Chilly? Blame Omega Block weather pattern

Published: Tuesday, May 03, 2016 @ 12:47 PM
Updated: Tuesday, May 03, 2016 @ 12:47 PM

April was quite a roller coaster as far as temperatures were concerned, with cooler air returning as we wrapped up the month.

However, there were enough warmer days during mid-April to keep the overall temperature average for the month just about half a degree below normal.

Cooler than average temperatures have returned and will likely stick around the rest of this week. Average highs for this time of year are in the upper 60s.

An “Omega Block” in the jet-stream pattern will keep the pattern cool from the Ohio Valley into New England. The pattern is called an Omega Block because the upper-level weather features and jet stream look like the Greek letter Omega.

The pattern can get locked for several days – blocking weather systems from the west from moving eastward. Temperatures are usually cooler than average on the east side of the block, which is where the Ohio Valley will reside for most of this week. This will keep high temperatures in the lower to middle 60s through at least Thursday.

The weather pattern is expected to finally shift into a warmer pattern this weekend as the block slowly shifts east, allowing winds to become more southerly as opposed to northerly. This will allow warmer air that is building in the southern U.S. to shift northeastward into the Midwest and Great Lakes. When that happens, temperatures will rise back in the 70s and perhaps near 80 degrees, with the threat for any frost finally coming to an end.

As far as precipitation is concerned, despite occasional bouts of showers and storms, overall precipitation amounts will likely stay below normal.

For the month of April, the Dayton International Airport, the official measurement location, received 2.95 inches of rain; the average for this time of year is 4.09 inches — which put us more than an inch below normal.

However, the wet winter has our annual precipitation running above average by about three-quarters of an inch.

Eric Elwell is WHIO StormCenter 7 Chief Meteorologist. Contact him at eric.elwell@coxinc.com or follow him on Facebook and Twitter.

Rain returns to start the work-week

Published: Sunday, October 22, 2017 @ 7:16 AM

We can expect a sunny Sunday, with warmer temperatures in the middle 70s, according to Storm Center 7 Meteorologist Brett Collar.

Rain will move in Monday, especially during the afternoon and evening. Highs will be in the middle to upper 60s.

QUICK-LOOK FORECAST

  • More sun and warm today
  • Rain moves in Monday
  • Cooler temperatures Tuesday and Wednesday

DETAILED FORECAST

Today: A mix of sun and clouds is expected Sunday. Highs will be in the middle 70s.

(Graphics by: Storm Center 7 Meteorologist Brett Collar)

Tonight: We'll see a few more clouds overnight tonight. It'll be a mild night with lows in the middle to upper 50s.

Monday: Showers move in on Monday, some of which could be heavy at times. The best chance to see the steady and possibly heavy rain will be in the afternoon and evening hours. While the chance for storms Monday isn’t all that high, we can’t rule out a rumble of thunder or two. Highs Monday will be in the middle to upper 60s.

Tuesday: A few lingering showers are possible Tuesday under mostly cloudy skies. Highs will be in the middle 50s.

Wednesday: A cool day is on tap for Wednesday. Highs will be in the lower 50s and while the chance for rain is small, a couple of passing showers can’t be ruled out.

Thursday: We should dry out Thursday under partly cloudy skies. Highs will be in the upper 50s.

Rain returns to start the work-week

Published: Sunday, October 22, 2017 @ 5:02 AM

A pedestrian tries to keep dry on Clematis Street. (Lannis Waters / The Palm Beach Post)
Lannis Waters/Palm Beach Post Staff Writer
A pedestrian tries to keep dry on Clematis Street. (Lannis Waters / The Palm Beach Post)(Lannis Waters/Palm Beach Post Staff Writer)

We can expect a sunny Sunday ahead and warm temperatures, according to Storm Center 7 Meteorologist Brett Collar. 

Rain should move into the area by Monday afternoon and evening, when the greatest chances will be.  Highs will be in the middle to upper 60s.

QUICK-LOOK FORECAST

  • More sun and warm today
  • Rain moves in Monday
  • Cooler temperatures Tuesday and Wednesday

DETAILED FORECAST

Today: A mix of sun and clouds is expected Sunday. Highs will be in the middle 70s.

(Graphics by Storm Center 7 Meteorologist Brett Collar)

Tonight: We'll see a few more clouds overnight tonight. It'll be a mild night with lows in the middle to upper 50s.

Monday: Showers move in on Monday, some of which could be heavy at times. The best chance to see the steady and possibly heavy rain will be in the afternoon and evening hours. While the chance for storms Monday isn’t all that high, we can’t rule out a rumble of thunder or two. Highs Monday will be in the middle to upper 60s.

Tuesday: A few lingering showers are possible Tuesday under mostly cloudy skies. Highs will be in the middle 50s.

Wednesday: A cool day is on tap for Wednesday. Highs will be in the lower 50s and while the chance for rain is small, a couple of passing showers can’t be ruled out.

Thursday: We should dry out Thursday under partly cloudy skies. Highs will be in the upper 50s.

Rain returns to start the workweek

Published: Saturday, October 21, 2017 @ 5:38 AM
Updated: Saturday, October 21, 2017 @ 5:40 PM

Saturday evening weather update with Meteorologist Brett Collar

A few lingering clouds are possible overnight, but for the most part we should be seeing more clearing, Storm Center 7 Meteorologist Brett Collar said. Temperatures will be in the lower to middle 50s overnight.

QUICK-LOOK FORECAST

  • Dry conditions this weekend
  • Rain moves in Monday
  • Cooler Tuesday and Wednesday

>>Fall colors near peak

5-Day Temperature Trend(Graphic by Storm Center 7 Meteorologist Brett Collar)

DETAILED FORECAST

Sunday: A mix of sun and clouds is expected. Highs will be in the middle 70s.

Monday: Showers move in, some of which could be heavy at times. The best chance to see the steady and possibly heavy rain will be in the afternoon and evening hours. While the chance for storms isn’t all that high, we can’t rule out a rumble of thunder or two. Highs will be in the middle to upper 60s.

Tuesday: A few lingering showers are possible under mostly cloudy skies. Highs will be in the middle 50s.

Wednesday: A cool day is on tap. Highs will be in the lower 50s and while the chance for rain is small, a couple of passing showers can’t be ruled out.

Thursday: We should dry out under partly cloudy skies. Highs will be in the upper 50s.

Clear skies for meteor shower this weekend

Published: Wednesday, October 18, 2017 @ 5:53 AM
Updated: Saturday, October 21, 2017 @ 3:20 AM

Meteorologist Kirstie Zontini has a look at how cool we get and how active the meteor shower will be this weekend.

After finding Venus and Mars early in the week, another special treat awaits you in the early morning sky this weekend! 

>> Advice for best viewing of meteor shower

The Orionid meteor shower will put on a good show Friday night into Saturday morning, and Saturday night into Sunday morning.

Debris from Haley's comet will hit Earth's atmosphere. The Orionid shower gets its name because the meteors look like they are coming  from the constellation Orion. This year, 10 to 30 meteors per hour are possible. 

>> Warming trend continues; lower temps arrive next week

This weekend skies will cooperate for great viewing of the Orionid meteor shower!

Temperatures will drop into the middle 50s overnight Saturday into Sunday. The moon will set around 8:14 p.m. so skies will remain dark. Some high clouds will be out there Saturday night, but overall it will still be a good night to view.

>> #SkyWitness7

Get outside and grab a blanket, find a dark spot with a good view of the sky and let your eyes adjust to the darkness. If you capture any photos share them using the hashtag #SkyWitness7!