Meteorological Variables
"Severe" Weather @ Hanford
HMS Facts
Upgrades!
Weather safety
100
This variable is measured with a barometer
What is pressure?
100
This type of severe weather is rated on a scale of EF1 to EF5.
What is a tornado?
100
HMS currently has this many full-time forecasters.
What is 3?
100
This new instrument allows HMS forecasters to detect poor visibility (due to fog or haze) and precipitation type remotely.
What is Present Weather Sensor?
100
HMS issues warning from this instrument to help prevent heat exhaustion and heat stroke. (Brownie points for the full name, not just abbreviation)
What is Wet Bulb Global Temperature (WBGT)?
200
This variable usually has units of knots.
What is wind speed?
200
HMS issues warnings when lightning is this far from the site?
What is 50 miles?
200
HMS's two tallest towers are this high.
What is 400 ft and 200 ft?
200
OSI Pi is a type of this, which HMS is adding to its capabilities in the coming weeks.
What is a database?
200
The 30/30 rule is designed to keep you safe from this weather phenomenon.
What is lightning?
300
This variable is measured with an anemometer.
What is wind?
300
These are responsible for the majority of high wind advisories issued at night on Hanford.
What are drainage winds?
300
622R was originally built in this year.
What is 1965?
300
This type of anemometer, soon to be purchased by HMS, will allow HMS Forecasters to determine the U, V, and W components of the wind.
What is a 3D Sonic Anemometer.
300
Wind gusts above this speed prompt wind advisories across Hanford.
What is 35 mph?
400
Rankine is a scale for which variable?
What is temperature?
400
At this WBGT reading, stop work for most outside work is called.
What is a 87.8?
400
The (First and last) names of all 4 HMS Forecasters.
Who are Matt Eckhoff, Grant Gutierrez, Perry Perrault, and Gary Reinecke?
400
A drop in the vibrational frequency of this instrument can alert HMS forecasters to slick roads during the winter.
What is a freezing rain sensor?
400
Lightning has been known to strike this far away from its parent storm.
What is 25 miles? (This is known as a Bolt from the Blue)
500
This moisture variable must always be lower than temperature. If not...you just broke physics.
What is dew point temperature?
500
The highest wind speed recorded on top of Rattlesnake Mountain in 2015.
What is 115 mph?
500
The hottest temperature ever recorded at HMS
What is 113°F?
500
This instrument allows HMS forecasters to detect the base of any clouds directly overhead, as well as the mixing layer height.
What is a ceilometer?
500
Two ways you can get weather advisories put out by HMS.
What is (E-mail, MSANS, Call HMS, bug Grant)?
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