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
000
ACUS02 KWNS 290524
SWODY2
SPC AC 290523

DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1223 AM CDT SAT AUG 29 2015

VALID 301200Z - 311200Z

...THERE IS A MRGL RISK OF SVR TSTMS ACROSS PARTS OF SRN AND CNTRL
FL...

...SUMMARY...
ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED ON SUNDAY IN THE
MISSISSIPPI VALLEY EASTWARD INTO THE OHIO AND TENNESSEE
VALLEYS...APPALACHIAN MOUNTAINS AND SOUTHWARD INTO THE GULF COAST
STATES. SCATTERED THUNDERSTORMS ARE ALSO EXPECTED IN THE DESERT
SOUTHWEST...ROCKY MOUNTAINS AND NORTHERN PLAINS. THUNDERSTORMS WILL
ALSO BE POSSIBLE ACROSS PARTS OF FLORIDA IN ASSOCIATION WITH
TROPICAL STORM ERIKA.

...FLORIDA...
THE NATIONAL HURRICANE CENTER IS FORECASTING TROPICAL STORM ERIKA TO
MOVE ACROSS THE FL KEYS ON SUNDAY AND INTO THE ERN GULF OF MEXICO.
UNDER THIS SCENARIO...RAINBANDS IN ASSOCIATION WITH ERIKA WILL
OVERSPREAD THE SRN AND CNTRL FL PENINSULA DURING THE DAY. DEPENDING
UPON THE DEGREE OF ORGANIZATION OF ERIKA...STRONG WIND FIELDS AND
VEERING WINDS WITH HEIGHT WILL BE POSSIBLE ACROSS PARTS OF SRN AND
CNTRL FL ON SUNDAY. AS SFC HEATING TAKES PLACE DURING THE DAY IN
AREAS WHERE LOW-LEVEL SHEAR IS MAXIMIZED...A FEW ROTATING STORMS MAY
DEVELOP WITHIN THE RAINBANDS OF ERIKA. THE PRIMARY THREATS WOULD BE
FOR STRONG WIND GUSTS AND A MARGINAL TORNADO THREAT MAINLY FROM THE
TAMPA BAY AREA SSEWD ACROSS THE SRN FL PENINSULA INTO THE MIAMI
AREA.

ELSEWHERE ACROSS THE CONUS...THUNDERSTORMS WILL BE POSSIBLE IN A
LARGE AREA ON SUNDAY AFTERNOON FROM THE MS VALLEY EWD TO THE
APPALACHIAN MTNS WHERE SFC DEWPOINTS SHOULD BE IN THE 60S F AND
POCKETS OF MODERATE INSTABILITY MAY DEVELOP. ADDITIONAL
THUNDERSTORMS ARE EXPECTED ACROSS PARTS OF THE ROCKY MTNS AND IN THE
NRN PLAINS AS AN UPPER-LEVEL TROUGH MOVES INTO THE NRN ROCKIES
SUNDAY AFTERNOON. APART FROM THE MARGINAL SEVERE THREAT IN
FLORIDA...NONE OF THE THUNDERSTORM ACTIVITY ACROSS THE CONUS IS
EXPECTED TO REACH SEVERE LIMITS SUNDAY OR SUNDAY NIGHT.

..BROYLES.. 08/29/2015



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