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Wtpa33 Phfo 292057

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Hurricane Ignacio Advisory Number 20

Nws Central Pacific Hurricane Center Honolulu Hi Ep122015

1100 Am Hst Sat Aug 29 2015
…Reconnaissance Aircraft Finds Ignacio A Category Four

Hurricane…

Summary Of 1100 Am Hst…2100 Utc…Information

———————————————–

Location…16.4n 146.9w

About 585 Mi…940 Km Ese Of Hilo Hawaii

About 795 Mi…1280 Km Ese Of Honolulu Hawaii

Maximum Sustained Winds…140 Mph…220 Km/H

Present Movement…Nw Or 315 Degrees At 9 Mph…15 Km/H

Minimum Central Pressure…951 Mb…28.08 Inches

Watches And Warnings

——————–

Changes With This Advisory…
None.
Summary Of Watches And Warnings In Effect…
A Tropical Storm Watch Is In Effect For…

* Hawaii County
A Tropical Storm Watch Means That Tropical Storm Conditions Are

Possible Within The Watch Area…Generally Within 48 Hours.
Interests Elsewhere In The Main Hawaiian Islands Should Continue To

Closely Monitor The Progress Of Ignacio. Watches May Be Required

For Additional Islands Later Today Or Tonight.
For Storm Information Specific To Your Area…Please Monitor

Products Issued By The National Weather Service Office In

Honolulu Hawaii.

Discussion And 48-Hour Outlook

——————————

At 1100 Am Hst…2100 Utc…The Eye Of Hurricane Ignacio Was

Located By U.s. Air Force Reserve Reconnaissance Aircraft Near

Latitude 16.4 North…Longitude 146.9 West. Ignacio Is Moving Toward

The Northwest Near 9 Mph…15 Km/H…And This Motion Is Expected To

Continue For The Next Couple Of Days. On The Forecast Track…

Ignacio Will Be Passing Northeast Of The Big Island On Monday.
Maximum Sustained Winds Are Near 140 Mph…220 Km/H…With Higher

Gusts. Ignacio Is A Category Four Hurricane On The Saffir-Simpson

Hurricane Wind Scale. Some Additional Strengthening Is Still

Possible Today Before A Weakening Trend Begins.
Hurricane Force Winds Extend Outward Up To 30 Miles…45 Km…From

The Center…And Tropical Storm Force Winds Extend Outward Up To 140

Miles…220 Km.
The Estimated Minimum Central Pressure Is 951 Mb…28.08 Inches.

Hazards Affecting Land

———————-

Wind…Tropical Storm Conditions Are Possible On The Big Island Of

Hawaii Starting Sunday Night.
Rainfall…Total Rainfall Amounts Of 2 To 4 Inches…With Isolated

Maximum Amounts Near 6 Inches Mainly In Areas Of Higher Terrain…

Are Possible In The Watch Area.
Surf…Large Swells Generated By Ignacio Will Arrive Along East

And Southeast Facing Shores Of The Main Hawaiian Islands Over The

Next Several Days. Resultant Surf Will Be Large And Potentially

Life-Threatening…Especially On The Big Island Later This Weekend

And Early Next Week.

Next Advisory

————-

Next Intermediate Advisory…200 Pm Hst.

Next Complete Advisory…500 Pm Hst.
$$

Forecaster R Ballard
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