Help-ROMAN Fire Weather Monitor

ROMAN Fire Weather Monitor

ROMAN has been designed for use by fire weather professionals and others requiring access to current fire weather conditions around the nation. Comments and suggestions for improvement are encouraged and can be sent to mesowest@met.utah.edu.

The Fire Weather Monitor displays those stations and conditions which exceed user-defined thresholds of wind, relative humidity, and precipitation in the selected area for any given time (e.g. current or past time). The Fire Weather Monitoris updated every 10 minutes when displaying current data.

Settings

The user can change the settings as follows:

The number of hours prior to the valid time for which the database will be searched (up to 24 hrs)
network type: RAWS (default), NWS/FAA and RAWS, or all networks
region of interest: GCA, County Warning Area, Fire Weather Zone, or State
Variable Thresholds:
- Sustained wind speed (mph) in excess of
- Gust (mph) in excess of (two thresholds available)
- Relative humidity (RH) less than
- Relative humidity (RH) greater than
- Precipitation rate (inches/ # of hours) in excess of
- To not use one or more of the thresholds, leave the threshold blank

Boolean Operators
- And (default value): Lists stations for which all of the selected thresholds have been exceeded at the same time during the selected time period. If all the conditions are satisfied at a station more than one time, then the most recent observation will be displayed. When the boolean operator And is selected, only one gust and RH threshold are active. For example, if values are entered in both RH options, then only the RH less than value will be used. If the threshold "RH less than" is left blank and the threshold "RH greater than" has a value entered, then the latter threshold will be used.
- Or: Lists all the stations that have exceeded the threshold value for each variable individually during the selected time period. The stations will be listed in descending order of severity for each variable. For each station, only the most extreme value that occurred in the time period will be listed.

Time

The user can view extreme fire weather conditions in the past by entering an hour, day, month, and year and clicking on "Change Time". Doing this will:

change the title to "Historic Fire Weather Monitor"
make appear a link that will reset the Fire Weather Monitor back to the current time
change the links to the Station Weather Display such that data from the past period will be displayed

Other Help Pages

Current Status
Main Help
Surface Data Plots
Station Location Maps
Station Weather Display
Current Weather Summary
Fire Weather 24-Hour Trend Monitor
24-Hour Trend Monitor (point of interest)
Fire Weather Monitor
Max/Min Summaries
Precipitation Monitor
Precipitation Summary
Weather Near Fires
GCA Active Fires Maps
Quick Links
Quality Control
Printing Help

MesoWest Department of Meteorology