UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041900.upa.cvt Date: 0000Z 19 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 19 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 46 165 3 SFC 992 112 5.8 -10.2 31 16.0 0.3 165 3 279.6 279.9 273.8 284.7 1.77 2 973 270 5.2 -10.8 30 16.0 -0.3 166 7 280.5 280.8 274.3 285.5 1.72 3 966 329 8.4 -8.6 29 17.0 2.0 167 9 284.3 284.7 276.8 290.4 2.06 4 925 686 6.6 -13.4 22 20.0 -0.2 170 19 286.1 286.3 276.9 290.4 1.47 5 924 695 6.6 -13.4 22 20.0 -0.2 170 19 286.1 286.4 276.9 290.5 1.47 6 850 1371 0.6 -14.4 31 15.0 -4.1 170 19 286.8 287.0 277.2 291.2 1.47 7 812 1736 -2.1 -15.1 36 13.0 -6.0 170 17 287.7 287.9 277.7 292.1 1.45 8 751 2353 -4.9 -14.9 45 10.0 -7.9 170 14 291.1 291.4 279.6 296.0 1.60 9 700 2902 -8.5 -20.5 37 12.0 -11.5 170 11 293.1 293.3 279.7 296.4 1.07 10 618 3854 -14.9 -22.9 50 8.0 -16.7 190 10 296.4 296.5 281.1 299.5 0.98 11 596 4127 -16.3 -25.3 46 9.0 -18.1 196 10 297.8 298.0 281.5 300.5 0.82 12 500 5420 -26.7 -36.7 38 10.0 -27.8 225 9 300.5 300.5 282.0 301.6 0.33 13 400 6990 -38.9 -46.9 43 8.0 -39.4 220 13 304.4 304.5 283.4 304.9 0.14 14 354 7816 -45.9 -53.9 40 8.0 -46.2 226 20 305.8 305.8 283.8 306.1 0.07 15 300 8900 -53.3 -62.3 33 9.0 -53.5 235 29 310.2 310.2 285.4 310.3 0.03 16 256 9902 -60.1 -69.1 30 9.0 -60.2 235 33 314.6 314.6 286.9 314.6 0.01 17 250 10050 -59.7 -68.7 30 9.0 -59.8 230 33 317.3 317.3 287.9 317.4 0.01 18 239 10329 -60.3 -69.3 30 9.0 -60.4 233 32 320.5 320.5 288.9 320.6 0.01 19 214 11025 -53.5 -63.5 28 10.0 -53.7 240 30 341.4 341.4 294.7 341.5 0.03 20 200 11460 -51.9 -61.9 29 10.0 -52.2 245 29 350.6 350.6 296.8 350.8 0.05 21 166 12678 -48.7 -62.7 18 14.0 -49.3 248 25 375.1 375.1 301.5 375.4 0.05 22 151 13297 -51.7 -67.7 13 16.0 -52.2 250 23 380.3 380.3 302.3 380.4 0.03 23 150 13340 -51.5 -67.5 13 16.0 -52.0 250 23 381.3 381.3 302.5 381.5 0.03 24 100 15970 -51.5 -73.5 6 22.0 -52.2 240 15 428.2 428.2 308.6 428.3 0.02 25 80 17415 -53.3 -77.3 4 24.0 -54.1 253 16 452.7 452.7 311.1 452.8 0.01 26 70 18280 -51.5 -75.5 4 24.0 -52.5 260 17 474.2 474.2 313.0 474.3 0.02 27 64 18861 -49.7 -74.7 4 25.0 -51.1 256 16 490.5 490.5 314.2 490.6 0.02 28 50 20460 -52.1 -76.1 4 24.0 -53.4 245 13 520.7 520.7 316.4 520.9 0.02 29 40 21899 -54.3 -78.3 4 24.0 -55.6 234 11 549.5 549.5 318.1 549.6 0.02 30 33 23142 -51.3 -75.3 4 24.0 -53.4 225 10 588.5 588.5 320.1 588.8 0.04 31 30 23760 -52.5 -76.5 4 24.0 -54.5 220 9 601.5 601.5 320.7 601.8 0.04 32 20 26380 -52.1 -76.1 4 24.0 -54.9 215 9 676.7 676.7 323.7 677.2 0.06 33 16 27832 -49.9 -74.9 4 25.0 -53.9 202 9 728.5 728.5 325.3 729.3 0.09 34 14 28702 -51.7 -75.7 4 24.0 -55.4 194 9 750.7 750.8 326.0 751.6 0.09 35 10 30890 -50.7 -74.7 4 24.0 -55.7 175 9 830.3 830.4 328.0 831.9 0.15 36 8.7 31800 -49.3 -74.3 4 25.0 -55.4 869.5 869.6 328.8 871.5 0.19 TRP 256 9902 -60.1 -69.1 30 9.0 -60.2 235 33 314.6 314.6 286.9 314.6 0.01 WND Sounding variables and indices 1000-500 mb thick: 5374.00 m Freezing level: 841.56 mb = 1452.12 m = 4764.10 ft Wetbulb zero: 982.84 mb = 187.50 m = 615.15 ft Precipitable water: 0.26 inches Sfc-500 mean rel hum: 38.57 % Est. max temperature: 13.16 C = 55.68 F Sfc-Lift cond lev (LCL): 774.09 mb = 2113.79 m = 6934.92 ft T: -3.81 C 700-500 lapse rate: 7.23 C/km ThetaE index: 0.00 C Layer 992.0-442381632.0 mb Conv cond level (CCL): 585.12 mb = 4262.94 m = 13985.85 ft Mean mixing ratio: 1.67 g/kg Conv temperature: 24.29 C = 75.72 F Cap Strength: 9.40 C Lifted Index: 10.02 C Risk: None Lifted Index @300 mb: 14.82 C Lifted Index @700 mb: 7.53 C Showalter Index: 8.61 C Risk: None Total Totals Index: 39.60 C Risk: None Vertical Totals Index: 27.30 C Cross Totals Index: 12.30 C K Index: 0.90 Risk: None Sweat Index: 47.00 Risk: None Energy Index: 2.21 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 28.39 J/kg Max Up Vert Vel: 7.53 m/s Conv Inhibition (B-): 69843.18 J/kg Cap Strength: 10.00 C Lift Cond Lev (LCL): 711.80 mb = 2771.53 m = 9092.83 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 213 at 9 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 ---------------------------------------------------------- 0 992 112 165 3 -0.8 2.9 | 50 8 -5.8 -4.8 1 925 686 170 19 -3.3 18.7 | 143 14 -8.3 11.0 2 850 1371 170 19 -3.3 18.7 | 143 14 -8.3 11.0 3 700 2902 170 11 -1.9 10.8 | 114 8 -6.9 3.1 4 500 5420 225 9 6.4 6.4 | 316 2 1.3 -1.4 5 400 6990 220 13 8.4 10.0 | 236 4 3.3 2.2 6 300 8900 235 29 23.8 16.6 | 245 21 18.7 8.9 7 256 9902 235 33 27.0 18.9 | 243 25 22.0 11.2 8 250 10050 230 33 25.3 21.2 | 236 24 20.3 13.5 9 200 11460 245 29 26.3 12.3 | 258 22 21.3 4.5 10 150 13340 250 23 21.6 7.9 | 270 17 16.6 0.1 11 100 15970 240 15 13.0 7.5 | 272 8 8.0 -0.2 12 70 18280 260 17 16.7 3.0 | 292 13 11.7 -4.8 13 50 20460 245 13 11.8 5.5 | 288 7 6.8 -2.2 14 30 23760 220 9 5.8 6.9 | 318 1 0.8 -0.8 15 20 26380 215 9 5.2 7.4 | 339 0 0.1 -0.4 16 10 30890 175 9 -0.8 9.0 | 102 6 -5.8 1.2 Wind Parameters Mean winds (0-6000m): 183.0 at 12.3 knts Storm direction: 213.0 at 9.2 knts Shear (0-3000m) pos: 2.5 neg: 1.1 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 66.6 deg Storm rel helicity (0-3000m) pos: 30.0 neg: -13.3 tot: 16.7 m^2/s^2 ave: 5.6 10^-3 m/s^2 rel: 0.35 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 1.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 16.97 Bulk Shear: 1.67 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 ------------------------------------------------------------------------------- 500 169 10 106 7| 14.3 0.0 14.3| 25.3 0.0 25.3 50.7 0.86| 14.4 12.4 1000 170 14 130 10| 8.2 0.0 8.2| 29.4 0.0 29.4 29.4 0.82| 8.3 6.8 1500 170 16 135 11| 5.5 0.4 5.9| 29.4 -2.1 27.3 18.2 0.73| 6.0 4.3 2000 170 16 136 11| 4.1 1.0 5.1| 29.4 -6.4 23.0 11.5 0.56| 5.1 2.9 2500 170 16 134 11| 3.3 1.3 4.6| 29.4 -10.8 18.6 7.4 0.42| 4.6 2.0 3000 170 15 132 10| 2.5 1.1 3.6| 30.0 -13.3 16.7 5.6 0.35| 4.3 1.5 4000 173 14 131 9| 1.7 0.8 2.6| 31.6 -13.3 18.3 4.6 0.34| 3.7 1.3 5000 177 13 132 8| 1.2 0.7 1.9| 31.9 -13.3 18.6 3.7 0.34| 3.4 1.2 6000 183 12 136 6| 1.0 0.5 1.5| 32.0 -14.2 17.8 3.0 0.28| 3.1 0.8 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250419.00.gif