Alert archive / Florida / Flash Flood Watches in 2021
Flash Flood Watch 13, NWS Mobile, AL
NWS Mobile, AL issued this flash flood watch at Aug 15, 2021, 2:54 AM CDT for Okaloosa County, Santa Rosa County, Florida; Covington County, Crenshaw County, Alabama. It took effect at Aug 15, 2021, 7:00 PM CDT. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2021, 2:54 AM CDT (07:54 UTC)
- In effect from
- Aug 15, 2021, 7:00 PM CDT
- Expired
- Aug 16, 2021, 3:18 PM CDT
- In force
- 20 hr
- Issued by
- NWS Mobile, AL
- Flood severity
- None
Counties Covington County, AL, Crenshaw County, AL, Okaloosa County, FL, Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 86 km from the middle of the area, began a volume at 07:57 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.9 hours before the alert went out and 232 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
- 2007 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1044 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- -42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
668 WGUS64 KMOB 150754 FFAMOB URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mobile AL 254 AM CDT Sun Aug 15 2021 ALZ058-060-FLZ203>206-151600- /O.NEW.KMOB.FF.A.0013.210816T0000Z-210817T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Crenshaw-Covington-Santa Rosa Inland-Santa Rosa Coastal-Okaloosa Inland-Okaloosa Coastal- Including the cities of Niceville, Eglin AFB, Crestview, Opp, Seminole, Jay, Bagdad, Valparaiso, Destin, Wright, Brantley, Gulf Breeze, Fort Walton Beach, Navarre, Andalusia, Luverne, and Milton 254 AM CDT Sun Aug 15 2021 ...FLASH FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH TUESDAY AFTERNOON... The National Weather Service in Mobile has issued a * Flash Flood Watch for Portions of south central Alabama, including the following areas, Covington and Crenshaw. Portions of northwest Florida, including the following areas, Okaloosa Coastal, Okaloosa Inland, Santa Rosa Coastal and Santa Rosa Inland. * From this evening through Tuesday afternoon. * Heavy rainfall associated with Fred is expected to occur Monday through Tuesday along the Western Florida Panhandle and South-central Alabama. Rainfall amounts of 4 to 6 inches with locally higher amounts possible across the Western Florida Panhandle and 3 to 5 inches over South-central Alabama. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Black
5 follow-up statements
055 WGUS64 KMOB 151853 FFAMOB Flood Watch National Weather Service Mobile AL 153 PM CDT Sun Aug 15 2021 ALZ058-060-FLZ203>206-160300- /O.CON.KMOB.FF.A.0013.210816T0000Z-210817T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Crenshaw-Covington-Santa Rosa Inland-Santa Rosa Coastal-Okaloosa Inland-Okaloosa Coastal- Including the cities of Niceville, Eglin AFB, Crestview, Opp, Seminole, Jay, Bagdad, Valparaiso, Destin, Wright, Brantley, Gulf Breeze, Fort Walton Beach, Navarre, Andalusia, Luverne, and Milton 153 PM CDT Sun Aug 15 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH TUESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of south central Alabama, including the following areas, Covington and Crenshaw. Portions of northwest Florida, including the following areas, Okaloosa Coastal, Okaloosa Inland, Santa Rosa Coastal and Santa Rosa Inland. * From 7 PM CDT this evening through Tuesday afternoon. * Heavy rainfall associated with Fred is expected to occur Monday through Tuesday over portions of the western Florida panhandle and south central Alabama. Rainfall amounts of 3 to 6 inches with locally higher amounts are possible across portions of the western Florida panhandle with 2 to 4 inches over portions of south central Alabama. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ DRE
703 WGUS64 KMOB 160223 FFAMOB Flood Watch National Weather Service Mobile AL 923 PM CDT Sun Aug 15 2021 ALZ058-060-FLZ203>206-161030- /O.CON.KMOB.FF.A.0013.000000T0000Z-210817T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Crenshaw-Covington-Santa Rosa Inland-Santa Rosa Coastal-Okaloosa Inland-Okaloosa Coastal- Including the cities of Niceville, Eglin AFB, Crestview, Opp, Seminole, Jay, Bagdad, Valparaiso, Destin, Wright, Brantley, Gulf Breeze, Fort Walton Beach, Navarre, Andalusia, Luverne, and Milton 923 PM CDT Sun Aug 15 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of south central Alabama, including the following areas, Covington and Crenshaw. Portions of northwest Florida, including the following areas, Okaloosa Coastal, Okaloosa Inland, Santa Rosa Coastal and Santa Rosa Inland. * Through Tuesday afternoon. * Heavy rainfall associated with Fred is expected to occur Monday through Tuesday over portions of the western Florida panhandle and south central Alabama. Rainfall amounts of 3 to 6 inches with locally higher amounts are possible across portions of the western Florida panhandle with 2 to 4 inches over portions of south central Alabama. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ JMM
399 WGUS64 KMOB 160633 FFAMOB Flood Watch National Weather Service Mobile AL 133 AM CDT Mon Aug 16 2021 FLZ203-204-160745- /O.CAN.KMOB.FF.A.0013.000000T0000Z-210817T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Santa Rosa Inland-Santa Rosa Coastal- Including the cities of Bagdad, Navarre, Milton, Gulf Breeze, and Jay 133 AM CDT Mon Aug 16 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for A portion of northwest Florida, including the following areas, Santa Rosa Coastal and Santa Rosa Inland. has been cancelled. The track of Tropical Storm Fred continues to move east, as a result forecast rainfall amounts across Santa Rosa county have diminished. Rainfall totals of 1 to 2 inches could still be possible. The Flood Watch is cancelled. $$ ALZ058-060-FLZ205-206-161445- /O.CON.KMOB.FF.A.0013.000000T0000Z-210817T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Crenshaw-Covington-Okaloosa Inland-Okaloosa Coastal- Including the cities of Niceville, Eglin AFB, Crestview, Opp, Seminole, Valparaiso, Destin, Wright, Brantley, Fort Walton Beach, Andalusia, and Luverne 133 AM CDT Mon Aug 16 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of south central Alabama, including the following areas, Covington and Crenshaw. Portions of northwest Florida, including the following areas, Okaloosa Coastal and Okaloosa Inland. * Through Tuesday afternoon. * Heavy rainfall associated with Fred is expected to occur Monday through Tuesday over portions of the western Florida panhandle and south central Alabama. Rainfall amounts of 3 to 6 inches with locally higher amounts are possible across portions of the western Florida panhandle with 2 to 4 inches over portions of south central Alabama. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Black
557 WGUS64 KMOB 161614 FFAMOB Flood Watch National Weather Service Mobile AL 1114 AM CDT Mon Aug 16 2021 ALZ058-060-FLZ205-206-170015- /O.CON.KMOB.FF.A.0013.000000T0000Z-210817T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Crenshaw-Covington-Okaloosa Inland-Okaloosa Coastal- Including the cities of Niceville, Eglin AFB, Crestview, Opp, Seminole, Valparaiso, Destin, Wright, Brantley, Fort Walton Beach, Andalusia, and Luverne 1114 AM CDT Mon Aug 16 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of south central Alabama, including the following areas, Covington and Crenshaw. Portions of northwest Florida, including the following areas, Okaloosa Coastal and Okaloosa Inland. * Through Tuesday afternoon. * Heavy rainfall associated with Fred is possible over Okaloosa county, Florida and Crenshaw and Covington counties, Alabama. Rainfall amounts of 2 to 4 inches are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ DRE
090 WGUS64 KMOB 162018 FFAMOB Flood Watch National Weather Service Mobile AL 318 PM CDT Mon Aug 16 2021 ALZ058-060-FLZ205-206-162130- /O.CAN.KMOB.FF.A.0013.000000T0000Z-210817T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Crenshaw-Covington-Okaloosa Inland-Okaloosa Coastal- Including the cities of Niceville, Eglin AFB, Crestview, Opp, Seminole, Valparaiso, Destin, Wright, Brantley, Fort Walton Beach, Andalusia, and Luverne 318 PM CDT Mon Aug 16 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for Portions of south central Alabama, including the following areas, Covington and Crenshaw. Portions of northwest Florida, including the following areas, Okaloosa Coastal and Okaloosa Inland. has been cancelled. Rainfall amounts will not be sufficient to support a risk of flash flooding. The Flood Watch is cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ DRE
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 5:18 AM CDT | Coastal Flood Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 41 hr |
| Aug 15, 5:18 AM CDT | High Surf Warning | MOB | Escambia, Okaloosa, Santa Rosa | 35 hr |
| Aug 15, 10:17 AM CDT | Tropical Storm Warning | MOB | Okaloosa | 36 hr |
| Aug 15, 2:37 PM CDT | Special Weather Statement | MOB | Okaloosa | 38 min |
| Aug 15, 3:26 PM CDT | Special Weather Statement | MOB | Santa Rosa | 49 min |
| Aug 14, 7:03 PM CDT | Special Marine Warning | MOB | 87 min | |
| Aug 14, 8:01 PM CDT | Special Weather Statement | MOB | Butler | 44 min |
| Aug 15, 10:48 AM CDT | Small Craft Advisory | MOB | 35 hr | |
| Aug 15, 1:30 PM CDT | Special Marine Warning | MOB | 60 min | |
| Aug 15, 1:55 PM CDT | Special Weather Statement | MOB | Clarke | 50 min |
| Aug 15, 2:49 PM CDT | Special Marine Warning | MOB | 31 min | |
| Aug 15, 3:53 PM CDT | Special Weather Statement | MOB | Mobile | 52 min |
| Aug 15, 5:50 PM CDT | Special Weather Statement | MOB | Clarke | 40 min |
| Aug 15, 6:26 PM CDT | Special Weather Statement | MOB | Clarke, Wilcox | 49 min |
| Aug 15, 6:32 PM CDT | Areal Flood Advisory | MOB | Clarke, Monroe | 3 hr |
Nearby
Flash Flood Watches in Florida, 2021Flash Flood Watches in Alabama, 2021Every flash flood watch 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.