NOUS41 KWBC 251207 CCA



Public Information Notice: Corrected

National Weather Service Headquarters Washington DC

807 AM EDT Tue Jun 25 2013


To:        Subscribers:

           -Family of Services

           -NOAA Weather Wire Service

           -Emergency Managers Weather Information Network


           Other NWS partners and NWS employees


From:      Eli Jacks

           Chief, Fire and Public Weather Services Branch


Subject:   Corrected: Soliciting Comments until July 30, 2013,

           on National Centers for Environmental Prediction

           Storm Prediction Center Dry Thunderstorm Fire Weather

           Outlooks for Days 4-8, CONUS Only


Corrected Web link for Product Description Document (PDD).


NWS is accepting comments beginning June 25, 2013, at 1500

Coordinated Universal Time (UTC), and continuing through July

30, 2013, on experimental categorical forecasts of dry

thunderstorm conditions for Days 4 through 8.  Web feedback can

be provided via an NWS customer survey link on the National

Centers for Environmental Prediction (NCEP) Storm Prediction

Center (SPC) webpage:


These products are issued once a day at 2200 UTC for the CONUS



Operationally the SPC already produces daily categorical

forecasts of critical fire weather conditions from dry

thunderstorms for Days 1, 2 and 3; however, federal land

management agency Predictive Services Units, NWS Weather

Forecast Office (WFO) meteorologists and other users in the fire

weather community have expressed interest in using longer range

outlooks of dry thunderstorm critical fire weather areas for

Day 4 through Day 8.


Forecasts of dry thunderstorm critical fire weather areas are

based on areas where a combination of numerous cloud-to-ground

lightning strikes, generally less than one-tenth inch of rain

and dry fuels are forecast.


The SPC Day 4-8 Dry Thunderstorm Fire Weather Outlooks will be

available as National Digital Forecast Database (NDFD) grids,

Redbook Graphics, and online at:


Additional information is available from the online Product

Description Document:


The text Day 3-8 Outlook will also include a discussion of the

individual fire weather areas and conditions.  The AWIPS IDs and

WMO Headers for the Day 3-8 Fire Weather Outlook product suite

remain unchanged.


The WMO Headers for the experimental CONUS Day 4-8 Dry

Thunderstorm NDFD grids from the SPC are;


    Day 4 LDIY41 KWNS

    Day 5 LDIY51 KWNS

    Day 6 LDIY61 KWNS

    Day 7 LDIY71 KWNS

    Day 8 LDIY81 KWNS


After the experimental period, a decision will be made to either

continue testing with no changes, revise the test, or make the

experimental product operational.


For more information, please contact:


    John Ferree

    NWS Severe Storms Services

    Norman, OK  73072



National Public Information Notices are online at: