Alert archive / Connecticut / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 100, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Aug 5, 2009, 3:59 PM EDT for Greater Bridgeport Planning Region, Naugatuck Valley Planning Region, Connecticut. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 5, 2009, 3:59 PM EDT (19:59 UTC)
- Expired
- Aug 5, 2009, 4:28 PM EDT
- In force
- 29 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
Counties Greater Bridgeport Planning Region, CT, Naugatuck Valley Planning Region, CT
The radar
The Brookhaven radar (KOKX), 63 km from the middle of the area, began a volume at 20:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.0 hours before the alert went out and 63 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1399 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New York, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 5, 2:35 PM EDT, 1 hour 24 minutes earlier.
Area forecast discussion, Aug 5, 2:35 PM EDT, 1 hour 24 minutes before
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</html>Hazardous weather outlook, Aug 5, 4:46 AM EDT, 11 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE NEW YORK NY 446 AM EDT WED AUG 5 2009 CTZ005>012-NJZ002>006-011-NYZ067>074-078-079-061000- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-NORTHERN MIDDLESEX- NORTHERN NEW LONDON-SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN- SOUTHERN MIDDLESEX-SOUTHERN NEW LONDON-WESTERN PASSAIC-BERGEN- EASTERN PASSAIC-ESSEX-HUDSON-UNION-ORANGE-PUTNAM-ROCKLAND- NORTHERN WESTCHESTER-SOUTHERN WESTCHESTER-NEW YORK (MANHATTAN)-BRONX- RICHMOND (STATEN ISLAND)-NORTHWESTERN SUFFOLK-NORTHEASTERN SUFFOLK- 446 AM EDT WED AUG 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT...NORTHEAST NEW JERSEY AND SOUTHEAST NEW YORK. .DAY ONE...TODAY AND TONIGHT. THUNDERSTORM DEVELOPMENT IS EXPECTED THIS AFTERNOON AND EVENING. SOME STORMS WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH DAMAGING WINDS THE MAIN THREAT. IN ADDITION TO THE SEVERE POTENTIAL...A HUMID AIRMASS WILL ALLOW FOR LOCALLY HEAVY RAIN. AREAS OF URBAN AND SMALL STREAM FLOODING CAN BE EXPECTED IN THE HEAVIEST ACTIVITY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE POTENTIAL EXISTS FOR APPARENT TEMPERATURES TO REACH INTO THE UPPER 90S TO NEAR 100 DEGREES ON MONDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. && THIS HAZARDOUS WEATHER OUTLOOK PROVIDES A SUMMARY OF POTENTIAL WIDESPREAD HAZARDOUS WEATHER EVENTS THAT MAY REACH NWS WARNING CRITERIA. MOST LONG FUSED NWS WATCHES...WARNINGS AND ADVISORIES IN EFFECT ARE HIGHLIGHTED. PLEASE REFER TO THE LATEST NWS FORECASTS FOR WEATHER NOT MEETING NWS WARNING CRITERIA. NYZ075>077-080-081-061000- KINGS (BROOKLYN)-QUEENS-NASSAU-SOUTHWESTERN SUFFOLK- SOUTHEASTERN SUFFOLK- 446 AM EDT WED AUG 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NEW YORK. .DAY ONE...TODAY AND TONIGHT. THERE IS A MODERATE RISK FOR RIP CURRENTS ALONG OCEAN BEACHES. THUNDERSTORM DEVELOPMENT IS EXPECTED THIS AFTERNOON AND EVENING. SOME STORMS WILL HAVE THE POTENTIAL TO BECOME SEVERE...WITH DAMAGING WINDS THE MAIN THREAT. IN ADDITION TO THE SEVERE POTENTIAL...A HUMID AIRMASS WILL ALLOW FOR LOCALLY HEAVY RAIN. AREAS OF URBAN AND SMALL STREAM FLOODING CAN BE EXPECTED IN THE HEAVIEST ACTIVITY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE POTENTIAL EXISTS FOR APPARENT TEMPERATURES TO REACH INTO THE UPPER 90S TO NEAR 100 DEGREES ON MONDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. && THIS HAZARDOUS WEATHER OUTLOOK PROVIDES A SUMMARY OF POTENTIAL WIDESPREAD HAZARDOUS WEATHER EVENTS THAT MAY REACH NWS WARNING CRITERIA. MOST LONG FUSED NWS WATCHES...WARNINGS AND ADVISORIES IN EFFECT ARE HIGHLIGHTED. PLEASE REFER TO THE LATEST NWS FORECASTS FOR WEATHER NOT MEETING NWS WARNING CRITERIA. ANZ330-335-338-340-345-350-353-355-061000- LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY- LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY- NEW YORK HARBOR-PECONIC AND GARDINERS BAYS- SOUTH SHORE BAYS FROM JONES INLET THROUGH SHINNECOCK BAY- MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM- FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM- SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM- 446 AM EDT WED AUG 5 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT. STRONG THUNDERSTORMS CAPABLE OF PRODUCING WIND GUSTS IN EXCESS OF 35 KNOTS ARE POSSIBLE THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME THAT WOULD MEET NATIONAL WEATHER SERVICE WARNING CRITERIA. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. && THIS HAZARDOUS WEATHER OUTLOOK PROVIDES A SUMMARY OF POTENTIAL WIDESPREAD HAZARDOUS WEATHER EVENTS THAT MAY REACH NWS WARNING CRITERIA. MOST LONG FUSED NWS WATCHES...WARNINGS AND ADVISORIES IN EFFECT ARE HIGHLIGHTED. PLEASE REFER TO THE LATEST NWS FORECASTS FOR WEATHER NOT MEETING NWS WARNING CRITERIA. JMC
In the hours before
Special weather statement, Aug 5, 2:56 PM EDT, 1 hour 3 minutes before
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</html>Special weather statement, Aug 5, 3:02 PM EDT, 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 302 PM EDT WED AUG 5 2009 NJZ002-003-NYZ069-070-052000- BERGEN-NORTHERN WESTCHESTER-ROCKLAND-WESTERN PASSAIC- 302 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN BERGEN...PASSAIC... ROCKLAND AND WESTCHESTER COUNTIES... AT 301 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HAVERSTRAW TO 11 MILES WEST OF BEATTYESTOWN...OR ALONG A LINE EXTENDING FROM HAVERSTRAW TO 21 MILES WEST OF SUCCASUNNA-KENVIL...AND MOVING EAST AT 15 MPH. THESE STORMS WILL BE... NEAR HAVERSTRAW BY 320 PM. NEAR SUFFERN BY 325 PM. NEAR NEW CITY BY 330 PM. NEAR MONSEY BY 340 PM. NEAR BLOOMINGDALE BY 345 PM. NEAR MOUNT KISCO BY 355 PM. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. IN ADDITION...VERY HEAVY RAIN...WITH RAINFALL RATES OF UP TO ONE TO ONE AND A HALF INCHES AN HOUR...IS OCCURRING WITH THESE STORMS. THIS COULD CAUSE PONDING OF WATER ON ROADWAYS...AND MINOR FLOODING OF POOR DRAINAGE AREAS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
Special weather statement, Aug 5, 3:34 PM EDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 334 PM EDT WED AUG 5 2009 CTZ009-NJZ003>006-NYZ071>073-052015- BERGEN-BRONX-EASTERN PASSAIC-ESSEX-HUDSON-NEW YORK (MANHATTAN)-SOUTHERN FAIRFIELD-SOUTHERN WESTCHESTER- 334 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT BERGEN...BRONX...ESSEX... HUDSON...NEW YORK (MANHATTAN)...PASSAIC...SOUTHERN FAIRFIELD AND WESTCHESTER COUNTIES... AT 332 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM TAPPAN TO DOVER... AND MOVING EAST AT 25 MPH. PEOPLE IN BERGEN...BRONX...ESSEX...HUDSON...NEW YORK (MANHATTAN)... PASSAIC...SOUTHERN FAIRFIELD AND WESTCHESTER COUNTIES...INCLUDING HAWTHORNE...RIDGEWOOD...WAYNE...NORWOOD...FAIRFIELD...MILLBURN... PARAMUS...ORADELL...PATERSON AND CALDWELL...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. IN ADDITION...VERY HEAVY RAIN...WITH RAINFALL RATES OF UP TO ONE AND A HALF INCHES AN HOUR...IS OCCURRING WITH THESE STORMS. THIS COULD CAUSE PONDING OF WATER ON ROADWAYS... AND MINOR FLOODING OF POOR DRAINAGE AREAS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
Special weather statement, Aug 5, 3:38 PM EDT, 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 338 PM EDT WED AUG 5 2009 CTZ005-006-052030- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN- 338 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT FAIRFIELD AND WESTERN NEW HAVEN COUNTIES... AT 338 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SOUTHBURY TO DANBURY...AND MOVING EAST AT 10 MPH. PEOPLE IN FAIRFIELD AND WESTERN NEW HAVEN COUNTIES...INCLUDING DANBURY...NEWTOWN...BETHEL...NAUGATUCK AND BEACON FALLS...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
Special weather statement, Aug 5, 3:39 PM EDT, 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 339 PM EDT WED AUG 5 2009 CTZ005-006-052030- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN- 339 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORMS WILL IMPACT FAIRFIELD AND WESTERN NEW HAVEN COUNTIES... AT 338 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SOUTHBURY TO DANBURY...AND MOVING EAST AT 10 MPH. PEOPLE IN FAIRFIELD AND WESTERN NEW HAVEN COUNTIES...INCLUDING DANBURY...NEWTOWN...BETHEL...NAUGATUCK AND BEACON FALLS...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
Special weather statement, Aug 5, 3:56 PM EDT, 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW YORK NY 356 PM EDT WED AUG 5 2009 CTZ005-006-009-010-052100- NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN- 356 PM EDT WED AUG 5 2009 ...STRONG THUNDERSTORM WILL IMPACT FAIRFIELD AND NEW HAVEN COUNTIES... AT 355 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR MILFORD...AND MOVING NORTHEAST AT 15 MPH. THIS STORM WILL BE... NEAR SHELTON BY 405 PM. NEAR ORANGE BY 410 PM. NEAR NEW HAVEN BY 430 PM. NEAR HAMDEN BY 445 PM. NEAR NORTH HAVEN BY 455 PM. NEAR WALLINGFORD BY 500 PM. FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. IN ADDITION...VERY HEAVY RAIN...WITH RAINFALL RATES OF UP TO ONE AND A HALF INCHES AN HOUR...IS OCCURRING WITH THIS STORM. THIS COULD CAUSE PONDING OF WATER ON ROADWAYS... AND MINOR FLOODING OF POOR DRAINAGE AREAS. LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER IMMEDIATELY. JM/PFM
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 2:32 PM EDT | Areal Flood Advisory | OKX | Westchester | 58 min |
| Aug 5, 4:07 PM EDT | Special Marine Warning | OKX | 38 min | |
| Aug 5, 4:23 PM EDT | Severe Thunderstorm Warning | OKX | Nassau | 37 min |
| Aug 5, 4:55 PM EDT | Areal Flood Advisory | OKX | Nassau | 50 min |
| Aug 5, 3:33 PM EDT | Areal Flood Advisory | OKX | Greater Bridgeport Planning Region | 57 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 2009Every severe thunderstorm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.