Alert archive / Maryland / Flash Flood Warnings in 2007
Flash Flood Warning 37, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 25, 2007, 11:45 PM EDT for Caroline County, Talbot 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
- Aug 25, 2007, 11:45 PM EDT (03:45 UTC)
- Expired
- Aug 26, 2007, 2:15 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Caroline County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 49 km from the middle of the area, began a volume at 03:48 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 3.8 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.
- Mixed-layer CAPE
- 3225 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 996 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KPHI 260347
FFWPHI
MDC011-041-260615-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1145 PM EDT SAT AUG 25 2007
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CAROLINE COUNTY IN EASTERN MARYLAND...
EASTERN TALBOT COUNTY IN EASTERN MARYLAND...
* UNTIL 215 AM EDT
* AT 1141 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM THUNDERSTORMS OVER THE WARNED AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CORDOVA...
RIDGELY...QUEEN ANNE...GREENSBORO AND DENTON
AS OF 1145 PM EDT...BETWEEN 2.5 AND 3.5 INCHES OF RAIN HAS FALLEN
NEAR THE TUCKAHOE RIVER IN CAROLINE AND TALBOT COUNTIES. ADDITIONAL
RAINFALL AMOUNTS OF AROUND AN INCH OF RAIN ARE POSSIBLE IN
THE WARNED AREA.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
LAT...LON 3888 7616 3889 7612 3890 7610 3893 7601
3892 7600 3892 7596 3895 7595 3900 7574
3898 7573 3872 7572 3867 7616
TIME...MOT...LOC 0344Z 180DEG 0KT 3880 7636
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 8:28 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 62 min |
| Aug 25, 9:47 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 58 min |
| Aug 25, 11:54 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 66 min |
Nearby
Flash Flood Warnings in Maryland, 2007Every flash flood warning in 2007
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; radar from the NEXRAD Level II archive.