Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Mobile, AL

July 10, 2017Choctaw County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 10, 2017, 3:22 PM CDT for Choctaw County, Alabama. It was in force for 38 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 10, 2017, 3:22 PM CDT (20:22 UTC)
Expired: Jul 10, 2017, 4:00 PM CDT
In force: 38 min
Issued by: NWS Mobile, AL

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 142 km from the middle of the area, began a volume at 20:24 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, 8.4 hours before the alert went out and 182 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1605 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 4 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 Jul 10, 12:33 PM CDT, 2 hours 49 minutes earlier.

Area forecast discussion, Jul 10, 12:33 PM CDT, 2 hours 49 minutes before

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</head>
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Hazardous weather outlook, Jul 10, 5:29 AM CDT, 9 hours 53 minutes before

Hazardous Weather Outlook
National Weather Service Mobile AL
529 AM CDT Mon Jul 10 2017

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-111030-
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-
529 AM CDT Mon Jul 10 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 will be a continued chance of showers and thunderstorms
across much of the region today. A few of the stronger storms that
develop will be capable of producing locally strong wind gusts,
frequent lightning strikes and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

There will be a chance of showers and thunderstorms each day
through the period. A few of the stronger storms will be capable
of producing brief strong wind gusts, frequent lightning strikes
and locally heavy rains.

.SPOTTER INFORMATION STATEMENT...

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

GMZ630>635-650-655-670-675-111030-
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-
529 AM CDT Mon Jul 10 2017

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 locally higher near isolated to scattered
showers and thunderstorms. Frequent lightning will be likely in
and near the stronger storms. Isolated waterspouts will also be
possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Winds and seas will be locally higher near isolated to scattered
storms through the weekend. Frequent lightning will be likely in
and near the stronger storms that develop.

In the hours before

Special weather statement, Jul 10, 3:22 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Mobile AL
322 PM CDT MON JUL 10 2017

ALZ051-053-102100-
Clarke AL-Choctaw AL-
322 PM CDT MON JUL 10 2017

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...SOUTH
CENTRAL CHOCTAW AND NORTHWESTERN CLARKE COUNTIES UNTIL 400 PM CDT...

At 321 PM CDT, the strong thunderstorm was located 10 miles southwest
of Putnam, or 13 miles south of Butler, moving east at 20 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

This storm will remain over mainly rural areas of south central
Choctaw and northwestern Clarke Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3199 8807 3199 8780 3181 8777 3180 8825
      3196 8825 3200 8811 3199 8810 3201 8809
TIME...MOT...LOC 2021Z 260DEG 15KT 3191 8813

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 4:35 PM CDT	Special Weather Statement	MOB	Escambia	25 min
Jul 10, 4:38 PM CDT	Special Weather Statement	MOB	Covington	37 min
Jul 10, 4:42 PM CDT	Special Weather Statement	MOB	Clarke	33 min
Jul 10, 6:14 PM CDT	Special Weather Statement	MOB	Escambia	31 min

Nearby

Special Weather Statements in Alabama, 2017 Every 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.