Alert archive / Mississippi / Tornado Warnings in 2018

Tornado Warning 27, NWS Mobile, AL

December 28, 2018Greene County, Wayne County, Mississippi; Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Dec 28, 2018, 2:47 AM CST for Greene County, Wayne County, Mississippi; Washington County, Alabama. It was in force for 28 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
Dec 28, 2018, 2:47 AM CST (08:47 UTC)
Expired
Dec 28, 2018, 3:15 AM CST
In force
28 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Washington County, AL, Greene County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 88 km from the middle of the area, began a volume at 08:49 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.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.8 hours before the alert went out and 181 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 2018-12-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1187 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, Slidell Radar S, LA at 00:00Z on 2018-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 365 square meters per square second.19395878Sfc1 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
1187 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
480 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
365 m²/s²
0-3 km storm-relative helicity
395 m²/s²
Significant tornado parameter
2.5
Supercell composite
14.9

Open this sounding in Storm Lab

The text

As transmitted.

856 
WFUS54 KMOB 280847
TORMOB
ALC129-MSC041-153-280915-
/O.NEW.KMOB.TO.W.0027.181228T0847Z-181228T0915Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
247 AM CST FRI DEC 28 2018

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Northwestern Washington County in southwestern Alabama...
  Southeastern Wayne County in southeastern Mississippi...
  Northeastern Greene County in southeastern Mississippi...

* Until 315 AM CST.
    
* At 247 AM CST, a severe thunderstorm capable of producing a tornado
  was located over State Line, or 14 miles west of Chatom, moving
  northeast at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Millry around 310 AM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3134 8850 3140 8858 3168 8833 3153 8821
TIME...MOT...LOC 0847Z 221DEG 45KT 3141 8850 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$
1 follow-up statement
508 
WWUS54 KMOB 280856
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
256 AM CST FRI DEC 28 2018

MSC041-153-280905-
/O.CAN.KMOB.TO.W.0027.000000T0000Z-181228T0915Z/
Wayne MS-Greene MS-
256 AM CST FRI DEC 28 2018

...THE TORNADO WARNING FOR SOUTHEASTERN WAYNE AND NORTHEASTERN GREENE
COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3164 8830 3153 8821 3142 8845 3151 8845
TIME...MOT...LOC 0855Z 221DEG 45KT 3149 8841 

$$

ALC129-280915-
/O.CON.KMOB.TO.W.0027.000000T0000Z-181228T0915Z/
Washington AL-
256 AM CST FRI DEC 28 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 AM CST FOR
NORTHWESTERN WASHINGTON COUNTY...
    
At 255 AM CST, a severe thunderstorm capable of producing a tornado
was located 5 miles northeast of State Line, or 9 miles west of
Chatom, moving northeast at 50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northwestern Washington County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3164 8830 3153 8821 3142 8845 3151 8845
TIME...MOT...LOC 0855Z 221DEG 45KT 3149 8841 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 27, 6:13 PM CSTFlash Flood WarningMOBPerry, Wayne6 hr
Dec 27, 6:32 PM CSTFlash Flood WarningMOBGreene, Wayne6 hr
Dec 27, 7:55 PM CSTFlash Flood Warning EmergencyMOBGreene, Perry, Wayne7 hr
Dec 27, 8:13 PM CSTSpecial Weather StatementMOBWayne47 min
Dec 27, 9:41 PM CSTRiver Flood WarningMOBGeorge, Greene, Jackson15 days
Dec 28, 12:14 AM CSTFlash Flood WarningMOBWayne3 hr
Dec 28, 1:30 AM CSTSpecial Weather StatementMOBPerry45 min
Dec 28, 1:43 AM CSTSpecial Weather StatementMOBWayne32 min
Dec 28, 2:26 AM CSTFlash Flood WarningMOBGreene, Perry, Stone3 hr
Dec 28, 3:14 AM CSTFlash Flood Warning EmergencyMOBGreene, Perry, Wayne3 hr
Dec 28, 4:17 AM CSTSpecial Weather StatementMOBGeorge43 min
Dec 28, 4:27 AM CSTRiver Flood WarningMOBPerry6 days
Dec 28, 4:45 AM CSTSevere Thunderstorm WarningMOBGeorge, Greene45 min
Dec 28, 4:52 AM CSTAreal Flood AdvisoryMOBGeorge, Greene3 hr
Dec 28, 6:11 AM CSTRiver Flood WarningMOBGreene, Wayne3 days
Dec 28, 6:13 AM CSTAreal Flood WarningMOBGreene, Perry, Wayne6 hr
Dec 28, 9:03 AM CSTAreal Flood WarningMOBGeorge, Greene, Perry, Wayne27 hr
Dec 28, 9:57 AM CSTRiver Flood WarningMOBPerry21 days
Dec 27, 6:57 PM CSTRiver Flood WarningMOBCovington, Escambia16 hr
Dec 27, 6:59 PM CSTSpecial Weather StatementMOBClarke46 min
Dec 27, 7:00 PM CSTRiver Flood WarningMOBBaldwin16 hr
Dec 27, 7:05 PM CSTAreal Flood AdvisoryMOBButler, Clarke, Conecuh, Covington, Crenshaw, Monroe and 1 more3 hr
Dec 27, 8:24 PM CSTRiver Flood WarningMOBDallas, Monroe, Wilcox13 days
Dec 27, 8:24 PM CSTRiver Flood WarningMOBClarke, Monroe, Wilcox15 days
Dec 27, 8:39 PM CSTFlash Flood WarningMOBChoctaw6 hr
Dec 27, 10:02 PM CSTAreal Flood AdvisoryMOBButler, Conecuh, Covington, Crenshaw, Monroe, Wilcox3 hr
Dec 28, 12:29 AM CSTFlash Flood WarningMOBChoctaw, Clarke, Washington3 hr
Dec 28, 2:13 AM CSTMarine Dense Fog AdvisoryMOB16 hr
Dec 28, 2:28 AM CSTSpecial Weather StatementMOBChoctaw47 min
Dec 28, 2:30 AM CSTSevere Thunderstorm WarningMOBChoctaw45 min
Dec 28, 3:08 AM CSTSpecial Weather StatementMOBClarke37 min
Dec 28, 3:13 AM CSTSevere Thunderstorm WarningMOBChoctaw, Clarke, Washington19 min
Dec 28, 3:28 AM CSTFlash Flood WarningMOBChoctaw, Clarke, Washington, Wilcox3 hr
Dec 28, 4:12 AM CSTFlash Flood Warning EmergencyMOBChoctaw3 hr
Dec 28, 5:20 AM CSTSpecial Weather StatementMOBMobile40 min
Dec 28, 5:51 AM CSTSpecial Marine WarningMOB84 min
Dec 28, 5:54 AM CSTSpecial Weather StatementMOBBaldwin, Mobile66 min
Dec 28, 6:04 AM CSTSpecial Weather StatementMOBMonroe41 min
Dec 28, 6:25 AM CSTAreal Flood WarningMOBChoctaw, Washington6 hr
Dec 28, 6:28 AM CSTFlash Flood WarningMOBClarke, Wilcox3 hr
Dec 28, 8:23 AM CSTSpecial Weather StatementMOBCovington52 min
Dec 28, 8:38 AM CSTSpecial Marine WarningMOB97 min
Dec 28, 8:42 AM CSTSpecial Marine WarningMOB68 min
Dec 28, 1:15 PM CSTAreal Flood AdvisoryMOBBaldwin3 hr

Nearby

Tornado Warnings in Mississippi, 2018Tornado Warnings in Alabama, 2018Every tornado warning in 2018Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.