UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041912.upa.cvt Date: 1200Z 19 APR 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 19 APR 25 Station: U4688 WMO ident: 24688 Latitude: 63.27 Longitude: 143.15 ------------------------------------------------------------------------------- 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 155 SFC 928 740 -7.5 -12.4 68 4.9 -8.8 270 1 271.4 271.7 268.5 275.8 1.59 2 925 765 -7.5 -11.3 74 3.8 -8.5 270 1 271.6 271.9 269.0 276.5 1.74 3 920 807 -7.5 -10.4 80 2.9 -8.4 270 1 272.1 272.4 269.5 277.3 1.88 4 897 1007 -3.1 -10.1 58 7.0 -5.3 270 2 278.6 278.9 273.6 284.2 1.97 5 850 1433 -5.9 -14.9 49 9.0 -8.4 270 3 280.0 280.2 273.5 284.1 1.41 6 814 1770 -8.3 -16.3 52 8.0 -10.4 286 3 280.9 281.1 273.9 284.8 1.31 7 770 2203 -6.3 -13.3 58 7.0 -8.4 306 4 287.6 287.9 278.1 292.9 1.78 8 726 2663 -6.3 -18.3 38 12.0 -9.6 327 5 292.4 292.7 279.7 296.3 1.24 9 700 2947 -8.5 -23.5 29 15.0 -12.0 340 5 293.1 293.2 279.4 295.7 0.82 10 591 4237 -17.1 -36.1 18 19.0 -19.8 340 15 297.6 297.7 280.7 298.6 0.30 11 516 5234 -27.1 -46.1 15 19.0 -28.6 340 23 297.3 297.3 280.3 297.7 0.12 12 509 5332 -27.5 -47.5 13 20.0 -29.0 340 24 298.0 298.0 280.6 298.4 0.10 13 500 5460 -28.5 -47.5 14 19.0 -29.9 340 25 298.3 298.3 280.7 298.7 0.10 14 423 6630 -37.3 -53.3 17 16.0 -38.0 336 25 301.6 301.7 282.1 301.9 0.06 15 402 6976 -41.7 -57.7 16 16.0 -42.2 335 25 300.4 300.4 281.5 300.5 0.04 16 400 7010 -41.7 -56.7 18 15.0 -42.2 335 25 300.8 300.8 281.7 301.0 0.04 17 309 8711 -54.9 -67.9 19 13.0 -55.1 339 42 305.4 305.4 283.5 305.4 0.01 18 300 8900 -55.1 -68.1 18 13.0 -55.2 340 44 307.7 307.7 284.5 307.7 0.01 19 254 9960 -58.9 -70.9 20 12.0 -59.0 325 52 317.1 317.1 287.8 317.1 0.01 20 250 10060 -58.5 -70.5 20 12.0 -58.6 325 52 319.1 319.1 288.5 319.1 0.01 21 203 11384 -51.1 -63.1 23 12.0 -51.4 320 32 350.4 350.4 296.7 350.5 0.04 22 200 11480 -51.5 -63.5 23 12.0 -51.8 320 31 351.2 351.2 296.9 351.4 0.04 23 150 13340 -51.3 -64.3 20 13.0 -51.7 310 19 381.7 381.7 302.5 381.9 0.04 24 100 15970 -53.1 -68.1 15 15.0 -53.7 295 15 425.1 425.1 308.3 425.3 0.04 25 77 17662 -51.1 -67.1 13 16.0 -52.0 291 11 462.3 462.3 312.0 462.6 0.06 26 70 18280 -52.1 -68.1 13 16.0 -53.0 290 9 472.9 472.9 312.9 473.3 0.06 27 50 20450 -53.1 -70.1 11 17.0 -54.2 265 9 518.3 518.4 316.2 518.7 0.06 28 31 23529 -54.5 -71.5 11 17.0 -55.9 288 5 590.5 590.5 320.2 591.1 0.08 29 30 23740 -54.1 -71.1 11 17.0 -55.6 290 5 597.2 597.2 320.5 597.8 0.09 30 20 26350 -51.3 -69.3 10 18.0 -54.1 20 5 679.1 679.2 323.8 680.6 0.17 31 18 27035 -51.7 -69.7 10 18.0 -54.6 24 5 698.7 698.7 324.4 700.2 0.18 32 18 27035 -51.5 -69.5 10 18.0 -54.5 24 5 699.3 699.4 324.4 700.9 0.18 33 10 30880 -48.5 -68.5 8 20.0 -54.1 45 5 838.5 838.7 328.2 842.5 0.38 34 8.3 32109 -47.5 -71.5 5 24.0 -54.4 888.3 888.5 329.2 891.6 0.30 TRP 254 9960 -58.9 -70.9 20 12.0 -59.0 325 52 317.1 317.1 287.8 317.1 0.01 WND Sounding variables and indices 1000-500 mb thick: 5305.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.18 inches Sfc-500 mean rel hum: 34.12 % Est. max temperature: 7.11 C = 44.80 F Sfc-Lift cond lev (LCL): 858.15 mb = 1357.54 m = 4453.81 ft T: -5.40 C 700-500 lapse rate: 7.96 C/km ThetaE index: 0.62 C Layer 700.0- 591.0 mb Conv cond level (CCL): 589.90 mb = 4250.27 m = 13944.29 ft Mean mixing ratio: 1.68 g/kg Conv temperature: 18.17 C = 64.71 F Cap Strength: 13.99 C Lifted Index: 13.20 C Risk: None Lifted Index @300 mb: 17.60 C Lifted Index @700 mb: 12.05 C Showalter Index: 12.23 C Risk: None Total Totals Index: 36.20 C Risk: None Vertical Totals Index: 22.60 C Cross Totals Index: 13.60 C K Index: -7.30 Risk: None Sweat Index: 31.00 Risk: None Energy Index: 3.19 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 34.92 J/kg Max Up Vert Vel: 8.36 m/s Conv Inhibition (B-): 68158.95 J/kg Cap Strength: 13.94 C Lift Cond Lev (LCL): 783.74 mb = 2065.35 m = 6776.00 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 7 at 10 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 ---------------------------------------------------------- 0 928 740 270 1 1.0 -0.0 | 192 10 2.1 9.8 1 925 765 270 1 1.0 -0.0 | 192 10 2.1 9.8 2 850 1433 270 3 3.0 -0.0 | 203 11 4.1 9.8 3 700 2947 340 5 1.7 -4.7 | 209 6 2.9 5.1 4 500 5460 340 25 8.6 -23.5 | 325 17 9.7 -13.7 5 400 7010 335 25 10.6 -22.7 | 318 17 11.7 -12.9 6 300 8900 340 44 15.0 -41.3 | 333 35 16.2 -31.5 7 254 9960 325 52 29.8 -42.6 | 317 45 31.0 -32.8 8 250 10060 325 52 29.8 -42.6 | 317 45 31.0 -32.8 9 200 11480 320 31 19.9 -23.7 | 304 25 21.1 -13.9 10 150 13340 310 19 14.6 -12.2 | 279 16 15.7 -2.4 11 100 15970 295 15 13.6 -6.3 | 257 15 14.7 3.5 12 70 18280 290 9 8.5 -3.1 | 235 12 9.6 6.7 13 50 20450 265 9 9.0 0.8 | 224 15 10.1 10.6 14 30 23740 290 5 4.7 -1.7 | 216 10 5.8 8.1 15 20 26350 20 5 -1.7 -4.7 | 174 5 -0.6 5.1 16 10 30880 45 5 -3.5 -3.5 | 159 7 -2.4 6.3 Wind Parameters Mean winds (0-6000m): 336.6 at 13.2 knts Storm direction: 6.6 at 9.9 knts Shear (0-3000m) pos: 1.2 neg: 0.8 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 87.1 deg Storm rel helicity (0-3000m) pos: 16.4 neg: -0.5 tot: 15.9 m^2/s^2 ave: 5.3 10^-3 m/s^2 rel: 0.66 Storm rel vorticity (0-3000m) horiz: 2.3 stream: 1.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.67 Bulk Shear: 20.95 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 ------------------------------------------------------------------------------- 500 270 2 196 10| 0.0 1.5 1.5| 3.7 0.0 3.7 7.4 0.96| 1.5 1.4 1000 273 2 200 10| 0.6 0.7 1.4| 6.9 0.0 6.9 6.9 0.88| 1.5 1.3 1500 284 3 203 10| 0.9 0.5 1.4| 8.7 0.0 8.7 5.8 0.72| 1.6 1.1 2000 299 3 206 9| 1.1 0.4 1.4| 9.0 -0.1 8.9 4.5 0.52| 1.7 0.9 2500 313 4 208 8| 1.4 0.3 1.7| 11.8 -0.5 11.3 4.5 0.53| 2.0 1.1 3000 323 5 212 7| 1.2 0.8 2.0| 16.4 -0.5 15.9 5.3 0.66| 2.3 1.5 4000 333 7 233 6| 0.9 1.6 2.5| 25.7 -0.5 25.2 6.3 0.63| 2.8 1.8 5000 336 11 268 5| 0.7 1.9 2.6| 32.2 -2.0 30.3 6.1 0.55| 2.8 1.6 6000 337 13 290 7| 0.6 1.6 2.2| 32.2 -8.1 24.2 4.0 0.47| 2.5 1.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250419.12.gif