Alert archive / Maryland / Flash Flood Warnings in 2014
Flash Flood Warning 25, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 3, 2014, 11:47 PM EDT for Caroline County, Talbot County, Maryland. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 3, 2014, 11:47 PM EDT (03:47 UTC)
- Expired
- Jul 4, 2014, 3:45 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Caroline County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 52 km from the middle of the area, began a volume at 03:51 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 95 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
- 1466 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 907 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
405
WGUS51 KPHI 040347
FFWPHI
MDC011-041-040745-
/O.NEW.KPHI.FF.W.0025.140704T0347Z-140704T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1147 PM EDT THU JUL 3 2014
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN CAROLINE COUNTY IN EASTERN MARYLAND...
SOUTHEASTERN TALBOT COUNTY IN EASTERN MARYLAND...
* UNTIL 345 AM EDT
* AT 1144 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THREE TO FOUR INCHES HAS FALLEN ACROSS THE AREA ALREADY TONIGHT
AND THUNDERSTORMS CONTINUE ACROSS THE AREA. AN ADDITIONAL ONE TO
TWO INCHES IS POSSIBLE IN THE NEXT HOUR OR TWO AND WILL LEAD TO
SOME FLOODING ACROSS THE AREA.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PRESTON...
WINDYHILL...TRAPPE...TANYARD...HAMBLETON AND CHOPTANK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
&&
LAT...LON 3860 7608 3859 7612 3861 7614 3881 7599
3875 7582 3870 7586 3869 7589 3867 7594
3863 7597 3860 7598 3857 7602 3857 7604
$$
ROBERTSON2 follow-up statements
212
WGUS71 KPHI 040505
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
105 AM EDT FRI JUL 4 2014
MDC011-041-040745-
/O.CON.KPHI.FF.W.0025.000000T0000Z-140704T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAROLINE MD-TALBOT MD-
105 AM EDT FRI JUL 4 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 AM EDT FOR
SOUTHEASTERN TALBOT AND SOUTHWESTERN CAROLINE COUNTIES...
AT 1256 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING HEAVY RAINFALL OVER THE WARNED
AREA. OVER FOUR TO SIX INCHES HAS FALLEN OVER THE LAST SEVERAL HOURS
WITH MORE RAINFALL EXPECTED OVER THE NEXT HOUR OR TWO.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PRESTON...
WINDYHILL...TRAPPE...TANYARD...HAMBLETON AND CHOPTANK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 3860 7608 3859 7612 3861 7614 3881 7599
3875 7582 3870 7586 3869 7589 3867 7594
3863 7597 3860 7598 3857 7602 3857 7604
$$
ROBERTSON029
WGUS71 KPHI 040715
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
315 AM EDT FRI JUL 4 2014
MDC011-041-040724-
/O.CAN.KPHI.FF.W.0025.000000T0000Z-140704T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAROLINE MD-TALBOT MD-
315 AM EDT FRI JUL 4 2014
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHEASTERN TALBOT
AND SOUTHWESTERN CAROLINE COUNTIES...
THE HEAVY RAIN THAT PROMPTED THE WARNING HAS LEFT THE AREA AND ANY
AREAS OF HIGH WATER WILL CONTINUE TO RECEDED. THEREFORE THE FLASH
FLOOD WARNING HAS BEEN CANCELLED.
LAT...LON 3860 7608 3859 7612 3861 7614 3881 7599
3875 7582 3870 7586 3869 7589 3867 7594
3863 7597 3860 7598 3857 7602 3857 7604
$$
ROBERTSONThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 9:29 PM EDT | Special Weather Statement | PHI | Caroline | 61 min |
| Jul 3, 10:00 PM EDT | Areal Flood Advisory | PHI | Caroline, Talbot | 4 hr |
| Jul 4, 1:30 AM EDT | Areal Flood Advisory | PHI | Talbot | 4 hr |
| Jul 4, 5:04 AM EDT | Special Weather Statement | PHI | Caroline, Talbot | 56 min |
Nearby
Flash Flood Warnings in Maryland, 2014Every flash flood warning in 2014
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.