Alert archive / Puerto Rico / Areal Flood Warnings in 2012

Areal Flood Warning 6, NWS JSJ

March 27, 2012

NWS JSJ issued this areal flood warning at Mar 27, 2012, 9:50 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 counties it named.

The facts

Issued: Mar 27, 2012, 9:50 PM CDT (02:50 UTC)
Expired: Mar 28, 2012, 12:20 AM CDT
In force: 3 hr
Issued by: NWS JSJ
Area: Storm-based polygon
Flood severity: None

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS JSJ wrote its last area forecast discussion before this areal flood warning went out at Mar 27, 9:32 PM CDT, 18 minutes earlier.

Area forecast discussion, Mar 27, 9:32 PM CDT, 18 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1032 PM AST TUE MAR 27 2012

.UPDATE...UPPER LEVEL TROUGH WILL CONTINUE TO DOMINATE THE REGION
OVER THE NEXT FEW DAYS. A SHEARLINE WILL MOVE ACROSS THE AREA
TONIGHT WITH WINDS SHIFTING FROM THE NORTH ON WEDNESDAY. EXPECT A
FEW SHOWERS TO DEVELOP ALONG THE ATLANTIC COAST OVERNIGHT AND THEN
ACROSS THE CORDILLERA AND THE SOUTH COAST TOMORROW AFTERNOON.

&&

.AVIATION...VFR CONDITIONS EXPECTED AT ALL TAF SITES UNTIL 28/16Z.
SHOWERS AND THUNDERSTORMS WILL DEVELOP AFTER 28/16Z PRODUCING
MOUNTAIN OBSCURATIONS AND SCATTERED MVFR CONDITIONS IN AND AROUND
TJPS AND TJMZ THROUGH ABOUT 28/22Z.

&&

.PREV DISCUSSION... /ISSUED 313 PM AST TUE MAR 27 2012/

SYNOPSIS...LARGE UPPER TROUGH ACROSS THE WESTERN ATLANTIC WILL
CONTINUE TO DOMINATE THE REGION INTO EARLY NEXT WEEK. A SHEARLINE
WILL MOVE ACROSS THE AREA TONIGHT BUT ACTUAL COLD FRONT WILL STALL
JUST NORTH OF THE AREA THURSDAY NIGHT.

DISCUSSION...NUMEROUS SHOWERS DEVELOPED ACROSS THE CORDILLERA
CENTRAL WITH VERY HEAVY RAIN. THESE SHOWERS ARE EXPECTED TO
DISSIPATED NEAR SUNSET. THROUGHINESS WILL CONTINUE ACROSS THE
REGION DURING THE NEXT FEW DAYS...WHICH WILL ENHANCE THE
DEVELOPMENT OF SHOWERS ACROSS THE INTERIOR SECTION OF PUERTO
RICO. VERY LIGHT WINDS WILL CONTINUE TO PREVAIL ACROSS THE REGION
THROUGH AT LEAST WEDNESDAY AFTERNOON. WINDS WILL INCREASE
WEDNESDAY AFTERNOON AS HIGH PRESSURE SYSTEM BUILDS ACROSS THE
WESTERN ATLANTIC. IN THE LONG TERM...NO SIGNIFICANT WEATHER EVENTS
ARE FORECAST TO AFFECT THE LOCAL REGION.

AVIATION...VCTS WILL CONTINUE ACROSS TJMZ AND TJPS THROUGH AT
LEAST 27/22Z. ELSEWHERE VFR CONDITIONS ARE EXPECTED.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  75  82  73  82 /  30  30  50  40
STT  74  83  74  83 /  30  30  50  40

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

10/23

Hazardous weather outlook, Mar 27, 4:29 AM CDT, 17 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN JUAN PR
529 AM AST TUE MAR 27 2012

AMZ710>745-PRZ001>013-280930-
SAN JUAN AND VICINITY-NORTHEAST-SOUTHEAST-EASTERN INTERIOR-
NORTH CENTRAL-CENTRAL INTERIOR-PONCE AND VICINITY-NORTHWEST-
WESTERN INTERIOR-MAYAGUEZ AND VICINITY-SOUTHWEST-CULEBRA-VIEQUES-
THE NEARSHORE AND OFF SHORE ATLANTIC AND CARIBBEAN COASTAL WATERS-
529 AM AST TUE MAR 27 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PUERTO RICO AND THE ADJACENT
ATLANTIC COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT
PERIODS OF MODERATE TO LOCALLY HEAVY RAINFALL WILL REMAIN POSSIBLE
ESPECIALLY ACROSS THE INTERIOR SECTIONS OF PUERTO RICO AND ALONG THE
CORDILLERA CENTRAL THIS AFTERNOON. THE MAIN CONCERN TODAY WILL BE
THE SLOW MOVEMENT OF THESE SHOWERS AND THUNDERSTORMS...WHICH
COULD PRODUCE HIGH RAINFALL ACCUMULATIONS ALONG THE CORDILLERA
CENTRAL. THIS SCENARIO WILL RESULT IN QUICK RISES IN RIVERS...STREAMS
AND CREEKS...AS WELL AS INCREASE THE POTENTIAL FOR URBAN FLOODING.
ALSO...THE THREAT OF MUDSLIDES WILL ALSO CONTINUE IN AREAS OF
STEEP TERRAIN WHERE SIGNIFICANT RAINFALL HAS OCCURRED IN RECENT
DAYS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER ANTICIPATED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ANY REPORTS OF SIGNIFICANT WEATHER OR FLOOD PROBLEMS WOULD BE
GREATLY APPRECIATED.

AMZ715-725-VIZ001-002-280930-
ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX-
NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS-
529 AM AST TUE MAR 27 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE U.S. VIRGIN ISLANDS AND THE
ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER ANTICIPATED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER ANTICIPATED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

In the hours before

Local storm report, Mar 27, 7:24 PM CDT, 2 hours 26 minutes before

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The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Mar 27, 8:07 PM CDT	Areal Flood Advisory	JSJ	5 hr
Mar 28, 3:31 AM CDT	Small Craft Advisory	JSJ	59 hr
Mar 28, 12:58 PM CDT	Areal Flood Advisory	JSJ	111 min
Mar 28, 1:42 PM CDT	Areal Flood Advisory	JSJ	3 hr
Mar 28, 2:45 PM CDT	Areal Flood Advisory	JSJ	5 hr
Mar 28, 3:53 PM CDT	Areal Flood Advisory	JSJ	3 hr
Mar 28, 4:04 PM CDT	Areal Flood Advisory	JSJ	3 hr
Mar 28, 5:04 PM CDT	Areal Flood Advisory	JSJ	116 min
Mar 28, 5:10 PM CDT	Flash Flood Warning	JSJ	3 hr
Mar 28, 5:33 PM CDT	Areal Flood Advisory	JSJ	117 min
Mar 28, 6:07 PM CDT	Areal Flood Advisory	JSJ	2 hr
Mar 28, 6:33 PM CDT	Areal Flood Advisory	JSJ	3 hr
Mar 28, 6:52 PM CDT	Areal Flood Warning	JSJ	21 hr

Nearby

Areal Flood Warnings in Puerto Rico, 2012 Every areal flood warning in 2012

Sources

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