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
000
ACUS48 KWNS 270907
SWOD48
SPC AC 270905

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0305 AM CST TUE JAN 27 2015

VALID 301200Z - 041200Z

...DISCUSSION...
BELOW-AVERAGE CONFIDENCE EXISTS IN THE EVOLUTION OF A WEAK MID-LEVEL
TROUGH INITIALLY CENTERED NEAR THE LOWER CO VALLEY TO GULF OF CA.
RUN-TO-RUN CONTINUITY REMAINS POOR WITH HOW EMBEDDED IMPULSES
INTERACT/POTENTIALLY PHASE WITH NRN-STREAM DISTURBANCES EMANATING
FROM THE CANADIAN ROCKIES. STILL THE BROADER TREND IS FOR A
SHORTWAVE TROUGH TO REACH THE GREAT PLAINS THIS WEEKEND WITH WEAK
CYCLOGENESIS NEAR SE TX. ALTHOUGH MOISTURE MODIFICATION WILL OCCUR
IN THE WARM SECTOR OVER THE GULF...WEAK MID-LEVEL LAPSE RATES WILL
PROBABLY ONLY YIELD A MARGINALLY UNSTABLE AIR MASS ALONG THE GULF
COAST. THOUGH PREDICTABILITY IS LOW...WORST-CASE SCENARIOS SUGGEST
ONLY LOW-END SEVERE POTENTIAL CENTERED ON D6/SUN.

..GRAMS.. 01/27/2015



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