.9 -17.5 95 0.6 -17.1 265 13 299.4 299.8 283.2 304.7 1.67 8 575 4592 -16.9 -17.9 92 1.0 -17.1 265 13 300.2 300.5 283.5 305.3 1.63 9 500 5610 -21.7 -23.7 84 2.0 -22.1 265 13 306.6 306.8 285.4 310.3 1.13 10 468 6095 -24.7 -27.1 80 2.4 -25.1 252 11 308.7 308.9 285.9 311.7 0.89 11 449 6397 -26.1 -30.3 68 4.2 -26.8 243 10 310.6 310.8 286.4 313.0 0.69 12 418 6910 -31.7 -38.7 50 7.0 -32.4 229 8 309.9 309.9 285.7 311.0 0.32 13 400 7220 -34.7 -39.7 60 5.0 -35.1 220 7 309.9 309.9 285.7 311.0 0.30 14 386 7467 -36.7 -41.4 62 4.7 -37.1 214 8 310.4 310.5 285.8 311.4 0.26 15 385 7485 -37.1 -41.8 62 4.7 -37.5 213 8 310.1 310.2 285.7 311.0 0.25 16 384 7503 -38.5 -43.2 61 4.7 -38.8 213 8 308.5 308.6 285.1 309.3 0.22 17 342 8288 -43.1 -47.7 60 4.6 -43.3 193 10 312.7 312.7 286.5 313.2 0.15 18 333 8467 -44.5 -48.9 61 4.4 -44.7 188 11 313.1 313.2 286.6 313.6 0.13 19 324 8648 -48.3 -52.7 60 4.4 -48.4 183 11 310.4 310.4 285.6 310.7 0.09 20 300 9150 -51.3 -55.4 61 4.1 -51.4 170 13 313.0 313.1 286.5 313.3 0.07 21 299 9172 -51.3 -55.4 61 4.1 -51.4 165 13 313.3 313.4 286.6 313.6 0.07 22 250 10330 -52.5 -57.5 55 5.0 -52.7 250 19 328.0 328.0 291.2 328.3 0.06 23 200 11790 -49.7 -56.7 44 7.0 -50.0 250 31 354.1 354.1 297.6 354.5 0.09 24 181 12443 -50.1 -58.1 38 8.0 -50.4 266 35 363.7 363.7 299.5 364.0 0.08 25 159 13279 -55.7 -63.7 36 8.0 -55.9 286 40 367.9 367.9 300.2 368.1 0.05 26 150 13650 -56.5 -64.5 36 8.0 -56.7 295 42 372.7 372.7 301.1 372.9 0.04 27 100 16200 -61.5 -69.5 34 8.0 -61.7 280 23 408.9 408.9 306.4 409.1 0.03 28 83 17369 -56.7 -64.7 36 8.0 -57.1 254 31 441.1 441.1 310.0 441.5 0.08 29 77 17842 -59.3 -67.3 35 8.0 -59.6 243 34 445.2 445.2 310.4 445.5 0.06 30 70 18440 -58.5 -66.5 35 8.0 -58.8 230 38 459.2 459.3 311.7 459.6 0.07 31 50 20570 -56.1 -64.1 36 8.0 -56.7 345 13 511.3 511.3 315.8 512.2 0.14 32 45 21243 -53.9 -61.9 37 8.0 -54.7 532.3 532.3 317.1 533.6 0.21 33 40 21997 -55.5 -63.5 36 8.0 -56.2 546.5 546.5 318.0 547.7 0.19 34 39 22159 -52.5 -61.5 33 9.0 -53.6 558.0 558.1 318.6 559.8 0.25 35 37 22497 -55.5 -64.5 32 9.0 -56.3 558.8 558.9 318.6 560.0 0.18 TRP 299 9172 -51.3 -55.4 61 4.1 -51.4 165 13 313.3 313.4 286.6 313.6 0.07 WND Sounding variables and indices 1000-500 mb thick: 5436.00 m Freezing level: 729.22 mb = 2885.36 m = 9466.30 ft Wetbulb zero: 746.20 mb = 2575.94 m = 8451.14 ft Precipitable water: 0.93 inches Sfc-500 mean rel hum: 81.33 % Est. max temperature: 22.67 C = 72.80 F Sfc-Lift cond lev (LCL): 908.74 mb = 999.51 m = 3279.18 ft T: 16.35 C 700-500 lapse rate: 7.79 C/km ThetaE index: 14.87 C Layer 946.0- 850.0 mb Conv cond level (CCL): 786.44 mb = 2168.96 m = 7115.93 ft Mean mixing ratio: 8.23 g/kg Conv temperature: 22.68 C = 72.82 F Cap Strength: 2.30 C Lifted Index: -6.43 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -5.79 C Lifted Index @700 mb: -3.19 C Showalter Index: -6.49 C Risk: Severe thunderstorms probable Total Totals Index: 63.80 C Risk: Severe Thunderstorms probable Vertical Totals Index: 34.90 C Cross Totals Index: 28.90 C K Index: 39.29 Risk: > 80 % chance of thunderstorms Sweat Index: 449.40 Risk: Severe Thunderstorms possible Energy Index: -2.77 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1736.94 J/kg Max Up Vert Vel: 58.94 m/s Conv Inhibition (B-): 58.92 J/kg Cap Strength: 2.30 C Lift Cond Lev (LCL): 814.85 mb = 1894.08 m = 6214.10 ft Lev Free Conv (LFC): 759.85 mb = 2435.52 m = 7990.45 ft Equ Level (EL): 269.85 mb = 9835.61 m = 32268.68 ft B at Equ Level: 1736.39 J/kg Max Parcel Lev (MPL): 179.85 mb = 12484.30 m = 40958.50 ft Wind level data Storm motion: 288 at 12 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 ---------------------------------------------------------- 0 947 647 250 5 4.7 1.7 | 129 8 -6.5 5.4 1 925 849 205 23 9.7 20.8 | 176 25 -1.5 24.5 2 850 1564 265 27 26.9 2.4 | 249 17 15.7 6.0 3 700 3080 265 13 13.0 1.1 | 200 5 1.7 4.8 4 500 5610 265 13 13.0 1.1 | 200 5 1.7 4.8 5 400 7220 220 7 4.5 5.4 | 143 11 -6.7 9.0 6 300 9150 170 13 -2.3 12.8 | 141 21 -13.5 16.5 7 299 9172 165 13 -3.4 12.6 | 138 22 -14.6 16.2 8 250 10330 250 19 17.9 6.5 | 213 12 6.6 10.2 9 200 11790 250 31 29.1 10.6 | 231 23 17.9 14.3 10 150 13650 295 42 38.1 -17.7 | 298 30 26.8 -14.1 11 100 16200 280 23 22.7 -4.0 | 272 11 11.4 -0.3 12 70 18440 230 38 29.1 24.4 | 212 33 17.9 28.1 13 50 20570 345 13 3.4 -12.6 | 41 12 -7.9 -8.9 Wind Parameters Mean winds (0-6000m): 258.1 at 15.7 knts Storm direction: 288.1 at 11.8 knts Shear (0-3000m) pos: 2.6 neg: 2.2 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 70.3 deg Storm rel helicity (0-3000m) pos: 155.1 neg: -16.2 tot: 138.9 m^2/s^2 ave: 46.3 10^-3 m/s^2 rel: 0.45 Storm rel vorticity (0-3000m) horiz: 10.4 stream: 4.6 10^-3/s Energy-Hel index: 1.68 Bulk Rich Number: 75.12 Bulk Shear: 23.12 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 ------------------------------------------------------------------------------- 500 216 20 182 20| 0.0 20.6 20.6| 80.9 0.0 80.9 161.9 0.60| 32.3 19.3 1000 237 23 207 18| 7.9 10.3 18.2|155.1 0.0 155.1 155.1 0.71| 24.5 17.4 1500 248 23 220 16| 5.3 5.7 11.0|155.1 -5.7 149.5 99.7 0.62| 17.9 11.1 2000 252 22 224 14| 4.0 3.7 7.6|155.1 -11.3 143.8 71.9 0.53| 14.6 7.7 2500 254 21 223 13| 3.2 2.7 5.8|155.1 -16.2 138.9 55.6 0.45| 12.5 5.6 3000 256 20 222 11| 2.6 2.2 4.9|155.1 -16.2 138.9 46.3 0.45| 10.4 4.6 4000 257 18 219 10| 2.0 1.7 3.7|155.1 -16.2 138.9 34.7 0.45| 7.8 3.5 5000 259 17 217 9| 1.6 1.4 2.9|155.1 -16.5 138.6 27.7 0.44| 6.3 2.8 6000 258 16 211 8| 1.3 1.5 2.8|155.1 -26.2 129.0 21.5 0.32| 5.8 1.9 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20250422.12.gif