Thanks to Brad Hruza for taking this great lightning shot near Ottawa last night as thunderstorms rolled through the area.
Photo by Brad Hruza
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Recently in TROPICAL STORM Category
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TROPICAL STORM IRENE INTERMEDIATE ADVISORY NUMBER 33A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092011
200 PM EDT SUN AUG 28 2011
...CENTER OF IRENE MOVING OVER SOUTHERN NEW ENGLAND...
SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION
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LOCATION...42.2N 73.2W
ABOUT 15 MI...30 KM S OF PITTSFIELD MASSACHUSETTS
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...NNE OR 20 DEGREES AT 26 MPH...43 KM/H
MINIMUM CENTRAL PRESSURE...970 MB...28.64 INCHES
WATCHES AND WARNINGS
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CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
THE TROPICAL STORM WARNING SOUTH OF CAPE HENLOPEN DELAWARE...AND FOR
CHESAPEAKE BAY...IS DISCONTINUED.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* CAPE HENLOPEN DELAWARE NORTHWARD TO EASTPORT MAINE...
INCLUDING DELAWARE BAY...NEW YORK CITY...LONG ISLAND...LONG ISLAND
SOUND...COASTAL CONNECTICUT AND RHODE ISLAND...BLOCK
ISLAND...MARTHAS VINEYARD AND NANTUCKET
* UNITED STATES/CANADA BORDER NORTHEASTWARD TO FORT LAWRENCE
INCLUDING GRAND MANAN
* SOUTH COAST OF NOVA SCOTIA FROM FORT LAWRENCE TO PORTERS LAKE
INTERESTS ELSEWHERE IN EASTERN CANADA SHOULD MONITOR THE PROGRESS OF
IRENE.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
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AT 200 PM EDT...1800 UTC...THE CENTER OF TROPICAL STORM IRENE WAS
LOCATED NEAR LATITUDE 42.2 NORTH...LONGITUDE 73.2 WEST. IRENE IS
MOVING TOWARD THE NORTH-NORTHEAST NEAR 26 MPH...43 KM/H...AND THIS
MOTION WITH A LITTLE FASTER FORWARD SPEED IS EXPECTED OVER THE NEXT
DAY OR SO. ON THE FORECAST TRACK...THE CENTER OF IRENE WILL MOVE
OVER NORTHERN NEW ENGLAND LATER THIS AFTERNOON AND OVER EASTERN
CANADA TONIGHT.
MAXIMUM SUSTAINED WINDS ARE NEAR 60 MPH...95 KM/H...WITH HIGHER
GUSTS...MAINLY OVER WATER WELL EAST OF THE CENTER. IRENE IS
FORECAST TO WEAKEN AND BECOME A POST-TROPICAL CYCLONE BY TONIGHT.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 320 MILES...520 KM
MAINLY TO THE EAST OF THE CENTER.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 970 MB...28.64 INCHES.
HAZARDS AFFECTING LAND
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STORM SURGE...AN EXTREMELY DANGEROUS STORM SURGE WILL RAISE WATER
LEVELS BY AS MUCH AS 4 TO 8 FEET ABOVE GROUND LEVEL FROM WESTERN
PORTIONS OF LONG ISLAND ISLAND SOUND EASTWARD ALONG THE SOUTHERN
COASTS OF CONNECTICUT...RHODE ISLAND...AND MASSACHUSETTS. THE
HIGHEST SURGES WILL OCCUR NEAR THE UPPER PARTS OF BAYS AND INLETS.
NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE...
DESTRUCTIVE...AND LIFE-THREATENING WAVES. HIGHER THAN NORMAL
ASTRONOMICAL TIDES ARE OCCURRING THIS WEEKEND. COASTAL AND RIVER
FLOODING WILL BE HIGHEST IN AREAS WHERE THE PEAK SURGE OCCURS
AROUND THE TIME OF HIGH TIDE. STORM TIDE AND SURGE VALUES ARE VERY
LOCATION-SPECIFIC...AND USERS ARE URGED TO CONSULT PRODUCTS ISSUED
BY THEIR LOCAL NATIONAL WEATHER SERVICE OFFICES.
RAINFALL...IRENE IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 4 TO 6 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 8 INCHES...
FROM THE NORTHERN PORTION OF NEW YORK STATE NORTHEASTWARD THROUGH
THE WESTERN PORTION OF NEW ENGLAND. THESE RAINS...COMBINED WITH
HEAVY RAINS OVER THE PAST FEW WEEKS...COULD CAUSE WIDESPREAD
FLOODING AND LIFE-THREATENING FLASH FLOODS.
WIND...TROPICAL STORM FORCE WINDS WILL SPREAD NORTHWARD INTO
PORTIONS OF NEW BRUNSWICK AND NOVA SCOTIA LATER TODAY.
SIGNIFICANTLY HIGHER WIND SPEEDS ARE LIKELY OVER AREAS OF ELEVATED
TERRAIN IN NORTHERN NEW ENGLAND AND EASTERN CANADA.
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Flood-producing heavy rains and strong damaging winds were reported from Delaware and Maryland north to Connecticut and Massachusetts Sunday morning. The tide level at The Battery in Manhattan hit its sixth-highest level ever - reaching 9.5 feet MLLW -Mean lower low water (MLLW is the average of the lowest tide recorded each day). A level of 11.2 feet was recorded in the hurricane of September 1821 and 10.9 feet with hurricane Donna in 1960.
At 11AM EDT the center of Tropical Storm Irene was about 40 mi north-northeast of New York City, moving north-northeast at 26 mph. Rainfall totals of 4 to 12 inches were expected along the storm path with major river flooding, urban and poor drainage flooding. Following are some rainfall and wind reports received earlier this morning:
Location Rainfall (inches)/Wind (mph)
Philadelphia, PA 6.93
Annapolis, MD 5.40
Wilmington, DE 6.93
Dover, DE 7.68
Atlantic City, NJ 5.74
Newark, NJ 7.89 53 mph
Baltimore-Washington APT 4.68
Doylestown, PA 6.22
Burlington, CT 7.45
Milford, MA 4.71
La Gaurdia, NYC 67 mph
East Moriches, NY 71 mph
Bridgeport, CT 63 mph
New Haven, CT 58 mph
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The Atlantic hurricane season has sprung to life in the past few days.
One major hurricane, a tropical storm and another system that appears likely to become a named system, are all lined up in the Atlantic.
Hurricane Earl may have weakened to a Category 3 storm but it is still strong and could graze the Outer Banks of North Carolina as early as late Thursday.
Right on its heels is tropical storm Fiona. Fiona will probably steer a course a bit further east and out to sea.
One fly in the ointment, and there are many when it comes to forecasting tropical cyclones, is something called the "Fujiwhara Effect". When two tropical systems are close enough to each other, they can sometimes spin or orbit around a common center. The larger storm dominates at the expense of the smaller storm one -- so Earl could end up taking some strength from Fiona.
Get the full story: Tim's Weather World: The Fujiwhara fudge factor.
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By Paul Dailey
With sustained 40 mph winds, Danielle became the fourth Tropical Storm of the Atlantic season Sunday afternoon. Located approximently 700 miles west of the southernmost Cape Verde Islands, The National Hurricane Center projected Danielle to intensify, possibly reaching hurricane strength (74+ mph) by mid-week as it tracks northwest
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