Alert archive / Delaware / Flash Flood Warnings in 1989
Flash Flood Warning 4, NWS Wilmington, NC
NWS Wilmington, NC issued this flash flood warning at Jul 16, 1989, 4:18 PM EDT for New Castle County, Delaware. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 16, 1989, 4:18 PM EDT (20:18 UTC)
- Expired
- Jul 16, 1989, 8:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS Wilmington, NC
- Area
- Whole counties
County New Castle County, DE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Atlantic City In, NJ (KACY), launched 12:00Z, 8.3 hours before the alert went out and 99 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
- 164 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1006 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KILG 162020
FFWILG
DEC003-170015-
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON DE
418 PM EDT SUN JUL 16 1989
THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 8 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTH DELAWARE
...NEW CASTLE
THE CHRISTINA RIVER AT COOCHS BRIDGE APPEARS TO BE LEVELING OFF NEAR
11 1/2 FEET...2 1/2 FEET ABOVE FLOOD STAGE. THE WHITE CLAY CREEK HAS
CRESTED DURING THE PAST HOUR AT 15.2 FEET AND IS NOW FALLING SLOWLY.
MANY ROADS ARE STILL FLOODED IN THE USUAL NUISANCE AREAS. SINCE
FLOODING WILL CONTINUE ALONG THE CHRISTINA...WHITE CLAY AND PIKE
CREEKS AND THEIR TRIBUTARIES...INTO THIS EVENING...THE FLOOD WARNING
FOR NEW CASTLE COUNTY IS EXTENDED UNTIL 8PM TONIGHT.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH qFLOODING IS
OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.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, Jul 16, 10:19 AM EDT, 5 hours 59 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE WILMINGTON NC 1015 AM EDT SUN JUL 16 1989 FROM 850 TO 910 THIS SUNDAY MORNING A LINE OF HEAVY SHOWERS WAS MOVING NORTHEAST THROUGH SOUTH COASTAL NORTH CAROLINA. WIND GUSTS WERE CLOCKED AT 33 KNOTS OR 38 MILES AN HOUR AT 910 AT NEW HANOVER COUNTY AIRPORT. CAROLINA BEACH AND SOUTHPORT HAD WIND GUSTS TO 40 KNOTS AROUND 9 OCLOCK. BOATERS AND MARINE IN SOUTH COASTAL NORTH CAROLINA WILMINGTON TO CAPE LOOKOUT SHOULD BE ALERT FOR THREATENING CONDITIONS AND TAKE COVER OR EVASIVE ACTION AS THIS LINE OF SHOWERS AND POSSIBLE THUNDERSTORMS CONTINUES TO MOVE UP THE COAST THIS MORNING.
Special weather statement, Jul 16, 10:40 AM EDT, 5 hours 38 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED NATIONAL WEATHER SERVICE WILMINGTON NC 1015 AM EDT SUN JUL 16 1989 FROM 950 TO 1010 THIS SUNDAY MORNING A LINE OF HEAVY SHOWERS WAS MOVING NORTHEAST THROUGH SOUTH COASTAL NORTH CAROLINA. WIND GUSTS WERE CLOCKED AT 33 KNOTS OR 38 MILES AN HOUR AT 1010 AT NEW HANOVER COUNTY AIRPORT. CAROLINA BEACH AND SOUTHPORT HAD WIND GUSTS TO 40 KNOTS AROUND 9 OCLOCK. BOATERS AND MARINE IN SOUTH COASTAL NORTH CAROLINA WILMINGTON TO CAPE LOOKOUT SHOULD BE ALERT FOR THREATENING CONDITIONS AND TAKE COVER OR EVASIVE ACTION AS THIS LINE OF SHOWERS AND POSSIBLE THUNDERSTORMS CONTINUES TO MOVE UP THE COAST THIS MORNING. CORRECTED...TIMES IN TEXT
Special weather statement, Jul 16, 11:49 AM EDT, 4 hours 29 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE WILMINGTON NC 1148 AM EDT SUN JUL 16 1989 AT 1130 THIS FORENOON...THE LINE OF HEAVY SHOWERS THAT PASSED THROUGH THE CAPE FEAR REGION AROUND 10 OCLOCK THIS MORNING WAS LOCATED NORTH AND SOUTH JUST WEST OF CAPE LOOKOUT AND EAST OF NEW BERN. MARINE INTERESTS AROUND CARTERET COUNTY ON THE OCEAN FRONT AND PAMLICO SOUND SHOULD STILL BE ALERT FOR LOCALLY STRONG GUSTY WINDS WITH THIS LINE OF SHOWERS AND THUNDERSTORMS WHICH WAS MOVING NORTHEAST ABOUT 35 MILES AN HOUR. TAKE REFUGE OR EVASIVE ACTIONS WHEN THREATENING CONDITIONS ARISE. RAIN PATCHES AND SHOWERS COVERED PARTS OF EASTERN SOUTH CAROLINA AND MUCH OF EASTERN NORTH CAROL@INA INTO SOUTHEAST VIRGINIA WITH HEAVIER THUNDERSTORMS NEAR PAMLICO SOUND. THUNDERSTORMS ALSO EXTENDED ALONG THE ATLANTIC GULF STREAM SOUTHEAT OF THE CAROLINA COASTLINES. THE PRECIPITATION WAS MOVING NORTHEAST ABOUT 35 MILES AN HOUR.
Special weather statement, Jul 16, 2:04 PM EDT, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CAPE HATTERAS NC 200 PM EDT SUN JUL 16 1989 THUNDERSTORMS WITH VERY HEAVY RAIN AND HIGH WINDS ARE OVER PARTS OF NORTHEAST NORTH CAROLINA...MAINLY BETWEEN EDENTON AND MOREHEAD CITY. A THUNDERSTORM...WITH WIND GUST TO 50 MILES AN HOUR WAS REPORTED AT THE ALLIGATOR RIVER BRIDGE ALONG WITH HEAVY RAIN. BOATERS AND MARINE INTEREST SHOULD BE ALERT TO THESE STORMS AS THEY MOVE THROUGH THE AREA DURING THE NEXT SEVERAL HOURS. MOVEMENT WAS TO THE NORTHEAST AT 25 MILES AN HOUR. TP .
Special weather statement, Jul 16, 2:49 PM EDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE CAPE HATTERAS NC 245 PM EDT SUN JUL 16 1989 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT PORTIONS OF THE PAMLICO SOUND UNTIL 315 PM... AT 235 PM EDT...THUNDERSTORMS ACCOMPANINED BY VERY HEAVY RAIN...STRONG GUSTY WINDS...AND FREQUENT DANGEROUS LIGHTNING EXTENDED ALONG THE COAST OF NORTH CAROLINA FROM COROLLA SOUTH TO THE PAMLICO SOUND JUST WEST OF BUXTON. THESE THUNDERSTORMS MAY ALSO PRODUCE WATERSPOUTS OVER THE SOUNDS AND COASTAL WATERS. MARINERS SHOULD BE ALERT FOR THESE THUNDERSTORMS AND PREPARE THEIR VESSESLS FOR ROUGH WEATHER CONDITIONS. RESIDENTS AND VISITORS TO THE OUTER BANKS SHOULD ALSO BE ALERT...READY TO MOVE TO A SAFE SHELTER IF THREATENING WEATHER APPROACHES. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MILES AN HOUR. ISOLATED THUNDERSTORMS AND SHOWERS WERE ALSO DETECTED OVER THE NORTHERN COASTAL AREA OF NORTH CAROLINA. SHOWERS WERE OVER GATES HERTFORD AND BERTIE COUNTIES. SHOWERS WERE ALSO DETECETD OVER WESTERN HYDE COUNTY IN THE CENTRAL COASTAL AREA. OVER THE COASTAL AND OFFSHORE WATERS...THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND STRONG GUSTY WINDS...EXTENDED MORE THAN 125 MILES EAST OF CAPE HATTERAS. MOVEMENT WAS NORTHEAST AT 25 MILES AN HOUR. STAY TUNED TO LOCAL RADIO...TV...OR NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. JONES
Nearby
Flash Flood Warnings in Delaware, 1989Every flash flood warning in 1989
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.