Severe Weather Outlook for December 27, 2010

This page has information on possible severe weather tomorrow as provided by the Weather Service Storm Prediction Center. You can also view outlooks for today, and the day after tomorrow. The day two outlook is normally updated around 2 AM and 2 PM Eastern time.

Refer to the text discussion below the map for descriptions of possible severe weather threats.

Hazardous Weather Forecast Maps:

Severe Weather Discussion:

000
ACUS02 KWNS 261624
SWODY2
SPC AC 261623

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1023 AM CST SUN DEC 26 2010

VALID 271200Z - 281200Z

...NO TSTM AREAS FORECAST...

...SYNOPSIS...
A DRY PATTERN WILL EXIST ACROSS THE CONUS ON MONDAY BENEATH A
GENERALLY WNW FLOW REGIME ALOFT...WITH PROGRESSIVE TROUGHS HELPING
TO MAINTAIN A FETCH OF DRY POLAR AIR OUT OF CANADA. WITH GENERALLY
HIGH PRESSURE AT THE SURFACE.

AT THE START OF THE PERIOD...A STRONG SURFACE LOW WILL EXIST OVER
SRN NEW ENGLAND...AND WILL EJECT NEWD INTO NOVA SCOTIA BY EVENING.
STRONG FORCING WITH THE LOW...AND COOL TEMPERATURES ALOFT UNDER THE
UPPER LOW CENTER SUGGEST VERY WEAK INSTABILITY ROOTED AROUND 700 MB
MAY EXIST...BUT OVERALL LIGHTNING AND CERTAINLY THUNDERSTORM
POTENTIAL WILL REMAIN MINIMAL.

FARTHER W...A STRONG UPPER LEVEL JET STREAM WILL NOSE INTO THE
PACIFIC NW BY 00Z...WITH A SURFACE LOW JUST OFFSHORE THE WA COAST.
LAPSE RATE PROFILES WILL NOT BE NEARLY AS STEEP AS ON THE PREVIOUS
DAY...BUT SOME MODEL FORECAST SOUNDINGS INDICATE WEAK INSTABILITY
ROOTED AROUND 700 MB. THEREFORE...A ROGUE LIGHTNING STRIKE CANNOT BE
RULED OUT MONDAY AFTERNOON/EVENING BUT COVERAGE SHOULD BE QUITE LOW.

..JEWELL.. 12/26/2010