Alert archive / Maryland / Flash Flood Warnings in 1999

Flash Flood Warning 82, NWS Wakefield, VA

September 16, 1999Dorchester County, Maryland

NWS Wakefield, VA issued this flash flood warning at Sep 16, 1999, 4:55 PM EDT for Dorchester County, Maryland. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 16, 1999, 4:55 PM EDT (20:55 UTC)
Expired
Sep 16, 1999, 8:00 PM EDT
In force
3 hr
Issued by
NWS Wakefield, VA
Area
Whole counties

County Dorchester County, MD

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.9 hours before the alert went out and 128 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 1999-09-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 1999-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
577 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
268 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

NWS Wakefield, VA wrote its last area forecast discussion before this flash flood warning went out at Sep 16, 12:25 PM EDT, 4 hours 30 minutes earlier.

Area forecast discussion, Sep 16, 12:25 PM EDT, 4 hours 30 minutes before
WAKEFIELD AREA FORECAST DISCUSSION.
NATIONAL WEATHER SERVICE WAKEFIELD VA
1225 PM EDT THU SEP 16 1999

DISCN:
SORRY...DID NOT HAVE TIME TO ISSUE THIS ERLIER.  FLOYD
MOVING QUICKLY NNE UP VA ERN SHR...AND WILL BE NE OF
OUR CWA BY SUNSET.  RAIN WILL END SW TO NE THIS AFTN
AND WNDS WILL GRADUALLY DIMINISH THIS EVENING/TNGT.

.AKQ...HURRICANE WARNING FOR ATLC CSTL WTRS CURRITUCK BCH LGT
       TO FENWICK ISLD...INCLDG SNDS...AND CHES BAY S OF SMITH PT
    ...TROPICAL STORM WARNING INTERIOR SE MD
    ...HIGH WIND WARNING/FLOOD WARNING CNTRL VA...NRN NE NC.

GINGRICH

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 15, 8:54 PM EDTFlash Flood WarningAKQSouthampton6 hr
Sep 15, 8:54 PM EDTFlash Flood WarningAKQCity of Chesapeake, City of Norfolk, City of Portsmouth, City of Suffolk6 hr
Sep 15, 8:54 PM EDTFlash Flood WarningAKQIsle of Wight, City of Franklin6 hr
Sep 15, 10:14 PM EDTFlash Flood WarningAKQYork, City of Hampton, City of Poquoson5 hr
Sep 15, 10:14 PM EDTFlash Flood WarningAKQJames City, City of Newport News5 hr
Sep 15, 10:14 PM EDTFlash Flood WarningAKQCity of Williamsburg5 hr
Sep 15, 10:14 PM EDTFlash Flood WarningAKQGloucester, Mathews5 hr
Sep 15, 10:14 PM EDTFlash Flood WarningAKQSurry5 hr
Sep 16, 12:07 AM EDTFlash Flood WarningAKQPrince George, City of Hopewell3 hr
Sep 16, 12:07 AM EDTFlash Flood WarningAKQGreensville, Sussex3 hr
Sep 16, 12:07 AM EDTFlash Flood WarningAKQCity of Petersburg3 hr
Sep 16, 12:07 AM EDTFlash Flood WarningAKQCity of Emporia3 hr
Sep 16, 12:07 AM EDTFlash Flood WarningAKQCharles City3 hr
Sep 16, 1:37 AM EDTTornado WarningAKQIsle of Wight, Surry33 min
Sep 16, 2:22 AM EDTFlash Flood WarningAKQGloucester, King and Queen, King William, Middlesex, New Kent118 min
Sep 16, 2:22 AM EDTFlash Flood WarningAKQMathews118 min
Sep 16, 2:22 AM EDTFlash Flood WarningAKQLancaster118 min
Sep 16, 3:26 AM EDTFlash Flood WarningAKQGreensville, Isle of Wight, Southampton, Surry, Sussex2 hr
Sep 16, 3:26 AM EDTFlash Flood WarningAKQPrince George2 hr
Sep 16, 3:26 AM EDTFlash Flood WarningAKQCity of Emporia2 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQJames City, York, City of Williamsburg5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQAmelia, Chesterfield, Dinwiddie, Nottoway5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQCity of Hampton, City of Newport News, City of Poquoson5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQPrince George, City of Colonial Heights, City of Petersburg5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQCaroline, Hanover, Henrico, King William, New Kent5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQEssex, Gloucester, King and Queen, Middlesex5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQLancaster, Northumberland, Richmond, Westmoreland5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQBrunswick, Greensville, Southampton, Sussex, City of Emporia5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQCity of Richmond5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQCity of Hopewell5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQCharles City, Isle of Wight, Surry5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQLunenburg, Mecklenburg5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQCity of Suffolk5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQCity of Franklin5 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQMathews5 hr
Sep 16, 8:57 AM EDTFlash Flood WarningAKQCity of Chesapeake2 hr
Sep 16, 10:10 AM EDTTornado WarningAKQCity of Chesapeake30 min
Sep 16, 10:53 AM EDTFlash Flood WarningAKQGreensville, City of Emporia6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQCharles City, Chesterfield, Henrico, James City, New Kent, Prince George and 1 more6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQGloucester, Mathews6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQCity of Chesapeake, City of Norfolk, City of Portsmouth, City of Suffolk6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQCity of Colonial Heights, City of Petersburg6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQSouthampton6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQYork, City of Williamsburg6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQIsle of Wight, City of Franklin6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQBrunswick6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQCity of Richmond6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQCaroline, Hanover, King William6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQCity of Hampton, City of Newport News, City of Poquoson6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQDinwiddie, Lunenburg, Nottoway6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQCity of Hopewell6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQSussex6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQEssex, Lancaster, Northumberland, Richmond, Westmoreland6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQKing and Queen, Middlesex6 hr
Sep 16, 10:53 AM EDTFlash Flood WarningAKQMecklenburg6 hr
Sep 16, 4:55 PM EDTFlash Flood WarningAKQGloucester, Mathews3 hr
Sep 16, 4:55 PM EDTFlash Flood WarningAKQAccomack3 hr
Sep 16, 4:55 PM EDTFlash Flood WarningAKQJames City, York, City of Hampton, City of Newport News, City of Poquoson, City of Williamsburg3 hr
Sep 16, 4:55 PM EDTFlash Flood WarningAKQLancaster, Northumberland, Richmond, Westmoreland3 hr
Sep 16, 4:55 PM EDTFlash Flood WarningAKQEssex, King and Queen, Middlesex3 hr
Sep 16, 4:55 PM EDTFlash Flood WarningAKQNorthampton3 hr
Sep 16, 4:55 PM EDTFlash Flood WarningAKQKing William, New Kent3 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQCity of Chesapeake, City of Portsmouth3 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQCity of Norfolk, City of Virginia Beach3 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQIsle of Wight, City of Suffolk3 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQJames City, King and Queen3 hr
Sep 15, 8:54 PM EDTFlash Flood WarningAKQGates6 hr
Sep 15, 11:17 PM EDTTornado WarningAKQGates, Pasquotank, Perquimans18 min
Sep 16, 12:11 AM EDTTornado WarningAKQCamden, Currituck34 min
Sep 16, 3:26 AM EDTFlash Flood WarningAKQBertie2 hr
Sep 16, 5:34 AM EDTFlash Flood WarningAKQBertie, Hertford5 hr
Sep 16, 8:57 AM EDTFlash Flood WarningAKQChowan, Pasquotank, Perquimans2 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQBertie3 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQChowan, Perquimans3 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQBladen3 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQPasquotank3 hr
Sep 16, 5:06 PM EDTFlash Flood WarningAKQCurrituck3 hr

Nearby

Flash Flood Warnings in Maryland, 1999Every flash flood warning in 1999

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.