Alert archive / Alabama / Areal Flood Advisories in 2012

Areal Flood Advisory 37, NWS Mobile, AL

July 17, 2012Butler County, Alabama

NWS Mobile, AL issued this areal flood advisory at Jul 17, 2012, 2:34 PM CDT for Butler County, Alabama. It was in force for 116 min.

The area

The counties it named.

The facts

Issued
Jul 17, 2012, 2:34 PM CDT (19:34 UTC)
Expired
Jul 17, 2012, 4:30 PM CDT
In force
116 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Butler County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.6 hours before the alert went out and 159 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 2012-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1502 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2012-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
1502 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
14 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

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this areal flood advisory went out at Jul 17, 12:26 PM CDT, 2 hours 8 minutes earlier.

Area forecast discussion, Jul 17, 12:26 PM CDT, 2 hours 8 minutes before
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Hazardous weather outlook, Jul 17, 10:24 AM CDT, 4 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOBILE AL
1024 AM CDT TUE JUL 17 2012

ALZ051>064-FLZ001>006-MSZ067-075-076-078-079-181200-
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-
LOWER BALDWIN-INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-WAYNE-PERRY-
GREENE-STONE-GEORGE-
1024 AM CDT TUE JUL 17 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ALABAMA...SOUTHWEST ALABAMA...NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

.DAY ONE...REST OF TODAY AND TONIGHT

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS
THE AREA TODAY WITH THE BEST COVERAGE GENERALLY EAST OF THE I-65
CORRIDOR.  ATMOSPHERIC CONDITIONS SUPPORT FREQUENT LIGHTNING AND
HEAVY DOWNPOURS ALONG WITH GUSTY WINDS WITH THE STRONGER STORMS.
WHILE SOME OF THE STORMS COULD BE STRONG TO BRIEFLY
SEVERE...WIDESPREAD ORGANIZED SEVERE STORMS ARE NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

SCATTERED TO OCCASIONALLY NUMEROUS SHOWERS AND THUNDERSTORMS WILL
REMAIN IN THE FORECAST THROUGH THE WEEK AND UPCOMING WEEKEND. GUSTY
WINDS...FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY DOWNPOURS CAN
BE EXPECTED WITH ANY OF THE STRONGER THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF SKYWARN SEVERE STORM SPOTTER NETWORKS IS NOT EXPECTED
THROUGH MONDAY.

GMZ630-650-655-670-675-181200-
MOBILE BAY-
COASTAL WATERS FROM PENSACOLA FL TO PASCAGOULA MS OUT 20 NM-
COASTAL WATERS FROM DESTIN TO PENSACOLA FL OUT 20 NM-
WATERS FROM PENSACOLA FL TO PASCAGOULA MS FROM 20 TO 60 NM-
WATERS FROM DESTIN TO PENSACOLA FL FROM 20 TO 60 NM-
1024 AM CDT TUE JUL 17 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE COASTAL
WATERS OF ALABAMA AND NORTHWEST FLORIDA.

.DAY ONE...REST OF TODAY AND TONIGHT

SCATTERED TO OCCASIONALLY NUMEROUS SHOWERS AND THUNDERSTORMS ARE
POSSIBLE OVER THE MARINE AREA...WITH THE BEST COVERAGE MAINLY
OVERNIGHT. SOME OF THE STORMS WILL BE CAPABLE OF PRODUCING STRONG
WIND GUSTS...FREQUENT LIGHTNING...AND POTENTIALLY A FEW WATERSPOUTS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER THE MARINE
AREA THROUGH THE WEEK AND INTO THE UPCOMING WEEKEND. SOME OF THE
STORMS WILL BE CAPABLE OF PRODUCING STRONG WIND GUSTS...FREQUENT
LIGHTNING...AND POTENTIALLY A FEW WATERSPOUTS.

In the hours before

Special weather statement, Jul 17, 1:45 PM CDT, 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
145 PM CDT TUE JUL 17 2012

FLZ006-171945-
COASTAL OKALOOSA FL-
145 PM CDT TUE JUL 17 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN OKALOOSA COUNTY IN
NORTHWEST FLORIDA...THROUGH 245 PM CDT...

AT 143 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTHWEST
OF EGLIN AFB...OR 5 MILES NORTH OF SHALIMAR...AND MOVING SOUTH AT 5
MPH.

* LOCATIONS IMPACTED INCLUDE...
  OCEAN CITY...         FORT WALTON BEACH...  SHALIMAR...
  LAKE LORRAINE...      CINCO BAYOU...        WRIGHT...
  VALPARAISO...         NICEVILLE...          MARY ESTHER...

THE PRIMARY THREATS FROM THIS STORM ARE WIND GUSTS UP TO 55 MPH.
WINDS THIS STRONG COULD BLOW OFF TREE LIMBS AND ALSO BLOW AROUND
SMALL UNSECURED OBJECTS. SEEK SHELTER UNTIL THIS STORM HAS PASSED.
SMALL HAIL IS ALSO POSSIBLE WITH THIS STORM.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. STAY AWAY FROM WINDOWS AND DOORS. AVOID USING TELEPHONES.

&&
Special weather statement, Jul 17, 2:12 PM CDT, 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
212 PM CDT TUE JUL 17 2012

ALZ057-172015-
BUTLER AL-
212 PM CDT TUE JUL 17 2012

...A STRONG THUNDERSTORM WILL AFFECT EASTERN BUTLER COUNTY IN
SOUTHWEST ALABAMA...THROUGH 315 PM CDT...

AT 210 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR GREENVILLE...
OR 3 MILES SOUTHEAST OF I65 AND AL 185...AND MOVING SOUTHEAST AT 10
MPH.

* LOCATIONS IMPACTED INCLUDE...
  I65 AND AL 185...     I65 AND AL 10...      GREENVILLE...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 127 AND 133.

THE PRIMARY THREATS FROM THIS STORM ARE WIND GUSTS UP TO 55 MPH.
WINDS THIS STRONG COULD BLOW OFF TREE LIMBS AND ALSO BLOW AROUND
SMALL UNSECURED OBJECTS. SEEK SHELTER UNTIL THIS STORM HAS PASSED.
THIS STORM MAY CONTINUE TO INTENSIFY AND A WARNING MAY SOON BE
NEEDED. PLEASE CONTINUE TO MONITOR LOCAL RADIO OR TV FOR FURTHER
NATIONAL WEATHER SERVICE UPDATES OR POSSIBLE WARNINGS.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 6:22 AM CDTSpecial Marine WarningMOB83 min
Jul 17, 12:41 PM CDTSpecial Marine WarningMOB94 min
Jul 17, 2:18 PM CDTSpecial Marine WarningMOB27 min
Jul 17, 2:58 PM CDTSpecial Marine WarningMOB62 min
Jul 17, 3:33 PM CDTSevere Thunderstorm WarningMOBCovington16 min
Jul 17, 3:41 PM CDTSevere Thunderstorm WarningMOBEscambia26 min
Jul 17, 4:10 PM CDTSevere Thunderstorm WarningMOBEscambia36 min
Jul 17, 4:58 PM CDTAreal Flood AdvisoryMOBEscambia2 hr
Jul 17, 5:20 PM CDTSevere Thunderstorm WarningMOBButler40 min
Jul 17, 5:35 PM CDTSevere Thunderstorm WarningMOBMobile40 min
Jul 17, 6:05 PM CDTAreal Flood AdvisoryMOBMobile115 min
Jul 17, 6:36 PM CDTSpecial Marine WarningMOB84 min
Jul 17, 6:42 PM CDTSevere Thunderstorm WarningMOBBaldwin38 min
Jul 17, 6:49 PM CDTSpecial Marine WarningMOB56 min
Jul 17, 2:41 PM CDTAreal Flood AdvisoryMOBOkaloosa2 hr
Jul 17, 3:31 PM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa26 min
Jul 17, 4:55 PM CDTSevere Thunderstorm WarningMOBSanta Rosa50 min

Nearby

Areal Flood Advisories in Alabama, 2012Every areal flood advisory in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.