Alert archive / Northern Mariana Islands / Rip Current Statements in 2023

Rip Current Statement 14, NWS Guam

May 24, 2023

NWS Guam issued this rip current statement at May 24, 2023, 1:28 PM CDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued
May 24, 2023, 1:28 PM CDT (18:28 UTC)
Expired
May 28, 2023, 8:16 PM CDT
In force
4 days
Issued by
NWS Guam

The text

As transmitted.

336 
WHMY40 PGUM 241828
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
428 AM ChST Thu May 25 2023

MPZ002-003-250830-
/O.NEW.PGUM.SU.W.0003.230524T1828Z-230526T0000Z/
/O.NEW.PGUM.RP.S.0014.230524T1828Z-230526T0000Z/
/O.CON.PGUM.CF.W.0002.000000T0000Z-230525T0800Z/
Tinian-Saipan-
428 AM ChST Thu May 25 2023

...HIGH SURF WARNING IN EFFECT UNTIL 10 AM CHST FRIDAY FOR SOUTH
FACING REEFS...

...HIGH RISK OF RIP CURRENTS THROUGH FRIDAY MORNING FOR SOUTH FACING 
REEFS...

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM TONIGHT...

* WHAT...For the Coastal Flood Warning, significant coastal 
  flooding. For the High Surf Warning, dangerously large 
  breaking waves of 12 to 16 feet in the surf zone. For the High 
  Rip Current Risk, dangerous rip currents.

* WHERE...Tinian and Saipan islands.

* WHEN...For the Coastal Flood Warning, until 6 PM ChST this 
  evening. For the High Surf Warning, until 10 AM ChST Friday. 
  For the High Rip Current Risk, through Friday morning.

* IMPACTS...Numerous roads may be closed. Low lying property 
  including homes, businesses, and some critical infrastructure 
  will be inundated. Some shoreline erosion will occur. Breaking 
  waves can sweep people off jetties and docks, and into 
  dangerous seas. Life-threatening swimming conditions and 
  significant beach erosion can be expected. Rip currents can 
  sweep even the best swimmers away from shore into deeper water.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

&&

$$

GUZ001-MPZ001-250800-
/O.CON.PGUM.CF.W.0002.000000T0000Z-230525T0800Z/
Guam-Rota-
428 AM ChST Thu May 25 2023

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM CHST
THURSDAY...

A Coastal Flood Warning remains in effect for the Guam and Rota due 
to Mawar. See the latest Local Statement for specific 
information for each island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

&&

$$
10 follow-up statements
281 
WHMY40 PGUM 242311
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
911 AM ChST Thu May 25 2023

MPZ002-003-250900-
/O.CAN.PGUM.SU.W.0003.000000T0000Z-230526T0000Z/
/O.EXT.PGUM.SU.W.0004.000000T0000Z-230526T0800Z/
/O.EXT.PGUM.RP.S.0014.000000T0000Z-230526T0800Z/
/O.CON.PGUM.CF.W.0002.000000T0000Z-230525T0800Z/
Tinian-Saipan-
911 AM ChST Thu May 25 2023

...HIGH SURF WARNING NOW IN EFFECT UNTIL 6 FRIDAY ALONG SOUTH
AND WEST FACING REEFS...

...HIGH RISK OF RIP CURRENTS THROUGH FRIDAY AFTERNOON...

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM THIS
EVENING...

* WHAT...High Surf Warning, dangerously large breaking waves of 
  10 to 15 feet in the surf zone along south and west facing 
  reefs. Expect life-threatening rip currents. For the Coastal 
  Flood Warning, significant coastal flooding and erosion is 
  likely due to high surf from Mawar. 

* WHERE...Saipan and Tinian.

* WHEN...For the High Surf Warning and High Rip Current Risk, 
  until 6 PM Friday. For the Coastal Flood Warning, until 6 PM 
  this evening.

* IMPACTS...Breaking waves can sweep people off jetties and 
  docks, and into dangerous seas. Life-threatening swimming 
  conditions and significant beach erosion can be expected. 
  Rip currents can sweep even the best swimmers away from shore 
  into deeper water. Shoreline erosion will occur along with the
  possibility of inundation for coastal properties. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Stay out of the water. 

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of piers and other waterside
infrastructure.

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

&&

$$

GUZ001-MPZ001-250800-
/O.CON.PGUM.CF.W.0002.000000T0000Z-230525T0800Z/
Guam-Rota-
911 AM ChST Thu May 25 2023

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM THIS
EVENING...

A Coastal Flood Warning remains in effect for the Guam and Rota due 
to Mawar. See the latest Local Statement for specific 
information for each island.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

&&

$$

BPB
429 
WHMY40 PGUM 250210
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
1210 PM ChST Thu May 25 2023

GUZ001-MPZ001-251615-
/O.CAN.PGUM.CF.W.0002.000000T0000Z-230525T0800Z/
/O.EXA.PGUM.SU.W.0004.000000T0000Z-230526T0800Z/
/O.EXA.PGUM.RP.S.0014.000000T0000Z-230526T0800Z/
Guam-Rota-
1210 PM ChST Thu May 25 2023

...HIGH SURF WARNING IN EFFECT UNTIL 6 PM CHST FRIDAY...
...HIGH RISK OF RIP CURRENTS THROUGH FRIDAY AFTERNOON...
...COASTAL FLOOD WARNING IS CANCELLED...

* WHAT...High Surf Warning, dangerously large breaking waves of 10
  to 15 feet in the surf zone along south and west facing reefs.
  Expect life-threatening rip currents. 

* WHERE...Guam and Rota Counties.

* WHEN...For the High Surf Warning, until 6 PM ChST Friday. For 
  the High Rip Current Risk, through Friday afternoon.

* IMPACTS...Breaking waves can sweep people off jetties and 
  docks, and into dangerous seas. Life-threatening swimming 
  conditions and significant beach erosion can be expected. Rip 
  currents can sweep even the best swimmers away from shore into 
  deeper water. Shoreline erosion will occur along with the 
  possibility of inundation for coastal properties.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

MPZ002-003-251615-
/O.CAN.PGUM.CF.W.0002.000000T0000Z-230525T0800Z/
/O.CON.PGUM.SU.W.0004.000000T0000Z-230526T0800Z/
/O.CON.PGUM.RP.S.0014.000000T0000Z-230526T0800Z/
Tinian-Saipan-
1210 PM ChST Thu May 25 2023

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST FRIDAY...
...HIGH RISK OF RIP CURRENTS THROUGH FRIDAY
AFTERNOON...
...COASTAL FLOOD WARNING IS CANCELLED...

* WHAT...High Surf Warning, dangerously large breaking waves of 10
  to 15 feet in the surf zone along south and west facing reefs.
  Expect life-threatening rip currents. 

* WHERE...Tinian and Saipan Counties.

* WHEN...For the High Surf Warning, until 6 PM ChST Friday. For 
  the High Rip Current Risk, through Friday afternoon.

* IMPACTS...Breaking waves can sweep people off jetties and 
  docks, and into dangerous seas. Life-threatening swimming 
  conditions and significant beach erosion can be expected. Rip 
  currents can sweep even the best swimmers away from shore into 
  deeper water. Shoreline erosion will occur along with the 
  possibility of inundation for coastal properties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
944 
WHMY40 PGUM 251837
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
437 AM ChST Fri May 26 2023

GUZ001-MPZ001>003-260845-
/O.EXT.PGUM.SU.W.0004.000000T0000Z-230527T0800Z/
/O.EXT.PGUM.RP.S.0014.000000T0000Z-230527T0800Z/
Guam-Rota-Tinian-Saipan-
437 AM ChST Fri May 26 2023

...HIGH SURF WARNING NOW IN EFFECT UNTIL 6 PM CHST SATURDAY...
...HIGH RISK OF RIP CURRENTS THROUGH SATURDAY AFTERNOON...

* WHAT...High Surf Warning, dangerously large breaking waves of 
  10 to 15 feet in the surf zone along south and west facing reefs. 
  While surf along south facing exposures will gradually diminish today, 
  Super Typhoon Mawar will continue to send large westerly swells 
  toward the islands, which could produce life-threatening rip currents.

* WHERE...Guam, Rota, Tinian, and Saipan.

* WHEN...Until 6 PM ChST Saturday. 

* IMPACTS...Breaking waves can sweep people off jetties and 
  docks, and into dangerous seas. Life-threatening swimming 
  conditions can be expected. Rip currents can sweep even the 
  best swimmers away from shore into deeper water. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

If caught in a rip current, relax and float. Don't swim against
the current. If able, swim in a direction following the
shoreline. If unable to escape, face the shore and call or wave
for help.

&&

$$

Birchard
292 
WHMY40 PGUM 260836
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
636 PM ChST Fri May 26 2023

GUZ001-MPZ001>003-262245-
/O.CON.PGUM.SU.W.0004.000000T0000Z-230527T0800Z/
/O.CON.PGUM.RP.S.0014.000000T0000Z-230527T0800Z/
Guam-Rota-Tinian-Saipan-
636 PM ChST Fri May 26 2023

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 PM CHST SATURDAY...
...HIGH RISK OF RIP CURRENTS THROUGH SATURDAY
AFTERNOON...

* WHAT...High Surf Warning, dangerously large breaking waves of 10
  to 15 feet in the surf zone along south and west facing reefs.
  While surf along south facing exposures will gradually diminish
  tonight, Super Typhoon Mawar will continue to send large 
  westerly swells toward the islands, which could produce life-
  threatening rip currents.

* WHERE...Guam, Rota, Tinian, and Saipan.

* WHEN...Until 6 PM ChST Saturday.

* IMPACTS...Breaking waves can sweep people off jetties and 
  docks, and into dangerous seas. Life-threatening swimming 
  conditions can be expected. Rip currents can sweep even the 
  best swimmers away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
783 
WHMY40 PGUM 261810
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
410 AM ChST Sat May 27 2023

GUZ001-MPZ001>003-270815-
/O.CAN.PGUM.SU.W.0004.000000T0000Z-230527T0800Z/
/O.NEW.PGUM.SU.Y.0032.230526T2300Z-230528T0800Z/
/O.EXT.PGUM.RP.S.0014.000000T0000Z-230528T0800Z/
Guam-Rota-Tinian-Saipan-
410 AM ChST Sat May 27 2023

...HIGH RISK OF RIP CURRENTS THROUGH SUNDAY AFTERNOON...
...HIGH SURF ADVISORY IN EFFECT THROUGH 6 PM CHST SUNDAY...
...HIGH SURF WARNING IS CANCELLED...

* WHAT...For the High Surf Advisory, large breaking waves of 9 to
  11 feet expected along west facing reefs and up to 9 feet along
  exposed south and north facing reefs. For the High Rip Current 
  Risk, dangerous rip currents.

* WHERE...Guam, Rota, Tinian and Saipan Counties.

* WHEN...For the High Surf Advisory, from 9 AM this morning to 6 
  PM ChST Sunday. For the High Rip Current Risk, through Sunday 
  afternoon.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Large west swells will decline slightly
  SUnday and Monday but expected continued westerly swell through
  much of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
204 
WHMY40 PGUM 270718
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
518 PM ChST Sat May 27 2023

GUZ001-MPZ001>003-272130-
/O.CON.PGUM.SU.Y.0032.000000T0000Z-230528T0800Z/
/O.CON.PGUM.RP.S.0014.000000T0000Z-230528T0800Z/
Guam-Rota-Tinian-Saipan-
518 PM ChST Sat May 27 2023

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM CHST SUNDAY...
...HIGH RISK OF RIP CURRENTS THROUGH SUNDAY AFTERNOON...

* WHAT...Large breaking waves of 9 to 12 feet expected along west
  facing reefs and dangerous rip currents.

* WHERE...West facing reefs of Guam, Rota, Tinian and Saipan.

* WHEN...Through 6 PM ChST Sunday afternoon.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Large west swells will decline slightly 
  Sunday night and Monday but expected continued westerly swell 
  through much of the week. The high surf advisory may need to be
  extended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

Stanko
053 
WHMY40 PGUM 271726
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
326 AM ChST Sun May 28 2023

GUZ001-MPZ001>003-280730-
/O.EXT.PGUM.SU.Y.0032.000000T0000Z-230529T0800Z/
/O.EXT.PGUM.RP.S.0014.000000T0000Z-230529T0800Z/
Guam-Rota-Tinian-Saipan-
326 AM ChST Sun May 28 2023

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 PM CHST MONDAY...
...HIGH RISK OF RIP CURRENTS THROUGH MONDAY AFTERNOON...

* WHAT...Large breaking waves of 9 to 12 feet expected along 
  west facing reefs and dangerous rip currents.

* WHERE...West facing reefs of Guam, Rota, Tinian and Saipan.

* WHEN...For the High Surf Advisory, until 6 PM ChST Monday. For 
  the High Rip Current Risk, through Monday afternoon.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Large west swells will decline slightly 
  Sunday night and Monday but expected continued westerly swell 
  through much of the week. The high surf advisory may need to 
  be extended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
860 
WHMY40 PGUM 280343
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
143 PM ChST Sun May 28 2023

GUZ001-MPZ001>003-290345-
/O.CON.PGUM.SU.Y.0032.000000T0000Z-230529T0800Z/
/O.CON.PGUM.RP.S.0014.000000T0000Z-230529T0800Z/
Guam-Rota-Tinian-Saipan-
143 PM ChST Sun May 28 2023

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM CHST MONDAY...
...HIGH RISK OF RIP CURRENTS THROUGH MONDAY AFTERNOON...

* WHAT...Large breaking waves of 7 to 9 feet and dangerous rip
  currents expected along west facing reefs.

* WHERE...West facing reefs of Guam, Rota, Tinian and Saipan.

* WHEN...For the High Surf Advisory, until 6 PM ChST Monday. For 
  the High Rip Current Risk, through Monday afternoon.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Large west swells will decline slightly 
  Sunday night and Monday but expected continued westerly swell 
  through much of the week. The high surf advisory may need to 
  be extended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

Slagle
760 
WHMY40 PGUM 281906
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
506 AM ChST Mon May 29 2023

GUZ001-MPZ001>003-290800-
/O.CON.PGUM.SU.Y.0032.000000T0000Z-230529T0800Z/
/O.CON.PGUM.RP.S.0014.000000T0000Z-230529T0800Z/
Guam-Rota-Tinian-Saipan-
506 AM ChST Mon May 29 2023

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM THIS EVENING...
...HIGH RISK OF RIP CURRENTS THROUGH THIS AFTERNOON...

* WHAT...Large breaking waves of 7 to 9 feet and dangerous rip
  currents expected along west facing reefs.

* WHERE...West facing reefs of Guam, Rota, Tinian and Saipan.

* WHEN...Until 6 PM Monday afternoon.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Large west swells will decline slightly tonight
  allowing the risk of rip currents to become moderate. The risk will
  increase agian Tuesday night to high, then remain high the rest of
  the week, with surf also becoming hazardous once again.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

Stanko
041 
WHMY40 PGUM 290116
CFWGUM

Coastal Hazard Message
National Weather Service Tiyan GU
Issued by National Weather Service Honolulu HI
1116 AM ChST Mon May 29 2023

GUZ001-MPZ001>003-290230-
/O.CAN.PGUM.SU.Y.0032.000000T0000Z-230529T0800Z/
/O.CAN.PGUM.RP.S.0014.000000T0000Z-230529T0800Z/
Guam-Rota-Tinian-Saipan-
1116 AM ChST Mon May 29 2023

...HIGH SURF ADVISORY IS CANCELLED...
...HIGH RIP CURRENT RISK IS CANCELLED...

Surf along west-facing reefs has diminished and has fallen
below hazardous levels. A moderate risk for rip currents will
persist however. Hazardous surf could return by around Wednesday 
as a long-period west to northwest swell emanating from Typhoon 
Mawar reaches the Marianas.

$$

Slagle

The office that day

Everything else NWS Guam issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 1:28 PM CDTHigh Surf WarningGUM5 hr
May 24, 1:28 PM CDTHigh Surf WarningGUM48 hr
May 24, 2:25 PM CDTSmall Craft AdvisoryGUM47 hr
May 24, 5:20 PM CDTWind AdvisoryGUM6 hr
May 24, 12:01 AM CDTFlash Flood Warning Considerable damage threatGUM17 hr
May 24, 2:22 AM CDTExtreme Wind WarningGUM83 min
May 24, 3:34 AM CDTExtreme Wind WarningGUM86 min
May 24, 5:42 AM CDTExtreme Wind WarningGUM2 hr
May 24, 5:42 AM CDTExtreme Wind WarningGUM2 hr

Nearby

Rip Current Statements in Northern Mariana Islands, 2023Rip Current Statements in Guam, 2023Every rip current statement in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.