Alert archive / Alabama / Flash Flood Warnings in 2017

Flash Flood Warning 31, NWS Mobile, AL

June 21, 20174 counties in Alabama

NWS Mobile, AL issued this flash flood warning at Jun 21, 2017, 11:06 AM CDT for 4 counties in 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 21, 2017, 11:06 AM CDT (16:06 UTC)
Expired
Jun 21, 2017, 5:00 PM CDT
In force
6 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties Butler County, AL, Conecuh County, AL, Covington County, AL, Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 107 km from the middle of the area, began a volume at 16:05 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 21, 12:40 PM CDTFLASH FLOODBrewton, ALPORTIONS OF BREWTON NEAR MURDER AND BURNT CORN CREEKS ARE UNDERWATER WITH LEVELS RISING QUICKLY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 4.1 hours before the alert went out and 207 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, Birmingham, AL at 12:00Z on 2017-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Birmingham, AL at 12:00Z on 2017-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
637 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

468 
WGUS54 KMOB 211606
FFWMOB
ALC013-035-039-053-212200-
/O.NEW.KMOB.FF.W.0031.170621T1606Z-170621T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1106 AM CDT WED JUN 21 2017

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Southwestern Butler County in south central Alabama...
  Eastern Escambia County in south central Alabama...
  Eastern Conecuh County in south central Alabama...
  Western Covington County in south central Alabama...

* Until 500 PM CDT Wednesday

* At 1059 AM CDT, Doppler radar indicated Doppler radar indicated 
  bands of moderate to heavy rains continuing to lift northward off 
  the Gulf over the warned area. 

* Some locations that will experience flooding include...
  Andalusia, Brewton, Evergreen, East Brewton, McKenzie, River Falls,
  Castleberry, Red Level, Heath, Gantt, Pollard, Riverview and I65
  And US 84.

Doppler rainfall precipitation estimates suggest that between 1 to 2 
inches of rain has fallen since 8 AM mostly over the far southern 
portions of the warned area. An increase in coverage is forecast 
through late afternoon and an additional 2 to 4 inches are possible. 
This will likely lead to widespread flooding problems. 

There have been reports of a few road closures due to flooding.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3100 8665 3100 8720 3168 8697 3149 8640
      3145 8640 3148 8637 3147 8634

$$
1 follow-up statement
631 
WGUS74 KMOB 212050
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
350 PM CDT WED JUN 21 2017

ALC013-035-039-053-212059-
/O.CAN.KMOB.FF.W.0031.000000T0000Z-170621T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Butler AL-Escambia AL-Conecuh AL-Covington AL-
350 PM CDT WED JUN 21 2017

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN BUTLER...EASTERN
ESCAMBIA...EASTERN CONECUH AND WESTERN COVINGTON COUNTIES IS
CANCELLED...

Flooding is no longer expected to pose a threat. Additional flash 
flood warnings may be required later this evening. Please continue 
to heed any remaining road closures and stay tuned!

LAT...LON 3100 8665 3100 8720 3168 8697 3149 8640
      3145 8640 3148 8637 3147 8634

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 8:12 PM CDTSpecial Marine WarningMOB2 hr
Jun 20, 8:19 PM CDTCoastal Flood WarningMOBBaldwin, Mobile50 hr
Jun 20, 8:23 PM CDTAreal Flood AdvisoryMOBBaldwin, Mobile3 hr
Jun 20, 10:07 PM CDTSpecial Marine WarningMOB113 min
Jun 20, 10:16 PM CDTFlash Flood WarningMOBBaldwin, Mobile6 hr
Jun 20, 11:44 PM CDTSpecial Marine WarningMOB2 hr
Jun 21, 1:43 AM CDTSpecial Marine WarningMOB2 hr
Jun 21, 3:12 AM CDTSpecial Marine WarningMOB2 hr
Jun 21, 3:47 AM CDTSpecial Marine WarningMOB118 min
Jun 21, 4:15 AM CDTFlash Flood WarningMOBBaldwin, Mobile12 hr
Jun 21, 5:44 AM CDTSpecial Marine WarningMOB2 hr
Jun 21, 8:38 AM CDTRiver Flood WarningMOBEscambia48 hr
Jun 21, 8:38 AM CDTRiver Flood WarningMOBEscambia61 hr
Jun 21, 8:38 AM CDTRiver Flood WarningMOBEscambia67 hr
Jun 21, 8:38 AM CDTRiver Flood WarningMOBEscambia12 days
Jun 21, 8:38 AM CDTRiver Flood WarningMOBCovington, Escambia3 days
Jun 21, 10:14 AM CDTAreal Flood AdvisoryMOBBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 4 more6 hr
Jun 21, 12:05 PM CDTFlash Flood WarningMOBBaldwin, Clarke, Conecuh, Escambia, Monroe, Washington6 hr
Jun 21, 12:35 PM CDTAreal Flood WarningMOBBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more24 hr
Jun 21, 2:29 PM CDTTornado WarningMOBBaldwin46 min
Jun 21, 2:44 PM CDTTornado WarningMOBEscambia30 min
Jun 21, 2:46 PM CDTTornado WarningMOBBaldwin59 min
Jun 21, 2:56 PM CDTSpecial Weather StatementMOBMobile34 min
Jun 21, 2:59 PM CDTSpecial Marine WarningMOB2 hr
Jun 21, 3:10 PM CDTTornado WarningMOBBaldwin25 min
Jun 21, 3:46 PM CDTFlash Flood WarningMOBBaldwin, Clarke, Mobile, Washington6 hr
Jun 21, 3:53 PM CDTTornado WarningMOBBaldwin52 min
Jun 21, 3:57 PM CDTSpecial Marine WarningMOB2 hr
Jun 21, 4:02 PM CDTRiver Flood WarningMOBMobile3 days
Jun 21, 4:17 PM CDTTornado WarningMOBEscambia43 min
Jun 21, 4:28 PM CDTSpecial Marine WarningMOB92 min
Jun 21, 4:52 PM CDTSevere Thunderstorm WarningMOBMobile38 min
Jun 21, 5:04 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile86 min
Jun 21, 5:42 PM CDTSpecial Marine WarningMOB63 min
Jun 21, 5:48 PM CDTSevere Thunderstorm WarningMOBBaldwin44 min
Jun 21, 5:51 PM CDTFlash Flood WarningMOBBaldwin, Choctaw, Clarke, Conecuh, Escambia, Monroe and 1 more6 hr
Jun 21, 5:51 PM CDTSpecial Marine WarningMOB114 min
Jun 21, 6:10 PM CDTSevere Thunderstorm WarningMOBBaldwin26 min
Jun 21, 6:43 PM CDTSpecial Marine WarningMOB2 hr
Jun 21, 6:45 PM CDTTornado WarningMOBCovington45 min

Nearby

Flash 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.