Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 195, NWS Tulsa, OK

May 6, 1998Crawford County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at May 6, 1998, 9:47 PM CDT for Crawford County, Arkansas. It was in force for 43 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: May 6, 1998, 9:47 PM CDT (02:47 UTC)
Expired: May 6, 1998, 10:30 PM CDT
In force: 43 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Crawford County, AR

The radar

The Western Arkansas radar (KSRX), 35 km from the middle of the area, began a volume at 02:46 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 6, 4:00 PM CDT	Tornado Watch	SPC	6 hr
May 6, 8:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.8 hours before the alert went out and 151 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: 1358 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1166 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.9

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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 6, 9:45 PM CDT, 2 minutes earlier.

Area forecast discussion, May 6, 9:45 PM CDT, 2 minutes before

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In the hours before

Local storm report, May 6, 3:59 PM CDT, 5 hours 48 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
359 PM CDT WED MAY 06 1998

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

0321 AM    HEAVENER                  OK   .88 INCH HAIL
05/06/98   LE FLORE

0400 AM    POTEAU                    OK   FLOODING
05/06/98   LE FLORE                       HIGH WATER TEMPORARILY
                                          COVERED DEWEY AVENUE
                                          TOWARDS HOSPITAL

Local storm report, May 6, 3:59 PM CDT, 5 hours 48 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
359 PM CDT WED MAY 06 1998

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

0321 AM    HEAVENER                  OK   .88 INCH HAIL
05/06/98   LE FLORE

0400 AM    POTEAU                    OK   FLOODING
05/06/98   LE FLORE                       HIGH WATER TEMPORARILY
                                          COVERED DEWEY AVENUE
                                          TOWARDS HOSPITAL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 7:21 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	54 min
May 6, 7:25 PM CDT	Severe Thunderstorm Warning	TSA	Haskell	80 min
May 6, 7:32 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	58 min
May 6, 7:46 PM CDT	Tornado Warning	TSA	Adair	29 min
May 6, 8:05 PM CDT	Tornado Warning	TSA	Adair	25 min
May 6, 8:09 PM CDT	Tornado Warning	TSA	Haskell	36 min
May 6, 8:12 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee	33 min
May 6, 8:15 PM CDT	Tornado Warning	TSA	Sequoyah	45 min
May 6, 8:18 PM CDT	Tornado Warning	TSA	LeFlore	42 min
May 6, 8:30 PM CDT	Tornado Warning	TSA	Pittsburg	45 min
May 6, 8:34 PM CDT	Tornado Warning	TSA	Muskogee	26 min
May 6, 8:56 PM CDT	Tornado Warning	TSA	LeFlore	34 min
May 6, 7:01 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Washington	59 min
May 6, 7:34 PM CDT	Tornado Warning	TSA	Crawford	56 min
May 6, 7:43 PM CDT	Tornado Warning	TSA	Franklin	62 min
May 6, 7:52 PM CDT	Severe Thunderstorm Warning	TSA	Madison	38 min
May 6, 8:01 PM CDT	Tornado Warning	TSA	Washington	44 min
May 6, 8:25 PM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison	50 min
May 6, 8:40 PM CDT	Severe Thunderstorm Warning	TSA	Sebastian	65 min
May 6, 8:45 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin	45 min
May 6, 8:52 PM CDT	Tornado Warning	TSA	Sebastian	38 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1998 Every 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.