Alert archive / Alabama / Heat Advisories in 2021
Heat Advisory 1, NWS Mobile, AL
NWS Mobile, AL issued this heat advisory at Jul 28, 2021, 2:13 AM CDT for 10 counties in Alabama; 5 counties in Mississippi. It took effect at Jul 28, 2021, 10:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Jul 28, 2021, 2:13 AM CDT (07:13 UTC)
- In effect from
- Jul 28, 2021, 10:00 AM CDT
- Expired
- Jul 28, 2021, 6:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Mobile, AL
Counties Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 96 km from the middle of the area, began a volume at 07:15 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 7.2 hours before the alert went out and 215 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 144 J/kg
- Mixed-layer CIN
- -238 J/kg
- Mixed-layer LCL
- 1293 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- -16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
058 WWUS74 KMOB 280713 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 213 AM CDT Wed Jul 28 2021 ALZ051>060-MSZ067-075-076-078-079-281600- /O.NEW.KMOB.HT.Y.0001.210728T1500Z-210728T2300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Escambia-Covington-Wayne-Perry-Greene-Stone-George- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, Brewton, Flomaton, Andalusia, Opp, Waynesboro, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 213 AM CDT Wed Jul 28 2021 ...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CDT THIS EVENING... * WHAT...Heat index values around 108 expected. * WHERE...Portions of south central and southwest Alabama and southeast Mississippi. * WHEN...From 10 AM this morning to 6 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
2 follow-up statements
946 WWUS74 KMOB 281508 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 1008 AM CDT Wed Jul 28 2021 ALZ051>060-MSZ067-075-076-078-079-282300- /O.CON.KMOB.HT.Y.0001.000000T0000Z-210728T2300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Escambia-Covington-Wayne-Perry-Greene-Stone-George- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, Brewton, Flomaton, Andalusia, Opp, Waynesboro, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 1008 AM CDT Wed Jul 28 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING... * WHAT...Heat index values around 108 expected. * WHERE...Portions of south central and southwest Alabama and southeast Mississippi. * WHEN...From 10 AM this morning to 6 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
804 WWUS74 KMOB 281846 NPWMOB URGENT - WEATHER MESSAGE National Weather Service Mobile AL 146 PM CDT Wed Jul 28 2021 ALZ051>060-MSZ067-075-076-078-079-290400- /O.NEW.KMOB.HT.Y.0002.210729T1500Z-210729T2300Z/ /O.NEW.KMOB.HT.Y.0003.210730T1500Z-210730T2300Z/ /O.CON.KMOB.HT.Y.0001.000000T0000Z-210728T2300Z/ Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw- Escambia-Covington-Wayne-Perry-Greene-Stone-George- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, Brewton, Flomaton, Andalusia, Opp, Waynesboro, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 146 PM CDT Wed Jul 28 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 6 PM CDT THURSDAY... ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 6 PM CDT FRIDAY... * WHAT...For the first Heat Advisory, heat index values up to 108. For the second Heat Advisory, heat index values up to 111 expected. For the third Heat Advisory, heat index values up to 112 expected. * WHERE...Portions of south central and southwest Alabama and southeast Mississippi. * WHEN...For the first Heat Advisory, until 6 PM CDT this evening. For the second Heat Advisory, from 10 AM to 6 PM CDT Thursday. For the third Heat Advisory, from 10 AM to 6 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS...Temperatures in the middle to upper 90's with isolated spots reaching 100 degrees inland are expected Thursday and Friday. This combined with high humidity will result in dangerous heat indices exceeding 108 degrees each day. The heat continues into Saturday, and will likely warrant another heat advisory for heat indices exceeding 108 degrees. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ALZ261>266-FLZ201>206-290400- /O.NEW.KMOB.HT.Y.0002.210729T1500Z-210729T2300Z/ /O.NEW.KMOB.HT.Y.0003.210730T1500Z-210730T2300Z/ Mobile Inland-Baldwin Inland-Mobile Central-Baldwin Central- Mobile Coastal-Baldwin Coastal-Escambia Inland-Escambia Coastal- Santa Rosa Inland-Santa Rosa Coastal-Okaloosa Inland- Okaloosa Coastal- Including the cities of Citronelle, Saraland, Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Century, Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, Niceville, Seminole, Valparaiso, and Wright 146 PM CDT Wed Jul 28 2021 ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 6 PM CDT THURSDAY... ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 6 PM CDT FRIDAY... * WHAT...For the first Heat Advisory, heat index values up to 109 expected. For the second Heat Advisory, heat index values up to 112 expected. * WHERE...Portions of southwest Alabama and northwest Florida. * WHEN...For the first Heat Advisory, from 10 AM to 6 PM CDT Thursday. For the second Heat Advisory, from 10 AM to 6 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS...Temperatures in the middle to upper 90's are expected Thursday and Friday. This combined with high humidity will result in dangerous heat indices exceeding 108 degrees each day. The heat continues into Saturday, and will likely warrant another heat advisory for heat indices exceeding 108 degrees. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 8:06 PM CDT | Special Weather Statement | MOB | Choctaw | 39 min |
| Jul 27, 8:26 PM CDT | Areal Flood Advisory | MOB | Choctaw | 3 hr |
| Jul 27, 9:49 PM CDT | Special Weather Statement | MOB | Washington | 41 min |
| Jul 27, 10:12 PM CDT | Areal Flood Advisory | MOB | Mobile, Washington | 3 hr |
| Jul 28, 1:46 PM CDT | Heat Advisory | MOB | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more | 44 hr |
| Jul 28, 1:46 PM CDT | Heat Advisory | MOB | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more | 4 days |
| Jul 28, 4:37 PM CDT | Special Weather Statement | MOB | Covington | 38 min |
| Jul 28, 5:16 PM CDT | Areal Flood Advisory | MOB | Covington | 3 hr |
| Jul 28, 5:16 PM CDT | Special Weather Statement | MOB | Covington | 44 min |
| Jul 28, 5:29 PM CDT | Areal Flood Advisory | MOB | Conecuh, Covington | 3 hr |
| Jul 28, 5:34 PM CDT | Special Weather Statement | MOB | Mobile | 41 min |
| Jul 28, 5:39 PM CDT | Areal Flood Advisory | MOB | Covington, Escambia | 3 hr |
| Jul 28, 6:24 PM CDT | Special Weather Statement | MOB | Escambia | 51 min |
| Jul 28, 6:26 PM CDT | Special Weather Statement | MOB | Baldwin | 49 min |
| Jul 28, 6:48 PM CDT | Areal Flood Advisory | MOB | Escambia | 3 hr |
| Jul 28, 6:54 PM CDT | Special Weather Statement | MOB | Escambia | 51 min |
| Jul 27, 11:00 PM CDT | Special Weather Statement | MOB | Greene | 45 min |
| Jul 27, 11:21 PM CDT | Areal Flood Advisory | MOB | Greene, Perry, Wayne | 3 hr |
| Jul 27, 11:48 PM CDT | Special Weather Statement | MOB | George, Perry | 57 min |
| Jul 28, 5:56 PM CDT | Special Weather Statement | MOB | Perry | 34 min |
Nearby
Heat Advisories in Alabama, 2021Heat Advisories in Mississippi, 2021Every heat advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.