Alert archive / Maryland / Flash Flood Watches in 2016
Flash Flood Watch 6, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood watch at Oct 8, 2016, 9:33 AM EDT for Caroline County, Queen Anne's County, Talbot County, Maryland; Kent County, Sussex County, Delaware. It took effect at Oct 8, 2016, 6:00 PM EDT. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Oct 8, 2016, 9:33 AM EDT (13:33 UTC)
- In effect from
- Oct 8, 2016, 6:00 PM EDT
- Expired
- Oct 9, 2016, 12:00 PM EDT
- In force
- 18 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties Kent County, DE, Sussex County, DE, Caroline County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 31 km from the middle of the area, began a volume at 13:35 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 12:00Z, 1.6 hours before the alert went out and 112 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
- 41 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 810 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
913 WGUS61 KPHI 081333 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 933 AM EDT SAT OCT 8 2016 DEZ002>004-MDZ015-019-020-082145- /O.NEW.KPHI.FF.A.0006.161008T2200Z-161009T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KENT-INLAND SUSSEX-DELAWARE BEACHES-QUEEN ANNES-TALBOT-CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH... CENTREVILLE...EASTON...DENTON 933 AM EDT SAT OCT 8 2016 ...FLASH FLOOD WATCH IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH SUNDAY MORNING... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF DELAWARE AND NORTHEAST MARYLAND...INCLUDING THE FOLLOWING AREAS...IN DELAWARE... DELAWARE BEACHES...INLAND SUSSEX AND KENT. IN NORTHEAST MARYLAND...CAROLINE...QUEEN ANNES AND TALBOT. * FROM 6 PM EDT THIS EVENING THROUGH SUNDAY MORNING * RAIN WILL DEVELOP FROM SOUTH TO NORTH THROUGHOUT THE DAY AND BECOME TO MODERATE TO HEAVY AT TIMES TONIGHT. AN EXCESSIVE AMOUNT OF RAIN FELL ABOUT A WEEK AGO IN THESE SPOTS LEADING TO AN INCREASED POTENTIAL FOR FLASH FLOODING WITH ANY EXCESSIVE RAINFALL TONIGHT AND SUNDAY MORNING. RAINFALL TOTALS FROM 2-4 INCHES ARE EXPECTED IN THE WATCH AREA WITH THE HIGHEST AMOUNTS IN SUSSEX COUNTY DELAWARE. A VERY TIGHT CUTOFF WILL BE PRESENT BETWEEN AREAS THAT SEE THE HEAVY RAINFALL AND THOSE WHO SEE LITTLE IN THE WAY OF RAINFALL ON THE NORTH AND WEST EDGES OF THE WATCH AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. BASEMENT FLOODING IS POSSIBLE DUE TO HEAVY RAIN FALLING ON SOILS ALREADY SATURATED FROM PREVIOUS STORMS. IF YOUR HOME HAS A HISTORY OF BASEMENT FLOODING, MONITOR YOUR SUMP PUMP FOR PROPER OPERATION AND IF POSSIBLE, DIRECT OUTSIDE WATER FLOW AWAY FROM YOUR HOUSE && $$ GAINES
4 follow-up statements
924 WGUS61 KPHI 081940 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 340 PM EDT SAT OCT 8 2016 DEZ002>004-MDZ015-019-020-090345- /O.CON.KPHI.FF.A.0006.161008T2200Z-161009T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KENT-INLAND SUSSEX-DELAWARE BEACHES-QUEEN ANNES-TALBOT-CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH... CENTREVILLE...EASTON...DENTON 340 PM EDT SAT OCT 8 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF DELAWARE AND NORTHEAST MARYLAND...INCLUDING THE FOLLOWING AREAS...IN DELAWARE...DELAWARE BEACHES...INLAND SUSSEX AND KENT. IN NORTHEAST MARYLAND...CAROLINE...QUEEN ANNES AND TALBOT. * THROUGH SUNDAY MORNING * RAIN WILL BECOME TO MODERATE TO HEAVY AT TIMES TONIGHT. AN EXCESSIVE AMOUNT OF RAIN FELL ABOUT A WEEK AGO IN THESE SPOTS. THIS WILL ALLOW FOR AN INCREASED POTENTIAL FOR FLASH FLOODING WITH ANY EXCESSIVE RAINFALL TONIGHT AND SUNDAY MORNING. RAINFALL TOTALS FROM 1-4 INCHES ARE EXPECTED IN THE WATCH AREA WITH THE HIGHEST AMOUNTS IN SUSSEX COUNTY DELAWARE. A VERY TIGHT CUTOFF WILL BE PRESENT BETWEEN AREAS THAT SEE THE HEAVY RAINFALL AND THOSE WHO SEE LITTLE IN THE WAY OF RAINFALL ON THE NORTH AND WEST EDGES OF THE WATCH AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. BASEMENT FLOODING IS POSSIBLE DUE TO HEAVY RAIN FALLING ON SOILS ALREADY SATURATED FROM PREVIOUS STORMS. IF YOUR HOME HAS A HISTORY OF BASEMENT FLOODING... MONITOR YOUR SUMP PUMP FOR PROPER OPERATION AND IF POSSIBLE... DIRECT OUTSIDE WATER FLOW AWAY FROM YOUR HOUSE && $$ GAINES
246 WGUS61 KPHI 081942 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 342 PM EDT SAT OCT 8 2016 DEZ002>004-MDZ015-019-020-090815- /O.CON.KPHI.FF.A.0006.161008T2200Z-161009T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KENT-INLAND SUSSEX-DELAWARE BEACHES-QUEEN ANNES-TALBOT-CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH... CENTREVILLE...EASTON...DENTON 342 PM EDT SAT OCT 8 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF DELAWARE AND NORTHEAST MARYLAND...INCLUDING THE FOLLOWING AREAS...IN DELAWARE...DELAWARE BEACHES...INLAND SUSSEX AND KENT. IN NORTHEAST MARYLAND...CAROLINE...QUEEN ANNES AND TALBOT. * THROUGH SUNDAY MORNING * RAIN WILL BECOME TO MODERATE TO HEAVY AT TIMES TONIGHT. AN EXCESSIVE AMOUNT OF RAIN FELL ABOUT A WEEK AGO IN THESE SPOTS. THIS WILL ALLOW FOR AN INCREASED POTENTIAL FOR FLASH FLOODING WITH ANY EXCESSIVE RAINFALL TONIGHT AND SUNDAY MORNING. RAINFALL TOTALS FROM 1-4 INCHES ARE EXPECTED IN THE WATCH AREA WITH THE HIGHEST AMOUNTS IN SUSSEX COUNTY DELAWARE. A VERY TIGHT CUTOFF WILL BE PRESENT BETWEEN AREAS THAT SEE THE HEAVY RAINFALL AND THOSE WHO SEE LITTLE IN THE WAY OF RAINFALL ON THE NORTH AND WEST EDGES OF THE WATCH AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. BASEMENT FLOODING IS POSSIBLE DUE TO HEAVY RAIN FALLING ON SOILS ALREADY SATURATED FROM PREVIOUS STORMS. IF YOUR HOME HAS A HISTORY OF BASEMENT FLOODING... MONITOR YOUR SUMP PUMP FOR PROPER OPERATION AND IF POSSIBLE... DIRECT OUTSIDE WATER FLOW AWAY FROM YOUR HOUSE && $$ GAINES
829 WGUS61 KPHI 090742 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 342 AM EDT SUN OCT 9 2016 DEZ002>004-MDZ015-019-020-091600- /O.CON.KPHI.FF.A.0006.000000T0000Z-161009T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KENT-INLAND SUSSEX-DELAWARE BEACHES-QUEEN ANNES-TALBOT-CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH... CENTREVILLE...EASTON...DENTON 342 AM EDT SUN OCT 9 2016 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL NOON EDT TODAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF DELAWARE AND NORTHEAST MARYLAND...INCLUDING THE FOLLOWING AREAS...IN DELAWARE...DELAWARE BEACHES...INLAND SUSSEX AND KENT. IN NORTHEAST MARYLAND...CAROLINE...QUEEN ANNES AND TALBOT. * UNTIL NOON EDT TODAY. * RAIN WILL CONTINUE THIS MORNING, POSSIBLY HEAVY AT TIMES, THEN TAPER OFF THIS AFTERNOON. AN EXCESSIVE AMOUNT OF RAIN FELL ABOUT A WEEK AGO IN SOME AREAS WITHIN THE WATCH. THE COMBINATION OF A WET GROUND AND HEAVY RAIN COULD LEAD TO LOCAL FLOODING OR FLASH FLOODING. DURING TIMES OF HEAVIER RAIN, SOME FLOODING OF POOR DRAINAGE AREAS CAN OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
566 WGUS61 KPHI 091546 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1146 AM EDT SUN OCT 9 2016 DEZ002>004-MDZ015-019-020-091700- /O.EXP.KPHI.FF.A.0006.000000T0000Z-161009T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KENT-INLAND SUSSEX-DELAWARE BEACHES-QUEEN ANNES-TALBOT-CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH... CENTREVILLE...EASTON...DENTON 1146 AM EDT SUN OCT 9 2016 ...FLASH FLOOD WATCH WILL EXPIRE AT NOON EDT TODAY... THE FLASH FLOOD WATCH FOR PORTIONS OF DELAWARE AND NORTHEAST MARYLAND WILL EXPIRE AT NOON EDT TODAY. RAINFALL AMOUNTS RANGED FROM 2 TO 4 INCHES ACROSS THE WATCH AREA. SOME PONDING OF WATER ON ROADWAYS AND POOR DRAINAGE FLOODING CONCERNS COULD LINGER INTO THE AFTERNOON IN A FEW SPOTS. HOWEVER, RAINFALL IS CURRENTLY ENDING OVER THE WATCH AREA AND FLASH FLOODING IS NOT ANTICIPATED. $$ GAINES
Nearby
Flash Flood Watches in Maryland, 2016Flash Flood Watches in Delaware, 2016Every flash flood watch in 2016
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.