Alert archive / Maryland / Flash Flood Warnings in 2000

Flash Flood Warning 19, NWS Philadelphia/Mount Holly

July 15, 2000Caroline County, Talbot County, Maryland

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 15, 2000, 12:20 AM EDT for Caroline County, Talbot County, Maryland. It was in force for 2 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
Jul 15, 2000, 12:20 AM EDT (04:20 UTC)
Expired
Jul 15, 2000, 2:45 AM EDT
In force
2 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Caroline County, MD, Talbot County, MD

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 4.3 hours before the alert went out and 111 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, Wallops Is Stn, VA at 00:00Z on 2000-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 692 joules per kilogram.LCLLFCEL10008507005003002001001 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, Wallops Is Stn, VA at 00:00Z on 2000-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.19395878Sfc1 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
692 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
927 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.4
Supercell composite
5.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KPHI 150425
FFWPHI
MDC011-041-150645-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1220 AM EDT SAT JUL 15 2000

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CAROLINE COUNTY IN EASTERN MARYLAND
  TALBOT COUNTY IN EASTERN MARYLAND

* UNTIL 245 AM EDT.

* AT 1215 AM EDT...WEATHER SERVICE RADAR INDICATED A THUNDERSTORM
WITH HEAVY RAIN AND FREQUENT LIGHTNING EXTENDING ACROSS THE COUNTIES
OF DORCHESTER AND TALBOT AND OVER THE WATERS OF CHESAPEAKE BAY.  THE
STORM WILL CONTINUE TO DRIFT NORTHEAST AROUND 10 MPH.  RAINFALL
RATES SHOULD RANGE FROM ONE TO TWO INCHES PER HOUR IN SOME PLACES.

* SOME LOCATIONS AFFECTED BY THE WARNING INCLUDE...
  TRAPPE...
  OXFORD...
  GOLDSBORO...
  EASTON...
  DENTON...

INTENSE LIGHTNING IS ALSO OCCURRING WITH THIS STORM.  MOVE INDOORS IF
POSSIBLE.  WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY.  IF OUTDOORS...STAY AWAY
FROM ISOLATED HIGH OBJECTS SUCH AS TREES.

FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO.
$$

IOVINO/NATIONAL WEATHER SERVICbE

LAT...LON 3874 7578 3857 7626 3874 7631 3889 7600
          3911 7579

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 8:26 PM EDTSevere Thunderstorm WarningPHIKent34 min
Jul 14, 11:45 PM EDTFlash Flood WarningPHIKent, Queen Anne's3 hr
Jul 15, 12:45 AM EDTSevere Thunderstorm WarningPHITalbot30 min
Jul 15, 1:10 AM EDTSevere Thunderstorm WarningPHICaroline35 min
Jul 15, 5:34 PM EDTSevere Thunderstorm WarningPHICaroline, Talbot26 min

Nearby

Flash Flood Warnings in Maryland, 2000Every flash flood warning in 2000

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.