Monday, April 18, 2016

SPC -- Elevated Fire Weather Outlook for April 19th -- portions of Mid-Atlantic and Northeastern USA

Updated and revised at 5:30 PM on April 18th

The NWS Storm Prediction Center issued their daily fire weather outlooks earlier today. I am interested in their day two outlook (April 19th). In this case, day two is April 19th. As you can see from the map below, portions of the mid-atlantic and the northeast, including New Jersey are under an elevated fire weather outlook. Recall that I wrote three articles on SPC Fire Weather outlooks here (with links to all articles in the series). The NWS Storm Prediction updates their Fire Weather Outlook page daily.

NWS Storm Prediction Center's Day 2 Fire Weather Outlook, issued on April 18, 2016 for April 19, 2016

Here is the text issued by the SPC that goes with the map above.:

ZCZC SPCFWDDY2 ALL
   FNUS22 KWNS 181709

   DAY 2 FIRE WEATHER OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1209 PM CDT MON APR 18 2016

   VALID 191200Z - 201200Z

   AN ELEVATED FIRE-WEATHER AREA IS INTRODUCED FOR PORTIONS OF THE
   MID-ATLANTIC AND NEW ENGLAND...WHERE GUSTY NORTHWESTERLY WINDS
   BEHIND A COLD FRONT WILL COMBINE WITH MODESTLY REDUCED RH VALUES AND
   QUITE DRY FINE FUELS. ALTHOUGH GUIDANCE STILL INDICATES ONLY
   MARGINAL LOW-LEVEL DRYING...DIURNAL MIXING AMIDST A CONSIDERABLY DRY
   AIR MASS /PW VALUES AROUND 0.2-0.4 INCHES/ SHOULD BE SUFFICIENT FOR
   RH VALUES BELOW 30-35 PERCENT. IN COMBINATION WITH SUSTAINED NWLY
   WINDS AROUND 15-25 MPH...THESE DRY CONDITIONS WILL RESULT IN
   ELEVATED/LOCALLY CRITICAL FIRE-WEATHER CONCERNS.

   ..PICCA.. 04/18/2016

   .PREV DISCUSSION... /ISSUED 0230 AM CDT MON APR 18 2016/

   ...SYNOPSIS...
   UPPER LOW THAT REMAINED QUASI-STATIONARY OVER THE WEEKEND IS
   EXPECTED TO BEGIN MOVING SLOWLY EWD ON TUESDAY...LIKELY REACHING
   CNTRL NEB BY 12Z WED. SURFACE HIGH PRESSURE WILL REMAIN IN PLACE E
   OF MS RIVER...CONTRIBUTING TO ANOTHER WARM AND DRY DAY ACROSS MUCH
   OF THE ERN CONUS. 

   SUSTAINED NWLY WINDS AROUND 20 MPH ARE POSSIBLE ACROSS THE NORTHEAST
   STATES. HOWEVER...TEMPERATURES WILL BE SLIGHTLY COOLER AND RH VALUES
   SLIGHTLY HIGHER IN THIS REGION THAN ON SUNDAY OR MONDAY...MITIGATING
   THE FIRE WEATHER POTENTIAL. FARTHER S /MID-ATLANTIC INTO THE
   SOUTHEAST/...MIN RH VALUES FROM 20 TO 25 PERCENT ARE ANTICIPATED BUT
   WEAK WINDS WILL KEEP THE FIRE WEATHER THREAT LOW. IN ALL...THE FIRE
   WEATHER THREAT IS EXPECTED TO BE LOW ACROSS THE CONUS ON TUESDAY.

All areas mapped out in the SPC Day 2 (April 19, 2016) Fire Outlook Map (see above) as being under an elevated fire weather outlook  are now under a fire weather watch issued by their local National Weather Service Forecast Office, see the map below. If you are interested in fire information for your state or region -- fire weather watches or red flag warnings issued by your local National Weather Service Weather Forecast Office -- one starting point is the NWS Fire Weather Page (information updated at least once a day). The image below is a static file (updated frequently) from the National Weather Service (fire weather watches are in yellow). You can get the same information by going to the National Weather Service and clicking on the area you are interested in. You will then get the website for the local NWS Weather Forecasting Office providing forecasts for the area of a State that you are interested in, then look around for local fire weather information.
obtained on April 18, 2016 (5 PM EDT) from from http://www.srh.noaa.gov/ridge2/fire/briefing.php 

Here is  the fire weather watch issued by my NWS Forecast Office in Mt. Holly NJ.  

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
200 PM EDT MON APR 18 2016

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-070-071-101>106-191000-
/O.NEW.KPHI.FW.A.0001.160419T1600Z-160420T0000Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-
SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-DELAWARE-PHILADELPHIA-WESTERN CHESTER-EASTERN CHESTER-
WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-LOWER BUCKS-
200 PM EDT MON APR 18 2016

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH
TUESDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT FROM TUESDAY AFTERNOON THROUGH
TUESDAY EVENING.

* AFFECTED AREA...NEW JERSEY...EASTERN PENNSYLVANIA...DELAWARE...
  AND THE EASTERN SHORE OF MARYLAND.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS 20 TO 25 MPH.

* RELATIVE HUMIDITY...25 TO 30 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP MAY QUICKLY GET OUT OF CONTROL
  AND BECOME DIFFICULT TO CONTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR DUE TO A COMBINATION OF STRONG WINDS...LOW
RELATIVE HUMIDITIES...AND DRY FUELS. LISTEN FOR LATER FORECASTS
AND POSSIBLE RED FLAG WARNINGS.

FOR MORE INFORMATION ABOUT WILDFIRE DANGER...BURN
RESTRICTIONS...AND WILDFIRE PREVENTION AND EDUCATION...PLEASE
VISIT YOUR STATE FORESTRY OR ENVIRONMENTAL PROTECTION WEBSITE.

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