Weather Background & the National Weather Service
 
 
  • National Weather Service posts its data on-line and provides forecasts, as well
  • There is a great "weather background" web site hosted by the University of Illinois
  • Links to ten "hands on" activities are provided to help better understand barometric pressure, dew point, forecasts, fronts, humidity, pressure systems, weather stations, weather maps, and wind

If you wish to find out more about weather, check out the University of Illinois' "WW2010" website.

They've got great "On-line guides" for:

You can learn A LOT about local weather from the National Weather Service (NWS) Office near you.

National Weather Service Forecast Office  Gray, Maine
  • Aviation Weather
  • Caribou National Weather Service Office
  • Climate Information
  • El Nino Information
  • Express Weather for:
    Augusta Bangor   Bar Harbor   Concord
    Lebanon Lewiston Portsmouth Portland
  • History of the National Weather Service
  • Map of the WFO Gray Service Area
  • Marine Weather
  • ME & NH Weather Information
  • NOAA Weather Radio 
  • Other Links of Interest
  • Our Portland Maine Mirror Site!
  • Pictures:
    Forecast office  Great Ice Storm of '98 Deployment of wx buoy
  • The NWS Severe Weather Spotter
  • Travel Weather 
  • "Watch" vs. "Warning" & Natural Hazard Safety Rules
  • Weather Graphics

Although each NWS office website is unique, many feature similar types of information.

We will visit the NWS Forecast Office in Gray, Maine website to see one example of the types of weather and climate data that are available on-line.

In this topic, we will focus on "Maine (ME) & New Hampshire (NH) Weather Information"

  • "Climate Information" is covered in the previous topic.
  • "Weather Graphics including Radar and Satellite imagery" is addressed in the next topic.

You might decide to visit or move to an area because you like its climate. For day-to-day planning, however, most people are interested in shorter-term weather information.

Go to Maine's NWS Forecast Office top page. Click on the "ME & NH Weather Information" link.

  • You'll have a wide selection of data to choose from (VVV).
Observations & Summaries
Area Forecast Discussion
Climate Data (Daily & Monthly)
Hydro Observer Observations
Coastal Buoy Data
Current Streamflow Data from USGS
Hourly (State Weather Roundup for New England)
Hydrologic Data
Marine Observations from Buoys and Ships
Ski Reports
State Weather Summary for ME & NH
Daily State Temperature and Precipitation Table
"Observations & Summaries" (<<<)
  • Tells you what has been observed recently, what is happening now and what to expect in the next few hours.
Forecasts
Aviation Forecasts
Marine Forecasts
Northeast Travelers Forecast
Short Term Forecast (nowcast)
State Forecast Product
White Mountain Summits Forecast
Zone Forecast Product
Zone Forecast Product by individual county
"Forecasts" (>>>)
  • Predicts the type of conditions to expect in the next few days. There are also specific forecasts for pilots, boaters, travelers, mountain hikers, and skiers.
"Statements and Warnings" (>>>)
  • Gives information, when needed, about potentially hazardous conditions.
Statements and Warnings
Public Information Statements
Special Weather Statements for ME & NH
Watches and Warnings
Current NE River Statements and Warnings

Key to understanding weather is learning about different weather measurements, how these measurements are made, and how they are incorporated into weather maps. To learn about these topics, click on the links to "Hands on" activities.

Once you understand "basic" weather terminology, you might want to check out two good on-line summaries of Maine's weather: the "Area Forecast Discussion" and "State Weather Summary" (both highlighted in the table directly above).

  • The "Area Forecast Discussion" is an informative resource but BE WARNED ... this is written FOR METEOROLOGISTS BY METEOROLOGISTS...
    • ...who study weather, not meteorites!
      • In old Greek, "meteoron" = "astronomical phenomenon" and "meteoros" = "high in the sky"
  • Below is an example from 28-July-98:
    • "STG TSTMS ALG ROOFTOP OF ME ATTM PER SAT AND CBW 88D RADAR. THIS SHUD EXIT REGION NEXT CUPLE HRS AS MOVMNT RPDLY TO THE ENE. OTRW STILL CHC RW/TSTM NRN ME THRU THIS EVNG BFR BTR THREAT OF PCPN LATER TNGT. THE ACTIVITY IN NRN ME EXTNDS SSW THRU ME /BACK EDGE MLT TO AUG/ WITH THIS ACTIVITY EXPTD TO MOV THRU DOWNEAST ME THRU THIS EVNG WHERE CHC WL ALSO BE INCLUDED IN ZNS. OTRW FAIR WX THIS EVNG ACRS FA AS CU DSPTS WITH SUNSET."
    • "MDLS BRG NEXT SHORT WAVE RPDLY INTO FA ON STG WESTERLIES WITH BEST CHC FOR SHWRS/TSTMS NRN ME AND LOWEST POPS OVR MORE SRN ZNS. TIMING BRGS PCPN IN LATE TNGT THEN TAILS OFF WED MRNG...BUT WITH CDFNT LAGGING BHD THREAT FOR PCPN CONTS THRU WED /AND INTO WED EVNG FOR MORE NRN ZNS OF ME/NH/. OTRW WED NGT BCMS P/CLDY OR M/CLR. MIX CLDS/SUN ON THU WITH CHC AFTN RW/TSTMS WITH ANOTHER 500 MB IMPULSE MOVG THRU THE WESTERLIES."

This is the "State Weather Summary" for the same date:

  • "A WEAK AND DISSIPATING COLD FRONT MOVED THROUGH MAINE AND NEW HAMPSHIRE TODAY PRECEDED BY LOTS OF WARM AND MODERATELY HUMID AIR. THE FRONT TOUCHED OFF A FEW THUNDERSTORMS IN NORTHERN AND CENTRAL MAINE DURING THE AFTERNOON BUT OTHERWISE THERE WAS JUST A LOT OF HAZY SUNSHINE ACROSS THE TWO STATES WITH TEMPERATURES GETTING INTO THE 70S AND LOW TO MID 80S. SOUTH TO SOUTHWEST WINDS WERE ALSO BRISK AND GUSTY SO THE COOLEST TEMPERATURES OCCURRED ALONG THE DOWNEAST MAINE COAST."
  • "TONIGHT THE SOUTHWEST FLOW WILL CONTINUE ACROSS THE NORTHEAST GIVING US GENERALLY FAIR MILD WEATHER FOR THE FIRST HALF OF THE NIGHT. AFTER MIDNIGHT... HOWEVER... ANOTHER COLD FRONT APPROACHING FROM THE WEST WILL BRING CLOUDS AND A THREAT OF SHOWERS AND THUNDERSTORMS BACK TO THE TWO STATES. THAT ACTIVITY WILL THEN LINGER IN MANY AREAS THROUGHOUT THE DAY WEDNESDAY AS THE FRONT MOVES SLOWLY EAST THROUGH THE REGION."
  • "ON WEDNESDAY NIGHT SOMEHWHAT DRIER AIR WILL FILTER INTO MAINE AND NEW HAMPSHIRE AS THE FRONT MOVES AWAY OUT TO SEA. THAT WILL CLEAR OUT WHAT/S LEFT OF THE CLOUDS AND SHOWERS BY MORNING LEAVING US WITH A COOLER AND LESS HUMID DAY ON THURSDAY WITH JUST A CHANCE OF A FEW LATE DAY SHOWERS OR THUNDERSTORMS."
  • To understand their data, you must learn the terminology that meteorologists use to describe weather and weather measurements
  1. Compare the "Area Forecast Discussion" with the "State Weather Summary" for 28-July-98 (above, ^^^).
    • Does reading the "Summary" make understanding the "Discussion" easier?
    • Can you guess why meteorologists might prefer to communicate with each other using the "Discussion" format?
  2. See how much you learned about the meteorlogist "shorthand" by reading TODAY'S "Area Forecast Discussion" for Maine:
    • Visit Maine's NWS Forecast Office site.
    • Click on "ME & NH Weather Information".
    • Click on "Area Forecast Discussion" within "Observations & Summaries"
      • Write down your interpretation of their text.
      • Read it aloud to others who have seen today's "State Weather Summary" which is available at the same webpage.
        • How well did you interpret the meteorologist's observations?
    • Check out your local NWS Forecast Office website. Begin at the NWS Offices for the U.S. "clickable map"
      • Do they feature both "Area Forecast Discussions" and "State Weather Summaries"?
        • If so, read and interpret their "Area Forecast Discussion."
        • Check their "State Weather Summary" to see if you have interpreted it correctly.
  3. Click here to see a movie (903 K in size) about people whose jobs are made easier by weather station information.
    • Can you think of other professions that benefit from reliable weather forecasting?
  • barometric
  • climate
  • forecast
  • fronts
  • meteorology
  • pressure systems
  • terminology