Alert archive / Florida / Flash Flood Warnings in 2020

Flash Flood Warning 31, NWS Mobile, AL

September 16, 2020Escambia County, Okaloosa County, Santa Rosa County, Florida; Baldwin County, Covington County, Escambia County, Alabama

NWS Mobile, AL issued this flash flood warning at Sep 16, 2020, 5:00 AM CDT for Escambia County, Okaloosa County, Santa Rosa County, Florida; Baldwin County, Covington County, Escambia County, Alabama. It was in force for 10 hr. 9 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, 5:00 AM CDT (10:00 UTC)
Expired: Sep 16, 2020, 2:30 PM CDT
In force: 10 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Baldwin County, AL, Covington County, AL, Escambia County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 80 km from the middle of the area, began a volume at 10:00 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, 5:26 AM CDT	HEAVY RAIN 4.01	Bay Minette, AL	4.01IN OF RAIN MEASURED IN BAY MINETTE, AL. REPORTED BY A TRAINED SPOTTER.
Sep 16, 5:50 AM CDT	HEAVY RAIN 6.92	2 Nnw Robertsdale, AL	6.921IN OF RAIN REPORTED SINCE MIDNIGHT AT THE ROBERTSDALE, AL SOUTH ALABAMA MESONET SITE.
Sep 16, 5:53 AM CDT	HEAVY RAIN 18.68	Gasque, AL	18.681IN OF RAIN MEASURED AT THE GASQUE, AL MESONET SITE.
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, 6:07 AM CDT	HEAVY RAIN 4.74	2 Ne Fairhope, AL	4.736IN OF RAIN MEASURED SINCE MIDNIGHT AT THE FAIRHOPE, 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.
Sep 16, 8:28 AM CDT	HEAVY RAIN 10.9	Pace, FL	10.90IN OF RAIN SINCE MIDNIGHT MEASURED IN PACE, FL FROM A TRAINED SPOTTER.
Sep 16, 8:48 AM CDT	FLASH FLOOD	Pace, FL	REPORT OF A CAR SUBMERGED IN WATER UP TO THE TOP OF THE TIRES IN DRIVEWAY OF A HOME IN PACE, FL.

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, 10.0 hours before the alert went out and 223 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted.

763 
WGUS54 KMOB 161000
FFWMOB
ALC003-039-053-FLC033-091-113-161745-
/O.NEW.KMOB.FF.W.0031.200916T1000Z-200916T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
500 AM CDT Wed Sep 16 2020

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Southwestern Covington County in south central Alabama...
  Southern Escambia County in south central Alabama...
  Baldwin County in southwestern Alabama...
  Escambia County in northwestern Florida...
  Okaloosa County in northwestern Florida...
  Santa Rosa County in northwestern Florida...

* Until 1245 PM CDT Wednesday.

* At 500 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain in The western Florida Panhandle and portions of 
  southwestern and south central Alabama. Between 4 and 25 inches of 
  rain have fallen. Flash flooding is already occurring.

  HAZARD...Flash flooding caused by hurricane rainbands producing
           excessively heavy rainfall in a short period of time.

  SOURCE...Doppler radar, public reports of flooding, ongoing
           water rescues and gage reports.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Pensacola, Ferry Pass, Brent, West Pensacola, Wright, Fort Walton 
  Beach, Ensley, Daphne, Warrington, Crestview, Fairhope, Niceville, 
  Gonzalez, Destin, Gulf Shores, Eglin AFB, Bay Minette, Foley, Pace 
  and Milton.

Additional rainfall amounts of 10 to 15 inches are possible in the 
warned area today as Sally's core moves through the warned area. 
This will replace the original Flash Flood Warning that will soon 
expire.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3067 8795 3087 8791 3092 8786 3119 8619
      3099 8619 3099 8639 3037 8639 3039 8665
      3020 8783 3026 8783 3028 8777 3037 8783
      3040 8790 3048 8795 3053 8790

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1.5-2.5 INCHES IN 1 HOUR 

$$

JMM

2 follow-up statements

104 
WGUS54 KMOB 161648
FFWMOB
ALC003-039-053-FLC033-091-113-161800-
/O.EXT.KMOB.FF.W.0031.000000T0000Z-200916T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1148 AM CDT Wed Sep 16 2020

The National Weather Service in Mobile has extended the

* Flash Flood Warning for...
  Southwestern Covington County in south central Alabama...
  Southern Escambia County in south central Alabama...
  Baldwin County in southwestern Alabama...
  Escambia County in northwestern Florida...
  Okaloosa County in northwestern Florida...
  Santa Rosa County in northwestern Florida...

* Until 100 PM CDT.

* At 1147 AM CDT, emergency management reported thunderstorms 
  producing heavy rain in The western Florida Panhandle and portions 
  of southwestern and south central Alabama. Between 10 and 25 
  inches of rain have fallen. Flash flooding is already occurring.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Emergency management.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Pensacola, Ferry Pass, Brent, West Pensacola, Wright, Fort Walton 
  Beach, Ensley, Daphne, Warrington, Crestview, Fairhope, Niceville, 
  Gonzalez, Destin, Gulf Shores, Eglin AFB, Bay Minette, Foley, Pace 
  and Milton.

Additional rainfall amounts of 5 to 10 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3067 8795 3087 8791 3092 8786 3119 8619
      3099 8619 3099 8639 3037 8639 3039 8665
      3020 8783 3026 8783 3028 8777 3037 8783
      3040 8790 3048 8795 3053 8790

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...1.5-2.5 INCHES IN 1 HOUR 

$$

TRC

977 
WGUS54 KMOB 161734
FFWMOB
ALC003-039-053-FLC033-091-113-161930-
/O.EXT.KMOB.FF.W.0031.000000T0000Z-200916T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1234 PM CDT Wed Sep 16 2020

The National Weather Service in Mobile has extended the

* Flash Flood Warning for...
  Southern Covington County in south central Alabama...
  Southeastern Escambia County in south central Alabama...
  Central Baldwin County in southwestern Alabama...
  Northwestern Escambia County in northwestern Florida...
  Okaloosa County in northwestern Florida...
  Santa Rosa County in northwestern Florida...

* Until 230 PM CDT.

* At 1233 PM CDT, emergency management reported thunderstorms 
  producing heavy rain in The western Florida Panhandle and portions 
  of southwestern and south central Alabama. Between 10 and 25 
  inches of rain have fallen. Flash flooding is already occurring.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Emergency management.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Fort Walton Beach, Crestview, Destin, Bay Minette, Pace, Milton, 
  Spanish Fort, Florala, Century, Flomaton, Bagdad, Lake Lorraine, 
  Baker, Stapleton, Molino, Jay, Laurel Hill, Lockhart, Cinco Bayou 
  and Pollard.

Additional rainfall amounts of 5 to 10 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3067 8795 3087 8791 3092 8786 3119 8619
      3099 8619 3099 8639 3037 8639 3040 8667
      3049 8646 3073 8658 3070 8663 3072 8673
      3061 8696 3053 8707 3054 8713 3050 8715
      3064 8731 3070 8748

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

TRC

The 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 Considerable damage threat	MOB	Escambia, Okaloosa, Santa Rosa	8 hr
Sep 15, 11:36 PM CDT	Tornado Warning	MOB	Escambia, Santa Rosa	28 min
Sep 16, 1:03 AM CDT	Flash Flood Warning EmergencyCatastrophic damage threat	MOB	Escambia	6 hr
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 EmergencyCatastrophic damage threat	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, 9:33 AM CDT	Flash Flood Warning EmergencyCatastrophic damage threat	MOB	Escambia, Okaloosa, Santa Rosa	8 hr
Sep 16, 9:49 AM CDT	Flash Flood Warning Considerable damage threat	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, 2020 Flash Flood Warnings in Alabama, 2020 Every 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.