.. Winter Weather Advisory in effect from 9 am this morning to
6 am EST Tuesday...
The National Weather Service in Sterling Virginia has issued a
Winter Weather Advisory for snow... which is in effect from 9 am
this morning to 6 am EST Tuesday. The Winter Storm Watch is no
longer in effect.
* Precipitation type... snow.
* Accumulations... 2 to 4 inches today and an additional 2 to 4
inches tonight.
* Timing... snow will begin between 9 am and 11 am this
morning... and will continue through tonight.
* Temperatures... highs around 30 today. Temperatures dropping into
the teens tonight.
* Winds... southeast 5 to 10 mph today... becoming west 10 to 20 mph
tonight.
Precautionary/preparedness actions...
A Winter Weather Advisory means that periods of snow will cause
travel difficulties. Be prepared for slippery roads and limited
visibilities... and use caution while driving.
Showing posts with label National Weather Service. Show all posts
Showing posts with label National Weather Service. Show all posts
Monday, February 15, 2010
Wednesday, February 10, 2010
Blizzard Warning in effect until 7 am EST Thursday...
The National Weather Service in Sterling Virginia has issued a
Blizzard Warning... which is in effect until 7 am EST Thursday.
The Winter Storm Warning has been cancelled.
* Precipitation type... snow.
* Accumulations... 7 to 14 inches of snow.
* Timing... snow will continue through this morning. A prolonged
upslope snow event will begin this afternoon and continue
through tonight.
* Temperatures... lower and mid 20s.
* Winds... winds will increase to 20 to 30 mph with gusts around 45
mph. Blowing and drifting snow will reduce visibilities to one
quarter mile or less at times... producing blizzard conditions.
Precautionary/preparedness actions...
A Winter Storm Warning means significant amounts of snow are
expected or occurring. The combination of snow and strong winds
will make travel very hazardous.
Precautionary/preparedness actions...
A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions... making travel extremely dangerous. Do not travel. If
you must travel... have a winter survival kit with you. If you get
stranded... stay with your vehicle.
Blizzard Warning... which is in effect until 7 am EST Thursday.
The Winter Storm Warning has been cancelled.
* Precipitation type... snow.
* Accumulations... 7 to 14 inches of snow.
* Timing... snow will continue through this morning. A prolonged
upslope snow event will begin this afternoon and continue
through tonight.
* Temperatures... lower and mid 20s.
* Winds... winds will increase to 20 to 30 mph with gusts around 45
mph. Blowing and drifting snow will reduce visibilities to one
quarter mile or less at times... producing blizzard conditions.
Precautionary/preparedness actions...
A Winter Storm Warning means significant amounts of snow are
expected or occurring. The combination of snow and strong winds
will make travel very hazardous.
Precautionary/preparedness actions...
A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions... making travel extremely dangerous. Do not travel. If
you must travel... have a winter survival kit with you. If you get
stranded... stay with your vehicle.
Monday, February 8, 2010
Tuesday: Winter Storm Watch from National Weather Service
A WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH WEDNESDAY AFTERNOON.
* PRECIPITATION TYPE...SNOW.
* ACCUMULATIONS...POTENTIAL FOR 5 OR MORE INCHES OF SNOW.
* TIMING...MID-MORNING TUESDAY THROUGH EARLY AFTERNOON WEDNESDAY.
* TEMPERATURES...TEMPERATURES NEAR FREEZING TUESDAY.
TEMPERATURES WILL DROP INTO THE 20S TUESDAY NIGHT THROUGH
WEDNESDAY MORNING.
* WINDS...LIGHT SOUTHEASTERLY WINDS TUESDAY BECOMING WEST-
NORTHWESTERLY AT 10 TO 20 MPH BY WEDNESDAY MORNING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.
THROUGH WEDNESDAY AFTERNOON.
* PRECIPITATION TYPE...SNOW.
* ACCUMULATIONS...POTENTIAL FOR 5 OR MORE INCHES OF SNOW.
* TIMING...MID-MORNING TUESDAY THROUGH EARLY AFTERNOON WEDNESDAY.
* TEMPERATURES...TEMPERATURES NEAR FREEZING TUESDAY.
TEMPERATURES WILL DROP INTO THE 20S TUESDAY NIGHT THROUGH
WEDNESDAY MORNING.
* WINDS...LIGHT SOUTHEASTERLY WINDS TUESDAY BECOMING WEST-
NORTHWESTERLY AT 10 TO 20 MPH BY WEDNESDAY MORNING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.
Thursday, February 4, 2010
National Weather Service: Winter Storm Warning
A WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM FRIDAY TO
10 PM EST SATURDAY.
* PRECIPITATION TYPE...HEAVY SNOW.
* ACCUMULATIONS...STORM TOTAL ACCUMULATIONS OF 18 TO 24 INCHES.
* TIMING...SNOW WILL BEGIN MID-MORNING FRIDAY...AND WILL CONTINUE
THROUGH SATURDAY EVENING. CONDITIONS WILL DETERIORATE RAPIDLY
FRIDAY AFTERNOON...WITH HEAVIEST SNOWFALL OCCURRING BETWEEN
SUNSET FRIDAY TO SUNRISE SATURDAY. THE MOST HAZARDOUS WINTER
WEATHER CONDITIONS WILL OCCUR FRIDAY NIGHT.
* VISIBILITIES...THE COMBINATION OF HEAVY SNOW AND STRONG WINDS
WILL REDUCE VISIBILITIES TO BELOW ONE-QUARTER MILE...PRODUCING
NEAR-BLIZZARD CONDITIONS AT TIMES FRIDAY NIGHT AND EARLY
SATURDAY MORNING.
* TEMPERATURES...HIGHS IN THE LOWER 30S FRIDAY. TEMPERATURES WILL
BE IN THE MID TO UPPER 20S FRIDAY NIGHT AND SATURDAY.
* WINDS...BECOMING NORTHEAST 10 TO 20 MPH FRIDAY WITH GUSTS TO
30 MPH FRIDAY NIGHT AND SATURDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONDITIONS IN THIS STORM ARE EXPECTED TO BE COMPARABLE TO THOSE
IN THE STORM OF 19 DECEMBER. PLAN FOR SUBSTANTIAL DISRUPTIONS TO
TRAVEL FRIDAY AFTERNOON THROUGH THE WEEKEND.
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR NEARLY IMPOSSIBLE FRIDAY NIGHT.
10 PM EST SATURDAY.
* PRECIPITATION TYPE...HEAVY SNOW.
* ACCUMULATIONS...STORM TOTAL ACCUMULATIONS OF 18 TO 24 INCHES.
* TIMING...SNOW WILL BEGIN MID-MORNING FRIDAY...AND WILL CONTINUE
THROUGH SATURDAY EVENING. CONDITIONS WILL DETERIORATE RAPIDLY
FRIDAY AFTERNOON...WITH HEAVIEST SNOWFALL OCCURRING BETWEEN
SUNSET FRIDAY TO SUNRISE SATURDAY. THE MOST HAZARDOUS WINTER
WEATHER CONDITIONS WILL OCCUR FRIDAY NIGHT.
* VISIBILITIES...THE COMBINATION OF HEAVY SNOW AND STRONG WINDS
WILL REDUCE VISIBILITIES TO BELOW ONE-QUARTER MILE...PRODUCING
NEAR-BLIZZARD CONDITIONS AT TIMES FRIDAY NIGHT AND EARLY
SATURDAY MORNING.
* TEMPERATURES...HIGHS IN THE LOWER 30S FRIDAY. TEMPERATURES WILL
BE IN THE MID TO UPPER 20S FRIDAY NIGHT AND SATURDAY.
* WINDS...BECOMING NORTHEAST 10 TO 20 MPH FRIDAY WITH GUSTS TO
30 MPH FRIDAY NIGHT AND SATURDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONDITIONS IN THIS STORM ARE EXPECTED TO BE COMPARABLE TO THOSE
IN THE STORM OF 19 DECEMBER. PLAN FOR SUBSTANTIAL DISRUPTIONS TO
TRAVEL FRIDAY AFTERNOON THROUGH THE WEEKEND.
A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR NEARLY IMPOSSIBLE FRIDAY NIGHT.
Sunday, January 24, 2010
Flash Flood Watch
Statement as of 4:38 AM EST on January 24, 2010
... Flash Flood Watch now in effect from 3 PM EST this afternoon
through Monday morning...
The Flash Flood Watch is now in effect for
* portions of Maryland... Virginia and northeast West Virginia.
* From 3 PM EST this afternoon through Monday morning
* a cold front will approach the area this afternoon and
tonight... bringing moderate to heavy rainfall. Rainfall amounts
of 1 to 2 inches are expected through early Monday
morning... with locally higher amounts in excess of 2 inches
possible.
* Flash flood guidance is low across the area. As little as one
half of an inch to one inch of rainfall in one hour or one to
one and a half inches of rainfall in three hours may cause
streams and creeks to overflow their banks.
Precautionary/preparedness actions...
A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.
... Flash Flood Watch now in effect from 3 PM EST this afternoon
through Monday morning...
The Flash Flood Watch is now in effect for
* portions of Maryland... Virginia and northeast West Virginia.
* From 3 PM EST this afternoon through Monday morning
* a cold front will approach the area this afternoon and
tonight... bringing moderate to heavy rainfall. Rainfall amounts
of 1 to 2 inches are expected through early Monday
morning... with locally higher amounts in excess of 2 inches
possible.
* Flash flood guidance is low across the area. As little as one
half of an inch to one inch of rainfall in one hour or one to
one and a half inches of rainfall in three hours may cause
streams and creeks to overflow their banks.
Precautionary/preparedness actions...
A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.
Thursday, January 21, 2010
WINTER STORM WARNING IN EFFECT FROM THIS EVENING TO FRIDAY AFTERNOON
National Weather Service Statement as of 4:09 AM EST on January 21, 2010
... Winter Storm Watch remains in effect from this evening through
Friday afternoon...
A Winter Storm Watch remains in effect from this evening through
Friday afternoon.
* Precipitation type... freezing rain... sleet... and snow.
* Accumulations... potential for ice accumulation of one quarter
inch. Snow and sleet accumulation of 5 inches or more is
possible.
* Timing... Thursday evening through Friday.
* Temperatures... upper 20s to lower 30s throughout the event.
* Winds... north-northeast 5 10 10 mph through Thursday night...
and 15 to 20 mph Friday.
Precautionary/preparedness actions...
A Winter Storm Watch means there is a potential for significant
snow... sleet... or ice accumulations that may impact travel.
Continue to monitor the latest forecasts.
... Winter Storm Watch remains in effect from this evening through
Friday afternoon...
A Winter Storm Watch remains in effect from this evening through
Friday afternoon.
* Precipitation type... freezing rain... sleet... and snow.
* Accumulations... potential for ice accumulation of one quarter
inch. Snow and sleet accumulation of 5 inches or more is
possible.
* Timing... Thursday evening through Friday.
* Temperatures... upper 20s to lower 30s throughout the event.
* Winds... north-northeast 5 10 10 mph through Thursday night...
and 15 to 20 mph Friday.
Precautionary/preparedness actions...
A Winter Storm Watch means there is a potential for significant
snow... sleet... or ice accumulations that may impact travel.
Continue to monitor the latest forecasts.
Thursday, December 17, 2009
NOAA: WINTER STORM WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH LATE SATURDAY NIGHT
WINTER STORM WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGHLATE SATURDAY NIGHT
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A WINTER STORM WATCH...IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
LATE SATURDAY NIGHT.
* PRECIP TYPE...SNOW.
* ACCUMULATIONS...HEAVY SNOW WITH ACCUMULATIONS GREATER THAN 5 INCHES.
* TIMING...SNOW WILL BEGIN LATE FRIDAY NIGHT AND WILL CONTINUE THROUGH SUNDAY MORNING.
* TEMPERATURES...UPPER 20S TO LOWER 30S THROUGH THE EVENT.
* WINDS...10 TO 20 MPH THROUGH THE EVENT...WITH GUSTS OF 25 TO 30 MPH SATURDAY AND SUNDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST
FORECASTS.
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