Special Winter Weather Special Winter Weather BriefingBriefing

April 19, 2023April 19, 2023

www.weather.gov/shv/briefingwww.weather.gov/shv/briefing

Matt HemingwayMatt HemingwayMeteorologistMeteorologist

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

Overview This Evening-Wednesday Morning: This Evening-Wednesday Morning:

Precipitation will begin moving into the region from the west after midnight through Precipitation will begin moving into the region from the west after midnight through the wee hours of the morning.the wee hours of the morning.

Precipitation types will be mixed across the region, generally sleet and snow over Precipitation types will be mixed across the region, generally sleet and snow over the upper part of NE TX and along the I-30 corridor of SW AR. Areas farther north in the upper part of NE TX and along the I-30 corridor of SW AR. Areas farther north in SE OK and adjacent SW AR will likely be all snow.SE OK and adjacent SW AR will likely be all snow.

Along the I-20 corridor and south, a complete mixed big of precipitation will begin Along the I-20 corridor and south, a complete mixed big of precipitation will begin the event. the event.

Through the day on Wednesday:Through the day on Wednesday: Large upper trough will move in from the west and cool our temperatures aloft such Large upper trough will move in from the west and cool our temperatures aloft such

that precipitation should begin transitioning to all snow over most of the region by that precipitation should begin transitioning to all snow over most of the region by mid morning. mid morning.

Areas farther south from Deep East Texas into North Central Louisiana will likely see Areas farther south from Deep East Texas into North Central Louisiana will likely see a sleet/snow mix continue through late morning before transitioning to all snow. a sleet/snow mix continue through late morning before transitioning to all snow.

Accumulations:Accumulations: Winter Storm Warning generally along and north of I-20 means total accumulations of Winter Storm Warning generally along and north of I-20 means total accumulations of

up to a half inch of sleet and/or up to 4 inches of snow.up to a half inch of sleet and/or up to 4 inches of snow. Winter Weather Advisory farther south means total accumulations of less than a Winter Weather Advisory farther south means total accumulations of less than a

quarter inch of freezing rain (ice) and/or 1-3 inches of snow (leaning lower). quarter inch of freezing rain (ice) and/or 1-3 inches of snow (leaning lower).

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

Water Vapor Imagery

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

Upper low shifts eastas moisture increases

Current National MapCurrent National Map

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

6PM Tonight6PM Tonight

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

MidnightMidnight

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

6AM Wednesday6AM Wednesday

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

Lows Wednesday AMLows Wednesday AM

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

Winter Storm WarningWinter Storm Warning

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

Winter Weather AdvisoryWinter Weather Advisory

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

Total Snow/Sleet Total Snow/Sleet AccumulationsAccumulations

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

1-2”

1-2”

2-4”

4-6”

2-4”

6PM Wednesday6PM Wednesday

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana

NEXT CONFERENCE CALL:

www.weather.gov/shv/briefing

Weekly Webinar Weekly Webinar – –

Thursday, Month 26th @ 10 AMThursday, Month 26th @ 10 AM

National Weather Service Shreveport, LouisianaNational Weather Service Shreveport, Louisiana