Weather

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Severe Thunderstorm Warning Issued

By ARLnow.com

Update at 3:35 p.m. — Arlington is now under a Severe Thunderstorm Warning through 4:30 p.m.

A Severe Thunderstorm Watch has been issued for the region through 10:00 p.m.

The National Weather Services says an approaching line of storms could bring heavy rain and damaging winds.

A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED UNTIL 10PM EDT. THUNDERSTORMS ARE EXPECTED THIS AFTERNOON INTO THE EVENING IN ADVANCE OF A COLD FRONT APPROACHING FROM THE WEST. SOME STORMS WILL PRODUCE DAMAGING WIND GUSTS OF UP TO 70 MPH. ISOLATED TORNADOES ARE ALSO POSSIBLE.

UPDATED: Thunderstorm Threat Tonight

By ARLnow.com

Update at 8:25 p.m. — The storm threat appears to have passed.

A line of strong thunderstorms, packing heavy rains and gusty winds, is heading toward Arlington.

The National Weather Service has issued the following Special Weather Statement.

… STRONG THUNDERSTORMS TO AFFECT THE DISTRICT OF COLUMBIA… ARLINGTON… MONTGOMERY… PRINCE WILLIAM… PRINCE GEORGES AND FAIRFAX COUNTIES…

AT 414 PM EDT… STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM 2 MILES NORTHWEST OF DALE CITY TO CAMP SPRINGS… MOVING NORTH AT 20 MPH.

LOCATIONS IMPACTED INCLUDE JEFFERSON MANOR… HUNTINGTON… FOREST HEIGHTS… MORNINGSIDE… WEST SPRINGFIELD… DISTRICT HEIGHTS… SUITLAND-SILVER HILL… SUITLAND… NORTH SPRINGFIELD AND BOLLING AIR FORCE BASE.

HEAVY RAIN WITH THESE STORMS WILL REDUCE VISIBILITIES TO BELOW ONE MILE AND CAUSE PONDING OF WATER ON ROADWAYS.

WIND GUSTS OF 40 MPH CAN BE EXPECTED WITH THESE STORMS.

NWS Issues Severe Thunderstorm Watch

By Katie Pyzyk

The National Weather Service has put Arlington and the surrounding areas under a Severe Thunderstorm Watch until 10:00 p.m. on Saturday. Conditions are favorable for strong storms, so anyone with outdoor plans for this evening should monitor weather reports.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM FOR THE OUTLOOK AREA. THUNDERSTORMS WILL BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS AND LARGE HAIL.

Severe Thunderstorm Watch Issued

By ARLnow.com

Arlington and the surrounding region is under a Severe Thunderstorm Watch through early Friday morning. A line of storms approaching the area may bring downpours, lighting and high winds.

From Arlington Alerts:

The National Weather Service has issued a SEVERE THUNDERSTORM WATCH for Arlington County and surrounding suburbs and the District until 1:00 am.

Those with outdoor plans this evening should monitor the skies and be prepared for threatening weather. Lightning is the number one severe weather killer in the US. If you are outdoors and a storm approaches, seek safe shelter indoors.

A SEVERE THUNDERSTORM WATCH means conditions are favorable for severe storms in and close to the watch area. Severe thunderstorms can and occasionally do produce tornadoes with little or no advanced warning. Residents should be on the lookout for threatening weather conditions and listen for later statements and possible warnings.

Severe Thunderstorm Watch Issued

By ARLnow.com

A Severe Thunderstrom Watch has been issued for Arlington and the surrounding region through 8:00 p.m.

The National Weather Service says the potential exists for storms and damaging winds this evening.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 800 PM EDT. SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS AFTERNOON ALONG AND SOUTH OF A SLOW-MOVING COLD FRONT. SOME STORMS WILL BECOME SEVERE AND WILL BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS AND POSSIBLY LARGE HAIL.

Weather Cancels Rosslyn Outdoor Movie

By Katie Pyzyk

Rosslyn’s Outdoor FilmFest movie, “Dave”, will be canceled tonight because of expected rain and thunderstorms throughout the evening.

Weather permitting, the screening of “Swing Vote” will still take place next Friday (July 27) as scheduled.

The region is still under a flash flood watch from the National Weather Service until 11:00 p.m.

WIDESPREAD RAINFALL RATES OF ONE TO TWO INCHES PER HOUR CAN BE
EXPECTED FROM AFTERNOON AND EVENING THUNDERSTORMS.

EXCESSIVE RAINFALL COULD CAUSE CREEKS AND STREAMS TO RISE
QUICKLY OUT OF THEIR BANKS AND COULD FLOOD LOW-LYING AND URBAN
AREAS…PARTICULARLY THOSE THAT HAVE HAD RECENT SIGNIFICANT
RAINFALL.

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.

NWS Issues Severe Thunderstorm Warning

By Katie Pyzyk

The National Weather Service has issued a Severe Thunderstorm Warning, in effect until 10:15 p.m.

This storm is capable of producing strong winds up to 60 miles per hourr.

…A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR THE CITY OF ALEXANDRIA…THE CITY OF FAIRFAX…THE CITY OF FALLS
CHURCH…FAIRFAX…PRINCE GEORGES…ARLINGTON…CHARLES AND
MONTGOMERY COUNTIES AND THE DISTRICT OF COLUMBIA…

AT 947 PM EDT…SEVERE THUNDERSTORMS WERE DETECTED ALONG A LINE
EXTENDING FROM BETHESDA TO MCLEAN TO BURKE…AND WERE MOVING EAST AT
25 MPH.

THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH.

THIS IS A DANGEROUS LINE OF STORMS. IF YOU ARE IN ITS PATH…MOVE
INDOORS TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS
SAFE TO DO SO…REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO
THE NATIONAL WEATHER SERVICE.

NWS Issues Severe Thunderstorm Warning

By Katie Pyzyk

(Updated at 5:20 p.m.) The National Weather Service has upgraded the previous storm watch to a warning. The warning is now effect until 5:45 p.m.

This is a strong storm that has the potential to bring damaging winds of 60 miles per hour and large hail.

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR… THE CENTRAL DISTRICT OF COLUMBIA… CENTRAL ARLINGTON COUNTY IN NORTHERN VIRGINIA… WESTERN PRINCE GEORGES COUNTY IN CENTRAL MARYLAND…

* UNTIL 545 PM EDT

* AT 500 PM EDT… A SEVERE THUNDERSTORM WAS DETECTED NEAR HOWARD UNIVERSITY… AND WAS MOVING SOUTHEAST AT 5 MPH. THIS STORM IS CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS AND DAMAGING WINDS IN EXCESS OF 60 MPH.

* LOCATIONS IMPACTED INCLUDE… GALLAUDET UNIVERSITY… US CAPITOL… NATIONALS PARK… RFK STADIUM… ANACOSTIA… KENILWORTH… CORAL HILLS… SEAT PLEASANT…

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH… MOVE INDOORS TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO SO… REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE NATIONAL WEATHER SERVICE.

NWS Issues Severe Thunderstorm Watch, Heat Advisory

By ARLnow.com

A Severe Thunderstorm Watch is in effect for Arlington and the surrounding region through 9:00 tonight.

Forecasters with the National Weather Service say scattered thunderstorms this afternoon and evening may produce damaging wind gusts, large hail, and heavy rainfall that could lead to flash flooding.

The area is also under a heat advisory. From NWS:

…HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING…

* HEAT INDEX VALUES…AROUND 105 DEGREES.

* MAXIMUM TEMPERATURES…AROUND 100 IN THE CITIES…UPPER 90S ELSEWHERE EAST OF THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS…STAY IN AN AIR-CONDITIONED ROOM…STAY OUT OF THE SUN…AND CHECK ON ELDERLY RELATIVES AND NEIGHBORS. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE.

NEVER LEAVE SMALL CHILDREN OR PETS UNATTENDED IN VEHICLES. TEMPERATURES INSIDE THE VEHICLE CAN RAPIDLY CLIMB TO 130 DEGREES.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE…RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE.

TO REDUCE RISK DURING OUTDOOR WORK…THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY – CALL 9 1 1.

Excessive Heat Watch Issued

By ARLnow.com

The National Weather Service has issued a Heat Advisory and an Excessive Heat Watch for Arlington and the surrounding region.

With temperatures expected to exceed 100 degrees today and tomorrow (Saturday), forecasters are warning of possible heat-related illness. According to NBC 4, by Sunday this will be the longest heat wave — 11 straight days above 95 degrees — in D.C. area history.

HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING… … EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING…

* HEAT INDICES… AROUND 105 THIS AFTERNOON. AROUND 110 SATURDAY AFTERNOON.

* MAXIMUM TEMPERATURES… AROUND 100 THIS AFTERNOON. AROUND 100 TO 105 SATURDAY AFTERNOON.

* IMPACT… HIGH RISK OF HEAT EXHAUSTION OR OTHER HEAT-RELATED ILLNESS FOR THOSE WITHOUT AIR-CONDITIONING OR THOSE SPENDING TIME OUTDOORS FOR AN EXTENDED PERIOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A HEAT ADVISORY AND AN EXCESSIVE HEAT WATCH MEAN THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS… STAY IN AN AIR-CONDITIONED ROOM… STAY OUT OF THE SUN… AND CHECK IN ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE… RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHTWEIGHT AND LOOSE-FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK… THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN SHADED OR AIR-CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY – CALL 9 1 1.

July 4 Fireworks Viewing Areas and Road Closures

By ARLnow.com

The region’s big Independence Day fireworks display on the National Mall is expected to kick off around 9:10 p.m. tonight

The display will last about 17 minutes, according to the National Park Service. For those who want to watch the fireworks from this side of the Potomac River, there are a number of places to watch the fireworks in and around Arlington tonight.

Among them:

Numerous road closures will be put in place to keep fireworks watchers safe. The planned closures include Memorial Bridge, Memorial Circle, and portions of Columbia Pike, eastbound Route 50, Washington Boulevard, and Long Bridge Drive. A full list is available on the Arlington County Police Department website.

Additionally, police are reminding fireworks-goers that grills, fireworks and alcoholic beverages are prohibited on county and federal park lands. Coolers and backpacks will be subject to search.

If you’re planning on going out to watch the fireworks, you might want to pack an umbrella. Storms are possible between 5:00 and 10:00 tonight, according to the Capital Weather Gang.

Flickr pool photo by BrianMKA.

Send us your fireworks and Fourth of July celebration photos via our Flickr page. We’ll be publishing a number of Flickr photos tomorrow. Want to know how to take great fireworks photos? See the guide posted by We Love DC.

Dislosure: Arlington County is advertising its Fourth of July event at Long Bridge Park with ARLnow.com.

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