Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Mobile, AL

June 11, 2017Choctaw County, Alabama

NWS Mobile, AL issued this special weather statement at Jun 11, 2017, 4:19 PM CDT for Choctaw County, Alabama. It was in force for 41 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
Jun 11, 2017, 4:19 PM CDT (21:19 UTC)
Expired
Jun 11, 2017, 5:00 PM CDT
In force
41 min
Issued by
NWS Mobile, AL

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 162 km from the middle of the area, began a volume at 21:20 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, 9.3 hours before the alert went out and 167 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 2017-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1239 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
134 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 Jun 11, 3:09 PM CDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jun 11, 3:09 PM CDT, 1 hour 10 minutes before
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Hazardous weather outlook, Jun 11, 5:21 AM CDT, 10 hours 58 minutes before
Hazardous Weather Outlook
National Weather Service Mobile AL
521 AM CDT Sun Jun 11 2017

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-121030-
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-
521 AM CDT Sun Jun 11 2017

This Hazardous Weather Outlook is for portions of south central
Alabama...southwest Alabama...northwest Florida and southeast
Mississippi.

.DAY ONE...Today and Tonight

There is a Moderate Risk of rip currents along the Alabama and
northwest Florida beaches today and tonight.

No other hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There will be a Moderate Risk of rip currents along the Alabama and
northwest Florida beaches on Monday.

No other hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Activation of SkyWarn Severe Storm Spotter networks is not
expected through Saturday.

GMZ630>635-650-655-670-675-121030-
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-
521 AM CDT Sun Jun 11 2017

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, Jun 11, 2:48 PM CDT, 1 hour 31 minutes before
Special Weather Statement
National Weather Service Mobile AL
248 PM CDT SUN JUN 11 2017

ALZ060-112030-
Covington AL-
248 PM CDT SUN JUN 11 2017

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

At 247 PM CDT, a cluster of strong thunderstorms was located 10
miles southeast of Andalusia, moving north at 20 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Andalusia, Opp, River Falls, Heath and Gantt.

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.

Additional statements will be issued as conditions warrant.

&&

LAT...LON 3140 8620 3110 8628 3109 8649 3152 8659
      3153 8640 3145 8640 3149 8636 3149 8634
      3153 8630 3153 8628 3146 8628 3145 8626
      3144 8626 3144 8619
TIME...MOT...LOC 1947Z 173DEG 18KT 3118 8640

Butts
Special weather statement, Jun 11, 3:04 PM CDT, 1 hour 15 minutes before
Special Weather Statement
National Weather Service Mobile AL
304 PM CDT SUN JUN 11 2017

ALZ053-112030-
Clarke AL-
304 PM CDT SUN JUN 11 2017

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

At 303 PM CDT, the strong thunderstorm was located 8 miles southeast
of Jackson, moving north at 15 mph.

Half inch hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Jackson and Whatley.

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 3141 8769 3140 8771 3139 8782 3162 8796
      3167 8765
TIME...MOT...LOC 2003Z 169DEG 12KT 3145 8777
Special weather statement, Jun 11, 4:19 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
Jun 11, 2:48 PM CDTSpecial Weather StatementMOBCovington42 min
Jun 11, 3:04 PM CDTSpecial Weather StatementMOBClarke26 min
Jun 11, 4:32 PM CDTSpecial Weather StatementMOBMonroe43 min

Nearby

Special Weather Statements in Alabama, 2017Every special weather statement in 2017

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.