UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120712.upa.cvt Date: 1200Z 7 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 7 DEC 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 128 1 925 683 240 1 SFC 918 737 -32.5 -34.8 80 2.3 -32.6 240 1 246.6 246.6 246.1 247.2 0.22 3 889 966 -26.5 -29.9 73 3.4 -26.8 227 7 255.1 255.1 253.9 256.1 0.36 4 850 1295 -20.7 -24.2 73 3.5 -21.2 210 15 264.5 264.6 261.9 266.3 0.63 5 840 1383 -19.1 -22.7 73 3.6 -19.7 209 16 267.0 267.2 264.0 269.1 0.73 6 700 2712 -29.5 -32.8 73 3.3 -29.8 200 25 269.8 269.9 265.2 270.9 0.35 7 695 2763 -29.9 -33.2 73 3.3 -30.2 200 25 269.9 270.0 265.3 270.9 0.33 8 658 3153 -29.1 -32.6 72 3.5 -29.5 201 24 275.1 275.1 268.8 276.2 0.38 9 500 5070 -39.9 -43.4 69 3.5 -40.1 205 21 284.4 284.4 274.0 284.9 0.16 10 468 5516 -43.1 -46.6 68 3.5 -43.2 201 22 285.8 285.9 274.7 286.3 0.12 11 409 6413 -45.5 -49.0 68 3.5 -45.6 191 23 294.0 294.0 278.8 294.4 0.11 12 400 6560 -46.1 -49.5 68 3.4 -46.2 190 23 295.1 295.1 279.3 295.4 0.10 13 375 6986 -49.5 -53.2 65 3.7 -49.6 191 23 296.1 296.1 279.7 296.3 0.07 14 336 7702 -51.7 -55.1 67 3.4 -51.8 193 24 302.5 302.5 282.5 302.7 0.06 15 300 8430 -56.1 -59.6 65 3.5 -56.2 195 25 306.3 306.3 284.0 306.4 0.04 16 293 8581 -57.5 -61.1 63 3.6 -57.6 195 27 306.4 306.4 284.0 306.5 0.03 17 291 8625 -57.5 -61.1 63 3.6 -57.6 195 27 307.0 307.0 284.2 307.1 0.04 18 250 9600 -54.3 -58.2 62 3.9 -54.4 200 23 325.3 325.4 290.5 325.6 0.06 19 220 10423 -51.5 -55.2 64 3.7 -51.6 197 24 341.8 341.8 294.8 342.2 0.10 20 200 11040 -51.7 -55.5 64 3.8 -51.8 195 25 350.9 350.9 296.9 351.3 0.10 21 150 12910 -50.3 -54.3 63 4.0 -50.5 205 29 383.4 383.4 302.9 384.1 0.16 22 100 15540 -51.1 -54.9 64 3.8 -51.4 200 35 429.0 429.1 308.9 430.1 0.22 23 83 16752 -54.1 -58.2 61 4.1 -54.4 197 34 446.4 446.4 310.6 447.3 0.18 24 73 17586 -50.9 -54.9 62 4.0 -51.3 196 33 469.8 469.9 312.8 471.6 0.30 25 70 17860 -52.1 -56.2 61 4.1 -52.5 195 33 472.9 473.0 313.0 474.5 0.27 26 56 19286 -56.3 -60.1 62 3.8 -56.6 208 42 494.5 494.6 314.7 495.8 0.21 27 50 20010 -52.3 -56.5 60 4.2 -52.8 215 46 520.2 520.3 316.5 522.5 0.37 28 47 20411 -50.5 -54.6 62 4.1 -51.1 215 49 533.8 534.0 317.3 537.0 0.49 29 40 21447 -56.7 -60.7 60 4.0 -57.1 215 56 543.5 543.6 317.8 545.3 0.27 30 30 23280 -53.9 -58.2 59 4.3 -54.6 215 69 597.7 597.9 320.7 601.3 0.49 31 26 24204 -51.1 -55.2 62 4.1 -52.1 630.6 630.9 322.2 637.0 0.82 32 22 25283 -54.1 -58.4 59 4.3 -55.0 652.5 652.8 323.0 657.8 0.66 33 20 25900 -49.9 -54.2 60 4.3 -51.2 683.4 683.9 324.2 693.5 1.21 34 18 26593 -47.5 -52.0 60 4.5 -49.2 711.9 712.7 325.3 727.0 1.74 TRP 293 8581 -57.5 -61.1 63 3.6 -57.6 195 27 306.4 306.4 284.0 306.5 0.03 WND Sounding variables and indices 1000-500 mb thick: 4942.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 71.98 % Est. max temperature: -11.18 C = 11.88 F Sfc-Lift cond lev (LCL): 882.74 mb = 1018.12 m = 3340.24 ft T: -25.59 C 700-500 lapse rate: 4.41 C/km ThetaE index: 0.00 C Layer 918.0- -0.0 mb Conv cond level (CCL): 918.00 mb = 736.68 m = 2416.90 ft Mean mixing ratio: 0.50 g/kg Conv temperature: -25.90 C = -14.61 F Cap Strength: 12.83 C Lifted Index: 19.20 C Risk: None Lifted Index @300 mb: 32.06 C Lifted Index @700 mb: 8.45 C Showalter Index: 14.98 C Risk: None Total Totals Index: 34.90 C Risk: None Vertical Totals Index: 19.20 C Cross Totals Index: 15.70 C K Index: -8.30 Risk: None Sweat Index: 51.00 Risk: None Energy Index: 3.92 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 78.90 J/kg Max Up Vert Vel: 12.56 m/s Conv Inhibition (B-): 65203.32 J/kg Cap Strength: 19.21 C Lift Cond Lev (LCL): 830.08 mb = 1469.41 m = 4820.85 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 231 at 16 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 ---------------------------------------------------------- 0 918 737 240 1 0.9 0.5 | 51 15 -11.2 -9.2 1 850 1295 210 15 7.5 13.0 | 125 6 -4.6 3.2 2 700 2712 200 25 8.6 23.5 | 166 14 -3.5 13.7 3 500 5070 205 21 8.9 19.0 | 161 10 -3.2 9.3 4 400 6560 190 23 4.0 22.7 | 148 15 -8.1 12.9 5 300 8430 195 25 6.5 24.1 | 159 15 -5.6 14.4 6 293 8581 195 27 7.0 26.1 | 163 17 -5.1 16.3 7 250 9600 200 23 7.9 21.6 | 160 13 -4.2 11.9 8 200 11040 195 25 6.5 24.1 | 159 15 -5.6 14.4 9 150 12910 205 29 12.3 26.3 | 181 17 0.2 16.5 10 100 15540 200 35 12.0 32.9 | 180 23 -0.1 23.1 11 70 17860 195 33 8.5 31.9 | 171 22 -3.6 22.1 12 50 20010 215 46 26.4 37.7 | 207 31 14.3 27.9 13 30 23280 215 69 39.6 56.5 | 210 54 27.5 46.8 Wind Parameters Mean winds (0-6000m): 201.1 at 20.7 knts Storm direction: 231.1 at 15.5 knts Shear (0-3000m) pos: 0.3 neg: 4.1 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 113.8 deg Storm rel helicity (0-3000m) pos: 24.4 neg: -1.3 tot: 23.1 m^2/s^2 ave: 7.7 10^-3 m/s^2 rel: 0.47 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 2.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 3.19 Bulk Shear: 24.70 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 ------------------------------------------------------------------------------- 500 212 7 66 9| 0.0 13.0 13.0| 10.3 -0.3 9.9 19.8 0.47| 13.5 6.3 1000 210 12 93 6| 0.0 8.9 8.9| 16.7 -0.3 16.4 16.4 0.57| 9.3 5.3 1500 207 14 119 6| 0.0 7.2 7.2| 21.2 -0.3 20.8 13.9 0.56| 7.5 4.2 2000 205 17 137 7| 0.0 6.2 6.2| 24.4 -0.3 24.0 12.0 0.52| 6.5 3.4 2500 204 18 145 8| 0.2 5.0 5.2| 24.4 -0.8 23.6 9.4 0.50| 5.4 2.7 3000 203 19 150 9| 0.3 4.1 4.5| 24.4 -1.3 23.1 7.7 0.47| 4.7 2.2 4000 203 20 154 10| 0.5 3.1 3.6| 24.4 -2.7 21.7 5.4 0.43| 3.8 1.6 5000 203 20 155 10| 0.4 2.5 2.9| 24.4 -6.6 17.7 3.5 0.34| 3.3 1.1 6000 201 21 154 11| 0.3 2.3 2.6| 25.2 -12.4 12.9 2.1 0.27| 3.1 0.8 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251207.12.gif