Alert archive / Pennsylvania / Areal Flood Warnings in 2011

Areal Flood Warning 10, NWS Philadelphia/Mount Holly

March 10, 20114 states

NWS Philadelphia/Mount Holly issued this areal flood warning at Mar 10, 2011, 4:36 PM EST for 4 states. It was in force for 37 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
Mar 10, 2011, 4:36 PM EST (21:36 UTC)
Expired
Mar 12, 2011, 5:40 AM EST
In force
37 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties New Castle County, DE, Cecil County, MD, Hunterdon County, NJ, Morris County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.6 hours before the alert went out and 215 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, Brookhaven, NY at 12:00Z on 2011-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2011-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 559 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
498 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
559 m²/s²
0-3 km storm-relative helicity
585 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

094 
WGUS41 KPHI 102136
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
436 PM EST THU MAR 10 2011

DEC003-MDC015-NJC019-027-037-041-PAC011-017-025-029-045-077-089-091-
095-110930-
/O.NEW.KPHI.FA.W.0010.110310T2136Z-110311T0930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CECIL MD-SUSSEX NJ-WARREN NJ-MORRIS NJ-HUNTERDON NJ-DELAWARE PA-
CHESTER PA-MONTGOMERY PA-BERKS PA-LEHIGH PA-NORTHAMPTON PA-CARBON PA-
BUCKS PA-MONROE PA-NEW CASTLE DE-
436 PM EST THU MAR 10 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN...
  CECIL COUNTY IN NORTHEAST MARYLAND...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...
  HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
  WESTERN DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA...
  CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA...
  MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
  BERKS COUNTY IN EASTERN PENNSYLVANIA...
  LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
  NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...

* UNTIL 430 AM EST FRIDAY

* AT 430 PM EST BANDS OF HEAVY RAIN WERE DEVELOPING NORTHWARD IN THE
  WARNING AREA OF EASTERN PENNSYLVANIA...FAR NORTHERN SECTIONS OF
  NEW JERSEY AND DELAWARE AND EXTREME NORTHEAST MARYLAND. THIS RAIN
  WILL EVENTUALLY CAUSE FLOODING OF AT LEAST SOME SMALL STREAMS IN
  THE WARNING AREA TONIGHT.

* AT 4 PM...ONE TO 2 INCHES OF RAIN HAD FALLEN ACROSS MUCH OF
  THE WARNING AREA. ANOTHER 1 TO 2.5 INCHES IS EXPECTED BETWEEN NOW
  AND 4 AM FRIDAY WITH ISOLATED STORM TOTALS NEAR 4 INCHES EXPECTED
  IN NORTHEAST PENNSYLVANIA AND FAR NORTHERN NEW JERSEY. THIS RAIN IS
  RUNNING OFF RAPIDLY DUE TO SATURATED GROUND FROM SUNDAY NIGHTS 
  HEAVY RAIN.   

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SOME 
SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. 
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF 
CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF 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.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

&&

LAT...LON 4122 7440 4104 7449 4096 7428 4062 7492
      3953 7562 3948 7601 3972 7624 3978 7607
      4014 7590 4037 7625 4055 7617 4074 7578
      4091 7600 4100 7575 4110 7577 4125 7550
      4126 7515 4116 7516 4109 7503 4135 7471

$$

DRAG
8 follow-up statements
132 
WGUS41 KPHI 110659
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
159 AM EST FRI MAR 11 2011

DEC003-MDC015-NJC019-027-037-041-PAC011-017-025-029-045-077-089-091-
095-111330-
/O.EXT.KPHI.FA.W.0010.000000T0000Z-110311T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CECIL MD-SUSSEX NJ-WARREN NJ-MORRIS NJ-HUNTERDON NJ-DELAWARE PA-
CHESTER PA-MONTGOMERY PA-BERKS PA-LEHIGH PA-NORTHAMPTON PA-CARBON PA-
BUCKS PA-MONROE PA-NEW CASTLE DE-
159 AM EST FRI MAR 11 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN...
  CECIL COUNTY IN NORTHEAST MARYLAND...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...
  HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
  WESTERN DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA...
  CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA...
  MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
  BERKS COUNTY IN EASTERN PENNSYLVANIA...
  LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
  NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...

* UNTIL 830 AM EST

* AT 151 AM EST...MANY HYDROLOGIC GAGES ACROSS THE WARNED AREA 
CONTINUE TO SHOW RISING WATERS. THE FOLLOWING CREEKS WERE ABOVE 
FLOOD STAGE...CRUM CREEK AT NEWTOWN SQUARE, RIDLEY CREEK AT MEDIA, 
THE WEST BRANCH BRANDYWINE CREEK AT COATESVILLE AND HONEYBROOK, 
FRENCH CREEK AT PHOENIXVILLE, WISSAHICKON CREEK AT FORT WASHINGTON, 
PERKIOMEN CREEK AT EAST GREENVILLE, MANATAWNY CREEK AT SPANGVILLE, 
TOBYHANNA CREEK AT BLAKESLEE, AND BROADHEAD CREEK AT ANALOMINK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. IF 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.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

&&

LAT...LON 4122 7440 4104 7449 4096 7428 4062 7492
      3953 7562 3948 7601 3972 7624 3978 7607
      4014 7590 4037 7625 4055 7617 4074 7578
      4091 7600 4100 7575 4110 7577 4125 7550
      4126 7515 4116 7516 4109 7503 4135 7471

$$

KRUZDLO
230 
WGUS81 KPHI 110834
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
334 AM EST FRI MAR 11 2011

DEC003-MDC015-110844-
/O.CAN.KPHI.FA.W.0010.000000T0000Z-110311T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CECIL MD-NEW CASTLE DE-
334 AM EST FRI MAR 11 2011

...THE FLOOD WARNING HAS BEEN CANCELLED FOR URBAN AREAS AND SMALL
STREAMS IN NORTHERN NEW CASTLE AND CECIL COUNTIES...

LAT...LON 4122 7441 4121 7440 4104 7449 4096 7428
      4062 7492 3982 7545 3984 7563 3973 7578
      3972 7615 4014 7590 4037 7625 4055 7617
      4074 7578 4091 7600 4100 7575 4110 7577
      4125 7550 4126 7515 4109 7503 4135 7471

$$

NJC019-027-037-041-PAC011-017-025-029-045-077-089-091-095-111330-
/O.CON.KPHI.FA.W.0010.000000T0000Z-110311T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-MORRIS NJ-HUNTERDON NJ-DELAWARE PA-CHESTER PA-
MONTGOMERY PA-BERKS PA-LEHIGH PA-NORTHAMPTON PA-CARBON PA-BUCKS PA-
MONROE PA-
334 AM EST FRI MAR 11 2011

...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 830 AM EST FOR URBAN
AREAS AND SMALL STREAMS IN MONROE...NORTHWESTERN BUCKS...CARBON...
NORTHAMPTON...LEHIGH...BERKS...MONTGOMERY...CHESTER...WESTERN
DELAWARE...HUNTERDON...MORRIS...WARREN AND SUSSEX COUNTIES...

AT 334 AM EST...MANY HYDROLOGIC GAGES ACROSS THE WARNED AREA 
CONTINUE TO SHOW RISING WATERS. THE FOLLOWING CREEKS WERE ABOVE 
FLOOD STAGE...CRUM CREEK AT NEWTOWN SQUARE, RIDLEY CREEK AT MEDIA, 
THE WEST BRANCH BRANDYWINE CREEK AT COATESVILLE AND HONEYBROOK, 
FRENCH CREEK AT PHOENIXVILLE, WISSAHICKON CREEK AT FORT WASHINGTON, 
PERKIOMEN CREEK AT EAST GREENVILLE, MANATAWNY CREEK AT SPANGVILLE, 
TOBYHANNA CREEK AT BLAKESLEE, AND BROADHEAD CREEK AT ANALOMINK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF 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.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

&&

LAT...LON 4122 7441 4121 7440 4104 7449 4096 7428
      4062 7492 3982 7545 3984 7563 3973 7578
      3972 7615 4014 7590 4037 7625 4055 7617
      4074 7578 4091 7600 4100 7575 4110 7577
      4125 7550 4126 7515 4109 7503 4135 7471

$$

KRUZDLO
841 
WGUS41 KPHI 111231
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
731 AM EST FRI MAR 11 2011

NJC019-027-037-041-PAC011-017-025-029-045-077-089-091-095-112130-
/O.EXT.KPHI.FA.W.0010.000000T0000Z-110311T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-MORRIS NJ-HUNTERDON NJ-DELAWARE PA-CHESTER PA-
MONTGOMERY PA-BERKS PA-LEHIGH PA-NORTHAMPTON PA-CARBON PA-BUCKS PA-
MONROE PA-
731 AM EST FRI MAR 11 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...
  HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
  WESTERN DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA...
  CHESTER COUNTY IN SOUTHEAST PENNSYLVANIA...
  MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA...
  BERKS COUNTY IN EASTERN PENNSYLVANIA...
  LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
  NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 430 PM EST FRIDAY

* AT 727 AM EST SMALL STREAMS IN THE WARNED AREA WERE RUNNING HIGH   
  IN RESPONSE TO HEAVY RAIN LAST NIGHT. THE FLOOD WARNING FOR URBAN  
  AND SMALL STREAMS HAS THEREFORE BEEN EXTENDED UNTIL THESE STREAMS  
  DRAIN BELOW FLOOD LEVELS.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN 
AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4122 7441 4121 7440 4104 7449 4096 7428
      4062 7492 3982 7545 3984 7563 3973 7578
      3972 7615 4014 7590 4037 7625 4055 7617
      4074 7578 4091 7600 4100 7575 4110 7577
      4125 7550 4126 7515 4109 7503 4135 7471

$$

JJM
617 
WGUS81 KPHI 111921
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
221 PM EST FRI MAR 11 2011

NJC019-027-PAC011-017-025-029-045-077-091-095-111928-
/O.CAN.KPHI.FA.W.0010.000000T0000Z-110311T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORRIS NJ-HUNTERDON NJ-DELAWARE PA-CHESTER PA-MONTGOMERY PA-BERKS PA-
LEHIGH PA-NORTHAMPTON PA-CARBON PA-BUCKS PA-
221 PM EST FRI MAR 11 2011

...THE FLOOD WARNING HAS BEEN CANCELLED FOR URBAN AREAS AND SMALL
STREAMS IN NORTHWESTERN BUCKS...CARBON...NORTHAMPTON...LEHIGH...
BERKS...MONTGOMERY...CHESTER...WESTERN DELAWARE...HUNTERDON AND
MORRIS COUNTIES...

LAT...LON 4121 7440 4092 7465 4090 7478 4080 7485
      4059 7518 4059 7519 4074 7520 4086 7505
      4095 7512 4092 7524 4086 7531 4081 7548
      4094 7557 4099 7550 4113 7566 4125 7550
      4126 7515 4116 7516 4109 7501 4135 7471

$$

NJC037-041-PAC089-112130-
/O.CON.KPHI.FA.W.0010.000000T0000Z-110311T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-MONROE PA-
221 PM EST FRI MAR 11 2011

...THE FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM EST FOR URBAN
AREAS AND SMALL STREAMS IN MONROE...WARREN AND SUSSEX COUNTIES...

AT 218 PM EST SEVERAL SMALL CREEKS AND STREAMS WERE CONTINUING TO 
FLOOD IN THE WARNED AREA. THESE SMALLER BASINS WILL TAKE A FEW MORE 
HOURS BEFORE THEY BEGIN TO CREST AND THEN RAPIDLY FALL. 

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

LAT...LON 4121 7440 4092 7465 4090 7478 4080 7485
      4059 7518 4059 7519 4074 7520 4086 7505
      4095 7512 4092 7524 4086 7531 4081 7548
      4094 7557 4099 7550 4113 7566 4125 7550
      4126 7515 4116 7516 4109 7501 4135 7471

$$

HEAVENER
132 
WGUS41 KPHI 112127
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
427 PM EST FRI MAR 11 2011

NJC037-041-PAC089-120130-
/O.EXT.KPHI.FA.W.0010.000000T0000Z-110312T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-MONROE PA-
427 PM EST FRI MAR 11 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR SMALL STREAMS IN...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 830 PM EST

* AT 425 PM EST SMALL STREAMS IN THE WARNED AREA CONTINUE TO RUN     
  HIGH IN RESPONSE TO HEAVY RAIN LAST NIGHT. THE FLOOD WARNING FOR   
  URBAN AND SMALL STREAMS HAS THEREFORE BEEN EXTENDED UNTIL THESE    
  STREAMS DRAIN BELOW FLOOD LEVELS.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN 
AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE IN 
ANY AREA WHERE WATER COVERS THE ROAD. 

&&

LAT...LON 4121 7440 4092 7465 4090 7478 4080 7485
      4059 7518 4059 7519 4074 7520 4086 7505
      4095 7512 4092 7524 4086 7531 4081 7548
      4094 7557 4099 7550 4113 7566 4125 7550
      4126 7515 4116 7516 4109 7501 4135 7471

$$
644 
WGUS41 KPHI 120056
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
756 PM EST FRI MAR 11 2011

NJC037-041-PAC089-120530-
/O.EXT.KPHI.FA.W.0010.000000T0000Z-110312T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-MONROE PA-
756 PM EST FRI MAR 11 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR SMALL STREAMS IN...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 1230 AM EST

* AT 755 PM EST SMALL STREAMS IN THE WARNED AREA CONTINUE TO RUN     
  HIGH IN RESPONSE TO HEAVY RAIN LAST NIGHT. THE FLOOD WARNING FOR   
  URBAN AND SMALL STREAMS HAS THEREFORE BEEN EXTENDED UNTIL THESE    
  STREAMS DRAIN BELOW FLOOD LEVELS.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN 
AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE IN 
ANY AREA WHERE WATER COVERS THE ROAD. 

LAT...LON 4121 7440 4092 7465 4090 7478 4080 7485
      4059 7518 4059 7519 4074 7520 4086 7505
      4095 7512 4092 7524 4086 7531 4081 7548
      4094 7557 4099 7550 4113 7566 4125 7550
      4126 7515 4116 7516 4109 7501 4135 7471

$$
430 
WGUS41 KPHI 120413
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1113 PM EST FRI MAR 11 2011

NJC037-041-PAC089-121130-
/O.EXT.KPHI.FA.W.0010.000000T0000Z-110312T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-MONROE PA-
1113 PM EST FRI MAR 11 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR SMALL STREAMS IN...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...
  MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 630 AM EST SATURDAY

* AT 1110 PM EST...SMALL RIVERS AND STREAMS ARE STARTING TO CREST 
ACROSS THE AREA...BUT REMAIN HIGH DUE TO THE HEAVY RAIN THURSDAY AND 
THURSDAY NIGHT. THE FLOOD WARNING HAS BEEN EXTENDED UNTIL SMALL 
RIVERS...CREEKS AND STREAMS DROP BELOW FLOOD LEVELS.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A FLOOD WARNING MEANS FLOODING IS OCCURRING OR IS IMMINENT. MOST
FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS
WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO
CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING
WATER MOVE UP TO HIGHER GROUND.

&&

LAT...LON 4121 7440 4092 7465 4090 7478 4080 7485
      4059 7518 4059 7519 4074 7520 4086 7505
      4095 7512 4092 7524 4086 7531 4081 7548
      4094 7557 4099 7550 4113 7566 4125 7550
      4126 7515 4116 7516 4109 7501 4135 7471

$$

HAYES
246 
WGUS81 KPHI 121040
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
540 AM EST SAT MAR 12 2011

NJC037-041-PAC089-121050-
/O.CAN.KPHI.FA.W.0010.000000T0000Z-110312T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-MONROE PA-
540 AM EST SAT MAR 12 2011

...THE FLOOD WARNING HAS BEEN CANCELLED FOR SMALL STREAMS IN
MONROE...WARREN AND SUSSEX COUNTIES...

SMALL RIVERS...STREAMS AND CREEKS IN THE REGION CONTINUE TO FALL AND 
NONE ARE ABOVE FLOOD STAGE. BECAUSE OF THIS...THE FLOOD WARNING HAS 
BEEN CANCELLED.

LAT...LON 4121 7440 4092 7465 4090 7478 4080 7485
      4059 7518 4059 7519 4074 7520 4086 7505
      4095 7512 4092 7524 4086 7531 4081 7548
      4094 7557 4099 7550 4113 7566 4125 7550
      4126 7515 4116 7516 4109 7501 4135 7471

$$

HAYES

What forecasters said that day

The local office's own words before this areal flood warning 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 warning went out at Mar 10, 3:57 PM EST, 39 minutes earlier.

Area forecast discussion, Mar 10, 3:57 PM EST, 39 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
357 PM EST THU MAR 10 2011

.SYNOPSIS...
LOW PRESSURE OVER WESTERN PENNSYLVANIA AND ANOTHER OVER VIRGINIA
WILL MOVE NORTHEASTWARD THROUGH TONIGHT AND BRING A COLD FRONT
ACROSS THE AREA TOWARD MORNING. WEAK HIGH PRESSURE WILL CROSS THE
AREA FRIDAY NIGHT INTO SATURDAY. AN ALBERTA CLIPPER LOW PRESSURE
SYSTEM IS THEN FORECAST TO PASS JUST NORTH OF OUR REGION AND BRING
ANOTHER COLD FRONT ACROSS ON SATURDAY. A HIGH PRESSURE SYSTEM
WILL THEN BUILD IN FOR EARLY NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
LATEST RADAR IMAGERY IS COVERED WITH ECHOES, MAINLY OVER PA,
PORTIONS OF NJ AND MD, BUT THERE IS MORE RAIN DEVELOPING TO THE
SW OVER MD AND VA THAT WILL MOVE THROUGH LATER. ADDITIONALLY,
THERE MAY BE SOME THUNDERSTORM DEVELOPMENT OVER CENTRAL VA AND THE
REMNANTS OF THOSE STORMS WILL HAVE TO MOVE THROUGH AS WELL. SO,
OVERALL, THINGS STILL LOOK WET.

IF THERE IS ANY POTENTIAL GOOD NEWS IN TODAY'S MODEL DATA IT IS
THAT MDL QPF HAS COME DOWN A BIT. IT REMAINS TO BE SEEN IF THIS
WILL COME TO FRUITION WITH THE PRECIP DEVELOPING TO THE SW. SOME
AREAS, ESPECIALLY IN NERN PA AND NWRN NJ HAVE ALREADY RECEIVED OVER
1.5 INCHES OF RAIN. HOWEVER, THERE WILL CONTINUE TO BE BREAKS IN
THE ACTION THROUGH THE EVENT.

NEVERTHELESS, ALL OF THE MDL DATA REMAINS IN EXCELLENT AGREEMENT
THAT THE WORST IS YET TO COME, AND IT WILL LIKELY BE IN THE TIME
PERIOD 11/00Z-11/06Z. SO, THE FLOOD WATCH WILL REMAIN IN EFFECT
UNCHANGED. IT IS ALSO STILL PSBL THAT THERE COULD BE AN ISOLD
TSTM, ESPECIALLY OVER SRN AND ERN SECTIONS, AND OF COURSE, ANY
CONVECTION WILL ONLY ENHANCE RAINFALL AMTS.

RAINFALL AMOUNTS OF 2 TO 3 INCHES WILL BE WIDESPREAD ESPECIALLY
FROM THE I-95 CORRIDOR N AND W. THESE AMOUNTS WILL PRODUCE MINOR
TO MAJOR FLOODING ON THE MAJORITY OF OUR WATERWAYS.

THE RAIN WILL BEGIN TO TAPER OFF LATER TONIGHT AND SHOULD END FROM
SOUTH TO NORTH BY DAYBREAK AFTER A COLD FRONT PASSES THROUGH THE
REGION. HOWEVER, THE FLOODING WILL CONTINUE THROUGH FRIDAY AND
INTO THE WEEKEND ON SOME OF OUR SLOWER REACTING RIVERS AND
STREAMS.

SE TO E WINDS WILL CONTINUE UNTIL FROPA AND WILL REMAIN QUITE
GUSTY, WITH SPEEDS PSBLY AS HIGH AS 35-40 MPH OVER SRN AND ERN
AREAS THROUGH THE EVENING HOURS.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/...
THE RAIN WILL CONTINUE TO WIND DOWN ERLY IN THE PD, WITH MOST OF
THE MDLS IN AGREEMENT THAT ITS OVER EVERYWHERE BY 11/18Z, IF NOT
SOONER. THE REST OF FRIDAY THEN LOOKS DRY WITH TEMPS IN THE 50S.
WEAK HIGH PRESSURE WILL BUILD IN FROM THE SOUTH ON SATURDAY, AS A
WEAK IMPULSE ROTATES THROUGH THE UPR LOW AND BRINGS A CLIPPER TYPE
SYSTEM THROUGH BUT AFFECTS AREAS MAINLY TO OUR N. HIGH PRESSURE
BUILDS MORE STRONGLY IN FOR SUNDAY. TEMPS WILL BE MAINLY IN THE
20S AND 30S SATURDAY NIGHT BUT WILL REBOUND QUITE NICELY INTO THE
50S ON SUNDAY.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...
MUCH OF THE FIRST HALF OF THE EXTENDED PERIOD WILL HAVE FAIR WEATHER
ACROSS THE MIDDLE ATLANTIC REGION AS WE WILL BE BETWEEN SYSTEMS. ONE
LOW WILL BE MOVING OFF EASTERN CANADA WHILE A WAVE MOVES ACROSS THE
SOUTHEAST STATES MON AND INTO THE ATLANTIC TUE. A RIDGE BETWEEN THESE
SYSTEMS WILL KEEP BASICALLY DRY WEATHER FOR OUR AREA. TEMPERATURES
WILL BE NEAR NORMAL OR JUST SLIGHTLY BELOW WITH A NRLY FLOW FROM
CANADA PREVAILING EARLY NEXT WEEK. HIGHS MON AND TUE WILL BE IN THE
LOW 40S ACROSS THE NORTH AND MID TO UPPER 40S OVER THE DELMARVA AND
METRO PHILADELPHIA.

A PROGRESSIVE SHORT WAVE WHICH WILL MOVE ALONG THE U.S.-CANADA
BORDER NEXT WEEK WILL ARRIVE OVER OUR AREA WED AND PERSIST INTO THU.
IT WILL BRING THE POSSIBILITY FOR SOME SHOWERS AND MILDER TEMPS. THE
HPC GRAPHICS...WHICH FAVOR THE TIMING OF THE 00Z ECMWF...WAS USED
FOR THE SYSTEM. HIGHS ACROSS THE DELMARVA AND PHILADELPHIA WILL BE
IN THE LOW 50S WED AND UPPER 50S THU...READINGS WILL BE 5 OR SO
DEGREES LESS ACROSS THE NRN AREAS.

&&

.AVIATION /21Z THURSDAY THROUGH TUESDAY/...
THE FOLLOWING DISCUSSION IS FOR KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY AND SURROUNDING AREAS.

REST OF TODAY...CONDS MVFR VARIABLE IFR IN SHOWERS VARYING INTENSITY
FROM LIGHT TO HEAVY. GUSTY ESE WINDS RANGING FROM NEAR 20 KNOTS VCNTY
KRDG KABE TO BETWEEN 33 AND 38 KNOTS ELSEWHERE. INCREASING LLWS
THROUGH THE AFTERNOON BETWEEN 500 AND 2000 FT.

TONIGHT...IFR VARIABLE LIFR BAND OF INTENSE SHOWERS WITH EMBEDDED
THUNDER IS EXPECTED ALONG WITH LLWS OF 55 TO 65 KTS AS 5MB 3 PM SFC
PRES FALLS AHEAD OF LOW PRES MOVING NNE INTO CENTRAL PA SWEEPS ITS
COOL FRONT EAST AND CONCENTRATES RAIN IN A 3-6 HR WIDE BAND AHD OF
THE FRONT. WE MAY NEED TO ADD CB TO THE FCST FOR FOR SOME OF THE
TAF SITES...ESPECIALLY KPHL S AND E IN THE 23Z-04Z TIME FRAME.
SURFACE GUSTS IN THE PHL/ILG SEWD SHOULD BRIEFLY REACH 40 KNOTS.

AFTER 05Z...HEAVY SHOWERS AND LLWS TRANSLATE SLOWLY NEWD OF OUR
TAF SITES AND ABATE BY 09Z LEAVING IFR OR LIFR IN FOG/STRATUS AND
VIRTUALLY NO WIND BY 10Z FRIDAY.

OUTLOOK...
FRIDAY...IFR CONDITIONS IMPROVE TO VFR CIGS BETWEEN 14Z AND 16Z.
SW WIND GUSTS 15 TO 20 KNOTS MIDDAY.

FRIDAY NIGHT AND SATURDAY...VFR CONDITIONS SHOULD CONTINUE (WITH
A BRIEF PERIOD OF MVFR CEILINGS POSSIBLE AT KRDG AND KABE) AHEAD
WHAT SHOULD BE A DRY COLD FRONTAL PASSAGE LATE SATURDAY NIGHT OR
SUNDAY MORNING. SW GUSTS DURING THE MIDDAY HOURS SATURDAY TO 25
KNOTS.

SUNDAY...BEHIND THE FRONT...VFR CONDITIONS SHOULD CONTINUE...WITH
WIND GUSTS TO 25 KNOTS FROM THE WEST AND NORTHWEST..

&&

.MARINE...
GALE CONTINUED.

SO FAR THIS MORNING SINCE 7 AM EDT CHES LIGHT AND SHIP JOHN SHOAL
HAD ISOLATED GUSTS 34-35KTS AND CAPE MAY 37 KT WHICH SEEMS TO BE
LINKED WELL TO THE BL WIND FCST OF THE RECENT NAM CYCLES. DURING
MID AFTERNOON MANY REPORTS OF 30-35 KT ON THE WARMER LAND.

BEST CHANCE OF FREQUENT GALE FORCE GUSTS WOULD BE THE LATE AFTERNOON
THROUGH 0600 UTC FRIDAY (DURING THE TIME OF BEST MIXING UNDER THE
LOW INVERSION AND GRADIENT) ALONG THE WARMEST NEARSHORE WATERS.

CONVECTIVE BURST IN DELAWARE AROUND 7 PM MAY CONTRIBUTE TO HIGHER
GUSTS THIS EVENING. WATCH THE ADVANCE OF THE LIGHTNING OUT OF
VIRGINIA LATE TODAY.

AFTER 0600 UTC...THE GRADIENT STARTS TO BACK OFF A BIT AHEAD OF
THE COLD/OCCLUDED FRONT).

WITH THE PASSAGE OF THE FRONT...WIND WILL BECOME SOUTHWEST AND DROP
OFF CONSIDERABLY FOR A TIME FRIDAY MORNING (PERHAPS EVEN BELOW SMALL
CRAFT LEVELS). THIS MAY TEND TO INCREASE AGAIN AS THE GRADIENT TRIES
TO TIGHTEN IN THE AFTERNOON. EVEN IF WINDS DO NOT GET BACK TO SMALL
CRAFT LEVELS FRIDAY...SEAS WILL REMAIN WELL ABOVE 5 FEET ON THE
OCEAN WATERS THROUGHOUT THE DAY...AS THE SWELL SLOWLY SORTS ITSELF
OUT.

THE GRADIENT SHOULD INCREASE FRIDAY NIGHT INTO SATURDAY AHEAD OF THE
NEXT COLD FRONT. GUSTS SHOULD GET INTO THE SMALL CRAFT RANGE DURING
FRIDAY NIGHT AND LAST INTO SATURDAY NIGHT. SEAS MAY HAVE A HARD TIME
GETTING BELOW 5 FEET ON THE OCEAN BEFORE INCREASING AGAIN IN THE
SOUTHWEST FETCH AHEAD OF THE FRONT.

THE PASSAGE OF THE DRY COLD FRONT SHOULD OCCUR EARLY SUNDAY MORNING.
BEHIND THE FRONT...THE GRADIENT AND MIXING IN THE COLD AIR ADVECTION
SHOULD SUPPORT SMALL CRAFT WIND GUSTS...ESPECIALLY ON THE OCEAN
WATERS...FOR MUCH OF SUNDAY. AFTER THE PASSAGE OF THE FRONT...STRONG
HIGH PRESSURE WILL BUILD ACROSS EASTERN CANADA AND RIDGE DOWN THE
COAST...BRINGING SUB ADVISORY CONDITIONS FOR EARLY NEXT WEEK.

&&

.HYDROLOGY...
NO MAJOR CHANGES TO QPF. MODEL QPF HAS COME DOWN A BIT WITH
TODAY'S RUNS, BUT WITH PRECIP STILL DEVELOPING TO THE SW AND YET
TO MOVE THROUGH, ITS DIFFICULT TO DETERMINE IF THE LOWER AMTS WILL
COME TO FRUITION. WE ARE MAINLY GOING WITH 2.00 TO 3.00 INCHES
ACROSS THE REGION. WITH THESE FORECAST RAINFALL AMOUNTS, WE'RE
LOOKING AT A SIGNIFICANT FLOOD EVENT, NOT ONLY FROM HIGH WATER BUT
ALSO FROM THE LARGE AREAL EXTENT OF THE EVENT.

IN PENNSYLVANIA....

LEHIGH BASIN - CAUTION STAGE TO MINOR FLOODING
SCHUYLKILL RIVER BASIN - MINOR FLOODING
SOUTHEAST PA BASINS - MINOR TO MODERATE FLOODING
DELAWARE RIVER BASIN - MINOR TO MODERATE FLOODING
CARBON/MONROE COUNTY BASINS - MINOR TO MODERATE FLOODING

IN NEW JERSEY...

PASSAIC BASIN - MODERATE TO MAJOR FLOODING WITH SOME RECORDS POSSIBLE
RARITAN BASIN - MINOR TO MODERATE FLOODING WITH SOME MAJOR FLOODING
ASSUNPINK BASIN - MINOR TO MODERATE FLOODING
RANCOCAS BASIN - MINOR FLOODING

CREEKS AND RIVERS ARE FORECAST TO CLIMB ABOVE FLOOD STAGE TONIGHT AND
SATURDAY. CRESTS WILL OCCUR ALONG THE LARGE RIVERS SATURDAY INTO
SUNDAY. IN SOME CASES ACROSS THE PASSAIC, FORECAST POINTS WILL
REMAIN IN FLOOD THROUGH THE NEXT RISE AND NOT FALL BELOW FLOOD
STAGE UNTIL NEXT WEEK.

IF YOU LIVE OR WORK IN A FLOODPLAIN WHERE FLOODING COULD OCCUR,
PLEASE USE THE EARLY PART OF TODAY TO FINISH ANY LAST MINUTE
PREPARATIONS.

VISIT OUR ADVANCED HYDROLOGIC PREDICTION SERVICE (AHPS) WEBSITE FOR
THE LATEST RIVER FORECASTS (IN LOWERCASE)...

HTTP:/WATER.WEATHER.GOV/AHPS2/INDEX.PHP?WFO=PHI

FOR INUNDATION MAPPING ALONG PORTIONS OF THE DELAWARE RIVER...

HTTP:/WATER.WEATHER.GOV/AHPS/INUNDATION.PHP

&&

.TIDES/COASTAL FLOODING...
COASTAL FLOOD WARNING POSTED AT 3PM. ODDS FOR REACHING MODERATE
THRESHOLD ARE IN MY OPINION ABOUT 85 PERCENT AT PHL AND 65 PERCENT
AT REEDY POINT. ITS NOT A LOCK SHUT CASE FOR MODERATE BUT TRENDS
ARE FAVORABLE AS SOUTHEAST WINDS CONTINUE PILING WATER UP AT THE
UPPER END OF THE DEL BAY THIS EVENING.

PHILADELPHIA HAD A HIGHER DEPARTURE EARLY THIS MORNING COMPARED TO
REEDY POINT WITH THE STORM TIDE EXCEEDING THE THE MINOR FLOOD
THRESHOLD BY LESS THAN AN INCH 8.22 VS THE FS OF 8.20. REEDY POINT
WAS HALF A FOOT UNDER FS. THIS IS POSSIBLY DUE TO THE NARROWER
CHANNELING AND EASIER FILLING OF THE BASIN NEAR PHL AND ALSO THE
HIGHER THAN NORMAL FLOW OF THE DELAWARE RIVER.

THAT SAID...THIS PLACES PHL IN A PRETTY GOOD POSITION TO REACH
MODERATE COASTAL FLOOD THRESHOLD TOMORROW MORNING.

REEDY POINT THIS AFTERNOON WAS ABOUT .3 UNDER FS AT 230 PM
AND PHL IS PROJECTING ABOUT 0 TO .1 UNDER FS AROUND 524 PM.

THE OVERALL SCENARIO FOR COASTAL FLOODING HAS NOT CHANGED FOR THE
HIGH TIDE CYCLE LATE TONIGHT AND EARLY FRIDAY MORNING. THE GREATEST
THREAT REMAINS ON THE UPPER DELAWARE BAY AND THE DELAWARE
RIVER...WHERE FUNNELING OF GALE FORCE WIND GUSTS COULD PRODUCE
MODERATE TIDAL FLOODING DURING THE EARLY MORNING HIGH TIDE CYCLE.

LOCAL GUIDANCE AND THE MDL STORM SURGE GUIDANCE BOTH SUGGEST TIDE
HEIGHTS APPROACHING MODERATE TIDAL FLOODING AS HIGH TIDE APPROACHES.
HIGH TIDE OCCURS AT REEDY POINT AROUND 230 AM FRIDAY...AND THE HIGH
TIDE OCCURS AT PHILADELPHIA CLOSER TO 530 AM FRIDAY.

CHESAPEAKE BAY...GREATEST IMPACT OF THE PERSISTENT GUSTY ESE FLOW
IS ON THE WEST SIDE OF THE BAY AND TO OUR KNOWLEDGE NO FLOODING
OCCURRED THIS MORNING ON THE MD E SHORE. FORECASTS ARE RUNNING TO
HIGH SO FAR ON CBOFS AND SO FOR NOW...I THINK ODDS STRONGLY FAVOR
ONLY ADVY CRITERIA THIS EVENING AS IS ALREADY POSTED IN OUR PRODUCT.

THE HIGH TIDE CYCLE LATE THIS EVENING COULD PRODUCE A BETTER CHANCE
AT MINOR TIDAL FLOODING. BASED ON THE CHESAPEAKE BAY FORECASTING
SYSTEM OUTPUT...BOTH CAMBRIDGE AND TOLCHESTER WOULD EXCEED MINOR
TIDAL FLOODING BENCHMARK NUMBERS DURING THIS TIDE CYCLE. HIGH TIDE
THIS EVENING OCCURS BETWEEN 730 PM AND 1100 PM...FROM SOUTH TO
NORTH.

&&

.CLIMATE...
ANOTHER ROBUST SURGE OF MOISTURE FROM THE SOUTHWEST WILL INUNDATE
OUR REGION ONCE AGAIN AND MAY PROVIDE SOME AREAS WITH RECORD OR
NEAR RECORD RAINFALL. IT APPEARS THAT WE WILL HAVE A GREAT CHANCE AT
BREAKING SOME ONE-DAY RAINFALL RECORDS ACROSS SOME OF OUR 8 CLIMATE
SITES. THESE RECORDS ARE FOR MARCH 10 & 11.

MARCH 10 RAINFALL RECORDS:            ALL-TIME 1-DAY MARCH RECORDS:

PHL ->  1.43 (1994)                   PHL -> 2.79 (3/15/1912)
ABE ->  1.25 (1994)                   ABE -> 2.99 (3/11/1952)
ILG ->  1.50 (1902)                   ILG -> 3.21 (3/21/2000)
RDG ->  1.70 (1994)                   RDG -> 3.03 (3/20/1958)
TTN ->  1.40 (1994)                   TTN -> 3.62 (3/25/1876)
ACY ->  1.25 (1994)                   ACY -> 2.69 (3/10/2010)

MARCH 11 RAINFALL RECORDS:

PHL -> 1.69 (1952)
ABE -> 2.99 (1952)
ILG -> 1.43 (1952)
RDG -> 1.30 (1952)
TTN -> 2.19 (1901)
ACY -> 1.10 (1924)

IT APPEARS OUR REAL TIME DATA IS A CLOSE TO FIT TO THE RADAR OHP
AND STP INFORMATION.

SINCE MIDNIGHT FOR THE FOLLOWING PARAGRAPH THROUGH 330 PM
WALNUTPORT IN NORTHAMPTON COUNTY PA 1.97
MANY MANY REPORTS OF 1 TO 1.87 INCHES E PA AND NNJ...THE
HEAVIEST NEAR THE POCONOS AND KITTATINNY RIDGES.

EVENT STORM TOTALS AS OF 1 PM FOR CLIMATE SITES EXCEPT ABE
ABE 1.29  NEW DAILY RECORD AND CLIMBING.

THROUGH 1 PM
ILG 0.90
RDG 0.87
PHL 0.50
TTN 0.35

&&

.PHI WATCHES/WARNINGS/ADVISORIES...
PA...FLOOD WATCH THROUGH FRIDAY MORNING FOR PAZ054-055-060>062-
     067>071.
     COASTAL FLOOD WARNING FROM 1 AM TO 8 AM EST FRIDAY FOR PAZ070-
     071.
NJ...FLOOD WATCH THROUGH FRIDAY MORNING FOR NJZ001-007>010-012>027.
     COASTAL FLOOD WARNING FROM 1 AM TO 8 AM EST FRIDAY FOR
     NJZ016>019.
DE...FLOOD WATCH THROUGH FRIDAY MORNING FOR DEZ001>004.
     COASTAL FLOOD WARNING FROM 1 AM TO 8 AM EST FRIDAY FOR DEZ001.
MD...FLOOD WATCH THROUGH FRIDAY MORNING FOR MDZ008-012-015-019-020.
     COASTAL FLOOD ADVISORY UNTIL MIDNIGHT EST TONIGHT FOR MDZ012-
     015-019-020.
MARINE...GALE WARNING UNTIL 3 AM EST FRIDAY FOR ANZ430-431-450>455.

&&

SYNOPSIS...NIERENBERG
NEAR TERM...NIERENBERG
SHORT TERM...NIERENBERG
LONG TERM...O'HARA
AVIATION...DRAG 357
MARINE...DRAG 357
HYDROLOGY...
TIDES/COASTAL FLOODING...357
CLIMATE...357
Hazardous weather outlook, Mar 10, 3:50 PM EST, 46 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
350 PM EST THU MAR 10 2011

NJZ001-PAZ054-055-112100-
SUSSEX-CARBON-MONROE-
350 PM EST THU MAR 10 2011

...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW JERSEY AND
NORTHEAST 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.

   FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

   FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NJZ007>010-012-015-PAZ060>062-067>069-112100-
WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-MERCER-BERKS-LEHIGH-
NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-
350 PM EST THU MAR 10 2011

...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW JERSEY...NORTHERN
NEW JERSEY...NORTHWEST 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.

   FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

   FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ001-NJZ016>019-PAZ070-071-112100-
NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-
PHILADELPHIA-
350 PM EST THU MAR 10 2011

...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING...
...COASTAL FLOOD WARNING IN EFFECT FROM 1 AM TO 8 AM EST FRIDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN DELAWARE...SOUTHERN
NEW JERSEY 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.

   FLOOD WATCH.
   COASTAL FLOOD WARNING.

ADDITIONALLY, WINDS COULD GUST IN THE 35 TO 40 MPH RANGE THIS
EVENING WHICH COUPLED WITH THE WET GROUND COULD BRING DOWN TREES.
THERE COULD ALSO BE A RUMBLE OF THUNDER THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

   FLOOD WATCH.
   COASTAL FLOOD WARNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MDZ008-112100-
CECIL-
350 PM EST THU MAR 10 2011

...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MARYLAND.

.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.

   FLOOD WATCH.

ADDITIONALLY, WINDS COULD GUST IN THE 35 TO 40 MPH RANGE THIS
EVENING WHICH COUPLED WITH THE WET GROUND COULD BRING DOWN TREES.
THERE COULD ALSO BE A RUMBLE OF THUNDER THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

   FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ430-431-450>455-112100-
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-
350 PM EST THU MAR 10 2011

...GALE WARNING IN EFFECT UNTIL 3 AM EST FRIDAY...

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.

   GALE WARNING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MDZ012-015-019-020-112100-
KENT MD-QUEEN ANNES-TALBOT-CAROLINE-
350 PM EST THU MAR 10 2011

...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MARYLAND.

.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.

   FLOOD WATCH.
   COASTAL FLOOD ADVISORY.

THERE COULD ALSO BE A RUMBLE OF THUNDER THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

   FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

DEZ002>004-NJZ013-014-020>027-112100-
KENT-INLAND SUSSEX-DELAWARE BEACHES-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
350 PM EST THU MAR 10 2011

...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL DELAWARE...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.

   FLOOD WATCH.

ADDITIONALLY, WINDS COULD GUST IN THE 35 TO 40 MPH RANGE THIS
EVENING WHICH COUPLED WITH THE WET GROUND COULD BRING DOWN TREES.
THERE COULD ALSO BE A RUMBLE OF THUNDER THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

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

   FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 2:10 AM ESTCoastal Flood AdvisoryPHIDelaware, Philadelphia5 hr
Mar 10, 7:28 AM ESTAreal Flood AdvisoryPHIBerks, Bucks, Chester, Delaware, Lehigh, Monroe and 3 more6 hr
Mar 10, 1:17 PM ESTAreal Flood AdvisoryPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more5 hr
Mar 10, 3:02 PM ESTCoastal Flood WarningPHIDelaware, Philadelphia17 hr
Mar 10, 4:55 PM ESTRiver Flood WarningPHIChester17 hr
Mar 10, 5:17 PM ESTWind AdvisoryPHIDelaware, Philadelphia5 hr
Mar 10, 10:33 AM ESTRiver Flood WarningPHINew Castle4 hr
Mar 10, 3:20 AM ESTGale WarningPHI22 hr
Mar 10, 3:28 AM ESTCoastal Flood AdvisoryPHICaroline, Kent, Queen Anne's, Talbot21 hr

Nearby

Areal Flood Warnings in Pennsylvania, 2011Areal Flood Warnings in New Jersey, 2011Areal Flood Warnings in Delaware, 2011Every areal flood warning in 2011

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.