Hard Freeze for Hancock County
February 14, 2021 at 4:00 PM
WEATHER REPORT:
HANCOCK COUNTY BOARD OF SUPERVISORS, MAYOR OF BAY ST. LOUIS, MAYOR OF WAVELAND, MAYOR OF DIAMONDHEAD, DIAMONDHEAD CITY MANAGER, HANCOCK COUNTY SHERIFF, BSL POLICE AND FIRE CHIEF, WAVELAND POLICE AND FIRE CHIEF, DIAMONDHEAD FIRE, VOLUNTEER FIRE DEPARTMENTS, AIRPORT, PORT AND HARBOR.
Here are the slides that were used during the 2pm webinar.
Changes from previous update:
No significant changes from this morning's update.
Overview:
WHAT: Accumulating ice (freezing rain) and possibly sleet; followed by frigid cold.
WHEN: Accumulating ice/sleet is most likely late tonight through Monday. The coldest night this week will be Monday Night. Freezing Rain will begin in the northwestern parishes/counties shortly after midnight and spread east-southeast.
WHERE: Accumulating ice is most likely across the northwestern half of the area. A Hard Freeze is likely for the entire area away from the immediate SE LA coast.
CONFIDENCE:
We are very confident there will be ice accumulation in northwestern portions of the forecast area. Confidence in accumulation drops significantly the farther southeast a location is. We are less confident in how much of the ice will be in the form of freezing rain vs sleet.
We are very confident in the occurrence of very cold temperatures Monday night/Tuesday morning.
Potential Impacts:
Ice and Snow Accumulation:
Ice accumulation in excess of 0.25" is currently forecast across northwestern areas. Ice accumulation drops off as you move southeast.
Up to 0.5" of sleet accumulation is also possible across portions of the area Accumulation of ice and sleet will result in dangerous travel conditions Monday morning and Tuesday morning. Any remaining liquid Monday night will freeze with the cold temperatures Icy conditions could linger through Tuesday night/Wednesday morning as temperatures across northwestern areas struggle to rise above freezing during the day Tuesday. Hancock County is not currently under any Ice or Snow watches and/or Warnings, however the National Weather Service Slidell Office has put us in the following Percentage of receiving Glazing of Ice:
The Majority of the County is in a 30% to 40% chance of getting a 100 of an inch Glazing of Ice
The more Northern portion of the County that borders Pearl River County is under a 60% chance of getting a 100 of an inch Glazing of Ice.
Freeze/Hard Freeze:
Hard freeze conditions are expected nearly the entire area. Hard freeze conditions could result in significant damage to unprotected pipes as well as citrus and other sensitive agricultural crops. Hard freeze conditions and wind chills in the lower teens will be especially dangerous to people who may not have a way to warm their homes due to power outages Hancock County is under Hard Freeze Watch at this time and should upgraded no later than early in the morning to a Hard Freeze Warning. Hancock County is under A Wind Chill Watch at this time and should be upgraded no later than early in the morning to a Wind Chill Warning. Depending on when the rain ends tomorrow and if it has time to dry out before we go at or below freezing we may see icing on the bridges and road ways that hold water.
Emergency Operations Center:
At this time unless we go under any Sleet/Ice/Snow Warnings in the morning, we will not be manning the Office until late afternoon.
We will be out monitoring the conditions of the Road soon as the temperature goes below freezing.
Timing of Freezing Temperatures Monday, February 14, 2020
5:00 AM:
Temperature is at 37 Degrees
Wind chill is at at 32 Degrees
8:00 AM:
Temperature is at 37 Degrees
Wind chill is at at 30 Degrees
11:00 AM:
Temperature is at 36 Degrees
Wind chill is at at 29 Degrees
2:00 PM:
Temperature is at 35 Degrees
Wind chill is at at 29 Degrees
5:00 PM
Temperature is at 33 Degrees
Wind chill is at at 25 Degrees
8:00 PM
Temperature is at 28 Degrees
Wind chill is at at 17 Degrees
11:00 PM
Temperature is at 24 Degrees
Wind chill is at at 14 Degrees
2:00 AM
Temperature is at 21 Degrees
Wind chill is at at 12 Degrees
5:00 AM
Temperature is at 19 Degrees
Wind chill is at at 11 Degrees
Brian T. Adam, Hancock County EMA Director
