| HOME | ARCHIVES | FORECASTS | IMAGERY | ABOUT NHC | RECONNAISSANCE |

Hurricane HARVEY (Text)


ZCZC MIATCMAT4 ALL
TTAA00 KNHC DDHHMM

HURRICANE HARVEY FORECAST/ADVISORY NUMBER  23
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092017
0300 UTC SAT AUG 26 2017

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A STORM SURGE WARNING IS IN EFFECT FOR...
* PORT MANSFIELD TO HIGH ISLAND TEXAS

A HURRICANE WARNING IS IN EFFECT FOR...
* PORT MANSFIELD TO SARGENT TEXAS

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* NORTH OF SARGENT TO HIGH ISLAND TEXAS

A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING
INUNDATION FROM RISING WATER MOVING INLAND FROM THE COASTLINE IN THE
INDICATED LOCATIONS. FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE
THE NATIONAL WEATHER SERVICE STORM SURGE WATCH/WARNING GRAPHIC...
AVAILABLE AT HURRICANES.GOV.  THIS IS A LIFE-THREATENING SITUATION.

A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA... IN THIS CASE WITHIN THE NEXT
FEW HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD ALREADY
BE COMPLETE.

INTERESTS IN SOUTHWESTERN LOUISIANA SHOULD CONTINUE TO MONITOR THE
PROGRESS OF THIS SYSTEM.

HURRICANE CENTER LOCATED NEAR 28.0N  97.0W AT 26/0300Z...ON COAST
POSITION ACCURATE WITHIN  10 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 325 DEGREES AT   6 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  938 MB
EYE DIAMETER  15 NM
MAX SUSTAINED WINDS 115 KT WITH GUSTS TO 140 KT.
64 KT....... 35NE  25SE  20SW  25NW.
50 KT....... 60NE  40SE  40SW  40NW.
34 KT.......120NE  90SE  80SW  70NW.
12 FT SEAS..210NE 180SE  90SW   0NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 28.0N  97.0W AT 26/0300Z
AT 26/0000Z CENTER WAS LOCATED NEAR 27.8N  96.8W...ON COAST

FORECAST VALID 26/1200Z 28.6N  97.3W...INLAND
MAX WIND  95 KT...GUSTS 115 KT.
64 KT... 25NE  20SE  15SW  20NW.
50 KT... 40NE  50SE  30SW  30NW.
34 KT...120NE 100SE  70SW  70NW.

FORECAST VALID 27/0000Z 29.0N  97.7W...INLAND
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 15NE  15SE  15SW  15NW.
50 KT... 30NE  30SE  30SW  30NW.
34 KT... 90NE 100SE  60SW  60NW.

FORECAST VALID 27/1200Z 29.0N  97.9W...INLAND
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  20SE  20SW  20NW.
34 KT... 60NE  80SE  50SW  50NW.

FORECAST VALID 28/0000Z 28.7N  97.8W...INLAND
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 60NE  70SE  50SW  50NW.

FORECAST VALID 29/0000Z 28.0N  97.5W...INLAND
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 60NE  60SE  40SW  40NW.

EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY

OUTLOOK VALID 30/0000Z 28.5N  96.5W...INLAND
MAX WIND  40 KT...GUSTS  50 KT.

OUTLOOK VALID 31/0000Z 29.5N  96.0W...INLAND
MAX WIND  35 KT...GUSTS  45 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 28.0N  97.0W

NEXT ADVISORY AT 26/0900Z

$$
FORECASTER BEVEN


NNNN

Standard version of this page

Alternate Formats
About Alternates - E-Mail Advisories - RSS Feeds

Cyclone Forecasts
Latest Advisory - Past Advisories - About Advisories

Marine Forecasts
Latest Products - About Marine Products

Tools & Data
Satellite Imagery - US Weather Radar - Aircraft Recon - Local Data Archive - Forecast Verification - Deadliest/Costliest/Most Intense

Learn About Hurricanes
Storm Names Wind Scale - Prepare - Climatology - NHC Glossary - NHC Acronyms - Frequently Asked Questions - AOML Hurricane-Research Division

About Us
About NHC - Mission/Vision - Other NCEP Centers - NHC Staff - Visitor Information - NHC Library

Contact Us


NOAA/ National Weather Service
National Centers for Environmental Prediction
National Hurricane Center
11691 SW 17th Street
Miami, Florida, 33165-2149 USA
nhcwebmaster@noaa.gov
Disclaimer
Privacy Policy
Credits
About Us
Glossary
Career Opportunities
Page last modified: Sunday, 31-Dec-2017 12:09:15 UTC