Alert archive / Puerto Rico / Areal Flood Advisories in 2021

Areal Flood Advisory 310, NWS JSJ

September 15, 2021

NWS JSJ issued this areal flood advisory at Sep 15, 2021, 4:50 PM CDT. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Sep 15, 2021, 4:50 PM CDT (21:50 UTC)
Expired
Sep 15, 2021, 7:23 PM CDT
In force
3 hr
Issued by
NWS JSJ
Area
Storm-based polygon

The radar

The San Juan radar (TJUA), 73 km from the middle of the area, began a volume at 21:50 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The text

As transmitted.

969 
WGCA82 TJSJ 152150
FLSSJU

Flood Advisory
National Weather Service San Juan PR
550 PM AST Wed Sep 15 2021

PRC013-065-160100-
/O.NEW.TJSJ.FA.Y.0310.210915T2150Z-210916T0100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Arecibo PR-Hatillo PR-
550 PM AST Wed Sep 15 2021

The National Weather Service in San Juan has issued a

* Flood Advisory for...
  Arecibo in Puerto Rico...
  Hatillo in Puerto Rico...

* Until 900 PM AST.

* At 550 PM AST, Doppler radar indicated heavy rain due to 
  thunderstorms. Minor flooding is already occurring in the advisory 
  area. Up to 1 inch of rain has fallen.

Additional rainfall amounts up to 1 inch are expected over the area. 
This additional rain will result in minor flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 1849 6684 1849 6680 1848 6675 1847 6671
      1848 6670 1849 6664 1849 6658 1848 6659
      1847 6659 1847 6658 1840 6659 1837 6658
      1834 6659 1833 6661 1832 6671 1834 6672
      1835 6673 1832 6677 1832 6683 1839 6681

$$

CAM
1 follow-up statement
860 
WGCA82 TJSJ 160023
FLSSJU

Flood Advisory
National Weather Service San Juan PR
823 PM AST Wed Sep 15 2021

PRC013-065-160033-
/O.CAN.TJSJ.FA.Y.0310.000000T0000Z-210916T0100Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Arecibo PR-Hatillo PR-
823 PM AST Wed Sep 15 2021

...FLOOD ADVISORY IS CANCELLED FOR ARECIBO AND HATILLO...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 1849 6684 1849 6680 1848 6675 1847 6671
      1848 6670 1849 6664 1849 6658 1848 6659
      1847 6659 1847 6658 1840 6659 1837 6658
      1834 6659 1833 6661 1832 6671 1834 6672
      1835 6673 1832 6677 1832 6683 1839 6681

$$

CAM

The office that day

Everything else NWS JSJ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 14, 11:01 PM CDTSpecial Weather StatementJSJ29 min
Sep 15, 5:19 AM CDTSpecial Marine WarningJSJ41 min
Sep 15, 11:50 AM CDTAreal Flood AdvisoryJSJ109 min
Sep 15, 1:08 PM CDTSpecial Weather StatementJSJ82 min
Sep 15, 3:13 PM CDTAreal Flood AdvisoryJSJ3 hr
Sep 15, 3:33 PM CDTSpecial Marine WarningJSJ42 min

Nearby

Areal Flood Advisories in Puerto Rico, 2021Every areal flood advisory in 2021

Sources

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