Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
?? Wha? How do you figure? That's like saying we don't get these fronts/short waves/bands coming across with dewpoints below 50. Far from the truth. Dew points nothing to do with todays rain/storms.
Is this a cold front? I didn't think it was. The dew points have added to the instability and moisture in forming the system. This isn't the sort of band one would get with dew point of 50°F
This isn't the sort of band one would get with dew point of 50°F
No? Now you're gonna make me dig huh.
How about March 26, 2015.
Dewpoints were in the 30s in the morning in Harrisburg, then rose as the moisture and line of storms moved in. Storms didn't happen because dewpoints were high. They were in the 30s/40s! and 40s here.
Dewpoints only help fuel Tornadoes and those Supercell Thunderstorms. YES, it's part of the equation, but NO, it's not the reason for today and YES we get these lines with dry dewpoints.
These bands and storms form with dewpoints in the 30s as well. I see it all the time.
But that's in late March, of course Dew Points won't fuel those storms. I think the instability of two contrasting air masses meeting is more important for storms during that time of year than DPs. Severe Weather Season is in March/April in the Great Plains for that reason.
When I speak of dew points, I'm speaking specifically of convectional precipitation, not frontal. There's a big difference.
A dew point of 50 F in May wouldn't be too different from dew points behind the front, but in March it would be.
But that's in late March, of course Dew Points won't fuel those storms. I think the instability of two contrasting air masses meeting is more important for storms during that time of year than DPs. Severe Weather Season is in March/April in the Great Plains for that reason.
When I speak of dew points, I'm speaking specifically of convectional precipitation, not frontal. There's a big difference.
Except most of our precipitation isn't convectional except maybe mid-summer. Even then, usually bigger storms get some extra kick. Dew points may not fuel storms in June, either.
Edit: Thinking about this storm, it's not really a frontal storm, check to the west, there's little cold air to the west of it; just a cool patch right after the storms passed through (Oneonta, NY is 72°F with 100% humidity right after the storm passing through). It's a shortwave. The high dew points probably gave the short wave an extra kick of instability and moisture.
Except most of our precipitation isn't convectional except maybe mid-summer. Even then, usually bigger storms get some extra kick. Dew points may not fuel storms in June, either.
But that's what I was talking about when we were in the discussion of dry vs. humid heat. Humid heat is good for convection, dry heat isn't. That's why I prefer it. I'd rather 90 F with a 72 F DP than 90 F with a 55 F DP for that reason.
And yeah I don't think you guys are hot or humid enough to get lots of convectional precipitation. I think it would way more common from roughly Philly and points southwards.
And I wouldn't expect anywhere to get convectional precipitation in March lol. That time of year most precipitation is probably frontal or from low pressure systems.
I feel like it could just as well, stalled front on a cool June day...
Yeah but it would be frontal, not convectional.
When I was talking about dew points fueling storms, I was talking specifically during hot weather. Obviously you're not going to have DPs in the 70s or hot weather in December or March.
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.
Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
