Alert archive / New York / Flash Flood Warnings in 1993
Flash Flood Warning 21, NWS New York, NY
NWS New York, NY issued this flash flood warning at Dec 5, 1993, 12:15 PM EST for Suffolk County, New York. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Dec 5, 1993, 12:15 PM EST (17:15 UTC)
- Expired
- Dec 5, 1993, 3:15 PM EST
- In force
- 3 hr
- Issued by
- NWS New York, NY
- Area
- Whole counties
County Suffolk County, NY
The nearest sounding before it
Albany, NY (KALB), launched 12:00Z, 5.3 hours before the alert went out and 216 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 517 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 22 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 051716 FFWNYC NYC103-052015- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE NEW YORK NY 1215 PM EST SUN DEC 5 1993 THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS AND CREEKS EFFECTIVE UNTIL 315 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST NEW YORK ...SUFFOLK COUNTY HEAVY RAINS CONTINUE TO FALL ACROSS SUFFOLK COUNTY EARLY THIS AFTERNOON. THE NEW NATIONAL WEATHER SERVICE DOPPLER RADAR IN BROOHAVEN INDICATES AN AREAS OF HEAVY RAIN AND EMBEDDED THUNDERSTORMS MOVING INTO SUFFOLK COUNTY. IT IS ESTIMATED THAT ANOTHER HALF TO ONE INCH OF RAIN WILL FALL ACROSS SUFFOLK COUNTY WITHIN THE NEXT ONE TO TWO HOURS. FLOODING OF STREETS AND HIGHWAYS IS LIKELY AND SMALL STREAMS AND CREEKS WILL REACH BANKFULL. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. BROWN
What forecasters said that day
The local office's own words before this flash flood 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, Dec 5, 7:30 AM EST, 4 hours 45 minutes before
NYZ067>081-NJZ001>014-051600- SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION NATIONAL WEATHER SERVICE NEW YORK NY 730 AM EST SUN DEC 5 1993 ...A FLOOD WATCH REMAINS IN EFFECT FOR TODAY FOR ALL OF THE NORTHERN HALF OF NEW JERSEY AS WELL AS SOUTHEASTERN NEW YORK...INCLUDING LONG ISLAND AND NEW YORK CITY AS WELL AS WESTCHESTER... ROCKLAND...PUTNAM ...AND ORANGE COUNTIES... RAIN CONTINUES THIS SUNDAY MORNING FROM A SLOW-MOVING BUT INTENSIFYING STORM CENTERED OVER VIRGINIA. RAIN INCREASED IN INTENSITY OVERNIGHT AS THE ENERGY FROM THIS STORM SURGED NORTHWARD. RAIN AMOUNTS HAVE BEEN GENERALLY 1 1/4 TO AROUND 2 INCHES SINCE RAIN BEGAN SATURDAY...AND AN ADDITIONAL 1/2 TO 1 INCH...LOCALLY 1 1/2 INCHES...WILL OCCUR TODAY. RAIN IS EXPECTED TO TAPER OFF LATER THIS AFTERNOON OR BY THIS EVENING AS THE STORM/S CENTER MOVES TO JUST SOUTH AND EAST OF NEW YORK CITY LATER TODAY. SMALL STREAMS AND CREEKS IN THE AREA COULD RISE TO NEAR BANKFULL THIS MORNING...AND SOME OF THEM MAY OVERFLOW THEIR BANKS SO AREA RESIDENTS WHO LIVE NEAR FLOOD-PRONE STREAMS SHOULD BE ON THE LOOKOUT FOR RISING WATERS THIS MORNING. AMONG THE LARGER RIVERS...THE SAW MILL AND BRONX RIVERS IN WESTCHESTER COUNTY WILL ALSO BEAR WATCHING. AT 730 AM...RADAR INDICATED THAT AREAS OF MODERATELY HEAVY TO HEAVY RAIN WERE EMBEDDED WITHIN THE GENERAL LIGHT RAIN THAT COVERED THE REGION...AND THE RAIN WAS MOVING NORTHEAST AROUND 35 MILES AN HOUR. RAIN TOTALS THROUGH 7 AM INCLUDE...1.81 INCHES AT CENTRAL PARK...1.70 INCHES AT NEWARK AIRPORT...1.50 INCHES AT LAGUARDIA...1.25 INCHES AT JFK...AND 1.42 INCHES AT MACARTHUR AIRPORT AT ISLIP. AUTOMATED RAIN GAGES IN NORTHERN NEW JERSEY SHOWED THE HIGHEST AMOUNTS WERE 2.20 INCHES AT BOONTON AND 2.26 INCHES AT MORRIS PLAINS. OTHER LOCATIONS INDICATED GENERALLY BETWEEN 1 AND 2 INCHES TOTAL. MOTORISTS WILL HAVE VERY POOR DRIVING CONDITIONS DUE TO THE COPIOUS RAINFALL OF LAST NIGHT AND THIS MORNING. FLOODED UNDERPASSES AND CLOGGED DRAINS WILL IMPAIR DRIVING...AND MOTORISTS SHOULD WATCH OUT FOR PONDING OF WATER. DON/T DRIVE THROUGH FLOODED ROADS...YOU NEVER KNOW FOR SURE JUST HOW DEEP THAT WATER IS...AND YOU COULD GET STALLED OR WORSE. WINDS ARE EXPECTED TO TURN AROUND FROM SOUTH TO NORTHEAST DURING THIS MORNING...AND THIS MAY CAUSE SOME MINOR COASTAL FLOODING AT TIMES OF HIGH TIDE...WHICH WOULD BE AROUND MIDDAY OR EARLY AFTERNOON DEPENDING ON YOUR SPECIFIC LOCATION. THE SLOWLY DEPARTING STORM SHOULD TAKE THE RAIN AWAY LATER TODAY... WITH PARTIAL CLEARING RESULTING TONIGHT. ALSO...THE WINDS WILL TURN AROUND TO THE NORTHWEST BUT CONTINUE TO BE BLUSTERY. MONDAY LOOKS LIKE A PARTLY CLOUDY DAY WITH DIMINISHING WINDS BUT COOLER TEMPERATURES. THE NEXT STATEMENT WILL BE ISSUED BY 11 AM.
Special weather statement, Dec 5, 7:33 AM EST, 4 hours 42 minutes before
NYZ067>081-NJZ001>014-051600- SPECIAL WEATHER STATEMENT AND WEATHER MAP DISCUSSION NATIONAL WEATHER SERVICE NEW YORK NY 730 AM EST SUN DEC 5 1993 ...A FLOOD WATCH REMAINS IN EFFECT FOR TODAY FOR ALL OF THE NORTHERN HALF OF NEW JERSEY AS WELL AS SOUTHEASTERN NEW YORK...INCLUDING LONG ISLAND AND NEW YORK CITY AS WELL AS WESTCHESTER... ROCKLAND...PUTNAM ...AND ORANGE COUNTIES... RAIN CONTINUES THIS SUNDAY MORNING FROM A SLOW-MOVING BUT INTENSIFYING STORM CENTERED OVER VIRGINIA. RAIN INCREASED IN INTENSITY OVERNIGHT AS THE ENERGY FROM THIS STORM SURGED NORTHWARD. RAIN AMOUNTS HAVE BEEN GENERALLY 1 1/4 TO AROUND 2 INCHES SINCE RAIN BEGAN SATURDAY...AND AN ADDITIONAL 1/2 TO 1 INCH...LOCALLY 1 1/2 INCHES...WILL OCCUR TODAY. RAIN IS EXPECTED TO TAPER OFF LATER THIS AFTERNOON OR BY THIS EVENING AS THE STORM/S CENTER MOVES TO JUST SOUTH AND EAST OF NEW YORK CITY LATER TODAY. SMALL STREAMS AND CREEKS IN THE AREA COULD RISE TO NEAR BANKFULL THIS MORNING...AND SOME OF THEM MAY OVERFLOW THEIR BANKS SO AREA RESIDENTS WHO LIVE NEAR FLOOD-PRONE STREAMS SHOULD BE ON THE LOOKOUT FOR RISING WATERS THIS MORNING. AMONG THE LARGER RIVERS...THE SAW MILL AND BRONX RIVERS IN WESTCHESTER COUNTY WILL ALSO BEAR WATCHING. AT 730 AM...RADAR INDICATED THAT AREAS OF MODERATELY HEAVY TO HEAVY RAIN WERE EMBEDDED WITHIN THE GENERAL LIGHT RAIN THAT COVERED THE REGION...AND THE RAIN WAS MOVING NORTHEAST AROUND 35 MILES AN HOUR. RAIN TOTALS THROUGH 7 AM INCLUDE...1.81 INCHES AT CENTRAL PARK...1.70 INCHES AT NEWARK AIRPORT...1.50 INCHES AT LAGUARDIA...1.25 INCHES AT JFK...AND 1.42 INCHES AT MACARTHUR AIRPORT AT ISLIP. AUTOMATED RAIN GAGES IN NORTHERN NEW JERSEY SHOWED THE HIGHEST AMOUNTS WERE 2.20 INCHES AT BOONTON AND 2.26 INCHES AT MORRIS PLAINS. OTHER LOCATIONS INDICATED GENERALLY BETWEEN 1 AND 2 INCHES TOTAL. MOTORISTS WILL HAVE VERY POOR DRIVING CONDITIONS DUE TO THE COPIOUS RAINFALL OF LAST NIGHT AND THIS MORNING. FLOODED UNDERPASSES AND CLOGGED DRAINS WILL IMPAIR DRIVING...AND MOTORISTS SHOULD WATCH OUT FOR PONDING OF WATER. DON/T DRIVE THROUGH FLOODED ROADS...YOU NEVER KNOW FOR SURE JUST HOW DEEP THAT WATER IS...AND YOU COULD GET STALLED OR WORSE. WINDS ARE EXPECTED TO TURN AROUND FROM SOUTH TO NORTHEAST DURING THIS MORNING...AND THIS MAY CAUSE SOME MINOR COASTAL FLOODING AT TIMES OF HIGH TIDE...WHICH WOULD BE AROUND MIDDAY OR EARLY AFTERNOON DEPENDING ON YOUR SPECIFIC LOCATION. THE SLOWLY DEPARTING STORM SHOULD TAKE THE RAIN AWAY LATER TODAY... WITH PARTIAL CLEARING RESULTING TONIGHT. ALSO...THE WINDS WILL TURN AROUND TO THE NORTHWEST BUT CONTINUE TO BE BLUSTERY. MONDAY LOOKS LIKE A PARTLY CLOUDY DAY WITH DIMINISHING WINDS BUT COOLER TEMPERATURES. THE NEXT STATEMENT WILL BE ISSUED BY 11 AM.
Nearby
Flash Flood Warnings in New York, 1993Every flash flood warning in 1993
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.