Dr. Jeff Masters' WunderBlog

Texas heat wave smashes more records; 93L more organized
Posted by: Dr. Jeff Masters, 15:26 GMT le 17 août 2011 +24
Texas' Texas-sized drought and heat wave is setting new records, as August temperatures regularly topping 100° continue to impact most of the state. The high temperature hit 102° at the Houston Intercontinental Airport yesterday, a record for the date, and the 16th consecutive day of 100°+ heat. The 16-day streak is a new record. The previous record was 14 straight days, ending on July 19, 1980.

The low temperature yesterday morning at Dallas/Fort Worth International was 86°--the all-time highest minimum temperature recorded there. This is the 4th time this summer Dallas has had an 86° minimum temperature, with the other dates being July 26, August 3, and August 4. Prior to this year, the hottest minimum temperature ever recorded in Dallas was 85° on September 1, 1939 (which they also matched this summer on July 25, August 7, and again this morning.) Thus Dallas has matched or exceeded their all-time hottest minimum temperature from previous years seven times this year. It's extremely rare for a station with a long observation history spanning more than fifty years to break an all-time record seven times in one year; if anyone can find an example of this in the past, I'd love to hear about it. The National Climatic Data Center records page is a good place to look. Dallas has had 40 days with a minimum temperature of 80° or higher this year, breaking the previous record of 39 days, set in 1998. Dallas had a streak of 40 straight days with a maximum temperature above 100° which ended August 10, good for 2nd place all-time, next to a 42-day streak in 1980.


Figure 1. The amount of rain needed to break the Texas drought is in excess of 15 inches (purple colors) over most of the state. This year's drought is officially Texas' worst one-year drought on record. Image credit: NOAA/NWS.

According to the National Climatic Data Center, twelve other major airports set or tied their all-time high minimum temperature two or more times this summer: San Angelo, TX (four times); Lake Charles, LA (three times); Bristol, TN; Indianapolis, IN; Trenton, NJ; Newark, NJ; West Palm Beach, FL; Shreveport, LA; Beckley, WV; Texarkana, AR; Lake Charles, LA; Lubbock, TX; plus, Fort Worth Meacham Field. This year's total of fourteen airports that broke their all-time high minimum temperature multiple times this summer is similar to last year's total of ten sites. Most notable last year was West Palm Beach, Florida, which tied it's all-time high minimum temperature of 83° five times in 2010.

Fifteen major airports have tied or broken their all-time highest temperature multiple times this summer: Tyler, TX (three times); Tallahassee, FL (three times); Fort Smith, AR; Harrison, AR; Tulsa, OK; McAlester, OK; Longview, TX; and Oklahoma City, OK, Ypsilanti, MI; Altoona, PA; Dubois, PA; Salisbury, MD; Raton, NM; Amarillo, TX; and Dalhart, TX. For comparison, only three stations broke their all-time maximum temperature record multiple times in 2010: Wilmington, DE; Norfolk, VA; and Richmond, VA.


Figure 2. Morning satellite image of Invest 93L.

Caribbean disturbance 93L
A westward-moving tropical wave in the Central Caribbean a few hundred miles south of Hispaniola, Invest 93L, has increased in organization overnight, building up a modest amount of heavy thunderstorms. Low-level spiral bands have begun to form on all sides of the storm this morning. There are currently no signs of a surface circulation, though there is plenty of large-scale rotation apparent on satellite imagery. Dry air surrounds 93L and has infiltrated the center of the disturbance, giving 93L a doughnut-like appearance. However, the disturbance is steadily moistening its environment and is under low wind shear of 5 - 10 knots, so this dry air should gradually mix out today and allow 93L to continue to organize. There is a hurricane hunter mission scheduled for this afternoon at 2pm EDT to see if a tropical depression is forming.

93L will bring heavy rain showers to southern Haiti this afternoon and to Jamaica tonight. By Thursday, 93L's forward motion will slow to 10 - 15 mph, and the storm will bring heavy rains to Northern Honduras and Northeast Nicaragua. These rains will spread to Belize and Mexico's Yucatan Peninsula by Saturday. The latest SHIPS model forecast shows wind shear remaining in the low range and the atmosphere steadily moistening as 93L enters the Western Caribbean on Thursday. All of the models agree that the ridge of high pressure steering 93L to the west will remain strong, forcing the storm into a landfall Friday in Northeast Nicaragua or Northeast Honduras. It is possible that 93L will have time to intensify into a Category 1 hurricane before then, though landfall as a tropical storm would be more likely, given the dry air that 93L needs to overcome. Regardless of development, the storm will bring very heavy rains of 4 - 8 inches or more to Nicaragua and Honduras. These rains are likely to cause dangerous flash flooding and mudslides. NHC gave 93L a 30% chance of developing into a tropical depression by Friday morning in their 8am outlook; I'd put these odds at 50% now, given the continued increase in organization seen on satellite images.


Figure 3. Morning satellite image of the tropical wave 500 miles west-southwest of the Cape Verde Islands.

Elsewhere in the tropics
A tropical wave near 14°N 34°W, about 500 miles west-southwest of the Cape Verde Islands off the coast of Africa, is moving westward near 15 - 20 mph. This wave has little heavy thunderstorm activity associated with it due to dry air, but an impressive amount of large-scale spin is obvious in visible satellite loops. This wave is expected to arrive in the Lesser Antilles Islands by Saturday. Three of our four reliable models for predicting tropical storm genesis predict that this wave could develop into a tropical depression sometime Friday through Sunday. A west-northwest track through the Northeast Caribbean bringing the storm near Puerto Rico by Sunday or Monday is favored by most of the models.

Jeff Masters
Tanker Drop (anm8ed)
This fire destroyed 15 homes and burned about 30 acres. Was nothuge, but was in a populated area.
Tanker Drop
Jet Ski dock (BEENE)
Business is slow here this summer.
Jet Ski dock
The Marina (BEENE)
Lake Houston is dangerously low as well. They will be draining 12inches of water to ease the water shortage in Houston
The Marina
Categories: Drought Heat Hurricane
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1102. Skeptic33 22:46 GMT le 17 août 2011    
Quoting aislinnpaps:


I'm close to Natchitoches. I just googled them for hurricanes and it said they rarely ever go down. It's not swampy where my house is, but they just might do the trick! Thanks, I'll look more into them.


You don't need swampy land to grow them. Most years, you get enough rainfall to sustain them. We have many of them in Dallas-Ft Worth area and we get less rainfall. They'll do great at your place! :)

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1104. WxLogic 22:47 GMT le 17 août 2011    
SE CONUS Coast "Hugger":



18Z represented a slight left bias from 12Z but basically the same.
Member Since: 14 août 2008 Posts: 4 Comments: 4666
1105. KEEPEROFTHEGATE (Mod) 22:47 GMT le 17 août 2011    
1
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1106. washingtonian115 22:47 GMT le 17 août 2011    
Quoting twincomanche:
93L is doing a disappearing act right in front of our eyes.
Kinda like Don.
Member Since: 14 août 2010 Posts: 5 Comments: 10598
1108. ElConando 22:47 GMT le 17 août 2011    
Quoting WxLogic:


If it gets to that size... is going to definitely be huge.


That's what she said!!!

:P couldn't resist.

Anyways 8 days is a long way out, lets see this puppy develop first.
Member Since: 6 septembre 2009 Posts: 2 Comments: 3703
1109. aislinnpaps 22:48 GMT le 17 août 2011    
Quoting Skeptic33:


You don't need swampy land to grow them. Most years, you get enough rainfall to sustain them. We have many of them in Dallas-Ft Worth area and we get less rainfall. They'll do great at your place! :)



Thanks, Skeptic! I'll be looking for them around here. I've always associated them and seen them in and around bayous.
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1112. TropicalAnalystwx13 22:49 GMT le 17 août 2011    
I see a smiley face.



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1113. stormpetrol 22:49 GMT le 17 août 2011    


Pressure are now falling in the path of 93L
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1114. weathermanwannabe 22:50 GMT le 17 août 2011    
Quoting islander101010:
but you should have the list including a full tank of gas


Agreed..........But the Blogger has missed the point ("Chill Out".....Please). It is highly offensive IMHO to see younger bloggers (and no offense to the good ones who actually do analysis) who have never experienced the destruction of a hurricane and impacts on families egg a major on so to speak.

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1116. Thrawst 22:52 GMT le 17 août 2011    
Link

NAM model spins up home grown mischief north of the Bahamas... AGAIN. goes out to see quickly... but probs another name gone like that.
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1117. Gearsts 22:52 GMT le 17 août 2011    
Quoting JLPR2:


Usually talking too much about it usually sends it away. XD
Omg that is so true lol
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1118. WxLogic 22:52 GMT le 17 août 2011    
Quoting ElConando:


That's what she said!!!

:P couldn't resist.

Anyways 8 days is a long way out, lets see this puppy develop first.


lol... the way I see it, if it's able to get strong enough to survive a trek through the Carib. Islands then the rest is another story.
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1120. KEEPEROFTHEGATE (Mod) 22:52 GMT le 17 août 2011    
1
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1121. CybrTeddy 22:52 GMT le 17 août 2011    
17/1745 UTC 15.5N 74.5W T2.0/2.0 93L
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1122. scott39 22:53 GMT le 17 août 2011    
My daughter came home from School today and said "Daddy can you help me with homework"? I said "sure sweety what is it"? "I need help with some kind of weather models". "My History teacher is a hurricane NUT like you,and said that she would give some extra credit to whoever got the closest to where landfall would be in the US. NO JOKE!! So what would be the safest bet? FL.? I will be going to meet this History teacher! LOL
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1123. barotropic 22:53 GMT le 17 août 2011    
Quoting weathermanwannabe:


Agreed..........But the Blogger has missed the point ("Chill Out".....Please). It is highly offensive IMHO to see younger bloggers (and no offense to the good ones who actually do analysis) who have never experienced the destruction of a hurricane and impacts on families egg a major on so to speak.



+10.....I do think there r a couple on here right now intentionally....rubbing it in. I would just ignore them
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1124. islander101010 22:54 GMT le 17 août 2011    
Quoting weathermanwannabe:


Agreed..........But the Blogger has missed the point ("Chill Out".....Please). It is highly offensive IMHO to see younger bloggers (and no offense to the good ones who actually do analysis) who have never experienced the destruction of a hurricane and impacts on families egg a major on so to speak.

it will be interesting the way the season pans out jb is hyping the next wave coming off of africa strongest since donnna
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1126. MiamiHurricanes09 22:54 GMT le 17 août 2011    
Quoting ElConando:


That's what she said!!!

:P couldn't resist.

Anyways 8 days is a long way out, lets see this puppy develop first.
LMAO. I agree, but definitely something to keep a weary eye on as the tropical wave nears closer.
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1128. Tazmanian 22:55 GMT le 17 août 2011    
poor JFV
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1129. earthlydragonfly 22:56 GMT le 17 août 2011    
Evening everyone.... Im in the market for a new weather station... It needs to be wireless and the ablilty to be attached to a MAC and or a PC.. I had a Davis Weather Pro and It is time for an upgrade.

Any suggestions?? I have a budget of about $1000
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1130. WxLogic 22:56 GMT le 17 août 2011    
Quoting stormpetrol:


Pressure are now falling in the path of 93L


93L has actually gained latitude too and with good reason:



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1131. winter123 22:56 GMT le 17 août 2011    
Fernandas circulation is MASSIVE to the north. She seems to be tightening and intensifying, trying to form an eye? 93l looks like a depression!
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1132. PrivateIdaho 22:56 GMT le 17 août 2011    
Still nothing outside the affects of diurnal variation.


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1133. xcool 22:57 GMT le 17 août 2011    
lmaoo
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1134. gugi182 22:57 GMT le 17 août 2011    
My question is will we have a new INVEST by the end of the day?
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1136. tropicfreak 22:57 GMT le 17 août 2011    
Quoting JFV2015:
Wow, this run just made my day, I LOVED IT. mother nature, PRETTY PLEASE, PAN OUT, i BEG OF THOU.


Bye bye JFV. POOF!
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1137. WxLogic 22:59 GMT le 17 août 2011    
Quoting earthlydragonfly:
Evening everyone.... Im in the market for a new weather station... It needs to be wireless and the ablilty to be attached to a MAC and or a PC.. I had a Davis Weather Pro and It is time for an upgrade.

Any suggestions?? I have a budget of about $1000


I personally have the Davis Pro 2 and given your budget I would stay with the Davis line for now, if you budget would have been a bit more now there other more accurate options. That's just my option and pretty sure others will have better ones.
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1138. washingtonian115 22:59 GMT le 17 août 2011    
Quoting OMGITSNOTHAPPENING:
is 93 gonna be a cat 3 or 4?
stop being a damn alarmist.No it's not.
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1139. aislinnpaps 22:59 GMT le 17 août 2011    
Quoting scott39:
My daughter came home from School today and said "Daddy can you help me with homework"? I said "sure sweety what is it"? "I need help with some kind of weather models". "My History teacher is a hurricane NUT like you,and said that she would give some extra credit to whoever got the closest to where landfall would be in the US. NO JOKE!! So what would be the safest bet? FL.? I will be going to meet this History teacher! LOL


LOL! And due tomorrow? Have her print out models and sheer maps, etc., to show how she got to her hit point. And don't forget to include "The Graph"! Showing and explaining it in simple terms will impress her teacher. Let us know how it turns out!
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1141. tropicfreak 22:59 GMT le 17 août 2011    
Quoting Tazmanian:
93L not looking good right now


It's because of DMIN taz, no biggie.
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1142. weatherh98 23:00 GMT le 17 août 2011    
Quoting KEEPEROFTHEGATE:
1110. JFV2015 10:48 PM GMT on August 17, 2011


iwas almost blindedbythat on the computer.... jfv... ivealready said enough
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1143. TropicalAnalystwx13 23:00 GMT le 17 août 2011    
Okay, lets get something straight, since some of you people seem to have some kind of personal grudge on me or something. By no means am I wishing a hurricane on anybody, having been in SEVERAL (Floyd, Isabel, etc). And by no means am I "egging a system" on. I do not wish for anybody to have to go through the wind machines that they call hurricanes.

Some of you can stand up for me - You know I don't wish a hurricane on anybody, right?
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1144. weatherh98 23:00 GMT le 17 août 2011    
Quoting TropicalAnalystwx13:
I see a smiley face.





haha itsmy face
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1146. weathermanwannabe 23:00 GMT le 17 août 2011    
As we know, the models are going to flip back and forth but I think that the NHC 3 day track (based upon models as well with some human element variations) is the best we can do at the moment and what I follow at the end of the day. I was actually a bit surprised to see at the April Hurricane Conference in Atlanta that one of the areas of possible development at NHC is a good 7 Day track forecast.............I don't see how it is possible (an accurate one) and the 5 day is already tough to nail down. I am sure that it has something to do with the greater resolutions and additional data input they are looking at but just too many "Mother Nature" variables to consider outside of 3 days; 5 days might be a "heads up" at best.
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1149. KEEPEROFTHEGATE (Mod) 23:01 GMT le 17 août 2011    
Quoting JFV2015:


Keeper, if this run pans out, I will drop dead, my friend.
is that what is foretold what you really want
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1150. weatherh98 23:01 GMT le 17 août 2011    
Quoting JFV2015:
Wow, this run just made my day, I LOVED IT. mother nature, PRETTY PLEASE, PAN OUT, i BEG OF THOU.


death wishing youre horrible
Member Since: 17 juin 2011 Posts: 11 Comments: 6031

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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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