Alert archive / Alabama / Flash Flood Warnings in 2021
Flash Flood Warning 13, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Apr 15, 2021, 7:36 AM CDT for Baldwin County, Mobile County, Alabama. It was in force for 3 hr. 6 reports 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, 7:36 AM CDT (12:36 UTC)
- Expired
- Apr 15, 2021, 10:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Baldwin County, AL, Mobile County, AL
The radar
The Mobile radar (KMOB), 26 km from the middle of the area, began a volume at 12:35 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, 7:55 AM CDT | FLASH FLOOD | 1 Nw I10 And Mcdonald R, AL | WATER REPORTED OVER OLD PASCAGOULA RD TO THE WEST OF MCDONALD RD. REPORTS VIA SOCIAL MEDIA. |
| Apr 15, 8:10 AM CDT | FLASH FLOOD | 2 Wsw Dixon Corner, AL | WATER OVER ROADWAY WITH STRANDED VEHICLES AT AL 188 AND FOUR MILE RD. REPORT VIA SOCIAL MEDIA. |
| Apr 15, 8:15 AM CDT | FLASH FLOOD | Mobile Infirmary, AL | REPORTS OF FLOODED ROADS NEAR MOBILE INFIRMARY (ESPECIALLY ALONG LAMBERT AVE). REPORTS AND PHOTOS VIA SOCIAL MEDIA. |
| Apr 15, 8:20 AM CDT | FLASH FLOOD | 1 S Grand Bay, AL | REPORTS OF WATER OVER THE ROAD SOUTH OF GRAND BAY ALONG POTTER TRACT RD. REPORT VIA SOCIAL MEDIA. |
| Apr 15, 8:30 AM CDT | FLASH FLOOD | 1 Ne Ladd Stadium, AL | WATER OVER THE ROAD ALONG S ANN ST. REPORTS VIA SOCIAL MEDIA. |
| Apr 15, 8:45 AM CDT | FLASH FLOOD | 1 Ssw Saint Elmo, AL | ARYGLE RD AT HALF MILE RD IS COMPLETELY FLOODED. REPORT VIA VOLUNTEER FIRE DEPARTMENT ON SOCIAL MEDIA. |
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, 0.6 hours before the alert went out and 152 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.
327
WGUS54 KMOB 151236
FFWMOB
ALC003-097-151530-
/O.NEW.KMOB.FF.W.0013.210415T1236Z-210415T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
736 AM CDT Thu Apr 15 2021
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Southwestern Baldwin County in southwestern Alabama...
Southern Mobile County in southwestern Alabama...
* Until 1030 AM CDT.
* At 736 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Midtown Mobile, Downtown Mobile, Prichard, Tillmans Corner,
Fairhope, Gulf Shores, Theodore, Chickasaw, Grand Bay, Bayou La
Batre, Point Clear, Dauphin Island, Bon Secour, Semmes, Tanner
Williams, Alabama Port, Coden, I10 And I65, Fort Morgan and Mobile
Regional Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3080 8842 3077 8802 3028 8770 3016 8762
3016 8837 3025 8838
FLASH FLOOD...RADAR INDICATED
$$
JLH1 follow-up statement
010
WGUS74 KMOB 151530
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
1030 AM CDT Thu Apr 15 2021
ALC003-097-151540-
/O.EXP.KMOB.FF.W.0013.000000T0000Z-210415T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Baldwin AL-Mobile AL-
1030 AM CDT Thu Apr 15 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 1030 AM CDT THIS MORNING FOR
SOUTHWESTERN BALDWIN AND SOUTHERN MOBILE COUNTIES...
The heavy rain has ended. However, the Flash Flood Warning has been
replaced by an Areal Flood Warning generally south of I-10 across
portions of southern Mobile Co through mid-evening.
LAT...LON 3080 8842 3077 8802 3028 8770 3016 8762
3016 8837
$$The 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, 7:40 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, 9:45 AM CDT | Areal Flood Warning | MOB | Mobile | 12 hr |
| 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
Flash Flood Warnings in Alabama, 2021Every flash 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.