Forecast models

1. 1Open the sidebar with Edit on the toolbar, or press F1.
2. 2On Select Data, click Model in the data type filter and click a bundle to load it.
3. 3Click the model name near the top of the sidebar to open the model menu.
4. 4Click a category, such as Global or Mesoscale, then click a model.
5. 5Pick a run in the run menu next to it.

1. 1Click the model name near the top of the sidebar.
2. 2Type a name, model id or category in Search models....
3. 3Check the dot next to each result. Green means the model has all of your bundle’s layers, yellow some and red none.
4. 4Click a result to switch the panel to that model.

1. 1Click the Edit Layers tab in the sidebar.
2. 2Click Add Layer.
3. 3Click Model, then a category, then a field.
4. 4Or type part of the name in Search variables... and click the result.

A bundle holds up to 8 data layers.

1. 1Load a model bundle and move the time bar to the valid time you want.
2. 2Open the view mode menu that reads Forecast, next to the run menu, and choose Trend.
3. 3Drag the time bar, or use its step buttons, to move from run to run.
4. 4For Compare, choose Compare in the same menu.
5. 5Tick at least two models in Compare Models and click Start Comparison.
6. 6Move the time bar to step from model to model. Choose Forecast to go back.

1. 1Click the model name near the top of the sidebar.
2. 2Click Mesoscale.
3. 3Pick a model. US models are under USA, the sub-hourly HRRR and RRFS under Sub-Hourly, and European models under European.

Free includes HRRR, HRRR Sub-Hour, RRFS A, RRFS Sub-Hour, RRFS NA and NAM 3km CONUS.

1. 1Click the model name near the top of the sidebar.
2. 2Click Global for worldwide models or Regional for limited-area models.
3. 3Pick a model, then a run.

Free includes GFS, NAVGEM, NAM, RAP, ICON-EU and ARPEGE EU. ECMWF, ICON, UKMET and GDPS need Enthusiast or higher.

1. 1Click the model name near the top of the sidebar.
2. 2Click AI.
3. 3Pick a single-run model under Global or an ensemble under Ensemble.

AI GFS, AI GEFS and Hybrid GEFS are on the Free plan. The other AI models need Enthusiast or higher.

1. 1Click the model name near the top of the sidebar.
2. 2Click Ensemble. Global ensembles are under Global, and short-range ones such as HREF and REFS under Mesoscale.
3. 3Pick an ensemble and a run.
4. 4On Edit Layers, click Add Layer to add its fields, such as spread and probability products.

GEFS, GEPS and REFS are on the Free plan.

1. 1For the NBM, click the model name near the top of the sidebar, click Ensemble and pick NBM.
2. 2For NDFD, click NDFD in the data type filter on Select Data.
3. 3Click an NDFD bundle to load it.
4. 4Pick the issuance in the NDFD run menu under the model menu.

The NBM needs Enthusiast or higher.

1. 1Switch the panel to a model with severe fields, such as the HRRR, RRFS or RAP.
2. 2Click the Edit Layers tab, then Add Layer.
3. 3Type a name in Search variables..., such as SHERBE, Violent Tornado, Microburst or Downdraft.
4. 4Click the field to add it.

1. 1Switch the panel to a model with winter fields, such as the HRRR or NAM 3km CONUS.
2. 2Click the Edit Layers tab, then Add Layer.
3. 3Search for FRAM, Precipitation Type, Snow Depth Change or Dendritic.
4. 4Click the field to add it.

1. 1Switch the panel to a model with fire fields, such as the HRRR, NAM, RAP or GFS.
2. 2Click the Edit Layers tab, then Add Layer.
3. 3Search for Windy, Red Flag or Vapor Pressure.
4. 4Click the field to add it.

1. 1Click the Edit Layers tab, then Add Layer.
2. 2Search for Vorticity, Q-Vector, Theta-E Advection or Moisture Transport.
3. 3For isentropic fields, switch to the GFS or NAM and search for a surface, such as 290K.
4. 4Click a field to add it.

1. 1Click the Edit Layers tab, then Add Layer.
2. 2Type Anomaly in Search variables....
3. 3Click a field, such as 2m Temperature Anomaly or MSLP Anomaly.

1. 1Switch the panel to a global model with stratospheric fields, such as the GFS or ECMWF.
2. 2Click the Edit Layers tab, then Add Layer.
3. 3Search for 10mb, 50mb or 100mb.
4. 4Click a height, temperature or wind field to add it.

Stratospheric anomalies are measured against 1990–2019 ERA5.

1. 1Click the model name near the top of the sidebar.
2. 2Click Air Quality and pick a model.
3. 3On Edit Layers, click Add Layer and add a field such as PM2.5.

AQM (AirNow) is on the Free plan.

1. 1Click the model name near the top of the sidebar.
2. 2Click Marine.
3. 3Pick a model under Waves, Storm Surge or Ocean.
4. 4Add a field such as Significant Wave Height or Storm Surge from Add Layer.

GFS Wave is on the Free plan.

1. 1Click the model name near the top of the sidebar.
2. 2Click Climate.
3. 3Pick CFS, CFS Monthly, CanSIPS, NMME or SEAS5, then a run.

CFS Monthly is on the Free plan.