Alert archive / Puerto Rico / Flash Flood Warnings in 2011
Flash Flood Warning 163, NWS JSJ
NWS JSJ issued this flash flood warning at Dec 10, 2011, 2:23 AM CST. It was in force for 5 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
- Dec 10, 2011, 2:23 AM CST (08:23 UTC)
- Expired
- Dec 10, 2011, 7:45 AM CST
- In force
- 5 hr
- Issued by
- NWS JSJ
- Area
- Storm-based polygon
- Flood severity
- None
The radar
The San Juan radar (TJUA), 32 km from the middle of the area, began a volume at 08:25 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, in the capitals the NWS used until 2016.
365
WGCA52 TJSJ 100823
FFWSJU
PRC127-101115-
/O.NEW.TJSJ.FF.W.0163.111210T0823Z-111210T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
423 AM AST SAT DEC 10 2011
THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
THE FOLLOWING MUNICIPALITY
IN PUERTO RICO
SAN JUAN
* UNTIL 715 AM AST
* AT 415 AM AST...RUNOFF FROM PREVIOUS HEAVY RAINFALL HAS RESULTED
IN SIGNIFICANT RISES ON RIO PIEDRAS AT SAN JUAN. THE CURRENT RIVER
STAGE IS 15.34 FEET AND RAISING. MOTORISTS DRIVING ALONG THE RIO
PIEDRAS AT SAN JUAN IN FLOOD PRONE AREAS SHOULD EXERCISE EXTREME
CAUTION. MOVE TO HIGHER GROUND IMMEDIATELY AND NEVER TRY TO CROSS
A FLOODED ROADWAY. ADDITIONAL SHOWERS WITH HEAVY RAINFALL WILL
AFFECT THIS MUNICIPALITY IN THE NEXT FEW HOURS AND THIS COULD
AGGRAVATE THE FLOODING SITUATION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 1843 6605 1835 6604 1833 6606 1844 6611
1845 6611
$$
OMS
ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/SANJUAN2 follow-up statements
671
WGCA52 TJSJ 101111
FFWSJU
PRC127-101345-
/O.EXT.TJSJ.FF.W.0163.000000T0000Z-111210T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN JUAN PR
711 AM AST SAT DEC 10 2011
THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
THE FOLLOWING MUNICIPALITY
IN PUERTO RICO
SAN JUAN
* UNTIL 945 AM AST
* AT 704 AM AST...DOPPLER RADAR INDICATED SHOWERS WITH ISOLATED
THUNDERSTORMS APPROACHING THE SAN JUAN METRO AREA WHICH WILL
AGGRAVATE THE FLOODING SITUATION. THEREFORE...THE FLASH FLOOD
WARNING FOR SAN JUAN HAS BEEN EXTENDED UNTIL 945 AM AST.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 1843 6605 1835 6604 1833 6606 1844 6611
1845 6611
$$
CASTRO
ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/SANJUAN372
WGCA72 TJSJ 101347
FFSSJU
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
947 AM AST SAT DEC 10 2011
PRC127-101353-
/O.EXP.TJSJ.FF.W.0163.000000T0000Z-111210T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN JUAN PR-
947 AM AST SAT DEC 10 2011
...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 945 AM AST
FOR SAN JUAN MUNICIPALITY...
DOPPLER RADAR INDICATED THAT THE HEAVY RAIN WHICH AFFECTED THIS AREA
HAD DISSIPATED OR CONTINUE TO DIMINISH AND MOVE AWAY. HOWEVER...
RUNOFF FROM PREVIOUS HEAVY RAINFALL MAY CAUSE URBAN FLOODING. AS A
RESULT...RESIDENTS AND MOTORISTS ACROSS THESE AREAS SHOULD BE ALERT
AND ALLOW TIME FOR STREAMS... CREEKS AND RIVERS TO RETURN TO NORMAL
LEVELS.
LAT...LON 1843 6605 1835 6604 1833 6606 1844 6611
1845 6611
$$
ADDITIONAL INFORMATION CAN BE FOUND AT /USE LOWER CASE LETTERS/:
HTTP://WWW.WEATHER.GOV/SANJUANThe office that day
Everything else NWS JSJ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 9, 7:51 PM CST | Areal Flood Advisory | JSJ | 114 min | |
| Dec 9, 8:49 PM CST | Special Marine Warning | JSJ | 56 min | |
| Dec 9, 9:58 PM CST | Areal Flood Advisory | JSJ | 6 hr | |
| Dec 9, 10:14 PM CST | Areal Flood Advisory | JSJ | 4 hr | |
| Dec 9, 11:01 PM CST | Flash Flood Warning | JSJ | 5 hr | |
| Dec 9, 11:21 PM CST | Areal Flood Advisory | JSJ | 7 hr | |
| Dec 9, 11:41 PM CST | Flash Flood Warning | JSJ | 8 hr | |
| Dec 10, 1:59 AM CST | Flash Flood Warning | JSJ | 8 hr | |
| Dec 10, 2:03 AM CST | Areal Flood Advisory | JSJ | 4 hr | |
| Dec 10, 2:06 AM CST | Flash Flood Warning | JSJ | 6 hr | |
| Dec 10, 2:16 AM CST | Flash Flood Warning | JSJ | 5 hr | |
| Dec 10, 4:26 AM CST | Flash Flood Warning | JSJ | 3 hr | |
| Dec 10, 6:03 AM CST | Areal Flood Advisory | JSJ | 117 min | |
| Dec 10, 6:25 AM CST | Areal Flood Advisory | JSJ | 2 hr | |
| Dec 10, 7:38 AM CST | Areal Flood Warning | JSJ | 10 hr | |
| Dec 10, 7:57 AM CST | Areal Flood Warning | JSJ | 4 hr | |
| Dec 10, 8:00 AM CST | Areal Flood Advisory | JSJ | 2 hr | |
| Dec 10, 8:24 AM CST | Areal Flood Advisory | JSJ | 111 min | |
| Dec 10, 9:39 AM CST | Flash Flood Warning | JSJ | 115 min | |
| Dec 10, 10:04 AM CST | Areal Flood Advisory | JSJ | 116 min | |
| Dec 10, 10:14 AM CST | Areal Flood Advisory | JSJ | 2 hr |
Nearby
Flash Flood Warnings in Puerto Rico, 2011Every flash flood warning in 2011
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.