Alert archive / Pennsylvania / Special Weather Statements in 2014
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Mar 12, 2014, 5:20 PM EDT for 8 counties in Pennsylvania. It was in force for 55 min. 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 12, 2014, 5:20 PM EDT (21:20 UTC)
- Expired
- Mar 12, 2014, 6:15 PM EDT
- In force
- 55 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 117 km from the middle of the area, began a volume at 21:24 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2062 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
<!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>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Mar 12, 4:15 PM EDT, 1 hour 5 minutes earlier.
Area forecast discussion, Mar 12, 4:15 PM EDT, 1 hour 5 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, Mar 12, 4:35 PM EDT, 45 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>In the hours before
Special weather statement, Mar 12, 3:36 PM EDT, 1 hour 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 336 PM EDT WED MAR 12 2014 PAZ054-055-130000- CARBON-MONROE- INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG 336 PM EDT WED MAR 12 2014 ...PLUNGING TEMPERATURES AND STRONG WINDS EXPECTED TONIGHT... A RAPIDLY INTENSIFYING LOW PRESSURE SYSTEM WILL PULL A STRONG COLD FRONT ACROSS THE AREA EARLY THIS EVENING. AS THIS OCCURS TEMPERATURES IN THE 40S TO START THIS EVENING WILL RAPIDLY FALL THROUGH THE 30S AND 20S TOWARD MIDNIGHT, THEN TO NEAR 10 DEGREES BY DAYBREAK THURSDAY. AS THE MUCH COLDER AIR MOVES IN, ANY LEFTOVER RAIN MAY BRIEFLY END AS SOME SNOW AND ANY WET UNTREATED SURFACES WILL FLASH FREEZE. IN ADDITION, NORTHWESTERLY WINDS WILL GUST TO AROUND 45 MPH WITH THE PASSAGE OF THE COLD FRONT AND THEN THROUGH THE NIGHT. ALL OF THIS CAN RESULT IN HAZARDOUS TRAVEL ESPECIALLY ACROSS THE HIGHER ELEVATIONS. THE COMBINATION OF THE FALLING TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND CHILL VALUES DROPPING TO AROUND 10 DEGREES BELOW ZERO OVERNIGHT AND TOWARD MORNING. BE ON THE ALERT FOR RAPID CHANGES IN WEATHER AND ROAD CONDITIONS TONIGHT. NJZ001-007>010-012>015-PAZ060>062-103-105-106-130000- SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX- WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-BERKS-LEHIGH-NORTHAMPTON- WESTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS- INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN... FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK... TRENTON...READING...ALLENTOWN...BETHLEHEM...EASTON... COLLEGEVILLE...POTTSTOWN...CHALFONT...PERKASIE...MORRISVILLE... DOYLESTOWN 336 PM EDT WED MAR 12 2014 ...PLUNGING TEMPERATURES AND STRONG WINDS EXPECTED TONIGHT... A RAPIDLY INTENSIFYING LOW PRESSURE SYSTEM WILL PULL A STRONG COLD FRONT ACROSS THE AREA THIS EVENING. AS THIS OCCURS, WINDS WILL QUICKLY SHIFT TO THE NORTHWEST AND GUST TO AROUND 45 MPH ALONG AND BEHIND THE COLD FRONT. THE STRONGEST WIND GUSTS ARE EXPECTED TO OCCUR IN PENNSYLVANIA. FOLLOWING THE COLD FRONTAL PASSAGE, TEMPERATURES IN THE 40S AND 50S EARLY THIS EVENING WILL RAPIDLY FALL THROUGH THE 30S AND 20S TONIGHT. BY DAYBREAK THURSDAY, TEMPERATURES ARE EXPECTED TO BE IN THE UPPER TEENS TO LOWER 20S. THE COMBINATION OF THE FALLING TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND CHILL VALUES DROPPING INTO THE SINGLE DIGITS TO NEAR ZERO OVERNIGHT AND TOWARD MORNING. BE ON THE ALERT FOR RAPID CHANGES IN WEATHER CONDITIONS TONIGHT. ANY LEFTOVER STANDING WATER WILL FREEZE ON ROADWAYS AND WALKWAYS. DEZ001>004-MDZ008-012-015-019-020-NJZ016>027-PAZ070-071-101-102- 104-130000- NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD- QUEEN ANNES-TALBOT-CAROLINE-SALEM-GLOUCESTER-CAMDEN- NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY- ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN- SOUTHEASTERN BURLINGTON-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... MOORESTOWN...MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON... CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY... LONG BEACH ISLAND...WHARTON STATE FOREST...MEDIA...PHILADELPHIA... HONEY BROOK...OXFORD...WEST CHESTER...KENNET SQUARE... NORRISTOWN...LANSDALE 336 PM EDT WED MAR 12 2014 ...A LINE OF HEAVY SHOWERS AND EMBEDDED THUNDERSTORMS WITH POTENTIALLY LOCALLY DAMAGING WINDS TO MOVE THROUGH LATE THIS AFTERNOON AND EARLY THIS EVENING, FOLLOWED BY PLUNGING TEMPERATURES... A RAPIDLY INTENSIFYING LOW PRESSURE SYSTEM WILL PULL A STRONG COLD FRONT ACROSS THE AREA THIS EVENING. AS THIS OCCURS, A LINE OF HEAVY SHOWERS AND EMBEDDED THUNDERSTORMS ARE EXPECTED TO MOVE THROUGH. THERE IS THE POTENTIAL FOR LOCALLY DAMAGING WINDS TO ACCOMPANY THIS LINE AS IT MOVES THROUGH FROM WEST TO EAST, GENERALLY BETWEEN 5 PM AND 8 PM. THE HIGHEST CHANCES FOR THIS TO OCCUR IS IN DELMARVA AND THE WESTERN PHILADELPHIA SUBURBS. ONCE THE LINE AND COLD FRONT MOVES THROUGH, WINDS WILL GUST TO AROUND 45 MPH ALONG WITH TEMPERATURES RAPIDLY FALLING. TEMPERATURES WILL START EARLY THIS EVENING AROUND 60 DEGREES, BUT THEN RAPIDLY FALL INTO THE 30S AND 20S DURING THE NIGHT. THE COMBINATION OF RAPIDLY FALLING TEMPERATURES AND GUSTY WINDS WILL RESULT IN WIND CHILL VALUES DROPPING INTO THE SINGLE DIGITS ACROSS MANY AREAS TOWARD MORNING. BE ON THE ALERT FOR RAPID CHANGES IN WEATHER CONDITIONS LATER THIS AFTERNOON AND TONIGHT. ANY LEFTOVER STANDING WATER WILL FREEZE ON ROADWAYS AND WALKWAYS. GIGI/GORSE
Special weather statement, Mar 12, 5:20 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
520 PM EDT WED MAR 12 2014
DEZ001-MDZ008-PAZ054-055-060>062-101>106-122215-
BERKS PA-CARBON PA-CECIL MD-EASTERN CHESTER PA-EASTERN MONTGOMERY PA-
LEHIGH PA-LOWER BUCKS PA-MONROE PA-NEW CASTLE DE-NORTHAMPTON PA-
UPPER BUCKS PA-WESTERN CHESTER PA-WESTERN MONTGOMERY PA-
520 PM EDT WED MAR 12 2014
...SHOWERS WITH STRONG WIND GUSTS WILL AFFECT BERKS...BUCKS...
CARBON...CHESTER...LEHIGH...MONROE...MONTGOMERY...NORTHAMPTON...
NORTHERN CECIL AND NORTHWESTERN NEW CASTLE COUNTIES...
AT 512 PM EDT...SHOWERS WITH STRONG WIND GUSTS WERE FORMING ALONG A
LINE FROM SCHUYLKILL COUNTY SOUTHWEST INTO NORTHERN MARYLAND NEAR
FREDERICK. THIS LINE IS MOVING EAST AT 55 MPH.
WIND GUSTS OF 40 TO 50 ARE POSSIBLE WITH THESE SHOWERS MOVE THROUGH.
THIS IS NEAR THE LEADING EDGE OF THE COLD FRONT.
THIS LINE OF SHOWERS WILL BE NEAR BLAKESLEE AROUND 530 PM...SCOTRUN
AROUND 545 PM...ANALOMINK AROUND 600 PM AND BLUE BELL AROUND 615 PM.
IF YOU SEE THREATENING WEATHER, PLEASE MOVE INDOORS QUICKLY.
LAT...LON 4052 7627 4074 7577 4092 7600 4100 7575
4111 7575 4126 7513 4109 7496 4098 7514
4070 7520 4038 7495 4013 7505 3998 7528
4005 7540 3984 7560 3984 7552 3954 7607
3972 7623 3979 7605 4014 7589 4041 7631The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 4:00 AM EDT | Storm Warning | PHI | 25 hr | |
| Mar 12, 4:05 AM EDT | Wind Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 35 hr |
| Mar 12, 6:17 PM EDT | Special Weather Statement | PHI | Hunterdon, Mercer, Morris, Somerset, Sussex, Warren | 88 min |
| Mar 12, 6:35 PM EDT | Special Weather Statement | PHI | Camden, Gloucester | 70 min |
| Mar 12, 6:58 PM EDT | Special Weather Statement | PHI | Salem | 77 min |
| Mar 12, 7:48 PM EDT | Special Marine Warning | PHI | 87 min | |
| Mar 12, 7:53 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 3 more | 82 min |
| Mar 12, 5:56 PM EDT | Special Weather Statement | PHI | Berks, Chester, Delaware, Montgomery | 79 min |
| Mar 12, 7:15 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 45 min |
| Mar 12, 7:59 PM EDT | Special Weather Statement | PHI | Caroline | 76 min |
Nearby
Special Weather Statements in Pennsylvania, 2014Every special weather statement 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.