Alert archive / Alabama / Special Weather Statements in 2015

Special Weather Statement, NWS Mobile, AL

July 17, 2015Mobile County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 17, 2015, 5:25 PM CDT for Mobile County, Alabama. It was in force for 65 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 17, 2015, 5:25 PM CDT (22:25 UTC)
Expired
Jul 17, 2015, 6:30 PM CDT
In force
65 min
Issued by
NWS Mobile, AL

County Mobile County, AL

The radar

The Mobile radar (KMOB), 27 km from the middle of the area, began a volume at 22:27 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.4 hours before the alert went out and 144 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, Slidell Radar S, LA at 12:00Z on 2015-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1220 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, Slidell Radar S, LA at 12:00Z on 2015-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -63 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
1220 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
981 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-63 m²/s²
0-3 km storm-relative helicity
-40 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 17, 4:35 PM CDT, 50 minutes earlier.

Area forecast discussion, Jul 17, 4:35 PM CDT, 50 minutes before
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Hazardous weather outlook, Jul 17, 5:53 AM CDT, 11 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOBILE AL
553 AM CDT FRI JUL 17 2015

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-181100-
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-
553 AM CDT FRI JUL 17 2015

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

.DAY ONE...TODAY AND TONIGHT

HEAT INDEX VALUES AROUND 108 CAN BE EXPECTED THIS AFTERNOON.

THERE IS A MODERATE RISK OF RIP CURRENTS AT AREA BEACHES TODAY.

SOME STORMS MAY BE STRONG THIS AFTERNOON AND PRODUCE STRONG WIND
GUSTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

HEAT INDEX VALUES AROUND 110 CAN BE EXPECTED EACH AFTERNOON THROUGH
MONDAY WITH HEAT INDEX VALUES AROUND 108 ON TUESDAY.

THERE IS A MODERATE RISK OF RIP CURRENTS AT AREA BEACHES THROUGH
SUNDAY.

SOME STORMS MAY BE STRONG EACH AFTERNOON AND PRODUCE STRONG WIND
GUSTS.

.SPOTTER INFORMATION STATEMENT...

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

GMZ630>635-650-655-670-675-181100-
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-
553 AM CDT FRI JUL 17 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 HIGHER NEAR ISOLATED TO SCATTERED STORMS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

WINDS AND SEAS HIGHER NEAR ISOLATED TO SCATTERED STORMS EACH DAY.

In the hours before

Special weather statement, Jul 17, 3:17 PM CDT, 2 hours 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
317 PM CDT FRI JUL 17 2015

ALZ264-266-172115-
BALDWIN COASTAL AL-BALDWIN CENTRAL AL-
317 PM CDT FRI JUL 17 2015

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...COASTAL
BALDWIN AND CENTRAL BALDWIN IN SOUTHWEST ALABAMA UNTIL 415 PM CDT...

AT 317 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR FOLEY...MOVING
SOUTH AT 5 MPH.

LOCATIONS IMPACTED INCLUDE...
FOLEY...               ORANGE BEACH...        ELBERTA...
MAGNOLIA SPRINGS...    BON SECOUR...

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.

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 WIRED
TELEPHONES DIRECTLY CONNECTED TO OUTSIDE PHONE LINES.

LAT...LON 3023 8783 3025 8782 3029 8775 3034 8782
      3043 8781 3044 8760 3033 8759 3036 8760
      3034 8761 3032 8759 3035 8758 3031 8757
      3030 8762 3030 8757 3028 8756 3024 8780
TIME...MOT...LOC 2017Z 356DEG 6KT 3037 8770
Special weather statement, Jul 17, 3:56 PM CDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
356 PM CDT FRI JUL 17 2015

ALZ264-266-172200-
BALDWIN COASTAL AL-BALDWIN CENTRAL AL-
356 PM CDT FRI JUL 17 2015

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING LOCATIONS...COASTAL
BALDWIN AND CENTRAL BALDWIN IN SOUTHWEST ALABAMA UNTIL 500 PM CDT...

AT 352 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER SILVERHILL...
OR OVER ROBERTSDALE...MOVING SOUTHWEST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
FAIRHOPE...            FOLEY...               ROBERTSDALE...
LOXLEY...              POINT CLEAR...         SUMMERDALE...
MAGNOLIA SPRINGS...    SILVERHILL...

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.

LAT...LON 3024 8797 3034 8782 3036 8784 3038 8783
      3039 8781 3041 8782 3042 8783 3039 8785
      3039 8784 3038 8784 3038 8787 3041 8791
      3047 8792 3048 8794 3054 8790 3057 8791
      3068 8776 3056 8761 3023 8789 3023 8796
TIME...MOT...LOC 2052Z 043DEG 17KT 3057 8775
Special weather statement, Jul 17, 5:11 PM CDT, 14 minutes before
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Special weather statement, Jul 17, 5:25 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
Jul 17, 6:59 AM CDTSpecial Marine WarningMOB61 min
Jul 17, 1:50 PM CDTSpecial Marine WarningMOB55 min
Jul 17, 3:17 PM CDTSpecial Weather StatementMOBBaldwin58 min
Jul 17, 3:33 PM CDTHeat AdvisoryMOBBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more27 hr
Jul 17, 3:46 PM CDTSpecial Marine WarningMOB59 min
Jul 17, 3:56 PM CDTSpecial Weather StatementMOBBaldwin64 min
Jul 17, 4:03 PM CDTSevere Thunderstorm WarningMOBBaldwin29 min
Jul 17, 4:19 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile56 min
Jul 17, 4:43 PM CDTSpecial Marine WarningMOB62 min
Jul 17, 5:11 PM CDTSpecial Weather StatementMOBWashington49 min
Jul 17, 5:31 PM CDTSpecial Marine WarningMOB59 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.