Cooler Weather And Rain Arrive

July 16th, 2014 at 9:19 am by under Weather

As expected, things got pretty rough yesterday for parts of our area. We had many reports come in of trees down over sections of Virgina Beach.  Here was one photo sent it from Brie Sanders.

Tree Down, Virginia Beach

Tree Down, Virginia Beach

While there were only a handful of official reports from the Storm Prediction Center, we also had many unofficial reports come in. Here are the official reports:

Storm Reports

Storm Reports

In the reportit@wavy.com folder, I saw one report of part of tree down in Suffolk.  I saw one report of a limb down in Hampton.  On the official report I noticed that there was a wind gust report to near 60mph in Yorktown (yellow dot).  I didn’t see any damage reports from there, but I had one viewer on facebook say that they were on the Coleman bridge when that happened.  They said it was very scary, and they were surprised the report wasn’t higher.  I wouldn’t want to be on the Coleman bridge during any type of storm. That thing is taalllll.

It was interesting to watch. The weather was very quiet at the noon hour.  Then within about 45 minutes, the storms flared up.  They started inland and then pushed northeast.  Here is what it looked like around 3:30pm.

Satellite/Radar Yesterday

Satellite/Radar Yesterday

Showers and storms continued on and off during the overnight.  Then this morning they became some light/scattered showers.  Here are the rain totals for the last 24 hours.

24 Hour Rain Totals

24 Hour Rain Totals

The rain from Elizabeth City all fell this morning.  My weather watcher in Currituck had nothing from yesterday, then he also picked up about 0.8″ between about 6 and 8am.  There was a whopping 2.76″ of rain at West Point, but Don in Toano only had 0.67″.  Oceana missed a lot of the rain, but I believe northeast Chesapeake and northern Virginia Beach had about 1-2″.  There was some street flooding reported there.

Today a cold front is still moving through the region, but very slowly.  There is also a weak area of low pressure creeping along the front.  So the rain will hang on for a little while longer.

Today's Forecast

Today’s Forecast

The models hold onto the rain through about the mid afternoon.  Then the drier weather should take over and end the rain.  We’ll dry out tonight with low in the 60s.  There may be some patchy fog.  Then tomorrow looks great.  We’ll see mostly sunny skies with highs in the mid 80s.  Winds will be northeast at about 8-12mph.  We’ll see nice weather on Friday and Saturday too.  Just a slight chance for a shower on Saturday.  There’s a little higher chance for rain on Sunday, but the models keep going up and down with the rain chances.  So stay tuned if you have outdoor plans.

Now I looked at some of the technical stuff for yesterday’s storms.  There are some differences between last week’s and yesterday’s weather.  So I’m going to get very nerday ( I made that up) for this paragraph.  Anyone afraid or bored can skip to the end. Ahem… So yesterday we had a lot of instability.  According to the  SPC forecast tools, we started to see a CAPE (Convective Available Potential Energy) of about 4,000-4,500 J/Kg.  that is huge.  Plus, we had some upper level winds move in.  The 0-6km shear was about 30 knots.  That’s not too impressive, but it’s enough.  That’s also about the same as last Thursday.  However, yesterday we were in a wider area of those winds.  Last Thursday we had a jetsreak at the 700mb (millibars) level. We didn’t have that this time, but we did have some upper level divergence around the jetstream level (300 mb).  This means that winds were set up to spread out in the upper levels.  This promotes rising air underneath to take its place. Which is what storms like.  We had a lifted index of -7 to -8 yesterday.  That is also very unstable.  So the storms yesterday occurred on a larger scale.  (Basically the whole east coast).  They exploded around 1 in the afternoon.  They were roaring for a couple of hours, but then the outflows became widespread.  This shut off a lot of the storms as most temps dropped into the 70s.  So things quieted down during the evening.  Since the cap wasn’t too strong yesterday, the storms didn’t get a chance to build as tall as last week.  So there were few reports of hail yesterday. Also, I believe that there was a pocket of cooler weather at 700mb last week with that jetstreat, but I can’t prove it.  Either way, I am ready for some quieter weather.

The tropics are quiet right now.  Our weather will be quiet for a few days.  So enjoy the peace.  Seems like mother nature has had a little bit of high blood pressure lately.  This weekend is the Jazz Festival in Norfolk.  So let’s hope the weather stays calm for that.  Plus, Don Roberts is going to throw out the first pitch at the tides game on Friday.  We HAVE to have nice weather for that event.  Otherwise Don might have a bad throw.   :  )

Meteorologist: Jeremy Wheeler

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