LATEST UPPER AIR SOUNDING
NOTE!  Normal observations are at 0Z or 12Z.

Station: KNKX Date: 0000Z 9 JUL 08  
1000-500 Mb Thickness (Ft) 19142.08  
Freezing Level (Ft) 15751  
Wet Bulb Zero (Ft) 13727 HAIL UNLIKELY
Precipitable Water (Inches) 1.5  
Sfc-500 Mean Rel Humidity (%) 45  
700-500 Lapse Rate (C/km) 8.18  
ThetaE Index (C/km) 19.48  
Lifted Index (C) 2.15 SLIGHTLY UNSTABLE
Showalter Index (C) -3.01 SEVERE THUNDERSTORMS POSSIBLE
Total Totals Index 54.2 THUNDERSTORMS MORE LIKELY - POSSIBLE SEVERE
K Index 35.7 NUMEROUS THUNDERSTORMS
Sweat Index 281.2 NON-SEVERE THUNDERSTORMS
Energy Index -3.48 SEVERE THUNDERSTORMS PROBABLE - TORNADOES POSSIBLE
CAPE (B+) (J/Kg) 74.45  
NCAPE (B+) (J/Kg) NA  
Max Up Vert Vel (m/s) 12.2  
CIN (B-) (J/Kg) 56832.76  
CAP Strength (C) 15.01 STRONG CAP
Lift Cond Lev (LCL) (Ft) 5193.18  
Lev Free Conv (LFC) (Ft) -9999  
Equalibrium Lev (EL) (Ft) 0  
Storm Direction   103.0 at 13.1 knts
Shear (0-3Km) (10-3/s) 3.9  
Storm Rel Helicity (0-3Km) 89.8 NONE TO VERY WEAK HELICAL FLOW
Storm Rel Vorticity (0-3Km) 3.7  
Energy-Hel Index 0.04 TORNADOES UNLIKELY
BULK Richardson 0.99 INSUFFICIENT SHEAR AND/OR CAPE VALUES
BULK Shear (m/s) 75.54  

LATEST RUC (RAPID UPDATE CYCLE) FORECAST

KSAN 9Z JUL 9, 2008 0 Hr 3 Hr 6 Hr 9 Hr 12 Hr
Lift Cond Lev (LCL) (m agl) 248 191 462 833 981
Lev Free Conv (LFC) (m agl) NONE NONE NONE NONE NONE
0-3km CAPE(J/kg) NONE NONE NONE NONE NONE
Most Unstable CAPE (MUCAPE) (J/kg) 5256 3147 1921 1544 1189
Mixed Layer CAPE (MLCAPE) (J/kg) 761 932 887 669 449
Mixed Layer CIN (MLCINH) (J/kg) -730 P -640 P -600 P -667 P -726 P
0-3km Vorticity Generation Parameter (VGP) 0.00 0.00 0.04 0.08 0.12
0-1km Energy Helicity Index (EHI) 0.00 P 0.00 P 0.02 P 0.22 P 0.32 P
0-3km Energy Helicity Index (EHI) 0.00 0.00 -0.03 0.35 0.42
0-1km Storm-Relative Helicity (SRH) 73 18 23 36 54
0-3km Storm-Relative Helicity (SRH) 148 40 42 64 79
0-1km Shear (kt) 8 4 9 10 11
0-3km Shear (kt) 14 7 9 13 19
Significant Tornado Parameter (STP) 0.35 0.09 0.07 0.03 0.00
Supercell Composite Parameter (SCP) 6 0 0 0 1
Craven Sig Severe 9.96 11.21 9.68 8.00 5.67
Hail Size (In) 0 0 0 0 0
Conv Gust (Kts) 65 64 63 63 64
Best LI (C) 5.51 4.06 0.52 -1.62 -1.35
WZH (1000 Ft AGL) 13.37 13.01 12.86 12.84 12.88


Support For Supercells: S-strong, O-OK, M-Marginal, P-Poor
VGP - Values greater than 0.2 suggest an increasing possibility of tornadic storms
STP - Values greater than 1 suggest an increasing possibility of tornadic storms
Craven Sig Severe - Values greater than 20 suggest an increasing possibility of sig severe storms

 

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 ESPERANZA WEATHER CENTER
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