Alert archive / Texas / Tornado Warnings in 1999

Tornado Warning 19, NWS Amarillo, TX

June 25, 1999Moore County, Texas

NWS Amarillo, TX issued this tornado warning at Jun 25, 1999, 8:32 PM CDT for Moore County, Texas. It was in force for 28 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 25, 1999, 8:32 PM CDT (01:32 UTC)
Expired: Jun 25, 1999, 9:00 PM CDT
In force: 28 min
Issued by: NWS Amarillo, TX
Area: Whole counties

County Moore County, TX

The radar

The Amarillo radar (KAMA), 69 km from the middle of the area, began a volume at 01:32 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 25, 8:38 PM CDT	Thunderstorm Wind 61	Dumas, TX	Report of limbs and a few trees down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 25, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.5 hours before the alert went out and 70 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: 1007 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1889 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAMA 260135 RRA
TORAMA
TXC341-260200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
832 PM CDT FRI JUN 25 1999

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* TORNADO WARNING FOR...
  MOORE COUNTY IN THE TEXAS PANHANDLE

* UNTIL 900 PM CDT

* AT 832 PM CDT...A SPOTTER REPORTED TWO TORNADOES IN MOORE COUNTY 
  MOVING EAST AT 20 MPH.

IF YOU ARE OUTSIDE...DO NOT WATCH FOR THE TORNADO. SEEK SHELTER
IMMEDIATELY IN A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK
REFUGE IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR
HANDS.

THIS IS A DANGEROUS STORM SITUATION. DO NOT RUN OUTSIDE TO FIND THE
TORNADO...SEEK SHELTER IMMEDIATELY. MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR. USE BLANKETS...PILLOWS OR CUSHIONS TO COVER YOUR BODY.


&

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Amarillo, TX wrote its last area forecast discussion before this tornado warning went out at Jun 25, 3:17 PM CDT, 5 hours 15 minutes earlier.

Area forecast discussion, Jun 25, 3:17 PM CDT, 5 hours 15 minutes before

TEXAS/OKLAHOMA PANHANDLES AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
315 PM FRI JUN 25 1999

RICH DEEP MSTR RMNS IN PLACE. SFC DWPTS MAINLY IN 60S...H8 DWPTS ARND
12 DEG C...AND H7 DWPTS OF 4 TO 6 DEG C NOTED AT 12Z. SFC MSTR FLUX
CNVGNC HAS BEEN CONCENTRATED DURG MRNG OVR ERN ZNS VCNTY OUTFLOW
BNDRYS...AND HAS BEEN INCRG DURG AFTN OVR NWRN ZNS IN PROXIMITY OF
SFC LOW.  CAPE VALUES INCRG THESE AREAS AS WELL.  CURVATURE IN 12Z H7
ANALYSIS OVR ERN ZNS WAS LIKELY INSTRUMENTAL IN LINGERING MRNG PCPN
AND HAS MOVD EWD.  SHTWV SEEN ON WATER VAPOR IMAGERY FITS WELL WITH
ETA DEPICTION OF VOT MAX RIDING H5 RDG APCHG NWRN ZNS ATTM.  WITH
THIS IN MIND...WL INTRODUCE CHC OR SCT POPS OVR WRN ZNS FOR TNGT...
KEEP CHC IN ERN...AND SLGT CHC OVR CNTRL.  WL ALSO INTRODUCE SLGT CHC
POP IN WRN ZNS FOR SAT EVE AS SFC TROF SHARPENS OVR THIS AREA.  H5
HGTS INCR ON SUN...YET STRENGTH OF FLOW DOES NOT DMSH...SO WL NOT PUT
END TO SHOWERY FCST JUST YET.  FROPA LOOKS TO BE SUN NGT AND MON
MRNG. SLGTLY COOLER CONDS EXPCD FOR MON...WITH RECOVERY INTO LOWER TO
MID 90S ON TUE AND WED.  03

.AMA...
TX...NONE.
OK...NONE.

COCKRELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:26 PM CDT	Severe Thunderstorm Warning	AMA	Hartley	49 min
Jun 25, 7:40 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith	50 min
Jun 25, 8:24 PM CDT	Severe Thunderstorm Warning	AMA	Moore, Potter	51 min

Nearby

Tornado Warnings in Texas, 1999 Every tornado warning in 1999 Tornadoes in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.