Alert archive / Alabama / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 39, NWS Mobile, AL

March 4, 20204 counties in Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 4, 2020, 7:54 AM CST for 4 counties in Alabama. It was in force for 51 min. 2 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
Mar 4, 2020, 7:54 AM CST (13:54 UTC)
Expired
Mar 4, 2020, 8:45 AM CST
In force
51 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Conecuh County, AL, Covington County, AL, Escambia County, AL, Monroe County, AL

The radar

The Eglin Afb radar (KEVX), 122 km from the middle of the area, began a volume at 13:53 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
Mar 4, 7:56 AM CSTTSTM WND DMG4 Ese Sardine, ALMULTIPLE TREES UPROOTED. PICTURES VIA SOCIAL MEDIA.
Mar 4, 8:10 AM CSTTSTM WND DMG1 N Brewton, ALMULTIPLE TREES AND POWER LINES DOWN ON BELLEVILLE AVE AND EVERGREEN AVE IN BREWTON. FEW HOMES WITH ROOF DAMAGE. TIME ESTIMATED BY RADAR AND REPORT VIA SOCIAL MEDIA.

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
Mar 4, 1:53 AM CSTTornado WatchSPC8 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 1.9 hours before the alert went out and 211 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 2020-03-04Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2020-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -166 square meters per square second.1939587897117Sfc1 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
1091 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-166 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

069 
WUUS54 KMOB 041354
SVRMOB
ALC035-039-053-099-041445-
/O.NEW.KMOB.SV.W.0039.200304T1354Z-200304T1445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
754 AM CST Wed Mar 4 2020

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Central Monroe County in south central Alabama...
  Central Escambia County in south central Alabama...
  Conecuh County in south central Alabama...
  Northwestern Covington County in south central Alabama...

* Until 845 AM CST.

* At 754 AM CST, severe thunderstorms were located along a line
  extending from Repton to 4 miles east of I65 And AL 113 to 7 miles
  northwest of Flomaton, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Brewton, Evergreen, East Brewton, River Falls, Castleberry, Red
  Level, Repton, Riverview, I65 And US 84 and I65 And AL 113.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 AM CST for south central
Alabama.

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

&&

LAT...LON 3108 8672 3104 8740 3120 8733 3146 8729
      3153 8660 3152 8655 3134 8653
TIME...MOT...LOC 1354Z 257DEG 39KT 3141 8724 3122 8724 3108 8734 

HAIL...<.75IN
WIND...60MPH
 
$$
3 follow-up statements
780 
WWUS54 KMOB 041406
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
806 AM CST Wed Mar 4 2020

ALC099-041415-
/O.CAN.KMOB.SV.W.0039.000000T0000Z-200304T1445Z/
Monroe AL-
806 AM CST Wed Mar 4 2020

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MONROE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 AM CST for south central
Alabama.

LAT...LON 3108 8672 3108 8720 3121 8717 3146 8713
      3152 8660 3152 8655 3134 8653
TIME...MOT...LOC 1405Z 270DEG 45KT 3142 8703 3123 8703 3109 8713 

$$

ALC035-039-053-041445-
/O.CON.KMOB.SV.W.0039.000000T0000Z-200304T1445Z/
Escambia AL-Conecuh AL-Covington AL-
806 AM CST Wed Mar 4 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CST
FOR NORTHEASTERN ESCAMBIA...SOUTHEASTERN CONECUH AND NORTHWESTERN
COVINGTON COUNTIES...

At 805 AM CST, severe thunderstorms were located along a line
extending from I65 And US 84 to 5 miles south of Castleberry to 3
miles west of Brewton, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Brewton, Evergreen, East Brewton, River Falls, Castleberry, Red Level
and I65 And US 84.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 AM CST for south central
Alabama.

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

&&

LAT...LON 3108 8672 3108 8720 3121 8717 3146 8713
      3152 8660 3152 8655 3134 8653
TIME...MOT...LOC 1405Z 270DEG 45KT 3142 8703 3123 8703 3109 8713 

HAIL...<.75IN
WIND...60MPH
 
$$
948 
WWUS54 KMOB 041415
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
815 AM CST Wed Mar 4 2020

ALC035-039-053-041445-
/O.CON.KMOB.SV.W.0039.000000T0000Z-200304T1445Z/
Escambia AL-Conecuh AL-Covington AL-
815 AM CST Wed Mar 4 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CST
FOR NORTHEASTERN ESCAMBIA...SOUTHEASTERN CONECUH AND NORTHWESTERN
COVINGTON COUNTIES...

At 815 AM CST, severe thunderstorms were located along a line
extending from 3 miles east of Evergreen to 8 miles southeast of
Castleberry to 5 miles east of East Brewton, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Brewton, Evergreen, East Brewton, River Falls, Castleberry and Red
Level.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 AM CST for south central
Alabama.

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

&&

LAT...LON 3108 8672 3108 8711 3120 8708 3145 8699
      3152 8660 3152 8655 3134 8653
TIME...MOT...LOC 1415Z 274DEG 42KT 3142 8690 3121 8692 3108 8698 

HAIL...<.75IN
WIND...60MPH
 
$$
044 
WWUS54 KMOB 041429
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
829 AM CST Wed Mar 4 2020

ALC035-039-053-041445-
/O.CON.KMOB.SV.W.0039.000000T0000Z-200304T1445Z/
Escambia AL-Conecuh AL-Covington AL-
829 AM CST Wed Mar 4 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CST
FOR NORTHEASTERN ESCAMBIA...SOUTHEASTERN CONECUH AND NORTHWESTERN
COVINGTON COUNTIES...

At 827 AM CST, severe thunderstorms were located along a line
extending from 6 miles west of Red Level to 15 miles southwest of
River Falls to 11 miles east of Riverview, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Public. At 815 AM, trees were reported down and a few 
         homes had minor damage in Brewton.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
River Falls and Red Level. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 AM CST for south central
Alabama.

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

&&

LAT...LON 3108 8672 3108 8698 3120 8691 3148 8680
      3152 8660 3152 8655 3134 8653
TIME...MOT...LOC 1427Z 272DEG 41KT 3142 8672 3122 8675 3109 8686 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 4, 1:22 AM CSTDense Fog AdvisoryMOBBaldwin, Mobile8 hr
Mar 4, 3:57 AM CSTSevere Thunderstorm WarningMOBChoctaw48 min
Mar 4, 4:11 AM CSTSevere Thunderstorm WarningMOBChoctaw49 min
Mar 4, 4:39 AM CSTSpecial Weather StatementMOBClarke51 min
Mar 4, 4:55 AM CSTSevere Thunderstorm WarningMOBClarke50 min
Mar 4, 5:15 AM CSTSevere Thunderstorm WarningMOBWilcox45 min
Mar 4, 5:26 AM CSTAreal Flood AdvisoryMOBClarke, Wilcox3 hr
Mar 4, 5:52 AM CSTSevere Thunderstorm WarningMOBWilcox38 min
Mar 4, 6:14 AM CSTSevere Thunderstorm WarningMOBWashington46 min
Mar 4, 6:18 AM CSTSevere Thunderstorm WarningMOBButler, Crenshaw, Monroe, Wilcox57 min
Mar 4, 6:41 AM CSTAreal Flood AdvisoryMOBButler, Crenshaw3 hr
Mar 4, 6:57 AM CSTSpecial Weather StatementMOBWashington48 min
Mar 4, 8:36 AM CSTSevere Thunderstorm WarningMOBCovington39 min
Mar 4, 9:21 AM CSTAreal Flood AdvisoryMOBCovington3 hr
Mar 4, 11:43 AM CSTSpecial Weather StatementMOBChoctaw47 min
Mar 4, 12:30 PM CSTAreal Flood WarningMOBButler, Choctaw, Clarke, Conecuh, Crenshaw, Monroe and 1 more18 hr
Mar 4, 12:43 PM CSTSpecial Weather StatementMOBCovington32 min
Mar 4, 3:16 PM CSTSmall Craft AdvisoryMOB66 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2020Every severe thunderstorm warning in 2020

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.