Alert archive / Mississippi / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 252, NWS Jackson, MS

June 18, 2007Clay County, Oktibbeha County, Webster County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jun 18, 2007, 5:55 PM CDT for Clay County, Oktibbeha County, Webster County, Mississippi. It was in force for 50 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: Jun 18, 2007, 5:55 PM CDT (22:55 UTC)
Expired: Jun 18, 2007, 6:45 PM CDT
In force: 50 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Clay County, MS, Oktibbeha County, MS, Webster County, MS

The radar

The Columbus AFB radar (KGWX), 70 km from the middle of the area, began a volume at 22:58 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

Little Rock, AR (KLZK), launched 12:00Z, 10.9 hours before the alert went out and 159 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: 543 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 878 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -42 m²/s²
0-3 km storm-relative helicity: -37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KJAN 182255
SVRJAN
MSC025-105-155-190000-
/O.NEW.KJAN.SV.W.0252.070618T2255Z-070619T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
555 PM CDT MON JUN 18 2007

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEBSTER COUNTY IN NORTH CENTRAL MISSISSIPPI...
  CLAY COUNTY IN NORTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF MONTPELIER...
  OKTIBBEHA COUNTY IN NORTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF STARKVILLE...

* UNTIL 700 PM CDT

* AT 555 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  MABEN...OR ABOUT 14 MILES WEST OF STARKVILLE...AND MOVING NORTHEAST
  AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CUMBERLAND AND 9 MILES SOUTHEAST OF CLARKSON BY 600 PM CDT...
  PHEBA BY 605 PM CDT...
  MONTPELIER AND 6 MILES NORTHWEST OF GRIFFITH BY 625 PM CDT...
  7 MILES NORTHWEST OF PALA ALTO BY 635 PM CDT...

HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS
INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS
DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES.

LAT...LON 3358 8931 3343 8881 3368 8869 3380 8875
      3372 8920

$$

CME

3 follow-up statements

000 
WWUS54 KJAN 182310
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
610 PM CDT MON JUN 18 2007

MSC105-182320-
/O.CAN.KJAN.SV.W.0252.000000T0000Z-070619T0000Z/
OKTIBBEHA MS-
610 PM CDT MON JUN 18 2007

...THE SEVERE THUNDERSTORM WARNING FOR OKTIBBEHA COUNTY IS
CANCELLED...

LAT...LON 3362 8927 3356 8882 3368 8869 3380 8875
      3372 8920

$$

MSC025-155-190000-
/O.CON.KJAN.SV.W.0252.000000T0000Z-070619T0000Z/
CLAY MS-WEBSTER MS-
610 PM CDT MON JUN 18 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT 
FOR EASTERN WEBSTER AND CLAY COUNTIES...

AT 610 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR
CUMBERLAND...OR ABOUT 7 MILES SOUTH OF MONTPELIER...MOVING NORTHEAST
AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MONTPELIER BY 620 PM CDT...
  6 MILES NORTHWEST OF GRIFFITH BY 625 PM CDT...
  7 MILES NORTHWEST OF PALA ALTO BY 635 PM CDT...

IN ADDITION TO HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND 
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY 
LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU 
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

LAT...LON 3362 8927 3356 8882 3368 8869 3380 8875
      3372 8920

$$

CME

000 
WWUS54 KJAN 182328
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
628 PM CDT MON JUN 18 2007

MSC155-182338-
/O.CAN.KJAN.SV.W.0252.000000T0000Z-070619T0000Z/
WEBSTER MS-
628 PM CDT MON JUN 18 2007

...THE SEVERE THUNDERSTORM WARNING FOR WEBSTER COUNTY IS CANCELLED...

LAT...LON 3370 8903 3361 8878 3368 8869 3380 8875
      3381 8892

$$

MSC025-190000-
/O.CON.KJAN.SV.W.0252.000000T0000Z-070619T0000Z/
CLAY MS-
628 PM CDT MON JUN 18 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR CLAY COUNTY...

AT 628 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR MONTPELIER...MOVING
NORTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL CLAY COUNTY AT 640 PM CDT

HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS
INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS
DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES.

LAT...LON 3370 8903 3361 8878 3368 8869 3380 8875
      3381 8892

$$

CME

000 
WWUS54 KJAN 182345
SVSJAN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
645 PM CDT MON JUN 18 2007

MSC025-182355-
/O.CAN.KJAN.SV.W.0252.000000T0000Z-070619T0000Z/
CLAY MS-
645 PM CDT MON JUN 18 2007

...THE SEVERE THUNDERSTORM WARNING FOR CLAY COUNTY IS CANCELLED...

THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT
OF THE COUNTY.

LAT...LON 3370 8903 3361 8878 3368 8869 3380 8875
      3381 8892

$$

CME

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 2:24 PM CDT	Severe Thunderstorm Warning	JAN	Jones	36 min
Jun 18, 2:43 PM CDT	Severe Thunderstorm Warning	JAN	Lawrence	17 min
Jun 18, 2:47 PM CDT	Severe Thunderstorm Warning	JAN	Jasper, Smith	58 min
Jun 18, 2:52 PM CDT	Severe Thunderstorm Warning	JAN	Simpson	39 min
Jun 18, 3:27 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	36 min
Jun 18, 3:33 PM CDT	Severe Thunderstorm Warning	JAN	Newton	42 min
Jun 18, 4:02 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	43 min
Jun 18, 4:18 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	43 min
Jun 18, 4:33 PM CDT	Severe Thunderstorm Warning	JAN	Grenada	13 min
Jun 18, 5:13 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes	23 min
Jun 18, 5:20 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Montgomery	55 min
Jun 18, 6:00 PM CDT	Severe Thunderstorm Warning	JAN	Leflore	47 min
Jun 18, 6:03 PM CDT	Severe Thunderstorm Warning	JAN	Grenada	43 min
Jun 18, 6:08 PM CDT	Severe Thunderstorm Warning	JAN	Webster	21 min
Jun 18, 6:26 PM CDT	Severe Thunderstorm Warning	JAN	Sunflower	49 min
Jun 18, 6:29 PM CDT	Severe Thunderstorm Warning	JAN	Lowndes	61 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2007 Every severe thunderstorm warning in 2007

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.