UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042500.upa.cvt Date: 0000Z 25 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 25 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 ------------------------------------------------------------------------------- 0 1000 105 150 3 SFC 999 113 2.0 -7.0 51 9.0 -1.2 150 3 275.2 275.6 272.1 281.5 2.26 2 964 400 1.2 -10.8 40 12.0 -2.7 157 9 277.2 277.5 272.4 282.2 1.74 3 925 731 -0.9 -12.9 40 12.0 -4.6 165 17 278.4 278.6 272.8 282.8 1.53 4 850 1399 -6.3 -16.3 45 10.0 -8.9 195 15 279.5 279.8 273.0 283.2 1.26 5 787 1996 -11.1 -19.1 52 8.0 -12.9 205 17 280.6 280.8 273.3 283.8 1.07 6 780 2064 -11.7 -19.7 51 8.0 -13.5 206 18 280.7 280.9 273.3 283.8 1.03 7 738 2487 -12.7 -23.7 39 11.0 -14.9 213 19 284.1 284.2 274.8 286.4 0.76 8 700 2889 -14.5 -30.5 24 16.0 -17.1 220 21 286.4 286.5 275.5 287.8 0.43 9 638 3584 -20.1 -35.1 25 15.0 -22.0 235 19 287.8 287.8 276.0 288.7 0.30 10 571 4401 -23.7 -46.7 10 23.0 -25.6 253 17 292.8 292.8 278.2 293.2 0.10 11 500 5360 -29.3 -36.3 51 7.0 -30.0 275 15 297.3 297.4 280.7 298.5 0.34 12 470 5799 -31.1 -37.1 56 6.0 -31.7 279 19 300.4 300.5 282.0 301.5 0.34 13 468 5829 -31.1 -37.1 56 6.0 -31.7 279 19 300.8 300.8 282.1 301.9 0.34 14 400 6920 -39.9 -45.9 53 6.0 -40.2 290 29 303.1 303.2 282.9 303.7 0.16 15 334 8126 -50.3 -56.3 49 6.0 -50.4 299 30 304.9 305.0 283.5 305.2 0.06 16 300 8820 -55.1 -61.1 47 6.0 -55.2 305 31 307.7 307.7 284.5 307.8 0.03 17 280 9258 -57.7 -63.7 46 6.0 -57.8 300 25 310.1 310.1 285.4 310.2 0.03 18 250 9980 -54.1 -60.1 48 6.0 -54.2 270 13 325.6 325.6 290.5 325.8 0.05 19 216 10921 -50.7 -59.7 34 9.0 -51.0 227 10 344.8 344.8 295.5 345.0 0.06 20 200 11420 -50.5 -61.5 26 11.0 -50.8 205 9 352.8 352.8 297.3 353.0 0.05 21 150 13310 -49.5 -66.5 12 17.0 -50.1 185 11 384.8 384.8 303.1 384.9 0.03 22 104 15703 -48.7 -70.7 6 22.0 -49.7 180 11 428.8 428.8 308.7 428.9 0.03 23 100 15960 -49.1 -71.1 6 22.0 -50.1 180 11 432.9 432.9 309.1 433.0 0.03 24 80 17425 -50.3 -74.3 4 24.0 -51.4 155 8 458.9 458.9 311.7 459.0 0.02 25 70 18300 -49.9 -73.9 4 24.0 -51.1 140 7 477.6 477.6 313.2 477.8 0.02 26 50 20500 -49.7 -74.7 4 25.0 -51.4 125 1 526.4 526.4 316.7 526.5 0.03 27 30 23830 -49.7 -75.7 3 26.0 -52.3 135 17 609.1 609.2 321.0 609.5 0.04 28 20 26480 -48.9 -75.9 3 27.0 -52.6 60 5 686.5 686.5 324.0 687.0 0.06 29 18 27170 -50.3 -77.3 3 27.0 -53.9 703.1 703.1 324.6 703.6 0.06 30 14 28820 -47.7 -75.7 3 28.0 -52.9 764.3 764.3 326.4 765.2 0.09 TRP 280 9258 -57.7 -63.7 46 6.0 -57.8 300 25 310.1 310.1 285.4 310.2 0.03 WND Sounding variables and indices 1000-500 mb thick: 5255.00 m Freezing level: 941.71 mb = 589.24 m = 1933.19 ft Wetbulb zero: Below ground Precipitable water: 0.19 inches Sfc-500 mean rel hum: 33.98 % Est. max temperature: 6.33 C = 43.40 F Sfc-Lift cond lev (LCL): 868.22 mb = 1231.41 m = 4040.02 ft T: -4.95 C 700-500 lapse rate: 5.99 C/km ThetaE index: 0.05 C Layer 780.0- 738.0 mb Conv cond level (CCL): 693.95 mb = 2954.11 m = 9691.83 ft Mean mixing ratio: 1.72 g/kg Conv temperature: 13.32 C = 55.98 F Cap Strength: 9.91 C Lifted Index: 12.75 C Risk: None Lifted Index @300 mb: 17.95 C Lifted Index @700 mb: 6.40 C Showalter Index: 12.11 C Risk: None Total Totals Index: 36.00 C Risk: None Vertical Totals Index: 23.00 C Cross Totals Index: 13.00 C K Index: -9.30 Risk: None Sweat Index: 193.10 Risk: None Energy Index: 3.17 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.84 J/kg Max Up Vert Vel: 5.07 m/s Conv Inhibition (B-): 55921.01 J/kg Cap Strength: 12.60 C Lift Cond Lev (LCL): 793.74 mb = 1929.44 m = 6330.12 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 258 at 13 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 ---------------------------------------------------------- 0 999 113 150 3 -1.5 2.6 | 90 14 -14.0 -0.0 1 925 731 165 17 -4.4 16.4 | 129 22 -16.9 13.8 2 850 1399 195 15 3.9 14.5 | 144 15 -8.6 11.9 3 700 2889 220 21 13.5 16.1 | 184 14 1.0 13.5 4 500 5360 275 15 14.9 -1.3 | 328 5 2.4 -3.9 5 400 6920 290 29 27.3 -9.9 | 310 19 14.7 -12.5 6 300 8820 305 31 25.4 -17.8 | 328 24 12.9 -20.4 7 280 9258 300 25 21.7 -12.5 | 329 18 9.1 -15.1 8 250 9980 270 13 13.0 -0.0 | 350 3 0.5 -2.6 9 200 11420 205 9 3.8 8.2 | 122 10 -8.7 5.6 10 150 13310 185 11 1.0 11.0 | 126 14 -11.6 8.4 11 100 15960 180 11 0.0 11.0 | 124 15 -12.5 8.4 12 70 18300 140 7 -4.5 5.4 | 99 17 -17.0 2.8 13 50 20500 125 1 -0.8 0.6 | 81 13 -13.3 -2.0 14 30 23830 135 17 -12.0 12.0 | 111 26 -24.5 9.4 15 20 26480 60 5 -4.3 -2.5 | 73 18 -16.9 -5.1 Wind Parameters Mean winds (0-6000m): 228.3 at 17.1 knts Storm direction: 258.3 at 12.8 knts Shear (0-3000m) pos: 3.4 neg: 0.0 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 99.3 deg Storm rel helicity (0-3000m) pos: 119.3 neg: 0.0 tot: 119.3 m^2/s^2 ave: 39.8 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 5.9 stream: 4.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.40 Bulk Shear: 32.45 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 ------------------------------------------------------------------------------- 500 162 9 110 16| 11.7 0.0 11.7| 43.3 0.0 43.3 86.6 0.84| 11.8 10.0 1000 168 12 122 18| 6.9 0.0 6.9| 71.7 0.0 71.7 71.7 0.79| 9.8 7.7 1500 177 13 129 17| 4.8 0.0 4.8| 84.0 0.0 84.0 56.0 0.75| 8.2 6.2 2000 185 14 136 16| 4.2 0.0 4.2| 95.9 0.0 95.9 47.9 0.78| 6.9 5.4 2500 192 15 143 15| 3.9 0.0 3.9|108.3 0.0 108.3 43.3 0.80| 6.3 5.0 3000 198 16 150 15| 3.4 0.0 3.4|119.3 0.0 119.3 39.8 0.81| 5.9 4.7 4000 209 17 160 13| 2.4 0.0 2.4|131.0 0.0 131.0 32.8 0.78| 5.4 4.2 5000 218 17 169 11| 1.8 0.0 1.8|138.2 0.0 138.2 27.6 0.79| 5.1 4.0 6000 228 17 181 9| 2.0 0.0 2.0|139.5 -3.6 135.9 22.7 0.66| 4.9 3.3 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250425.00.gif