For everybody on the East Coast who wanted a warm, sunny holiday weekend, they certainly got what they wished for. As mentioned in an earlier post, The Mid-Atlantic up through New England baked earlier this week as monster ridge of high pressure set up shop and didn’t budge for nearly a week. While the actual weekend was pretty toasty, Tuesday and Wednesday were the hottest of this whole episode. Most areas in southeastern NY, CT, NJ, and eastern PA cracked 100 Wednesday, and Newark topped 100 for 4 straight days, only the third recorded instance of that happening (1953 and 1993). What’s more remarkable, given the sheer volume of people living in the area affected by the worst heat, was the fact that (as of last reported count) only 5-6 people died as a direct result of the heat. This goes to show that word got out well ahead of the heat wave about its’ intensity and knew where to go to keep cool. Hopefully that count stays low when the official total comes in. In any event, it’s clear that people have learned from the 1995 Chicago heat wave how to take care of themselves and others. Kudos!
The difference between a summer and winter ridge is that in the winter, clear skies over night mean that temperatures over night plummet to well below zero. This is most common in the interior of the country, where they are far away from the warming effects of the ocean. In the summer, the persistently sunny skies inevitably lead to warming conditions. This is the case along the east coast, as you may have heard, where they haven’t had any rain or cause to break up the sunshine for over a week, and temperatures have responded by climbing into the upper 90s, even triple digits in some of the larger cities which will be aided by the concrete and asphalt in their quest for higher temperatures.
The east coast is also aided by the fact that the atmosphere isn’t as soupy in the mid Atlantic as it is further south in places like Atlanta and Birmingham, so the lower moisture don’t inhibit temperatures looking to skyrocket. Temperatures will continue to be toasty tomorrow for the east coast, and by toasty, I mean dangerously warm, in the neighborhood of 100+ degrees for many cities. Thursday may finally spell relief when a low in the Atlantic could bring some clouds and cooler weather.
It should be noted that with the flow of ridges, it is typically stagnant underneath them, as with the Megalopolis, however on the western flank, there is southerly flow, which could mean warmer temperatures, and almost certainly soupy weather in the Mississippi Valley as well, though there will be more widespread thunderstorms for residents there to cool off with.
Stay cool, residents from Concord to Charlotte! Only a couple more days to go!
Tropical Storm Alex is churning in the Bay of Campeche and now appears destined to make landfall south of the Rio Grande, but near enough to the US that it will certainly cause some consternation. This system has been incredibly difficult to get a bead on. Early in it’s life cycle, it appeared as though the system would split the gap between the western tip of Cuba and the northern reach of the Yucatan, which would have allowed the storm to intensify rapidly before making a land fall somewhere in the eastern Gulf Coast.
Next, after model guidance had a better handle on it’s directionality, there were questions about how the storm would hold together as it crossed the Yucatan. It appeared that he would be able to maintain enough circulation that he wouldn’t send too much thunderstorm activity north into the central Gulf Coast. Well, Alex tracked over Belize and the southern, wider part of the Yucatan and was almost pulled apart. Now weakened, it appeared Alex would trudge slowly across the southern Bay of Campeche and make landfall as a weak hurricane at most, if it was able to get organized.
Well, now it has taken a northerly turn and is taking its time across the Gulf, getting stronger and better organized as he goes. Right now, it seems as though he will make his landfall late Wednesday night or tomorrow morning. The way it’s gone so far, however, I wouldn’t be surprised to see his track shift a little bit further north and into Brownsville. Here is the official track at this time.
As meteorologists, we always look at what other people are forecasting for various things: tornado outbreaks, an upcoming blizzard, intense heat wave, etc. One of those would also be the upcoming Hurricane season! The 2010 Atlantic hurricane season officially started on June 1, and it’s been a quiet start so far. One tropical wave is moving through the Caribbean south of Hispaniola, but is having a tough time doing much of anything. In an earlier post, we mentioned that various forecasters were forecasting an above average hurricane season, with something around 14 named storms. Other outlets went slightly higher with 15-17. One of them, however, not only takes the cake with his recent updated forecast, but also the way he displays the information.
Ladies and Gentlemen, your 2010 Captain Obvious Award goes to Joe Bastardi of Accuweather! If you wish to check out his newly updated 2010 Hurricane Outlook and refresh yourself, click on the link. Also, it will give you an idea of why he wins the Captain Obvious Award. First, he INCREASES his outlook for the season from 16-18 to 18-21! Only 3 seasons have had 18 or more named storms (that I can remember anyways), so to predict such a prolific season is pretty tough to put out there. What is most annoying, however, is how the graphics and data he says which he emphasizes as critical information… isn’t very ground-breaking in the least.
First, look at the Threat Zones graphic. The area of Biggest Threat goes from Louisiana to the Outer Banks of NC. Now lets take a look at the climotological best tracks for storms in the months of September and October, typically 2 of the most active months of the season.
So, the area of Biggest Threat… is the normal area that’s under the gun. Every. Single. Year. If I didn’t know fancy graphics didn’t exist back in the 60s you could use that same graphic for the season Hurricane Camille roared ashore. Making a fancy image showing information that is normal doesn’t make it any more informational, just grabs peoples attention and scares them. Then again, to everybody from New Orleans to Miami to Myrtle Beach, I’m pretty sure they know the danger they’re in each year.
So he predicts the heart of the tropical season to be… directly when the season normally peaks. Way to go out there on a limb Joe. The 1933 Hurricane Season peaked at the same time (2nd most active on record). The 2005 Hurricane Season peaked at the same time (most active on record). Even the way overforecasted 2009 Hurricane Season peaked at the same time. Him telling us that time frame is of crucial importance, isn’t any different than any other year, active or not.
So for that, Mr. Bastardi wins the award for making a big deal out of weather phenomena that naturally occur in a certain timeline and normal paths on an annual basis. Oh, and for also predicting possibly the 2nd busiest season on record. If it does indeed happen, I’ll be the first to eat a slice of humble pie. Until then, we’ll let the Atlantic do the talking.
Statistics are still being parsed, but it appears a tornado outbreak on that day was the most prolific in the history of the state. The towns of Wadena, Mentor, Algora and Kiester will never be the same. Several other towns were struck, though Wadena, a regionally important city of about 4500 was devastated, and there were deaths in Mentor, Algora and near Kiester.
The Minneapolis Star Tribune had an excellent piece on this Father’s Day about Wes Michaels, the man who lost his life in Mentor, which is in the northwestern corner of Minnesota, who died protecting his daughter at the gas station he owned.
The article is poignant and sad, however his death underscored a danger highlighted by these storms. Weather services across three states, the Dakotas and Minnesota, did an excellent job giving people proper warning. The city of Wadena, for example, had 36 minutes between the time the sirens went off and the tornado sweeping into town. Michaels was watching The Weather Channel (reportedly a favorite of his) and actually had time to drive to the gas station to ensure the safety of his daughter and customers, ushering them into the freezer.
This is the problem that was exposed by the storms. The three deaths that occurred were because of unsafe places of refuge. The other two were killed when their mobile homes were tossed. The safest place to endure such weather is always below ground. Wes Michaels couldn’t get there, but found the next safest place, and there were 4 other people in that freezer that are alive to thank him for that.
Hopefully we won’t have to hear any more tragedies like this on this Father’s Day, however there is a dangerous situation setting up again today, this time through South Dakota and Nebraska, with most of the states under the gun. Here’s hoping YOU have a happy Father’s Day, no matter what the weather may be.
With the official start of Summer just a few days away, and kids across the country enjoying a couple of months with nothing to worry about, another meteorological danger lurks about that not many people really pay attention to. Temperatures will continue to be heating up over the country, along with more humid conditions, leading to heat indicies often soaring over 100. The Heat Index is the apparent temperature felt by a human in hot conditions, much like how the Wind Chill does the opposite for cold conditions. Some minimum requirements must be met, however, for a Heat Index to be calculated, and those being:
1) Actual temperature is above 80F
2) Dew Point is higher than 54F
3) Relative humidity is higher than 40%
Once the Heat Index gets above 100F, dire consequences can result of prolonged activity outside without seeking occasional relief in shade, air conditioning, or replenished fluids. Recently i was in Las Vegas when it was 106F (the day before it was 110F, the earliest Sin City had ever reached 110F), but even though it felt blistering hot when I stepped outside, I’ve encountered far worse conditions living in NC. Countless days during the summer there I would go outside to get the mail in the middle of a 94-degree day with a 72-degree dew point. Those numbers equate to a 104 heat index, which is perilously close to the Danger Zone (no, not the Kenny Loggins hit). In this zone, heat cramps and heat exhaustion are quite possible if one doesn’t seek relief, and continued exposure can lead to heat stroke (which I myself have nearly been a victim of). In the “Absolutely Ridiculous” department, the world record was set back on July 8, 2003 in Dhahran, Saudi Arabia, when the temperature topped out at 108. More incredibly, the dew point was 95F, which calculates to a mind-numbing 172F!
So this summer when you’re out at family picnics, baseball games, or a nice 6-mile run outdoors, be sure to keep cool and plenty of fluids nearby and you’ll have a great summer! Stay safe readers!
Since it’s Sunday, and I have pretty much discussed the two longstanding patterns across the United States, the continued pattern of showers and thunderstorms across the northern tier, and that mid level low that has dropped so much rain from San Antonio to the Ozarks (something that has been far more tragic than I’ve mentioned to date. Massive flooding events are so tragic, but nobody pays attention to them because they aren’t as dramatic as, say a tornado, for example). Since I have covered the weather, like I said, I thought I would direct you to this quiz on Sporcle: can you name the National Weather Service’s event warnings?
The Weather Service issues warnings that aren’t just for weather, since they have the best access to the government’s warning system. There were a lot of complaints in the comments because many didn’t understand that it was only for “warnings” and not advisories (such as dense fog).
If you want a more complete look at all the warnings that you could receive from the NWS, check out their FAQ page. Let’s just say I’m happy that I’ve never been under a Nuclear Power Plant Warning.
Lately, we have had a fairly constant pattern, with a west to east jet drifting across the northern part of country, with the occasional undulation rippling along it, generating weak areas of low pressure that have trekked east. For the most part, they have kicked up some streaks of showers and thunderstorms along weak cold fronts, and most of all have produced steady rainfall for the northern tier of states.
The map above is the comparison to average rainfall for the month to date. As you can see, most all regions for the northern states are at or above average for rain so far. South of the line, they haven’t seen their standard rain, because there hasn’t been the systems with enough energy to sweep boundaries that far south. Nebraska has been especially wet with large thunderstorms as the surface lows have tried to organize right on top of them. This map is a pretty good indicator of the unchanging pattern.
Additionally, check out that nice dark blue streak through east Texas into Arkansas. That is the infamous blob that brought about a foot of rain to some spots. Too bad that rain couldn’t be distributed to other parts of the country.
A massive blob of rain has slowly worked its way north from near San Antonio to Dallas and now in the Tyler area, and has dumped as much as NINE inches of rain on some locations. It certainly looks impressive on radar:
What’s even more impressive is how little forcing it is taking to generate this low. The National Weather Service described this system as an “effective rainfall producer”. It is warm core, which just means that it is tropical in nature, not unlike a very weak, very rainy hurricane. Of course, hurricanes usually show up on surface analyses, because there is lower pressure at their core. This isn’t even a blip on the surface pressure plots. It sort of shows up in the mid-levels and even then, it’s very week. It doesn’t look like much.
Until you look at the output at the surface. The crazy thing is, all models have pegged this blobby mass of rain up to this point. They have even suggested the torrential rain that has been caused by the system so far. Ignoring the fact that this is the only thing the models have handled well lately, I have no reason, then, to believe that this mid level low and it’s associated wall of water won’t track through Arkansas into southeastern Missouri by tomorrow, then slowly march its way up the Ohio to Cincinnati overnight into Saturday, as the GFS posits. The good news is, the system is actually, you know, moving now, so there is a better chance that the overall rain totals won’t be up to a foot in Cincinnati, instead around the more manageable 3 or 4 inches. So that’s good.
What a weird system.