July 2012: hottest month in U.S. history

By: Dr. Jeff Masters , 7:16 PM GMT on August 10, 2012

During the 1930s, a series of epic heat waves gripped the U.S., drying up the soil in an unprecedented drought that brought about the great Dust Bowl. The most intense heat hit during July 1936, which set a record for hottest month in U.S. history that stood for 76 years. That iconic record has now fallen, bested by 0.2°F during July 2012, which is now the hottest month in U.S. history, said NOAA's National Climatic Data Center (NCDC) this week. So far in 2012, we've had the warmest March on record, 3rd warmest April, 2nd warmest May, and warmest July. These remarkably warm months have helped push temperatures in the contiguous U.S. to the warmest on record for the year-to-date period of January - July, and for the 12-month period August 2011 - July 2012. Twenty-four states were record warm for that 12-month period, and an additional twenty states were top-ten warm. The past fourteen months have featured America's 2nd warmest summer (in 2011), 4th warmest winter, and warmest spring. The summer of 2012 is on pace to be a top-five warmest summer on record, and could beat the summer of 1936 as the warmest summer in U.S. history.


Figure 1. When the temperature peaked at an all-time high of 108° in Minneapolis, Minnesota on July 14, 1936, the want-ad staff at the 'St. Paul Daily News' was provided with 400 pounds of ice and two electric fans to cool the air in the press room. Photo from the Minnesota Historical Society.


Figure 2. Year-to-date temperature, by month, for 2012 (red), compared to the other 117 years on record for the contiguous U.S., with the five ultimately warmest years (orange) and five ultimately coolest years (blue) noted. The 2012 data are still preliminary. The year-to-date period of January - July was the warmest on record by a huge margin--1.0°F. Image credit: NOAA/NCDC.


Figure 3. For the fourth consecutive month, a new U.S. record for hottest 12-month period was set in July 2012. Five of the top-ten warmest 12-month periods in the contiguous U.S. since 1895 have occurred since April 2011. Image credit: NOAA/NCDC.

Most extreme January - July period on record
NOAA's U.S. Climate Extremes Index (CEI), which tracks the percentage area of the contiguous U.S. experiencing top-10% and bottom-10% extremes in temperature, precipitation, and drought, was 46% during the year-to-date January - July period. This is the highest value since CEI record-keeping began in 1910, and more than twice the average value. Remarkably, 83% of the contiguous U.S. had maximum temperatures that were in the warmest 10% historically during the first seven months of 2012, and 74% of the U.S. of the U.S. had warm minimum temperatures in the top 10%. The percentage area of the U.S. experiencing top-10% drought conditions was 20%, which was the 16th greatest since 1910. Extremes in 1-day heavy precipitation events were the 24th greatest in the 103-year record.


Figure 4. NOAA's U.S. Climate Extremes Index (CEI) for January - July shows that 2012 has had the most extreme first seven months of the year on record, with 46% of the contiguous U.S. experiencing top-10% extreme weather.

Little change to the U.S. drought during the past week
The great U.S. drought of 2012 remained about the same size and intensity over the past week, said NOAA in their weekly U.S. Drought Monitor report issued Thursday, August 9. The area of the contiguous U.S. covered by drought dropped slightly, from 63% to 62%, and the area covered by severe or greater drought stayed constant at 46%. The area of the country in the worst drought categories (extreme to exceptional drought) doubled from 10 percent last month to 22 percent this month. The extreme dryness and excessive heat devastated crops and livestock from the Great Plains to Midwest. During July, the area of the U.S. covered by moderate or greater drought was 57%, ranking as the 5th largest drought in U.S. history:

1) Jul 1934, 80%
2) Dec 1939, 60%
3) Jul 1954, 60%
4) Dec 1956, 58%
5) Jul 2012, 57%



Video 1. This is Not Cool: Peter Sinclair's July 2012 video from the Yale Forum on Climate Change and the Media couples historical footage with contemporary clips and news segments. In one of the latter, for instance, NBC anchor Brian Williams opens the network’s flagship news program with the words: “It’s now official. We are living in one of the worst droughts of the past 100 years.” NASA scientist James Hansen is featured testifying about risks of “extreme droughts” in the nation’s breadbasket, and I'm featured in a few clips talking about the drought of 2012.

I'll have a new post by noon Saturday.

Wunderground's weather historian Christopher C. Burt has a post looking back at the great Heat Wave of July 1936.

Jeff Masters


The views of the author are his/her own and do not necessarily represent the position of The Weather Company or its parent, IBM.

Reader Comments

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1495. msphar
Pottery - GoodLuck with the recovery. I'm standing watch at the other end of the chain. Hoping for peace and quiet.
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1494. LargoFl
...................are they Very sure..that blob below Cuba is NOT going to develop? it has been there for over a week now and sure doesnt look like its weakening any, and its sending lots of rain northward towards florida and the east coast huh
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Pottery,
Horrible! My thoughts and prayers to everyone affected.
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1492. ryang
Anyone else from Barbados on here right now?
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1491. pottery
Quoting LargoFl:
..wow, would NOT want to live there

LOL, but we don't get Hurricanes like you do......
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1490. LargoFl
Quoting Msdrown:
5 inches of rain in 1hr, Gulf Coast, Ms/LA border this morning. More coming and training down the coast to AL/FL.
yes it seems like its been raining up there for a month or more,going to be there all day i guess once again, some flash flood warnings around new orleans again
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1489. LargoFl
Quoting pottery:

This shows the fast run-off. Last year, Maraval
Took friends wall, gate, 3' of water at 20 mph through the house.


..wow, would NOT want to live there
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1488. Msdrown
5 inches of rain in 1hr, Gulf Coast, Ms/LA border this morning. More coming and training down the coast to AL/FL.
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two Iranian earthquakes, 6.2 and 6.3!
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Grothar, I had a ex-Grandpa who came to S. Fl when he was 14 to work on the Everglades hotel will it was being built, just in time for the 26 cane.
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1485. LargoFl
Quoting Msdrown:


Good morning Largo, It sure seems like this one is going to get squireling.
........good morning, yes it seems that way
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Quoting VR46L:


Good Morning Wash , Not so sure on 93l ever developing,





But have to admit there are 2 nice, but small waves getting ready soon to come on to the Atlantic .But the first one will have a major battle with SAL if its to make it ...JMO
Once it reaches warmer waters we should start to see convection increase and development from there hence why the NHC has not counted this entity out yet.
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1483. pottery

This shows the fast run-off. Last year, Maraval
Took friends wall, gate, 3' of water at 20 mph through the house.


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1482. Msdrown
Quoting LargoFl:
.......................even IF that 20% blob near africa builds up..its not going anywhere


Good morning Largo, It sure seems like this one is going to get squireling.
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1481. LargoFl
................................guess the atlantic is fizzling out, now we need to be very watchful for home grown storms
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1480. hydrus
Quoting VR46L:


Good Morning Wash , Not so sure on 93l ever developing,





But have to admit there are 2 nice, but small waves getting soon to come on to the Atlantic .But the first one will have a major battle with SAL if its to make it ...JMO
The African dust should decrease as August goes by, and the waves will help moisten and clear the atmosphere. The storms in September should have better conditions than they are now.
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Off to get my coffee
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Pottery I asked yesterday if someone had given out your address to 007. I thought it was to remain a secret.
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Quoting kmanislander:


That pressure would be rounded to 1011 mbs which is high for a TD. Let's see if they find anything lower.
ke sense though 1011mb is not high high I seen TDs with pressure of 1013mb one time there was one that was at one point was at 1014mb but yeah 1011 is stil a little high
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1476. hydrus
There was another monster hurricane that gets little notoriety that formed in 1926 that almost hit Miami. There was not much left after the September storm if it had hit.Hurricane Ten
Category 4 hurricane (SSHS)
Duration October 14 – October 28
Intensity 150 mph (240 km/h) (1-min), 934 mbar (hPa)
WIKI..

On October 14 a tropical storm developed in the southwest Caribbean Sea. It moved northward, becoming a major hurricane on October 20 before crossing Cuba and southeast Florida.

Striking Cuba with winds up to 145 mph (230 km/h),[8] the hurricane caused catastrophic damage and a large loss of life. Several small towns in the storm's path were completely destroyed and damage estimates exceeded $100 million ($1.3 billion 2012 USD)

It then headed northeastward, and strengthened into a Category 4 before hitting Bermuda on October 22. While weather forecasters knew of the storm's approach on Bermuda, it covered the thousand miles from the Bahamas to Bermuda so rapidly it apparently struck with few warning signs aside from heavy swells. On the 21 October, with the eye of the storm still 700 miles from Bermuda, weather forecasts from the US called for it to strike the island on the following morning with gale force. The Arabis class sloop HMS Valerian, based at the HMD Bermuda, was returning from providing hurricane relief in the Bahamas and was overtaken by the storm shortly before she could make harbour. Unable to enter through Bermuda's reefline, she fought the storm for more than five hours before she was sunk with the loss of eighty-five men. The British merchant ship the Eastway was also sunk near Bermuda. Although the Valerian's commanding officer, Commander Usher, reported that there was no sign of a major storm at 08:00, when his ship was in sight of Bermuda, and when the British Army meteorologists at Prospect Camp measured the wind at 28 mph. By 10:00, the winds had reached 95 mph. When the centre of the storm passed over Bermuda at noon, the winds dropped to 8 mph, then increased to 114 mph, whereupon the Army took down its anemometer to protect it. The Royal Naval Dockyard was being hammered severely and never took its anemometer down. It measured 138 mph at 13:00 (about the same time the Valerian went down), before the wind destroyed it.

The storm became extratropical on October 23.
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Winds have switched back to the S and SSE to the SSW of the fix point. Must be a very limited area of W winds. Odd.
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They may have to post the national guard to protect that corn or some watch dogs/ corn dogs.
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1473. ryang
Morning guys...will be watch TD 7 closely today.
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1472. LargoFl
00
WTNT22 KNHC 110833
TCMAT2

TROPICAL DEPRESSION SEVEN FORECAST/ADVISORY NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072012
0900 UTC SAT AUG 11 2012

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* GUADELOUPE AND MARTINIQUE
* DOMINICA
* ST. LUCIA
* BARBADOS
* ST. VINCENT AND THE GRENADINES

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE IN 12 TO 24 HOURS.

TROPICAL DEPRESSION CENTER LOCATED NEAR 14.0N 56.1W AT 11/0900Z
POSITION ACCURATE WITHIN 30 NM

PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT 21 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1009 MB
MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.

REPEAT...CENTER LOCATED NEAR 14.0N 56.1W AT 11/0900Z
AT 11/0600Z CENTER WAS LOCATED NEAR 13.9N 55.1W

FORECAST VALID 11/1800Z 14.2N 59.4W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 40NW.

FORECAST VALID 12/0600Z 14.4N 63.5W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 40NW.

FORECAST VALID 12/1800Z 14.6N 67.6W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 0SE 0SW 40NW.

FORECAST VALID 13/0600Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 14.0N 56.1W

NEXT ADVISORY AT 11/1500Z

$$
FORECASTER BEVEN

Member Since: December 31, 1969 Posts: Comments:
1471. VR46L
Quoting washingtonian115:
Morning...Another Ernesto situation.Looks better than it was as a tropical entity when it's a weak storm/tropical wave?.The hell is up with these storms?.Still waiting for Isaac.It seeems Gordon will come from 93L after all.


Good Morning Wash , Not so sure on 93l ever developing,





But have to admit there are 2 nice, but small waves getting ready soon to come on to the Atlantic .But the first one will have a major battle with SAL if its to make it ...JMO
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1470. pottery
This from last year, but shows the problem....

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Quoting SLU:
174

WHXX01 KWBC 111236

CHGHUR

TROPICAL CYCLONE GUIDANCE MESSAGE

NWS NATIONAL HURRICANE CENTER MIAMI FL

1236 UTC SAT AUG 11 2012



DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.

PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE

AND SUBTROPICAL CYCLONE INFORMATION.



ATLANTIC OBJECTIVE AIDS FOR



TROPICAL CYCLONE SEVEN (AL072012) 20120811 1200 UTC



...00 HRS... ...12 HRS... ...24 HRS. .. ...36 HRS...

120811 1200 120812 0000 120812 1200 120813 0000



LAT LON LAT LON LAT LON LAT LON

BAMS 13.3N 57.9W 14.0N 62.1W 14.6N 66.4W 15.2N 70.8W

BAMD 13.3N 57.9W 14.0N 60.3W 14.8N 62.5W 15.6N 64.6W

BAMM 13.3N 57.9W 13.9N 60.9W 14.5N 63.8W 15.1N 66.5W

LBAR 13.3N 57.9W 13.8N 61.6W 14.4N 65.1W 15.2N 68.5W

SHIP 30KTS 31KTS 33KTS 37KTS

DSHP 30KTS 31KTS 33KTS 37KTS



...48 HRS... ...72 HRS... ...96 HRS. .. ..120 HRS...

120813 1200 120814 1200 120815 1200 120816 1200



LAT LON LAT LON LAT LON LAT LON

BAMS 15.5N 75.4W 15.9N 83.5W 16.5N 90.1W 17.8N 94.9W

BAMD 16.2N 66.6W 17.2N 70.5W 17.8N 74.6W 18.3N 78.9W

BAMM 15.7N 69.4W 16.9N 75.1W 18.0N 80.9W 19.3N 86.6W

LBAR 16.2N 71.7W 18.7N 77.6W 20.9N 81.3W 19.5N 75.0W

SHIP 42KTS 55KTS 68KTS 74KTS

DSHP 42KTS 55KTS 68KTS 74KTS



...INITIAL CONDITIONS...

LATCUR = 13.3N LONCUR = 57.9W DIRCUR = 270DEG SPDCUR = 23KT

LATM12 = 13.7N LONM12 = 53.2W DIRM12 = 269DEG SPDM12 = 23KT

LATM24 = 13.6N LONM24 = 48.6W

WNDCUR = 30KT RMAXWD = 80NM WNDM12 = 30KT

CENPRS = 1008MB OUTPRS = 1012MB OUTRAD = 100NM SDEPTH = M

RD34NE = 0NM RD34SE = 0NM RD34SW = 0NM RD34NW = 0NM



$$

NNNN




hmm they got the HH coordinates

hmm SHIPS still has it geting stronger on the second half of the run
Member Since: December 31, 1969 Posts: Comments:
1468. LargoFl

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
714 AM CDT SAT AUG 11 2012

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
ST. JOHN THE BAPTIST PARISH IN SOUTHEAST LOUISIANA...
THIS INCLUDES THE CITIES OF...RESERVE...LAPLACE...

* UNTIL 915 AM CDT

* AT 709 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
FLASH FLOODING IS POSSIBLE FROM A THUNDERSTORM OVER THE WARNED
AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EDGARD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RADAR ESTIMATES THAT JUST UNDER 2 INCHES OF RAIN HAS ALREADY FALLEN
AND AN ADDITIONAL 2 TO 3 INCHES ARE POSSIBLE IN THE WARNED AREA.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.



LAT...LON 2990 9066 2995 9067 3016 9064 3018 9043
3007 9041 3001 9054 3000 9054 3000 9055
2996 9054 2990 9055



CAB
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1467. LargoFl
.............................GFS at 48 hours, gulf is clear
Member Since: December 31, 1969 Posts: Comments:
Quoting wunderkidcayman:



maybe is better than ernesto in the winds

maybe well if ernesto can enter the caribeean deal with the bad environment and work its way up why can't TD 7 it sure looks better than Ernesto did at this location interms of those W winds
by the way the lowest pressure found in the system from takeoff till now is 1010.9mb


That pressure would be rounded to 1011 mbs which is high for a TD. Let's see if they find anything lower.
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1465. hydrus
Quoting Grothar:
Anybody here remember the Hurricane of 1926 in Miami?
Chris landsea said that The 1926 Miami Hurricane may have been the largest hurricane ever ti strike the U.S.. Man do I wish we had satellites from 1900 on....Good morning ancient one.
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1464. LargoFl
.............................well the Nam has changed its mind, now nothing in the gulf thru tuesday
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Quoting pottery:

The quick run-off is the problem in those valleys.
Overbuilding on the hillsides and too much pavement has exacerbated that.


Flash flooding is always a big problem with mountainous terrain
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Quoting stormpetrol:
Actually finding more true west winds than they did with Ernesto!


Quoting kmanislander:


A whole page of them now but pressure of 1012 mbs. Not a good sign.

maybe is better than ernesto in the winds

maybe well if ernesto can enter the caribeean deal with the bad environment and work its way up why can't TD 7 it sure looks better than Ernesto did at this location interms of those W winds
by the way the lowest pressure found in the system from takeoff till now is 1010.9mb
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1461. pottery
Quoting kmanislander:


That's not good at all. We had close to 2 inches since midnight but it all runs off quickly here except for a few very low lying areas

The quick run-off is the problem in those valleys.
Overbuilding on the hillsides and too much pavement has exacerbated that.
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1460. LargoFl
.............................................its good to see SW florida getting the rains again..they have been really dry down there the last few months
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1459. SLU
174

WHXX01 KWBC 111236

CHGHUR

TROPICAL CYCLONE GUIDANCE MESSAGE

NWS NATIONAL HURRICANE CENTER MIAMI FL

1236 UTC SAT AUG 11 2012



DISCLAIMER...NUMERICAL MODELS ARE SUBJECT TO LARGE ERRORS.

PLEASE REFER TO NHC OFFICIAL FORECASTS FOR TROPICAL CYCLONE

AND SUBTROPICAL CYCLONE INFORMATION.



ATLANTIC OBJECTIVE AIDS FOR



TROPICAL CYCLONE SEVEN (AL072012) 20120811 1200 UTC



...00 HRS... ...12 HRS... ...24 HRS. .. ...36 HRS...

120811 1200 120812 0000 120812 1200 120813 0000



LAT LON LAT LON LAT LON LAT LON

BAMS 13.3N 57.9W 14.0N 62.1W 14.6N 66.4W 15.2N 70.8W

BAMD 13.3N 57.9W 14.0N 60.3W 14.8N 62.5W 15.6N 64.6W

BAMM 13.3N 57.9W 13.9N 60.9W 14.5N 63.8W 15.1N 66.5W

LBAR 13.3N 57.9W 13.8N 61.6W 14.4N 65.1W 15.2N 68.5W

SHIP 30KTS 31KTS 33KTS 37KTS

DSHP 30KTS 31KTS 33KTS 37KTS



...48 HRS... ...72 HRS... ...96 HRS. .. ..120 HRS...

120813 1200 120814 1200 120815 1200 120816 1200



LAT LON LAT LON LAT LON LAT LON

BAMS 15.5N 75.4W 15.9N 83.5W 16.5N 90.1W 17.8N 94.9W

BAMD 16.2N 66.6W 17.2N 70.5W 17.8N 74.6W 18.3N 78.9W

BAMM 15.7N 69.4W 16.9N 75.1W 18.0N 80.9W 19.3N 86.6W

LBAR 16.2N 71.7W 18.7N 77.6W 20.9N 81.3W 19.5N 75.0W

SHIP 42KTS 55KTS 68KTS 74KTS

DSHP 42KTS 55KTS 68KTS 74KTS



...INITIAL CONDITIONS...

LATCUR = 13.3N LONCUR = 57.9W DIRCUR = 270DEG SPDCUR = 23KT

LATM12 = 13.7N LONM12 = 53.2W DIRM12 = 269DEG SPDM12 = 23KT

LATM24 = 13.6N LONM24 = 48.6W

WNDCUR = 30KT RMAXWD = 80NM WNDM12 = 30KT

CENPRS = 1008MB OUTPRS = 1012MB OUTRAD = 100NM SDEPTH = M

RD34NE = 0NM RD34SE = 0NM RD34SW = 0NM RD34NW = 0NM



$$

NNNN


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Band of high shear in front of our depression.
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Quoting pottery:
Good morning.
Trinidad, 11n 61w
Serious flooding in Maraval, Diego Martin, Woodbrook and other areas overnight.
Cars swept away, homes flooded, bridges out.

Looks like about 3" rainfall, but in those areas (the floors of big valleys/catchment areas with steep hillsides) the result of 3" can be disaster.


That's not good at all. We had close to 2 inches since midnight but it all runs off quickly here except for a few very low lying areas
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1456. LargoFl
.......................even IF that 20% blob near africa builds up..its not going anywhere
Member Since: December 31, 1969 Posts: Comments:
Quoting stormpetrol:
Time: 12:21:30Z
Coordinates: 13.1667N 57.8667W
Acft. Static Air Press: 977.0 mb (~ 28.85 inHg)
Acft. Geopotential Hgt: 309 meters (~ 1,014 feet)
Extrap. Sfc. Press: 1012.1 mb (~ 29.89 inHg)
D-value: -
Flt. Lvl. Wind (30s): From 267° at 8 knots (From the W at ~ 9.2 mph)
Air Temp: 23.0°C* (~ 73.4°F*)
Dew Pt: 23.0°C* (~ 73.4°F*)
Peak (10s) Flt. Lvl. Wind: 9 knots (~ 10.3 mph)
SFMR Peak (10s) Sfc. Wind: 5 knots (~ 5.8 mph)
SFMR Rain Rate: 3 mm/hr (~ 0.12 in/hr)
(*) Denotes suspect data

WE still got a TD.

we need to wait for HH to fly E and NE to determine if it is a TS yet

Member Since: December 31, 1969 Posts: Comments:
1454. pottery
Good morning.
Trinidad, 11n 61w
Serious flooding in Maraval, Diego Martin, Woodbrook and other areas overnight.
Cars swept away, homes flooded, bridges out.

Looks like about 3" rainfall, but in those areas (the floors of big valleys/catchment areas with steep hillsides) the result of 3" can be disaster.
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Quoting stormpetrol:
Actually finding more true west winds than they did with Ernesto!


A whole page of them now but pressure of 1012 mbs. Not a good sign.
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1452. LargoFl
Member Since: December 31, 1969 Posts: Comments:
Actually finding more true west winds than they did with Ernesto!
Member Since: December 31, 1969 Posts: Comments:
hmm 13.2N 57.9W further south
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Quoting GeorgiaStormz:
so weak westerly winds....at least thats what im seeing


They would be weak with the system in the shape it's in plus the fast forward speed
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1448. SLU
looks like the recon closed off a low at 13.3n 57.9w ... about 100 miles east of Barbados and much further south than estimated
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so weak westerly winds....at least thats what im seeing
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Looks like there may be a weak center near 13.3 N and 58 W
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Time: 12:21:30Z
Coordinates: 13.1667N 57.8667W
Acft. Static Air Press: 977.0 mb (~ 28.85 inHg)
Acft. Geopotential Hgt: 309 meters (~ 1,014 feet)
Extrap. Sfc. Press: 1012.1 mb (~ 29.89 inHg)
D-value: -
Flt. Lvl. Wind (30s): From 267° at 8 knots (From the W at ~ 9.2 mph)
Air Temp: 23.0°C* (~ 73.4°F*)
Dew Pt: 23.0°C* (~ 73.4°F*)
Peak (10s) Flt. Lvl. Wind: 9 knots (~ 10.3 mph)
SFMR Peak (10s) Sfc. Wind: 5 knots (~ 5.8 mph)
SFMR Rain Rate: 3 mm/hr (~ 0.12 in/hr)
(*) Denotes suspect data

WE still got a TD.
Member Since: December 31, 1969 Posts: Comments:

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Cat 6 lead authors: WU cofounder Dr. Jeff Masters (right), who flew w/NOAA Hurricane Hunters 1986-1990, & WU meteorologist Bob Henson, @bhensonweather