Alert archive / Mississippi / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 83, NWS Mobile, AL

June 7, 2011Perry County, Wayne County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Jun 7, 2011, 2:29 PM CDT for Perry County, Wayne County, Mississippi. It was in force for 16 min. 1 report 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 7, 2011, 2:29 PM CDT (19:29 UTC)
Expired: Jun 7, 2011, 2:45 PM CDT
In force: 16 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Perry County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 108 km from the middle of the area, began a volume at 19:31 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

Time	Report	Where	Remark
Jun 7, 2:40 PM CDT	TSTM WND DMG	Richton, MS	OAK TREE REPORTED BLOWN DOWN ON BAY STREET THAT TOOK OUT A POWERLINE. DIME TO PENNY SIZE HAIL ALSO OBSERVED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.5 hours before the alert went out and 145 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1725 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1495 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

827 
WUUS54 KMOB 071929
SVRMOB
MSC111-153-071945-
/O.NEW.KMOB.SV.W.0083.110607T1929Z-110607T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
229 PM CDT TUE JUN 7 2011

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN PERRY COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF RICHTON...
  SOUTHWESTERN WAYNE COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 245 PM CDT

* AT 230 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES
  NORTHEAST OF RICHTON...OR 19 MILES NORTHEAST OF NEW AUGUSTA...AND
  MOVING NORTHWEST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HOLLIS CREEK AROUND 235 PM CDT...
  GOOD HOPE AROUND 240 PM CDT...
  RHODES AROUND 245 PM CDT...

&&

LAT...LON 3144 8912 3144 8894 3160 8894 3161 8893
      3149 8877 3143 8880 3143 8883 3135 8883
      3128 8886 3144 8913
TIME...MOT...LOC 1930Z 123DEG 7KT 3145 8888

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 2:31 PM CDT	Areal Flood Advisory	MOB	Perry	59 min
Jun 7, 2:50 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	25 min
Jun 7, 3:19 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	26 min
Jun 7, 3:57 PM CDT	Severe Thunderstorm Warning	MOB	Greene	33 min
Jun 7, 4:22 PM CDT	Areal Flood Advisory	MOB	Greene	113 min
Jun 7, 4:46 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Wayne	44 min
Jun 7, 5:18 PM CDT	Severe Thunderstorm Warning	MOB	Greene	42 min
Jun 7, 5:35 PM CDT	Flash Flood Warning	MOB	Greene, Wayne	4 hr
Jun 7, 6:08 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Wayne	52 min
Jun 7, 6:17 PM CDT	Severe Thunderstorm Warning	MOB	Greene	43 min
Jun 7, 6:38 PM CDT	Severe Thunderstorm Warning	MOB	George, Greene	37 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2011 Every severe thunderstorm warning in 2011

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.