Alert archive / Alabama / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 64, NWS Mobile, AL

June 28, 2018Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jun 28, 2018, 8:32 PM CDT for Baldwin County, Mobile County, Alabama. It was in force for 43 min. 18 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
Jun 28, 2018, 8:32 PM CDT (01:32 UTC)
Expired
Jun 28, 2018, 9:15 PM CDT
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, Mobile County, AL

The radar

The Mobile radar (KMOB), 72 km from the middle of the area, began a volume at 01:32 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
Jun 28, 8:32 PM CDTNON-TSTM WND GST 43Mobile Downtown Airport, ALASOS STATION BFM, MOBILE DOWNTOWN AIRPORT.
Jun 28, 8:33 PM CDTNON-TSTM WND GST 15Daphne, ALMESONET STATION D9947, DAPHNE.
Jun 28, 8:33 PM CDTNON-TSTM WND GST 172 Ese Bon Secour, ALMESONET STATION E5848, 2 ESE BON SECOUR.
Jun 28, 8:35 PM CDTTSTM WND DMG2 Ne Magnolia Grove Gol, ALSEVERAL TREES DOWN EAST OF SEMMES.
Jun 28, 8:35 PM CDTNON-TSTM WND GST 111 S Snow And Tanner Wi, ALMESONET STATION E7714, 1 S SNOW AND TANNER WI.
Jun 28, 8:35 PM CDTNON-TSTM WND GST 32Gulf Shores, ALAWOS STATION JKA, GULF SHORES.
Jun 28, 8:35 PM CDTNON-TSTM WND GST 352 E Point Clear, ALAWOS STATION CQF, 2 E POINT CLEAR.
Jun 28, 8:36 PM CDTNON-TSTM WND GST 244 E Orange Beach, FLMESONET STATION D9919, 4 E ORANGE BEACH.
Jun 28, 8:37 PM CDTNON-TSTM WND GST 31I65 And Airport Bl, ALMESONET STATION E8738, I65 AND AIRPORT BL.
Jun 28, 8:38 PM CDTHIGH SUST WINDS 182 W Miflin, ALMESONET STATION USA10, 2 W MIFLIN.
Jun 28, 8:39 PM CDTNON-TSTM WND GST 22Foley, ALMESONET STATION D1458, FOLEY.
Jun 28, 8:40 PM CDTHIGH SUST WINDS 17Gulf Shores, ALMESONET STATION GSFDP, GULF SHORES.
Jun 28, 8:41 PM CDTNON-TSTM WND GST 182 Ene Romar Beach, ALMESONET STATION D8679, 2 ENE ROMAR BEACH.
Jun 28, 8:43 PM CDTNON-TSTM WND GST 272 Sw Gulf Shores, ALMESONET STATION D2229, 2 SW GULF SHORES.
Jun 28, 8:44 PM CDTNON-TSTM WND GST 122 Nw Tanner Williams, ALMESONET STATION D6471, 2 NW TANNER WILLIAMS.
Jun 28, 8:45 PM CDTNON-TSTM WND GST 14Turkey Branch, ALMESONET STATION WKXA1, TURKEY BRANCH.
Jun 28, 8:55 PM CDTNON-TSTM WND GST 22Dawes, ALMESONET STATION C1353, DAWES.
Jun 28, 9:03 PM CDTNON-TSTM WND GST 182 E Gasque, ALMESONET STATION C4898, 2 E GASQUE.

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
Jun 28, 4:59 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.5 hours before the alert went out and 203 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, Slidell Radar S, LA at 00:00Z on 2018-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2357 joules per kilogram.LCLEL10008507005003002001001 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, Slidell Radar S, LA at 00:00Z on 2018-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 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
2357 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1558 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

717 
WUUS54 KMOB 290132
SVRMOB
ALC003-097-290215-
/O.NEW.KMOB.SV.W.0064.180629T0132Z-180629T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
832 PM CDT THU JUN 28 2018

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Mobile County in southwestern Alabama...
  Southern Baldwin County in southwestern Alabama...

* Until 915 PM CDT.

* At 832 PM CDT, severe thunderstorms were located along a line
  extending from near Wilmer to 3 miles north of Tillmans Corner to
  Elberta, moving southeast at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Midtown Mobile, Downtown Mobile, Prichard, Daphne, Tillmans Corner,
  Fairhope, Saraland, Gulf Shores, Foley, Theodore, Chickasaw, Orange
  Beach, Spanish Fort, Grand Bay, Robertsdale, Bayou La Batre, Point
  Clear, Loxley, Magnolia Springs and Stapleton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3022 8785 3040 8839 3100 8842 3060 8745
      3041 8747 3035 8752 3034 8743 3033 8744
      3032 8743 3032 8750 3031 8744 3031 8745
      3030 8745 3030 8747 3029 8750 3030 8742
      3031 8742 3031 8741 3022 8741
TIME...MOT...LOC 0132Z 332DEG 21KT 3084 8839 3064 8818 3042 8759 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
964 
WWUS54 KMOB 290215
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
915 PM CDT THU JUN 28 2018

ALC003-097-290219-
/O.EXP.KMOB.SV.W.0064.000000T0000Z-180629T0215Z/
Mobile AL-Baldwin AL-
915 PM CDT THU JUN 28 2018

...THE SEVERE THUNDERSTORM WARNING FOR MOBILE AND SOUTHERN BALDWIN
COUNTIES WILL EXPIRE AT 915 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds around 40 mph are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
southwestern Alabama.

LAT...LON 3022 8785 3040 8839 3100 8842 3060 8745
      3041 8747 3035 8752 3034 8743 3033 8744
      3032 8743 3032 8750 3031 8744 3031 8745
      3030 8745 3030 8747 3029 8750 3030 8742
      3031 8742 3031 8741 3022 8741
TIME...MOT...LOC 0209Z 332DEG 21KT 3066 8828 3046 8807 3024 8748 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 7:05 PM CDTSpecial Weather StatementMOBConecuh, Escambia40 min
Jun 28, 7:11 PM CDTSpecial Marine WarningMOB64 min
Jun 28, 7:15 PM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Mobile, Washington45 min
Jun 28, 7:24 PM CDTSpecial Weather StatementMOBClarke51 min
Jun 28, 7:34 PM CDTSevere Thunderstorm WarningMOBBaldwin41 min
Jun 28, 7:38 PM CDTSpecial Marine WarningMOB82 min
Jun 28, 7:50 PM CDTSevere Thunderstorm WarningMOBBaldwin25 min
Jun 28, 8:02 PM CDTSpecial Marine WarningMOB88 min
Jun 28, 8:07 PM CDTSpecial Weather StatementMOBBaldwin, Mobile, Washington38 min
Jun 28, 8:44 PM CDTSpecial Marine WarningMOB91 min
Jun 28, 8:49 PM CDTSpecial Marine WarningMOB26 min
Jun 28, 9:16 PM CDTSpecial Weather StatementMOBMobile44 min
Jun 28, 9:26 PM CDTSpecial Marine WarningMOB2 hr
Jun 28, 10:10 PM CDTSpecial Marine WarningMOB68 min
Jun 28, 11:15 PM CDTSpecial Marine WarningMOB60 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.