Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 376, NWS Norman, OK

July 17, 1997Noble County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 17, 1997, 9:00 PM CDT for Noble County, Oklahoma. It was in force for 60 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
Jul 17, 1997, 9:00 PM CDT (02:00 UTC)
Expired
Jul 17, 1997, 10:00 PM CDT
In force
60 min
Issued by
NWS Norman, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Noble County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.0 hours before the alert went out and 131 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, Norman, OK at 00:00Z on 1997-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1936 joules per kilogram.LCLEL10008507005003002001001 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, Norman, OK at 00:00Z on 1997-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
1936 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1989 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

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 Jul 17, 8:52 PM CDT, 8 minutes earlier.

Area forecast discussion, Jul 17, 8:52 PM CDT, 8 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
850 PM CDT THU JUL 17 1997

TSTMS FIRED UP ONCE AGAIN IN ASSOCIATION WITH MCV OVER NORTHEAST OK. A
FEW OF THE STORMS HAVE DRIFTED INTO EASTERN NOBLE AND PAYNE COUNTIES AND
WILL LIKELY PROGRESS INTO LINCOLN COUNTY SHORTLY. QUICK LOOK AT ZNS
SHOWS EVERYTHING IS IN GOOD SHAPE FOR NOW SO WILL NOT MAKE ANY CHANGES.
WILL NEED TO UPDATE LATER TO REMOVE MIDNIGHT WORDING FROM NORTH CENTRAL
OK ZNS.

FCSTID = 17/MMT

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

In the hours before

Local storm report, Jul 17, 8:33 PM CDT, 27 minutes before
LOCAL STORM REPORT...CORRECTED HAIL SIZE...
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
835 PM CDT THU JUL 17 1997

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

0825 PM    3 ESE GLENCOE             OK   1.75 INCH HAIL
07/17/97   PAYNE

JS
Local storm report, Jul 17, 8:35 PM CDT, 25 minutes before
LOCAL STORM REPORT...CORRECTED HAIL SIZE...
NATIONAL WEATHER SERVICE NORMAN OKLAHOMA
835 PM CDT THU JUL 17 1997

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

0825 PM    3 ESE GLENCOE             OK   1.75 INCH HAIL
07/17/97   PAYNE

JS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 7:59 PM CDTSevere Thunderstorm WarningOUNNoble, Payne61 min
Jul 17, 9:00 PM CDTSevere Thunderstorm WarningOUNLincoln, Payne60 min
Jul 17, 10:05 PM CDTSevere Thunderstorm WarningOUNNoble, Payne55 min
Jul 17, 10:05 PM CDTSevere Thunderstorm WarningOUNLincoln55 min
Jul 18, 1:15 AM CDTSevere Thunderstorm WarningOUNGarfield45 min
Jul 18, 1:43 AM CDTFlash Flood WarningOUNLincoln3 hr
Jul 18, 1:58 AM CDTSevere Thunderstorm WarningOUNGrant32 min
Jul 18, 2:30 AM CDTSevere Thunderstorm WarningOUNGrant30 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1997Every 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; the sounding from the Mesonet's radiosonde archive.