Severe Storm Outlook Narrative (AC)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
ACUS01 KWNS 201606
SWODY1
SPC AC 201605

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1005 AM CST SAT DEC 20 2014

VALID 201630Z - 211200Z

...NO TSTM AREAS FORECAST...

...SUMMARY...
THUNDERSTORMS NOT EXPECTED OVER THE CONTINENTAL U.S. TODAY.

...SYNOPTIC SETUP/FORECAST...
LARGELY ZONAL FLOW WILL PREVAIL OVER THE CONUS THROUGH EARLY
SUN...DOWNSTREAM FROM POWERFUL/DEEP ZONAL JET TOPPING BROAD RIDGE
OVER THE CNTRL AND E PACIFIC. A SERIES OF WEAK DISTURBANCES OVER THE
E CNTRL AND SERN STATES WILL FURTHER DEAMPLIFY AS THEY CONTINUE E
INTO THE ATLANTIC. PATTERN WILL THEREFORE REMAIN UNFAVORABLE FOR
APPRECIABLE ELEVATED WAA/MOISTURE TRANSPORT ATOP SHALLOW COOL DOME
OVER THE NERN GULF OF MEXICO AND THE ADJACENT GULF CST. ELEVATED
CONVECTION IN THAT REGION SHOULD THEREFORE REMAIN TOO SHALLOW/WEAK
FOR THUNDER.

IN THE PACIFIC NORTHWEST...LOW TO MID-TROPOSPHERIC WIND FIELD WILL
FURTHER STRENGTHEN LATER TODAY...YIELDING STRONG...VERTICALLY
VEERING WIND PROFILES OVER WRN WA AS DEVELOPING SFC WAVE W OF
VANCOUVER ISLAND CONTINUES EWD. GRADUAL WARMING AT MID-LVLS AND
LIMITED LOW-LVL BUOYANCY SHOULD...HOWEVER...PRECLUDE ANY ATTENDANT
THUNDER THREAT.

..CORFIDI/GLEASON.. 12/20/2014




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.