Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 195, NWS Amarillo, TX

October 8, 2001Roberts County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Oct 8, 2001, 3:56 PM CDT for Roberts County, Texas. It was in force for 34 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
Oct 8, 2001, 3:56 PM CDT (20:56 UTC)
Expired
Oct 8, 2001, 4:30 PM CDT
In force
34 min
Issued by
NWS Amarillo, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Roberts County, TX

The radar

The Amarillo radar (KAMA), 105 km from the middle of the area, began a volume at 20:56 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 12:00Z, 8.9 hours before the alert went out and 230 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 12:00Z on 2001-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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 12:00Z on 2001-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 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
4 J/kg
Mixed-layer CIN
-661 J/kg
Mixed-layer LCL
1701 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
203 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 Oct 8, 2:26 PM CDT, 1 hour 30 minutes earlier.

Area forecast discussion, Oct 8, 2:26 PM CDT, 1 hour 30 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AMARILLO TX
226 PM CDT MON OCT 8 2001

ELEVATED SHOWERS AND T-STORMS OUT THE WINDOW SHOWS THE MID LEVEL
LIFT AND MOISTURE VERY WELL.  SURFACE MOISTURE IS RETURNING
ACROSS THE EASTERN PANHANDLES AND WESTERN OKLAHOMA TODAY. SURFACE
TROUGH SHOULD REMAIN ACROSS SOUTHEAST COLORADO INTO EASTERN NEW
MEXICO TONIGHT. THE TROUGH WILL THEN PUSH EAST ACROSS THE
PANHANDLES ON TUESDAY AFTERNOON AS UPPER WAVE FROM ARIZONA MOVES
NORTHEAST ACROSS THE CWA.  OVER ALL...BEST CHANCE POPS LOOK GOOD FOR
THE EAST THROUGH TUESDAY NIGHT AS THE BEST MOISTURE AND BEST
DIVERGENCE ALOFT IS FOUND THERE.

COLD FRONT IS EXPECTED TO MOVE THROUGH THE PANHANDLES TUESDAY NIGHT
INTO EARLY WEDNESDAY. WEDNESDAY SHOULD BE A MUCH COOLER DAY AND WE
WILL PROBABLY MENTION A BIT CLOUDIER DAY THAN THE CURRENT
FORECAST. WE WILL LEAVE THE SLIGHT CHANCE POPS IN AS DYNAMICS ALOFT
MAY HELP WITH UPSLOPE ON THE SURFACE TO SQUEEZE OUT SOME SHOWERS.

WILL NOT CHANGE MUCH TO THE FORECAST BEYOND WEDNESDAY AS IT HAS THE
SITUATION COVERED WELL.  THE MEDIUM RANGE MODELS ALSO DO NOT AGREE
TOO WELL ON FRIDAY AND SATURDAY...SO WILL CONTINUE WITH PERSISTENCE.

A FEW NUMBERS TO PONDER:

AMA 55/82 49/61 39 202
DHT 52/79 47/58 37 202
BVR 59/84 52/62 39 423

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

GOEHRING

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 4:33 PM CDTSevere Thunderstorm WarningAMABeaver27 min

Nearby

Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001

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.