Frederick, Maryland
Short-term forecast
Issued by the National Weather Service at 12:21 am EST on March 13, 2010
Flood Watch in effect through Sunday evening... Periods of light rain and drizzle will continue through 2 am across north-central Maryland and the eastern Panhandle of West Virginia. Rainfall rates will continue to be up to one tenth of inch per hour...with higher rates along the Blue Ridge and catoctin mountains. Northeast winds will increase to around 15 to 25 mph with gusts over 30 mph.
5-day forecast
As of 9:00 PM EST on March 12, 2010
Rest of Tonight...Rain. Rain may be heavy at times. Breezy with lows in the mid 40s. Northeast winds 15 to 25 mph. Chance of rain near 100 percent.
Saturday...Rain. Rain may be heavy at times. Highs around 50. Northeast winds 15 to 20 mph with gusts up to 35 mph. Chance of rain near 100 percent.
Saturday Night...Rain...mainly in the evening. Lows in the lower 40s. Northeast winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain near 100 percent.
Almanac
Key: T = Trace of precipitation; MM = data not available
Flood Warning
Issued by the National Weather Service at 12:28 am EST on March 13, 2010
The National Weather Service in Sterling VA has issued a
* Flood Warning for
the Monocacy River near Frederick.
* From this morning until further notice.
* At 11:30 PM Friday the stage was 10.8 feet.
* Flood stage is 15.0 feet.
* Moderate to major flooding is forecast.
* Forecast... rise above flood stage by this morning and continue to
rise to near 21.9 feet by after midnight tomorrow.
Below are the latest river stages and crest forecasts:
flood observed fcst crest below
location stage stage day time stage day time flood
Potomac basin blo Harpers Ferry
Frederick 15.0 10.8 Fri 11 PM 21.9 sun 01 am
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Areal Flood Watch
Issued by the National Weather Service at 9:50 PM EST on March 12, 2010
... Flood Watch remains in effect through Sunday evening...
The Flood Watch continues for
* the Washington and Baltimore metropolitan areas... north-central
and western Maryland... lower southern Maryland... eastern West
Virginia... and northern and central Virginia
* through Sunday evening
* low pressure will bring periods of rain through Saturday night.
The heaviest rain is expected to occur overnight and Saturday.
Widespread rainfall totals of 2 to 4 inches can be
expected... with locally higher amounts.
* These rainfall amounts will bring the likelihood of flooding for
small streams... creeks and urban areas overnight through
Saturday. Additionally... minor to moderate flooding of feeder
creeks and streams of the Potomac and Shenandoah rivers is
likely to start late tonight and last through Sunday night.
Along the mainstem Potomac River... moderate flooding is likely
to start Saturday at Paw Paw... Harpers Ferry... Point of Rocks
and Little Falls... and last through Sunday night. Along the
mainstem Shenandoah River... moderate flooding is likely at and
downstream of Millville.
Precautionary/preparedness actions...
A Flood Watch means there is a potential for flooding based on
current forecasts.
Monitor later forecasts and be alert for possible flood warnings.
Those living in areas prone to flooding should be prepared to
take action should flooding develop.
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 |
National Weather Service: Flood Warning , Areal Flood Watch |
Short-term forecast
Issued by the National Weather Service at 12:21 am EST on March 13, 2010
Flood Watch in effect through Sunday evening... Periods of light rain and drizzle will continue through 2 am across north-central Maryland and the eastern Panhandle of West Virginia. Rainfall rates will continue to be up to one tenth of inch per hour...with higher rates along the Blue Ridge and catoctin mountains. Northeast winds will increase to around 15 to 25 mph with gusts over 30 mph.
5-day forecast
| Sat | Sun | Mon | Tue | Wed |
|---|---|---|---|---|
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| Rain | Rain | Chance of Rain | Partly Cloudy | Partly Cloudy |
| 54° | 43° | 50° | 38° | 52° | 36° | 56° | 38° | 56° | 36° |
| Current conditions | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Forecast
As of 9:00 PM EST on March 12, 2010
Rest of Tonight...Rain. Rain may be heavy at times. Breezy with lows in the mid 40s. Northeast winds 15 to 25 mph. Chance of rain near 100 percent.
Saturday...Rain. Rain may be heavy at times. Highs around 50. Northeast winds 15 to 20 mph with gusts up to 35 mph. Chance of rain near 100 percent.
Saturday Night...Rain...mainly in the evening. Lows in the lower 40s. Northeast winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain near 100 percent.
Radar
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Regional conditions
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Almanac
Key: T = Trace of precipitation; MM = data not available
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Flood Warning
Issued by the National Weather Service at 12:28 am EST on March 13, 2010
The National Weather Service in Sterling VA has issued a
* Flood Warning for
the Monocacy River near Frederick.
* From this morning until further notice.
* At 11:30 PM Friday the stage was 10.8 feet.
* Flood stage is 15.0 feet.
* Moderate to major flooding is forecast.
* Forecast... rise above flood stage by this morning and continue to
rise to near 21.9 feet by after midnight tomorrow.
Below are the latest river stages and crest forecasts:
flood observed fcst crest below
location stage stage day time stage day time flood
Potomac basin blo Harpers Ferry
Frederick 15.0 10.8 Fri 11 PM 21.9 sun 01 am
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Areal Flood Watch
Issued by the National Weather Service at 9:50 PM EST on March 12, 2010
... Flood Watch remains in effect through Sunday evening...
The Flood Watch continues for
* the Washington and Baltimore metropolitan areas... north-central
and western Maryland... lower southern Maryland... eastern West
Virginia... and northern and central Virginia
* through Sunday evening
* low pressure will bring periods of rain through Saturday night.
The heaviest rain is expected to occur overnight and Saturday.
Widespread rainfall totals of 2 to 4 inches can be
expected... with locally higher amounts.
* These rainfall amounts will bring the likelihood of flooding for
small streams... creeks and urban areas overnight through
Saturday. Additionally... minor to moderate flooding of feeder
creeks and streams of the Potomac and Shenandoah rivers is
likely to start late tonight and last through Sunday night.
Along the mainstem Potomac River... moderate flooding is likely
to start Saturday at Paw Paw... Harpers Ferry... Point of Rocks
and Little Falls... and last through Sunday night. Along the
mainstem Shenandoah River... moderate flooding is likely at and
downstream of Millville.
Precautionary/preparedness actions...
A Flood Watch means there is a potential for flooding based on
current forecasts.
Monitor later forecasts and be alert for possible flood warnings.
Those living in areas prone to flooding should be prepared to
take action should flooding develop.
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 |
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