UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050512.upa.cvt Date: 1200Z 5 MAY 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 5 MAY 25 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 66 1 925 696 110 7 SFC 920 739 0.0 -3.2 79 3.2 -1.3 110 7 279.7 280.3 276.1 288.9 3.28 3 850 1367 -4.7 -7.9 78 3.2 -5.8 145 15 281.2 281.6 275.7 288.3 2.48 4 808 1766 -7.5 -9.9 83 2.4 -8.2 148 13 282.4 282.7 276.0 288.8 2.23 5 700 2877 -12.7 -14.9 84 2.2 -13.3 155 9 288.4 288.7 278.4 293.6 1.72 6 511 5204 -25.9 -29.4 72 3.5 -26.4 164 11 299.6 299.7 282.1 301.7 0.66 7 500 5360 -27.1 -30.6 72 3.5 -27.6 165 11 300.0 300.1 282.1 302.0 0.60 8 401 6923 -37.9 -41.5 69 3.6 -38.2 96 25 305.5 305.6 284.0 306.4 0.25 9 400 6940 -37.9 -41.5 69 3.6 -38.2 95 25 305.7 305.8 284.0 306.6 0.25 10 300 8850 -53.5 -57.2 64 3.7 -53.6 90 46 309.9 309.9 285.4 310.1 0.06 11 295 8958 -55.1 -58.7 64 3.6 -55.2 93 43 309.2 309.2 285.1 309.3 0.05 12 285 9177 -56.1 -59.6 65 3.5 -56.2 100 38 310.8 310.8 285.7 311.0 0.04 13 281 9267 -56.1 -59.6 65 3.5 -56.2 104 36 312.1 312.1 286.1 312.2 0.04 14 277 9358 -54.1 -57.9 63 3.8 -54.2 108 33 316.2 316.2 287.6 316.4 0.06 15 260 9766 -52.1 -55.8 64 3.7 -52.2 125 22 324.9 325.0 290.3 325.2 0.08 16 250 10020 -51.1 -54.8 65 3.7 -51.2 135 15 330.1 330.1 291.8 330.5 0.09 17 219 10884 -48.3 -52.9 59 4.6 -48.5 153 14 347.2 347.2 296.1 347.7 0.13 18 200 11480 -47.9 -52.9 56 5.0 -48.1 165 13 356.9 357.0 298.2 357.5 0.14 19 160 12954 -47.9 -55.9 39 8.0 -48.4 173 18 380.4 380.5 302.4 381.0 0.12 20 150 13380 -48.5 -57.5 34 9.0 -49.0 175 19 386.5 386.5 303.3 387.0 0.11 21 101 15955 -50.5 -62.5 23 12.0 -51.2 185 9 428.9 429.0 308.7 429.4 0.08 22 100 16020 -50.5 -62.5 23 12.0 -51.2 185 9 430.2 430.2 308.9 430.6 0.09 23 70 18340 -51.1 -66.1 15 15.0 -52.1 200 7 475.1 475.1 313.1 475.5 0.08 24 55 19916 -50.1 -66.1 14 16.0 -51.4 171 8 511.3 511.3 315.8 511.9 0.10 25 50 20540 -50.5 -67.5 12 17.0 -52.0 160 9 524.5 524.5 316.6 525.0 0.09 26 45 21225 -50.3 -67.3 12 17.0 -51.9 148 8 541.0 541.0 317.6 541.7 0.10 27 31 23647 -50.7 -68.7 10 18.0 -52.8 104 5 600.8 600.8 320.7 601.7 0.12 28 30 23860 -50.9 -68.9 10 18.0 -53.0 100 5 605.9 605.9 320.9 606.8 0.12 29 20 26540 -48.1 -68.1 8 20.0 -51.8 145 7 688.9 689.0 324.1 690.7 0.20 30 17 27610 -48.5 -68.5 8 20.0 -52.5 720.4 720.5 325.1 722.4 0.22 TRP 285 9177 -56.1 -59.6 65 3.5 -56.2 100 38 310.8 310.8 285.7 311.0 0.04 WND Sounding variables and indices 1000-500 mb thick: 5294.00 m Freezing level: 920.00 mb = 739.36 m = 2425.69 ft Wetbulb zero: Below ground Precipitable water: 0.33 inches Sfc-500 mean rel hum: 79.30 % Est. max temperature: 4.54 C = 40.16 F Sfc-Lift cond lev (LCL): 875.11 mb = 1136.08 m = 3727.26 ft T: -2.97 C 700-500 lapse rate: 5.80 C/km ThetaE index: 0.62 C Layer 850.0- 808.0 mb Conv cond level (CCL): 810.95 mb = 1736.95 m = 5698.58 ft Mean mixing ratio: 2.72 g/kg Conv temperature: 2.47 C = 36.44 F Cap Strength: 10.06 C Lifted Index: 10.20 C Risk: None Lifted Index @300 mb: 15.21 C Lifted Index @700 mb: 3.86 C Showalter Index: 10.41 C Risk: None Total Totals Index: 41.60 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 19.20 C K Index: 12.30 Risk: None Sweat Index: 41.00 Risk: None Energy Index: 2.81 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.00 J/kg Max Up Vert Vel: 4.00 m/s Conv Inhibition (B-): 60698.68 J/kg Cap Strength: 10.06 C Lift Cond Lev (LCL): 828.29 mb = 1570.58 m = 5152.75 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 174 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 ---------------------------------------------------------- 0 920 739 110 7 -6.6 2.4 | 39 9 -5.6 -6.8 1 850 1367 145 15 -8.6 12.3 | 112 8 -7.6 3.1 2 700 2877 155 9 -3.8 8.2 | 70 3 -2.8 -1.0 3 500 5360 165 11 -2.8 10.6 | 129 2 -1.8 1.5 4 400 6940 95 25 -24.9 2.2 | 74 25 -23.9 -7.0 5 300 8850 90 46 -46.0 0.0 | 78 46 -45.0 -9.2 6 285 9177 100 38 -37.4 6.6 | 86 36 -36.4 -2.6 7 250 10020 135 15 -10.6 10.6 | 99 10 -9.6 1.4 8 200 11480 165 13 -3.4 12.6 | 145 4 -2.3 3.4 9 150 13380 175 19 -1.7 18.9 | 176 10 -0.6 9.8 10 100 16020 185 9 0.8 9.0 | 276 2 1.8 -0.2 11 70 18340 200 7 2.4 6.6 | 307 4 3.4 -2.6 12 50 20540 160 9 -3.1 8.5 | 71 2 -2.1 -0.7 13 30 23860 100 5 -4.9 0.9 | 25 9 -3.9 -8.3 14 20 26540 145 7 -4.0 5.7 | 41 5 -3.0 -3.4 Wind Parameters Mean winds (0-6000m): 143.6 at 12.3 knts Storm direction: 173.6 at 9.2 knts Shear (0-3000m) pos: 1.2 neg: 0.0 tot: 1.2 10-3/s Storm rel Dir Shear (0-3000m): 47.5 deg Storm rel helicity (0-3000m) pos: 22.9 neg: -3.6 tot: 19.3 m^2/s^2 ave: 6.4 10^-3 m/s^2 rel: 0.47 Storm rel vorticity (0-3000m) horiz: 3.0 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 5.76 Bulk Shear: 1.39 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 ------------------------------------------------------------------------------- 500 131 10 69 7| 8.1 0.0 8.1| 17.5 0.0 17.5 34.9 0.99| 8.3 8.3 1000 139 12 91 7| 4.6 0.0 4.6| 22.4 -0.6 21.8 21.8 0.86| 6.1 5.2 1500 143 12 95 6| 2.7 0.0 2.7| 22.4 -1.8 20.6 13.7 0.67| 4.8 3.2 2000 144 12 95 6| 1.7 0.0 1.7| 22.4 -3.2 19.2 9.6 0.49| 4.1 2.0 2500 146 11 93 5| 1.4 0.0 1.4| 22.6 -3.6 19.0 7.6 0.46| 3.5 1.6 3000 148 11 92 5| 1.2 0.0 1.2| 22.9 -3.6 19.3 6.4 0.47| 3.0 1.4 4000 151 11 94 4| 1.1 0.0 1.1| 23.6 -3.6 20.0 5.0 0.50| 2.4 1.2 5000 153 11 98 4| 0.9 0.5 1.4| 24.0 -5.1 18.9 3.8 0.36| 2.5 0.9 6000 144 12 97 6| 0.8 1.7 2.5| 24.0 -40.5 -16.5 -2.7 0.00| 3.5 0.0 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250505.12.gif