This morning’s 5:00 chart from AAA shows Carraízo flat at 40.84 meters. La Plata is at 43.25 meters, up 3 centimeters from yesterday.
Service today
Day 99 of the metro rotation, the San Juan area’s rationing schedule, with interruptions paused since September 2, and AAA has not canceled it.
AAA’s Cedro Arriba plan in Naranjito: AAA’s published calendar has run out; AAA has not said what follows.
Most important now
- Service out in Vega Alta and Dorado, posted November 12 at 8:40 AM: AAA’s notice
Every notice AAA posts is on the water page, in its own words.
Reservoirs
Carraízo: holding
Carraízo held its level. This morning’s chart puts it flat at 40.84 meters, in the Safe band (Seguridad). The next line on the chart, into the Watch band (Observación), sits at 39.70 meters, 1.14 meters below this morning’s reading.
Show the numbers
- Sep 15, 39.25 m, Watch
- Sep 16, 39.23 m, −2 cm, Watch
- Sep 17, 40.06 m, +83 cm, Safe
- Sep 18, 40.64 m, +58 cm, Safe
- Sep 19, 40.80 m, +16 cm, Safe
- Sep 20, 40.81 m, +1 cm, Safe
- Sep 21, 40.79 m, −2 cm, Safe
- Sep 22, 40.75 m, −4 cm, Safe
- Sep 23, 40.70 m, −5 cm, Safe
- Sep 24, 40.68 m, −2 cm, Safe
- Sep 25, 40.68 m, +0 cm, Safe
- Sep 26, 40.67 m, −1 cm, Safe
- Sep 27, 40.63 m, −4 cm, Safe
- Sep 28, 40.58 m, −5 cm, Safe
- Sep 29, 40.53 m, −5 cm, Safe
- Sep 30, 40.51 m, −2 cm, Safe
- Oct 1, 40.47 m, −4 cm, Safe
- Oct 2, 40.60 m, +13 cm, Safe
- Oct 3, 40.70 m, USGS gauge at 5 AM, Safe
- Oct 4, 40.74 m, +4 cm, Safe
- Oct 5, 40.72 m, −2 cm, Safe
- Oct 6, 40.69 m, −3 cm, Safe
- Oct 7, 40.65 m, −4 cm, Safe
- Oct 8, 40.88 m, +23 cm, Safe
- Oct 9, 40.94 m, +6 cm, Safe
- Oct 10, 40.91 m, −3 cm, Safe
- Oct 11, 40.96 m, +5 cm, Spilling
- Oct 12, 40.86 m, −10 cm, Safe
- Oct 13, 40.90 m, +4 cm, Safe
- Oct 14, 40.94 m, +4 cm, Safe
- Oct 15, 40.85 m, −9 cm, Safe
- Oct 16, 40.87 m, +2 cm, Safe
- Oct 17, 40.85 m, −2 cm, Safe
- Oct 18, 40.85 m, +0 cm, Safe
- Oct 19, 40.87 m, +2 cm, Safe
- Oct 20, 40.86 m, −1 cm, Safe
- Oct 21, 40.88 m, +2 cm, Safe
- Oct 22, 40.85 m, −3 cm, Safe
- Oct 23, 40.81 m, −4 cm, Safe
- Oct 24, 40.77 m, −4 cm, Safe
- Oct 25, 40.75 m, −2 cm, Safe
- Oct 26, 40.75 m, +0 cm, Safe
- Oct 27, 40.73 m, −2 cm, Safe
- Oct 28, 40.77 m, +4 cm, Safe
- Oct 29, 40.76 m, −1 cm, Safe
- Oct 30, 40.75 m, −1 cm, Safe
- Oct 31, 40.72 m, −3 cm, Safe
- Nov 1, 40.74 m, +2 cm, Safe
- Nov 2, 40.72 m, −2 cm, Safe
- Nov 3, 40.72 m, +0 cm, Safe
- Nov 4, 40.70 m, −2 cm, Safe
- Nov 5, 40.85 m, +15 cm, Safe
- Nov 6, 40.84 m, −1 cm, Safe
- Nov 7, 40.83 m, −1 cm, Safe
- Nov 8, 40.96 m, +13 cm, Spilling
- Nov 9, 40.88 m, −8 cm, Safe
- Nov 10, 40.90 m, +2 cm, Safe
- Nov 11, 40.84 m, −6 cm, Safe
- Nov 12, 40.84 m, +0 cm, Safe
- Nov 13, 40.84 m, +0 cm, Safe
- Nov 7, 1.01 in of rain
- Nov 8, 1.72 in of rain
- Nov 9, 2.36 in of rain
- Nov 10, 0.01 in of rain
- Nov 12, 0.27 in of rain
Carraízo, November 13
- Level today
- 40.84 mSafe band
- Change since yesterday
- 0 cm
- To the Watch line
- 1.14 mline at 39.70 m
- At this week's pace
- holding
La Plata: a rise
La Plata gained ground overnight. This morning’s chart puts it at 43.25 meters, up 3 centimeters from yesterday, in the Adjustments band (Ajustes). The next line on the chart, into the Control band, sits at 40.50 meters, 2.75 meters below this morning’s reading.
If your water comes from La Plata (Dorado, Guaynabo, Naranjito, Toa Alta, Toa Baja, Vega Alta, Bayamón, Cataño, Corozal), this is the reservoir to watch; AAA lists 130,828 client accounts on it.
Show the numbers
- Sep 15, 44.46 m, Adjustments
- Sep 16, 44.40 m, −6 cm, Adjustments
- Sep 17, 44.36 m, −4 cm, Adjustments
- Sep 18, 44.40 m, +4 cm, Adjustments
- Sep 19, 44.61 m, +21 cm, Adjustments
- Sep 20, 44.66 m, +5 cm, Adjustments
- Sep 21, 44.70 m, +4 cm, Adjustments
- Sep 22, 44.72 m, +2 cm, Adjustments
- Sep 23, 44.68 m, −4 cm, Adjustments
- Sep 24, 44.63 m, −5 cm, Adjustments
- Sep 25, 44.56 m, −7 cm, Adjustments
- Sep 26, 44.47 m, −9 cm, Adjustments
- Sep 27, 44.39 m, −8 cm, Adjustments
- Sep 28, 44.31 m, −8 cm, Adjustments
- Sep 29, 44.22 m, −9 cm, Adjustments
- Sep 30, 44.13 m, −9 cm, Adjustments
- Oct 1, 44.04 m, −9 cm, Adjustments
- Oct 2, 43.96 m, −8 cm, Adjustments
- Oct 3, 43.87 m, USGS gauge at 5 AM, Adjustments
- Oct 4, 43.79 m, −8 cm, Adjustments
- Oct 5, 43.71 m, −8 cm, Adjustments
- Oct 6, 43.70 m, −1 cm, Adjustments
- Oct 7, 43.68 m, −2 cm, Adjustments
- Oct 8, 43.62 m, −6 cm, Adjustments
- Oct 9, 43.54 m, −8 cm, Adjustments
- Oct 10, 43.52 m, −2 cm, Adjustments
- Oct 11, 43.50 m, −2 cm, Adjustments
- Oct 12, 43.45 m, −5 cm, Adjustments
- Oct 13, 43.45 m, +0 cm, Adjustments
- Oct 14, 43.50 m, +5 cm, Adjustments
- Oct 15, 43.47 m, −3 cm, Adjustments
- Oct 16, 43.39 m, −8 cm, Adjustments
- Oct 17, 43.29 m, −10 cm, Adjustments
- Oct 18, 43.18 m, −11 cm, Adjustments
- Oct 19, 43.07 m, −11 cm, Adjustments
- Oct 20, 43.00 m, −7 cm, Adjustments
- Oct 21, 43.06 m, +6 cm, Adjustments
- Oct 22, 42.97 m, −9 cm, Adjustments
- Oct 23, 42.87 m, −10 cm, Adjustments
- Oct 24, 42.76 m, −11 cm, Adjustments
- Oct 25, 42.64 m, −12 cm, Adjustments
- Oct 26, 42.52 m, −12 cm, Adjustments
- Oct 27, 42.40 m, −12 cm, Adjustments
- Oct 28, 42.28 m, −12 cm, Adjustments
- Oct 29, 42.27 m, −1 cm, Adjustments
- Oct 30, 42.27 m, +0 cm, Adjustments
- Oct 31, 42.20 m, −7 cm, Adjustments
- Nov 1, 42.12 m, −8 cm, Adjustments
- Nov 2, 42.04 m, −8 cm, Adjustments
- Nov 3, 41.94 m, −10 cm, Adjustments
- Nov 4, 41.83 m, −11 cm, Adjustments
- Nov 5, 41.78 m, −5 cm, Adjustments
- Nov 6, 41.84 m, +6 cm, Adjustments
- Nov 7, 42.10 m, +26 cm, Adjustments
- Nov 8, 42.38 m, +28 cm, Adjustments
- Nov 9, 42.51 m, +13 cm, Adjustments
- Nov 10, 42.93 m, +42 cm, Adjustments
- Nov 11, 43.15 m, +22 cm, Adjustments
- Nov 12, 43.22 m, +7 cm, Adjustments
- Nov 13, 43.25 m, +3 cm, Adjustments
- Nov 7, 0.88 in of rain
- Nov 8, 0.65 in of rain
- Nov 9, 0.46 in of rain
- Nov 10, 0.01 in of rain
La Plata, November 13
- Level today
- 43.25 mAdjustments band
- Change since yesterday
- +3 cm
- To the Control line
- 2.75 mline at 40.50 m
- This morning
- rising
Cidra: the other rationing reservoir
- Level today
- 400.95 mWatch band
- Change since yesterday
- 0 cm
- To the Adjustments line
- 0.72 mline at 400.23 m
- At this week's pace
- rising
Outlook
What the numbers say
The week’s rain did its work unevenly. La Plata is the clear story: it has reversed from a decline the week before to a steady rise, and it has now gained for eight mornings in a row, with its biggest single-morning jump (42 cm) coming on November 10. Even so, it remains in the Adjustments band and is still well below where it stood when the rotation began. Carraízo, the reservoir that feeds the most taps, was effectively flat this week despite 5.37 inches of rain across nearby gauges, and its next-morning readings after the heaviest days ranged from a small gain to a small loss.
The pace figures are arithmetic, not forecasts. If La Plata’s weekly rate held, it would cross into the Watch band in about nine days, but a rise this sharp tends to follow rain and may not persist. Cidra is climbing more slowly, and at that rate it would need more than a month to reach the Safe band. The pattern to watch is whether the gains hold through drier days, since Carraízo’s flat week shows that heavy rain alone does not guarantee a higher reservoir.
What to watch
- La Plata: whether the rise survives a dry week. This week’s gain came with 2 in of rain nearby.
- Cidra: whether the rise survives a dry week. This week’s gain came with 4.72 in of rain nearby.
- Naranjito: whether AAA extends its Cedro Arriba plan (the calendar runs through October 31), changes the phase or ends it.
Drought map
The US Drought Monitor map dated November 10 puts 37 of 78 municipios in at least moderate drought (D1). The worst tier, D2 severe drought, covers 10 of them, led by Aibonito, Comerío and Santa Isabel. Since the map of November 3, no municipio worsened and 13 improved, while 65 stayed in the same category. The biggest move: Aguas Buenas (severe drought to moderate drought).
Where the map is worst
| Municipio | Category | Share of area (Share of the municipio's area at this category or worse) |
|---|---|---|
| Aibonito | D2 severe drought | 100% |
| Comerío | D2 severe drought | 99.5% |
| Santa Isabel | D2 severe drought | 97.8% |
| Naranjito | D2 severe drought | 96.1% |
| Barranquitas | D2 severe drought | 87.1% |
| Cidra | D2 severe drought | 69.3% |
| Salinas | D2 severe drought | 58.5% |
| Coamo | D2 severe drought | 53% |
The 8 municipios with the largest share of their area at D2, of 10 in that tier.
Since the map of November 3
| Municipio | Last map (Worst category on the map of November 3) | This map (Worst category on this map) |
|---|---|---|
| Aguas Buenas | D2 severe drought | D1 moderate drought |
| Bayamón | D2 severe drought | D1 moderate drought |
| Cabo Rojo | D2 severe drought | D1 moderate drought |
| Guánica | D2 severe drought | D1 moderate drought |
| Guayanilla | D2 severe drought | D1 moderate drought |
| Lajas | D2 severe drought | D1 moderate drought |
| Sabana Grande | D2 severe drought | D1 moderate drought |
| Toa Alta | D2 severe drought | D1 moderate drought |
| Yauco | D2 severe drought | D1 moderate drought |
| Juncos | D1 moderate drought | D0 abnormally dry |
| Las Piedras | D1 moderate drought | D0 abnormally dry |
| San Lorenzo | D1 moderate drought | D0 abnormally dry |
| San Germán | D0 abnormally dry | No drought |
USDM categories are a weekly expert synthesis of drought indicators, not a rainfall total; municipio shares are area-weighted. The full map, colored by category, is on the water page.
Lake levels
The gauge USGS runs at Carraízo read 40.85 meters at 5:45 AM. The gauge USGS runs at La Plata read 43.25 meters at 5:45 AM. The gauge USGS runs at Cidra read 400.95 meters at 5:45 AM.
The gauges report every quarter hour and their readings are provisional; the bands are measured on AAA’s 5:00 chart.
How we read the data
This is the 85th Daily Water Watch (yesterday’s is here). The levels update every morning on the water page.
Levels: AAA’s daily reservoir chart, November 13. Rain: gauges USGS runs within 12 km of each reservoir. Day counts start August 7, when the metro rotation took effect. Straight-line dates are arithmetic, not forecasts. How we report.