Quakes, Post Tropical Storms and Labor Day

Many felt the earth move under their feet this morning as a powerful 5.6 quake struck an hour north of Oklahoma City near Pawnee. This quake could equal the strongest one ever recorded in Oklahoma. It was felt down in Houston and up thru Nebraska. . The strongest quake ever felt in the Lone Star state? A 5.8 quake back in 1931 near Valentine, Texas.

quake Quakes, Post Tropical Storms and Labor Day

There was a 3.6 aftershock an hour later in the same area this morning in Oklahoma. That 3.6 would qualify as one of the strongest quakes EVER recorded in north Texas (there was a 4.0 in Venus last year). More aftershocks are possible.

We get quakes around here in north Texas, like Oklahoma small quakes started being felt around 2008 as disposal wells went into service injecting fracking water deep beneath the earth’s surface. The geology is different in Oklahoma, that area has seen much seismic activity. Compare 2015 numbers: a 50 mile radius around DFW Airport (80 quakes last year 1.6 or higher) with the same sized area around Stillwater, OK (1,686 2.0 or higher).

quake compare

Fortunately for north Texas the amount of earthquakes has dropped off in 2016 as the gas field in the Barnett Shale slowed down to near zero as times. We’ve had just one so far this year 1.6 or higher- it was a 2.7 quake around Mansfield back on February 4th.

Quakes by Year

There is also (now) Post-Tropical Storm Hermine to discuss. This morning it was just offshore in North Carolina with 60mph winds and moving out to sea. Even though it is no longer a “tropical” storm the National Hurricane Center learned it’s lesson from Sandy back in 2012 and will continue to issue advisories on the storm. Strong winds will likely nip the Jersey shore by later tomorrow night:

Tropical Wind Radii

The storm will tighten and hold off the New Jersey shore for the next two days. High winds are expect along the coastline up to New York along with high surf. The heaviest rain will be just along the shore- this will be more a wind storm than a rain storm for most of the east coast:

Tropical - NHC Hurricane Winds

Around here? Not a bad Labor Day weekend in store for us. Today the humidity not so bad with an east wind:

Labor Day - Construction

That changes by Monday. High pressure over the Gulf shoreline will pump in humid air from the south. It’ll also inspire some rain chances here in north Texas:

TX Water Vapor Contour TX Water Vapor Contour1

Chances stay small and mostly south of the Metroplex thru the holiday:

TX Rain ChancesMON TX Rain ChancesSUN

For the short work week coming up it’ll be dry, humid and hot.

INT - Extended AM CSV

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