Alert archive / Alabama / Special Weather Statements in 2016

Special Weather Statement, NWS Mobile, AL

September 12, 2016Escambia County, Alabama

NWS Mobile, AL issued this special weather statement at Sep 12, 2016, 4:37 PM CDT for Escambia County, Alabama. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 12, 2016, 4:37 PM CDT (21:37 UTC)
Expired
Sep 12, 2016, 5:00 PM CDT
In force
23 min
Issued by
NWS Mobile, AL

County Escambia County, AL

The radar

The Mobile radar (KMOB), 92 km from the middle of the area, began a volume at 21:37 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.

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 9.6 hours before the alert went out and 129 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, Eglin AFB/Valpar, FL at 12:00Z on 2016-09-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 736 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Eglin AFB/Valpar, FL at 12:00Z on 2016-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.1939Sfc1 km3 km6 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
736 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
947 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
-13 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Sep 12, 3:47 PM CDT, 50 minutes earlier.

Area forecast discussion, Sep 12, 3:47 PM CDT, 50 minutes before
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Hazardous weather outlook, Sep 12, 5:09 AM CDT, 11 hours 28 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOBILE AL
509 AM CDT MON SEP 12 2016

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-131200-
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-MOBILE INLAND-BALDWIN INLAND-MOBILE CENTRAL-
BALDWIN CENTRAL-MOBILE COASTAL-BALDWIN COASTAL-ESCAMBIA INLAND-
ESCAMBIA COASTAL-SANTA ROSA INLAND-SANTA ROSA COASTAL-
OKALOOSA INLAND-OKALOOSA COASTAL-WAYNE-PERRY-GREENE-STONE-GEORGE-
509 AM CDT MON SEP 12 2016

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

.DAY ONE...TODAY AND TONIGHT

A STATIONARY FRONTAL BOUNDARY DRAPED OVER THE INTERIOR WEAKENS INTO A
PRESSURE TROUGH LATER TODAY INTO TONIGHT. WITH THE BOUNDARY SERVING AS
A FOCUS FOR LIFT WITHIN A DEEPLY MOIST ENVIRONMENT...SCATTERED TO
POTENTIALLY NUMEROUS SHOWERS AND STORMS IS EXPECTED TODAY. SOME OF
THE STORMS COULD BE STRONG AT TIMES...WITH BRIEF STRONG WIND GUSTS IN
EXCESS OF 40 MPH...FREQUENT LIGHTNING AND LOCALLY HEAVY RAINS BEING
THE MAIN IMPACTS. ALTHOUGH A FEW OF THE STRONGER STORMS COULD
INTENSIFY BRIEFLY TO SEVERE LEVELS...THE THREAT OF WIDESPREAD SEVERE
WEATHER IS MINIMAL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A CHANCE OF STORMS WILL CONTINUE INTO THE OUTLOOK. SOME OF THE
STORMS COULD BE STRONG AT TIMES...WITH BRIEF STRONG WIND GUSTS IN
EXCESS OF 40 MPH...FREQUENT LIGHTNING AND LOCALLY HEAVY RAINS BEING
THE MAIN IMPACTS. THE THREAT OF WIDESPREAD SEVERE WEATHER REMAINS
MINIMAL.

.SPOTTER INFORMATION STATEMENT...

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

GMZ630>635-650-655-670-675-131200-
NORTHERN MOBILE BAY-SOUTHERN MOBILE BAY-MISSISSIPPI SOUND-
PERDIDO BAY-PENSACOLA BAY SYSTEM-CHOCTAWHATCHEE 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-
509 AM CDT MON SEP 12 2016

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

.DAY ONE...TODAY AND TONIGHT

WINDS...WAVES AND SEAS WILL BE LOCALLY HIGHER IN AND NEAR ISOLATED TO
SCATTERED STORMS. FREQUENT LIGHTNING ACTIVITY WILL ALSO BE A THREAT
IN ANY OF THE STRONGER MARINE STORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

WINDS...WAVES AND SEAS WILL BE LOCALLY HIGHER IN AND NEAR ISOLATED TO
SCATTERED STORMS DURING THE OUTLOOK. FREQUENT LIGHTNING ACTIVITY
WILL ALSO BE A THREAT IN ANY OF THE STRONGER MARINE STORMS.

In the hours before

Special weather statement, Sep 12, 2:11 PM CDT, 2 hours 26 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
211 PM CDT MON SEP 12 2016

FLZ205-122000-
OKALOOSA INLAND FL-
211 PM CDT MON SEP 12 2016

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...CENTRAL
OKALOOSA COUNTY UNTIL 300 PM CDT...

AT 211 PM CDT...THE STRONG THUNDERSTORM WAS LOCATED NEAR CRESTVIEW...
MOVING NORTH AT 10 MPH.

WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
CRESTVIEW AND BAKER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3064 8648 3052 8672 3076 8679 3078 8679
      3089 8652
TIME...MOT...LOC 1911Z 158DEG 8KT 3069 8661
Special weather statement, Sep 12, 2:46 PM CDT, 1 hour 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
246 PM CDT MON SEP 12 2016

ALZ261-263-122030-
MOBILE INLAND AL-MOBILE CENTRAL AL-
246 PM CDT MON SEP 12 2016

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...WEST
CENTRAL MOBILE COUNTY UNTIL 330 PM CDT...

AT 245 PM CDT...THE STRONG THUNDERSTORM WAS LOCATED NEAR MOBILE
REGIONAL AIRPORT...OR NEAR MIDTOWN MOBILE...MOVING NORTHWEST AT 10
MPH.

WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
CHUNCHULA...SEMMES...WILMER AND MOBILE REGIONAL AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3078 8842 3081 8842 3095 8816 3071 8810
      3063 8828
TIME...MOT...LOC 1945Z 152DEG 7KT 3074 8820
Special weather statement, Sep 12, 3:17 PM CDT, 1 hour 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
317 PM CDT MON SEP 12 2016

ALZ060-FLZ205-206-122100-
COVINGTON AL-OKALOOSA INLAND FL-OKALOOSA COASTAL FL-
317 PM CDT MON SEP 12 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...SOUTHEASTERN COVINGTON AND OKALOOSA COUNTIES UNTIL 400 PM
CDT...

AT 317 PM CDT...THE STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES SOUTHWEST OF EGLIN AIR FORCE BASE TO NEAR
GENEVA...AND MOVING NORTHWEST AT 30 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
CRESTVIEW...NICEVILLE...OPP...VALPARAISO...FLORALA...BAKER...
LAUREL HILL...LOCKHART AND EGLIN AIR FORCE BASE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH
FLOODED ROADWAYS.

&&

LAT...LON 3099 8639 3046 8639 3048 8632 3043 8635
      3064 8679 3077 8679 3142 8627 3136 8619
      3100 8619
TIME...MOT...LOC 2017Z 125DEG 24KT 3053 8636 3105 8595
Special weather statement, Sep 12, 3:45 PM CDT, 52 minutes before
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Special weather statement, Sep 12, 4:20 PM CDT, 17 minutes before
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Special weather statement, Sep 12, 4:37 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 11, 7:43 PM CDTSpecial Weather StatementMOBEscambia47 min
Sep 11, 7:56 PM CDTSevere Thunderstorm WarningMOBEscambia33 min
Sep 12, 1:32 PM CDTSpecial Marine WarningMOB58 min
Sep 12, 1:34 PM CDTSpecial Weather StatementMOBBaldwin56 min
Sep 12, 2:24 PM CDTSpecial Marine WarningMOB36 min
Sep 12, 2:46 PM CDTSpecial Weather StatementMOBMobile44 min
Sep 12, 3:45 PM CDTSpecial Weather StatementMOBButler45 min
Sep 12, 4:20 PM CDTSpecial Weather StatementMOBConecuh40 min
Sep 12, 1:42 PM CDTSpecial Weather StatementMOBOkaloosa48 min
Sep 12, 2:10 PM CDTSpecial Weather StatementMOBSanta Rosa50 min
Sep 12, 2:11 PM CDTSpecial Weather StatementMOBOkaloosa49 min
Sep 12, 3:17 PM CDTSpecial Weather StatementMOBOkaloosa43 min

Nearby

Special Weather Statements in Alabama, 2016Every special weather statement in 2016

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; radar from the NEXRAD Level II archive.