Alert archive / Puerto Rico / Flash Flood Warnings in 2007

Flash Flood Warning 18, NWS JSJ

April 22, 2007

NWS JSJ issued this flash flood warning at Apr 22, 2007, 7:56 PM CDT. It was in force for 188 days. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 22, 2007, 7:56 PM CDT (00:56 UTC)
Expired: Oct 27, 2007, 9:00 AM CDT
In force: 188 days
Issued by: NWS JSJ
Area: Counties, with a storm outline in the text
Flood severity: None

The radar

The San Juan radar (TJUA), 10 km from the middle of the area, began a volume at 00:56 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.

What was reported inside it

Time	Report	Where	Remark
Oct 26, 11:40 PM CDT	FLASH FLOOD	2 Ese Yabucoa, PR	HIGHWAY 901 AND QUEBRADA IN CAMINO NUEVO FLOODED.
Oct 26, 11:40 PM CDT	FLASH FLOOD	Yabucoa, PR	BARRIO CALABASA FLOODED

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGCA52 TJSJ 230059
FFWSJU
PRC103-230300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
856 PM AST SUN APR 22 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...

  IN PUERTO RICO
     NAGUABO

* UNTIL 1100 PM AST

* AT 850 PM AST...EMERGENCY MANAGEMENT OFFICIALS REPORT THAT THE 
AREA NEAR THE INTERSECTION BETWEEN HIGHWAYS 31 AND 53 IS STILL 
FLOODED BY RIO BLANCO.

* WATER LEVELS AT RIVER SENSORS ARE SUBSIDING ELSEWHERE...BUT THE 
FLASH FLOOD WARNING IS BEING EXTENDED UNTIL 11 PM FOR THESE LOCAL 
CONDITIONS. ONLY LIGHT SHOWERS ARE EXPECTED IN THIS AREA BEFORE 11 
PM AST.

THIS FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING. DO NOT 
ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH 
BY FOOT OR BY AUTOMOBILE.

LAT...LON 1824 6570 1819 6574 1821 6581 1826 6582

$$

SNELL

1 follow-up statement

000 
WGCA52 TJSJ 271156
FFWSJU
PRC015-025-035-041-057-069-085-095-109-123-129-133-151-271400-
/O.NEW.TJSJ.FF.W.0018.071027T1154Z-071027T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
754 AM AST SAT OCT 27 2007

THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE FOLLOWING MUNICIPALITIES

  IN PUERTO RICO
     CAGUAS
     CIDRA
     CAYEY
     SAN LORENZO
     LAS PIEDRAS
     ARROYO
     PATILLAS
     MAUNABO
     GUAYAMA
     HUMACAO
     SALINAS
     SANTA ISABEL
     YABUCOA

* UNTIL 1000 AM AST

* AT 7:49 AM AST...NWS DOPPLER RADAR INDICATED NUMEROUS SHOWERS AND  
  THUNDERSTORMS SPREAD ACROSS THE LOCAL CARIBBEAN WATERS POISED TO   
  MOVE NORTHWEST AND ASHORE ACROSS MUCH OF SOUTHEAST AND EASTERN     
  INTERIOR PUERTO RICO DURING THE NEXT HOUR. THIS RAINFALL IS        
  EXPECTED TO INDUCE FLASH FLOODING AND MUDSLIDES OVER THE           
  WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS AND STREAMS...ROADS...AS WELL AS LAND ALONG THE BANKS OF 
CREEKS AND STREAMS.

LAT...LON 1802 6633 1807 6622 1819 6619 1822 6607
      1812 6578 1792 6590 1793 6600 1790 6603
      1792 6634
TIME...MOT...LOC 1154Z 180DEG 0KT 1802 6603

$$

The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Apr 22, 7:20 PM CDT	Flash Flood Warning	JSJ	187 days
Apr 22, 7:20 PM CDT	Flash Flood Warning	JSJ	187 days
Apr 22, 7:56 PM CDT	Flash Flood Warning	JSJ	187 days
Apr 22, 9:09 PM CDT	Flash Flood Warning	JSJ	188 days
Apr 22, 9:09 PM CDT	Flash Flood Warning	JSJ	188 days
Apr 22, 10:20 PM CDT	Flash Flood Watch	JSJ	54 hr
Apr 22, 11:12 PM CDT	Flash Flood Warning	JSJ	188 days
Apr 22, 11:12 PM CDT	Flash Flood Warning	JSJ	188 days
Apr 23, 1:18 AM CDT	Flash Flood Warning	JSJ	188 days
Apr 23, 7:19 AM CDT	Flash Flood Warning	JSJ	187 days
Apr 23, 7:19 AM CDT	Flash Flood Warning	JSJ	187 days
Apr 23, 7:19 AM CDT	Flash Flood Warning	JSJ	187 days
Apr 23, 7:19 AM CDT	Flash Flood Warning	JSJ	188 days
Apr 23, 10:10 AM CDT	Flash Flood Warning	JSJ	187 days
Apr 23, 10:10 AM CDT	Flash Flood Warning	JSJ	188 days

Nearby

Flash Flood Warnings in Puerto Rico, 2007 Every flash flood warning in 2007

Sources

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