Alert archive / Alabama / Areal Flood Warnings in 2021
Areal Flood Warning 2, NWS Mobile, AL
NWS Mobile, AL issued this areal flood warning at Apr 15, 2021, 9:45 AM CDT for Mobile County, Alabama. It was in force for 12 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 15, 2021, 9:45 AM CDT (14:45 UTC)
- Expired
- Apr 15, 2021, 9:30 PM CDT
- In force
- 12 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Mobile County, AL
The radar
The Mobile radar (KMOB), 37 km from the middle of the area, began a volume at 14:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 15, 12:07 PM CDT | FLOOD | 1 Ese Dauphin Island, AL | DAUPHIN ISLAND PD REPORTS MULTIPLE HIGHWAYS AND ROADWAYS REMAIN FLOODED WITH STANDING WATER COVERING THE ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 2.8 hours before the alert went out and 144 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
- 231 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 440 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 317 m²/s²
- 0-3 km storm-relative helicity
- 375 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.6
The text
As transmitted.
055
WGUS44 KMOB 151445
FLWMOB
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mobile AL
945 AM CDT Thu Apr 15 2021
ALC097-160230-
/O.NEW.KMOB.FA.W.0002.210415T1445Z-210416T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mobile AL-
945 AM CDT Thu Apr 15 2021
The National Weather Service in Mobile has issued a
* Flood Warning for...
Southwestern Mobile County in southwestern Alabama...
* Until 930 PM CDT Thursday.
* At 945 AM CDT, Doppler radar and automated rain gauges indicated
heavy rain has fallen due to thunderstorms. Reports up to six
inches have been received across the far southern portion of
Mobile County, mostly since Midnight. Flooding is ongoing but will
gradually begin to recede this afternoon and into the early
evening. The hardest hit areas were generally south of a line from
the Theodore Industrial Canal west to where I-10 crosses the
Alabama line into Mississippi.
* Flooded yards and water may enter homes that are not elevated.
Rushing water near creeks and there have been reports of water
flowing over the roadways. The rapid rises will last maybe
another 1 to 2 hours and will replaced with general inundation, or
a spreading out of the water.
* Some locations that will experience flooding include...
Theodore, Grand Bay, Bayou La Batre, Dauphin Island, Coden,
Alabama Port, Dixon Corner, Kirewakra, Fowl River, Irvington,
South Orchard, Saint Elmo, Laurendine, Delchamps, Smithport,
Bayleys Corner, Mon Louis, Faustinas, Belle Fontaine and Sunny
Cove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3048 8840 3058 8814 3055 8808 3036 8811
3033 8814 3027 8811 3024 8807 3024 8811
3025 8815 3024 8820 3025 8820 3026 8813
3032 8816 3031 8819 3036 8820 3038 8829
3036 8830 3039 8833 3038 8840
$$1 follow-up statement
459
WGUS84 KMOB 160231
FLSMOB
Flood Statement
National Weather Service Mobile AL
931 PM CDT Thu Apr 15 2021
ALC097-160241-
/O.EXP.KMOB.FA.W.0002.000000T0000Z-210416T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mobile AL-
931 PM CDT Thu Apr 15 2021
...FLOOD WARNING HAS EXPIRED FOR SOUTHWESTERN MOBILE COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 3048 8840 3058 8814 3055 8808 3036 8811
3033 8814 3027 8811 3024 8807 3024 8811
3025 8815 3024 8820 3025 8820 3026 8813
3032 8816 3031 8819 3036 8820 3038 8829
3036 8830 3039 8833 3038 8840
$$
BBThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:13 PM CDT | Special Marine Warning | MOB | 62 min | |
| Apr 14, 8:24 PM CDT | Special Marine Warning | MOB | 96 min | |
| Apr 14, 10:00 PM CDT | Special Marine Warning | MOB | 97 min | |
| Apr 15, 2:17 AM CDT | Special Weather Statement | MOB | Washington | 43 min |
| Apr 15, 3:05 AM CDT | Special Marine Warning | MOB | 55 min | |
| Apr 15, 3:23 AM CDT | Special Weather Statement | MOB | Mobile | 52 min |
| Apr 15, 3:42 AM CDT | Small Craft Advisory | MOB | 11 hr | |
| Apr 15, 3:48 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 42 min |
| Apr 15, 4:00 AM CDT | Special Marine Warning | MOB | 45 min | |
| Apr 15, 4:52 AM CDT | Areal Flood Advisory | MOB | Mobile | 113 min |
| Apr 15, 5:00 AM CDT | Special Marine Warning | MOB | 60 min | |
| Apr 15, 5:13 AM CDT | Special Weather Statement | MOB | Washington | 47 min |
| Apr 15, 5:19 AM CDT | Special Weather Statement | MOB | Mobile | 41 min |
| Apr 15, 5:23 AM CDT | Special Marine Warning | MOB | 97 min | |
| Apr 15, 5:55 AM CDT | Special Marine Warning | MOB | 95 min | |
| Apr 15, 6:31 AM CDT | Areal Flood Advisory | MOB | Baldwin, Mobile | 119 min |
| Apr 15, 6:36 AM CDT | Areal Flood Advisory | MOB | Baldwin, Mobile | 114 min |
| Apr 15, 7:01 AM CDT | Special Marine Warning | MOB | 119 min | |
| Apr 15, 7:04 AM CDT | Special Weather Statement | MOB | Baldwin | 41 min |
| Apr 15, 7:06 AM CDT | Special Marine Warning | MOB | 39 min | |
| Apr 15, 7:36 AM CDT | Flash Flood Warning | MOB | Baldwin, Mobile | 3 hr |
| Apr 15, 7:40 AM CDT | Special Marine Warning | MOB | 95 min | |
| Apr 15, 7:45 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 45 min |
| Apr 15, 7:51 AM CDT | Special Marine Warning | MOB | 84 min | |
| Apr 15, 7:52 AM CDT | Special Weather Statement | MOB | Mobile | 53 min |
| Apr 15, 8:05 AM CDT | Special Weather Statement | MOB | Mobile | 40 min |
| Apr 15, 8:11 AM CDT | Special Marine Warning | MOB | 2 hr | |
| Apr 15, 8:52 AM CDT | Special Marine Warning | MOB | 83 min | |
| Apr 15, 10:14 AM CDT | Special Marine Warning | MOB | 61 min | |
| Apr 15, 10:48 AM CDT | Flash Flood Watch | MOB | Baldwin, Mobile, Washington | 62 hr |
| Apr 15, 11:50 AM CDT | Areal Flood Warning | MOB | Baldwin | 6 hr |
Nearby
Areal Flood Warnings in Alabama, 2021Every areal flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.