Alert archive / New Jersey / Flash Flood Watches in 2013
Flash Flood Watch 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood watch at Jul 12, 2013, 4:08 AM EDT for 4 states. It took effect at Jul 12, 2013, 8:00 AM EDT. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2013, 4:08 AM EDT (08:08 UTC)
- In effect from
- Jul 12, 2013, 8:00 AM EDT
- Expired
- Jul 12, 2013, 9:37 PM EDT
- In force
- 14 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Flood severity
- None
Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Cecil County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD, Atlantic County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Dover AFB radar (KDOX), 68 km from the middle of the area, began a volume at 08:10 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, 8.1 hours before the alert went out and 168 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
- 171 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 713 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
151 WGUS61 KPHI 120808 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 408 AM EDT FRI JUL 12 2013 DEZ001-MDZ008-NJZ016>018-PAZ070-071-101-102-104-122000- /O.NEW.KPHI.FF.A.0005.130712T1200Z-130713T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-SALEM-GLOUCESTER-CAMDEN-DELAWARE-PHILADELPHIA- WESTERN CHESTER-EASTERN CHESTER-EASTERN MONTGOMERY- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...PENNSVILLE... GLASSBORO...CAMDEN...CHERRY HILL...MEDIA...PHILADELPHIA... HONEY BROOK...OXFORD...WEST CHESTER...KENNET SQUARE... NORRISTOWN...LANSDALE 408 AM EDT FRI JUL 12 2013 ...FLASH FLOOD WATCH IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH LATE TONIGHT... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN DELAWARE... NORTHEAST MARYLAND...SOUTHERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN DELAWARE...NEW CASTLE. IN NORTHEAST MARYLAND...CECIL. IN SOUTHERN NEW JERSEY...CAMDEN...GLOUCESTER AND SALEM. IN SOUTHEAST PENNSYLVANIA...DELAWARE...EASTERN CHESTER...EASTERN MONTGOMERY...PHILADELPHIA AND WESTERN CHESTER. * FROM 8 AM EDT THIS MORNING THROUGH LATE TONIGHT * A STRONG WARM FRONT ORGANIZING ACROSS THE DELMARVA HAS ALREADY CAUSED CONSIDERABLE FLASH FLOODING NEAR WASHINGTON DC EARLY THIS MORNING. POTENTIAL EXISTS FOR NEW BANDS OF EXCESSIVE RAIN PRODUCING SHOWERS AND EMBEDDED THUNDERSTORMS TO DEVELOP FROM CHESAPEAKE BAY NORTHEASTWARD ONTO THE URBAN INTERSTATE 95 CORRIDOR OF NORTHEAST MARYLAND TO WILMINGTON AND PHILADELPHIA...LATE THIS MORNING OR THIS AFTERNOON. * ANY SHOWERS WILL BE SLOW MOVING AND BE CAPABLE OF PRODUCING 1 TO 2 INCHES OF RAIN IN AN HOURS TIME. * TIMING...THE MOST LIKELY TIME FOR ANY FLOODING IS THIS AFTERNOON INTO THE EARLY EVENING. 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. && $$ DRAG
4 follow-up statements
347 WGUS61 KPHI 121342 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 942 AM EDT FRI JUL 12 2013 DEZ001-MDZ008-NJZ016>018-PAZ070-071-101-102-104-122145- /O.CON.KPHI.FF.A.0005.000000T0000Z-130713T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-SALEM-GLOUCESTER-CAMDEN-DELAWARE-PHILADELPHIA- WESTERN CHESTER-EASTERN CHESTER-EASTERN MONTGOMERY- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...PENNSVILLE... GLASSBORO...CAMDEN...CHERRY HILL...MEDIA...PHILADELPHIA... HONEY BROOK...OXFORD...WEST CHESTER...KENNET SQUARE... NORRISTOWN...LANSDALE 942 AM EDT FRI JUL 12 2013 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * NEW CASTLE COUNTY IN DELAWARE...CECIL COUNTY IN MARYLAND...THE NEW JERSEY COUNTIES OF CAMDEN...GLOUCESTER AND SALEM...AND THE PENNSYLVANIA COUNTIES OF CHESTER...DELAWARE...PHILADELPHIA AND EASTERN MONTGOMERY. * THROUGH LATE TONIGHT * A SLOW MOVING FRONTAL BOUNDARY HAS ALREADY BROUGHT MODERATE TO HEAVY RAINFALL TO MUCH OF SOUTHERN AND CENTRAL DELAWARE AND ADJACENT AREAS OF NORTHEASTERN MARYLAND THIS MORNING. THE AREA OF MODERATE TO HEAVY RAIN IS EXPECTED TO EXPAND SLOWLY NORTHWARD THROUGH THE DAY. * RAINFALL TOTALS OF 1 TO 3 INCHES ARE POSSIBLE IN THE WATCH AREA WITH THE POTENTIAL FOR LOCALLY HIGHER AMOUNTS. THE HEAVIEST OF THE RAIN MAY FALL IN A RELATIVELY SHORT AMOUNT OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ IOVINO
501 WGUS61 KPHI 121454 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1054 AM EDT FRI JUL 12 2013 DEZ002>004-MDZ012-015-019-020-122300- /O.EXA.KPHI.FF.A.0005.000000T0000Z-130713T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT- CAROLINE- INCLUDING THE CITIES OF...DOVER...GEORGETOWN...REHOBOTH BEACH... CHESTERTOWN...CENTREVILLE...EASTON...DENTON 1054 AM EDT FRI JUL 12 2013 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS EXPANDED THE * FLASH FLOOD WATCH TO INCLUDE PORTIONS OF DELAWARE AND NORTHEAST MARYLAND...INCLUDING THE FOLLOWING AREAS...IN DELAWARE...DELAWARE BEACHES...INLAND SUSSEX AND KENT. IN NORTHEAST MARYLAND...CAROLINE...KENT MD...QUEEN ANNES AND TALBOT. * THROUGH LATE TONIGHT * A SLOW MOVING FRONTAL BOUNDARY HAS ALREADY BROUGHT MODERATE TO HEAVY RAINFALL TO MUCH OF SOUTHERN AND CENTRAL DELAWARE AND ADJACENT AREAS OF NORTHEASTERN MARYLAND THIS MORNING. THE AREA OF MODERATE TO HEAVY RAIN IS EXPECTED TO EXPAND SLOWLY NORTHWARD THROUGH THE DAY. * RAINFALL TOTALS OF 1 TO 3 INCHES ARE POSSIBLE IN THE WATCH AREA WITH THE POTENTIAL FOR LOCALLY HIGHER AMOUNTS. THE HEAVIEST OF THE RAIN MAY FALL IN A RELATIVELY SHORT AMOUNT OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ DEZ001-MDZ008-NJZ016>018-PAZ070-071-101-102-104-122300- /O.CON.KPHI.FF.A.0005.000000T0000Z-130713T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-CECIL-SALEM-GLOUCESTER-CAMDEN-DELAWARE-PHILADELPHIA- WESTERN CHESTER-EASTERN CHESTER-EASTERN MONTGOMERY- INCLUDING THE CITIES OF...WILMINGTON...ELKTON...PENNSVILLE... GLASSBORO...CAMDEN...CHERRY HILL...MEDIA...PHILADELPHIA... HONEY BROOK...OXFORD...WEST CHESTER...KENNET SQUARE... NORRISTOWN...LANSDALE 1054 AM EDT FRI JUL 12 2013 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF NORTHERN DELAWARE...NORTHEAST MARYLAND...SOUTHERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN NORTHERN DELAWARE...NEW CASTLE. IN NORTHEAST MARYLAND...CECIL. IN SOUTHERN NEW JERSEY...CAMDEN... GLOUCESTER AND SALEM. IN SOUTHEAST PENNSYLVANIA...DELAWARE... EASTERN CHESTER...EASTERN MONTGOMERY...PHILADELPHIA AND WESTERN CHESTER. * THROUGH LATE TONIGHT * A SLOW MOVING FRONTAL BOUNDARY HAS ALREADY BROUGHT MODERATE TO HEAVY RAINFALL TO MUCH OF SOUTHERN AND CENTRAL DELAWARE AND ADJACENT AREAS OF NORTHEASTERN MARYLAND THIS MORNING. THE AREA OF MODERATE TO HEAVY RAIN IS EXPECTED TO EXPAND SLOWLY NORTHWARD THROUGH THE DAY. * RAINFALL TOTALS OF 1 TO 3 INCHES ARE POSSIBLE IN THE WATCH AREA WITH THE POTENTIAL FOR LOCALLY HIGHER AMOUNTS. THE HEAVIEST OF THE RAIN MAY FALL IN A RELATIVELY SHORT AMOUNT OF TIME. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ KRUZDLO
762 WGUS61 KPHI 121842 FFAPHI URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 242 PM EDT FRI JUL 12 2013 NJZ021>025-130600- /O.EXA.KPHI.FF.A.0005.000000T0000Z-130713T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CUMBERLAND-ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY- COASTAL ATLANTIC- INCLUDING THE CITIES OF...MILLVILLE...HAMMONTON... CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY 242 PM EDT FRI JUL 12 2013 ...FLASH FLOOD WATCH IN EFFECT UNTIL 2 AM EDT SATURDAY... THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS EXPANDED THE * FLASH FLOOD WATCH TO INCLUDE A PORTION OF SOUTHERN NEW JERSEY...INCLUDING THE FOLLOWING AREAS...ATLANTIC...ATLANTIC COASTAL CAPE MAY...CAPE MAY...COASTAL ATLANTIC AND CUMBERLAND. * UNTIL 2 AM EDT SATURDAY. * A SLOW MOVING FRONTAL BOUNDARY WILL HELP FOCUS AREAS OF VERY HEAVY RAIN ACROSS THE REGION THROUGH THIS EVENING. * RAINFALL TOTALS OF 1 TO 3 INCHES ARE EXPECTED IN THE WATCH AREA WITH LOCALLY HIGHER AMOUNTS. SOME OF THE RAIN WILL FALL IN A SHORT PERIOD OF TIME, LEADING TO THE POTENTIAL FOR FLASH FLOODING. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ DEZ001>004-MDZ008-012-015-019-020-NJZ016>018-PAZ070-071-101-102- 104-130600- /O.CON.KPHI.FF.A.0005.000000T0000Z-130713T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN-DELAWARE- PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-EASTERN MONTGOMERY- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON... DENTON...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MEDIA... PHILADELPHIA...HONEY BROOK...OXFORD...WEST CHESTER... KENNET SQUARE...NORRISTOWN...LANSDALE 242 PM EDT FRI JUL 12 2013 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF DELAWARE...NORTHEAST MARYLAND...SOUTHERN NEW JERSEY AND SOUTHEAST PENNSYLVANIA...INCLUDING THE FOLLOWING AREAS...IN DELAWARE...DELAWARE BEACHES...INLAND SUSSEX...KENT AND NEW CASTLE. IN NORTHEAST MARYLAND...CAROLINE...CECIL... KENT MD...QUEEN ANNES AND TALBOT. IN SOUTHERN NEW JERSEY... CAMDEN...GLOUCESTER AND SALEM. IN SOUTHEAST PENNSYLVANIA... DELAWARE...EASTERN CHESTER...EASTERN MONTGOMERY...PHILADELPHIA AND WESTERN CHESTER. * UNTIL 2 AM EDT SATURDAY. * A SLOW MOVING FRONTAL BOUNDARY HAS ALREADY PRODUCED VERY HEAVY RAINFALL IN MUCH OF DELAWARE, PORTIONS OF FAR SOUTHEASTERN PENNSYLVANIA AND NORTHEASTERN MARYLAND. THE AREA OF MODERATE TO VERY HEAVY RAIN IS EXPECTED TO CONTINUE EXPANDING SLOWLY NORTHWARD THROUGH THIS EVENING. * RAINFALL TOTALS OF 1 TO 3 INCHES ARE EXPECTED WITH LOCALLY HIGHER AMOUNTS. SOME OF THE RAIN WILL FALL IN A SHORT PERIOD OF TIME, LEADING TO THE POTENTIAL FOR FLASH FLOODING. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ KRUZDLO/GORSE
542 WGUS61 KPHI 130137 FFAPHI FLOOD WATCH NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 937 PM EDT FRI JUL 12 2013 DEZ001>004-MDZ008-012-015-019-020-NJZ016>018-021>025-PAZ070-071- 101-102-104-130245- /O.CAN.KPHI.FF.A.0005.000000T0000Z-130713T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN-CUMBERLAND- ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC- DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER- EASTERN MONTGOMERY- INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN... REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON... DENTON...PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL... MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...OCEAN CITY... ATLANTIC CITY...MEDIA...PHILADELPHIA...HONEY BROOK...OXFORD... WEST CHESTER...KENNET SQUARE...NORRISTOWN...LANSDALE 937 PM EDT FRI JUL 12 2013 ...FLASH FLOOD WATCH IS CANCELLED... THE THREAT FOR WIDESPREAD HEAVY RAIN HAS ENDED, THEREFORE THE FLASH FLOOD WATCH HAS BEEN CANCELLED. $$
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 3:45 AM EDT | Small Craft Advisory | PHI | 25 hr | |
| Jul 12, 2:29 PM EDT | Areal Flood Advisory | PHI | Cape May | 6 hr |
| Jul 12, 4:00 PM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland, Salem | 7 hr |
| Jul 12, 4:04 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 2 more | 4 hr |
| Jul 12, 4:23 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth, Somerset | 4 hr |
| Jul 12, 4:47 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 4 hr |
| Jul 12, 5:54 PM EDT | Special Weather Statement | PHI | Atlantic, Camden | 66 min |
| Jul 12, 6:54 PM EDT | Special Weather Statement | PHI | Atlantic, Camden | 66 min |
| Jul 12, 7:57 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Gloucester, Ocean | 63 min |
| Jul 12, 9:13 AM EDT | Areal Flood Advisory | PHI | Chester, Delaware, Montgomery | 4 hr |
| Jul 12, 10:01 AM EDT | Flash Flood Warning | PHI | Delaware | 4 hr |
| Jul 12, 10:49 AM EDT | Areal Flood Advisory | PHI | Chester | 4 hr |
| Jul 12, 7:21 AM EDT | Areal Flood Advisory | PHI | Sussex | 10 hr |
| Jul 12, 9:20 AM EDT | Areal Flood Advisory | PHI | Kent, Sussex | 8 hr |
| Jul 12, 12:15 PM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 14 hr |
| Jul 12, 1:18 PM EDT | Flash Flood Warning | PHI | Kent | 4 hr |
| Jul 12, 1:24 PM EDT | Flash Flood Warning | PHI | Sussex | 4 hr |
| Jul 12, 1:33 PM EDT | Flash Flood Warning | PHI | Sussex | 4 hr |
| Jul 12, 5:18 PM EDT | Areal Flood Advisory | PHI | Sussex | 4 hr |
| Jul 12, 3:51 AM EDT | Special Weather Statement | PHI | Anne Arundel | 39 min |
| Jul 12, 4:27 AM EDT | Special Weather Statement | PHI | Anne Arundel | 33 min |
| Jul 12, 4:58 AM EDT | Flash Flood Warning | PHI | Queen Anne's | 4 hr |
| Jul 12, 5:41 AM EDT | Areal Flood Advisory | PHI | Kent, Queen Anne's, Talbot | 8 hr |
| Jul 12, 7:15 AM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 10 hr |
| Jul 12, 8:17 AM EDT | Special Weather Statement | PHI | Queen Anne's | 43 min |
| Jul 12, 8:55 AM EDT | Flash Flood Warning | PHI | Caroline, Talbot | 4 hr |
| Jul 12, 9:02 AM EDT | Areal Flood Advisory | PHI | Queen Anne's | 4 hr |
| Jul 12, 1:28 PM EDT | Areal Flood Advisory | PHI | Kent, Queen Anne's, Talbot | 4 hr |
Nearby
Flash Flood Watches in New Jersey, 2013Flash Flood Watches in Maryland, 2013Flash Flood Watches in Pennsylvania, 2013Every flash flood watch in 2013
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.