Alert archive / Pennsylvania / Areal Flood Advisories in 2013

Areal Flood Advisory 68, NWS Philadelphia/Mount Holly

June 28, 2013Lehigh County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jun 28, 2013, 7:32 PM EDT for Lehigh County, Northampton County, Pennsylvania. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 28, 2013, 7:32 PM EDT (23:32 UTC)
Expired
Jun 28, 2013, 10:30 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Lehigh County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 120 km from the middle of the area, began a volume at 23:32 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 11.5 hours before the alert went out and 255 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, Washington/Dulle, VA at 12:00Z on 2013-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 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, Washington/Dulle, VA at 12:00Z on 2013-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.193958Sfc1 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
34 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
1246 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood advisory went out at Jun 28, 7:09 PM EDT, 23 minutes earlier.

Area forecast discussion, Jun 28, 7:09 PM EDT, 23 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jun 28, 3:51 PM EDT, 3 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
351 PM EDT FRI JUN 28 2013

NJZ001-007>010-012-PAZ054-055-062-292000-
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-CARBON-MONROE-
NORTHAMPTON-
351 PM EDT FRI JUN 28 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW
JERSEY...NORTHWEST NEW JERSEY...EAST CENTRAL PENNSYLVANIA AND
NORTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SOME SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING MAY
PRODUCE STRONG WINDS AND HEAVY RAIN.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SHOWERS AND THUNDERSTORMS ARE POSSIBLE FROM SUNDAY THROUGH MUCH
OF NEXT WEEK, WHICH COULD CONTAIN GUSTY WINDS AND HEAVY RAIN. THE
POTENTIAL FOR FLOOD PRODUCING RAINS IS GREATEST IN THE SUNDAY TO
TUESDAY TIMEFRAME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ001>003-MDZ008-012-015-019-020-NJZ013-015>023-027-PAZ060-061-070-
071-101>106-292000-
NEW CASTLE-KENT-INLAND SUSSEX-CECIL-KENT MD-QUEEN ANNES-TALBOT-
CAROLINE-WESTERN MONMOUTH-MERCER-SALEM-GLOUCESTER-CAMDEN-
NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-DELAWARE-PHILADELPHIA-
WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-
EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
351 PM EDT FRI JUN 28 2013

...SEVERE THUNDERSTORM WATCH 387 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...NORTHERN
DELAWARE...SOUTHERN DELAWARE...NORTHEAST MARYLAND...CENTRAL NEW
JERSEY...SOUTHERN NEW JERSEY...EAST CENTRAL PENNSYLVANIA AND
SOUTHEAST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SHOWERS AND THUNDERSTORMS ARE POSSIBLE FROM SUNDAY THROUGH MUCH
OF NEXT WEEK, WHICH COULD CONTAIN GUSTY WINDS AND HEAVY RAIN. THE
POTENTIAL FOR FLOOD PRODUCING RAINS IS GREATEST IN THE SUNDAY TO
TUESDAY TIMEFRAME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ004-NJZ014-024>026-292000-
DELAWARE BEACHES-EASTERN MONMOUTH-ATLANTIC COASTAL CAPE MAY-
COASTAL ATLANTIC-COASTAL OCEAN-
351 PM EDT FRI JUN 28 2013

...SEVERE THUNDERSTORM WATCH 387 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN DELAWARE...CENTRAL
NEW JERSEY AND SOUTHERN NEW JERSEY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

THERE IS A MODERATE RISK OF DANGEROUS RIP CURRENTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SHOWERS AND THUNDERSTORMS ARE POSSIBLE FROM SUNDAY THROUGH MUCH
OF NEXT WEEK, WHICH COULD CONTAIN GUSTY WINDS AND HEAVY RAIN. THE
POTENTIAL FOR FLOOD PRODUCING RAINS IS GREATEST IN THE SUNDAY TO
TUESDAY TIMEFRAME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ430-431-450>455-292000-
DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE-
COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM-
COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20 NM-
COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20 NM-
COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM-
COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM-
COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM-
351 PM EDT FRI JUN 28 2013

...SEVERE THUNDERSTORM WATCH 387 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS AND
DELAWARE BAY WATERS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THUNDERSTORMS WITH STRONG WIND GUSTS ARE POSSIBLE EACH AFTERNOON
OR EVENING FROM SUNDAY THROUGH MUCH OF NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jun 28, 4:47 PM EDT, 2 hours 45 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
447 PM EDT FRI JUN 28 2013

MDZ008-012-015-019-020-282200-
CAROLINE MD-CECIL MD-KENT MD-QUEEN ANNE'S MD-TALBOT MD-
447 PM EDT FRI JUN 28 2013

...STRONG THUNDERSTORMS WILL AFFECT CAROLINE...KENT...QUEEN
ANNE'S...SOUTHEASTERN CECIL AND TALBOT COUNTIES...

AT 444 PM EDT...STRONG THUNDERSTORMS WERE LOCATED ON THE WESTERN
SHORE OF THE CHESAPEAKE BAY...MOVING EAST AT AROUND 20 MPH. THESE
STORMS WILL CROSS THE BAY AND REACH THE EASTERN SHORE BY 5 PM.

WIND GUSTS TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS. INTENSE LIGHTNING CAN ALSO BE EXPECTED...ALONG WITH HEAVY
DOWNPOURS. DO NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER TREES WHEN
LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES.

LAT...LON 3887 7625 3881 7621 3883 7620 3894 7624
      3883 7638 3894 7637 3905 7631 3900 7621
      3917 7629 3932 7619 3943 7601 3954 7599
      3955 7578 3865 7571 3869 7589 3857 7604
      3873 7626 3867 7635 3877 7639

FORECASTER:JJM
Local storm report, Jun 28, 4:56 PM EDT, 2 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
456 PM EDT FRI JUN 28 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0444 PM     TSTM WND DMG     EAST GREENWICH TWP      39.79N  75.25W
06/28/2013                   GLOUCESTER         NJ   EMERGENCY MNGR

            A FEW TREES DOWN

&&

EVENT NUMBER PHI1300210

MWG
Local storm report, Jun 28, 4:57 PM EDT, 2 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
457 PM EDT FRI JUN 28 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0444 PM     TSTM WND DMG     GIBBSTOWN               39.82N  75.28W
06/28/2013                   GLOUCESTER         NJ   911 CALL CENTER

            TREE DOWN...POSSIBLY SEVERAL.

&&

EVENT NUMBER PHI1300211

MWG
Special weather statement, Jun 28, 6:04 PM EDT, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
604 PM EDT FRI JUN 28 2013

PAZ054-282300-
CARBON PA-
604 PM EDT FRI JUN 28 2013

...A STRONG THUNDERSTORM WILL AFFECT CARBON COUNTY...

AT 603 PM EDT...A STRONG THUNDERSTORM WAS NEAR TAMAQUA...MOVING
NORTHEAST AT 30 MPH.

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
EXPECT NUMEROUS CLOUD-TO-GROUND LIGHTNING STRIKES FROM THIS STORM.
DO NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER TREES WHEN LIGHTNING
THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. THIS STORM
WILL BE NEAR SUMMIT HILL AROUND 610 PM...NESQUEHONING AROUND 620
PM...JIM THORPE AROUND 630 PM...PENN FOREST RESERVOIR AROUND 640 PM
AND MECKESVILLE AROUND 650 PM.

LAT...LON 4099 7550 4095 7557 4083 7548 4080 7555
      4078 7568 4073 7576 4091 7600 4092 7600
      4100 7575 4102 7574 4105 7578 4110 7576
      4114 7569 4114 7566

FORECASTER: JJM
Special weather statement, Jun 28, 6:13 PM EDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
613 PM EDT FRI JUN 28 2013

NJZ020-026-282315-
COASTAL OCEAN NJ-OCEAN NJ-
613 PM EDT FRI JUN 28 2013

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN OCEAN COUNTY...

AT 609 PM EDT...A STRONG THUNDERSTORM WAS NEAR PRESIDENTIAL LAKES...
MOVING NORTHEAST AT 35 MPH.

WIND GUSTS TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS STORM.
EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT STAY IN THE OPEN NOR
SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN
A THUNDERSTORM APPROACHES. VERY HEAVY RAIN WILL FALL FROM THIS
STORM...AND WILL CAUSE WATER TO POND ON ROADS AND FILL POOR DRAINAGE
AREAS. THE RAIN WILL CAUSE RAPID RISES ON SMALL STREAMS AND CREEKS.
THIS STORM WILL BE NEAR CEDAR GLEN LAKES AROUND 620 PM...LEISURE
KNOLL AROUND 630 PM...LEISURE VILLAGE AROUND 640 PM AND POINT
PLEASANT BEACH AROUND 650 PM.

LAT...LON 3988 7413 3984 7442 4006 7455 4017 7439
      4016 7426 4011 7424 4010 7415 4013 7411
      4013 7409 4011 7409 4009 7407 4011 7403
      4006 7402

FORECASTER:JJM
Local storm report, Jun 28, 6:52 PM EDT, 40 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
652 PM EDT FRI JUN 28 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0400 PM     TSTM WND DMG     HOCKESSIN               39.78N  75.69W
06/28/2013                   NEW CASTLE         DE   TRAINED SPOTTER

            NUMEROUS TREES DOWN

0423 PM     TSTM WND DMG     WILMINGTON              39.73N  75.53W
06/28/2013                   NEW CASTLE         DE   PUBLIC

            TREES DOWN ON BRACKENVILLE RD

0444 PM     TSTM WND DMG     EAST GREENWICH TWP      39.79N  75.25W
06/28/2013                   GLOUCESTER         NJ   911 CALL CENTER

            A FEW TREES DOWN

0444 PM     TSTM WND DMG     GIBBSTOWN               39.82N  75.28W
06/28/2013                   GLOUCESTER         NJ   911 CALL CENTER

            TREES REPORTED DOWN.

0515 PM     TSTM WND DMG     STRATFORD               39.83N  75.02W
06/28/2013                   CAMDEN             NJ   911 CALL CENTER

            TREES AND WIRES DOWN.

0530 PM     FLASH FLOOD      NEWARK                  39.68N  75.76W
06/28/2013                   NEW CASTLE         DE   TRAINED SPOTTER

            FLOODING ON ROUTES 2 AND 7. WATER RESCUE IN PROGRESS.

0530 PM     FLASH FLOOD      OAKLYN                  39.90N  75.08W
06/28/2013                   CAMDEN             NJ   PUBLIC

            STREET FLOODING. IN PROGRESS.

0530 PM     FLASH FLOOD      CHRISTIANA              39.67N  75.66W
06/28/2013                   NEW CASTLE         DE   PUBLIC

            FLOODING ALONG PARTS OF ROUTE 1 AND INTERSTATE 95.

0541 PM     FLASH FLOOD      BAY VIEW                39.64N  75.96W
06/28/2013                   CECIL              MD   PUBLIC

            SEVERAL REPORTS OF ROUTE 274 FLOODED OVER.

&&

EVENT NUMBER PHI1300214 PHI1300216 PHI1300210 PHI1300211 PHI1300213
PHI1300215 PHI1300217 PHI1300218 PHI1300212

GAINES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 8:04 PM EDTFlash Flood WarningPHIHunterdon, Mercer, Somerset4 hr
Jun 27, 8:06 PM EDTSpecial Weather StatementPHIAtlantic, Burlington, Ocean54 min
Jun 27, 8:18 PM EDTSpecial Weather StatementPHIMercer, Middlesex, Morris, Somerset, Sussex, Warren72 min
Jun 27, 10:00 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more3 hr
Jun 27, 10:48 PM EDTAreal Flood WarningPHISomerset4 hr
Jun 28, 1:01 AM EDTAreal Flood AdvisoryPHIMercer, Somerset5 hr
Jun 28, 4:23 PM EDTSpecial Weather StatementPHICamden, Gloucester52 min
Jun 28, 4:46 PM EDTSpecial Marine WarningPHI44 min
Jun 28, 4:55 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester65 min
Jun 28, 5:49 PM EDTFlash Flood WarningPHICamden, Gloucester, Salem4 hr
Jun 28, 5:57 PM EDTSevere Thunderstorm WarningPHIBurlington48 min
Jun 28, 6:13 PM EDTSpecial Weather StatementPHIOcean62 min
Jun 27, 8:50 PM EDTAreal Flood AdvisoryPHICarbon3 hr
Jun 27, 10:04 PM EDTRiver Flood WarningPHIChester6 hr
Jun 28, 3:19 PM EDTSevere Thunderstorm WarningPHIChester41 min
Jun 28, 3:33 PM EDTAreal Flood AdvisoryPHIChester, Delaware117 min
Jun 28, 6:04 PM EDTSpecial Weather StatementPHICarbon56 min
Jun 28, 6:21 PM EDTFlash Flood WarningPHICarbon4 hr
Jun 28, 6:43 PM EDTFlash Flood WarningPHIMonroe4 hr
Jun 28, 4:20 PM EDTSevere Thunderstorm WarningPHINew Castle55 min
Jun 28, 4:27 PM EDTTornado WarningPHINew Castle33 min
Jun 28, 5:09 PM EDTFlash Flood WarningPHINew Castle11 hr
Jun 28, 6:09 PM EDTSevere Thunderstorm WarningPHISussex96 min
Jun 28, 6:48 PM EDTRiver Flood WarningPHINew Castle9 hr
Jun 28, 6:48 PM EDTRiver Flood WarningPHINew Castle8 hr

Nearby

Areal Flood Advisories in Pennsylvania, 2013Every areal flood advisory 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.