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Heat Advisory

◍ Grenada · USA · updated 9/19/2026, 8:57:00 AM
⏱ In effect until 12:00 PM UTC-5
Severity score
65/100
Confidence
High
Why this matters

* WHAT...Heat index values in excess of 105 degrees expected. * WHERE...Portions of central, east central, north central, southwest, and west central Mississippi. * WHEN...From noon today to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat related illnesses.

Key stats
Severity
Moderate
Certainty
Likely
Urgency
Expected
Severity over time
Timeline
  1. Heat Advisory
    9/19/2026, 8:57:00 AM
    Heat Advisory issued September 19 at 3:57AM CDT until September 19 at 8:00PM CDT by NWS Jackson MS
Sources & attribution
OfficialNWS NWS Jackson MSupdated 9/19/2026, 8:57:00 AM
OfficialNWS NWS San Juan PRupdated 9/19/2026, 6:33:00 AM
⚠This is an informational severity score, not an official warning. Follow guidance from NWS/NOAA, FEMA (ready.gov), and local emergency management.