Flash Flood, Central Interior
- When
- November 7, 5:00 PM AST to November 9, 6:00 AM AST
- Where
- Central Interior County, Countywide
- Property damage
- $10 million
- Crop damage
- $4.0 million
- Reported by
- EMERGENCY MANAGER
S. Virgin Islands producing copious rainfall across the region.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SJU wrote it up.
A cold front became stationary on November 7 through November 9 across Puerto Rico and the U.S. Virgin Islands producing copious rainfall across the region. High seas and this excessive rainfall caused most of the rivers flowing to the north to go out of their banks flooding nearby areas and roads. The highest rainfall amounts in a 48 hour period were: 16.56 inches in Rio Piedras sector in San Juan, 16.07 inches in Naguabo, 14.26 inches in Morovis, 14.10 inches in Barranquitas, 13.52 inches in Bayamon, 12.63 inches in Canovanas and 12.60 inches in Orocovis. Flood damages were estimated at around $92 million. Of that total, 17 million occurred in the agriculture sector. The areas most affected were the north, central and east sections of Puerto Rico where considerable damage to electrical and water systems, highways and roads, bridges, privates homes, schools, small business and commerce were reported due to flooding, landslides and mudslides. In addition, nearly 300 people were in shelters.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Juan, PR wrote its last area forecast discussion before the first event at Nov 7, 3:30 PM AST, 1 hour 30 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST WED NOV 07 2001
THE MID TO HIGH LEVEL FLOW BECOMES ZONAL AND REMAINS ZONAL
THROUGH 12Z ON THE 12TH OF NOV. THIS MEANS LITTLE MOVEMENT
OF THE FRONT/TROF NOW ALONG THE N COAST OF DR AND PR. THERE
IS AMPLE LIFTING OF THIS HIGHLY CHARGED MOIST BAND THROUGH
12 NOV AS VORT CENTERS PASS THROUGH W TO E TO PRODUCE EXTENSIVE
CLOUDS AND RAIN. SO THE FORECAST WILL HAVE HI SCT POPS
THROUGH THE WHOLE PACKAGE. I DO NOT SEE ANY REAL DRYING TAKING
PLACE. THERE WILL BE BREAKS IN THE CLOUDS ALLOWING FOR SOME
DIURNAL CONVECTION SO TSTMS WILL BE VERY ISOLATED. A FLASH
FLOOD WATCH IN EFFECT UNTIL 08/02Z. IT MAY HAVE TO BE EXTENDED.
I WILL NOT MAKE ANY CHANGES TO THE HEAVY SURF ADVISORY OR THE
COASTAL FLOOD WATCH. A COASTAL FLOOD WARNING MAY HAVE TO BE
ISSUED BEFORE THE HIGH TIDE AT 1:35 AM ALTHOUGH I FEEL THAT
IT MAY NOT BE NEEDED. THE HEAVY SURF ADVISORY WILL SERVE
ITS PURPOSE FOR NOW.
PLEASE REFER TO ZFP AND CWF FOR FORECAST DETAILS.
EQUIPMENT: NO PROBLEMS AT THIS TIME.
.SJU...
.PR...HSA AND CFA FOR NORTH...NORTHWEST AND WEST FACING COASTS OF
PRZ001-002-005-008-010>013. SCA AMZ710-720-750 AND ALL
PASSAGES OF AMZ730 AND 740. FFA ZONES 1, 2, 5, AND 8 TIL
08/02Z.
.VI...HSA AND CFA NORTH AND NORTHWEST FACING COASTS OF VIZ001-002.
SCA AMZ710-720 AND ALL PASSAGES OF AMZ70.
17
WRITTEN TEXT FORECASTS (IN ENGLISH OR SPANISH)...SATELLITE IMAGERY
...DOPPLER RADAR DATA...AND A VIRTUAL LIBRARY OF WEATHER INFORMATION
CAN BE FOUND AT THE NWS SAN JUAN WEB SITE AT:
HTTP://WWW.SRH.NOAA.GOV/SJU (ALL LOWER CASE).13 flash flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2001Every state in 2001This day in weather historyWarnings in Puerto Rico, November 2001
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5272516, 5272517, 5272518, 5272519, 5272520, 5272754, 5272755, 5272756, 5272757, 5272758, 5272759, 5272760, 5272761.