Hurricane Barbara Hits Mexico; Severe Weather Outbreak Continues in Midwest

By: Dr. Jeff Masters , 3:29 PM GMT on May 30, 2013

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The Eastern Pacific's Hurricane Barbara is still alive as a tropical depression at the edge of the Atlantic's Gulf of Mexico, and has the potential to gain new life as an Atlantic tropical cyclone later today. Barbara made landfall near 4 pm EDT (1 pm PDT) May 29, 2013, on Mexico's Bay of Tehuantepec coast, as a Category 1 hurricane with 75 mph winds. The storm killed two people, and brought heavy rains of 16.02" (407mm) to Arriaga in the state of Chiapas in an 18-hour period. Barbara remains a serious rainfall threat today. The storm intensified remarkably rapidly, becoming a hurricane just 21 hours after it became a tropical depression. According to NOAA's Historical Hurricane Tracks website, only one other Eastern Pacific hurricane has ever made landfall in May--Category 1 Hurricane Agatha of 1971, which hit Mexico west of Acapulco. Barbara is just the 2nd hurricane ever to make landfall in the Bay of Tehuantepec (the other: Category 1 Hurricane Rick of 1997.) Barbara's formation date of May 28 was the 2nd earliest appearance of the Eastern Pacific's 2nd named storm of the year; the record earliest second storm of the year occurred just last year, on May 21, 2012 (Tropical Storm Bud.) The average date for the formation of the Eastern Pacific's 2nd storm is June 25. Barbara's landfall location was the most easterly on record for an East Pacific hurricane. Records of Eastern Pacific hurricanes go back to 1949, but aren't really reliable until 1966.


Figure 1. MODIS satellite image of Hurricane Barbara taken at 4:30 pm EDT on May 29, 2013. At the time, Barbara was making landfall as a Category 1 hurricane with 75 mph winds. Image credit: NASA.

Barbara survived its overnight crossing of Mexico's Isthmus of Tehuantepec with its circulation intact, but lost nearly all of its heavy thunderstorm activity. This morning, the center of Barbara was located just inland from the southernmost waters of the Gulf of Mexico's Bay of Campeche. Barbara was drifting northwest, towards open water, at 3 mph. With wind shear a moderate 10 - 20 knots over Barbara, the storm has the potential to be classified as an Atlantic tropical depression later today if its center emerges over water. However, latest satellite loops have shown a steady reduction in the storm's heavy thunderstorms this morning, and Barbara may lose its circulation before it has time take advantage of the Gulf of Mexico's warm waters. Since Barbara is a small storm, the moderate wind shear may be too great for it to withstand. None of the reliable computer models predict that Barbara will survive into Friday. If Barbara is able to re-intensify to a tropical storm, it would keep the name Barbara, becoming the first Atlantic storm ever to have an Eastern Pacific name. Formerly, Eastern Pacific storms crossing into the Atlantic would be given a new name, but a recent NHC policy change allows storms to keep their names when they cross from one ocean basin to another. If Barbara were to dissipate before reaching the Gulf, then its remnants regenerate into a tropical storm in the Gulf, it would be named Andrea. If you want to discuss this year's hurricane season via Twitter, AP will be doing a hurricane twitter chat today (Thursday) at 1 p.m. EDT: #APStormChat; the National Hurricane Center is doing a hurricane chat at 2 pm EDT: #HurriChat.

Double ocean tropical cyclones: a rare breed
According to the Hurricane FAQ, since 1923 there have been four East Pacific tropical storms or hurricanes that have maintained their circulations while crossing into the Atlantic Ocean, becoming tropical storms in the Atlantic Ocean:

Northeast Pacific Tropical Storm Alma (May 2008) became a remnant low in the Atlantic, where it merged with another tropical wave which generated Atlantic Tropical Storm Arthur. Arthur hit Belize as a tropical storm, killing nine and doing $78 million in damage.

Northeast Pacific Hurricane Cosme became Atlantic Tropical Storm Allison in June 1989. Allison hit Texas as a tropical storm, and heavy rains from Allison--up to 30" in some regions of Texas and Louisiana--triggered floods that killed eleven people and did $1 billion in damage. (A later incarnation of Tropical Storm Allison in 2001 also hit Texas, and caused such extensive flooding that its name was retired.)

An unnamed Northeast Pacific Tropical Storm (September-October 1949) became Atlantic Hurricane (Storm #10) and hit Freeport, Texas as a Category 4 hurricane, killing two people.

An unnamed Northeast Pacific Tropical Storm (October 1923) became Atlantic Hurricane (Storm #6) and made landfall as a Category 1 hurricane in Louisiana.

There have been eight Atlantic tropical storms or hurricanes that have maintained their circulations while crossing into the East Pacific Ocean, and were then tropical storms in that ocean.


Figure 2. Severe weather outlook for Thursday, May 30, calls for a "Slight Risk" of severe weather over much of the Midwest. You can follow today's severe weather outbreak from our Severe Weather page.

Multi-day severe weather outbreak in the Midwest brings more tornadoes and flooding
It was an active day for tornadoes in the Midwest on Wednesday, with NOAA's Storm Prediction Center (SPC) logging 23 preliminary tornado reports. Twisters touched down in Nebraska, Kansas, Texas, Oklahoma, Iowa, and Wisconsin. The tornadoes missed heavily populated areas, and no injuries and only minor damage was reported. The latest forecast from NOAA's Storm Prediction Center call for a "Moderate Risk" of severe weather today (Thursday) over much of Oklahoma, with the potential for several strong EF-2 and EF-3 tornadoes.


Figure 3. Five-day rainfall forecast for the period ending at 7am EDT Tuesday, June 4, calls for very heavy rains of 3 - 5" over much of Missouri. Image credit: NOAA/HPC.

As discussed by wunderground's weather historian Christopher C. Burt in his latest post, Some Phenomenal Rainfalls the Past Week in the U.S., the country has seen a lot of very heavy rainfall over the past week that has caused serious flooding. Of particular concern is Iowa, where Governor Terry Branstad issued a disaster proclamation on Tuesday for 13 Iowa counties, due to recent storms and flooding.The Iowa State Climatologist, Harry Hillaker, announced on May 29th that this has been the wettest spring (March-May) on record for the state since records began 141 years ago. A state average of 16.4” has been preliminarily reported. The previous wettest spring was 15.5” way back in 1892. He warned that “Iowa is at a tipping point for a major flood event”. Rains of 1 - 2" are expected over Eastern Iowa the remainder of the this week, which will keep most rivers above flood stage. Another round of rains of 1 - 2" are likely on Tuesday and Wednesday of next week, when the next storm system rolls through. That system also has the potential to bring a severe weather outbreak to the Midwest.

Jeff Masters

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BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
229 PM CDT THU MAY 30 2013

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
SOUTHERN OSAGE COUNTY IN NORTHEAST OKLAHOMA...
PAWNEE COUNTY IN NORTHEAST OKLAHOMA...

* UNTIL 300 PM CDT

* AT 224 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 3 MILES EAST OF PAWNEE...MOVING EAST AT 40 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BLACKBURN...CLEVELAND...OSAGE AND HOMINY.
Member Since: February 13, 2012 Posts: 11 Comments: 3885
As I said, I stand corrected, and I never said that an EF5 has to be a wedge shaped mile wider. I know an EF5 can be much narrower, like the one pictured in post #341. Just that I never heard of an EF2 being so wide--live and learn.
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Quoting scottsvb:
I wouldn't look at anything more than 5 days out.. after that it's the farmers alnamac almost


While forecasts for track and intensity are totally unreliable beyond 5 days out, it gives us a general idea where we should be looking down the road. The time period between June 6th - 10th seems our best bet for development, and also signals to us when development might begin to take place, which is 6-7 days from now.
Member Since: July 8, 2005 Posts: 259 Comments: 24580
Just got reports of 4.5" hail in ellis, KS.
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sirens going off in chickasha ok
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BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
226 PM CDT THU MAY 30 2013

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
EASTERN GRANT COUNTY IN SOUTHWEST WISCONSIN...

* UNTIL 315 PM CDT

* AT 223 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR SHERRILL...AND MOVING NORTHEAST AT 40 MPH.

HAZARD...DEVELOPING TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
EXTENSIVE TREE DAMAGE IS LIKELY.

* THIS DANGEROUS STORM WILL BE NEAR...
LANCASTER AROUND 250 PM CDT.
FENNIMORE AROUND 300 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE BURTON...TENNYSON...POTOSI...
HURRICANE...LANCASTER MUNICIPAL AIRPORT...ROCKVILLE...ELLENBORO...
KLONDYKE SECLUDED ACRES...UNION AND STITZER.
Member Since: February 13, 2012 Posts: 11 Comments: 3885
I wouldn't look at anything more than 5 days out.. after that it's the farmers alnamac almost
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Quoting originalLT:
Post, # 322, size and strength DO matter when it comes to tornadoes. When's the last time you heard of an EF2 being a mile wide?

Size is not relative to the strength... I remember an EF5 in Canada a few years ago that was very narrow. and EF2's and EF3's can often be a mile wide.
Member Since: February 13, 2012 Posts: 11 Comments: 3885
Quoting originalLT:
Post, # 322, size and strength DO matter when it comes to tornadoes. When's the last time you heard of an EF2 being a mile wide?


Not quite, size matters not. This was an F-5 tornado, the only one recorded in Canada.


What matters is the damage it produces, that's what determines intensity. If a two mile wedge forms and it doesn't hit anything, it's rated an EF0.
Member Since: July 8, 2005 Posts: 259 Comments: 24580
Live footage of Oklahoma storms...Link
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Quoting bigwes6844:
oh no!!! me and Pat gotta get ready if this continues. is it a TS or hurricane?


A TS at 10 days out on a model. You should always be prepared, but no worries for now. ;-)
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If you are right, I stand corrected!
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Models showing development are still too far out 7-10 days...it could be earlier or never happen.

What we do know is that alot of moisture will continue to feed up from the EPAC and into the southern GOM into next week. Then the question is.. will we have a LLC that forms and develops next week or do we have alot of shear and more of a inverted trough. Models will change back and forth into the weekend. Follow the GFS days 3-5 along with the ECMWF on days 6-7..nothing longer
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Quoting CybrTeddy:
Quite a flip for the ECMWF, but I had a feeling it would eventually show this once it figured out that splitting into four separate lows didn't make sense.


We now have the GFS, CMC, and ECMWF all predicting a tropical cyclone may form next week.
oh no!!! me and Pat gotta get ready if this continues. is it a TS or hurricane?
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Post, # 322, size and strength DO matter when it comes to tornadoes. When's the last time you heard of an EF2 being a mile wide?
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Quoting originalLT:
I haven't heard about that in NY either, and an EF2 would not be a mile wide--that is reserved for an EF4 or 5.
Not good to assume that. Tornado of ANY rating can be mile wide, even an EF2. EF4 or EF5 can be very narrow as well.
Member Since: August 1, 2011 Posts: 28 Comments: 8075
Quoting originalLT:
I haven't heard about that in NY either, and an EF2 would not be a mile wide--that is reserved for an EF4 or 5.

Any tornado can be any size. Yes, larger tornadoes are typically more intense, but there are many, many exceptions.
Member Since: July 6, 2010 Posts: 113 Comments: 32877
Quoting originalLT:
I haven't heard about that in NY either, and an EF2 would not be a mile wide--that is reserved for an EF4 or 5.

Size doesn't matter when it comes to tornadoes.
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Quoting originalLT:
I haven't heard about that in NY either, and an EF2 would not be a mile wide--that is reserved for an EF4 or 5.

And you'd think a tornado in such a populated area would be all over the news.
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Quoting evilpenguinshan:
You sure about that? SPC storm reports show nothing of the sort in New York.


PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
249 PM EDT THU MAY 30 2013

...PUBLIC INFORMATION STATEMENT...

TORNADO TOUCHDOWN IN MONTGOMERY AND SCHENECTADY COUNTIES ON
WEDNESDAY MAY 29 2013.

LOCATION...BEGAN IN FLORIDA IN MONTGOMERY COUNTY NEW YORK TO
ROTTERDAM IN SCHENECTADY COUNTY NEW YORK.

DATE...05/29/2013.

ESTIMATED TIME...645-700 PM.

MAXIMUM EF SCALE RATING...EF-2.

ESTIMATED MAXIMUM WIND SPEED...125 MPH.

ESTIMATED PATH WIDTH...1 MILE WIDE.

PATH LENGTH...17 MILES.

* FATALITIES...NONE.
* INJURIES...1.

* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO
CHANGE PENDING FINAL REVIEW OF THE EVENT AND PUBLICATION IN
NWS STORM DATA.

...SUMMARY...PATH WIDTH WAS CONSISTENT ALONG THE ENTIRE PATH
LENGTH. MAXIMUM DAMAGE INCLUDED ROOFS TORN OFF OF MULTIPLE
STRUCTURES AND HIGH TENSION POWER LINE TOWERS TOPPLED. LARGE
NUMBER OF HARD AND SOFT WOOD TREES WERE EITHER TOPPLED...UPROOTED
AND OR SHEARED. WIDESPREAD POWER OUTAGES OCCURRED AS WELL.

$$
Member Since: July 6, 2010 Posts: 113 Comments: 32877
Quoting evilpenguinshan:
You sure about that? SPC storm reports show nothing of the sort in New York.



Because they don't do surveys for tornadoes. NWS offices does. Headline says EF2 in Albany NWS area, but the link is broken so not sure about the mile wide part.

http://www.weather.gov/aly/
Member Since: August 1, 2011 Posts: 28 Comments: 8075
2:16 p.m. CDT Thursday: A severe storm in Cadda County, Okla., is rotating with a visible wall cloud. The storm will head just south of Moore near Norman, Okla.
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I can see a tornado warning coming to the Chickasha storm soon
Member Since: February 13, 2012 Posts: 11 Comments: 3885
And so it starts this afternoon....Four tornado warnings out there at the moment in the mid-West.
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I haven't heard about that in NY either, and an EF2 would not be a mile wide--that is reserved for an EF4 or 5.( Post# 304)
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Latest Euro run..
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Quoting MississippiWx:
The MDR is trying its best to go below average. That would be the first time I've seen that in a long time.


Things have been really interfered with since April. The MDR plummeted, an PDO took a turn.

Ill have this all in my update. Although Borderline La Niña conditions have developed pretty aggressively in Niño 1+2 and 3. Niño 3.4 and 4 have stay relatively average, but truthfully these regions don't matter on determining an active or inactive season. The one thing known is an active season with an increased threat of landfalling storms.
Member Since: October 3, 2010 Posts: 40 Comments: 4129
Sucker moving farther north into BOC
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BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
216 PM CDT THU MAY 30 2013

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
CENTRAL DUBUQUE COUNTY IN NORTHEAST IOWA...

* UNTIL 245 PM CDT

* AT 213 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR CENTRALIA...AND MOVING NORTHEAST AT 45
MPH.

HAZARD...DEVELOPING TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
EXTENSIVE TREE DAMAGE IS LIKELY.
Member Since: February 13, 2012 Posts: 11 Comments: 3885
You sure about that? SPC storm reports show nothing of the sort in New York.

Quoting TropicalAnalystwx13:
Meanwhile in New York yesterday, a mile wide EF2 that remained that wide for its entire path length of 17 miles.
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Good Grief. Hasn't Oklahoma suffered enough?
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Quoting TropicalAnalystwx13:
How's James gonna just do that to me? Lol.

@CodyFields82 5m
@NOAALive Any thoughts about potential development next week? GFS and 12z ECMWF show a tropical system. #hurrichat

NOAA Live %u200F@NOAALive 2m
.@CodyFields82 Lot's of thoughts, but none to share here. Check the website as we get closer. http://hurricanes.gov
- JF #HurriChat


You probably bug him too much as it is! ;)
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Quoting TropicalAnalystwx13:
How's James gonna just do that to me? Lol.

@CodyFields82 5m
@NOAALive Any thoughts about potential development next week? GFS and 12z ECMWF show a tropical system. #hurrichat

NOAA Live ‏@NOAALive 2m
.@CodyFields82 Lot's of thoughts, but none to share here. Check the website as we get closer. http://hurricanes.gov
- JF #HurriChat


In other words, he's not going to make any sort of forecast because they are about as unsure as this blog.
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BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
213 PM CDT THU MAY 30 2013

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
NORTHWESTERN LINCOLN COUNTY IN CENTRAL OKLAHOMA...
WESTERN PAYNE COUNTY IN CENTRAL OKLAHOMA...
CENTRAL LOGAN COUNTY IN CENTRAL OKLAHOMA...

* UNTIL 300 PM CDT

* AT 209 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR GUTHRIE...AND MOVING EAST AT 30 MPH.

IN ADDITION TO A TORNADO...LARGE DAMAGING HAIL UP TO GOLF BALL SIZE
IS EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
GUTHRIE...PERKINS...LANGSTON...TRYON...COYLE AND MERIDIAN.
Member Since: February 13, 2012 Posts: 11 Comments: 3885
Quoting HurricaneDean07:
Going to post a blog tonight. :) Going to start posting and be more involved on the blog starting soon. Looking to get an internship next summer with NASA, and hopefullyy next step will be with NOAA. My teacher has been helping me out to get a plan to carve my way into a scholarship, hopefully.


I'd hate to be a student, today. A financial nightmare, imo.
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How's James gonna just do that to me? Lol.

@CodyFields82 5m
@NOAALive Any thoughts about potential development next week? GFS and 12z ECMWF show a tropical system. #hurrichat

NOAA Live ‏@NOAALive 2m
.@CodyFields82 Lot's of thoughts, but none to share here. Check the website as we get closer. http://hurricanes.gov
- JF #HurriChat
Member Since: July 6, 2010 Posts: 113 Comments: 32877
HOOK ECHO, LOOK RIGHT ABOVE THE "Q3" STORM LABEL:




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The MDR is trying its best to go below average. That would be the first time I've seen that in a long time.

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SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
206 PM CDT THU MAY 30 2013

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CADDO COUNTY IN SOUTHWEST OKLAHOMA...
CENTRAL GRADY COUNTY IN CENTRAL OKLAHOMA...

* UNTIL 245 PM CDT

* AT 205 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM LOCATED 4 MILES SOUTHWEST OF VERDEN...MOVING
EAST AT 20 MPH.

HAZARDS IN THE WARNING INCLUDE...
LARGE DESTRUCTIVE HAIL UP TO TENNIS BALL SIZE...
DAMAGING WINDS IN EXCESS OF 60 MPH...

* LOCATIONS IMPACTED INCLUDE...
CHICKASHA...ANADARKO...VERDEN...AMBER...POCASSET.. .LAKE CHICKASHA
AND TABLER.
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Twin Lakes/Oklahoma City, OK (KTLX) - Base Reflectivity (0.5)
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Going to post a blog tonight. :) Going to start posting and be more involved on the blog starting soon. Looking to get an internship next summer with NASA, and hopefullyy next step will be with NOAA. My teacher has been helping me out to get a plan to carve my way into a scholarship, hopefully.
Member Since: October 3, 2010 Posts: 40 Comments: 4129
cyclone in the gulf ? could be leftovers from barbara plenty of spin southern boc
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Quoting CybrTeddy:
Quite a flip for the ECMWF, but I had a feeling it would eventually show this once it figured out that splitting into four separate lows didn't make sense.


We now have the GFS, CMC, and ECMWF all predicting a tropical cyclone may form next week.


Wow,the Euro is on board. Things turn very interesting to see the next runs to have consistency.
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Quoting KEEPEROFTHEGATE:
looks like the afternoon pop up show is about to begin


I might actually get something!
Member Since: February 13, 2012 Posts: 11 Comments: 3885
o.o!



... Tornado Warning remains in effect until 230 PM CDT for Pawnee and
central Osage counties...

At 202 PM CDT... a severe thunderstorm capable of producing a tornado
was located near Pawnee... moving east at 25 mph.

Some locations in or near the path of this storm include... Pawnee...
Skedee and Blackburn.

Precautionary/preparedness actions...

If you are near the path of this storm... take cover now! If no
underground shelter is available move to an interior room on the
lowest floor. Mobile homes and vehicles should be abandoned for more
substantial shelter. Avoid windows!


Lat... Lon 3636 9696 3646 9696 3653 9658 3624 9653
3625 9693 3633 9693 3633 9703
time... Mot... loc 1904z 259deg 21kt 3635 9685

Statement as of 2:01 PM CDT on May 30, 2013



The National Weather Service in Little Rock has issued a

* Tornado Warning for...
southwestern Scott County in western Arkansas...
northwestern Polk County in western Arkansas...

* until 230 PM CDT

* at 154 PM CDT... National Weather Service Doppler radar indicated a
severe thunderstorm capable of producing a tornado. This severe
storm was located 5 miles south of Mountain Fork... or 11 miles west
of Mena. Doppler radar showed this severe storm moving northeast at
30 mph.

* Locations in the path of this dangerous storm include...
Queen Wilhelmina State Park... Mountain Fork...
Morgan Springs... Lake Wilhelmina... Lake Hinkle...
Beauchamp... Black Fork Mountain wilderness...
rocky... rich mtn... Eagleton...
Cauthron... Black Fork... Bates...
Cedar mtn... Round Mountain... West Valley...
weehunt mtn... self mtn...

Precautionary/preparedness actions...

Take cover now. Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If in a Mobile home... a vehicle or
outdoors... move to the closest substantial shelter and protect
yourself from flying debris.


Lat... Lon 3464 9446 3477 9447 3478 9446 3496 9437
3496 9433 3479 9404 3450 9443 3453 9447
3464 9447
time... Mot... loc 1902z 219deg 26kt 3461 9439


/62


... A Tornado Warning remains in effect until 215 PM CDT for central
Logan County...

at 155 PM CDT... National Weather Service meteorologists continued to
detect a severe thunderstorm capable of producing a tornado. This
dangerous storm was located near Cedar Valley... moving northeast at
25 to 30 mph.

In addition to a tornado... large damaging hail up to Golf Ball size
is expected with this storm.

Locations impacted include...
Guthrie... Cimarron City... Cedar Valley... Navina and Seward.

Precautionary/preparedness actions...

Take cover now in a storm shelter or an interior room of a sturdy
building. Stay away from doors and windows.

Do not stop under bridges or Highway overpasses. They will not
protect you from a tornado.

Lat... Lon 3603 9735 3599 9736 3599 9734 3579 9723
3578 9724 3577 9762 3588 9767 3605 9736
time... Mot... loc 1855z 245deg 28kt 3585 9758


Austin

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Meanwhile in New York yesterday, a mile wide EF2 that remained that wide for its entire path length of 17 miles.
Member Since: July 6, 2010 Posts: 113 Comments: 32877
Quoting Luisport:
LARGE WALL CLOUD HEADING TOWARDS GUTHRIE..Rotation just past Cedar Valley golf course.


Be safe. Sounds like that is close to you from your description.
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Quite a flip for the ECMWF, but I had a feeling it would eventually show this once it figured out that splitting into four separate lows didn't make sense.


We now have the GFS, CMC, and ECMWF all predicting a tropical cyclone may form next week.
Member Since: July 8, 2005 Posts: 259 Comments: 24580
Pat, I think we can feel safe since this is 10 days out on the Euro. ;-)

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Quoting KEEPEROFTHEGATE:
teleported

The Physics arXiv Blog
May 11, 2012
Chinese Physicists Smash Distance Record For Teleportation

The ability to teleport photons through 100 kilometres of free space opens the way for satellite-based quantum communications, say researchers

Teleportation is the extraordinary ability to transfer objects from one location to another without travelling through the intervening space.

The idea is not that the physical object is teleported but the information that describes it. This can then be applied to a similar object in a new location which effectively takes on the new identity.

And it is by no means science fiction. Physicists have been teleporting photons since 1997 and the technique is now standard in optics laboratories all over the world.

The phenomenon that makes this possible is known as quantum entanglement, the deep and mysterious link that occurs when two quantum objects share the same existence and yet are separated in space.

Teleportation turns out to be extremely useful. Because teleported information does not travel through the intervening space, it cannot be secretly accessed by an eavesdropper.

For that reason, teleportation is the enabling technology behind quantum cryptography, a way of sending information with close-to-perfect secrecy.

Unfortunately, entangled photons are fragile objects. They cannot travel further than a kilometre or so down optical fibres because the photons end up interacting with the glass breaking the entanglement. That severely limits quantum cryptography’s usefulness.

However, physicists have had more success teleporting photons through the atmosphere. In 2010, a Chinese team announced that it had teleported single photons over a distance of 16 kilometres. Handy but not exactly Earth-shattering.

Now the same team says it has smashed this record. Juan Yin at the University of Science and Technology of China in Shanghai, and a bunch of mates say they have teleported entangled photons over a distance of 97 kilometres across a lake in China.

That’s an impressive feat for several reasons. The trick these guys have perfected is to find a way to use a 1.3 Watt laser and some fancy optics to beam the light and receive it.

Inevitably photons get lost and entanglement is destroyed in such a process. Imperfections in the optics and air turbulence account for some of these losses but the biggest problem is beam widening (they did the experiment at an altitude of about 4000 metres). Since the beam spreads out as it travels, many of the photons simply miss the target altogether.

So the most important advance these guys have made is to develop a steering mechanism using a guide laser that keeps the beam precisely on target. As a result, they were able to teleport more than 1100 photons in 4 hours over a distance of 97 kilometres.

That’s interesting because it’s the same channel attenuation that you’d have to cope with when beaming photons to a satellite with, say, 20 centimetre optics orbiting at about 500 kilometres. “The successful quantum teleportation over such channel losses in combination with our high-frequency and high-accuracy [aiming] technique show the feasibility of satellite-based ultra-long-distance quantum teleportation,” say Juan and co.

So these guys clearly have their eye on the possibility of satellite-based quantum cryptography which would provide ultra secure communications around the world. That’s in stark contrast to the few kilometres that are possible with commercial quantum cryptography gear.

Of course, data rates are likely to be slow and the rapidly emerging technology of quantum repeaters will extend the reach of ground-based quantum cryptography so that it could reach around the world, in principle at least.

But a perfect, satellite-based security system might be a useful piece of kit to have on the roof of an embassy or distributed among the armed forces.

Something for western security experts to think about.


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About

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

JeffMasters's Recent Photos

Lake Effort Snow Shower Over Windsor, Ontario
Sunset on Dunham Lake
Pictured Rocks Sunset
Sunset on Lake Huron