Alert archive / Alabama / Special Weather Statements in 2015

Special Weather Statement, NWS Mobile, AL

July 29, 2015Covington County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 29, 2015, 11:48 AM CDT for Covington County, Alabama. It was in force for 57 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
Jul 29, 2015, 11:48 AM CDT (16:48 UTC)
Expired
Jul 29, 2015, 12:45 PM CDT
In force
57 min
Issued by
NWS Mobile, AL

County Covington County, AL

The radar

The Eglin Afb radar (KEVX), 90 km from the middle of the area, began a volume at 16:48 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

Birmingham, AL (KBMX), launched 12:00Z, 4.8 hours before the alert went out and 227 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 2015-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1420 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 2015-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
1420 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
969 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Jul 29, 11:14 AM CDT, 34 minutes earlier.

Area forecast discussion, Jul 29, 11:14 AM CDT, 34 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Jul 29, 5:34 AM CDT, 6 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOBILE AL
534 AM CDT WED JUL 29 2015

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-301200-
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-
534 AM CDT WED JUL 29 2015

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 SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
DEVELOP TODAY AND LAST INTO TONIGHT. A FEW MAY BECOME STRONG TO
SEVERE...WITH DAMAGING WINDS GUSTING TO 60 MPH POSSIBLE.

HEAT INDICES ARE EXPECTED TO RISE INTO THE 106 TO 109 DEGREE RANGE
TODAY...WITH A HEAT ADVISORY IN EFFECT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS...ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE
THROUGH NEXT TUESDAY. THE STRONGER STORMS WILL BE CAPABLE OF
PRODUCING WIND GUSTS IN EXCESS OF 40 MPH AND LOCALLY HEAVY DOWNPOURS
OF RAIN. WIDESPREAD HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

GMZ630>635-650-655-670-675-301200-
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-
534 AM CDT WED JUL 29 2015

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

.DAY ONE...TODAY AND TONIGHT

WINDS AND SEAS WILL BE HIGHER IN AND AROUND ANY SHOWERS AND
THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

WINDS AND SEAS WILL BE HIGHER IN AND AROUND ANY SHOWERS AND
THUNDERSTORMS.

In the hours before

Special weather statement, Jul 29, 11:48 AM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1148 AM CDT WED JUL 29 2015

ALZ060-291745-
COVINGTON AL-
1148 AM CDT WED JUL 29 2015

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHWESTERN COVINGTON IN SOUTH CENTRAL ALABAMA UNTIL 1245 PM CDT...

AT 1147 AM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER RIVER
FALLS...OR NEAR ANDALUSIA...MOVING SOUTH AT 10 MPH.

LOCATIONS IMPACTED INCLUDE...
ANDALUSIA...           RIVER FALLS...         LOCKHART...
CAROLINA...            HEATH...               LIBERTYVILLE...

THE PRIMARY THREATS FROM THIS STORM ARE WIND GUSTS UP TO 50 MPH.
WINDS THIS STRONG COULD BLOW OFF TREE LIMBS AND ALSO BLOW AROUND
SMALL UNSECURED OBJECTS. SEEK SHELTER UNTIL THIS STORM HAS PASSED.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
MOBILE.

LAT...LON 3099 8663 3100 8670 3127 8670 3141 8665
      3137 8644 3099 8633
TIME...MOT...LOC 1647Z 013DEG 7KT 3132 8657

BUTTS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 1:17 PM CDTSevere Thunderstorm WarningMOBCovington27 min
Jul 29, 1:23 PM CDTSpecial Weather StatementMOBWilcox52 min
Jul 29, 1:52 PM CDTSpecial Weather StatementMOBMobile53 min
Jul 29, 1:58 PM CDTSpecial Marine WarningMOB92 min
Jul 29, 2:35 PM CDTSpecial Marine WarningMOB55 min
Jul 29, 2:48 PM CDTSpecial Weather StatementMOBClarke, Washington42 min
Jul 29, 2:51 PM CDTSpecial Marine WarningMOB84 min
Jul 29, 2:52 PM CDTSpecial Marine WarningMOB83 min
Jul 29, 3:18 PM CDTSpecial Marine WarningMOB57 min
Jul 29, 3:35 PM CDTSpecial Marine WarningMOB40 min
Jul 29, 3:39 PM CDTSpecial Weather StatementMOBCovington66 min
Jul 29, 4:10 PM CDTSpecial Marine WarningMOB65 min
Jul 29, 4:39 PM CDTSpecial Marine WarningMOB81 min
Jul 29, 4:41 PM CDTSpecial Marine WarningMOB64 min
Jul 29, 4:59 PM CDTSpecial Weather StatementMOBBaldwin, Mobile46 min
Jul 29, 5:16 PM CDTSpecial Marine WarningMOB59 min
Jul 29, 12:48 PM CDTSpecial Weather StatementMOBOkaloosa57 min
Jul 29, 2:32 PM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa58 min
Jul 29, 3:21 PM CDTSpecial Weather StatementMOBEscambia54 min
Jul 29, 4:35 PM CDTSpecial Weather StatementMOBOkaloosa55 min

Nearby

Special Weather Statements in Alabama, 2015Every special weather statement in 2015

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.