This morning’s 5:00 chart from AAA shows Carraízo at 40.84 meters, down 1 centimeter from yesterday. La Plata is at 41.84 meters, up 6 centimeters from yesterday.
Service today
Day 92 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.
AAA has posted no plan change, open outage or water-quality notice in the last three days.
Every notice AAA posts is on the water page, in its own words.
Reservoirs
Carraízo: down 1 cm
Carraízo slipped overnight. This morning’s chart puts it at 40.84 meters, down 1 centimeter from yesterday, 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 8, 38.83 m, Watch
- Sep 9, 39.02 m, +19 cm, Watch
- Sep 10, 39.07 m, +5 cm, Watch
- Sep 11, 39.20 m, +13 cm, Watch
- Sep 12, 39.19 m, −1 cm, Watch
- Sep 13, 39.14 m, −5 cm, Watch
- Sep 14, 39.16 m, +2 cm, Watch
- Sep 15, 39.25 m, +9 cm, 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
- Oct 31, 0.45 in of rain
- Nov 1, 0.16 in of rain
- Nov 2, 0.21 in of rain
- Nov 3, 0.01 in of rain
- Nov 4, 2.2 in of rain
- Nov 5, 0.11 in of rain
Carraízo, November 6
- Level today
- 40.84 mSafe band
- Change since yesterday
- −1 cm
- To the Watch line
- 1.14 mline at 39.70 m
- At this week's pace
- rising
La Plata: a rise
La Plata gained ground overnight. This morning’s chart puts it at 41.84 meters, up 6 centimeters from yesterday, in the Adjustments band (Ajustes). The next line on the chart, into the Control band, sits at 40.50 meters, 1.34 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 8, 44.40 m, Adjustments
- Sep 9, 44.32 m, −8 cm, Adjustments
- Sep 10, 44.24 m, −8 cm, Adjustments
- Sep 11, 44.14 m, −10 cm, Adjustments
- Sep 12, 44.25 m, +11 cm, Adjustments
- Sep 13, 44.26 m, +1 cm, Adjustments
- Sep 14, 44.40 m, +14 cm, Adjustments
- Sep 15, 44.46 m, +6 cm, 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
- Oct 31, 0.38 in of rain
- Nov 1, 0.01 in of rain
- Nov 2, 0.05 in of rain
- Nov 4, 0.59 in of rain
- Nov 5, 0.74 in of rain
La Plata, November 6
- Level today
- 41.84 mAdjustments band
- Change since yesterday
- +6 cm
- To the Control line
- 1.34 mline at 40.50 m
- This morning
- rising
Cidra: the other rationing reservoir
- Level today
- 400.82 mWatch band
- Change since yesterday
- 0 cm
- To the Adjustments line
- 0.59 mline at 400.23 m
- At this week's pace
- rising
Outlook
What the numbers say
The week’s rain split the three reservoirs into two camps. Carraízo and Cidra answered the November 4 downpour with clear jumps the next morning, and both are now in a rising week after a flat or slightly falling one. Carraízo is the closest to a band change: at this week’s rate it would cross into the Spilling band (Desborde) in about 6 days. Cidra’s climb is also real, but the Safe line is much farther off, more than three weeks at the same pace.
La Plata tells a different story. It is still falling, but the decline has eased to 6 cm a day from 8.2 cm a day the week before, and the rain only nudged it: a small drop after the first wet day, then a 6 cm gain after the second. That gain is one morning, not yet a reversal. If the slower decline simply continued, the Control line would be about 22 days away. That is arithmetic, not a forecast, and a couple more dry days would change it.
What to watch
- Carraízo: whether the rise survives a dry week. This week’s gain came with 3.14 in of rain nearby.
- La Plata: whether the slowdown holds. A second week under 8.2 cm a day would show the decline easing.
- Cidra: whether the rise survives a dry week. This week’s gain came with 2.92 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 3 puts 40 of 78 municipios in at least moderate drought (D1). The worst tier, D2 severe drought, covers 19 of them, led by Aibonito, Comerío and Guánica. Since the map of October 27, no municipio worsened and 14 improved, while 64 stayed in the same category. The biggest move: Cabo Rojo (extreme drought to severe 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 | 100% |
| Guánica | D2 severe drought | 100% |
| Santa Isabel | D2 severe drought | 97.8% |
| Naranjito | D2 severe drought | 96.3% |
| Lajas | D2 severe drought | 89.6% |
| Barranquitas | D2 severe drought | 87.1% |
| Cidra | D2 severe drought | 70.8% |
The 8 municipios with the largest share of their area at D2, of 19 in that tier.
Since the map of October 27
| Municipio | Last map (Worst category on the map of October 27) | This map (Worst category on this map) |
|---|---|---|
| Cabo Rojo | D3 extreme drought | D2 severe drought |
| Guánica | D3 extreme drought | D2 severe drought |
| Guayanilla | D3 extreme drought | D2 severe drought |
| Juana Díaz | D3 extreme drought | D2 severe drought |
| Lajas | D3 extreme drought | D2 severe drought |
| Sabana Grande | D3 extreme drought | D2 severe drought |
| Salinas | D3 extreme drought | D2 severe drought |
| Santa Isabel | D3 extreme drought | D2 severe drought |
| Yauco | D3 extreme drought | D2 severe drought |
| Peñuelas | D2 severe drought | D1 moderate drought |
| Ponce | D2 severe drought | D1 moderate drought |
| Villalba | D2 severe drought | D1 moderate drought |
| Guayama | D1 moderate drought | D0 abnormally dry |
| San Germán | D1 moderate drought | D0 abnormally dry |
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 40.84 meters at 5:45 AM. The gauge USGS runs at La Plata read 41.86 meters at 5:45 AM. The gauge USGS runs at Cidra read 400.82 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.
Elsewhere today
How we read the data
This is the 79th Daily Water Watch (yesterday’s is here). The levels update every morning on the water page.
Levels: AAA’s daily reservoir chart, November 6. 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.