Small Craft Advisory
NWS Baltimore MD/Washington DC ยท US
Updated
Details
Small Craft Advisory Now In Effect From 6 PM This Evening To 6 AM EDT Wednesday
- Event
- Small Craft Advisory
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Expected
- Severity
- Minor
- Certainty
- Likely
- Response
- Avoid
Description
What
Northeast winds 10 to 15 kt with gusts up to 25 kt expected.
Where
Tidal Potomac River from Key Bridge to Cobb Island MD.
When
From 6 PM this evening to 6 AM EDT Wednesday.
Impacts
Conditions will be hazardous to small craft.
Instructions
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Affected areas
- Tidal Potomac from Key Bridge to Indian Head MD
- Tidal Potomac from Indian Head to Cobb Island MD
Public contact
- Issuer
- NWS Baltimore MD/Washington DC
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~55s
- CAP status
- Actual
- CAP message type
- Update
- Lifecycle
- Updated
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M32JCH4R997T34N696ZBAQ67
- Identifier
- urn:oid:2.49.0.1.840.0.c5758caa261710e905470f92e057b3568797f933.004.1
- Sender
- w-nws.webmaster@noaa.gov
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Baltimore MD/Washington DC
- AWIPS ID
- CAPLWX
- NWWS sequence
- nwws_processor.117
- WMO heading
- XOUS51
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- United States (US)
- WMO bulletin number
- 51
References
- Sender
- w-nws.webmaster@noaa.gov
- Sent
- Sender
- w-nws.webmaster@noaa.gov
- Sent
- Sender
- w-nws.webmaster@noaa.gov
- Sent
- Sender
- w-nws.webmaster@noaa.gov
- Sent
Event codes
| Name | Value |
|---|---|
| SAME | NWS |
| NationalWeatherService | SCY |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | MWWLWX |
| WMOidentifier | WHUS71 KLWX 211806 |
| NWSheadline | SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO 6 AM EDT WEDNESDAY |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| VTEC | /O.EXT.KLWX.SC.Y.0148.260921T2200Z-260923T1000Z/ |
| eventEndingTime | 2026-09-23T06:00:00-04:00 |
| BLOCKCHANNEL | CMAS |
| expiredReferences | w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.bc45dcaf1264981bd95a35d1628fd8ec366bb2d4.004.1,2026-09-21T00:10:00-04:00 |
Locations
Location data
- Tidal Potomac from Key Bridge to Indian Head MD
- Tidal Potomac from Indian Head to Cobb Island MD
| Name | Value |
|---|---|
| SAME | 073535 |
| SAME | 073536 |
| UGC | ANZ535 |
| UGC | ANZ536 |