Alert archive / Alabama / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 82, NWS Mobile, AL

July 22, 2018Covington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 22, 2018, 1:21 PM CDT for Covington County, Alabama. It was in force for 39 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 22, 2018, 1:21 PM CDT (18:21 UTC)
Expired
Jul 22, 2018, 2:00 PM CDT
In force
39 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Covington County, AL

The radar

The Eglin Afb radar (KEVX), 78 km from the middle of the area, began a volume at 18:25 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.

What was reported inside it

TimeReportWhereRemark
Jul 22, 1:25 PM CDTHAIL 2.5Andalusia, ALSEVERAL REPORTS AND PICTURES OF AT LEAST TENNIS BALL SIZE HAIL NEAR ANDALUSIA, AL. PICTURES AND REPORTS VIA SOCIAL MEDIA.
Jul 22, 1:30 PM CDTHAIL 2.5Babbie, ALPICTURES ON SOCIAL MEDIA OF GOLF BALL TO TENNIS BALL SIZE HAIL IN THE BABBIE COMMUNITY.
Jul 22, 1:35 PM CDTHAIL 1Carolina, ALPICTURES AND VIDEOS FOUND ON SOCIAL MEDIA OF QUARTER SIZE HAIL FALLING IN THE CAROLINA COMMUNITY.
Jul 22, 1:36 PM CDTHAIL 1.251 Nw Opp, ALHALF DOLLAR SIZE HAIL REPORTED IN OPP. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 22, 11:57 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.4 hours before the alert went out and 213 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, Tallahassee Rgnl, FL at 12:00Z on 2018-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3735 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, Tallahassee Rgnl, FL at 12:00Z on 2018-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 square meters per square second.193958Sfc1 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
3735 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
715 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
1.1
Supercell composite
7.6

Open this sounding in Storm Lab

The text

As transmitted.

131 
WUUS54 KMOB 221821
SVRMOB
ALC039-221900-
/O.NEW.KMOB.SV.W.0082.180722T1821Z-180722T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
121 PM CDT SUN JUL 22 2018

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Eastern Covington County in south central Alabama...

* Until 200 PM CDT.

* At 120 PM CDT, a severe thunderstorm was located 4 miles east of
  Andalusia, moving southeast at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Andalusia, Opp, Florala, Lockhart and Heath. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3099 8639 3100 8642 3131 8657 3146 8630
      3136 8619 3100 8619
TIME...MOT...LOC 1820Z 329DEG 33KT 3130 8640 

HAIL...1.00IN
WIND...60MPH
 
$$
2 follow-up statements
430 
WWUS54 KMOB 221841
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
141 PM CDT SUN JUL 22 2018

ALC039-221900-
/O.CON.KMOB.SV.W.0082.000000T0000Z-180722T1900Z/
Covington AL-
141 PM CDT SUN JUL 22 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT
FOR EASTERN COVINGTON COUNTY...

At 141 PM CDT, a severe thunderstorm was located 8 miles southwest of
Opp, moving southeast at 25 mph.

HAZARD...Two inch hail and 70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

&&

LAT...LON 3099 8639 3100 8642 3131 8657 3146 8630
      3136 8619 3100 8619
TIME...MOT...LOC 1841Z 333DEG 22KT 3117 8632 

HAIL...2.00IN
WIND...70MPH
 
$$
994 
WWUS54 KMOB 221845
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
145 PM CDT SUN JUL 22 2018

ALC039-221900-
/O.CON.KMOB.SV.W.0082.000000T0000Z-180722T1900Z/
Covington AL-
145 PM CDT SUN JUL 22 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT
FOR EASTERN COVINGTON COUNTY...

At 144 PM CDT, a severe thunderstorm was located 9 miles north of
Lockhart, or 9 miles north of Florala, moving southeast at 40 mph.

HAZARD...Two inch hail and 70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

&&

LAT...LON 3099 8639 3100 8642 3131 8657 3146 8630
      3136 8619 3100 8619
TIME...MOT...LOC 1844Z 329DEG 33KT 3114 8630 

TORNADO...POSSIBLE
HAIL...2.00IN
WIND...70MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 10:08 PM CDTSpecial Weather StatementMOBMonroe67 min
Jul 21, 10:18 PM CDTSevere Thunderstorm WarningMOBClarke, Conecuh, Monroe, Wilcox57 min
Jul 21, 10:47 PM CDTSpecial Weather StatementMOBConecuh28 min
Jul 21, 11:05 PM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw40 min
Jul 21, 11:40 PM CDTSevere Thunderstorm WarningMOBButler, Covington, Crenshaw35 min
Jul 22, 2:25 AM CDTSpecial Weather StatementMOBButler, Covington65 min
Jul 22, 3:22 AM CDTRip Current StatementMOBBaldwin, Mobile24 hr
Jul 22, 10:50 AM CDTSpecial Weather StatementMOBChoctaw, Wilcox40 min
Jul 22, 11:20 AM CDTSevere Thunderstorm WarningMOBChoctaw14 min
Jul 22, 11:33 AM CDTSpecial Weather StatementMOBChoctaw, Clarke, Wilcox42 min
Jul 22, 11:40 AM CDTSevere Thunderstorm WarningMOBClarke, Wilcox65 min
Jul 22, 12:06 PM CDTSevere Thunderstorm WarningMOBClarke54 min
Jul 22, 12:33 PM CDTSevere Thunderstorm WarningMOBClarke, Monroe, Wilcox23 min
Jul 22, 12:35 PM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington15 min
Jul 22, 12:47 PM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw41 min
Jul 22, 12:54 PM CDTSevere Thunderstorm WarningMOBClarke, Monroe36 min
Jul 22, 1:07 PM CDTSpecial Weather StatementMOBCrenshaw38 min
Jul 22, 1:13 PM CDTSpecial Weather StatementMOBMonroe62 min
Jul 22, 1:18 PM CDTSevere Thunderstorm WarningMOBClarke, Conecuh, Escambia, Monroe18 min
Jul 22, 1:25 PM CDTSpecial Weather StatementMOBButler, Crenshaw80 min
Jul 22, 2:02 PM CDTSevere Thunderstorm WarningMOBCovington58 min
Jul 22, 2:17 PM CDTSpecial Weather StatementMOBClarke43 min
Jul 22, 2:27 PM CDTSevere Thunderstorm WarningMOBClarke, Monroe37 min
Jul 22, 2:29 PM CDTTornado WarningMOBClarke23 min
Jul 22, 3:18 PM CDTSpecial Marine WarningMOB57 min
Jul 22, 6:29 PM CDTSpecial Marine WarningMOB61 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2018Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.