NWS Special Weather Statement (SPS) Polygons
The IEM attempts to process and archive special weather statements (SPS) This page offers a download of the SPS polygons and some limited associated metadata. Backend documentation exists for those wishing to script against this service.
Related: SPS Search by Point SPS Text Download
Shapefile DBF schema:
Field 0: Type=C/String, Title=`ISSUE', SPS Issuance Timestamp UTC Field 1: Type=C/String, Title=`EXPIRE', SPS Expiration Timestamp UTC Field 2: Type=C/String, Title=`PROD_ID', IEM Text Product Identifier Field 3: Type=C/String, Title=`WFO', 3 Character Issuance WFO Field 4: Type=C/String, Title=`LNDSPOUT', Landspout IBW Tag Field 5: Type=C/String, Title=`WTRSPOUT', Waterspout IBW Tag Field 6: Type=C/String, Title=`MAX_HAIL', Max Hail Size Field 7: Type=C/String, Title=`MAX_WIND', Max Wind Gust Field 8: Type=C/String, Title=`TML_VALD', Time-Motion-Location Timestamp UTC Field 9: Type=N/Double, Title=`TML_DRCT', Time-Motion-Location Storm Motion Field 10: Type=N/Double, Title=`TML_SKNT', Time-Motion-Location Storm Speed kt
Archive / Usage Notes:
- Presently, only those SPS products with a polygon are returned.