UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042412.upa.cvt Date: 1200Z 24 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 24 APR 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1001 112 3.4 -7.6 44 11.0 -0.5 170 1 276.5 276.8 272.6 282.5 2.15 1 1000 120 3.2 -7.8 44 11.0 -0.7 170 1 276.4 276.7 272.5 282.3 2.12 2 992 185 3.0 -8.0 44 11.0 -0.9 173 2 276.8 277.1 272.7 282.7 2.10 3 925 747 -1.5 -13.5 39 12.0 -5.0 195 7 277.8 278.0 272.3 282.0 1.46 4 850 1412 -7.7 -15.7 53 8.0 -9.8 210 3 278.1 278.3 272.2 281.9 1.32 5 847 1439 -7.9 -15.9 53 8.0 -9.9 210 3 278.2 278.4 272.3 281.9 1.30 6 829 1606 -8.7 -17.7 48 9.0 -10.9 213 3 279.0 279.2 272.5 282.4 1.15 7 771 2165 -11.5 -29.5 21 18.0 -14.6 223 3 281.9 281.9 273.0 283.2 0.43 8 740 2479 -11.5 -30.5 19 19.0 -14.7 228 3 285.2 285.3 274.8 286.5 0.41 9 700 2903 -14.1 -34.1 17 20.0 -17.0 235 3 286.9 286.9 275.5 287.9 0.30 10 602 4030 -21.7 -34.7 30 13.0 -23.4 289 2 290.7 290.8 277.6 291.8 0.33 11 500 5370 -31.3 -42.3 33 11.0 -32.1 355 1 294.9 294.9 279.3 295.5 0.18 12 400 6920 -41.5 -48.5 47 7.0 -41.8 345 13 301.1 301.1 282.0 301.5 0.12 13 312 8557 -53.9 -59.9 48 6.0 -54.0 45 13 305.9 305.9 283.8 306.1 0.04 14 306 8682 -52.7 -58.7 48 6.0 -52.8 35 12 309.3 309.3 285.1 309.5 0.05 15 300 8810 -51.9 -57.9 48 6.0 -52.0 25 11 312.2 312.2 286.2 312.4 0.05 16 295 8918 -52.3 -58.3 48 6.0 -52.4 21 10 313.1 313.1 286.5 313.3 0.05 17 250 9990 -50.5 -57.5 43 7.0 -50.7 340 5 331.0 331.0 292.0 331.2 0.06 18 200 11450 -50.5 -60.5 30 10.0 -50.8 125 5 352.8 352.8 297.3 353.0 0.06 19 150 13330 -50.1 -65.1 15 15.0 -50.7 185 15 383.7 383.8 302.9 383.9 0.04 20 113 15180 -47.9 -65.9 11 18.0 -48.8 140 9 420.2 420.2 307.7 420.5 0.05 21 100 15980 -49.3 -68.3 9 19.0 -50.2 120 7 432.5 432.5 309.1 432.7 0.04 22 79 17521 -50.5 -71.5 7 21.0 -51.5 176 10 460.2 460.2 311.8 460.3 0.03 23 70 18310 -50.1 -71.1 7 21.0 -51.3 205 11 477.2 477.2 313.2 477.4 0.04 24 53 20129 -51.1 -73.1 6 22.0 -52.5 114 3 514.4 514.4 315.9 514.6 0.04 25 50 20510 -50.1 -73.1 5 23.0 -51.7 95 1 525.4 525.4 316.6 525.7 0.04 26 30 23830 -51.3 -75.3 4 24.0 -53.5 125 9 604.8 604.8 320.9 605.1 0.05 27 21 26142 -50.3 -75.3 4 25.0 -53.5 107 4 672.8 672.8 323.6 673.3 0.07 28 20 26460 -49.9 -74.9 4 25.0 -53.3 105 3 683.4 683.5 323.9 684.1 0.07 29 15 28350 -47.7 -73.7 3 26.0 -52.6 749.4 749.4 326.0 750.4 0.12 30 12 29834 -44.5 -71.5 3 27.0 -51.4 810.1 810.2 327.5 812.1 0.21 TRP 312 8557 -53.9 -59.9 48 6.0 -54.0 45 13 305.9 305.9 283.8 306.1 0.04 WND Sounding variables and indices 1000-500 mb thick: 5250.00 m Freezing level: 947.33 mb = 559.70 m = 1836.26 ft Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 31.93 % Est. max temperature: 5.01 C = 41.01 F Sfc-Lift cond lev (LCL): 843.63 mb = 1470.42 m = 4824.17 ft T: -8.05 C 700-500 lapse rate: 6.97 C/km ThetaE index: 0.80 C Layer 925.0- 847.0 mb Conv cond level (CCL): 686.12 mb = 3052.58 m = 10014.92 ft Mean mixing ratio: 1.72 g/kg Conv temperature: 14.33 C = 57.79 F Cap Strength: 8.69 C Lifted Index: 10.87 C Risk: None Lifted Index @300 mb: 21.21 C Lifted Index @700 mb: 6.89 C Showalter Index: 11.10 C Risk: None Total Totals Index: 39.20 C Risk: None Vertical Totals Index: 23.60 C Cross Totals Index: 15.60 C K Index: -12.10 Risk: None Sweat Index: 7.00 Risk: None Energy Index: 2.89 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.67 J/kg Max Up Vert Vel: 2.71 m/s Conv Inhibition (B-): 65854.03 J/kg Cap Strength: 10.70 C Lift Cond Lev (LCL): 796.07 mb = 1918.37 m = 6293.80 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 262 at 2 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 1001 112 170 1 -0.2 1.0 | 105 2 -2.4 0.7 1 1000 120 170 1 -0.2 1.0 | 105 2 -2.4 0.7 2 925 747 195 7 1.8 6.8 | 176 6 -0.4 6.4 3 850 1412 210 3 1.5 2.6 | 162 2 -0.7 2.3 4 700 2903 235 3 2.5 1.7 | 190 1 0.2 1.4 5 500 5370 355 1 0.1 -1.0 | 58 3 -2.1 -1.3 6 400 6920 345 13 3.4 -12.6 | 355 13 1.1 -12.9 7 312 8557 45 13 -9.2 -9.2 | 50 15 -11.4 -9.5 8 300 8810 25 11 -4.6 -10.0 | 34 12 -6.9 -10.3 9 250 9990 340 5 1.7 -4.7 | 6 5 -0.5 -5.0 10 200 11450 125 5 -4.1 2.9 | 112 7 -6.3 2.5 11 150 13330 185 15 1.3 14.9 | 176 15 -0.9 14.6 12 100 15980 120 7 -6.1 3.5 | 111 9 -8.3 3.2 13 70 18310 205 11 4.6 10.0 | 194 10 2.4 9.6 14 50 20510 95 1 -1.0 0.1 | 86 3 -3.2 -0.2 15 30 23830 125 9 -7.4 5.2 | 117 11 -9.6 4.8 16 20 26460 105 3 -2.9 0.8 | 95 5 -5.1 0.4 Wind Parameters Mean winds (0-6000m): 231.6 at 3.0 knts Storm direction: 261.6 at 2.2 knts Shear (0-3000m) pos: 0.5 neg: 0.0 tot: 0.5 10-3/s Storm rel Dir Shear (0-3000m): 96.7 deg Storm rel helicity (0-3000m) pos: 6.0 neg: -0.7 tot: 5.3 m^2/s^2 ave: 1.8 10^-3 m/s^2 rel: 0.44 Storm rel vorticity (0-3000m) horiz: 2.0 stream: 0.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 4.70 Bulk Shear: 0.78 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 ------------------------------------------------------------------------------- 500 187 3 148 3| 4.9 0.0 4.9| 3.8 0.0 3.8 7.6 0.79| 5.0 3.9 1000 195 5 166 4| 2.1 0.0 2.1| 5.4 -0.1 5.3 5.3 0.58| 4.2 2.5 1500 198 4 166 4| 0.8 0.0 0.8| 5.5 -0.7 4.8 3.2 0.41| 3.5 1.4 2000 201 4 167 3| 0.6 0.0 0.6| 5.7 -0.7 5.0 2.5 0.42| 2.7 1.2 2500 205 4 169 3| 0.5 0.0 0.5| 5.8 -0.7 5.1 2.0 0.43| 2.3 1.0 3000 209 4 171 3| 0.5 0.0 0.5| 6.0 -0.7 5.3 1.8 0.44| 2.0 0.9 4000 218 3 175 2| 0.3 0.0 0.3| 6.2 -0.7 5.5 1.4 0.47| 1.8 0.9 5000 220 3 171 2| 0.2 0.0 0.2| 6.7 -0.7 6.0 1.2 0.49| 1.6 0.8 6000 232 3 185 2| 0.3 0.3 0.7| 6.8 -4.4 2.4 0.4 0.22| 1.9 0.4 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250424.12.gif