This event is unprecedented & all impacts are unknown & beyond anything experienced. Follow orders from officials to ensure safety. #Harvey
National Weather Service
@NWS
Official Twitter account for 's National Weather Service.
A list of official NWS accounts can be found at twitter.com/i/lists/725042…
National Weather Service’s Tweets
There's an increasing chance for #Dorian to bring a triple-threat of dangers to the Florida east coast...
🌊life-threatening storm surge
🌬️devastating hurricane-force winds
🌧️heavy rains
The onset of tropical storm force winds could be as soon as Saturday evening.
Prepare NOW.
No.
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Important note as #Florence continues to close in on the Carolina coastline, storm surge is not just an "ocean" problem tonight. Significant surge is expected to occur in the NC inlets and rivers, some areas in excess of 9 feet!
#Barry will slowly move inland today and continue to produce the following hazards...
-Life-threatening storm surge to coastal areas of Louisiana and Mississippi
-Heavy rainfall and flash flooding
-Strong wind and the threat for downed trees and power lines
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GOES East infrared loop of #TSBarry (551 am - 716 am CDT).
Latest updates: nhc.noaa.gov/refresh/graphi
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Here are the latest Key Messages on Hurricane Dorian from
Heads up! Today is the last day to prepare for Hurricane #Laura. Evacuation zones are based on potential storm surge. If an evacuation has been ordered, life-threatening storm surge is expected. Get your loved ones to a safe place...their life depends on it!
#Harvey in perspective. So much rain has fallen, we've had to update the color charts on our graphics in order to effectively map it.
Big changes to our forecast pages! To avoid any confusion between °F and °C, we've converted all of our temperatures to Kelvin. Enjoy!
#Pride Month is an opportunity to celebrate each other with mutual love and respect. The diversity of the NWS family, including those in the LGBTQ+ community, bring the vital skills and perspectives that allow us to meet our mission of protecting a diverse nation.
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Twister was an inspiration to many budding meteorologists over the last 20 years. Thank you, Bill Paxton, a.k.a. Bill "The Extreme" Harding.
With the naming of Subtropical Storm #Alpha, we've officially entered the Greek Alphabet for named Atlantic storms this year.
We've made it as far as Zeta one time on record, in 2005.
Visit hurricanes.gov for the latest.
To promote justice, equality, and equity for the transgender community, the National Weather Service family champions and stands alongside our transgender employees on this day and every day! #TransDayOfVisibility
Keep your eyes out for fake forecasts. THIS is what an official NOAA advisory looks like. Note: forecast only goes out 5 days. #Irma
😲🤯☀️🌕 's GOES East satellite is capturing the shadow of this morning's solar eclipse as it traverses South America.
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The eyewall of #Laura is moving onshore over southwestern LA. TAKE COVER NOW! Treat these imminent extreme winds as if a tornado was approaching. Move immediately to a safe room in your shelter. Take action now to protect your life!
Check media, NOAA Weather Radio for the latest
Unsurvivable storm surge with large, destructive waves will cause catastrophic damage from Sea Rim State Park, TX, to Intracoastal City, LA. Surge could penetrate up to 30 miles inland.
If you need to evacuate, do so NOW. Surge will begin today, well ahead of the strongest winds
Because 2020, we now have Zombie Tropical Storms. Welcome back to the land of the living, Tropical Storm #Paulette
#HurricaneFlorence is very large and incredibly dangerous.
✅Follow local evacuation orders!
✅Prepare for life-threatening, catastrophic flooding over portions of the Carolinas and Mid-Atlantic states late this week into early next week.
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“What if I'm caught in a rip current?” Stay calm and relax. Float to conserve energy. Rip currents don't pull you under. Don't swim against the current. You may be able to escape by swimming out of the current in a direction following the shoreline, or toward breaking waves, then… Show more
It's been a long 5 days with #Irma #Jose #Katia w/ more long days to come. Hang tough. Stay prepared. Stay informed. weather.gov
Three neat features captured on GOES satellite imagery this morning during the first flight test of a large rocket from South Texas.
1) The rocket's condensation trail
2) Shadow of the condensation trail
3) Lightning mapper capturing the rocket's Rapid Unscheduled Disassembly💥
A look at #Laura from above as it pushes closer to the landfall expected as a Category 4 hurricane overnight tonight. Laura will bring with it:
🔴Unsurvivable storm surge
🔴Hurricane force winds and
🔴Widespread flash flooding
The window to prepare is nearly closed. Do so NOW.
Replying to
With severe storms expected, it's a good time to learn the difference between a Watch and a Warning. weather.gov/safety/tornado
The official start of Fall - the Fall/Autumnal Equinox - is THIS MORNING, at 9:30 AM EDT. This marks the time when the day-to-night line, called the terminator, is perfectly vertical from pole to pole and the sun is directly over the equator. #FallEquinox #FirstDayOfFall
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While Astronomical #Winter doesn't commence until the solstice on Dec 21, Meteorological Winter starts TODAY and lasts through Feb. 28.
What's the difference between meteorological and astronomical seasons?
Read about it here:
noaa.gov/stories/whats-
Starting July 28, Severe Thunderstorms deemed “destructive” will activate a Wireless Emergency Alert (WEA) on smartphones. Criteria for a destructive threat is at least 2.75 inch diameter hail and/or 80 mph thunderstorm winds.
Read more: weather.gov/news/072221-sv
A Super Blue Blood Moon is coming in the early morning hours of Wednesday, January 31! Learn more about what that means here: nasa.gov/feature/super-
#SuperBlueBloodMoon
Maximum winds from #Florence have decreased, but don't let that fool you. This "weakening" only refers to maximum winds. The wind field has expanded and rainfall/storm surge potential are still at catastrophic levels.
hurricanes.gov
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Meteorologist: "Our wind measurement seems off"
Electronics Technician: "I'll go check it out..."
Electronics Technician: "I think I found the problem"
Meteorologist: 😲
Summer solstice - the first day of astronomical Summer - is THIS AFTERNOON at 5:43pm Eastern. Today has the most daylight of the year in the Northern Hemisphere.
Number of hours of daylight:
Utqiagvik, AK - 24:00
New York - 15:06
Los Angeles - 14:26
Miami - 13:45
South Pole - 0
For our friends in TX, if experiencing life-threatening flooding, move to a higher floor with windows or to the roof. #Harvey
On the eve of D-Day's 75th Anniversary, we still stand in awe of the men and women involved in the most important weather forecast in human history.
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We apologize in advance, for this jingle getting stuck on loop in your head, but we’d do anything to help you remember to Turn Around, Don’t Drown.
weather.gov/flood #TurnAroundDontDrown
Tropical Storm Maria is forecast to become a hurricane later today. Impacts are likely for the U.S. Virgin Islands and Puerto Rico.
As of 5PM #Florence is now a tropical storm, still causing life-threatening conditions to eastern parts of North and South Carolina. Falling trees and power lines, extreme flash flooding, and storm surge in rivers and inlets continue through tonight.
Even after nightfall, we have the tools to keep watch, and issue the life saving warnings to keep you, your family and friends safe. We're going to be watching #Laura all night, thinking of those of you facing the brunt of the storm.
weather.gov for the latest.
Today is the official start of Spring: the Spring/Vernal Equinox! 5:37am this morning marked the time when the day-to-night line, called the terminator, was perfectly vertical from pole to pole. #SpringEquinox #FirstDayOfSpring
Update on Hurricane #Laura from National Hurricane Director Ken Graham. Follow for the latest.
#HurricaneLaura
Don't take a chance by crossing flooded roadways. Turn around, don't drown. Your life could depend upon it. #Florence
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Coming in 2020: A new NWS Radar website!
Featuring:
✔️Mobile-friendly layout
✔️Dynamic zooming/scrolling
✔️Level 2 data
✔️GIS services
✔️Social-media friendly animations
#StayTuned
Today marks the NWS’ 152nd birthday. We could not be more proud of the thousands of dedicated NWS employees that have and will have served this country through the protection of life and property in the past, present and future. Thank you all!
More at vlab.noaa.gov/web/nws-herita
#Irma is now a Category 5 hurricane on the Saffir-Simpson Hurricane Wind Scale. Here's a little more on what that means. #HurricaneIrma
A Flash Flood Emergency has been issued for Metro New York City. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW!
You know it's cold when...
...the temperature of the ground is as cold as cloud tops. #GOESEast
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Everyone East of the Rockies: "Where's all this "cool fall weather" we're supposed to be getting?"
November: "LEEROY JENKINS!!!!"
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There are now 3 hurricanes in the Atlantic. Get the latest forecast tracks from nhc.noaa.gov. Prepare. Plan. Stay informed. 💻📱📺📻
Air quality has plummeted across much of the northeast as smoke from wildfires in Canada moves south. Poor air quality can be hazardous. Before spending time outdoors, check the air quality forecast. Make sure you aren’t doing yourself more harm than good. airnow.gov
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🍂🍂🍂🍂
Fall begins
tomorrow at
9:54 pm EDT.
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Flooding is occurring across Florida with Hurricane Irma. At night it can be impossible to see. Stay indoors! weather.gov/flood
Meet Cactus and Dogwood, the nation’s new weather and climate operational supercomputers - ranked among the 50 fastest computers in the world. This upgrade keeps NWS supercomputing on par with other leading weather forecast centers in the world. More at noaa.gov/news-release/u
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#OTD in 1975, the Edmund Fitzgerald sank in a violent storm on Lake Superior. Learn more: vlab.ncep.noaa.gov/web/nws-herita #NWS150
BEGINNING ON MAY 11, ’S NATIONAL WEATHER SERVICE FORECASTS WILL STOP YELLING AT YOU. noaa.gov/national-weath
The last sunrise of 2019! Thanks to you all for following us and helping share important science and weather safety information this past year. #2020NewYear #WeatherReady
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The new GOES-East satellite is capturing breathtaking images of #blizzard2018 battering the East Coast today. Find more images at weather.gov/satellite
What is the best part of the #WinterSolstice? How about daylight will now start increasing for the next 6 months!
Read more about astronomical seasons here: ncei.noaa.gov/news/meteorolo
Silly moon trying to get some attention with a photobomb!
Here is Category 3 Hurricane #Dorian.
Life-threatening storm surge and devastating hurricane-force winds are likely along portions of the Florida east coast by early next week.
The onset of tropical storm force winds in Florida could be as early as Sunday morning.
PREPARE NOW.
This bears repeating. When escaping flood waters in your home DO NOT get trapped in your attic. Get on the roof and call 911.
Is your area impacted by wildfire smoke? Surgical and dusk masks will NOT protect you.
Choose a mask called a “particulate respirator” that has the word “NIOSH” and either “N95” or “P100” printed on it. More info here from : bepreparedcalifornia.ca.gov/documents/prot
Get the latest on #Irma at hurricanes.gov. Strengthening is expected in the coming hours as it moves towards the FL coast.
Incredible video of a cold front in action.
In case there was any question...standing underneath a tree to get out of the rain during a thunderstorm is the worse thing you can do. Immediately head indoors if you hear thunder or see lightning. 👀 #SafePlaceSelfie
The center of Florence will not move far at all for a few days. With such a large storm, this means a long-duration event with plenty of opportunity for #Florence to pile up storm surge, batter those in its path with winds, erode beaches, and drop catastrophic amounts of rainfall
This is about three hours of satellite imagery over #Ida, each frame only one minute apart and ending at 12:28pm EDT.
You can see the incredible detail near the center as an eye begins to form.
Keep up with the latest forecast and safety information at noaa.gov/ida
A historic March blizzard is taking shape across Colorado, Wyoming, Montana, Nebraska, South Dakota, and North Dakota. Between 1 and 2 feet of snow is expected in some locations with wind gusts as high as 80 MPH. DO NOT TRAVEL if you live in these areas! weather.gov
A strong storm system is expected to bring severe thunderstorms with large hail, damaging wind gusts, and tornadoes to the southern Plains on Tuesday and the mid to lower Mississippi River Valley on Wednesday.
Hurricane #Irma's sustained winds are now 185MPH. Perspective: those are wind speeds associated with an EF-4 tornado
nhc.noaa.gov
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MT @TXMilitary: #Texas #NationalGuard are using every means available to save Texans in #Houston. #Harvey
Congratulations Dr. Louis Uccellini! We all wish you a long, happy, and snow filled retirement! Thank you for 43 years of service. (photo: D.Sanford)
Not 1, not 2, not 3, not 4, but 5...
5?
Yes, 5 active tropical cyclones in the Atlantic Basin his morning.
Main concern for the U.S. is #Sally which is expected to bring storm surge and 12+ inches of rain from Eastern LA to the FL panhandle.
noaa.gov/sally
Don’t underestimate the power of water. Turn Around Don’t Drown! tadd.weather.gov #FloodSafety #SummerSafety
Spectacular view from one of our this morning showing the effect of winds blowing cold air from the U.S. landmass to the Atlantic Ocean. The air picks up moisture while over the open water - eventually producing the numerous bands of clouds you see over the ocean.
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forecast calls for this...💯
so stay out of this...☀️
drink plenty of this...🥤
find AC like this...🏠
protect those like this...🐶
so you stay cool like this...😎
#WorldEmojiDay
We cannot stress this enough: #Florence poses a very serious threat to people who live far away from the coast. Heavy & long-lasting rainfall 🌧️could lead to CATASTROPHIC flooding🌊 in inland parts of NC, SC, VA & possibly other states. Are you prepared? go.usa.gov/xPr9e
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Life-threatening, catastrophic flash flooding and significant river flooding is likely over portions of the Carolinas and Mid-Atlantic states from late this week into early next week, as #Florence is expected to slow down as it approaches the coast and move inland.
On the move! Nate’s 28 mph forward motion, in the last 12 hours, is the fastest recorded forward motion of a Hurricane in the Gulf of Mexico
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Catasrophic wind.
Catastrophic surge.
Catastrophic rainfall and flooding.
These are the last hours to prepare or escape before conditions worsen and #Ian arrives in south and central Florida.
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Sep 28 7am EDT -- Here are the key messages from the special advisory issued on Hurricane #Ian.
Catastrophic storm surge inundation expected today as Ian moves ashore in the southwest Florida peninsula.
Latest: hurricanes.gov/#Ian
June is Lesbian, Gay, Bisexual, Transgender, and Queer+ Pride Month! This is a time to reflect and celebrate with #pride on all contributions of the LGBTQ+ members of the NWS family that help accomplish our mission of protecting lives and property.
Thank you for all you do!
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The Hurricanes Hunter crews of and USAF are true American heroes 🇺🇸. They fly into dangerous hurricanes to collect critical data that are used to help forecasters support emergency managers in making life-saving decisions in advance of landfall✈️🌀
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Time-lapse video of a #NOAA WP-3D Hurricane Hunter (#NOAA42) flight into Hurricane #Florence on Sept. 10, 2018. Get the latest on the storm at hurricanes.gov. Credit: Nick Underwood/NOAA
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They made the right call. They chose to turn around instead of attempting to drive through floodwaters.
Even if it's a route you've driven a million times before, and you think you know how deep the water is, it's impossible to know what lies beneath murky floodwaters.
#Barry
⚡️During a thunderstorm - standing under a tree is literally the WORST place to be.
⚡️During a thunderstorm - even sitting in a parked car under a tree is dangerous due to falling limbs from lightning and wind.
⚡️Imagine how many people don't know this?
#WeatherReady
Storm surge flooding of 10-15 ft is now expected along the SW Florida coast. This is a dire and life-threatening situation!
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The northern hemisphere Fall Equinox - 3:20pm EDT today - is one of two days during the year when day and night are most nearly equal everywhere on earth. There will be less daylight than nighttime each day now...that is, until March's Spring Equinox.
weather.gov/wrn/fall-safety
A huge thank you to all of our NWS offices for their commitment and great work protecting lives and property! #Florence
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Team #NWS at the Morehead City, NC office during #Florence. We're missing 2 in this picture, one of which has extensive damage to his home with water coming in through the roof. Know that we are safe and no matter what, ready to continue serving you. #ncwx
If you get caught in a #RipCurrent, STAY CALM. As illustrated by this green dye in a rip current; it will pull you away from shore. If you try to fight the rip current & swim against it, you will just get worn out. Instead - swim parallel to the beach! weather.gov/ripcurrent
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If you don’t have a NOAA Weather Radio, get one.
It may save your life
weather.gov/nwr/nwr_receiv
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Got my wife and baby out of bedroom about 10 minutes b4 this happened. We r in Darlene Estates in Fultondale. Thank u weather radio! @spann
Who says science and poetry don’t mix?
Happy Valentines Day from
Tornado warnings are Red,
Winter storm watches are Blue,
Keep yourself weather-ready,
So this won’t happen to you.
weather.gov
Happy Groundhog Day! Punxsutawney Phil *did not* see a shadow. Early Spring arrival it is!
Many people in the Central U.S. will experience spring-like temperatures today as highs will be well above normal.
Harvey continues to intensify according to and is now a category 4 #hurricane with maximum sustained winds of 130 mph.
If you know why the sky is blue,
how clouds form,
what makes thunder roar,
and the difference between "lightning" and "lightening",
Thank a teacher.
#TeacherAppreciationWeek
weather.gov/jetstream/
June is Lesbian, Gay, Bisexual, Transgender, and Queer Pride Month.
We are reflecting on the accomplishments of and #Pride we have in our LGBTQ+ members of the National Weather Service family. We see you and support you.
❤️🧡💛💚💙💜










