Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 38, NWS Amarillo, TX

June 30, 1998Beaver County, Oklahoma

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 30, 1998, 9:46 PM CDT for Beaver County, Oklahoma. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 30, 1998, 9:46 PM CDT (02:46 UTC)
Expired
Jun 30, 1998, 10:50 PM CDT
In force
64 min
Issued by
NWS Amarillo, TX
Area
Whole counties

County Beaver County, OK

The radar

The Dodge City radar (KDDC), 121 km from the middle of the area, began a volume at 02:48 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

Dodge City, (KDDC), launched 00:00Z, 2.8 hours before the alert went out and 124 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 1998-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 45 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 00:00Z on 1998-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.193958Sfc1 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
45 J/kg
Mixed-layer CIN
-328 J/kg
Mixed-layer LCL
2385 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 30, 9:31 PM CDT, 15 minutes earlier.

Area forecast discussion, Jun 30, 9:31 PM CDT, 15 minutes before
TEXAS/OKLAHOMA PANHANDLES AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
931 PM CDT TUE JUN 30 1998

UPDATED NORTHERN ZONES TO REFLECT CONTINUED TREND IN STRONG TO
SEVERE TSTMS ALONG WITH HEAVY RAINFALL.  MANY LOCATIONS ACROSS NORTH
CENTRAL AND NORTHEAST TEXAS PANHANDLE HAVE EXPERIENCED RAINFALL
AMOUNTS ON THE ORDER OF 2 TO 3 INCHES...WITH LOCALIZED AREAS OF 4 TO
5 INCHES ACROSS PORTIONS OF LIPSCOMB COUNTY.  RAINFALL RATES
CONTINUE TO BE NEAR THE 2 INCH MARK.

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

JH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 7:34 PM CDTSevere Thunderstorm WarningAMAHemphill61 min
Jun 30, 8:23 PM CDTSevere Thunderstorm WarningAMALipscomb, Ochiltree62 min
Jun 30, 9:24 PM CDTSevere Thunderstorm WarningAMAHansford, Ochiltree61 min
Jun 30, 9:42 PM CDTFlash Flood WarningAMAOchiltree3 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1998Every severe thunderstorm warning in 1998

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.