Alert archive / Florida / Flash Flood Warnings in 2017

Flash Flood Warning 23, NWS Mobile, AL

June 6, 2017Escambia County, Santa Rosa County, Florida; Baldwin County, Escambia County, Alabama

NWS Mobile, AL issued this flash flood warning at Jun 6, 2017, 8:44 PM CDT for Escambia County, Santa Rosa County, Florida; Baldwin County, Escambia County, Alabama. It was in force for 6 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
Jun 6, 2017, 8:44 PM CDT (01:44 UTC)
Expired
Jun 7, 2017, 2:45 AM CDT
In force
6 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

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

The radar

The Mobile radar (KMOB), 81 km from the middle of the area, began a volume at 01:45 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

TimeReportWhereRemark
Jun 7, 1:00 AM CDTFLASH FLOOD5 N Elsanor, ALMINOR FLOODING REPORTED AT THE RIVERSIDE RV RESORT IN ROBERTSDALE, AL.

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, 1.7 hours before the alert went out and 228 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-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2017-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 418 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2017-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
418 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
704 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

844 
WGUS54 KMOB 070144
FFWMOB
ALC003-053-FLC033-113-070745-
/O.NEW.KMOB.FF.W.0023.170607T0144Z-170607T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
844 PM CDT TUE JUN 6 2017

The National Weather Service in Mobile has issued a

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

* Until 245 AM CDT Wednesday

* At 843 PM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to three inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Daphne, Fairhope, Bay Minette, Spanish Fort, Robertsdale, Point
  Clear, Century, Loxley, Stapleton, Molino, Silverhill and Jay.

Additional rainfall amounts of up to three 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.

&&

LAT...LON 3106 8704 3078 8702 3039 8799 3080 8796

$$
1 follow-up statement
421 
WGUS74 KMOB 070735
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
235 AM CDT WED JUN 7 2017

ALC003-053-FLC033-113-070745-
/O.EXP.KMOB.FF.W.0023.000000T0000Z-170607T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Baldwin AL-Escambia AL-Santa Rosa FL-Escambia FL-
235 AM CDT WED JUN 7 2017

...THE FLASH FLOOD WARNING FOR CENTRAL BALDWIN...SOUTH CENTRAL
ESCAMBIA...NORTHWESTERN SANTA ROSA AND NORTHWESTERN ESCAMBIA COUNTIES
WILL EXPIRE AT 245 AM CDT WEDNESDAY...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 3106 8704 3078 8702 3039 8799 3080 8796

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 8:20 PM CDTFlash Flood WarningMOBEscambia, Santa Rosa6 hr
Jun 6, 8:21 PM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa3 hr
Jun 7, 12:20 AM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa6 hr
Jun 7, 2:07 AM CDTAreal Flood WarningMOBEscambia, Santa Rosa3 hr
Jun 7, 6:15 AM CDTAreal Flood WarningMOBSanta Rosa6 hr
Jun 6, 7:23 PM CDTFlash Flood WarningMOBClarke, Washington6 hr
Jun 6, 8:05 PM CDTFlash Flood WarningMOBMobile6 hr
Jun 6, 8:33 PM CDTSpecial Marine WarningMOB117 min
Jun 6, 9:27 PM CDTSpecial Marine WarningMOB63 min
Jun 7, 12:48 AM CDTRiver Flood WarningMOBBaldwin24 hr
Jun 7, 1:08 AM CDTHydrologic WarningMOBBaldwin32 hr
Jun 7, 9:48 AM CDTSmall Craft AdvisoryMOB5 hr
Jun 7, 11:40 AM CDTRiver Flood WarningMOBBaldwin21 hr

Nearby

Flash Flood Warnings in Florida, 2017Flash Flood Warnings in Alabama, 2017Every flash flood warning in 2017

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.