Inflow forecast

modeled

NOAA’s National Water Model, short-range run issued Nov 14, 3 PM CST, for the 4 gauged tributary reaches feeding Lake Travis. The model includes rain that has already fallen plus the near-term rain forecast.

Gauged inflow now

2,037

cfs · measured

Peak next 17h

2,891

cfs · ~Sun 9 AM CST · modeled

Projected volume

2,914

acre-feet over 17h · modeled

If it all reached the lake

—

most of it reaches Travis through Starcke Dam

Projected flow by tributary reach

Forecast inflow, next 16 hours, all gauged reaches: starts at 1,880 cfs, peaks at 2,891 cfs Sun 9 AM (modeled)
Hour	Total (cfs)	Llano (cfs)	Colorado (cfs)	Sandy Creek (cfs)	Pedernales (cfs)
Sat 5 PM	1,880	1,604	226	4.6	46
Sat 6 PM	1,885	1,594	237	12	43
Sat 7 PM	1,896	1,582	253	22	39
Sat 8 PM	1,912	1,568	273	36	35
Sat 9 PM	1,927	1,550	297	48	31
Sat 10 PM	1,943	1,534	322	59	28
Sat 11 PM	1,959	1,520	348	67	25
Sun 12 AM	1,977	1,513	370	72	23
Sun 1 AM	1,995	1,511	389	75	21
Sun 2 AM	2,011	1,512	403	76	19
Sun 3 AM	2,023	1,514	413	78	18
Sun 4 AM	2,032	1,515	420	79	18
Sun 5 AM	2,039	1,516	425	81	17
Sun 6 AM	2,052	1,523	427	84	17
Sun 7 AM	2,321	1,784	429	90	17
Sun 8 AM	2,524	1,950	432	125	17
Sun 9 AM	2,891	2,194	434	172	90

LlanoColoradoSandy CreekPedernalesTotal (all gauged reaches)

Dashed lines are forecast. Values are at the gauges; water takes hours to a couple of days to get from there to the lake. Flows are forecast to rise noticeably. National Water Model via NOAA/NWS · public domain.

No lake effect is shown. Most of these rivers flow into the lakes upstream of Lake Travis, and their water reaches it only when Starcke Dam releases it, which no model forecasts. The volume above is the water heading toward the chain of lakes, measured at the gauges. During floods, watch the main page instead.