Alert archive / Delaware / Flash Flood Warnings in 1992
Flash Flood Warning 6, NWS Wilmington, NC
NWS Wilmington, NC issued this flash flood warning at Dec 11, 1992, 8:42 AM EST for New Castle County, Delaware. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Dec 11, 1992, 8:42 AM EST (13:42 UTC)
- Expired
- Dec 11, 1992, 12:45 PM EST
- In force
- 4 hr
- Issued by
- NWS Wilmington, NC
- Area
- Whole counties
County New Castle County, DE
The nearest sounding before it
Atlantic City In, NJ (KACY), launched 12:00Z, 1.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 659 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 57 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 KILG 111401 FFWILG DEC003-111745- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING CORRECTION NATIONAL WEATHER SERVICE WILMINGTON DE 842 AM EST FRI DEC 11 1992 THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS EXTENDED THE FLOOD WARNING EFFECTIVE UNTIL 1245 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION...... IN NORTH DELAWARE ...NEW CASTLE COUNTY THE CHRISTINA RIVER CONTINUES TO RISE AND AT 8AM INDICATED A READING OF 11.4 FEET...ALMOST 2 1/5 FEET ABOVE FLOOD STAGE. FLOODING IS OCCURRING ON THE UPPER REACHES OF THE CHRISTINA GENERALLY UPSTREAM FROM CHURCHMAN'S MARSH. WATER WAS CROSSING SMALLEYS DAM ROAD CAUSING FLOODING...AND SOME ROADWAY FLOODING HAS BEEN REPORTED IN THE USUAL POOR DRAINAGE AREAS WHEN HEAVY RAINS FALL IN THE AREA. THE CHRISTINA SHOULD CREST WITHIN THE NEXT HOUR OR SO AND THEN BEGIN TO FALL. SINCE YESTERDAY...OVER 2 INCHES OF RAIN HAS FALLEN IN PARTS OF NEW CASTLE COUNTY...BUT ONLY LIGHT RAIN IS EXPECTED FOR THE REMAINDER OF TODAY. THE WHITE CLAY CREEK IN STANTON IS ALSO FLOODING. FLOODING BEGINS AT 13 FEET AND THE WHITE CLAY WAS JUST STARTING TO SPILL OUT OF BANKS IN THE DELAWARE PARK AREA. SOME OUT OF BANKS FLOODING WILL ALSO OCCUR DOWNSTREAM AS FAR AS WHERE THE WHITE CLAY MERGES WITH THE CHRISTINA NEAR NEWPORT. A FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEV|ER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. CS
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 11, 6:09 AM EST, 2 hours 33 minutes before
NCZ001-002-017-111400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CAPE HATTERAS NC 600 AM EST FRI DEC 11 1992 ...GALE WARNING IS IN EFFECT FOR MUCH OF EASTERN NORTH CAROLINA INCLUDING THE COASTAL WATERS AND SOUNDS... YESTERDAYS ONSHORE WINDS HAVE SPREAD SAND ACROSS ROADWAYS ALONG THE OUTER BANKS...AS A RESULT CREATING HAZARDOUS TRAVELLING CONDITIONS FOR THIS MORNINGS COMMUTE. PORTIONS OF HIGHWAY 12 BETWEEN OREGON INLET AND RODANTHE AND ON THE NORTH END OF OCRACOKE ISLAND WERE REPORTED COMPLETELY SAND COVERED IN SOME LOCATIONS. ALTHOUGH NO ONSHORE WINDS ARE ANTICIPATED TODAY...STRONG WEST WINDS WILL PUSH SOUND WATERS UP ON THE EAST BANKS OF THE PAMLICO AND ALBEMARLE SOUNDS...WITH PLACES LIKE THE COLLINGTON AREA MOST LIKELY TO EXPERIENCE SHALLOW FLOODING. THESE STRONG WINDS ARE BEING CAUSED BY THE CIRCULATION AROUND A SLOW MOVING INTENSE LOW PRESSURE SYSTEM CURRENTLY OVER NORTHERN VIRGINIA. THIS LOW WILL DRIFT NORTHEASTWARD AND BE IN A POSITION OFF THE DELAWARE COAST BY NIGHTFALL. AS A RESULT THE STRONGEST WINDS WILL OCCUR TODAY AND BEGIN TO SLOWLY SUBSIDE LATE TODAY THROUGH SATURDAY AS THE LOW TRACKS FURTHER AWAY FROM NORTH CAROLINA. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION AND RADIO STATIONS FOR POSSIBLE ADDITIONAL STATEMENTS. DCH
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 11, 4:40 AM EST | Flash Flood Warning | ILM | New Castle | 4 hr |
| Dec 11, 12:45 PM EST | Flash Flood Warning | ILM | New Castle | 4 hr |
Nearby
Flash Flood Warnings in Delaware, 1992Every flash flood warning in 1992
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.