UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042512.upa.cvt Date: 1200Z 25 APR 25 Searching for U4908... Searching the city database file for: U4908 ... Date:1200Z 25 APR 25 Station: U4908 WMO ident: 24908 Latitude: 60.33 Longitude: 102.27 ------------------------------------------------------------------------------- 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 989 257 -0.7 -5.7 69 5.0 -2.4 250 1 273.3 273.7 271.3 280.3 2.52 2 925 786 -5.7 -11.7 63 6.0 -7.4 255 19 273.5 273.8 270.1 278.2 1.68 3 850 1441 -11.5 -17.5 61 6.0 -12.9 285 19 274.1 274.3 269.5 277.4 1.14 4 700 2894 -23.7 -28.6 64 4.9 -24.3 270 25 276.2 276.3 269.8 277.8 0.52 5 669 3223 -26.1 -30.9 64 4.8 -26.6 275 26 277.1 277.2 270.2 278.5 0.43 6 649 3442 -27.5 -32.5 62 5.0 -28.0 279 27 278.0 278.0 270.7 279.2 0.38 7 642 3520 -27.5 -32.5 62 5.0 -28.0 280 28 278.8 278.9 271.2 280.0 0.39 8 522 4982 -36.3 -45.3 39 9.0 -36.8 305 34 285.2 285.3 274.4 285.7 0.13 9 500 5280 -37.9 -46.9 38 9.0 -38.3 310 35 286.8 286.8 275.2 287.2 0.11 10 475 5631 -40.3 -49.3 38 9.0 -40.6 313 44 288.1 288.1 275.8 288.4 0.09 11 434 6241 -42.9 -51.9 37 9.0 -43.2 320 60 292.3 292.3 277.9 292.6 0.07 12 420 6462 -42.5 -52.5 33 10.0 -42.9 322 66 295.6 295.6 279.5 295.9 0.07 13 400 6790 -43.5 -53.5 32 10.0 -43.8 325 75 298.5 298.5 280.8 298.7 0.07 14 376 7205 -45.5 -55.9 30 10.5 -45.8 325 87 301.1 301.2 281.9 301.3 0.05 15 349 7701 -47.9 -58.9 27 11.0 -48.1 325 81 304.4 304.4 283.2 304.5 0.04 16 300 8700 -48.5 -60.5 24 12.0 -48.8 325 58 317.0 317.0 287.8 317.1 0.04 17 295 8810 -49.1 -61.1 23 12.0 -49.4 325 56 317.7 317.7 288.0 317.8 0.03 18 250 9900 -46.7 -60.7 19 14.0 -47.1 325 38 336.6 336.6 293.5 336.8 0.04 19 226 10569 -45.3 -60.3 17 15.0 -45.9 327 29 348.6 348.6 296.4 348.9 0.05 20 200 11380 -45.9 -61.9 15 16.0 -46.6 330 19 360.1 360.1 298.8 360.3 0.05 21 150 13280 -47.7 -65.7 11 18.0 -48.4 295 7 387.9 387.9 303.5 388.1 0.04 22 122 14641 -48.5 -67.5 9 19.0 -49.3 290 11 410.0 410.0 306.5 410.2 0.04 23 105 15622 -50.9 -69.9 9 19.0 -51.7 286 14 423.4 423.4 308.1 423.6 0.03 24 100 15940 -50.5 -69.5 9 19.0 -51.3 285 15 430.2 430.2 308.9 430.3 0.03 25 74 17899 -52.1 -71.1 8 19.0 -53.0 340 5 465.5 465.5 312.3 465.7 0.04 26 70 18260 -51.1 -71.1 7 20.0 -52.2 350 3 475.1 475.1 313.1 475.3 0.04 27 50 20450 -51.1 -71.1 7 20.0 -52.5 125 3 523.1 523.1 316.5 523.4 0.05 28 30 23780 -51.5 -71.5 7 20.0 -53.6 280 7 604.2 604.3 320.8 604.9 0.08 29 20 26420 -49.9 -70.9 7 21.0 -53.2 65 5 683.4 683.5 323.9 684.6 0.13 30 19 26756 -49.1 -71.1 6 22.0 -52.8 696.0 696.1 324.3 697.2 0.14 TRP 349 7701 -47.9 -58.9 27 11.0 -48.1 325 81 304.4 304.4 283.2 304.5 0.04 WND 376 7205 -45.5 -55.9 30 10.5 -45.8 325 87 301.1 301.2 281.9 301.3 0.05 Sounding variables and indices 1000-500 mb thick: 5111.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.18 inches Sfc-500 mean rel hum: 57.78 % Est. max temperature: 0.24 C = 32.44 F Sfc-Lift cond lev (LCL): 914.54 mb = 874.11 m = 2867.78 ft T: -6.48 C 700-500 lapse rate: 5.95 C/km ThetaE index: 2.89 C Layer 925.0- 700.0 mb Conv cond level (CCL): 852.93 mb = 1414.35 m = 4640.19 ft Mean mixing ratio: 1.90 g/kg Conv temperature: 0.06 C = 32.11 F Cap Strength: 5.87 C Lifted Index: 6.96 C Risk: None Lifted Index @300 mb: 27.12 C Lifted Index @700 mb: -0.11 C Showalter Index: 8.08 C Risk: None Total Totals Index: 46.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.40 C Cross Totals Index: 20.40 C K Index: 4.00 Risk: None Sweat Index: 73.00 Risk: None Energy Index: 2.01 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.43 J/kg Max Up Vert Vel: 2.62 m/s Conv Inhibition (B-): 11.76 J/kg Cap Strength: 6.94 C Lift Cond Lev (LCL): 860.52 mb = 1345.73 m = 4415.06 ft Lev Free Conv (LFC): 745.52 mb = 2422.52 m = 7947.82 ft Equ Level (EL): 685.52 mb = 3045.98 m = 9993.24 ft B at Equ Level: 3.13 J/kg Max Parcel Lev (MPL): 655.52 mb = 3370.19 m = 11056.91 ft Wind level data Storm motion: 324 at 21 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 ---------------------------------------------------------- 0 989 257 250 1 0.9 0.3 | 147 21 -11.5 17.6 1 925 786 255 19 18.4 4.9 | 195 23 5.9 22.2 2 850 1441 285 19 18.4 -4.9 | 206 14 5.9 12.3 3 700 2894 270 25 25.0 -0.0 | 216 21 12.6 17.3 4 500 5280 310 35 26.8 -22.5 | 290 15 14.4 -5.2 5 400 6790 325 75 43.0 -61.4 | 325 54 30.6 -44.2 6 376 7205 325 87 49.9 -71.3 | 325 66 37.5 -54.0 7 349 7701 325 81 46.5 -66.4 | 325 60 34.0 -49.1 8 300 8700 325 58 33.3 -47.5 | 325 37 20.8 -30.2 9 250 9900 325 38 21.8 -31.1 | 326 17 9.4 -13.9 10 200 11380 330 19 9.5 -16.5 | 105 3 -2.9 0.8 11 150 13280 295 7 6.3 -3.0 | 157 16 -6.1 14.3 12 100 15940 285 15 14.5 -3.9 | 189 14 2.0 13.4 13 70 18260 350 3 0.5 -3.0 | 140 19 -11.9 14.3 14 50 20450 125 3 -2.5 1.7 | 142 24 -14.9 19.0 15 30 23780 280 7 6.9 -1.2 | 161 17 -5.5 16.0 16 20 26420 65 5 -4.5 -2.1 | 132 23 -17.0 15.2 Wind Parameters Mean winds (0-6000m): 294.2 at 28.4 knts Storm direction: 324.2 at 21.3 knts Shear (0-3000m) pos: 3.8 neg: 1.0 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 77.1 deg Storm rel helicity (0-3000m) pos: 143.2 neg: 0.0 tot: 143.2 m^2/s^2 ave: 47.7 10^-3 m/s^2 rel: 0.70 Storm rel vorticity (0-3000m) horiz: 6.6 stream: 4.6 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.05 Bulk Shear: 63.43 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 ------------------------------------------------------------------------------- 500 255 9 171 20| 17.5 0.0 17.5| 92.0 0.0 92.0 184.1 0.98| 17.6 17.2 1000 262 14 185 19| 9.3 0.0 9.3|112.1 0.0 112.1 112.1 0.83| 12.7 10.5 1500 270 16 192 18| 6.7 0.0 6.7|118.5 0.0 118.5 79.0 0.76| 9.9 7.6 2000 273 17 197 17| 5.0 0.7 5.7|123.5 0.0 123.5 61.8 0.73| 8.2 6.0 2500 273 19 201 17| 4.0 1.2 5.2|127.0 0.0 127.0 50.8 0.69| 7.2 4.9 3000 273 20 204 18| 3.8 1.0 4.7|143.2 0.0 143.2 47.7 0.70| 6.6 4.6 4000 277 22 213 17| 3.6 0.7 4.3|185.6 0.0 185.6 46.4 0.74| 6.2 4.6 5000 285 24 225 16| 3.5 0.6 4.1|228.5 0.0 228.5 45.7 0.79| 6.0 4.7 6000 294 28 247 15| 5.2 0.5 5.7|313.6 0.0 313.6 52.3 0.68| 7.3 5.0 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20250425.12.gif