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Welcome to the Vegetation Impact Program

The Vegetation Impact Program (VIP) is a monitoring, assessment, and networking program hosted by the Midwestern Regional Climate Center. The VIP integrates online climate monitoring information and stakeholder input to provide a suite of resources that can help minimize negative vegetation impacts, mitigate climate variability effects, and develop adaptation plans to better prepare for extreme and ever-changing environmental conditions.

Freeze Guidance

  Current Guidance Map
Current VIP Vegetation Status
  VIP Participants - Login Required

Submit Guidance/Impact Form
View All Guidance Submissions
View All Impact Reports
Access VIP Member List

Interested in Submitting Freeze Guidance Reports?

Join Freeze Guidance
About Freeze Guidance

Tools & Products

Freeze Guidance Maps Freeze Maps: View the Freeze Maps dashboard to monitor current season freezes, growing degree days, vegetation status, and freeze climatologies.
Freeze Probabilities Freeze Probabilities: View the likelihood of the temperature dropping to freezing or below freezing - which constitutes a "freeze event".
Freeze Date Tool Freeze Date Tool: Access climatologies of freezing temperature dates across the north-central and northeastern US.
End of Season Summaries End of Season Summaries: Access end of season summaries for days of first and last freezes for 32°F and 28°F thresholds and lowest minimum temperatures.
Custom Chilling Hours ToolCustom Chilling Hours Tool:  Track chilling hour accumulations for locations across the United States using customized temperature thresholds and time periods.
Chilling Hours MapsChilling Hours:  Maps of accumulated chilling hours and chilling hours departure have been developed for growers to monitor the number of chilling hours over a dormant season based upon popular chilling temperature ranges.
Keetch-Byram Drought Index MapsKeetch Byram Drought Index:  Keetch-Bryam Drought Index (KBDI) is one of the few daily indices used to monitor drought, and is most often utilized in the wildfire community, for it can give a real-time indication of the drying potential for the finer fuels such as grasses and shrubs.
Stress Degree Day MapsStress Degree Days: All plants have an optimum range of temperatures for growth and Stress Degree Days (SDD) are a way of tracking how much stress a type of plant has been subjected to within its growing season.

GIS Interactive Products - Currently Under Construction

GIS Spring Freeze Map GIS Freeze Maps Interface: Interact with GIS maps of guidance maps, impact reports, lowest minimum temperatures, most recent freeze maps, National Phenology Network Extended Spring Indices, growing degree days and freeze climatologies.
Hours at or below freezing GIS Hours at or Below Freezing: View the greatest number of consecutive hours at or below freezing within the last 24 hours, 7 days and 30 days in this interactive GIS tool.
GIS version of Chilling Hours, Keetch-Byram Drought Index and Stress Degree Days mapsGIS Vegetation Climate Map:  This GIS version contains the Chilling Hours, Keetch-Byram Drought Index, and Stress Degree Days maps, all in one GIS interface.