Alert archive / New York / Flash Flood Warnings in 1991
Flash Flood Warning 13, NWS New York, NY
NWS New York, NY issued this flash flood warning at Aug 19, 1991, 8:47 AM EDT for Bronx County, New York County, Westchester County, New York. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Aug 19, 1991, 8:47 AM EDT (12:47 UTC)
- Expired
- Aug 19, 1991, 4:15 PM EDT
- In force
- 7 hr
- Issued by
- NWS New York, NY
- Area
- Whole counties
Counties Bronx County, NY, New York County, NY, Westchester County, NY
The nearest sounding before it
Albany, NY (KALB), launched 12:00Z, 0.8 hours before the alert went out and 197 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
- 735 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 79 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 191257 FFWNYC NYC005-047-059-061-081-085-087-103-119-192045- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NEW YORK CITY NY 847 AM EDT MON AUG 19 1991 THE NATIONAL WEATHER SERVICE IN NEW YORK CITY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 445 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION...S... IN SOUTHEAST NEW YORK ...BRONX COUNTY...KINGS COUNTY...NASSAU COUNTY...NEW YORK COUNTY ...QUEENS COUNTY...RICHMOND COUNTY...ROCKLAND COUNTY...SUFFOLK COUN ...WESTCHESTER COUNTY HURRICANE BOB MAY DEPOSIT BETWEEN 5 TO 8 INCHES OF RAIN ACROSS THE NEW YORK CITY AREA AS IT TRACKS NORTHEASTWARD ALONG THE COASTAL WATERS. AS SUCH A FLOOD WARNING HAS BEEN ISSUED FOR EXTREME SOUTHEASTERN NEW YORK STATE WHERE CONSIDERABLE URBAN...RIVER...SMALL STREAM AND COASTAL FLOODING IS LIKELY THIS AFTERNOON. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TrO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
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, Aug 19, 7:45 AM EDT, 1 hour 2 minutes before
NYZ014>017-NJZ001-005-007-015-191300- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW YORK NY 730 AM EDT MON AUG 19 1991 ...HURRICANE WARNING IN EFFECT THROUGH THIS AFTERNOON... ...TORNADO WATCH IN EFFECT FOR SUFFOLK COUNTY UNTIL 600 PM... ...FLOOD WATCH IN EFFECT TODAY... A BAND OF THUNDERSTORMS CONTAINING HEAVY RAIN EXTENDED FROM NEW YORK CITY EAST TO CENTRAL LONG ISLAND. ANOTHER BAND OF THUNDERSTORMS WITH HEAVY RAIN WAS OVER THE OCEAN FROM 45 TO 75 MILES SOUTHEAST OF NEW YORK CITY. THESE BANDS OF THUNDERSTORMS WERE PART OF AN AREA OF RAIN OVER SOUTHERN VERMONT...SOUTHERN NEW HAMPSHIRE...MASSACHUSETTS...CONNECTICUT...RHODE ISLAND...SOUTHEAST NEW YORK FROM ALBANY SOUTHWARD...LONG ISLAND...LONG ISLAND SOUND... THE NEW YORK METROPOLITAN AREA...NEW JERSEY...EASTERN PENNSYLVANIA... DELAWARE AND OVER THE OCEAN UP TO 175 MILES SOUTHEAST OF NEW YORK CITY. MOVEMENT WAS NORTHEAST AT 30 MILES AN HOUR. IFC
Special weather statement, Aug 19, 8:37 AM EDT, 10 minutes before
NYZ014>017-NJZ001-005-007-015-191400- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE NEW YORK NY 830 AM EDT MON AUG 19 1991 ...HURRICANE WARNING IN EFFECT THROUGH THIS AFTERNOON... ...TORNADO WATCH IN EFFECT FOR SUFFOLK COUNTY UNTIL 600 PM... ...FLOOD WATCH IN EFFECT TODAY... A BAND OF SHOWERS AND THUNDERSTORMS CONTAINING TORRENTIAL DOWNPOURS COVERED ALL OF NEW YORK CITY...FAIRFIELD COUNTY CONNECTICUT...ROCKLAND ...PUTNAM AND WESTCHESTER COUNTIES IN SOUTHEAST NEW YORK...NASSAU COUNTY ...MOST OF SUFFOLK COUNTY WEST OF ISLIP...ALL OF NORTHEAST AND CENTRAL NEW JERSEY. BANDS OF SHOWERS AND THUNDERSTORMS CONTAINING HEAVY RAIN WAS ALSO IN PROGRESS OVER THE NEARBY COASTAL WATERS FROM FIRE ISLAND SOUTH TO ATLANTIC CITY. LIGHTER RAIN WAS DETECTED OVER THE REMAINDER OF EASTERN LONG ISLAND... MOST OF SOUTHERN NEW ENGLAND...ALL OF EASTERN NEW YORK FROM NEWBURGH NORTH TO GLEN FALLS...THE REST OF NEW JERSEY...EXTREME EASTERN PENNSYLVANIA AND OVER THE OCEAN UP TO 175 MILES SOUTHEAST OF NEW YORK CITY. MOVEMENT WAS NORTHNORTHEAST AT 20 TO 25 MILES AN HOUR. GIGI
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 8:47 AM EDT | Flash Flood Warning | OKX | Richmond | 7 hr |
| Aug 19, 8:47 AM EDT | Flash Flood Warning | OKX | Nassau, Suffolk | 7 hr |
| Aug 19, 8:47 AM EDT | Flash Flood Warning | OKX | Kings, Queens | 7 hr |
| Aug 19, 8:47 AM EDT | Flash Flood Warning | OKX | Rockland | 7 hr |
Nearby
Flash Flood Warnings in New York, 1991Every flash flood warning in 1991
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.