Alert archive / Virginia / Small Craft Advisories in 2021

Small Craft Advisory 165, NWS Baltimore/Washington

August 9, 2021

NWS Baltimore/Washington issued this small craft advisory at Aug 9, 2021, 1:36 PM EDT. It took effect at Aug 10, 2021, 4:00 PM EDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Aug 9, 2021, 1:36 PM EDT (17:36 UTC)
In effect from
Aug 10, 2021, 4:00 PM EDT
Expired
Aug 11, 2021, 1:50 AM EDT
In force
10 hr
Issued by
NWS Baltimore/Washington

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Baltimore/Washington wrote its last area forecast discussion before this small craft advisory went out at Aug 9, 10:01 AM EDT, 3 hours 35 minutes earlier.

Area forecast discussion, Aug 9, 10:01 AM EDT, 3 hours 35 minutes before
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Hazardous weather outlook, Aug 9, 12:12 PM EDT, 1 hour 24 minutes before
Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
1212 PM EDT Mon Aug 9 2021

ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ052>057-101000-
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-District of Columbia-Cecil-Southern Baltimore-
Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Central and Southeast Howard-
Southeast Harford-Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-
King George-
1212 PM EDT Mon Aug 9 2021

This Hazardous Weather Outlook is for the Maryland portion of the
Chesapeake Bay, Tidal Potomac River, and I-95 corridor through
central Maryland, northern Virginia, and District of Columbia.

.DAY ONE...This Afternoon and Tonight

A slow-moving thunderstorm is possible this afternoon and early
evening, which could lead to an isolated instance of flooding in
the Baltimore-Washington Metropolitan Area. A severe storm
capable of producing damaging wind gusts is possible as well this
afternoon and early evening.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Heat index values of 100 to 105 are possible during the afternoon
hours Wednesday through Saturday.

Isolated severe storms along with isolated instances of flash
flooding are possible during the afternoon and evening hours
Wednesday through Saturday.

.SPOTTER INFORMATION STATEMENT...

Please send any reports of wind damage or flooding to the National
Weather Service.

MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508-
WVZ050>053-055-101000-
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta-
Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-Nelson-
Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper-
Northern Fauquier-Southern Fauquier-Western Loudoun-
Eastern Loudoun-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-Hampshire-Morgan-Berkeley-Jefferson-
Hardy-
1212 PM EDT Mon Aug 9 2021

This Hazardous Weather Outlook is for portions of eastern West
Virginia, northern and central Virginia, and central and western
Maryland.

.DAY ONE...This Afternoon and Tonight

A slow-moving thunderstorm is possible this afternoon and early
evening, which could lead to an isolated instance of flooding. A
severe storm capable of producing damaging wind gusts is possible
as well this afternoon and early evening.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Heat index values of 100 to 105 are possible during the afternoon
hours Wednesday through Saturday, especially near and east of
Interstate 81.

Isolated severe storms along with isolated instances of flash
flooding are possible during the afternoon and evening hours
Wednesday through Saturday.

.SPOTTER INFORMATION STATEMENT...

Please send any reports of wind damage or flooding to the National
Weather Service.

MDZ001-501-502-VAZ503-504-WVZ501>506-101000-
Garrett-Extreme Western Allegany-Central and Eastern Allegany-
Western Highland-Eastern Highland-Western Grant-Eastern Grant-
Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
1212 PM EDT Mon Aug 9 2021

This Hazardous Weather Outlook is for the Allegheny Front
counties in western Maryland, eastern West Virginia, and Highland
County Virginia.

.DAY ONE...This Afternoon and Tonight

A slow-moving thunderstorm is possible this afternoon and early
evening, which could lead to an isolated instance of flooding. A
severe storm capable of producing damaging wind gusts is possible
as well this afternoon and early evening. The strongest storms are
most likely over the Allegheny Highlands in West Virginia and
western Maryland.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Isolated severe storms along with isolated instances of flash
flooding are possible during the afternoon and evening hours
Wednesday through Saturday.

.SPOTTER INFORMATION STATEMENT...

Please send any reports of wind damage or flooding to the National
Weather Service.

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 4:31 AM EDTSmall Craft AdvisoryLWX27 hr
Aug 9, 2:51 PM EDTSpecial Marine WarningLWX64 min
Aug 9, 3:52 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford19 min
Aug 9, 6:19 PM EDTSevere Thunderstorm WarningLWXAnne Arundel41 min
Aug 9, 6:23 PM EDTSevere Thunderstorm WarningLWXPrince George's52 min
Aug 9, 6:39 PM EDTFlash Flood Warning Considerable damage threatLWXMontgomery, Prince George's3 hr
Aug 9, 6:49 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Prince George's22 min
Aug 9, 7:28 PM EDTSevere Thunderstorm WarningLWXMontgomery, Prince George's29 min

Nearby

Small Craft Advisories in Virginia, 2021Every small craft advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.