Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 21, NWS Shreveport, LA

March 8, 2006McCurtain County, Oklahoma

NWS Shreveport, LA issued this severe thunderstorm warning at Mar 8, 2006, 10:55 PM CST for McCurtain County, Oklahoma. 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: Mar 8, 2006, 10:55 PM CST (04:55 UTC)
Expired: Mar 8, 2006, 11:45 PM CST
In force: 50 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

County McCurtain County, OK

The radar

The Western Arkansas radar (KSRX), 104 km from the middle of the area, began a volume at 04:57 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

Shreveport, LA (KSHV), launched 00:00Z, 4.9 hours before the alert went out and 234 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: 123 J/kg
Mixed-layer CIN: -260 J/kg
Mixed-layer LCL: 1573 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 183 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 KSHV 090456
SVRSHV
OKC089-090545-
/O.NEW.KSHV.SV.W.0021.060309T0455Z-060309T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1055 PM CST WED MAR 8 2006

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCCURTAIN COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 1145 PM CST

* AT 1050 PM CST...SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS   
LOCATED NEAR BETHEL...AND WAS MOVING EAST NORTHEAST AT 50 MPH.

* THIS STORM WILL REACH SMITHVILLE BY AROUND 1120 PM. 

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. 
WHILE NOT IMMEDIATELY LIKELY...A TORNADO COULD POSSIBLY DEVELOP. IF 
A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN 
A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE
THUNDERSTORM WARNING FOR...
  MCCURTAIN COUNTY IN SOUTHEAST OKLAHOMA
UNTIL 1145 PM CST.

LAT...LON 3447 9492 3430 9486 3431 9448 3450 9454

$$

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 9, 1:28 AM CST	Severe Thunderstorm Warning	SHV	McCurtain	62 min
Mar 9, 2:52 AM CST	High Wind Warning	SHV	McCurtain	2 hr
Mar 9, 2:52 AM CST	Lake Wind Advisory	SHV	McCurtain	15 hr
Mar 9, 5:56 AM CST	Severe Thunderstorm Warning	SHV	McCurtain	64 min
Mar 9, 7:08 AM CST	Severe Thunderstorm Warning	SHV	McCurtain	67 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2006 Every severe thunderstorm warning in 2006

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.