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HURRICANE HARVEY FORECAST/ADVISORY NUMBER  22
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092017
2100 UTC FRI AUG 25 2017

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED SOUTH OF PORT
MANSFIELD...TEXAS.

THE STORM SURGE WATCH HAS BEEN DISCONTINUED SOUTH OF PORT
MANSFIELD...TEXAS.

THE GOVERNMENT OF MEXICO HAS DISCONTINUED THE TROPICAL STORM WATCH
NORTH OF BOCA DE CATAN.

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 27.5N  96.5W AT 25/2100Z
POSITION ACCURATE WITHIN  10 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 325 DEGREES AT   9 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  941 MB
EYE DIAMETER  15 NM
MAX SUSTAINED WINDS 110 KT WITH GUSTS TO 135 KT.
64 KT....... 30NE  25SE  20SW  25NW.
50 KT....... 50NE  40SE  40SW  40NW.
34 KT.......120NE  90SE  80SW 100NW.
12 FT SEAS..210NE 180SE  90SW  60NW.
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 27.5N  96.5W AT 25/2100Z
AT 25/1800Z CENTER WAS LOCATED NEAR 27.1N  96.3W

FORECAST VALID 26/0600Z 28.2N  97.0W...INLAND
MAX WIND 100 KT...GUSTS 120 KT.
64 KT... 30NE  25SE  15SW  20NW.
50 KT... 50NE  50SE  40SW  40NW.
34 KT...120NE 100SE  80SW 100NW.

FORECAST VALID 26/1800Z 28.8N  97.5W...INLAND
MAX WIND  75 KT...GUSTS  90 KT.
64 KT... 20NE  20SE  15SW  15NW.
50 KT... 40NE  40SE  30SW  30NW.
34 KT...100NE 100SE  80SW  90NW.

FORECAST VALID 27/0600Z 28.9N  97.8W...INLAND
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 30NE  30SE  30SW  30NW.
34 KT... 80NE  80SE  70SW  80NW.

FORECAST VALID 27/1800Z 28.6N  97.8W...INLAND
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  30SE  20SW  20NW.
34 KT... 70NE  70SE  50SW  60NW.

FORECAST VALID 28/1800Z 28.1N  96.9W...INLAND
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 60NE  50SE  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 29/1800Z 28.5N  96.0W...OVER WATER
MAX WIND  40 KT...GUSTS  50 KT.

OUTLOOK VALID 30/1800Z 29.5N  95.5W...INLAND
MAX WIND  35 KT...GUSTS  45 KT.

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 27.5N  96.5W

NEXT ADVISORY AT 26/0300Z

$$
FORECASTER BERG


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