Tropical Storm Emily Soaks Florida’s Gulf Coast

Tropical Storm Emily, the fifth named storm of the 2017 Atlantic Hurricane Season, made landfall at Anna Maria Island in Tampa Bay, FL on Monday morning. It slammed the Sunshine state’s west coast with heavy rain and winds measured up to 45 mph.

According to the NWS, Valrico, FL, a few miles east of Tampa, saw 8.19 inches of rain. Widespread flooding was reported across the region and Gov. Rick Scott declared a state of emergency for 31 counties.

Most land-falling tropical storms come with a few days warning, as they develop over the ocean before moving toward populated areas. Emily, however, sprung up very quickly. It formed as the result of an out-of season cold front stalling out over the extremely warm waters of the Gulf of Mexico near Florida’s west coast.

Moving across the Florida peninsula, away from the warm waters that fueled it, the storm weakened quickly and was downgraded to a tropical depression. It is forecast to travel northeast out into the Atlantic Ocean. No major impacts are expected along the Eastern Seaboard, but rip currents will be an issue for beachgoers over the next few days from Florida to the Carolinas.

TS Emily moves over central Florida. Credit: NOAA/NASA GOES

June 2017: A Temperature Roller Coaster in NYC

June 2017 felt like a temperature roller coaster in New York City. Highs ranged from an unseasonably cool 58°F to a balmy 94°F. June also brought the city its second heat wave of the year. In the end, however, the cold and warmth balanced each other out. The city’s mean temperature for the month was 72°F, which is only .06°F above average.

 

In terms of precipitation, the city was wetter than normal. Overall, 4.76 inches of rain was measured in Central Park. Of this total, 84% fell during three separate heavy rain events that each produced over an inch of rain. On average, the Big Apple gets 4.41 inches of rain for the entire month of June.

Credit: The Weather Gamut

Tropical Storm Cindy Batters Gulf Coast

Tropical Storm Cindy, the third named storm of the 2017 Atlantic Hurricane Season, made landfall between Cameron, LA and Port Arthur, TX early Thursday morning. It battered the area with heavy rain and winds measured up to 40 mph.

With rainbands spreading out across the Gulf Coast, flash floods were reported from New Orleans, LA to Pensacola, FL. The storm also downed trees and knocked out power to more than 32,000 customers across six states.

Moving inland, the storm was soon downgraded to a tropical depression. However, it still spawned a destructive tornado in Fairfield, AL. The NWS has given the twister a preliminary rating of EF-2.

The remnants of Cindy are expected to travel northeast over the next several days, unleashing even more torrential rain as it moves along.

Tropical Storm Cindy in the Gulf of Mexico. Credit: NOAA/NWS

Powerful Thunderstorm Lashes NYC

A violent thunderstorm lashed the New York City area on Monday afternoon. Strong winds and heavy rain were seen across the region.

After days of hot and humid conditions, a cold front moved in from the west and triggered these powerful storms. According to the NWS, 1.35 inches of rain was measured in Central Park and wind gusts reached 34 mph. Flash floods and downed trees were reported in Manhattan and the Bronx.

Below is a short video of the soaking rain seen near Madison Square Park in Manhattan.

May 2017: A Month of Weather Extremes in NYC

May was a month of weather extremes is New York City this year. Highs ranged from a cool 53°F to a record warm 92°F. May also produced the city’s first heat wave of the year. However, with 24 out of 31 days posting below average readings, the chill won out in the end. The city’s mean temperature for the month was 61.1°F, which is 1.3°F below average.

In terms of precipitation, May was unusually wet. In all, 6.38 inches of rain were measured in Central Park. Of this impressive total, 3.02 inches (47% of the monthly total) fell in just a few hours on May 5, setting a new rainfall record for the date. Another 1.61 inches came down during an unseasonable nor’easter on May 13. On average, the Big Apple gets 4.19 inches of rain for the entire month of May.

Credit: The Weather Gamut

Unseasonable Nor’easter Soaks NYC

An unseasonable nor’easter soaked the northeastern US this Mother’s Day weekend. Heavy rain and gusty winds were reported across the region.

Here in New York City, 1.61 inches of rain fell in Central Park. This impressive total was only a few one-hundredths on an inch shy of the daily record of 1.66 inches that was set in 1971.

This storm also marked the second consecutive wet weekend for the Big Apple. Last Friday, a record-shattering 3.02 inches of rain came down in just a few hours. Between these two storms, the city has already received more precipitation than it typically sees for the entire month of May.

With an area of low pressure intensifying as it traveled north along the Atlantic coast, this storm was a textbook nor’easter. While this type of storm is more common during the fall and winter months, they can develop any time of the year.

Satellite view of the unseasonable May nor’easter. Credit: NOAA

Weather Gamut Founder Talks about NYC’s Record Rainfall on WUTV

It was a thrill to be asked back to The Weather Channel’s WUTV show on Friday. As a New York City-based contributor to their PWS network, we discussed the record rainfall that swept through the city and the numerous flooding situations it caused.

The show, which dives into the science behind different weather events, airs weeknights from 6 to 8 PM EST on The Weather Channel.

Weather Gamut writer, Melissa Fleming, talks about record rainfall in NYC on WUTV. May 5, 2017. Credit: TWC and Melissa Fleming.

NYC Breaks Rainfall Record that Stood for 146 Years

An intense rainstorm swept through New York City on Friday afternoon. With bands of heavy downpours, it unleashed more than half a month’s worth of rain in just a few hours.

According to the NWS, 3.02 inches of rain was measured in Central Park, setting a new record for the date. The previous record of 1.55 inches had been in place since 1871. On average, the Big Apple gets 4.19 inches of rain for the entire month of May.

The heavy rain disrupted travel across the city, with flash flood warnings issued in all five boroughs. Significant delays and cancellations were also reported at the area’s airports.

This type of heavy rain event, according to NOAA, is expected to become more common in the northeast as global temperatures rise and precipitation patterns change.

Flooding on NYC’s West Side Highway. Credit: New York Patch

A Look at Why Death Valley is the Hottest, Driest, and Lowest Place in US

Death Valley National Park is famous for being the hottest, driest, and lowest place in the United States. The interesting thing about all these extremes, as I learned during a recent visit, is how they interconnect.

Situated in eastern California near the Nevada border, the park’s topography is known as basin and range. This is where the earth’s crust is rifting apart, creating mountains in some areas and deep basins in others. Death Valley is a long, narrow basin that reaches a depth of 282 feet below sea level. It is also in the rain shadow of four different mountain ranges to the west – the Coastal Range, the Sierra Nevada, the Argus Range, and the Panamint Range.

As storms move inland from the Pacific, they must rise up and over each range. In doing so, they cool and their water vapor condenses into rain or snow that falls on the western side of these mountains. By the time a storm system reaches Death Valley, it has lost most of its moisture. The average annual rainfall in the park, according to NOAA, is just 2.36 inches.

These dry conditions, along with the valley’s below-sea-level elevation, help to produce the park’s famous heat. With cloud free skies and sparse vegetation, a maximum amount of sunlight can reach the ground. The rocks and parched soil absorb the heat and radiate it into the air. The warm air rises but becomes trapped by the steep valley walls. After cooling slightly, it is recycled back toward the valley floor where it is heated even further by atmospheric compression. During the summer months, this process generates hot winds and sizzling temperatures. The average high temperature in the park ranges from 67°F in January to 116°F in July. The hottest temperature ever recorded was 134°F on July 10, 1913 – a world record.

Looking ahead, as the climate changes, the southwestern region of the US is expected to become even hotter and drier. It seems like only a matter of time before Death Valley breaks its own heat record.

At 282 feet below sea level, Basin in Death Valley National Park is the lowest point in the US. Credit: Melissa Fleming

Intense Rain Puts a Big Dent in California’s Drought

Over the past week, a cavalcade of intense rain and snowstorms battered the west coast of the US and put a major dent in California’s five-year drought.

According to the latest report from the US Drought Monitor, the northern third of the Golden State is now drought free. This is a major change from just three months ago, when the entire state was in some form of drought.

Across the region, copious amounts of precipitation were reported. More than a foot of rain fell in the Sierra Nevada, with 20.7 inches measured locally at Strawberry Valley, CA. Higher elevations saw tremendous snowfall totals. Heavenly Ski resort in South Lake Tahoe, according to the NWS, received an incredible 12 feet of snow in just one week.

These staggering totals came courtesy of a weather phenomenon known as an “atmospheric river”. These are narrow, but intense bands of water vapor sourced from the tropics. Often originating near Hawaii, this fire hose of moisture is sometimes called a “pineapple express.”

While this excessive rainfall did cause flooding events across the region, reservoir levels have benefited. Lake Shasta, the largest largest reservoir in California, is currently at 81% of total capacity and 126% of its historical average for the date.

Southern California also picked up some much-needed rainfall, but still remains in drought. That said, only 2% of the state is currently in exceptional drought, the worst possible category.

Northern California is drought free for the first time in five years. Credit: US Drought Monitor