Alert archive / Oklahoma / Tornado Warnings in 2010

Tornado Warning 21, NWS Amarillo, TX

May 18, 2010Texas County, Oklahoma

NWS Amarillo, TX issued this tornado warning at May 18, 2010, 7:44 PM CDT for Texas County, Oklahoma. It was in force for 31 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
May 18, 2010, 7:44 PM CDT (00:44 UTC)
Expired
May 18, 2010, 8:15 PM CDT
In force
31 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon

County Texas County, OK

The radar

The Dodge City radar (KDDC), 171 km from the middle of the area, began a volume at 00:46 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
May 18, 7:44 PM CDTTORNADO15 Nw Guymon, OK2 BRIEF TOUCHDOWNS.

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
May 18, 3:37 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 0.7 hours before the alert went out and 176 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, Dodge City, at 00:00Z on 2010-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 250 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, Dodge City, at 00:00Z on 2010-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 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
250 J/kg
Mixed-layer CIN
-196 J/kg
Mixed-layer LCL
1074 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
337 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

479 
WFUS54 KAMA 190044
TORAMA
OKC139-190115-
/O.NEW.KAMA.TO.W.0021.100519T0044Z-100519T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
744 PM CDT TUE MAY 18 2010

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL TEXAS COUNTY IN THE PANHANDLE OF OKLAHOMA.

* UNTIL 815 PM CDT

* AT 740 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
  DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE
  MOST DANGEROUS PART OF THIS STORM WAS LOCATED OVER TEXAS COUNTY...
  OR ABOUT 12 MILES SOUTHEAST OF ELKHART...MOVING NORTHEAST AT 30
  MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF
  NORTHERN TEXAS COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO MAY FORM AT ANY TIME...TAKE COVER NOW! ABANDON MOBILE HOMES
AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 3 3 5 1 1 2 1.

&&

LAT...LON 3700 10139 3677 10173 3690 10189 3700 10158
TIME...MOT...LOC 0044Z 247DEG 27KT 3689 10171

$$

CLK
2 follow-up statements
827 
WWUS54 KAMA 190100 RRA
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
800 PM CDT TUE MAY 18 2010

OKC139-190115-
/O.CON.KAMA.TO.W.0021.000000T0000Z-100519T0115Z/
TEXAS OK-
800 PM CDT TUE MAY 18 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR NORTH
CENTRAL TEXAS COUNTY...

AT 759 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO.  THIS 
TORNADO WAS LOCATED OVER NORTH CENTRAL TEXAS COUNTY...OR ABOUT 12 
MILES SOUTHEAST OF WILBURTON...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF THE INDICATED COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 3 3 5 1 1 2 1.

&&

LAT...LON 3679 10170 3692 10183 3700 10158 3700 10139
TIME...MOT...LOC 0059Z 240DEG 34KT 3696 10157

$$

CLK
028 
WWUS54 KAMA 190115 RRA
SVSAMA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
815 PM CDT TUE MAY 18 2010

OKC139-190124-
/O.EXP.KAMA.TO.W.0021.000000T0000Z-100519T0115Z/
TEXAS OK-
815 PM CDT TUE MAY 18 2010

...THE TORNADO WARNING FOR NORTH CENTRAL TEXAS COUNTY EXPIRES AT 815
PM CDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE
THUNDERSTORM HAS WEAKENED...AND NO LONGER POSES A TORNADIC THREAT TO 
RURAL AREAS IN NORTH CENTRAL TEXAS COUNTY. THUS THE TORNADO WARNING 
HAS BEEN ALLOWED TO EXPIRE.

TO REPORT SEVERE WEATHER...PLEASE CALL THE NATIONAL WEATHER SERVICE
AT 8 0 6 3 3 5 1 1 2 1.

LAT...LON 3679 10170 3692 10183 3700 10158 3700 10139
TIME...MOT...LOC 0114Z 249DEG 30KT 3696 10153

$$

CLK

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 18, 7:06 PM CDTSevere Thunderstorm WarningAMACimarron, Texas54 min
May 18, 8:03 PM CDTSevere Thunderstorm WarningAMACimarron57 min
May 18, 8:17 PM CDTSevere Thunderstorm WarningAMATexas41 min
May 18, 8:32 PM CDTSevere Thunderstorm WarningAMATexas88 min
May 18, 9:44 PM CDTTornado WarningAMACimarron, Texas61 min
May 18, 10:40 PM CDTTornado WarningAMACimarron, Texas65 min
May 19, 1:54 AM CDTSevere Thunderstorm WarningAMACimarron66 min
May 19, 2:31 AM CDTSevere Thunderstorm WarningAMABeaver59 min

Nearby

Tornado Warnings in Oklahoma, 2010Every tornado warning in 2010Tornadoes in 2010

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.