UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042700.upa.cvt Date: 0000Z 27 APR 25 Searching for X8341... Searching the city database file for: X8341 ... Date:0000Z 27 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 118 SFC 940 651 17.8 6.8 48 11.0 11.5 195 3 296.1 297.3 287.2 315.4 6.60 2 929 752 21.4 10.4 49 11.0 14.6 301 13 300.8 302.4 290.6 326.1 8.55 3 925 790 21.8 10.8 50 11.0 14.9 340 17 301.6 303.2 291.0 327.7 8.82 4 898 1017 24.2 12.2 47 12.0 16.4 12 13 306.6 308.5 293.5 336.8 9.99 5 897 1025 23.4 6.4 33 17.0 13.3 13 13 305.9 307.2 290.7 326.3 6.73 6 896 1034 20.6 3.6 33 17.0 11.1 14 13 303.1 304.1 288.7 319.8 5.53 7 895 1042 20.2 3.2 32 17.0 10.7 15 13 302.8 303.8 288.4 319.1 5.38 8 300 8510 -58.1 -65.1 40 7.0 -58.2 350 40 303.4 303.5 282.8 303.5 0.02 9 250 9660 -58.3 -65.3 40 7.0 -58.4 40 40 319.4 319.4 288.6 319.5 0.02 10 200 11060 -58.5 -65.5 40 7.0 -58.6 245 56 340.1 340.1 294.4 340.2 0.03 11 188 11447 -58.5 -65.5 40 7.0 -58.6 244 50 346.2 346.2 295.8 346.3 0.03 12 187 11481 -58.5 -68.5 27 10.0 -58.6 244 50 346.7 346.7 295.9 346.8 0.02 13 169 12121 -54.1 -65.1 25 11.0 -54.4 242 40 364.2 364.2 299.5 364.4 0.04 14 162 12390 -55.5 -67.5 21 12.0 -55.8 241 36 366.3 366.3 299.9 366.4 0.03 15 150 12880 -54.5 -66.5 21 12.0 -54.8 240 29 376.2 376.2 301.6 376.3 0.03 16 115 14600 -51.3 -63.3 23 12.0 -51.8 122 21 411.8 411.8 306.7 412.2 0.07 17 102 15381 -51.3 -51.3 100 0.0 -51.3 69 18 426.2 426.3 308.6 427.9 0.33 18 100 15510 -51.3 -51.3 100 0.0 -51.3 60 17 428.6 428.7 308.9 430.4 0.34 19 95 15843 -51.3 -51.3 100 0.0 -51.3 434.9 435.0 309.6 436.8 0.36 TRP WND Sounding variables and indices 1000-500 mb thick: 4901.92 m Freezing level: 741.50 mb = 2968.68 m = 9739.65 ft Wetbulb zero: 802.24 mb = 1789.65 m = 5871.47 ft Precipitable water: 0.80 inches Sfc-500 mean rel hum: 34.40 % Est. max temperature: 25.76 C = 78.37 F Sfc-Lift cond lev (LCL): 797.43 mb = 1830.76 m = 6006.35 ft T: 11.93 C 700-500 lapse rate: 10.48 C/km ThetaE index: 33.25 C Layer 897.0- 250.0 mb Conv cond level (CCL): 698.02 mb = 2740.40 m = 8990.70 ft Mean mixing ratio: 6.53 g/kg Conv temperature: 26.87 C = 80.37 F Cap Strength: 1.99 C Lifted Index: -6.47 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -12.89 C Lifted Index @700 mb: 1.11 C Showalter Index: -3.48 C Risk: Severe thunderstorms possible Total Totals Index: 59.50 C Risk: Severe Thunderstorms probable Vertical Totals Index: 38.01 C Cross Totals Index: 21.48 C K Index: 23.24 Risk: 20-40 % chance of thunderstorms Sweat Index: 266.07 Risk: None Energy Index: -3.08 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2160.77 J/kg Max Up Vert Vel: 65.74 m/s Conv Inhibition (B-): 75.74 J/kg Cap Strength: 3.62 C Lift Cond Lev (LCL): 722.54 mb = 2504.57 m = 8216.98 ft Lev Free Conv (LFC): 667.54 mb = 3045.50 m = 9991.68 ft Equ Level (EL): 237.54 mb = 9980.84 m = 32745.13 ft B at Equ Level: 2146.90 J/kg Max Parcel Lev (MPL): 147.54 mb = 12987.14 m = 42608.22 ft Wind level data Storm motion: 343 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 ---------------------------------------------------------- 0 940 651 195 3 0.8 2.9 | 168 19 -4.1 18.7 1 925 790 340 17 5.8 -16.0 | 278 1 0.9 -0.1 2 850 1512 70 7 -6.6 -2.4 | 139 18 -11.5 13.5 3 700 2968 310 13 10.0 -8.4 | 214 9 5.0 7.5 4 500 5250 310 44 33.7 -28.3 | 293 31 28.8 -12.4 5 400 6690 290 11 10.3 -3.8 | 204 13 5.4 12.1 6 300 8510 350 40 6.9 -39.4 | 355 24 2.0 -23.5 7 250 9660 40 40 -25.7 -30.6 | 64 34 -30.6 -14.8 8 200 11060 245 56 50.8 23.7 | 229 61 45.8 39.5 9 150 12880 240 29 25.1 14.5 | 214 36 20.2 30.3 10 100 15510 60 17 -14.7 -8.5 | 111 21 -19.6 7.3 Wind Parameters Mean winds (0-6000m): 312.8 at 22.1 knts Storm direction: 342.8 at 16.6 knts Shear (0-3000m) pos: 1.2 neg: 5.1 tot: 6.3 10-3/s Storm rel Dir Shear (0-3000m): 95.3 deg Storm rel helicity (0-3000m) pos: 106.6 neg: -12.8 tot: 93.8 m^2/s^2 ave: 31.3 10^-3 m/s^2 rel: 0.27 Storm rel vorticity (0-3000m) horiz: 13.9 stream: 3.8 10^-3/s Energy-Hel index: 1.05 Bulk Rich Number: 72.66 Bulk Shear: 29.74 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 ------------------------------------------------------------------------------- 500 354 13 127 4| 0.0 15.4 15.4| 47.3 -3.7 43.6 87.1 0.03| 43.0 1.4 1000 5 11 129 8| 3.6 7.7 11.3| 69.6 -6.8 62.9 62.9 0.12| 26.5 3.3 1500 15 10 129 10| 2.4 6.6 9.0| 69.8 -12.8 57.0 38.0 0.08| 19.9 1.7 2000 4 10 135 8| 1.8 5.5 7.3| 78.1 -12.8 65.3 32.6 0.15| 17.0 2.5 2500 344 11 160 6| 1.5 4.8 6.3| 90.5 -12.8 77.7 31.1 0.22| 15.2 3.4 3000 332 12 189 5| 1.2 5.1 6.3|106.6 -12.8 93.8 31.3 0.27| 13.9 3.8 4000 320 17 242 7| 0.9 5.6 6.5|138.9 -12.8 126.1 31.5 0.31| 12.2 3.8 5000 315 22 267 10| 0.7 4.3 5.0|158.2 -62.5 95.7 19.1 0.22| 11.6 2.6 6000 313 22 266 11| 0.6 1.6 2.2|158.2-153.7 4.5 0.8 0.04| 11.7 0.4 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20250427.00.gif