Displays active weather warnings, watches and advisories.
WWDISP map frame [keywords]
svr toroutl svroutl win winoutl snoadv bliz blizoutl fldwarn fldwatch
winter weather advisories
severe thunderstorm and tornado watch numbers to plot; watches are plotted only if they are active during the time period specified with the DAY and TIME keywords; you cannot use WATCH with the TYPE keyword (default=all active watches during time period specified with DAY and TIME)
If both watches and warnings are active, the watches are plotted before the warnings, regardless of which were issued first. The map is drawn after all the watches and warnings are plotted.
Severe thunderstorm and tornado watches are drawn as either a box or county outlines. If you use PLOT=NBOX (the default), the watch number is plotted in the center of each box. The number begins with a T, indicating tornado, or an S, indicating severe thunderstorm. Winter storm warnings are always plotted as zone outlines.
Watches are outlined in the tor, svr and win colors specified with the COLOR keyword. Counties and zones under a warning are filled with the tor, svr, win and bliz colors using the shading specified with the FILL keyword, and are outlined with the toroutl, svroutl, winoutl and blizoutl colors specified in the COLOR keyword. Flood/flash flood watches and warnings, and snow advisories are filled with the fldwatch, fldwarn and snoadv colors in a hatch pattern unless FILL=NONE is specified.
If you specify a range with the DAY and TIME keywords, any bulletins active during the range are plotted. For example, DAY=185 187 TIME=21 3 specifies a window from 21:00 UTC on day 185 through 03:00 UTC on day 187. If you specify a single day and time, bulletins active at that day and time are plotted. The default is the current day and time.
Canceled severe thunderstorm and tornado watches are considered expired and are not displayed. Canceled warnings and winter storm watches are displayed until the original expiration time has passed.
The National Weather Service redefined winter weather bulletins beginning 09 September 2008 (NWS SCN08-40) such that Snow Advisories (TYPE=SNOWADV) are no longer issued; Winter Weather Advisories (TYPE=WINADV) were expanded to include snow, blowing snow, and sleet; and Winter Storm Warnings (TYPE=WINWARN) were expanded to include heavy snow and sleet. The TYPE=SNOWADV option was left in this command so it's valid when using archive data.
This entry plots all active severe thunderstorm watches and warnings, tornado watches and warnings, winter storm watches and warnings, flood/flash flood watches and warnings, blizzard warnings, and snow advisories on the current frame. No map is drawn; the current frame's navigation is used.
WWDISP USA 4 TYPE=TORWATCH TORWARN
This entry plots all active tornado watches and warnings on a map of the United States on frame 4.
WWDISP TX COLOR=5 4 6 6 TYPE=SEVWATCH SEVWARN TORWATCH TORWARN
This entry plots all active severe thunderstorm and tornado watches and warnings on a map of Texas on the current frame. The tornado watches and warnings are plotted in graphics color level 5. The severe thunderstorm watches and warnings are plotted in graphics color level 4. The outlines of counties with warnings are displayed in graphics color level 6.
WWDISP MID WATCH=490 492 PLOT=COUNTY
This entry plots severe thunderstorm or tornado watches 490, 491 and 492 as county outlines on a map of the Midwest. The watches are plotted only if they are currently active. If they are no longer active, you must use the DAY and TIME keywords to specify the day and time when they were active.
WWDISP USA DAY=2003115 2003119 TIME=0 23:59
This entry plots all severe thunderstorm watches and warnings, tornado watches and warnings, winter storm watches and warnings, flood/flash flood watches and warnings, blizzard warnings, and snow advisories that were active on days 2003115 through 2003119 on a map of the United States.
IMGDISP GOES8/VIS BAND=1 STA=KBUF REFRESH='MAP VH'
WWDISP NAV=C DAY=1998361 TIME=18 23:59 TYPE=WINWARN BLIZZARD FILL=TRAN 6
The first entry displays the most recent image in dataset GOES8/VIS on the current frame with Buffalo, New York, at the center, and includes a high-resolution map. The second entry uses the image's navigation to plot all winter storm and blizzard warnings active between 18 and 23:59 UTC on day 1998361. Every sixth pixel in the zones under a warning is filled, producing a transparent effect that allows most of the satellite image to be seen.