Historical Analog Guidance
Analog Run: 2025121812
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Threat Guidance
NAM F036: 20251218/1200  (valid: 1220/0000)
Updated: 15:47 GMT 18 December 2025
NAM F060: 20251218/1200  (valid: 1221/0000)
Updated: 15:57 GMT 18 December 2025
GFS F084: 20251218/1200  (valid: 1222/0000)
Updated: 17:21 GMT 18 December 2025
GFS F108: 20251218/1200  (valid: 1223/0000)
Updated: 17:48 GMT 18 December 2025
GFS F132: 20251218/1200  (valid: 1224/0000)
Updated: 18:32 GMT 18 December 2025
GFS F156: 20251218/1200  (valid: 1225/0000)
Updated: 18:27 GMT 18 December 2025
For any questions or suggestions regarding the CIPS Historical Analog Webpage please contact slu[dot]cips[at]gmail[dot]com.
The data used in this system has been provided by numerous public sources

Last updated: 18:27 GMT 18 December 2025 · Cooperative Institute for Precipitation Systems · Saint Louis University · slu[dot]cips[at]gmail[dot]com