Lexington, Massachusetts, USA
Issued by the National Weather Service - New Orleans/Baton Rouge
Areas Affected: Pointe Coupee; West Feliciana; East Feliciana; St. Helena; Washington; Iberville; West Baton Rouge; East Baton Rouge; Assumption; St. James; St. John The Baptist; Upper Lafourche; St. Charles; Upper St. Bernard; Upper Terrebonne; Lower Terrebonne; Lower Lafourche; Coastal Jefferson; Lower Plaquemines; Lower St. Bernard; Northern Tangipahoa; Southeast St. Tammany; Western Orleans; Eastern Orleans; Northern St. Tammany; Southwestern St. Tammany; Central Tangipahoa; Lower Tangipahoa; Northern Livingston; Southern Livingston; Western Ascension; Eastern Ascension; Upper Jefferson; Lower Jefferson; Upper Plaquemines; Central Plaquemines; Wilkinson; Amite; Pike; Walthall; Pearl River; Northern Hancock; Northern Harrison; Northern Jackson; Southern Hancock; Southern Harrison; Southern Jackson
Urgency: Expected
Severity: Moderate
Certainty: Observed
Alert Sent: Sunday 2:22pm CST
Alert Effective: Sunday 2:22pm CST
Alert Expires: Monday 6:00am CST
Event Onset: Sunday 2:22pm CST
Issued by: NWS New Orleans LA
...EXTREMELY COLD TEMPERATURES WILL IMPACT THE AREA TONIGHT AND TOMORROW MORNING... Extremely cold temperatures that are well below freezing will be in place for several hours tonight into tomorrow morning. Lows will fall into the upper teens and lower 20s north of the I-10 corridor and the mid 20s south of the I-10 corridor for several hours tonight. Wind chills will fall into the single digits north of the I-10 corridor and the teens south of the I-10 corridor late tonight into tomorrow morning. These extremely cold temperatures are the primary threat for tonight into tomorrow morning. A secondary and much less likely concern will be any black ice forming on elevated roadways. Rainfall will be coming to an end on the Mississippi and Louisiana coasts by 4 PM. Strong northwest winds of 15 to 20 mph with gusts to 25 mph will help to dry off the roads before the below freezing temperatures set in. However, areas north and west of a Baton Rouge to Greensburg to McComb line saw freezing rain occur earlier today. This is the only area where ice will continue to be a concern on elevated roadways and bridges through tomorrow morning. A review of soil temperature observations indicate that ground temperatures reported in the area remain in the upper 50s and lower 60s this afternoon, so even in areas that experienced freezing rain today there was no ice accumulation on the ground or non-elevated roadways. The bottom line is that for areas including metro New Orleans, southern and eastern parts of metro Baton Rouge, the Northshore, coastal Mississippi, and coastal Louisiana, black ice is not a major concern given the expected dry road conditions and warm ground temperatures. For northern metro Baton Rouge and areas of southwest Mississippi to the west of I-55, lingering ice will be a concern on elevated roadways and bridges through tomorrow morning.
ID: urn:oid:2.49.0.1.840.0.3630ab8c377c81b2242b2b3dfd6709b94aad495b.001.1 Codes: LAZ034, LAZ035, LAZ036, LAZ037, LAZ039, LAZ046, LAZ047, LAZ048, LAZ056, LAZ057, LAZ058, LAZ059, LAZ060, LAZ064, LAZ065, LAZ066, LAZ067, LAZ068, LAZ069, LAZ070, LAZ071, LAZ076, LAZ077, LAZ078, LAZ079, LAZ080, LAZ081, LAZ082, LAZ083, LAZ084, LAZ085, LAZ086, LAZ087, LAZ088, LAZ089, LAZ090, MSZ068, MSZ069, MSZ070, MSZ071, MSZ077, MSZ083, MSZ084, MSZ085, MSZ086, MSZ087, MSZ088 Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3630ab8c377c81b2242b2b3dfd6709b94aad495b.001.1