News Alert: Situational Awareness Report 3 May 2017 As of 8:00 AM
Posted: 5/3/2017 9:39:38 AM
Louisiana Business Emergency Operations Center

Situational Awareness Report

3 May 2017

As of 8:00 AM

State EOC Activation Level: CAT (Crisis Action Team)

WebEOC Incident Name: 17-015 Severe Wx and Flooding — Statewide — May03

 

 

Situation:  Another round of potential severe weather is expected today. Heavy rainfall, damaging winds, large hail and tornadoes are will possible. Any areas that were affected by this past weekend’s severe weather may be at risk again. Any damages need to be documented separately from the Severe Weather-Statewide-Apr2930 Incident. Please stay tuned to your local NWS for the latest updates.

 

 

North Louisiana: There is an enhanced risk of severe weather across the area today and tonight southeast of a line from Mineola, TX to Nashville, AR. A slight risk of severe weather exists northwest of this line. Scattered to widespread strong to severe thunderstorms are expected today before a line of strong to severe storms develops and moves across the region ahead of a cold front. Isolated tornadoes, damaging winds and large hail are the primary threats. Total rainfall amounts of 1 to 3 inches are expected. Isolated higher amounts are possible, especially across northern LA. This could lead to localized flooding. Winds will become northwesterly and increase in speed to 15 to 20 mph with gusts near 25 mph late this afternoon and tonight following the passage of the cold front. Therefore, a Lake Wind Advisory is in effect for northwest and northern LA. The severe weather threat will end early Thursday morning. Gusty northwesterly winds will likely persist through much of Thursday.

 

Southwest/ Central Louisiana: Rapid changes with deteriorating weather conditions expected today. The Storm Prediction Center has entire area with an Enhanced Risk of severe thunderstorms, with large hail possible and damaging winds the primary severe weather threat. Moderate risk of excessive rainfall today with rain amounts of 3 to 6 inches are expected across southern LA, with isolated amounts exceeding 8 inches possible. Elsewhere, slight risk of excessive rainfall with rain amounts of 2 to 3 inches are expected with isolated amounts exceeding 5 inches possible across central LA.  Elevated south to southeasterly winds will lead to elevated tides of 1.5 to 2 feet above predicted levels this afternoon and evening. This will result in tidal levels between 3.3 and 3.8 feet MLLW later this afternoon and evening along coastal southern LA. Precipitation is expected to end once the cold front passes, with cooler than normal temperatures expected through Saturday. A warmer trend with no precipitation is expected Sunday through Tuesday.

 

Southeast Louisiana: There is an enhanced risk of severe thunderstorms for all areas through tonight. The main hazards with severe weather will be tornadoes, damaging winds with gusts up to 70 mph and large hail. A Flash Flood Watch is in effect for southern MS and east central LA from 1 PM today through 7 AM Thursday. Total rainfall amounts are expected to be 2 to 4 inches with locally higher amounts possible. Highest risk for severe weather will be this afternoon generally along and south of the I-10 corridor. Tonight, all of the area could see severe weather as a squall line moved through. Small craft advisories are posted starting at midnight tonight through at least Thursday afternoon. 

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