Fort Worth/Dallas, TX
Weather Forecast Office
Southern Oscillation Index (SOI)
standardized anomaly of the mean sea level pressure difference between Tahiti and Darwin
traditional ENSO index
correlates strongly with SST anomaly indices
NOAA Oceanic Niño Index (ONI)
sea surface temperature anomaly index for Niño 3.4 (5°N to 5°S, 170°W to 120°W)
onset of El Niño declared when Niño 3.4 anomaly exceeds +0.5°C for 3-month period
to be "full-fledged" El Niño (or La Niña), onset conditions must be met for 5 consecutive 3-month periods
Japanese Meteorological Agency ENSO Index (JMA)
sea surface temperature anomaly index for Niño 3 (4°N to 4°S, 150°W to 90°W)
less noisy than traditional SOI and more vigorous than NOAA ONI
anomalies must exceed 0.5°C for 6 consecutive 5-month periods
Multivariate ENSO Index (MEI)
weighted anomaly average of 6 meteorological variables in the tropical Pacific
sea surface temperature
sea level pressure
surface air temperature
components of surface wind
zonal component
meridional component
total cloudiness fraction of the sky
Current Hazards
Submit Storm Report
National Outlooks
Flash Flood Warnings
Storm Reports (Graphical)
Hazardous Weather Outlook
Severe Thunderstorm Warnings
Local Storm Reports
Tornado Warnings
Tropical
Forecasts
Forecast Discussion
Graphical Forecast
Aviation Forecasts
Fire Weather
Hazard Planner
N. Texas Convective Parameters
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Fort Worth/Dallas, TX
3401 Northern Cross Blvd.
Fort Worth, TX 76137
817.429.2631
Comments? Questions? Please Contact Us.
Follow us on X
Follow us on Facebook
Follow us on YouTube
FWD RSS Feed