Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 377, NWS Norman, OK

July 17, 1997Noble County, Payne County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 17, 1997, 10:05 PM CDT for Noble County, Payne County, Oklahoma. It was in force for 55 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, 10:05 PM CDT (03:05 UTC)
Expired: Jul 17, 1997, 11:00 PM CDT
In force: 55 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Noble County, OK, Payne County, OK

The radar

The Norman radar (KTLX), 101 km from the middle of the area, began a volume at 03:06 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

Norman, OK (KOUN), launched 00:00Z, 3.1 hours before the alert went out and 116 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: 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, 1 hour 13 minutes earlier.

Area forecast discussion, Jul 17, 8:52 PM CDT, 1 hour 13 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, 1 hour 32 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, 1 hour 30 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.

Issued	Product	Office	Counties	Lasted
Jul 17, 7:59 PM CDT	Severe Thunderstorm Warning	OUN	Noble, Payne	61 min
Jul 17, 9:00 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Payne	60 min
Jul 17, 9:00 PM CDT	Severe Thunderstorm Warning	OUN	Noble	60 min
Jul 17, 10:05 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	55 min
Jul 18, 1:15 AM CDT	Severe Thunderstorm Warning	OUN	Garfield	45 min
Jul 18, 1:43 AM CDT	Flash Flood Warning	OUN	Lincoln	3 hr
Jul 18, 1:58 AM CDT	Severe Thunderstorm Warning	OUN	Grant	32 min
Jul 18, 2:30 AM CDT	Severe Thunderstorm Warning	OUN	Grant	30 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.