Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 175, NWS Norman, OK

May 30, 1997Archer County, Clay County, Texas

NWS Norman, OK issued this severe thunderstorm warning at May 30, 1997, 4:59 AM CDT for Archer County, Clay County, Texas. It was in force for 31 min. 2 reports 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: May 30, 1997, 4:59 AM CDT (09:59 UTC)
Expired: May 30, 1997, 5:30 AM CDT
In force: 31 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Archer County, TX, Clay County, TX

What was reported inside it

Time	Report	Where	Remark
May 30, 5:00 AM CDT	Hail 0.75	Joy, TX
May 30, 5:39 AM CDT	Hail 1	Bellevue, TX

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 nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 10.0 hours before the alert went out and 145 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: 47 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 1815 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 126 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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 30, 4:07 AM CDT, 52 minutes earlier.

Area forecast discussion, May 30, 4:07 AM CDT, 52 minutes before

FPUS3 KOKC 300905
AFDOKC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
407 AM CDT FRI MAY 30 1997

UPR FLOW TO RMN NWLY TO NLY OVR AREA THRU AT LEAST SAT AS UPR LOW DVLPS
OVR ERN US. SHTWVS DRIVING INTO NWRN US WL NUDGE THE WRN RDG AXIS EWD
INTO NRN/CNTRL HI PLAINS BY SUN, BUT IN MEANTIME MAY HV TO DEAL WITH 1
OR 2 MORE IMPLSS IN N-NW FLOW DROPPING TWD AREA.

CRNT ACTVTY EXPCD TO WKN AND MOVE OFF TO SE AS CDFNT PUSHES INTO EXTRM
SERN ZNS BY 00Z. LOCALIZED HVY RAIN/FLOODING IN SPS AREA ATTM EXPCD TO
RMN LOCALIZED WITH MAIN FOCUS SHIFTING EWD/SEWD ALG OUTFLOW WELL AHD OF
FNT AND AHD OF DVLPG MCV OVR SRN OK/NRN TX. BEST LIFT MOVG INTO AR AND
SERN TX BY EARLY EVE BASED ON ETA PROGS. WL REMOVE POPS FM NWRN ZNS AND
KEEP SOME LOW POPS IN CNTRL/SWRN ZNS FOR THIS MRNG, WHILE GRDLY ENDING
PCPN IN SE DURG MRNG. REDVLPMT ALG FNT THIS AFTN EXPCD TO BE MNLY S AND
E OF AREA WITH BEST CHCS IN SERN ZNS. FOR TNGT WL KEEP A LOW POP IN
EXTRM SERN ZNS THIS EVE. RH PROGS SUGGEST ENUF LINGERING MSTR FOR
CNSDRBL CLD CVR TDA ALTHO SUBSDNC BHD MCV MAY HELP DVLP SOME BREAKS.
MAIN CLRG EXPCD TNGT.

DRYING DEPICTED ON SAT BUT ETA HINTS AT A POTLY TROUBLESOME IMPLS
DROPPING INTO NWRN KS BY LATE SAT. INCRG RH AND DESTBLZTN AHD OF THIS
FEATURE, ALG WITH DVLPMT OF LL CONVGC OVR CNTRL/SRN HI PLAINS, SUGGESTS
POTL FOR HI PLAINS TSTM DVLPMT LATE SAT WITH STRMS ROLLING SWD SAT NGT.
ATTM WL KEEP POPS SAT AND SAT NGT OUT OF FCST IN WRN ZNS AS BEST CHC
APRS TO BE FRTHR W OVR PNHDL AREA.

NO CHGS TO EXTDD.

FATAL ICWF FAILURE THIS MRNG FORCES A MANUAL FCST PREPARATION. EXPC
PSBL DELAYS IN SOME PRODUCTS FM MRNG PKG.

FCSTID = 24
OKC   74  56  78  58 /  30   5   0   5
HBR   75  56  82  58 /  20   5   5  10
SPS   77  58  82  58 /  50   5   0   5
GAG   74  54  80  54 /  10   5  10  10
PNC   76  55  80  59 /  20   5   0   5
DUA   73  58  79  59 /  70  20   0   0

.OKC...
OK...NONE.
TX...NONE.

In the hours before

Special weather statement, May 29, 10:59 PM CDT, 6 hours before

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Local storm report, May 29, 11:42 PM CDT, 5 hours 17 minutes before

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Local storm report, May 29, 11:44 PM CDT, 5 hours 15 minutes before

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Local storm report, May 30, 2:25 AM CDT, 2 hours 34 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0225 AM CDT FRI MAY 30 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0155 AM    6 NE FREDRICK             OK   1.00 INCH HAIL
05/29/97   TILLMAN

J

Local storm report, May 30, 2:29 AM CDT, 2 hours 30 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
0225 AM CDT FRI MAY 30 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0155 AM    6 NEd FREDRICK             OK   1.00 INCH HAIL
05/29/97   TILLMAN

J

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 7:10 PM CDT	Severe Thunderstorm Warning	OUN	Harper	65 min
May 29, 7:39 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	36 min
May 29, 8:00 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	45 min
May 29, 8:05 PM CDT	Tornado Warning	OUN	Ellis, Woodward	25 min
May 29, 8:27 PM CDT	Tornado Warning	OUN	Woodward	33 min
May 29, 8:31 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	44 min
May 29, 8:45 PM CDT	Tornado Warning	OUN	Dewey, Ellis	45 min
May 29, 8:55 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	50 min
May 29, 9:28 PM CDT	Tornado Warning	OUN	Custer, Dewey	47 min
May 29, 9:31 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	29 min
May 29, 9:45 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	30 min
May 29, 10:15 PM CDT	Severe Thunderstorm Warning	OUN	Custer	45 min
May 30, 1:28 AM CDT	Severe Thunderstorm Warning	OUN	Tillman	47 min
May 30, 2:16 AM CDT	Severe Thunderstorm Warning	OUN	Tillman	29 min
May 30, 2:44 AM CDT	Severe Thunderstorm Warning	OUN	Tillman	46 min
May 30, 6:50 AM CDT	Flash Flood Warning	OUN	Carter, Love, Marshall	3 hr
May 30, 12:20 PM CDT	Flash Flood Warning	OUN	Carter, Jefferson, Stephens	2 hr
May 30, 3:28 AM CDT	Severe Thunderstorm Warning	OUN	Clay, Wichita	47 min
May 30, 3:49 AM CDT	Flash Flood Warning	OUN	Clay, Wichita	3 hr
May 30, 4:21 AM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay	39 min
May 30, 5:30 AM CDT	Severe Thunderstorm Warning	OUN	Clay	30 min

Nearby

Severe Thunderstorm Warnings in Texas, 1997 Every severe thunderstorm warning in 1997

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.