N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Mark TewChief, Marine and Coastal Weather Services Branch
Office of Climate, Water, and Weather [email protected] x 125
Marine and Tropical Services UpdateMarine and Tropical Services Update
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Marine Program OverviewMarine Program Overview
• Expanding the National Digital Forecast Database
into the Offshore and High Seas
• Experimental National Marine Weather Web Portal
• Experimental Beach Hazards Statement
• Expanding the National Digital Forecast Database
into the Offshore and High Seas
• Experimental National Marine Weather Web Portal
• Experimental Beach Hazards Statement
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Expanding the National Digital Forecast Database into the
Offshore & High Seas - Four variables
to begin: wind, wind gust, wave height and marine hazards
- Joins the new interactive graphical display
- Will soon be joined by grids further north and then in Hawaii and Alaska
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O NExperimental National Marine Weather
Web Portal: preview.weather.gov/mwp
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Experimental Beach Hazards Statement
• New segment & VTEC code (BH.S) in the NWS Coastal Hazard Message (CFW)
• Provides information about hazards affecting people in coastal/beach areas and in the surf zone
– Locally significant weather-related hazards issued from all participating test offices
– Ecological-related hazards at select offices (partnership w/NOAA LOs or gov’t agencies)
• Test began May 2012: 6 WFOs
• Expanded May 2013: 10 more WFOs
(16 total) Feedback:weather.gov/survey/nws-survey.php?code=chmbhs
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Tropical Program OverviewTropical Program Overview
2013 Changes• Post-tropical cyclone policy change• Experimental Probabilistic Hurricane Storm Surge With Tide• Experimental Tropical Cyclone Impact Graphics • Experimental Extended Tropical Weather Outlook
Changes On The Way• Storm Surge- Inundation Graphic
- Storm Surge Watch/Warning• Extended Graphical Tropical Weather Outlook• Watch/Warning Process (TCV, HLS)
2013 Changes• Post-tropical cyclone policy change• Experimental Probabilistic Hurricane Storm Surge With Tide• Experimental Tropical Cyclone Impact Graphics • Experimental Extended Tropical Weather Outlook
Changes On The Way• Storm Surge- Inundation Graphic
- Storm Surge Watch/Warning• Extended Graphical Tropical Weather Outlook• Watch/Warning Process (TCV, HLS)
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Changes implemented for 2013Changes implemented for 2013
• “NHC advisory products will continue if a post-tropical cyclone continues to pose a significant threat to life and property and if the transfer of responsibility to another office would result in an unacceptable discontinuity of service.”
- Modifies definitions for tropical cyclone watches and warnings- Full suite of NHC and WFO products continue
• The NHC Tropical Weather Outlook (TWO) product for the Atlantic and east Pacific basins will experimentally include probabilistic information, in 10-percent increments, about a system’s potential for developing into a tropical cyclone in the next 5 days.
• The extended forecast and discussion will be embedded within the current TWO text product on a disturbance-by-disturbance basis.
• “NHC advisory products will continue if a post-tropical cyclone continues to pose a significant threat to life and property and if the transfer of responsibility to another office would result in an unacceptable discontinuity of service.”
- Modifies definitions for tropical cyclone watches and warnings- Full suite of NHC and WFO products continue
• The NHC Tropical Weather Outlook (TWO) product for the Atlantic and east Pacific basins will experimentally include probabilistic information, in 10-percent increments, about a system’s potential for developing into a tropical cyclone in the next 5 days.
• The extended forecast and discussion will be embedded within the current TWO text product on a disturbance-by-disturbance basis.
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Experimental Tropical Cyclone Impact Graphics Graphics
• Provides potential impacts of the 4 main hazards from tropical cyclones:
- Wind- Coastal flooding- Inland flooding- TornadoesSome offices also issue a marine hazards and
combined impact graphic• Working with social scientist on how to
more effectively communicate the impacts • New for 2013 - Mosaic of multiple WFOs • Operational in 2015
http://w1.weather.gov/tcig
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Experimental Probabilistic Hurricane Storm Surge With Tide
New storm surge website (P-Surge 2.0). http://www.nws.noaa.gov/mdl/psurge2.0/
Enhanced by:
•Incorporating tide•Providing both above ground and above datum products•Creating probability products at 6 hour intervals for above ground•Incorporating the latest North American Vertical Datum of 1988 (NAVD88) Sea, Lake, and Overland Surges from Hurricane (SLOSH) basins
Tropical Storm Andrea Advisory 2 Storm Surge >= 2 feet
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Storm Surge Inundation Graphic
• The entire graphic including colors, labels, thresholds, wording – was tested extensively by social scientists with focus groups
• Implementation of experimental tropical cyclone inundation graphic in 2014
• Lays the foundation for extra-tropical inundation graphic (beyond 2015)
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Storm Surge Watch/Warning
• NWS is developing a collaborative process between the NHC and WFOs to issue tropical cyclone storm surge watches and warnings
• Implementation of experimental tropical cyclone storm surge watches and warnings in 2015
• Future work: Expand to include extra-tropical storms
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Transformation of Tropical Cyclone Watch/Warning Program
Transformation of Tropical Cyclone Watch/Warning Program
• Start Transformation by the 2015 Hurricane Season New Storm Surge Watch and Storm Surge Warning product Disseminated through a TCV-like product from NHC and WFOs
• New WFO Tropical Cyclone VTEC (TCV) Largely automated and include all local watches and warnings and
meteorological information in a one zone-one segment basis Replaces the Hurricane Local Statement (HLS) as the WFO tropical
cyclone watch/warning product
• Updated HLS – No VTEC, Non-Segmented Product Discussion preparedness product conveying a succinct message on
local impacts Reformatted based on social science research
• Start Transformation by the 2015 Hurricane Season New Storm Surge Watch and Storm Surge Warning product Disseminated through a TCV-like product from NHC and WFOs
• New WFO Tropical Cyclone VTEC (TCV) Largely automated and include all local watches and warnings and
meteorological information in a one zone-one segment basis Replaces the Hurricane Local Statement (HLS) as the WFO tropical
cyclone watch/warning product
• Updated HLS – No VTEC, Non-Segmented Product Discussion preparedness product conveying a succinct message on
local impacts Reformatted based on social science research
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
HLS/TCV/Storm Surge Key Milestones
DateDate ActionAction StatusStatus
Apr 2013Storm Surge Inundation Graphic approved by Social Science
Complete
Oct 2013 New HLS/TCV examples approved by social scienceIn
ProgressDec 2013 Develop HLS/TCV requirements On TrackJun 2014 Develop HLS/TCV formatter On TrackJun 2014 Implement experimental tropical inundation graphic On Track
Jun 2014Test HLS/TCV formatter at Operations Proving Ground (OPG)
On Track
Jul 2014 Issue PNS to announce experimental test of new TCV On TrackAug - Nov
2014OT&E of experimental TCV at OPG On Track
Jun 2015Implement experimental tropical Storm Surge Watch & Warning
On Track
Jun 2015 Implement operational WFO TCV & updated HLS On TrackJun 2015 Implement operational TCIG – approved by social science On Track
June 2016Implement operational tropical Storm Surge Watch/Warning and inundation graphic
On TrackNWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
QuestionsQuestions
Mark Tew [email protected] 301-713-1677 x125
Mark Tew [email protected] 301-713-1677 x125
NWS Marine and Coastal Weather Services Branch NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Experimental Extended Graphical Tropical Weather Outlook Graphical Tropical Weather Outlook Graphics
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Storm Surge ImprovementsStorm Surge Improvements
NOAA Storm Surge Roadmap commenced in 2005, following Hurricane Isabel (2003) and was energized by Hurricanes Katrina (2005), Ike (2008) and Sandy (2012)
• Comprehensive social science research has been completed and documents the public’s understanding, or lack thereof, of storm surge
• NWS needs to provide (text) storm surge information in terms of “total water level/inundation” (height above ground)
• NWS needs to provide a forecast inundation graphic• WMO and Hurricane Sandy Assessment recommend a storm
surge warning, a “missing link” for our nation’s hurricane program
NOAA Storm Surge Roadmap commenced in 2005, following Hurricane Isabel (2003) and was energized by Hurricanes Katrina (2005), Ike (2008) and Sandy (2012)
• Comprehensive social science research has been completed and documents the public’s understanding, or lack thereof, of storm surge
• NWS needs to provide (text) storm surge information in terms of “total water level/inundation” (height above ground)
• NWS needs to provide a forecast inundation graphic• WMO and Hurricane Sandy Assessment recommend a storm
surge warning, a “missing link” for our nation’s hurricane program
NWS Partners Meeting - August 2013
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Possible WFO-issued TCV productWaiting for Social Science Input
Possible WFO-issued TCV productWaiting for Social Science Input
XXXX## KCHS 272130TCVCHS URGENT - IMMEDIATE BROADCAST REQUESTEDHURRICANE XENA LOCAL WATCH/WARNING VTEC STATEMENT AL012000NATIONAL WEATHER SERVICE CHARLESTON SC530 PM EDT SUN AUG 27 2000 SCZ050-300200-/O.CON.KCHS.HU.W.1001.000000T0000Z-000000T0000Z//O.CON.KCHS.SS.W.1001.000000T0000Z-000000T0000Z//O.CON.KCHS.FF.A.0010.000000T0000Z-083100T0000Z/CHARLESTON-530 PM EDT SUN AUG 27 2000 ...HURRICANE WARNING IN EFFECT......STORM SURGE WARNING IN EFFECT......FLOOD WATCH IN EFFECT... * WIND POTENTIAL MAX SUST WIND MAX WIND GUSTS DURATION ONSET DAY 70 – 90 MPH 110 MPH 4 - 6 HRS AFTERNOON TUE * STORM SURGE AND STORM TIDE POTENTIAL /ABOVE GROUND LEVEL/ MAX SURGE MAX STORM TIDE ONSET DAY 8 – 15 FT 13 – 20 FT AFTERNOON TUE
* RAINFALL POTENTIAL AMOUNTS ONSET DAY 8 – 12 IN MORNING TUE
XXXX## KCHS 272130TCVCHS URGENT - IMMEDIATE BROADCAST REQUESTEDHURRICANE XENA LOCAL WATCH/WARNING VTEC STATEMENT AL012000NATIONAL WEATHER SERVICE CHARLESTON SC530 PM EDT SUN AUG 27 2000 SCZ050-300200-/O.CON.KCHS.HU.W.1001.000000T0000Z-000000T0000Z//O.CON.KCHS.SS.W.1001.000000T0000Z-000000T0000Z//O.CON.KCHS.FF.A.0010.000000T0000Z-083100T0000Z/CHARLESTON-530 PM EDT SUN AUG 27 2000 ...HURRICANE WARNING IN EFFECT......STORM SURGE WARNING IN EFFECT......FLOOD WATCH IN EFFECT... * WIND POTENTIAL MAX SUST WIND MAX WIND GUSTS DURATION ONSET DAY 70 – 90 MPH 110 MPH 4 - 6 HRS AFTERNOON TUE * STORM SURGE AND STORM TIDE POTENTIAL /ABOVE GROUND LEVEL/ MAX SURGE MAX STORM TIDE ONSET DAY 8 – 15 FT 13 – 20 FT AFTERNOON TUE
* RAINFALL POTENTIAL AMOUNTS ONSET DAY 8 – 12 IN MORNING TUE
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Possible WFO HLS productWaiting for Social Science Input
Possible WFO HLS productWaiting for Social Science Input
WTUS82 KCHS 272130HLSCHS URGENT - IMMEDIATE BROADCAST REQUESTEDHURRICANE XENA LOCAL STATEMENTNATIONAL WEATHER SERVICE CHARLESTON SC AL012000530 PM EDT SUN AUGUST 27 2000 ...HURRICANE XENA IN NORTHWESTERN BAHAMAS MOVING TOWARD THE LOW COUNTRY... * NEW INFORMATION A HURRICANE WARNING IS NOW IN EFFECT FOR SOUTHERN SOUTH CAROLINA. HURRICANE XENA HAS STRENGTHENED TO A CATEGORY 3 ON THE SAFFIR SIMPSON WIND SCALE WITH MAXIMUM SUSTAINED WINDS OF 120 MPH AND GUSTS TO 145 MPH. * WATCHES/WARNINGS HURRICANE WARNING IS IN EFFECT FOR THE FOLLOWING COUNTIES IN GEORGIA…MCINTOSH…LIBERTY…BRYAN…CHATHAM…EFFINGHAM…AND SCREVENIN SOUTH CAROLINA…JASPER…HAMPTON…ALLENDALE…BEAUFORT…COLLETON…CHARLESTON…DORCHESTER…ANDBERKELEY STORM SURGE WARNING IS IN EFFECT FOR THE FOLLOWING COUNTIES IN GEORGIA…MCINTOSH…LIBERTY…BRYAN…AND CHATHAM, etc. TROPICAL STORM WARNING IS IN EFFECT FOR THE FOLLOWING COUNTIES IN GEORGIA…LONG…TATNALL…EVANS…CANDLER…AND JENKINS FLOOD WATCH IS IN EFFECT FOR SOUTHERN SOUTH CAROLINA AND SOUTHEAST GEORGIA.
WTUS82 KCHS 272130HLSCHS URGENT - IMMEDIATE BROADCAST REQUESTEDHURRICANE XENA LOCAL STATEMENTNATIONAL WEATHER SERVICE CHARLESTON SC AL012000530 PM EDT SUN AUGUST 27 2000 ...HURRICANE XENA IN NORTHWESTERN BAHAMAS MOVING TOWARD THE LOW COUNTRY... * NEW INFORMATION A HURRICANE WARNING IS NOW IN EFFECT FOR SOUTHERN SOUTH CAROLINA. HURRICANE XENA HAS STRENGTHENED TO A CATEGORY 3 ON THE SAFFIR SIMPSON WIND SCALE WITH MAXIMUM SUSTAINED WINDS OF 120 MPH AND GUSTS TO 145 MPH. * WATCHES/WARNINGS HURRICANE WARNING IS IN EFFECT FOR THE FOLLOWING COUNTIES IN GEORGIA…MCINTOSH…LIBERTY…BRYAN…CHATHAM…EFFINGHAM…AND SCREVENIN SOUTH CAROLINA…JASPER…HAMPTON…ALLENDALE…BEAUFORT…COLLETON…CHARLESTON…DORCHESTER…ANDBERKELEY STORM SURGE WARNING IS IN EFFECT FOR THE FOLLOWING COUNTIES IN GEORGIA…MCINTOSH…LIBERTY…BRYAN…AND CHATHAM, etc. TROPICAL STORM WARNING IS IN EFFECT FOR THE FOLLOWING COUNTIES IN GEORGIA…LONG…TATNALL…EVANS…CANDLER…AND JENKINS FLOOD WATCH IS IN EFFECT FOR SOUTHERN SOUTH CAROLINA AND SOUTHEAST GEORGIA.
* STORM INFORMATION AT 5 PM EDT...THE CENTER OF HURRICANE XENA WAS LOCATED NEAR LATITUDE 25.3N AND LONGITUDE 76.3W. THIS WAS ABOUT 550 MILES SOUTHEAST OF SAVANNAH GEORGIA ...OR ABOUT 560 MILES SOUTH SOUTHEAST OF CHARLESTON SOUTH CAROLINA. STORM MOTION WAS NW AT 15 MPH. STORM MAXIMUM WIND SPEED WAS 120 MPH. * POTENTIAL IMPACTS HURRICANE XENA IS EXPECTED TO MAKE LANDFALL AS A MAJOR HURRICANE ON THE SOUTHERN SOUTH CAROLINA COAST EARLY TUESDAY AFTERNOON. RESIDENTS IN THE WARNED AREA NEED TO PREPARE FOR THE FOLLOWING THREATS /FOR SPECIFIC INUNDATION HEIGHTS…WIND SPEEDS…AND RAINFALL AMOUNTS EXPECTED FOR YOUR AREA INCLUDING WATCHES AND WARNINGS IN EFFECT…SEE CAETCVAT1 PRODUCT/. * STORM SURGE AND INUNDATION EXTREME STORM SURGE FROM HURRICANE XENA COULD PRODUCE WIDESPREAD INUNDATION IN THE FLOOD ZONE ALONG THE CENTRAL AND SOUTHERN SOUTH CAROLINA COAST… POSSIBLY REACHING SEVERAL MILES INLAND NEAR AND TO THE RIGHT OF WHERE XENA MAKES LANDFALL. SIGNIFICANT LOSS OF STRUCTURES AND STRUCTURAL DAMAGE ON THE BARRIER ISLANDS IS POSSIBLE. MANY LARGE SECTIONS OF NEAR-SHORE ROADS COULD BE WASHED OUT WITH LOW-LYING ESCAPE ROUTES SEVERAL FLOODED. POWERFUL STORM SURGE AND TIDE COULD BREACH SAND DUNES AND SEA WALLS…WITH FLOATING DEBRIS CAUSING ADDITIONAL STRUCTURAL DAMAGE. EXTENSIVE DAMAGE IS EXPECTED TO MARINAS…DOCKS…AND PIERS. IN SOUTH CAROLINA…SEA WATER DEPTHS OF 8 TO 15 FEET ABOVE GROUND ARE POSSIBLE NEAR THE COAST AND ALONG VULERNABLE HARBORS…BAYS…AND TIDAL RIVERS TUESDAY. FURTHER SOUTH ALONG THE GEORGIA COUNTY COAST…THERE IS A POTENTIAL FOR MODERATE COASTAL FLOOD DAMAGE…, etc.
* STORM INFORMATION AT 5 PM EDT...THE CENTER OF HURRICANE XENA WAS LOCATED NEAR LATITUDE 25.3N AND LONGITUDE 76.3W. THIS WAS ABOUT 550 MILES SOUTHEAST OF SAVANNAH GEORGIA ...OR ABOUT 560 MILES SOUTH SOUTHEAST OF CHARLESTON SOUTH CAROLINA. STORM MOTION WAS NW AT 15 MPH. STORM MAXIMUM WIND SPEED WAS 120 MPH. * POTENTIAL IMPACTS HURRICANE XENA IS EXPECTED TO MAKE LANDFALL AS A MAJOR HURRICANE ON THE SOUTHERN SOUTH CAROLINA COAST EARLY TUESDAY AFTERNOON. RESIDENTS IN THE WARNED AREA NEED TO PREPARE FOR THE FOLLOWING THREATS /FOR SPECIFIC INUNDATION HEIGHTS…WIND SPEEDS…AND RAINFALL AMOUNTS EXPECTED FOR YOUR AREA INCLUDING WATCHES AND WARNINGS IN EFFECT…SEE CAETCVAT1 PRODUCT/. * STORM SURGE AND INUNDATION EXTREME STORM SURGE FROM HURRICANE XENA COULD PRODUCE WIDESPREAD INUNDATION IN THE FLOOD ZONE ALONG THE CENTRAL AND SOUTHERN SOUTH CAROLINA COAST… POSSIBLY REACHING SEVERAL MILES INLAND NEAR AND TO THE RIGHT OF WHERE XENA MAKES LANDFALL. SIGNIFICANT LOSS OF STRUCTURES AND STRUCTURAL DAMAGE ON THE BARRIER ISLANDS IS POSSIBLE. MANY LARGE SECTIONS OF NEAR-SHORE ROADS COULD BE WASHED OUT WITH LOW-LYING ESCAPE ROUTES SEVERAL FLOODED. POWERFUL STORM SURGE AND TIDE COULD BREACH SAND DUNES AND SEA WALLS…WITH FLOATING DEBRIS CAUSING ADDITIONAL STRUCTURAL DAMAGE. EXTENSIVE DAMAGE IS EXPECTED TO MARINAS…DOCKS…AND PIERS. IN SOUTH CAROLINA…SEA WATER DEPTHS OF 8 TO 15 FEET ABOVE GROUND ARE POSSIBLE NEAR THE COAST AND ALONG VULERNABLE HARBORS…BAYS…AND TIDAL RIVERS TUESDAY. FURTHER SOUTH ALONG THE GEORGIA COUNTY COAST…THERE IS A POTENTIAL FOR MODERATE COASTAL FLOOD DAMAGE…, etc.
* WIND HIGH WIND IMPACT EXPECTED AS HURRICANE XENA MOVES INTO SOUTH CAROLINA FRIDAY NIGHT. WINDS MAY CAUSE SINGIFICANT DAMAGE TO ROOFING MATERIALS… SLIDING DOORS…FENCES…WINDOWS OF BUILDINGS AND POSSIBLE STRUCTURAL DAMAGE. WINDS OF 85 TO 110 MPH ARE POSSIBLE WITHIN 25 MILES OF WHERE XENA MAKES LANDFALL ALONG THE SOUTH CAROLINA COAST. LOW TO MODERATE WIND IMPACT IS EXPECTED FURTHER WEST OVER INTERIOR GEORGIA. EXPECT DAMAGE TO MOBILE HOMES, etc. * FLASH FLOODING EXPECT SEVERAL INLAND LOCATIONS TO EXPERIENCE MODERATE FRESH WATER FLOODING WITH HIGHEST /FLASH/ FLOOD WATERS CAPABLE OF CAUSING RIVERS AND TRIBUTARIES TO BECOME SWOLLEN AND OVERSPILL THEIR BANKS IN A FEW PLACES…MAINLY IN HISTORICALLY VULNERABLE LOCATIONS…, etc. 8 TO 12 INCHES OF RAIN ARE POSSIBLE WITH LOCALLY HIGHER AMOUNTS. * TORNADOES ISOLATED TORNADOES ARE POSSIBLE AS XENA APPROACHES THE AREA ON TUESDAY. THESE TORNADOES MAY CAUSE DAMAGE TO CHIMNEYS…SCREENED PORCHES… OUTHOUSES…AND LIGHTER-WEIGHT OUTBUILDINGS. TREES…POWERLINES AND LARGE SIGNS MAY BE BLOWN OVER. TORNADOES CAN STRIKE AS FAR AS 200 MILES AWAY FROM WHERE XENA MAKES LANDFALL. && * NEXT UPDATE NEXT LOCAL STATEMENT WILL BE ISSUED BY THE NATIONAL WEATHER SERVICE IN CHARLESTON SOUTH CAROLINA BY 9 PM…OR SOONER IF CONDITIONS WARRANT.
* WIND HIGH WIND IMPACT EXPECTED AS HURRICANE XENA MOVES INTO SOUTH CAROLINA FRIDAY NIGHT. WINDS MAY CAUSE SINGIFICANT DAMAGE TO ROOFING MATERIALS… SLIDING DOORS…FENCES…WINDOWS OF BUILDINGS AND POSSIBLE STRUCTURAL DAMAGE. WINDS OF 85 TO 110 MPH ARE POSSIBLE WITHIN 25 MILES OF WHERE XENA MAKES LANDFALL ALONG THE SOUTH CAROLINA COAST. LOW TO MODERATE WIND IMPACT IS EXPECTED FURTHER WEST OVER INTERIOR GEORGIA. EXPECT DAMAGE TO MOBILE HOMES, etc. * FLASH FLOODING EXPECT SEVERAL INLAND LOCATIONS TO EXPERIENCE MODERATE FRESH WATER FLOODING WITH HIGHEST /FLASH/ FLOOD WATERS CAPABLE OF CAUSING RIVERS AND TRIBUTARIES TO BECOME SWOLLEN AND OVERSPILL THEIR BANKS IN A FEW PLACES…MAINLY IN HISTORICALLY VULNERABLE LOCATIONS…, etc. 8 TO 12 INCHES OF RAIN ARE POSSIBLE WITH LOCALLY HIGHER AMOUNTS. * TORNADOES ISOLATED TORNADOES ARE POSSIBLE AS XENA APPROACHES THE AREA ON TUESDAY. THESE TORNADOES MAY CAUSE DAMAGE TO CHIMNEYS…SCREENED PORCHES… OUTHOUSES…AND LIGHTER-WEIGHT OUTBUILDINGS. TREES…POWERLINES AND LARGE SIGNS MAY BE BLOWN OVER. TORNADOES CAN STRIKE AS FAR AS 200 MILES AWAY FROM WHERE XENA MAKES LANDFALL. && * NEXT UPDATE NEXT LOCAL STATEMENT WILL BE ISSUED BY THE NATIONAL WEATHER SERVICE IN CHARLESTON SOUTH CAROLINA BY 9 PM…OR SOONER IF CONDITIONS WARRANT.
