Alert archive / Alabama / Flash Flood Warnings in 2018
Flash Flood Warning 18, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 1, 2018, 5:32 PM CDT for Mobile County, Alabama. It was in force for 118 min. 7 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
- Aug 1, 2018, 5:32 PM CDT (22:32 UTC)
- Expired
- Aug 1, 2018, 7:30 PM CDT
- In force
- 118 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Mobile County, AL
The radar
The Mobile radar (KMOB), 18 km from the middle of the area, began a volume at 22:32 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 |
|---|---|---|---|
| Aug 1, 5:41 PM CDT | FLASH FLOOD | 1 Sse Cochrane Bridge, AL | WATER OVER THE ROAD ALONG THE COCHRANE CAUSEWAY. REPORT VIA SOCIAL MEDIA. |
| Aug 1, 5:45 PM CDT | FLASH FLOOD | Midtown Mobile, AL | MULTIPLE STALLED VEHICLES ALONG DAUPHIN ST IN MIDTOWN AND DOWNTOWN MOBILE DUE TO WATER OVER THE ROADS. REPORTS VIA SOCIAL MEDIA. |
| Aug 1, 5:45 PM CDT | FLASH FLOOD | West Mobile, AL | STALLED VEHICLES ALONG COTTAGE HILL RD DUE TO WATER OVER THE ROAD. REPORTS VIA SOCIAL MEDIA. |
| Aug 1, 5:50 PM CDT | FLASH FLOOD | 1 W I65 And Airport Blv, AL | WATER OVER THE ROAD ALONG AIRPORT BLVD AND DOWNTOWNER BLVD. PICTURE VIA SOCIAL MEDIA. |
| Aug 1, 5:50 PM CDT | FLASH FLOOD | Downtown Mobile, AL | VEHICLE STALLED DUE TO WATER OVER BROAD ST IN DOWNTOWN MOBILE. REPORTS VIA SOCIAL MEDIA. |
| Aug 1, 5:55 PM CDT | FLASH FLOOD | Wallace Tunnel, AL | WATER OVER CLAIBORNE ST NEAR THE CIVIC CENTER. PICTURE VIA SOCIAL MEDIA. |
| Aug 1, 6:16 PM CDT | HEAVY RAIN 2.17 | Wallace Tunnel, AL | MESONET STATION E6967, WALLACE TUNNEL. HEAVY RAIN FELL IN THE SPAN OF 1-1.5 HOURS IN DOWNTOWN MOBILE. |
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, 10.5 hours before the alert went out and 166 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
- 1079 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 667 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
712
WGUS54 KMOB 012232
FFWMOB
ALC097-020030-
/O.NEW.KMOB.FF.W.0018.180801T2232Z-180802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
532 PM CDT WED AUG 1 2018
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Central Mobile County in southwestern Alabama...
* Until 730 PM CDT.
* At 531 PM CDT, the public reported thunderstorms producing heavy
rain and flooded roads across the warned area. Up to two inches of
rain have already fallen. Flash flooding is expected to
continue into the early evening.
* Some locations that will experience flooding include...
Midtown Mobile, Downtown Mobile, Prichard, Chickasaw and I65 And
I165.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3069 8817 3081 8804 3081 8799 3079 8800
3077 8802 3076 8802 3077 8800 3067 8803
3064 8817
$$2 follow-up statements
752
WGUS74 KMOB 012303
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
603 PM CDT WED AUG 1 2018
ALC097-020030-
/O.CON.KMOB.FF.W.0018.000000T0000Z-180802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mobile AL-
603 PM CDT WED AUG 1 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
CENTRAL MOBILE COUNTY...
At 601 PM CDT, Doppler radar indicated thunderstorms produced heavy
rain across the warned area. Flash flooding is expected to continue
through the early evening hours, and many roads across the Mobile
metro area are under water and impassable.
Some locations that will experience flooding include...
Midtown Mobile, Downtown Mobile, Prichard, Chickasaw and I65 And
I165.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Move to higher ground now. Act quickly to protect your life.
Stay away or be swept away. River banks and culverts can become
unstable and unsafe.
&&
LAT...LON 3069 8817 3081 8804 3081 8799 3079 8800
3077 8802 3076 8802 3077 8800 3067 8803
3064 8817
$$640
WGUS74 KMOB 020028
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
728 PM CDT WED AUG 1 2018
ALC097-020031-
/O.EXP.KMOB.FF.W.0018.000000T0000Z-180802T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mobile AL-
728 PM CDT WED AUG 1 2018
...THE FLASH FLOOD WARNING FOR CENTRAL MOBILE COUNTY WILL EXPIRE AT
730 PM CDT...
Flood waters will continue to recede through mid evening. Significant
flooding is no longer expected to pose a threat. Therefore, the Flash
Flood Warning will be allowed to expire. Minor nuisance flooding will
occur throughout the evening. Please continue to heed any remaining
road closures.
LAT...LON 3069 8817 3081 8804 3081 8799 3079 8800
3077 8802 3076 8802 3077 8800 3067 8803
3064 8817
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 10:14 PM CDT | Areal Flood Advisory | MOB | Covington, Escambia | 3 hr |
| Aug 1, 4:29 PM CDT | Areal Flood Advisory | MOB | Mobile | 3 hr |
| Aug 1, 5:17 PM CDT | Areal Flood Advisory | MOB | Mobile | 118 min |
Nearby
Flash Flood Warnings in Alabama, 2018Every flash flood warning in 2018
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.