UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 8 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 217 SFC 927 741 -39.5 -42.3 75 2.8 -39.6 190 1 238.8 238.8 238.5 239.0 0.10 2 925 756 -39.7 -43.2 69 3.5 -39.8 200 3 238.7 238.7 238.4 239.0 0.09 3 850 1352 -28.5 -32.5 68 4.0 -28.8 330 7 256.3 256.3 254.7 257.1 0.29 4 811 1690 -23.1 -27.2 69 4.1 -23.6 297 9 265.5 265.6 262.4 266.9 0.51 5 749 2264 -26.7 -30.2 72 3.5 -27.1 242 12 267.7 267.8 263.9 268.9 0.41 6 728 2469 -24.9 -28.7 71 3.8 -25.4 222 13 271.8 271.9 266.9 273.3 0.49 7 700 2752 -25.5 -29.2 71 3.7 -25.9 195 15 274.2 274.3 268.5 275.7 0.49 8 500 5160 -33.9 -37.4 71 3.5 -34.2 205 33 291.7 291.8 278.0 292.7 0.31 9 466 5650 -35.7 -39.1 71 3.4 -36.0 205 34 295.4 295.5 279.7 296.3 0.28 10 400 6700 -40.3 -43.7 70 3.4 -40.5 205 36 302.6 302.6 282.7 303.3 0.20 11 300 8630 -48.7 -52.0 68 3.3 -48.8 205 44 316.7 316.7 287.8 317.1 0.10 12 299 8652 -48.9 -52.2 68 3.3 -49.0 205 44 316.7 316.8 287.8 317.1 0.10 13 250 9810 -53.3 -56.6 67 3.3 -53.4 200 36 326.8 326.8 290.9 327.1 0.07 14 202 11167 -57.7 -60.9 67 3.2 -57.8 195 35 340.4 340.4 294.5 340.6 0.05 15 200 11230 -57.7 -60.9 67 3.2 -57.8 195 35 341.4 341.4 294.7 341.6 0.05 16 156 12794 -59.3 -62.7 65 3.4 -59.4 199 33 363.8 363.8 299.5 364.1 0.05 17 150 13040 -58.3 -61.6 66 3.3 -58.4 200 33 369.6 369.6 300.5 369.9 0.06 18 108 15127 -54.7 -58.1 66 3.4 -54.9 196 31 412.9 412.9 306.9 413.6 0.14 19 100 15620 -54.1 -57.5 66 3.4 -54.3 195 31 423.2 423.2 308.2 424.0 0.16 20 70 17920 -51.5 -54.7 68 3.2 -51.8 190 31 474.2 474.3 313.1 476.1 0.32 21 69 18013 -52.1 -55.3 68 3.2 -52.4 474.9 475.0 313.2 476.6 0.31 TRP 202 11167 -57.7 -60.9 67 3.2 -57.8 195 35 340.4 340.4 294.5 340.6 0.05 WND Sounding variables and indices 1000-500 mb thick: 4943.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.09 inches Sfc-500 mean rel hum: 70.41 % Est. max temperature: -12.19 C = 10.05 F Sfc-Lift cond lev (LCL): 882.80 mb = 1085.15 m = 3560.17 ft T: -33.51 C 700-500 lapse rate: 3.49 C/km ThetaE index: 0.08 C Layer 925.0- 850.0 mb Conv cond level (CCL): 927.00 mb = 741.08 m = 2431.33 ft Mean mixing ratio: 0.23 g/kg Conv temperature: -34.19 C = -29.54 F Cap Strength: 21.47 C Lifted Index: 33.64 C Risk: None Lifted Index @300 mb: 46.76 C Lifted Index @700 mb: 21.47 C Showalter Index: 28.42 C Risk: None Total Totals Index: 6.80 C Risk: None Vertical Totals Index: 5.40 C Cross Totals Index: 1.40 C K Index: -30.80 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 7.60 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 70.58 J/kg Max Up Vert Vel: 11.88 m/s Conv Inhibition (B-): 38513.49 J/kg Cap Strength: 33.56 C Lift Cond Lev (LCL): 840.85 mb = 1429.89 m = 4691.18 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 235 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 ---------------------------------------------------------- 0 927 741 190 1 0.2 1.0 | 58 16 -13.3 -8.4 1 925 756 200 3 1.0 2.8 | 62 14 -12.5 -6.5 2 850 1352 330 7 3.5 -6.1 | 33 18 -10.0 -15.4 3 700 2752 195 15 3.9 14.5 | 118 11 -9.6 5.1 4 500 5160 205 33 13.9 29.9 | 181 21 0.4 20.6 5 400 6700 205 36 15.2 32.6 | 184 23 1.7 23.3 6 300 8630 205 44 18.6 39.9 | 189 31 5.1 30.5 7 250 9810 200 36 12.3 33.8 | 177 25 -1.2 24.5 8 202 11167 195 35 9.1 33.8 | 170 25 -4.5 24.5 9 200 11230 195 35 9.1 33.8 | 170 25 -4.5 24.5 10 150 13040 200 33 11.3 31.0 | 174 22 -2.2 21.7 11 100 15620 195 31 8.0 29.9 | 165 21 -5.5 20.6 12 70 17920 190 31 5.4 30.5 | 159 23 -8.1 21.2 Wind Parameters Mean winds (0-6000m): 205.3 at 21.9 knts Storm direction: 235.3 at 16.4 knts Shear (0-3000m) pos: 1.4 neg: 3.1 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): 94.5 deg Storm rel helicity (0-3000m) pos: 35.3 neg: -37.5 tot: -2.3 m^2/s^2 ave: -0.8 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 8.2 stream: 1.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.22 Bulk Shear: 57.81 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 ------------------------------------------------------------------------------- 500 277 5 42 13| 6.9 0.0 6.9| 1.8 -20.4 -18.6 -37.2 -0.52| 10.9 -5.7 1000 307 6 34 16| 3.5 1.8 5.2| 1.8 -35.0 -33.2 -33.2 -0.47| 9.6 -4.6 1500 280 8 30 12| 2.3 3.6 6.0| 4.6 -37.5 -33.0 -22.0 -0.28| 9.7 -2.7 2000 234 9 57 7| 1.7 4.6 6.4| 13.3 -37.5 -24.3 -12.1 -0.03| 10.3 -0.3 2500 216 10 83 7| 1.3 3.7 5.0| 24.0 -37.5 -13.6 -5.4 0.06| 9.0 0.5 3000 209 12 99 8| 1.4 3.1 4.5| 35.3 -37.5 -2.3 -0.8 0.13| 8.2 1.0 4000 206 16 125 8| 1.9 2.3 4.3| 59.9 -37.5 22.3 5.6 0.22| 7.1 1.5 5000 205 19 146 9| 1.9 1.9 3.8| 73.8 -37.5 36.3 7.3 0.25| 6.1 1.5 6000 205 22 158 11| 1.6 1.8 3.4| 78.3 -37.5 40.7 6.8 0.25| 5.3 1.3 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251208.12.gif