Alert archive / Florida / Flash Flood Warnings in 2020
Flash Flood Warning 28, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Sep 16, 2020, 1:03 AM CDT for Escambia County, Florida; Baldwin County, Alabama. It was in force for 6 hr. 5 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
- Sep 16, 2020, 1:03 AM CDT (06:03 UTC)
- Expired
- Sep 16, 2020, 7:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Emergency
- Flash flood emergency
- Damage threat
- Catastrophic
- Flood severity
- None
Counties Baldwin County, AL, Escambia County, FL
The radar
The Mobile radar (KMOB), 74 km from the middle of the area, began a volume at 06:04 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 |
|---|---|---|---|
| Sep 16, 2:55 AM CDT | HEAVY RAIN 6.25 | 2 W Miflin, AL | 6.252IN OF RAIN MEASURED SINCE MIDNIGHT AT THE FOLEY, AL MESONET STATION. |
| Sep 16, 4:59 AM CDT | HEAVY RAIN 15.53 | Pensacola High School, FL | 15.53IN OF RAIN OBSERVED AT: 500 W MAXWELL ST. PENSACOLA FROM WEATHER STATION. |
| Sep 16, 6:04 AM CDT | HEAVY RAIN 5.87 | 1 Ese Elberta, AL | 5.866IN OF RAIN MEASURED SINCE MIDNIGHT AT THE ELBERTA, AL MESONET STATION. |
| Sep 16, 6:24 AM CDT | HEAVY RAIN 24.8 | Pensacola Nas, FL | 24.8IN OF RAIN MEASURED AT NAS PENSACOLA, FL. REPORTED FROM TRAINED SPOTTER. |
| Sep 16, 7:09 AM CDT | HEAVY RAIN 30 | 2 Nne Bellview, FL | AN ESTIMATED 30IN OF RAIN IN NW PENSACOLA, FL. REPORTED FROM A TRAINED SPOTTER. |
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 00:00Z, 6.1 hours before the alert went out and 208 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
- 46 J/kg
- Mixed-layer CIN
- -93 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
700
WGUS54 KMOB 160603
FFWMOB
ALC003-FLC033-161200-
/O.NEW.KMOB.FF.W.0028.200916T0603Z-200916T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
103 AM CDT Wed Sep 16 2020
...FLASH FLOOD EMERGENCY FOR THIS IS A SERIOUS SITUATION AS INTENSE
RAINFALL RATES FROM SALLY'S EXCESSIVE HEAVY RAINBANDS CONTINUE TO
MOVE ASHORE. SOME LOCATIONS HAVE ALREADY RECEIVED UP TO TWENTY
INCHES OF RAIN SINCE THE EVENT BEGAN. THIS COULD EASILY BE DOUBLED
GIVEN THE SHORT AMOUNT OF TIME THAT HAS FALLEN AND GIVEN SALLY'S
VERY SLOW MOTION TO THE NORTH THROUGH THE MORNING HOURS...
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Southeastern Baldwin County in southwestern Alabama...
South Central Escambia County in northwestern Florida...
* Until 700 AM CDT.
* At 101 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain in southern Baldwin County Alabama and southern
Escambia County Florida. Between 10 and 20 inches of rain have
already fallen in the warned area. Flash flooding is already
occurring.
This is a FLASH FLOOD EMERGENCY for This is a serious situation as
intense rainfall rates from Sally's excessive heavy rainbands
continue to move ashore. Some locations have already received up
to twenty inches of rain since the event began. This could easily
be doubled given the short amount of time that has fallen and
given Sally's very slow motion to the north through the morning
hours. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER
GROUND NOW!
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Doppler radar, gage reports and areas small creeks
with rapid rises.
IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
HIGHER GROUND NOW! Life threatening flash flooding of
low water crossings, small creeks and streams, urban
areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Pensacola, Brent, West Pensacola, Warrington, Gulf Shores, Foley,
Orange Beach, Goulding, Lillian, Myrtle Grove, Magnolia Springs,
Bon Secour, Perdido Beach, Elberta, Josephine, Perdido Heights,
Paradise Beach, Perdido Bay, Caswell and Miflin.
Additional rainfall amounts up to 15 inches are possible in the
warned area through midday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to higher ground now! This is an extremely dangerous and
life-threatening situation. Do not attempt to travel unless you are
fleeing an area subject to flooding or under an evacuation order.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3038 8784 3044 8773 3045 8758 3048 8743
3055 8737 3051 8728 3050 8717 3049 8714
3041 8718 3031 8732 3022 8781 3026 8781
3028 8776 3037 8784
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC
$$
JMMThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 9:54 PM CDT | Areal Flood Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 6 hr |
| Sep 15, 10:53 PM CDT | River Flood Warning | MOB | Okaloosa, Santa Rosa | 5 days |
| Sep 15, 11:00 PM CDT | Flash Flood Warning | MOB | Escambia, Okaloosa, Santa Rosa | 8 hr |
| Sep 15, 11:36 PM CDT | Tornado Warning | MOB | Escambia, Santa Rosa | 28 min |
| Sep 16, 2:59 AM CDT | Tornado Warning | MOB | Santa Rosa | 31 min |
| Sep 16, 3:42 AM CDT | Tornado Warning | MOB | Santa Rosa | 15 min |
| Sep 16, 3:44 AM CDT | Tornado Warning | MOB | Okaloosa | 16 min |
| Sep 16, 3:45 AM CDT | Flash Flood Warning | MOB | Okaloosa, Santa Rosa | 8 hr |
| Sep 16, 3:58 AM CDT | Flash Flood Warning | MOB | Escambia | 6 hr |
| Sep 16, 4:00 AM CDT | Tornado Warning | MOB | Okaloosa | 15 min |
| Sep 16, 5:00 AM CDT | Flash Flood Warning | MOB | Escambia, Okaloosa, Santa Rosa | 10 hr |
| Sep 16, 9:33 AM CDT | Flash Flood Warning | MOB | Escambia, Okaloosa, Santa Rosa | 8 hr |
| Sep 16, 9:49 AM CDT | Flash Flood Warning | MOB | Escambia | 9 hr |
| Sep 16, 1:21 PM CDT | Coastal Flood Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 15 hr |
| Sep 16, 1:21 PM CDT | High Surf Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 15 hr |
| Sep 16, 1:35 PM CDT | Wind Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 10 hr |
| Sep 16, 2:26 PM CDT | Areal Flood Warning | MOB | Escambia, Okaloosa, Santa Rosa | 12 hr |
| Sep 15, 7:31 PM CDT | Special Marine Warning | MOB | 59 min | |
| Sep 15, 8:16 PM CDT | Special Marine Warning | MOB | 44 min | |
| Sep 15, 8:29 PM CDT | Areal Flood Advisory | MOB | Mobile | 4 hr |
| Sep 15, 11:40 PM CDT | Special Marine Warning | MOB | 25 min | |
| Sep 16, 1:32 AM CDT | Special Marine Warning | MOB | 88 min | |
| Sep 16, 2:08 AM CDT | Special Marine Warning | MOB | 22 min | |
| Sep 16, 2:57 AM CDT | Special Marine Warning | MOB | 2 hr | |
| Sep 16, 3:04 PM CDT | Flash Flood Warning | MOB | Covington, Escambia | 116 min |
| Sep 16, 4:18 PM CDT | Small Craft Advisory | MOB | 14 hr | |
| Sep 16, 4:45 PM CDT | Areal Flood Warning | MOB | Butler, Conecuh, Covington, Crenshaw, Escambia | 12 hr |
Nearby
Flash Flood Warnings in Florida, 2020Flash Flood Warnings in Alabama, 2020Every flash flood warning in 2020
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.