Alert archive / Alabama / Special Weather Statements in 2016

Special Weather Statement, NWS Mobile, AL

August 21, 2016Covington County, Escambia County, Alabama

NWS Mobile, AL issued this special weather statement at Aug 21, 2016, 4:21 PM CDT for Covington County, Escambia County, Alabama. It was in force for 54 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: Aug 21, 2016, 4:21 PM CDT (21:21 UTC)
Expired: Aug 21, 2016, 5:15 PM CDT
In force: 54 min
Issued by: NWS Mobile, AL

Counties Covington County, AL, Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 89 km from the middle of the area, began a volume at 21:23 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.4 hours before the alert went out and 238 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: 855 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 844 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -29 m²/s²
0-3 km storm-relative helicity: -8 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 Aug 21, 3:08 PM CDT, 1 hour 13 minutes earlier.

Area forecast discussion, Aug 21, 3:08 PM CDT, 1 hour 13 minutes before

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Hazardous weather outlook, Aug 21, 4:26 AM CDT, 11 hours 55 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE MOBILE AL
426 AM CDT SUN AUG 21 2016

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-220930-
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-
426 AM CDT SUN AUG 21 2016

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
AFTERNOON. THE STORMS WILL BE CAPABLE OF PRODUCING TORRENTIAL
DOWNPOURS AND FREQUENT LIGHTNING. A FEW STORMS MAY BECOME STRONG AND
PRODUCE WIND GUSTS OF 40 TO 50 MPH...ESPECIALLY ACROSS INLAND
SOUTHWEST ALABAMA AND SOUTHEAST MISSISSIPPI.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A FEW STRONG STORMS WITH WIND GUSTS OF 40 TO 50 MPH ARE POSSIBLE
MONDAY AFTERNOON. SCATTERED THUNDERSTORMS ACROSS THE AREA WILL ALSO
PRODUCE TORRENTIAL DOWNPOURS AND FREQUENT LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

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

GMZ630>635-650-655-670-675-220930-
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-
426 AM CDT SUN AUG 21 2016

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

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 21, 11:55 AM CDT, 4 hours 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1155 AM CDT SUN AUG 21 2016

FLZ205-211745-
OKALOOSA INLAND FL-
1155 AM CDT SUN AUG 21 2016

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
OKALOOSA COUNTY UNTIL 1245 PM CDT...

AT 1155 AM CDT...THE STRONG THUNDERSTORM WAS LOCATED 11 MILES
SOUTHWEST OF CRESTVIEW...MOVING NORTHEAST AT 25 MPH.

WINDS IN EXCESS OF 40 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.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3054 8649 3056 8653 3053 8655 3046 8678
      3054 8680 3068 8679 3100 8654 3084 8639
      3057 8639
TIME...MOT...LOC 1655Z 231DEG 20KT 3062 8669

Special weather statement, Aug 21, 4:21 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 5:00 PM CDT	Special Weather Statement	MOB	Escambia	60 min
Aug 21, 11:55 AM CDT	Special Weather Statement	MOB	Okaloosa	50 min
Aug 21, 5:54 PM CDT	Special Weather Statement	MOB	Escambia	66 min
Aug 21, 5:18 PM CDT	Special Weather Statement	MOB	Perry, Wayne	57 min

Nearby

Special Weather Statements in Alabama, 2016 Every 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.