Alert archive / Mississippi / Tornado Warnings in 2020

Tornado Warning 27, NWS Mobile, AL

April 19, 2020Perry County, Mississippi

NWS Mobile, AL issued this tornado warning at Apr 19, 2020, 8:05 PM CDT for Perry County, Mississippi. It was in force for 37 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
Apr 19, 2020, 8:05 PM CDT (01:05 UTC)
Expired
Apr 19, 2020, 8:42 PM CDT
In force
37 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Perry County, MS

The radar

The Mobile radar (KMOB), 100 km from the middle of the area, began a volume at 01:09 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
Apr 19, 8:25 PM CDTTSTM WND DMG1 E New Augusta, MSTREES DOWN AROUND NEW AUGUSTA NEAR HIGHWAY 98.
Apr 19, 8:25 PM CDTTSTM WND DMG3 Sw Richton, MSMULTIPLE TREES DOWN ACROSS THE COUNTY.
Apr 19, 8:25 PM CDTTSTM WND DMGNew Augusta, MSTREES DOWN EVERYWHERE ACROSS THE COUNTY. ONE HOUSE SUSTAINED MODERATE DAMAGE AND ANOTHER HOUSE SUSTAINED MINOR DAMAGE.
Apr 19, 8:25 PM CDTTSTM WND DMGRichton, MSREPORT OF A GARAGE/CARPORT THAT COLLAPSED ON A VEHICLE. PICTURES 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
Apr 19, 3:56 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.1 hours before the alert went out and 131 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 2020-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2097 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 2020-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 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
2097 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
819 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
2.5
Supercell composite
9.5

Open this sounding in Storm Lab

The text

As transmitted.

233 
WFUS54 KMOB 200105
TORMOB
MSC111-200200-
/O.NEW.KMOB.TO.W.0027.200420T0105Z-200420T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mobile AL
805 PM CDT Sun Apr 19 2020

The National Weather Service in Mobile has issued a

* Tornado Warning for...
  Northern Perry County in southeastern Mississippi...

* Until 900 PM CDT.
    
* At 804 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles northwest of Mclaurin, or 5 miles south of
  Hattiesburg, moving east at 45 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...
  New Augusta around 820 PM CDT.
  Richton around 835 PM CDT.

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 3132 8914 3138 8884 3119 8884 3116 8914
TIME...MOT...LOC 0104Z 254DEG 38KT 3123 8927 

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

$$
2 follow-up statements
300 
WWUS54 KMOB 200134
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
834 PM CDT Sun Apr 19 2020

MSC111-200200-
/O.CON.KMOB.TO.W.0027.000000T0000Z-200420T0200Z/
Perry MS-
834 PM CDT Sun Apr 19 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHEASTERN PERRY COUNTY...
    
At 834 PM CDT, a severe thunderstorm capable of producing a tornado
was located 6 miles southeast of Richton, moving east 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
northeastern Perry 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 3138 8884 3119 8884 3118 8896 3135 8900
TIME...MOT...LOC 0134Z 260DEG 42KT 3129 8886 

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

$$
437 
WWUS54 KMOB 200142
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
842 PM CDT Sun Apr 19 2020

MSC111-200152-
/O.CAN.KMOB.TO.W.0027.000000T0000Z-200420T0200Z/
Perry MS-
842 PM CDT Sun Apr 19 2020

...THE TORNADO WARNING FOR NORTHEASTERN PERRY COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CDT for southeastern
Mississippi.

Remember, a Severe Thunderstorm Warning still remains in effect 
until 845 PM CDT. 

LAT...LON 3138 8884 3119 8884 3118 8896 3135 8900
TIME...MOT...LOC 0141Z 254DEG 38KT 3131 8876 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:58 PM CDTSevere Thunderstorm WarningMOBPerry47 min
Apr 19, 8:10 PM CDTFlash Flood WarningMOBGreene, Perry, Wayne3 hr
Apr 19, 8:22 PM CDTTornado WarningMOBGreene53 min
Apr 19, 8:45 PM CDTSevere Thunderstorm WarningMOBPerry30 min
Apr 19, 9:03 PM CDTSevere Thunderstorm WarningMOBGreene36 min
Apr 19, 10:38 PM CDTSevere Thunderstorm WarningMOBGeorge52 min

Nearby

Tornado Warnings in Mississippi, 2020Every tornado warning in 2020Tornadoes 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.