The IEM has a database archive of WPC Mesoscale Precipitation Discussions since fall 2017. This page offers a shapefile download of these.
Backend DocumentationRelated Services
Shapefile DBF Schema
| Field | Type | Title | Description |
|---|---|---|---|
| 0 | String | ISSUE | UTC Issuance Timestamp YYYYmmddHHMM |
| 1 | String | EXPIRE | UTC MCD Expiration Timestamp |
| 2 | String | PROD_ID | IEM Product ID (see below) |
| 3 | Double | YEAR | YEAR of MCD |
| 4 | Double | NUM | SPC MCD Number |
| 6 | String | CONCERN | WPC MPD concerning heading |
Archive / Usage Notes
API Integration: The
PROD_ID DBF field is a string the IEM uses to identify
NWS Text products and can be used to call an IEM API to fetch the text of
this product: https://mesonet.agron.iastate.edu/api/1/nwstext/{PROD_ID}
SPC Integration: The
YEAR and NUM fields can be used to construct
a stable URL into SPC's website like so: https://www.spc.noaa.gov/products/md/{year}/md{NUM:04i}.html