Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Mobile, AL

June 30, 2017Covington County, Alabama

NWS Mobile, AL issued this special weather statement at Jun 30, 2017, 1:15 PM CDT for Covington County, Alabama. It was in force for 45 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 30, 2017, 1:15 PM CDT (18:15 UTC)
Expired: Jun 30, 2017, 2:00 PM CDT
In force: 45 min
Issued by: NWS Mobile, AL

County Covington County, AL

The radar

The Eglin Afb radar (KEVX), 69 km from the middle of the area, began a volume at 18:15 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, 6.3 hours before the alert went out and 208 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: 1173 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 742 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 45 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 30, 6:39 AM CDT, 6 hours 36 minutes earlier.

Area forecast discussion, Jun 30, 6:39 AM CDT, 6 hours 36 minutes before

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Hazardous weather outlook, Jun 30, 4:31 AM CDT, 8 hours 44 minutes before

Hazardous Weather Outlook
National Weather Service Mobile AL
431 AM CDT Fri Jun 30 2017

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-011200-
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-
431 AM CDT Fri Jun 30 2017

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 again
today. The stronger storms will produce frequent lightning and
locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A daily chance of mainly afternoon scattered showers and
thunderstorms will remain in the forecast through next week. The
stronger storms will produce frequent lightning and torrential
downpours.

.SPOTTER INFORMATION STATEMENT...

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

GMZ630>635-650-655-670-675-011200-
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-
431 AM CDT Fri Jun 30 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...Saturday through Thursday

No hazardous weather is expected at this time.

In the hours before

Special weather statement, Jun 30, 1:15 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Mobile AL
115 PM CDT FRI JUN 30 2017

ALZ060-301900-
Covington AL-
115 PM CDT FRI JUN 30 2017

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHEASTERN COVINGTON COUNTY UNTIL 200 PM CDT...

At 114 PM CDT, the strong thunderstorm was located near Lockhart, or
7 miles northwest of Florala, moving northeast at 30 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Opp, Florala and Lockhart.

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 3099 8627 3100 8654 3115 8653 3134 8620
      3100 8619
TIME...MOT...LOC 1814Z 245DEG 28KT 3110 8640

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 7:21 PM CDT	Special Weather Statement	MOB	Conecuh, Covington	39 min
Jun 29, 8:09 PM CDT	Special Weather Statement	MOB	Covington, Crenshaw	66 min
Jun 29, 11:08 PM CDT	Special Marine Warning	MOB		37 min
Jun 29, 11:32 PM CDT	Tornado Warning	MOB	Mobile	28 min
Jun 30, 12:03 AM CDT	Special Weather Statement	MOB	Mobile	57 min
Jun 30, 12:45 AM CDT	Flash Flood Warning	MOB	Mobile	4 hr
Jun 30, 5:28 AM CDT	River Flood Warning	MOB	Covington, Escambia	35 hr
Jun 30, 3:21 PM CDT	Special Weather Statement	MOB	Washington	24 min
Jun 30, 3:30 PM CDT	Special Weather Statement	MOB	Monroe	30 min
Jun 30, 5:25 PM CDT	Special Weather Statement	MOB	Choctaw, Clarke	65 min
Jun 30, 5:39 PM CDT	Special Weather Statement	MOB	Conecuh	36 min
Jun 30, 6:30 PM CDT	Areal Flood Advisory	MOB	Clarke, Washington	2 hr
Jun 30, 12:11 AM CDT	Flash Flood Warning	MOB	Santa Rosa	6 hr
Jun 30, 12:32 AM CDT	Special Weather Statement	MOB	Santa Rosa	58 min
Jun 30, 1:17 AM CDT	Flash Flood Warning	MOB	Okaloosa	5 hr
Jun 30, 3:47 AM CDT	Flash Flood Warning	MOB	Santa Rosa	2 hr
Jun 30, 6:06 AM CDT	Areal Flood Warning	MOB	Okaloosa, Santa Rosa	12 hr
Jun 30, 9:02 AM CDT	River Flood Warning	MOB	Okaloosa	58 hr
Jun 30, 5:18 PM CDT	Special Weather Statement	MOB	Greene	42 min
Jun 30, 6:41 PM CDT	Areal Flood Advisory	MOB	Greene, Perry	2 hr

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.