UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042700.upa.cvt Date: 0000Z 27 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 27 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 1004 109 -1.7 -10.7 50 9.0 -4.4 85 1 271.1 271.4 268.5 275.8 1.68 1 1000 141 -1.7 -14.7 36 13.0 -5.2 85 1 271.5 271.7 268.0 274.9 1.22 2 985 261 -1.5 -16.5 31 15.0 -5.4 98 3 272.8 273.0 268.6 275.9 1.07 3 981 294 -1.3 -16.3 31 15.0 -5.3 101 3 273.3 273.5 269.0 276.5 1.09 4 925 759 -4.7 -18.7 33 14.0 -8.1 150 9 274.5 274.7 269.4 277.2 0.94 5 850 1416 -10.5 -20.5 44 10.0 -12.6 125 9 275.1 275.3 269.7 277.7 0.88 6 836 1543 -11.9 -20.9 47 9.0 -13.7 130 10 275.0 275.1 269.6 277.5 0.86 7 792 1957 -11.5 -17.5 61 6.0 -12.9 147 14 279.7 279.9 273.1 283.3 1.22 8 757 2303 -12.7 -16.5 73 3.8 -13.6 161 17 282.0 282.3 274.6 286.1 1.39 9 700 2896 -16.1 -20.1 71 4.0 -17.0 185 23 284.7 284.8 275.6 288.0 1.11 10 680 3114 -17.1 -21.2 70 4.1 -18.0 186 24 285.9 286.1 276.2 289.0 1.03 11 550 4671 -28.1 -33.1 62 5.0 -28.7 196 32 290.7 290.8 277.7 292.1 0.43 12 547 4710 -28.5 -33.5 62 5.0 -29.0 196 32 290.7 290.8 277.7 292.1 0.41 13 500 5350 -31.3 -45.3 24 14.0 -32.3 200 35 294.9 294.9 279.3 295.3 0.13 14 484 5579 -32.3 -48.3 19 16.0 -33.3 199 35 296.4 296.4 279.9 296.8 0.10 15 465 5859 -34.7 -52.7 14 18.0 -35.6 198 35 296.8 296.8 280.0 297.1 0.06 16 400 6890 -42.5 -56.5 20 14.0 -42.9 195 36 299.8 299.8 281.3 299.9 0.05 17 349 7799 -49.7 -59.7 30 10.0 -49.9 195 43 301.9 302.0 282.2 302.1 0.04 18 320 8364 -52.3 -62.3 29 10.0 -52.5 195 47 305.9 305.9 283.8 306.0 0.03 19 314 8486 -53.5 -63.5 28 10.0 -53.7 195 48 305.9 305.9 283.8 306.0 0.02 20 306 8652 -53.7 -63.7 28 10.0 -53.8 195 47 307.9 307.9 284.5 308.0 0.02 21 300 8780 -53.3 -63.3 29 10.0 -53.5 195 46 310.2 310.2 285.4 310.3 0.03 22 250 9960 -50.5 -62.5 23 12.0 -50.8 205 29 331.0 331.0 292.0 331.1 0.03 23 225 10647 -48.7 -62.7 18 14.0 -49.1 207 22 343.9 343.9 295.3 344.0 0.04 24 200 11420 -48.3 -64.3 14 16.0 -48.8 210 15 356.3 356.3 298.0 356.4 0.03 25 150 13310 -49.1 -70.1 7 21.0 -49.8 215 11 385.5 385.5 303.1 385.6 0.02 26 100 15980 -49.3 -74.3 4 25.0 -50.3 190 3 432.5 432.5 309.1 432.6 0.02 27 70 18310 -50.7 -74.7 4 24.0 -51.8 10 3 475.9 475.9 313.1 476.0 0.02 28 50 20490 -50.7 -74.7 4 24.0 -52.2 110 5 524.0 524.0 316.6 524.2 0.03 29 30 23820 -51.1 -75.1 4 24.0 -53.4 80 7 605.3 605.4 320.9 605.7 0.05 30 25 25009 -51.7 -75.7 4 24.0 -54.2 87 6 636.0 636.0 322.2 636.4 0.05 31 20 26470 -48.9 -73.9 4 25.0 -52.6 95 5 686.5 686.5 324.0 687.2 0.09 32 11 30414 -46.7 -72.7 4 26.0 -53.0 121 12 822.5 822.6 327.8 824.4 0.19 33 10 31050 -43.5 -69.5 4 26.0 -51.5 125 13 857.2 857.3 328.6 860.7 0.33 34 9.3 31540 -41.7 -68.7 4 27.0 -51.0 882.0 882.2 329.1 886.4 0.40 TRP 314 8486 -53.5 -63.5 28 10.0 -53.7 195 48 305.9 305.9 283.8 306.0 0.02 WND Sounding variables and indices 1000-500 mb thick: 5209.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.19 inches Sfc-500 mean rel hum: 55.34 % Est. max temperature: 2.28 C = 36.10 F Sfc-Lift cond lev (LCL): 871.34 mb = 1223.36 m = 4013.59 ft T: -8.80 C 700-500 lapse rate: 6.19 C/km ThetaE index: 0.91 C Layer 1000.0- 985.0 mb Conv cond level (CCL): 614.49 mb = 3857.11 m = 12654.41 ft Mean mixing ratio: 1.04 g/kg Conv temperature: 15.46 C = 59.82 F Cap Strength: 12.43 C Lifted Index: 15.26 C Risk: None Lifted Index @300 mb: 23.79 C Lifted Index @700 mb: 9.08 C Showalter Index: 14.41 C Risk: None Total Totals Index: 31.60 C Risk: None Vertical Totals Index: 20.80 C Cross Totals Index: 10.80 C K Index: -3.70 Risk: None Sweat Index: 53.00 Risk: None Energy Index: 3.74 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.12 J/kg Max Up Vert Vel: 4.50 m/s Conv Inhibition (B-): 74703.43 J/kg Cap Strength: 15.07 C Lift Cond Lev (LCL): 762.63 mb = 2246.23 m = 7369.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 218 at 17 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 1004 109 85 1 -1.0 -0.1 | 40 17 -11.2 -13.1 1 1000 141 85 1 -1.0 -0.1 | 40 17 -11.2 -13.1 2 925 759 150 9 -4.5 7.8 | 70 16 -14.7 -5.3 3 850 1416 125 9 -7.4 5.2 | 66 19 -17.5 -7.9 4 700 2896 185 23 2.0 22.9 | 140 13 -8.2 9.9 5 500 5350 200 35 12.0 32.9 | 185 20 1.8 19.8 6 400 6890 195 36 9.3 34.8 | 178 22 -0.9 21.7 7 314 8486 195 48 12.4 46.4 | 184 33 2.2 33.3 8 300 8780 195 46 11.9 44.4 | 183 31 1.7 31.4 9 250 9960 205 29 12.3 26.3 | 189 13 2.1 13.2 10 200 11420 210 15 7.5 13.0 | 89 3 -2.7 -0.1 11 150 13310 215 11 6.3 9.0 | 44 6 -3.9 -4.0 12 100 15980 190 3 0.5 3.0 | 44 14 -9.7 -10.1 13 70 18310 10 3 -0.5 -3.0 | 34 19 -10.7 -16.0 14 50 20490 110 5 -4.7 1.7 | 53 19 -14.9 -11.3 15 30 23820 80 7 -6.9 -1.2 | 50 22 -17.1 -14.3 16 20 26470 95 5 -5.0 0.4 | 50 20 -15.2 -12.6 17 10 31050 125 13 -10.6 7.5 | 75 22 -20.8 -5.6 Wind Parameters Mean winds (0-6000m): 187.9 at 22.1 knts Storm direction: 217.9 at 16.6 knts Shear (0-3000m) pos: 4.1 neg: 0.3 tot: 4.4 10-3/s Storm rel Dir Shear (0-3000m): 104.8 deg Storm rel helicity (0-3000m) pos: 136.4 neg: -6.2 tot: 130.3 m^2/s^2 ave: 43.4 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 5.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.18 Bulk Shear: 55.18 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 ------------------------------------------------------------------------------- 500 128 4 51 17| 6.6 0.0 6.6| 31.8 0.0 31.8 63.6 0.95| 7.3 6.9 1000 144 6 60 16| 4.3 0.0 4.3| 42.1 -2.3 39.7 39.7 0.74| 6.0 4.4 1500 138 7 63 17| 2.9 0.7 3.6| 53.4 -6.2 47.2 31.5 0.64| 5.4 3.4 2000 141 9 68 17| 3.6 0.5 4.1| 84.2 -6.2 78.1 39.0 0.74| 5.7 4.2 2500 152 11 76 16| 4.0 0.4 4.4|115.1 -6.2 108.9 43.6 0.79| 6.2 4.9 3000 164 13 86 14| 4.1 0.3 4.4|136.4 -6.2 130.3 43.4 0.82| 6.3 5.1 4000 175 16 104 12| 3.7 0.2 4.0|155.7 -6.2 149.5 37.4 0.83| 5.4 4.5 5000 183 19 124 11| 3.5 0.2 3.7|178.1 -6.2 172.0 34.4 0.83| 5.0 4.1 6000 188 22 141 11| 3.0 0.3 3.3|183.6 -12.8 170.9 28.5 0.78| 4.4 3.4 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250427.00.gif