Alert archive / Florida / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 13, NWS Mobile, AL

January 11, 2020Escambia County, Okaloosa County, Santa Rosa County, Florida; Baldwin County, Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jan 11, 2020, 1:47 PM CST for Escambia County, Okaloosa County, Santa Rosa County, Florida; Baldwin County, Escambia County, Alabama. It was in force for 43 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
Jan 11, 2020, 1:47 PM CST (19:47 UTC)
Expired
Jan 11, 2020, 2:30 PM CST
In force
43 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Baldwin County, AL, Escambia County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 109 km from the middle of the area, began a volume at 19:49 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
Jan 11, 1:57 PM CSTTSTM WND DMGAppleton, ALBROADCAST MEDIA RELAYED A REPORT OF TREES DOWN IN THE COMMUNITY OF APPLETON.
Jan 11, 1:57 PM CSTTSTM WND DMGAppleton, ALTREES DOWN IN THE COMMUNITY OF APPLETON. REPORT RELAYED THROUGH SOCIAL MEDIA.
Jan 11, 2:07 PM CSTTSTM WND DMG3 N Brewton, ALPICTURE OF A LARGE TREE DOWN ON CHEROKEE LANE. REPORT VIA SOCIAL MEDIA.
Jan 11, 2:15 PM CSTTSTM WND DMG5 Ene Jay, FLREPORTS OF TREES AND POWER LINES DOWN ON DIXONVILLE ROAD. 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
Jan 11, 7:57 AM CSTTornado WatchSPC9 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.8 hours before the alert went out and 237 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 2020-01-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 joules per kilogram.LCLLFCEL10008507005003002001001 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 2020-01-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 364 square meters per square second.1939587897Sfc1 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
53 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
729 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
364 m²/s²
0-3 km storm-relative helicity
587 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

353 
WUUS54 KMOB 111947
SVRMOB
ALC003-053-FLC033-091-113-112030-
/O.NEW.KMOB.SV.W.0013.200111T1947Z-200111T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
147 PM CST Sat Jan 11 2020

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southeastern Baldwin County in southwestern Alabama...
  Escambia County in south central Alabama...
  Northwestern Okaloosa County in northwestern Florida...
  Santa Rosa County in northwestern Florida...
  Escambia County in northwestern Florida...

* Until 230 PM CST.

* At 147 PM CST, severe thunderstorms were located along a line
  extending from 9 miles east of I65 And AL 113 to 3 miles east of
  Orange Beach, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Pensacola, Ferry Pass, Brent, West Pensacola, Ensley, Warrington,
  Gonzalez, Pace, Milton, Gulf Breeze, Brewton, Orange Beach,
  Goulding, Century, Flomaton, Bagdad, Lillian, Myrtle Grove, Oriole
  Beach and East Brewton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 PM CST for south central
and southwestern Alabama...and northwestern Florida.

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

&&

LAT...LON 3126 8723 3126 8677 3120 8677 3119 8676
      3119 8675 3118 8672 3119 8672 3119 8670
      3113 8670 3034 8699 3024 8764
TIME...MOT...LOC 1947Z 256DEG 38KT 3124 8716 3027 8752 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
360 
WWUS54 KMOB 112014
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
214 PM CST Sat Jan 11 2020

ALC003-112023-
/O.CAN.KMOB.SV.W.0013.000000T0000Z-200111T2030Z/
Baldwin AL-
214 PM CST Sat Jan 11 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BALDWIN COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area.

A Tornado Watch remains in effect until 400 PM CST for south central
and southwestern Alabama...and northwestern Florida.

LAT...LON 3029 8745 3126 8711 3126 8677 3120 8677
      3118 8672 3119 8670 3113 8670 3034 8699
TIME...MOT...LOC 2013Z 274DEG 34KT 3126 8692 3029 8728 

$$

ALC053-FLC033-091-113-112030-
/O.CON.KMOB.SV.W.0013.000000T0000Z-200111T2030Z/
Escambia AL-Okaloosa FL-Santa Rosa FL-Escambia FL-
214 PM CST Sat Jan 11 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CST
FOR EASTERN ESCAMBIA...NORTHWESTERN OKALOOSA...SANTA ROSA AND EASTERN
ESCAMBIA COUNTIES...

At 213 PM CST, severe thunderstorms were located along a line
extending from 6 miles southeast of Castleberry to 6 miles south of
Warrington, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Pensacola, Ferry Pass, Brent, West Pensacola, Ensley, Warrington,
Gonzalez, Pace, Milton, Gulf Breeze, Brewton, Goulding, Bagdad,
Myrtle Grove, Oriole Beach, East Brewton, Jay, Pollard, Riverview and
Pensacola Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 400 PM CST for south central
and southwestern Alabama...and northwestern Florida.

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

&&

LAT...LON 3029 8745 3126 8711 3126 8677 3120 8677
      3118 8672 3119 8670 3113 8670 3034 8699
TIME...MOT...LOC 2013Z 274DEG 34KT 3126 8692 3029 8728 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 11, 12:34 PM CSTSevere Thunderstorm WarningMOBEscambia41 min
Jan 11, 1:10 PM CSTSevere Thunderstorm WarningMOBEscambia, Santa Rosa50 min
Jan 11, 2:29 PM CSTSevere Thunderstorm WarningMOBEscambia, Okaloosa, Santa Rosa46 min
Jan 11, 2:55 PM CSTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa50 min
Jan 11, 3:44 PM CSTSevere Thunderstorm WarningMOBOkaloosa19 min
Jan 10, 6:51 PM CSTSpecial Weather StatementMOBChoctaw39 min
Jan 11, 10:55 AM CSTSevere Thunderstorm WarningMOBChoctaw, Washington50 min
Jan 11, 11:43 AM CSTSpecial Weather StatementMOBWashington62 min
Jan 11, 11:52 AM CSTSpecial Weather StatementMOBChoctaw, Washington38 min
Jan 11, 11:54 AM CSTSevere Thunderstorm WarningMOBMobile, Washington51 min
Jan 11, 12:02 PM CSTSpecial Marine WarningMOB88 min
Jan 11, 12:09 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe, Wilcox51 min
Jan 11, 12:24 PM CSTSevere Thunderstorm WarningMOBBaldwin, Clarke, Escambia, Mobile, Monroe, Washington51 min
Jan 11, 12:28 PM CSTSevere Thunderstorm WarningMOBClarke, Monroe, Wilcox47 min
Jan 11, 1:07 PM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Monroe, Wilcox53 min
Jan 11, 1:13 PM CSTSpecial Marine WarningMOB92 min
Jan 11, 1:36 PM CSTSpecial Marine WarningMOB84 min
Jan 11, 1:52 PM CSTSpecial Marine WarningMOB83 min
Jan 11, 1:54 PM CSTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw51 min
Jan 11, 2:39 PM CSTSevere Thunderstorm WarningMOBButler, Covington, Crenshaw51 min
Jan 11, 2:47 PM CSTSpecial Marine WarningMOB88 min
Jan 11, 3:12 PM CSTSevere Thunderstorm WarningMOBCovington34 min
Jan 11, 4:08 PM CSTSpecial Marine WarningMOB97 min

Nearby

Severe Thunderstorm Warnings in Florida, 2020Severe 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.