Erica's Weather Blog

Tornadoes in Short Supply so far This Year

5:35 PM, May 14, 2013

So far this year, about 250 tornadoes have been reported, and the recent lack of strong tornadoes has also led to fewer tornado deaths.

Hurricane Season is Quickly Approaching!

3:47 PM, May 9, 2013

The Tropical Season is Right Around the Corner, Starting June 1st. This year, the National Hurricane Center will implement some changes, based on lessons learned.

The Marine Layer Moving in and out of DC

1:45 PM, May 2, 2013

This morning's thick deck of cloud cover quickly disappeared! It is a feature called the Marine Layer, and it might make another appearance at the end of the week. 

Reflecting on 10 Years of TV Weather

8:39 PM, Apr 28, 2013

This Week, I Celebrated My 10th Anniversary as a TV Meteorologist. It is a bittersweet anniversary for me; as one aspect of my life was beginning, another was ending.

Cherry Blossoms are Finally Blooming

12:44 AM, Apr 7, 2013

It took longer than usual, but those beautiful buds along the Tidal Basin are finally waking up!

Coastal Storm Likely on Friday

2:39 PM, Apr 2, 2013

Friday's forecast calls for rain, but how much? The forecast models aren't sure.

How Can It Be 35 Degrees and Snowing?

5:44 PM, Mar 20, 2013

In order for snow to fall, we know that the temperature has to be 32 degrees or colder... cold enough for water to freeze.  So why, you may wonder, is it possible to have snow falling with an air temperature above the freezing point?

Blizzard of '93... A Special Time for Little Grow

5:59 PM, Mar 13, 2013

The Blizzard of 1993 first sparked my interest in a meteorology career. I was just a few days shy of my 13th birthday when the storm hammered my hometown with a foot and a half of snow.

Winter Storms: To Name, or not to Name?

5:07 PM, Feb 20, 2013

The Weather Channel has taken it upon themselves to name winter storms that will have an impact on the United States. Will other weather organizations follow suit?

Is the Southeast the New "Tornado Alley"?

5:04 PM, Feb 20, 2013

The Midwestern plains have traditionally been our national tornado hotspot, but recent data shows that spot may be shifting further south and east!

"La Nada" Continues in the Eastern Pacific

3:42 PM, Feb 20, 2013

The El Nino Southern Oscillation (ENSO) pattern continues to be neutral, which means neither El Nino nor La Nina is dominating right now. What does this ENSO Neutral pattern, which I like to call "La Nada", mean for us in the DC Metro?

Cosmic Coincidence: An Asteroid and a Meteor

8:12 PM, Feb 15, 2013

An asteroid makes a near-miss in its path past our planet, and on the same day, a meteor smashes into Russia, causing damage and injuring about 1,000 people. Are these 2 events related?

Snow Likely This Weekend

7:19 PM, Feb 14, 2013

The final holiday of the winter won't be a repeat of the President's Day storm 10 years ago, but we could have some flakes falling.

New England's Mega-Nor'Easter is Taking Shape

11:48 PM, Feb 7, 2013

I've pinpointed 0Z Saturday (7pm Friday night) on the North American Model because it shows a classic "Bombogenesis" structure. I'll take you through each layer of the model data to find the "exploding low"!

Punxsutawney Phil: The Peculiar Prognosticator

7:00 PM, Feb 1, 2013

Statistically speaking, Punxsutawney Phil should make an accurate prediction about the approaching spring at least 50% of the time. Right? So, what's his excuse?

Flooding: The Deadliest Weather in the USA

7:15 PM, Jan 31, 2013

More people die in flash floods in the United States than from any other kind of weather; in fact, flood water kills more people than tornadoes and hurricanes combined in an average year. At least 8 people in the DC Metro area almost became part of that grim statistic on Thursday.

Snowfall Forecasting: Critical Thickness

12:04 PM, Jan 25, 2013

The critical thickness line, when plotted on a weather forecast map, helps meteorologists figure out whether rain or snow will fall. Learn how to find it with this article!

No Such Thing as a "Normal" Snow Year

4:25 PM, Jan 24, 2013

This winter has been a disappointment for snow-lovers so far, but all it takes is one big storm to bring our seasonal snowfall total above the average for the DC Metro area.

Can We Get "Bay Effect" Snow?

7:30 PM, Jan 7, 2013

The Lake-Effect snow season has begun in places like Michigan and upstate New York. Which begs the question: Why don't we have a similar snow effect with the Chesapeake Bay?

Geminid Meteor Shower Peaks Tonight

4:29 PM, Dec 17, 2012

The Geminid meteor shower is peaking tonight, and the weather conditions are ideal for viewing in the DC Metro area. Yay us!

The 2 "C"s of Forecasting

3:54 PM, Dec 6, 2012

Have you ever wondered how meteorologists come up with their forecast? In this article, I tell you about my method for looking at computer model data.

On the Watch for El Nino

3:53 PM, Dec 6, 2012

Zonal Flow: Fast and Furious!

2:37 PM, Nov 19, 2012

A "zonal" flow in the upper atmosphere means that our weather pattern is on the move!

Facts Worth Knowing About Tropical Storms

2:36 PM, Nov 19, 2012

Hurricanes aren't common in the DC Metro area, but they have made an impact on our area, and they're always fascinating!

The Jet Stream: Nature's Weather Conductor

1:51 PM, Nov 19, 2012

The jet stream may be several miles off the ground, but it is critically important in our daily weather patterns.

Weather Maps

LOCAL DOPPLER RADAR

LOCAL FORECAST

METRO ZONE WEATHER

REGIONAL WEATHER

EASTERN WEATHER

NATIONAL WEATHER

SEVERE WEATHER

Weather Cams
Topper Shutt Weather Blog

Topper's Blog: Lightning Strike at St. Albans

10:26 PM, May 15, 2013

It's been twenty two years since that deadly lightning strike at St. Albans. One man still carries the scars of lightning melting his ...

Howard Bernstein Weather Blog
Erica Grow Weather Blog
Weather Photos

Meteorologist Erica Grow

Erica Grow
Meteorologist Erica Grow joined the W*USA Weather Team in September 2012. You can watch her forecasts every Saturday and Sunday evening on 9NEWS NOW. More>>
Get automated phone alerts when severe weather is in your area. Sign up for the WUSA9 First Alert Weather Call.