October 9-13 2005 Flood Event Report
During the period from October 9th through October 13th 2005,
Hydrologic Summary
As aforementioned, the month of October
started out to be a very wet month for the
Highest Rainfall Accumulations from October 4th
– 14th , 2005
ADSP4 |
Adjuntas |
24.92 |
PRTP4 |
|
23.58 |
VINP4 |
Villalba |
19.66 |
While the most widespread
flooding occurred during the second week of the month, the first week set the
stage for what would be a significant event for the
911 PM EDT MON OCT 10 2005 Puerto
Rainfall
needed Rico &
to cause flooding VI Zones
within time frames :IDENT 1HR 3HR 6HR ZONE NAME ==================== PRZ001 0.5/ 0.9/ 1.4 :PR FFG ZONE 1 PRZ002 0.8/ 1.7/ 2.6 :PR FFG ZONE 2 PRZ003 0.6/ 1.1/ 1.6 :PR FFG ZONE 3 PRZ004 0.5/ 0.9/ 1.4 :PR FFG ZONE 4 PRZ005 1.0/ 1.9/ 2.9 :PR FFG ZONE 5 PRZ006 0.4/ 0.8/ 1.3 :PR FFG ZONE 6 PRZ007 1.2/ 2.1/ 3.0 :PR FFG ZONE 7 PRZ008 1.9/ 3.0/ 4.1* (*max) :PR FFG ZONE 8 PRZ009 0.6/ 1.1/ 1.6 :PR FFG ZONE 9 PRZ010 0.9/ 1.6/ 2.3 :PR FFG ZONE 10 PRZ011 1.6/ 2.7/ 4.0 :PR FFG ZONE 11 PRZ012 0.9/ 1.8/ 2.7 :PR FFG ZONE 12 PRZ013 0.9/ 1.8/ 2.7 :PR FFG ZONE 13 VIZ001 0.9/ 1.8/ 2.7 :VI FFG ZONE 1 VIZ002 0.9/ 1.8/ 2.8 :VI FFG ZONE 2 .END |
Figure 1 – 1 day total |
To add to the complexity was
the fact that the system remained almost stationary and continued to pump rain
across the region for a few days.
The heaviest 24 hour rainfall amounts were for the period 8am October 10th
through 8am October 11th was on the average of 5 inches with maximum
values of over 11 inches. These
values definitely exceeded the computed Flash Flood Guidance values. This rainfall would prove too much for
most river systems but was especially devastating for the
Figure 2 - 5 day total |
Corresponding Rainfall totals > 10 ins for … Oct. 9th – Oct. 13th
(reports
at 8am)
DESCRIPTION |
9-Oct |
10-Oct |
11-Oct |
12-Oct |
13-Oct |
SUM |
|
||||||
B SLTILLO NR ADJNTS |
1.84 |
0.68 |
8.64 |
5.45 |
2.67 |
19.28 |
|
1.13 |
1.7 |
11.57 |
4.03 |
0.21 |
18.64 |
VILLALBA 3NE/BAR APE |
1.99 |
1.99 |
7.35 |
4.35 |
0.17 |
15.86 |
LAGO GARZAS/ADJUNTAS |
0.64 |
1.22 |
7.26 |
4.55 |
1.84 |
15.52 |
RIO INABON NR |
1.1 |
2.59 |
7.76 |
3.82 |
0.19 |
15.46 |
ICACOS NR NAGUABO |
1.19 |
1.67 |
7.7 |
3.02 |
1.8 |
15.39 |
PORTUGUES BLO DAM |
3.06 |
1.39 |
7.41 |
2.95 |
0.25 |
15.06 |
QUEB GUABA/NAGUABO |
1.47 |
1.68 |
7.26 |
2.67 |
1.47 |
14.56 |
|
1.03 |
2.54 |
6.65 |
3.56 |
0.35 |
14.13 |
MET STN AT RIO ICACO |
1.45 |
1.72 |
6.68 |
2.59 |
1.66 |
14.1 |
BRIO SALIENTE/JYUYA |
1.27 |
1.63 |
6.91 |
3.49 |
0.2 |
13.5 |
|
0 |
1.18 |
8.23 |
2.99 |
0.79 |
13.19 |
VIVI/ADJUNTAS 4E |
1.57 |
0.39 |
4.64 |
4.39 |
1.92 |
12.91 |
LAGO LUCCHETTI |
1.11 |
1.04 |
5.62 |
4.6 |
0.52 |
12.89 |
PORTUGUES-PONCE |
2.54 |
1.58 |
5.07 |
2.53 |
0.31 |
12.03 |
BRIO CONSEJO/ADJNTS |
1.48 |
0.38 |
4.31 |
3.88 |
1.97 |
12.03 |
ADJUNTAS 5WNW/AG STN |
1.96 |
|
5.17 |
4.23 |
0.19 |
11.56 |
TOA VACA ABV L T V |
0.67 |
2 |
5.74 |
2.98 |
0.16 |
11.55 |
BLANCO NR |
2.14 |
1.36 |
4.33 |
1.82 |
1.52 |
11.18 |
YAUCO 1NNE, PR |
1.53 |
1.04 |
3.5 |
3.96 |
1.14 |
11.18 |
GURABO BL EL MANGO |
0.31 |
2.57 |
4.87 |
1.87 |
1.41 |
11.03 |
BRIO COLLORES/JYUYA |
1.2 |
0.41 |
5.38 |
3.85 |
0.06 |
10.91 |
|
1.41 |
0.99 |
5.04 |
3.42 |
0.04 |
10.9 |
LAGO TOA VACA, |
0.47 |
2.54 |
5.65 |
2.1 |
0.07 |
10.84 |
L ANA MARIA/COTO LRL |
0.97 |
2.06 |
4.99 |
2.57 |
0.17 |
10.76 |
L PRIETO/ADJNTAS 10W |
2.04 |
0.28 |
3.49 |
4.35 |
0.47 |
10.64 |
YAUCO 1NNE/RIO YAUCO |
1.14 |
1.27 |
4.04 |
3 |
1.01 |
10.47 |
LAGO ICACOS DAMSITE |
0 |
|
5.51 |
3.14 |
1.72 |
10.38 |
CMP SANTIAGO/SALINAS |
0.61 |
2.41 |
5.14 |
1.77 |
0.38 |
10.32 |
BOCA GRNDE NR JAYUYA |
1.06 |
0.45 |
4.83 |
3.89 |
0.05 |
10.28 |
R JACAGUAS@JUAN DIAZ |
1.67 |
2.33 |
4.31 |
1.74 |
0.21 |
10.26 |
LAGO CARITE@GATE TWR |
0.27 |
1.46 |
5.96 |
1.8 |
0.63 |
10.13 |
JAUCA @ PASO |
0.96 |
0.28 |
4.03 |
4 |
0.85 |
10.13 |
|
0.75 |
0.94 |
2.95 |
5.04 |
0.35 |
10.04 |
As a result, flooding was widespread
across
The
While many of the smaller,
“flashy” basins in the Ponce area (area with highest rainfall
totals) including … but not limited to … the Rio Cerrillos (major flooding …10.62ft), Rio Inabon (major flooding) and Rio Jacaguas
experienced moderate to major flooding, minor to major was also reported along
the larger basins of
the Rio de la Plata,
Rio Grande de Manati , Rio Guanajibo
and Rio de Anasco . Of these larger basins, the
Gaged sites that exceeded 15 feet crests were; Rio de La Plata at Comerio
…17.59 ft, at Proyecto La Plata … 17.25 ft, at Toa Alta
… 21.33 ft, Rio de Anasco at
Guacio … 18.13 ft, Rio Caonillas at Paso Palma …
19.07 ft, Rio Grande de Loiza at HWY
183 … 16.53 ft, blw Dam … 23.04 ft, Rio
Gurabo at Gurabo … 19.04 ft, Rio
Grande de Manati at Manati … 33.17 ft, Rio Guayanilla at Guayanilla … 15.50 ft, Rio Inabon
at Real Abajo … 19.05 ft, Rio Jacaguas at Juana Diaz … 19.24 ft and Rio Cibuco at
Vega Baja … 15.00 ft.
*** see
Table 1 at bottom for Crest Details.
Preliminary Effects
The Governor of Puerto Rico
declared seventeen municipalities under State of
Flood effects on the
population of southern and interior
Heavy damage was sustained
by the Agricultural sectors of the island. The Puerto Rico Farm Bureau
estimated losses at 20 million. Vegetables farmers lost 7 million in crops and
infrastructure; coffee crops and paths 5 million; plantains, bananas, and
watering systems 3 million; milk and loss of production 2 million, cattle and
respective infrastructure 2 million, feed and chicken farms and citrus product
losses 1.5 million.
Although the main damages
were flooding related, there were also damages caused by winds gusts associated
with thunderstorms.
Department of Transportation
and Public Works estimated damages to roads in Lares
due to landslides at 1.5 to 2.0 million.
* Damages reports were based
on local daily newspapers reports.
Table 1
… Summary of River Crests for Flood Event |
|||||||||||||||||||
NR
NAGUABO (NGHP4) ABV LAGO CERRILLOS (PCEP4) MARGARITA DAM 14.0 10/11 *minor 14.01 10/11 16:00 (MODP4) ** AT COMERIO (COMP4) AT PROYECTO BLW ** AT COMERIO (COMP4) nr LOS LLANOS (DESP4) RIO GRANDE DE ANASCO 14.0 10/11
– 10/12 *minor/moderate 18.13 10/11 05:45
at BO. GUACIO (ANBP4) **
at ** NR SAN PEDRO (AREP4) ABV UTUADO, (UTUP4) … ADJUNTAS at HWY 135(ADKP4) BLW UTUADO (UTXP4) at PASO RIO SALIENTE
11.0 10/11 *minor 11.17 10/11
07:00
at COABEY nr
JAYUYA (JAYP4) RIO GRANDE DE LOIZA
14.0 10/11 *minor 16.53 10/11 17:15
AT HWY
183(SLNP4) BLW
DAM(TRUP4) nr CAMPO RICO (CNAP4) ** at GURABO (GURP4) **RIO GRANDE DE MANATI 25.0 10/11
– 10/13 *moderate/major 33.17 10/11
12:00 at MANATI (MANP4) **RIO GRANDE DE MANATI
10.0 10/11 *moderate 12.47 10/11 05:50 AT CIALES (CIAP4) ** at HORMIGUEROS (HORP4) at GUAYANILLA (GYAP4) AT REAL ABAJO (IANP4) AT JUANA DIAZ (JUAP4) RIO LOCO … YAUCO BLW DAM(LOEP4) 7.0 10/10 *minor
8.69 10/10
07:15 AT MAMEYES(MSEP4) **
AT VEGA BAJA (VGBP4) ** - NWS
Forecast Point |