UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026011612.upa.cvt Date: 1200Z 16 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 16 JAN 26 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 307 SFC 941 741 -31.7 -34.2 78 2.5 -31.9 250 1 245.7 245.7 245.3 246.3 0.22 2 925 864 -30.1 -33.9 69 3.8 -30.3 215 3 248.5 248.6 247.9 249.2 0.24 3 897 1083 -29.7 -33.5 69 3.8 -30.0 190 7 251.1 251.2 250.2 251.8 0.25 4 850 1474 -21.7 -25.1 74 3.4 -22.1 145 15 263.4 263.5 261.0 265.1 0.59 5 802 1909 -13.9 -17.2 76 3.3 -14.6 146 16 276.1 276.3 270.9 279.7 1.24 6 793 1995 -13.1 -16.3 77 3.2 -13.9 147 16 277.9 278.1 272.2 281.8 1.35 7 764 2278 -13.5 -24.5 39 11.0 -15.6 148 17 280.4 280.5 272.6 282.5 0.69 8 739 2531 -15.5 -34.5 18 19.0 -18.0 149 18 280.9 281.0 272.2 281.8 0.28 9 700 2938 -17.9 -39.9 13 22.0 -20.3 150 19 282.7 282.7 273.0 283.2 0.17 10 543 4801 -26.7 -50.7 8 24.0 -28.3 173 41 293.5 293.5 278.5 293.7 0.07 11 500 5390 -31.3 -53.3 10 22.0 -32.5 180 48 294.9 294.9 279.1 295.1 0.05 12 449 6143 -38.3 -58.3 10 20.0 -39.0 182 42 295.3 295.3 279.3 295.4 0.03 13 400 6930 -44.3 -61.3 13 17.0 -44.7 185 36 297.4 297.4 280.2 297.5 0.02 14 300 8790 -58.5 -71.5 17 13.0 -58.6 180 27 302.9 302.9 282.5 302.9 0.01 15 265 9564 -64.9 -76.9 18 12.0 -65.0 177 30 304.5 304.5 283.2 304.5 0.00 16 250 9920 -66.7 -78.7 17 12.0 -66.7 175 31 306.9 306.9 284.1 306.9 0.00 17 240 10165 -69.7 -80.7 19 11.0 -69.7 175 33 306.0 306.0 283.8 306.0 0.00 18 239 10190 -69.5 -80.5 19 11.0 -69.5 175 33 306.7 306.7 284.1 306.7 0.00 19 224 10583 -61.9 -73.9 19 12.0 -62.0 177 27 324.1 324.1 290.0 324.1 0.01 20 200 11280 -64.5 -75.5 21 11.0 -64.6 180 17 330.6 330.6 291.9 330.6 0.01 21 168 12351 -64.3 -74.3 24 10.0 -64.4 195 12 347.9 347.9 296.1 347.9 0.01 22 155 12852 -58.1 -69.1 23 11.0 -58.3 202 10 366.5 366.5 299.9 366.6 0.02 23 150 13060 -57.5 -68.5 23 11.0 -57.7 205 9 371.0 371.0 300.8 371.1 0.03 24 100 15660 -50.5 -64.5 18 14.0 -51.2 215 15 430.2 430.2 308.9 430.5 0.07 25 70 17990 -47.5 -66.5 10 19.0 -49.0 235 19 482.8 482.8 313.7 483.2 0.07 26 56 19464 -47.1 -69.1 6 22.0 -49.0 222 15 515.5 515.5 316.0 515.9 0.06 27 50 20210 -48.9 -70.9 6 22.0 -50.7 215 13 528.2 528.3 316.8 528.6 0.05 28 40 21672 -51.9 -74.9 5 23.0 -53.5 208 20 555.5 555.5 318.4 555.8 0.04 29 30 23560 -47.5 -73.5 3 26.0 -50.6 200 29 615.1 615.2 321.3 615.6 0.06 30 23 25292 -53.3 -77.3 4 24.0 -55.6 197 34 646.7 646.7 322.6 647.0 0.04 31 23 25292 -50.5 -75.5 4 25.0 -53.4 197 34 654.9 654.9 322.9 655.4 0.06 32 20 26200 -52.1 -77.1 3 25.0 -54.9 195 36 676.7 676.7 323.7 677.1 0.05 33 14 28513 -51.5 -76.5 3 25.0 -55.3 751.4 751.4 326.0 752.2 0.08 34 12 29523 -47.3 -73.3 4 26.0 -53.1 800.2 800.2 327.3 801.7 0.16 35 11 30097 -48.5 -73.5 4 25.0 -54.1 816.0 816.0 327.7 817.6 0.17 TRP 240 10165 -69.7 -80.7 19 11.0 -69.7 175 33 306.0 306.0 283.8 306.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5083.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 31.41 % Est. max temperature: 0.11 C = 32.20 F Sfc-Lift cond lev (LCL): 901.84 mb = 1044.92 m = 3428.16 ft T: -29.77 C 700-500 lapse rate: 5.46 C/km ThetaE index: 0.70 C Layer 739.0- 700.0 mb Conv cond level (CCL): 941.00 mb = 741.20 m = 2431.72 ft Mean mixing ratio: 0.36 g/kg Conv temperature: -29.21 C = -20.58 F Cap Strength: 32.05 C Lifted Index: 32.43 C Risk: None Lifted Index @300 mb: 33.65 C Lifted Index @700 mb: 24.97 C Showalter Index: 24.55 C Risk: None Total Totals Index: 15.80 C Risk: None Vertical Totals Index: 9.60 C Cross Totals Index: 6.20 C K Index: -37.50 Risk: None Sweat Index: 78.00 Risk: None Energy Index: 6.51 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 74.58 J/kg Max Up Vert Vel: 12.21 m/s Conv Inhibition (B-): 68099.95 J/kg Cap Strength: 32.44 C Lift Cond Lev (LCL): 850.64 mb = 1468.55 m = 4818.00 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 202 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 ---------------------------------------------------------- 0 941 741 250 1 0.9 0.3 | 19 21 -6.9 -19.6 1 925 864 215 3 1.7 2.5 | 19 19 -6.2 -17.5 2 850 1474 145 15 -8.6 12.3 | 65 18 -16.5 -7.7 3 700 2938 150 19 -9.5 16.5 | 79 18 -17.4 -3.5 4 500 5390 180 48 0.0 48.0 | 164 29 -7.9 28.0 5 400 6930 185 36 3.1 35.9 | 163 17 -4.7 15.9 6 300 8790 180 27 0.0 27.0 | 132 11 -7.9 7.0 7 250 9920 175 31 -2.7 30.9 | 136 15 -10.6 10.9 8 240 10165 175 33 -2.9 32.9 | 140 17 -10.8 12.9 9 200 11280 180 17 0.0 17.0 | 69 8 -7.9 -3.0 10 150 13060 205 9 3.8 8.2 | 19 12 -4.1 -11.8 11 100 15660 215 15 8.6 12.3 | 355 8 0.7 -7.7 12 70 17990 235 19 15.6 10.9 | 320 12 7.7 -9.1 13 50 20210 215 13 7.5 10.6 | 3 9 -0.4 -9.3 14 30 23560 200 29 9.9 27.3 | 196 8 2.0 7.3 15 20 26200 195 36 9.3 34.8 | 186 15 1.4 14.8 Wind Parameters Mean winds (0-6000m): 171.5 at 28.6 knts Storm direction: 201.5 at 21.5 knts Shear (0-3000m) pos: 2.4 neg: 2.7 tot: 5.1 10-3/s Storm rel Dir Shear (0-3000m): 91.5 deg Storm rel helicity (0-3000m) pos: 115.6 neg: -1.2 tot: 114.4 m^2/s^2 ave: 38.1 10^-3 m/s^2 rel: 0.78 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 4.5 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 1.04 Bulk Shear: 71.56 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 ------------------------------------------------------------------------------- 500 185 6 27 16| 0.0 10.6 10.6| 24.6 -1.2 23.5 46.9 0.55| 11.7 6.4 1000 152 10 47 17| 0.0 8.2 8.2| 50.0 -1.2 48.8 48.8 0.64| 10.0 6.4 1500 150 12 55 17| 0.5 5.5 6.0| 56.8 -1.2 55.6 37.1 0.66| 7.2 4.8 2000 149 13 60 17| 0.7 4.1 4.9| 63.7 -1.2 62.5 31.3 0.68| 5.8 3.9 2500 150 15 64 17| 1.5 3.3 4.8| 84.4 -1.2 83.2 33.3 0.74| 5.5 4.1 3000 152 16 70 17| 2.4 2.7 5.1|115.6 -1.2 114.4 38.1 0.78| 5.7 4.5 4000 159 21 88 15| 3.5 2.1 5.5|188.1 -1.2 186.9 46.7 0.83| 6.1 5.0 5000 168 26 111 14| 3.5 1.6 5.1|248.1 -1.2 246.9 49.4 0.80| 6.1 4.9 6000 172 29 125 15| 2.3 1.4 3.7|248.3 -2.5 245.8 41.0 0.70| 5.8 4.1 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260116.12.gif