Alert archive / Florida / Areal Flood Advisories in 2021
Areal Flood Advisory 23, NWS Mobile, AL
NWS Mobile, AL issued this areal flood advisory at May 4, 2021, 9:49 PM CDT for Escambia County, Santa Rosa County, Florida. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- May 4, 2021, 9:49 PM CDT (02:49 UTC)
- Expired
- May 5, 2021, 1:45 AM CDT
- In force
- 4 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
Counties Escambia County, FL, Santa Rosa County, FL
The radar
The Mobile radar (KMOB), 101 km from the middle of the area, began a volume at 02:51 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
Slidell Radar S, LA (KSIL), launched 00:00Z, 2.8 hours before the alert went out and 246 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
- 3152 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 647 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 3.1
- Supercell composite
- 10.5
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Mobile, AL wrote its last area forecast discussion before this areal flood advisory went out at May 4, 9:49 PM CDT, 0 minutes earlier.
Area forecast discussion, May 4, 9:49 PM CDT, 0 minutes before
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Local storm report, May 4, 8:18 PM CDT, 1 hour 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
818 PM CDT TUE MAY 4 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0717 PM TSTM WND DMG 2 WNW CLEARVIEW 31.47N 86.48W
05/04/2021 COVINGTON AL EMERGENCY MNGR
TREES DOWN NEAR RAWLS SCHOOL RD AT BOSTON
RD.
&&
MBLocal storm report, May 4, 8:20 PM CDT, 1 hour 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
820 PM CDT TUE MAY 4 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0626 PM TSTM WND GST 2 SE GROVE HILL 31.69N 87.76W
05/04/2021 M67 MPH CLARKE AL MESONET
MESONET STATION IN GROVE HILL GUSTED TO 67
MPH.
&&
MBSpecial weather statement, May 4, 8:52 PM CDT, 57 minutes before
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</html>Local storm report, May 4, 8:56 PM CDT, 53 minutes before
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</html>Local storm report, May 4, 9:03 PM CDT, 46 minutes before
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</html>Local storm report, May 4, 9:46 PM CDT, 3 minutes before
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</html>The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 7:26 PM CDT | Special Marine Warning | MOB | 2 hr | |
| May 4, 7:28 PM CDT | Special Weather Statement | MOB | Covington, Escambia | 62 min |
| May 4, 7:33 PM CDT | Special Weather Statement | MOB | Baldwin, Mobile | 57 min |
| May 4, 7:44 PM CDT | Severe Thunderstorm Warning | MOB | Covington, Crenshaw | 32 min |
| May 4, 8:15 PM CDT | River Flood Warning | MOB | Baldwin | 29 hr |
| May 4, 8:20 PM CDT | Areal Flood Advisory | MOB | Mobile | 6 hr |
| May 4, 8:28 PM CDT | Areal Flood Advisory | MOB | Baldwin | 6 hr |
| May 4, 8:36 PM CDT | Flash Flood Warning | MOB | Mobile | 6 hr |
| May 4, 9:41 PM CDT | Special Marine Warning | MOB | 94 min | |
| May 5, 12:35 AM CDT | Areal Flood Advisory | MOB | Baldwin | 4 hr |
| May 5, 1:50 AM CDT | Flash Flood Warning | MOB | Baldwin | 6 hr |
| May 5, 2:27 AM CDT | River Flood Warning | MOB | Baldwin | 23 hr |
| May 5, 2:30 AM CDT | River Flood Warning | MOB | Baldwin | 22 hr |
| May 5, 2:50 AM CDT | Special Marine Warning | MOB | 85 min | |
| May 5, 6:29 AM CDT | Special Weather Statement | MOB | Baldwin | 46 min |
| May 5, 7:07 AM CDT | Areal Flood Advisory | MOB | Mobile | 3 hr |
| May 5, 7:19 AM CDT | Special Marine Warning | MOB | 86 min | |
| May 5, 7:43 AM CDT | Flash Flood Warning | MOB | Baldwin | 6 hr |
| May 5, 8:00 AM CDT | River Flood Warning | MOB | Clarke, Monroe, Wilcox | 7 days |
| May 5, 8:00 AM CDT | River Flood Warning | MOB | Dallas, Monroe, Wilcox | 4 days |
| May 5, 8:31 AM CDT | Special Marine Warning | MOB | 59 min | |
| May 5, 8:57 AM CDT | Flash Flood Warning | MOB | Mobile | 4 hr |
| May 5, 12:02 PM CDT | Special Marine Warning | MOB | 88 min | |
| May 5, 1:24 PM CDT | Areal Flood Advisory | MOB | Mobile | 96 min |
| May 5, 1:26 PM CDT | Special Marine Warning | MOB | 64 min | |
| May 5, 1:44 PM CDT | Areal Flood Advisory | MOB | Baldwin | 3 hr |
| May 4, 8:10 PM CDT | River Flood Warning | MOB | Okaloosa | 48 hr |
| May 4, 8:52 PM CDT | Special Weather Statement | MOB | Escambia, Okaloosa, Santa Rosa | 68 min |
| May 5, 2:45 AM CDT | Areal Flood Advisory | MOB | Santa Rosa | 4 hr |
| May 5, 8:35 AM CDT | Special Weather Statement | MOB | Jackson | 40 min |
Nearby
Areal Flood Advisories in Florida, 2021Every areal flood 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.