Alert archive / Puerto Rico / Flash Flood Warnings in 2018

Flash Flood Warning 15, NWS JSJ

October 23, 2018

NWS JSJ issued this flash flood warning at Oct 23, 2018, 3:19 PM CDT. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 23, 2018, 3:19 PM CDT (20:19 UTC)
Expired: Oct 23, 2018, 6:15 PM CDT
In force: 3 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

The radar

The San Juan radar (TJUA), 66 km from the middle of the area, began a volume at 20:21 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.

369 
WGCA52 TJSJ 232019
FFWSJU
PRC141-232315-
/O.NEW.TJSJ.FF.W.0015.181023T2019Z-181023T2315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service San Juan PR
419 PM AST TUE OCT 23 2018

The National Weather Service in San Juan has issued a

* Flash Flood Warning for...
  Utuado Municipality in Puerto Rico...

* Until 715 PM AST

* At 414 PM AST, emergency management officials reported heavy rain 
  producing mudslides and flooding along road 23 and KM 55 in Salto 
  Arriba area and road 523 KM 1 in Barrio Arena. Up to four inches 
  of rain have already fallen. Flash flooding is already occurring.

* Some locations that will experience flooding include...
  Utuado and Cayuco. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.


&&

LAT...LON 1833 6672 1832 6658 1830 6657 1828 6658
      1828 6660 1824 6661 1825 6662 1824 6663
      1816 6665 1815 6668 1817 6667 1822 6670
      1822 6676 1825 6678 1823 6682 1832 6682
      1832 6677 1834 6675

$$

TW/CAM

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Oct 23, 1:32 PM CDT	Areal Flood Advisory	JSJ	3 hr
Oct 23, 1:38 PM CDT	Areal Flood Advisory	JSJ	112 min
Oct 23, 1:46 PM CDT	Areal Flood Advisory	JSJ	103 min
Oct 23, 2:43 PM CDT	Areal Flood Advisory	JSJ	115 min
Oct 23, 2:48 PM CDT	Areal Flood Advisory	JSJ	3 hr
Oct 23, 3:47 PM CDT	Areal Flood Advisory	JSJ	118 min
Oct 23, 4:25 PM CDT	Areal Flood Advisory	JSJ	110 min
Oct 23, 6:22 PM CDT	Areal Flood Advisory	JSJ	3 hr
Oct 23, 6:55 PM CDT	Areal Flood Advisory	JSJ	3 hr

Nearby

Flash Flood Warnings in Puerto Rico, 2018 Every flash flood warning in 2018

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.