How do I join NWSChat?
In order to gain access to NWSChat, your account request must be approved by a National Weather Service Weather Forecast Office or Center. Select the office you plan to communicate with based upon your location and role from the list below. Once approved, you will be able to chat with other offices/centers as needed.
What is NWS chat?
Online ChatNational Weather Service / Customer service chat
What is a Weather Ready Nation Ambassador?
The Weather-Ready Nation Ambassador™ initiative is the National Oceanic and Atmospheric Administration’s (NOAA) effort to formally recognize NOAA partners who are improving the nation’s readiness, responsiveness, and overall resilience against extreme weather, water, and climate events.
What does NWS mean in weather?
National Weather Service
Glossary – NOAA’s National Weather Service.
What does TX mean on a weather station?
(a) Step Test – Maximum (Tx), minimum (Tn) and mean temperature (Tm). (b) Step Test – Maximum (RHx), minimum (RHn) and mean relative humidity (RHm). Source publication.
What does QP mean in weather?
Probabilistic Quantitative Precipitation Forecasting
Probabilistic Quantitative Precipitation Forecasting
These QPFs can also be produced for snowfall amounts by converting the anticipated precipitation from liquid to the snow equivalent, using the appropriate snow to water ratio, such as 10 inches snow for 1 inch water.
Why is weather called WX?
The “WX” arose from the Morse code prosign shorthand for weather reports (WX) combined with the order number that the seven frequencies were adopted for use nationally.
What does VR5 mean for wind?
VR5
| Acronym | Definition |
|---|---|
| VR5 | Variable Region 5 |
What does WPC mean in weather?
The Weather Prediction Center (WPC) provides forecast, guidance, and analysis products and services to support the daily public forecasting activities of the NWS and its customers, and provides tailored support to other government agencies in emergency and special situations.
What does P mean in a Metar?
P. indicates greater than the highest reportable value. PCPN. precipitation.
What does VR mean in wind speed?
A wind direction of VR indicates a variable wind direction during the hour. Wind chill: the wind chill for the following hour. If there are no wind chill values to display for the entire 24 hour period, this column will not appear.
What does 9999 mean in METAR?
The largest reportable metric value is. 9999. This value represents a visibility greater than 9000. meters (7 SM or more). The contraction CAVOK (ceiling and visibility OK) may be used when there is no significant weather, the visibility is 10 km or greater, and the ceilings are greater than 5,000 ft.
What does M mean on METAR?
An M in front of the number indicates that the temperature/dew point is below zero Celsius. Q1020 indicates the current altimeter setting (in QNH) is 1,020 hPa (30.12 inHg). NOSIG is an example of a TREND forecast which is appended to METARs at stations while a forecaster is on watch.
What does 20 foot winds mean?
20ft Winds
Is defined as sustained winds averaged over a 10 minute period and measured 20 feet above the average height of nearby vegetation. This is the standard reported by the Remote Automated Weather Stations(RAWS) owned by land management agencies and used in the National Fire Danger Rating System (NFDRS).
What does 8000 mean on a TAF?
GROUP 4: Visibility, Weather, and Obstructions to Vision:
| Meters | SM |
|---|---|
| 6,400 | 4 |
| 8,000 | 5 |
| 9,600 | 6 |
| 11,200 | 7 |
What does 9000 mean in a TAF?
This value represents a visibility greater than 9000. meters (7 SM or more). The contraction CAVOK (ceiling and visibility OK) may be used when there is no significant weather, the visibility is 10 km or greater, and the ceilings are greater than 5,000 ft.
What does P mean on METAR?
What wind speed is bad for fires?
2) Wind – Wind speed and direction should be carefully monitored before and during the burn. Wind should be steady from between 4 and 15 miles per hour. Gusty winds and/ or winds shifting greater than 45 degrees should be avoided. Calm conditions (wind speed less than 3 miles per hour) should also be avoided.
What is the maximum wind speed?
Maximum sustained wind
| Category | Wind speeds (for 1-minute maximum sustained winds) | |
|---|---|---|
| Four | 58–70 m/s | 130–156 mph |
| Three | 50–58 m/s | 111–129 mph |
| Two | 43–49 m/s | 96–110 mph |
| One | 33–42 m/s | 74–95 mph |
What does P mean in a METAR?
What is the 8 * * * * Group on a METAR?
If the wind varies 60° or more, the direction will be indicated with a V (e.g. 120V190). Next two digits Mean speed and units (KT=knots, KMH=kilometers per hour, or MPS=meters per second).
…
TAF.
| Icing Intensity | Location | |
|---|---|---|
| 8 | Severe | In cloud |
| 9 | Severe | In precipitation |
What does 9999 mean on a METAR?
The largest reportable metric value is 9999. This value represents a visibility greater than 9000 meters (7 SM or more). To convert visibility values from meters to statute miles see Attachment 3 on page 33 or see Flight Information Handbook conversion tables. 8. METAR.
Can you wind a bonfire at 15 mph?
The Bonfire shall not be ignited if: There is the potential for severe weather (i.e. thunderstorms, intense rain) Steady winds of 15 mph or higher.
Is 10 mph wind too much for fire?
Appropriate wind speeds for burning are I‑10 mph. For grass burning, wind speed should be 5 mph and lower. For brush, wind speeds less than 10 mph are acceptable. Small, hot fires assist in dispersion and produce less smoke.
What’s the strongest wind ever recorded?
Then, at 1:21 pm on April 12, 1934, the extreme value of 231 mph out of the southeast was recorded. This would prove to be the highest natural surface wind velocity ever officially recorded by means of an anemometer, anywhere in the world.