Alert archive / Connecticut / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 54, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Jul 9, 1997, 4:28 PM EDT for Greater Bridgeport Planning Region, Connecticut; Putnam County, New York. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 9, 1997, 4:28 PM EDT (20:28 UTC)
- Expired
- Jul 9, 1997, 5:30 PM EDT
- In force
- 62 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Greater Bridgeport Planning Region, CT, Putnam County, NY
The radar
The Brookhaven radar (KOKX), 74 km from the middle of the area, began a volume at 20:29 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 9, 4:45 PM EDT | Thunderstorm Wind 50 | Lake Carmel, NY |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 9, 1:15 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.5 hours before the alert went out and 74 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
- 64 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 1127 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNYC 092030 RRA SVRNYC CTC001-NYC079-092130- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW YORK NY 428 PM EDT WED JUL 9 1997 THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT FOR THE PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST CONNECTICUT ...NORTHERN FAIRFIELD COUNTY AND THE ADJACENT COASTAL WATERS IN SOUTHEAST NEW YORK ...EASTERN PUTNAM COUNTY AT 430 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS MOVING THROUGH CENTRAL PUTNAM COUNTY. THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE. THESE STORMS WILL MOVE THROUGH PATTERSON IN PUTNAM COUNTY AND NEAR SHERMAN IN NORTHERN FAIRFIELD COUNTY IN CONNECTICUT. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 58 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. HAYES
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.
In the hours before
Special weather statement, Jul 9, 10:50 AM EDT, 5 hours 38 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK 1050 AM EDT WED JUL 9 1997 AN APPROACHING COLD FRONT WILL CLASH WITH THE WARM...HUMID AND UNSTABLE AIRMASS OVER THE REGION TRIGGERING SHOWERS AND THUNDERSTORMS. SOME OF THE THUNDERSTORMS MAY BECOME SEVERE PRODUCING DAMAGING WINDS...HAIL AND HEAVY DOWNPOURS. THE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP MID TO LATE AFTERNOON ACROSS INLAND AREAS AND THEN PROGRESS SOUTHEAST ACROSS THE REST OF THE TRI-STATE AREA THROUGH THIS EVENING. THE NATIONAL WEATHER SERVICE IS MONITORING THIS SITUATION CLOSELY AND WILL ISSUE ANY WATCHES AND WARNINGS AS NECESSARY. PLEASE KEEP ABREAST OF THE LATEST FORECASTS BY LISTENING TO NOAA WEATHER RADIO OR COMMERCIAL RADIO OR TELEVISION. THE FRONT WILL MOVE VERY SLOWLY SOUTHEAST TONIGHT...SO SHOWERS AND THUNDERSTORMS WILL STILL BE OCCURRING UNTIL THE PREDAWN HOURS. HOWEVER...MOST OF THE SEVERE THREAT SHOULD DIMINISH BY MIDNIGHT. AFTER A LEFTOVER SHOWER OR SPRINKLE THURSDAY MORNING...SUNSHINE IS EXPECTED TO RETURN BY AFTERNOON AS HIGH PRESSURE BUILDS IN. FAIR AND WARM WEATHER IS THEN EXPECTED TO CLOSE OUT THE WORK-WEEK. AMBERGER
Special weather statement, Jul 9, 10:51 AM EDT, 5 hours 37 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK 1050 AM EDT WED JUL 9 1997 AN APPROACHING COLD FRONT WILL CLASH WITH THE WARM...HUMID AND UNSTABLE AIRMASS OVER THE REGION TRIGGERING SHOWERS AND THUNDERSTORMS. SOME OF THE THUNDERSTORMS MAY BECOME SEVERE PRODUCING DAMAGING WINDS...HAIL AND HEAVY DOWNPOURS. THE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP MID TO LATE AFTERNOON ACROSS INLAND AREAS AND THEN PROGRESS SOUTHEAST ACROSS THE REST OF THE TRI-STATE AREA THROUGH THIS EVENING. THE NATIONAL WEATHER SERVICE IS MONITORING THIS SITUATION CLOSELY AND WILL ISSUE ANY WATCHES AND WARNINGS AS NECESSARY. PLEASE KEEP ABREAST OF THE LATEST FORECASTS BY LISTENING TO NOAA WEATHER RADIO OR COMMERCIAL RADIO OR TELEVISION. THE FRONT WILL MOVE VERY SLOWLY SOUTHEAST TONIGHT...SO SHOWERS AND THUNDERSTORMS WILL STILL BE OCCURRING UNTIL THE PREDAWN HOURS. HOWEVER...MOST OF THE SEVERE THREAT SHOULD DIMINISH BY MIDNIGHT. AFTER A LEFTOVER SHOWER OR SPRINKLE THURSDAY MORNING...SUNSHINE IS EXPECTED TO RETURN BY AFTERNOON AS HIGH PRESSURE BUILDS IN. FAIR AND WARM WEAT4HER IS THEN EXPECTED TO CLOSE OUT THE WORK-WEEK. AMBERGER
Special weather statement, Jul 9, 1:20 PM EDT, 3 hours 8 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK 120 PM EDT WED JUL 9 1997 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM... AN APPROACHING COLD FRONT WILL CLASH WITH THE WARM...HUMID AND UNSTABLE AIRMASS OVER THE REGION TRIGGERING SHOWERS AND THUNDERSTORMS THIS AFTERNOON THROUGH EARLY TONIGHT. SOME OF THE THUNDERSTORMS MAY BE SEVERE PRODUCING DAMAGING WINDS...LARGE HAIL AND HEAVY DOWNPOURS. KEEP AN EYE TO THE SKY. WARNINGS AND STATEMENTS WILL BE ISSUED AS NECESSARY. THE FRONT WILL MOVE VERY SLOWLY SOUTHEAST TONIGHT...SO SHOWERS AND THUNDERSTORMS WILL STILL BE OCCURRING UNTIL THE PREDAWN HOURS. HOWEVER...MOST OF THE SEVERE THREAT SHOULD DIMINISH EARLY TONIGHT. AFTER A LEFTOVER SHOWER OR SPRINKLE THURSDAY MORNING...SUNSHINE IS EXPECTED TO RETURN BY AFTERNOON AS HIGH PRESSURE BUILDS IN. FAIR AND WARM WEATHER IS THEN EXPECTED TO CLOSE OUT THE WORK-WEEK. AMBERGER
Special weather statement, Jul 9, 1:22 PM EDT, 3 hours 6 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK 120 PM EDT WED JUL 9 1997 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM... AN APPROACHING COLD FRONT WILL CLASH WITH THE WARM...HUMID AND UNSTABLE AIRMASS OVER THE REGION TRIGGERING SHOWERS AND THUNDERSTORMS THIS AFTERNOON THROUGH EARLY TONIGHT. SOME OF THE THUNDERSTORMS MAY BE SEVERE PRODUCING DAMAGING WINDS...LARGE HAIL AND HEAVY DOWNPOURS. KEEP AN EYE TO THE SKY. WARNINGS AND STATEMENTS WILL BE ISSUED AS NECESSARY. THE FRONT WILL MOVE VERY SLOWLY SOUTHEAST TONIGHT...SO SHOWERS AND THUNDERSTORMS WILL STILL BE OCCURRING UNTIL THE PREDAWN HOURS. HOWEVER...MOST OF THE SEVERE THREAT SHOULD DIMINISH EARLY TONIGHT. AFTER A LEFTOVER SHOWER OR SPRINKLE THURSDAY MORNING...SUNSHINE IS EXPECTED TO RETURN BY AFTERNOON AS HIGH PRESSURE BUILDS IN. FAIR AND WARM WEATHER IS THEN EXPECTED TO CLOSE OUT THE WORK-WEEK. AMBERGER
Special weather statement, Jul 9, 3:00 PM EDT, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK 300 PM EDT WED JUL 9 1997 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM... A STRONG COLD FRONT WILL MOVE ACROSS THE TRI-STATE AREA THIS EVENING AND TONIGHT...TRIGGERING SHOWERS AND THUNDERSTORMS. SOME OF THE THUNDERSTORMS MAY BE SEVERE PRODUCING DAMAGING WINDS...LARGE HAIL AND HEAVY DOWNPOURS. HEAVY DOWNPOURS MAY CAUSING FLOODING OF ROADWAYS...ESPECIALLY IN POOR DRAINAGE AND LOW LYING AREAS. KEEP AN EYE TO THE SKY. WARNINGS AND STATEMENTS WILL BE ISSUED AS NECESSARY. THE SHOWERS AND THUNDERSTORMS WILL TAPERING OFF TO SCATTERED SHOWERS AS THE FRONT PASSES. WINDS WILL SHIFT TO THE NORTHWEST AND USHERING DRIER AIR INTO THE REGION. HIGH PRESSURE WILL BUILD INTO THE REGION DURING THE DAY THURSDAY...RESULTING IN FAIR AND LESS HUMID DAY. HIGH PRESSURE WILL THEN MAINTAIN CONTROL OF THE AREA INTO THE WEEKEND. SO WE CAN EXPECTED MOSTLY SUNNY DAYS AND MOSTLY CLEAR NIGHTS. AMBERGER
Special weather statement, Jul 9, 3:02 PM EDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK 300 PM EDT WED JUL 9 1997 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM... A STRONG COLD FRONT WILL MOVE ACROSS THE TRI-STATE AREA THIS EVENING AND TONIGHT...TRIGGERING SHOWERS AND THUNDERSTORMS. SOME OF THE THUNDERSTORMS MAY BE SEVERE PRODUCING DAMAGING WINDS...LARGE HAIL AND HEAVY DOWNPOURS. HEAVY DOWNPOURS MAY CAUSING FLOODING OF ROADWAYS...ESPECIALLY IN POOR DRAINAGE AND LOW LYING AREAS. KEEP AN EYE TO THE SKY. WARNINGS AND STATEMENTS WILL BE ISSUED AS NECESSARY. THE SHOWERS AND THUNDERSTORMS WILL TAPERING OFF TO SCATTERED SHOWERS AS THE FRONT PASSES. WINDS WILL SHIFT TO THE NORTHWEST AND USHERING DRIER AIR INTO THE REGION. HIGH PRESSURE WILL BUILD INTO THE REGION DURING THE DAY THURSDAY...RESULTING IN FAIR AND LESS HUMID DAY. HIGH PRESSURE WILL ~THEN MAINTAIN CONTROL OF THE AREA INTO THE WEEKEND. SO WE CAN EXPECTED MOSTLY SUNNY DAYS AND MOSTLY CLEAR NIGHTS. AMBERGER
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 3:30 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 60 min |
| Jul 9, 3:58 PM EDT | Severe Thunderstorm Warning | OKX | Naugatuck Valley Planning Region | 62 min |
| Jul 9, 5:11 PM EDT | Flash Flood Warning | OKX | Naugatuck Valley Planning Region | 64 min |
| Jul 9, 5:11 PM EDT | Severe Thunderstorm Warning | OKX | Naugatuck Valley Planning Region | 64 min |
| Jul 9, 6:03 PM EDT | Flash Flood Warning | OKX | Greater Bridgeport Planning Region | 117 min |
| Jul 9, 6:12 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 63 min |
| Jul 9, 6:14 PM EDT | Severe Thunderstorm Warning | OKX | Naugatuck Valley Planning Region | 61 min |
| Jul 9, 2:15 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 60 min |
| Jul 9, 3:34 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 56 min |
| Jul 9, 4:31 PM EDT | Severe Thunderstorm Warning | OKX | Orange | 59 min |
| Jul 9, 6:05 PM EDT | Flash Flood Warning | OKX | Westchester | 55 min |
| Jul 9, 6:05 PM EDT | Severe Thunderstorm Warning | OKX | Westchester | 55 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 1997Severe Thunderstorm Warnings in New York, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.