NWS CR >> WFO Louisville >> Products and Services Guide >> Forecast Products

 Non Precipitation Products (NPW, WWUS73 KLMK)

Non-precipitation phenomena such as high wind, frost, heat, wind chill, and dense fog also affect Kentucky and Southern Indiana, and can be just as hazardous as rain or snow, or thunderstorms or lightning.

Like winter weather events, non-precipitation events often cover large geographic areas, and thus advisories and warnings are issued for relatively large portions of states, rather than individual counties or small groups of counties. Non-precipitation watches are generally not issued. 

Non-precipitation advisories and warnings are typically issued for the first period of the seven day forecast, and can be extended to 24 hours if the event is expected to continue. Advisories are reissued whenever there is a change to the timing, areal extent, or expected weather conditions. The advisory provides important details about the location affected, potential impacts, scientific basis for the advisory, and precautionary statements. 

Non Precipitation products are issued as needed.  The first section may contain an optional headline and synoptic forecast discussion of the weather event.  Thereafter, the product is segmented, with each section having a headline and specific hazards that can be expected.  The order of segments will be:  cancellations, warnings, advisories, and watches.

Product Example >> Current Product
Additional Details About Non Precipitation Events


WWUS45 KSDF 220150
NPWSDF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOUISVILLE KY
945 PM EDT TUE MAY 21 2002

...FROST ADVISORY OVERNIGHT FOR CENTRAL KENTUCKY...

.COLD HIGH PRESSURE WILL MOVE INTO WEST VIRGINIA OVERNIGHT. THIS 
HIGH WILL BRING CLEAR SKIES AND LIGHT WINDS TO THE REGION...THUS
ALLOWING TEMPERATURES TO FALL INTO THE MIDDLE 30S.  FROST IS LIKELY 
TO DEVELOP ACROSS CENTRAL KENTUCKY OVERNIGHT...ESPECIALLY IN LOW 
LYING AND SHELTERED AREAS.

INZ079-KYZ032>043-045>049-054>057-064>067-075>078-081-082-221200-
ADAIR KY-ANDERSON KY-BOURBON KY-BOYLE KY-CASEY KY-CLARK KY-
CLINTON KY-CUMBERLAND KY-FAYETTE KY-FRANKLIN KY-GARRARD KY-GREEN KY-
HARRISON KY-HENRY KY-JEFFERSON IN-JESSAMINE KY-LINCOLN KY-MADISON KY-
MARION KY-MERCER KY-METCALFE KY-MONROE KY-NELSON KY-NICHOLAS KY-
RUSSELL KY-SCOTT KY-SHELBY KY-SPENCER KY-TAYLOR KY-TRIMBLE KY-
WASHINGTON KY-WOODFORD KY-
INCLUDING THE CITIES OF...LEXINGTON...WINCHESTER...VERSAILLES...
STANFORD...SHELBYVILLE...RICHMOND...HARRODSBURG...FRANKFORT...
DANVILLE...CYNTHIANA...COLUMBIA AND BARDSTOWN

...FROST ADVISORY OVERNIGHT FOR CENTRAL KENTUCKY...

CLEAR SKIES AND LIGHT WINDS... COMBINED WITH TEMPERATURES DIPPING 
INTO THE MIDDLE 30S... WILL ALLOW FROST TO DEVELOP ACROSS MUCH OF 
CENTRAL KENTUCKY OVERNIGHT. LOW LYING AND SHELTERED AREAS WILL BE 
MOST SUSCEPTIBLE TO THE FROST. COVER ANY COLD SENSITIVE PLANTS OR 
BRING THEM INSIDE IF POSSIBLE.

$$
 
  Non Precipitation Products Severe Weather Products   Winter Weather Products   Table of Contents   Terminal Aerodrome Forecast   Climate Products Forecast Products  

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.