METAR/SPECI uses the existing AviationWeather.gov bulk cache over the lower 48 and its margin. NWPS retains only gauges in the existing action-stage-or-above observed list; forecast-only gauges can have no observation. Absence never establishes zero wind, low water, or safe conditions.
Water-level gauge BLTM2
unavailable · No observation in the latest cached source list. Retained readings below are historical; an absent gauge may have fallen below action stage or stopped reporting.
Tide gauge (coastal water level) · Baltimore/Fort McHenry (IN MLLW) · Northwest Branch Patapsco River · -76.58, 39.27. Units ft; datum not supplied.
Source checked 2026-10-18 14:25:04.906Z · current.
Stage in this gauge’s units, not a regional flood depth. Tide/lake gauges remain water levels; datum is not supplied by this feed. Historical observations and the latest forecast keep separate times.
Retained observations: 0; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading none.
No retained observations yet. Reload after the existing scheduled source pass runs.
NWS forecast · current
Highest listed forecast: 2.7 ft at 2026-10-21 07:00:00 UTC; issued 2026-10-18 09:31:00 UTC. Action stage.
Impacts and the full forecast are read for gauges in flood; this one is at action stage.
Gauge thresholds: action 2.5 ft; minor 3.4 ft; moderate 4.6 ft; major 6 ft.
Observed reports as a table (0)
| Observed (UTC) | Stage / units | Source category / water |
|---|---|---|
| No retained observations. | ||
Capture times, quality and provenance
Each report keeps its observation time, first capture of this version, and the SHA-256 of the source bulk body. Corrections at the same observation time replace that point and are marked; unrelated bulk-file changes do not freshen a report.
Only observed gauge records enter this history. Forecast maxima and forecast hydrograph points never become observations. A missing datum or unsupported flow value remains unknown.
Observation source page · Cached readings as JSON · Official source
Gauges in the latest cached source
118 total · source current; checked . Showing 18 on page 2. 0 gauges have suspect readings set aside.
- SRPF1 · Racy Point (in MHHW) · River gauge · current ·
- STNG1 · Statenville · River gauge · unavailable · no observation; forecast context only
- SWPV2 · Sewell's Point (IN MLLW) · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- TCMF1 · Trout Creek Marina · Tide gauge (coastal water level) · current ·
- TMOG1 · GA-158 above Millwood · River gauge · current ·
- TNRA3 · Roosevelt · River gauge · unavailable · no observation; forecast context only
- TXPT2 · Texas Point · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- VDRG1 · Valdosta at US 41 · River gauge · current ·
- VDSG1 · Valdosta (Skipper Bridge Rd) · River gauge · current ·
- WAHV2 · Wachapreague (IN MLLW) · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- WASD2 · SW Waterfront (IN MLLW) · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- WCKV2 · Wharf Creek near Hudgins VA · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- WLON7 · Wilmington (IN MLLW) · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- WNDV2 · Windmill Point (IN MLLW) · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- WRGF1 · SR 54 Worthington Gardens · River gauge · current ·
- WRVV2 · Schley (IN MLLW) · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- WSPV2 · West Point (IN MLLW) · Tide gauge (coastal water level) · unavailable · no observation; forecast context only
- YKTV2 · Yorktown (IN MLLW) · Tide gauge (coastal water level) · unavailable · no observation; forecast context only