Alert archive / New York / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 40, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Jul 3, 1997, 6:38 PM EDT for Putnam County, Westchester County, New York. It was in force for 52 min. 2 reports 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 3, 1997, 6:38 PM EDT (22:38 UTC)
- Expired
- Jul 3, 1997, 7:30 PM EDT
- In force
- 52 min
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Putnam County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 88 km from the middle of the area, began a volume at 22:40 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 3, 6:40 PM EDT | Thunderstorm Wind 50 | Putnam Valley, NY | |
| Jul 3, 6:40 PM EDT | Thunderstorm Wind 50 | Putnam Valley, 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 3, 4:00 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.6 hours before the alert went out and 88 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
- 330 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 656 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNYC 032239 RRA SVRNYC NYC119-079-032330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW YORK NY 638 PM EDT THU JUL 3 1997 THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM EDT FOR THE PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST NEW YORK ...SOUTHERN PUTNAM COUNTY...NORTHERN WESTCHESTER... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM COMPLEX ACROSS SOUTHWEST PUTNAM AT 6:35PM AND MOVING EASTWARD. THIS STORM WILL PASS THROUGH THE TOWNS OF PUTNAM VALLEY...MAHOPAC AND JEFFERSON VALLEY THROUGH 7 PM. EXPECT DAMAGING WINDS...HAIL AND DEADLY LIGHTNING THROUGH THIS TIME. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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 3, 3:30 PM EDT, 3 hours 8 minutes before
NYZ067>081-NJZ002>006-011-CTZ005>012-040200- SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK...NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK NY 330 PM EDT THU JUL 3 1997 ...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH ACROSS THE TRI-STATE REGION UNTIL 10 PM... SHOWERS AND THUNDERSTORMS WERE FORMING ACROSS CENTRAL NEW YORK AND PENNSYLVANIA. THESE SHOWERS WILL MOVE THROUGH THE TRI-STATE REGION LATE THIS AFTERNOON AND INTO THE EARLY EVENING. AFTERWARDS...SKIES WILL CLEAR OUT...WITH A DRYING WEST WIND DEVELOPING. ON THE LATEST WEATHER MAPS...THE LEADING EDGE OF DRIER AND A BIT COOLER AIR...WAS POISED ACROSS WESTERN NEW YORK STATE. THIS COLD FRONT WAS MOVING EVER SO SLOWLY EASTWARD. A WEAK DISTURBANCE WAS PRODUCING THE SHOWERS AND THUNDERSTORMS IN THE INTERIOR AND THIS REGION WILL PASS THROUGH THIS EVENING. MEANWHILE THE COLD FRONT WON/T PASS THROUGH UNTIL FRIDAY NIGHT. IT COULD BRING IN A FEW SHOWERS...BUT NOT UNTIL AFTER MIDNIGHT. SO THE FOURTH OF JULY SHOULD SEE A MIX OF SUN AND CLOUDS...AND A BRISK WEST WIND. BUT THE THUNDERSTORMS OF TODAY COULD PRODUCE GUSTY WIND AND HAIL. ADDITIONALLY...THE HEAVY DOWNPOURS COULD PRODUCE VERY POOR VISIBILITY AND LOCALIZED FLOODING AND PONDING ON STREETS AND LOW LYING AREAS. IN THE MEANTIME...KEEP AN EYE TO THE SKY AND AN EAR TO THE LATEST NATIONAL WEATHER SERVICE FORECASTS...STATEMENTS AND POSSIBLE WARNINGS ON NOAA WEATHER RADIO OR OTHER MEDIA OUTLETS FOR THREATENING WEATHER FOR THE REMAINDER OF THE AFTERNOON AND THIS EVENING. WOOLDRIDGE
Special weather statement, Jul 3, 3:34 PM EDT, 3 hours 4 minutes before
NYZ067>081-NJZ002>006-011-CTZ005>012-040200- SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK...NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK NY 330 PM EDT THU JUL 3 1997 ...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH ACROSS THE TRI-STATE REGION UNTIL 10 PM... SHOWERS AND THUNDERSTORMS WERE FORMING ACROSS CENTRAL NEW YORK AND PENNSYLVANIA. THESE SHOWERS WILL MOVE THROUGH THE TRI-STATE REGION LATE THIS AFTERNOON AND INTO THE EARLY EVENING. AFTERWARDS...SKIES WILL CLEAR OUT...WITH A DRYING WEST WIND DEVELOPING. ON THE LATEST WEATHER MAPS...THE LEADING EDGE OF DRIER AND A BIT COOLER AIR...WAS POISED ACROSS WESTERN NEW YORK STATE. THIS COLD FRONT WAS MOVING EVER SO SLOWLY EASTWARD. A WEAK DISTURBANCE WAS PRODUCING THE SHOWERS AND THUNDERSTORMS IN THE INTERIOR AND THIS REGION WILL PASS THROUGH THIS EVENING. MEANWHILE THE COLD FRONT WON/T PASS THROUGH UNTIL FRIDAY NIGHT. IT COULD BRING IN A FEW SHOWERS...BUT NOT UNTIL AFTER MIDNIGHT. SO THE FOURTH OF JULY SHOULD SEE A MIX OF SUN AND CLOUDS...AND A BRISK WEST WIND. BUT THE THUNDERSTORMS OF TODAY COULD PRODUCE GUSTY WIND AND HAIL. ADDITIONALLY...THE HEAVY DOWNPOURS COULD PRODUCE VERY POOR VISIBILITY AND LOCALIZED FLOODING AND PONDING ON STREETS AND LOW LYING AREAS. IN THE MEANTIME...KEEP AN EYE TO THE SKY AND AN EAR TO THE LATEST NATIONAL WEATHER SERVICE FORECASTS...STATEMENTS ADND POSSIBLE WARNINGS ON NOAA WEATHER RADIO OR OTHER MEDIA OUTLETS FOR THREATENING WEATHER FOR THE REMAINDER OF THE AFTERNOON AND THIS EVENING. WOOLDRIDGE
Special weather statement, Jul 3, 3:36 PM EDT, 3 hours 2 minutes before
NYZ067>081-NJZ002>006-011-CTZ005>012-040200- SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION FOR EXTREME SOUTHEASTERN NEW YORK...NORTHEASTERN NEW JERSEY AND SOUTHERN CONNECTICUT NATIONAL WEATHER SERVICE NEW YORK NY 335 PM EDT THU JUL 3 1997...CORRECTED... ...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WATCH ACROSS THE TRI-STATE REGION UNTIL 10 PM... SHOWERS AND THUNDERSTORMS WERE FORMING ACROSS CENTRAL NEW YORK AND PENNSYLVANIA. THESE SHOWERS WILL MOVE THROUGH THE TRI-STATE REGION LATE THIS AFTERNOON AND INTO THE EARLY EVENING. ON THE LATEST WEATHER MAPS...THE LEADING EDGE OF DRIER AND A BIT COOLER AIR...WAS POISED ACROSS WESTERN NEW YORK STATE. THIS COLD FRONT WAS MOVING EVER SO SLOWLY EASTWARD. A WEAK DISTURBANCE WAS PRODUCING THE SHOWERS AND THUNDERSTORMS IN THE INTERIOR AND THIS REGION WILL PASS THROUGH THIS EVENING. MEANWHILE THE COLD FRONT WON/T PASS THROUGH UNTIL FRIDAY NIGHT. IT COULD BRING IN A FEW SHOWERS...BUT NOT UNTIL AFTER MIDNIGHT. SO THE FOURTH OF JULY SHOULD SEE A MIX OF SUN AND CLOUDS...AND A BRISK WEST WIND. BUT THE THUNDERSTORMS OF TODAY COULD PRODUCE GUSTY WIND AND HAIL. ADDITIONALLY...THE HEAVY DOWNPOURS COULD PRODUCE VERY POOR VISIBILITY AND LOCALIZED FLOODING AND PONDING ON STREETS AND LOW LYING AREAS. THE POTENTIAL ALSO EXISTS FOR THE FORMATION OF TORNADOS. REMEMBER THIS IS ONLY A WATCH...A WATCH MEANS CONDITIONS ARE RIPE FOR THE FORMATION OF WEATHER. A WARNING MEANS THAT THE WEATHER IS OCCURRING OR IMMENENT. IN THE MEANTIME...KEEP AN EYE TO THE SKY AND AN EAR TO THE LATEST NATIONAL WEATHER SERVICE FORECASTS...STATEMENTS AND POSSIBLE WARNINGS ON NOAA WEATHER RADIO OR OTHER MEDIA OUTLETS FOR THREATENING WEATHER FOR THE REMAINDER OF THE AFTERNOON AND THIS EVENING. WOOLDRIDGE
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 6:48 PM EDT | Tornado Warning | OKX | Westchester | 42 min |
Nearby
Severe 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.