U.S. experiences warmest 12-month period on record
The past twelve months were the warmest twelve months in U.S. history, said NOAA's National Climatic Data Center (NCDC) on Tuesday, in their monthly "State of the Climate" report. Temperatures in the contiguous U.S. during May 2011 - April 2012 broke the previous record for warmest 12-month period, set November 1999 - October 2000, by 0.1°F. The past twelve months have featured America's 2nd warmest summer, 4th warmest winter, and warmest March on record. Twenty-two states were record warm for the 12-month period, and an additional nineteen states were top ten warm. NOAA said that the January - April 2012 period was also the warmest January - April period since record keeping began in 1895. The average temperature of 45.4°F during January - April 2012 was 5.4°F above the 20th century average for the period, and smashed the previous record set in 2006 by an unusually large margin--1.6°F.
Figure 1. The ten warmest 12-month periods in the contiguous U.S. since record keeping began in 1895. Image credit: NOAA/NCDC.
Figure 2. The average temperature of 45.4°F during January - April 2012 was the warmest on record: 5.4°F above the 20th century average for the period, and was 1.6°F above the previous record set in 2006. January - April temperatures have been rising at about 1.9°F per century since 1895. Image credit: NOAA/NCDC.
April 2012: 3rd warmest on record
April 2012 was the third warmest April in the contiguous U.S. since record keeping began in 1895. Ten states had a top-ten warmest April, and no states were cooler than average. But what's really remarkable about April was that eight states--Illinois, Indiana, Kentucky, Michigan, Wisconsin, Ohio, Pennsylvania, and West Virginia--had average April temperatures cooler than their March temperatures, even though their April temperatures were still above the long-term average for the month. These statistics show just how remarkably warm March 2012 was. Most extreme was Illinois, where April 2012 temperatures ranked in the top 20% for warmest Aprils, yet were cooler than March 2012 temperatures.
Figure 3. Temperature rankings for April 2012 in the Contiguous U.S. Ten states had a top-ten warmest April, and no states were cooler than average. Image credit: NOAA/NCDC.
Figure 4. NOAA's U.S. Climate Extremes Index (CEI) for January - April shows that 2012 had the most extreme weather on record.
Most extreme January - April on record
NOAA's U.S. Climate Extremes Index (CEI), an index that tracks the highest 10 percent and lowest 10 percent of extremes in temperature, precipitation, and drought, was 42% during the January-April period, over twice the average value, and the greatest on record. Remarkably, 82% of the contiguous U.S. had maximum temperatures that were in the warmest 10% historically, and 68% had warm minimum temperatures in the top 10%, with records going back to 1910. The previous records were 56% (2000) and 57% (1992) for maximum and minimum temperatures, respectively. The percentage area of the U.S. experiencing top-10% drought conditions during January - April was 19%, which was the 17th greatest since 1910. Extremes in precipitation as computed by the CEI were near average for the January - April period.
Jeff Masters
Reader Comments
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This is probably the wettest May on record in Trinidad,i have recorded over 10 inches of rain in the past 10 days.Just imagine the monthly average is just 4 inches.
Yeah but usually when the GFS shows this in the long range it never happens. Like I said it could just be tropical moisture merging with a trough in the eastern Gulf. Either way though this could end up being a very wet end of May here in FL. Similar to May 2009 if you ask me.
That could be out ignitor.
Good to see you DDR.
Thunder and Heavy stuff here this morning. AGAIN !
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1236 PM CDT THU MAY 10 2012
UPDATE...
MORNING FORECAST UPDATE.
DISCUSSION...
UPPER LOW CONTINUES TO CHURN AWAY IN THE S ROCKIES NEAR EL PASO
THIS MORNING AND GETTING DEEP CONVECTION ALL THROUGH THE NORTHERN
PORTIONS OF THE RIO GRANDE VALLEY INTO W TX. WEAK SFC LOW WAS
LOCATED OVER THE EDWARDS PLATEAU WITH A WARM FRONT STRETCHING FROM
NEAR JUNCTION TO GALVESTON THIS MORNING. WARM FRONT SHOULD SLOWLY
MOVE NORTHWARD THIS AFTERNOON SO INCREASED POPS A TOUCH FOR ISO
ACTIVITY ALONG THE WARM FRONT. THINK INITIAL CONVECTIVE ACTIVITY
WILL APPROACH WESTERN PORTIONS OF SE TX INTO THE BRAZOS VALLEY
LATE THIS AFTERNOON AND EVENING. THE MAIN SHOW LOOKS TO BE ON
TRACK FOR LATE TONIGHT FRI MORNING AS EXPECTING ORGANIZED
CONVECTION TO MOVE INTO THE AREA BY 12Z FRI. FLASH FLOOD THREAT
WILL BE MARGINAL FOR MUCH OF THE AREA BUT STILL CONCERNED FOR
AREAS MAINLY SOUTH OF A BRENHAM...THE WOODLANDS...BEAUMONT LINE.
THINK THIS WILL BE THE AREA FOR HIGHEST QPF ALTHOUGH AREAS NORTH
OF THAT LINE MAY STILL HAVE SIGNIFICANT RAINFALL BUT HAVE NOT HAD
MUCH IN THE WAY OF RECENT RAINFALL. WILL CONTINUE TO EVALUATE 12Z
MODEL GUIDANCE AND LOOK FOR POSSIBILITY OF FLASH FLOOD WATCH
LATER THIS AFTERNOON.
no wrong it is the first time for it to go gulf bound but yes you are right it is not the first time it is to go to S Fl yesterday the run took it over W-central cuba after that making it way to S Fl so
fist time for gulf bound
not first time for S Flbound
I usually do not even give a second thought about politics. It is absolutely absurd that this is even happening. A debate based on beliefs is logical (but also never-ending) because, obviously, not everyone has the same beliefs. However - when discussing climate change - the "team of the right" as you mentioned, shouldn't even exist. They have absolutely no real power. No facts, no truths, nothing. Why are they even there? Money? So they have false power. I'm now venturing into something that is impossible to comprehend. To me, it's inconceivable how money can be allowed to get in the way of climate change when our very survival is on the table. We need to start voting for politicians who will truthfully put the planet's goals ahead of theirs - and even their own countries.
Yeah this would be great for sure!
Hi pottery good to see you as well.Real crazy weather lately,have you ever seen it like this?
Ok I stand corrected.
don;t worry bout it we do that all the time
What's up DDR? Very wet over there in Trinidad.
Archeologists have discovered a room in a Mayan ruin in which scribes used the walls as a blackboard to calculate future astronomical positions of the Sun, Moon, and visible planets against the starscape.
Unfortunately those calculations include positions up to 6000years into the future, totally kiboshing all plans to hold an End of Days later this year.
You're now included in Severe Thunderstorm Watch
Not a debris ball. There was some lower-level rotation with the storm, but the apparent debris ball is another storm merging into it. You can see it develop just to the SE of the "hook", and grow/stream into the larger storm.
P.S. Am I too new to say DOOM? If so I'm sorry.
Hi to both fellow Caribbean friends. It has been a wet Eastern Caribbean in general during the past week an a half to two weeks Puerto Rico has been thru rainy episodes with flooding events during this period. Here is information from Guadeloupe.
Link
Well of course.....the sun,moon, and planets in space will still be there after 2012
Hey i'm good,extremely wet especially the northern interior,yea we are about 600-800 percent above average,March and April were like June and July,this month you guessed it like August.
Some significant wave heights just below my location
Thanks Tropics
I heard that in one of the islands their major Dam is overflowing,i can't remember which island though.Got to run,peace!
Yeah, I know that JJA is generally the peak of the rainy season in Trinidad, as the ITCZ moves northward...you could have a very long rainy season this year.
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
112 PM CDT THU MAY 10 2012
TXC311-101845-
/O.CON.KCRP.TO.W.0018.000000T0000Z-120510T1845Z/
MCMULLEN-
112 PM CDT THU MAY 10 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR
NORTHEASTERN MCMULLEN COUNTY...
AT 111 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LARGE AND DAMAGING TORNADO JUST EAST OF TILDEN...MOVING
NORTHEAST AT 30 MPH. PLEASE TAKE COVER NOW!
* LOCATIONS IMPACTED INCLUDE...
CROWTHER...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY!
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT THURSDAY EVENING
FOR SOUTH TEXAS.
Eastern Atlantic
M3.7 - 2km W of Timpson, Texas 2012-05-10 15:15:38 UTC
Summary
Location and Magnitude contributed by: USGS National Earthquake Information Center
General
Texas
31.901°N, 94.422°W
Depth: 5.0km
Texas
31.901°N, 94.422°W
Depth: 5.0km
Toggle Map Size
Event Time
2012-05-10 15:15:38 UTC
2012-05-10 10:15:38 UTC-05:00 at epicenter
2012-05-10 10:15:38 UTC-05:00 system time
Nearby Cities
2km (1mi) W from Timpson, Texas
39km (24mi) NNE from Nacogdoches, Texas
45km (27mi) SE from Henderson, Texas
68km (42mi) NNE from Lufkin, Texas
350km (217mi) WNW from Baton Rouge, Louisiana
The National Weather Service says a waterspout hit land on Grand Isle Monday afternoon and damaged a path about a quarter mile long and 400 feet wide Wednesday afternoon.
Once a waterspout hits land, it is deemed a tornado. Two waterspouts were sighted, however, only one crossed onto land. The tornado crossed the island and dissipated into the Gulf of Mexico.
The area hit was around Boudreaux Lane in Grand Isle, where officials said debris was on the roadway and several light poles were knocked down, officials told New Orleans television station WWL-TV.
According to the National Weather Service, shortly before 3 p.m., trained weather spotters reported a tornado on the west side of Grand Isle, moving southeast at 15 mph.
Mayor David Camardelle told WWL-TV power out is for the entire island and there was extensive damage in the area around Raspberry and Boudreaux lanes off of La. Hwy. 1. In all, seven properties were damaged.
Copyright 2012 WAFB. All rights reserved.
I didn't know you were in nursing school. What field?
Strong winds without a doubt, but no rotation at the surface at all.
edit: Well, NWS put a TVS on it, so I guess I'm missing something.
I'm going for my BSN (Bachelor of Science in Nursing), and I'm planning to specialize in ER/Trauma nursing. Nothing quite like changing careers completely at 31. (and working full time in a completely unrelated job from school)
Looks like A low is going to develop but GFS dissipates it later....
What's up Tropics....do you have a link for what's the present situation in Martinique? They seem to be getting the bulk of the rain at the moment
Here you go:
Martinique's radar
Link
Good afternoon Nigel. I dont have a link from Martinique. Some dry air has arrived in PR and that is why so far,no flood advisories have been issued this afternoon.
If this area of heavy rain south of San Antonio area makes it to Houston and then the second round comes through tomorrow, I don't think the NWS will have a choice but to issue a Flood Watch this afternoon.
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