Alert archive / Arkansas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 221, NWS Tulsa, OK

July 12, 2002Madison County, Washington County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 12, 2002, 3:03 PM CDT for Madison County, Washington County, Arkansas. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 12, 2002, 3:03 PM CDT (20:03 UTC)
Expired
Jul 12, 2002, 4:00 PM CDT
In force
57 min
Issued by
NWS Tulsa, OK
Area
Counties, with a storm outline in the text

Counties Madison County, AR, Washington County, AR

The radar

The Western Arkansas radar (KSRX), 93 km from the middle of the area, began a volume at 20:05 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

IssuedProductOfficeLasted
Jul 12, 12:00 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.1 hours before the alert went out and 97 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, Springfield, MO at 12:00Z on 2002-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1432 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2002-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
1432 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
613 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

943 
WUUS54 KTSA 122003
SVRTUL
ARC087-143-122100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
302 PM CDT FRI JUL 12 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MADISON COUNTY IN NORTHWEST ARKANSAS
  EASTERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 400 PM CDT

* AT 302 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 
  MILES NORTHEAST OF BRENTWOOD...MOVING EAST AT 25 MPH. A SECOND
  SEVERE THUNDERSTORM WAS 5 MILES EAST OF SPRINGDALE...ALSO MOVING 
  EAST AT 25 MPH. 

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...HUNTSVILLE...
  ST PAUL...PETTIGREW...AURORA...WESLEY...KINGSTON...HINDSVILLE...
  BOSTON...WITTER...JAPTON...MARBLE...WINSLOW...ELKINS AND BRENTWOOD.

WIND GUSTS TO 65 MPH CAN BE EXPECTED IN THE WARNED AREA. STAY
INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

LAT...LON 3623 9408 3578 9419 3577 9356 3612 9342

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 Jul 12, 2:55 PM CDT, 8 minutes earlier.

Area forecast discussion, Jul 12, 2:55 PM CDT, 8 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OKLAHOMA
255 PM CDT FRI JUL 12 2002

BOUNDARY CONTINUES TO PUSH SOUTHEAST ACROSS THE FA THIS AFTERNOON.
SHOWERS AND THUNDERSTORMS...SOME SEVERE HAVE DEVELOPED ALONG THIS
FRONT. EXPECT STORMS TO CONTINUE PUSH ACROSS SE OK AND NW AR THIS
AFTERNOON...BUT MAY WEAKEN AS OUTFLOW PUSHES FURTHER AWAY FROM THE
LEADING EDGE OF ACTIVITY. WEAK UPPER LOW EXPECTED TO MEANDER SOUTH
FROM IA/MO AND TOWARDS THE FA...THEN LINGER IN THE VICINITY FOR THE
NEXT SEVERAL DAYS. CHANCES FOR STORMS WILL BE CONFINED MAINLY TO THE
AFTERNOON AND EVENING...BUT WILL MAINTAIN LOW NIGHTTIME POPS. WILL
GO AHEAD AND ADD LOW POPS FOR TUESDAY WITH MODELS IN PRETTY GOOD
AGREEMENT THROUGH EARLY PART OF NEXT WEEK. HOWEVER...WITH DIFFERING
SOLUTIONS LATER ON WILL OPT TO KEEP WED-FRI DRY WITH SLIGHT
INCREASES IN MAX TEMPS.

TUL  68  85  68  87 /  20  40  20  40
FSM  70  85  69  89 /  30  50  30  50
MLC  68  87  69  88 /  20  40  20  40
BVO  66  85  66  87 /  20  40  20  40
FYV  66  81  64  84 /  30  50  30  50
BYV  65  80  64  82 /  30  50  30  50
MIO  66  83  66  85 /  30  40  20  40
MKO  69  86  68  88 /  20  40  20  40
F10  69  86  69  88 /  20  40  20  40
HHW  70  87  70  89 /  30  40  20  40

FORECAST ID= 23

.TSA...
AR...NONE.
OK...NONE.

In the hours before

Local storm report, Jul 12, 11:58 AM CDT, 3 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1158 AM CDT FRI JUL 12 2002

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

0730 PM    2.5 SW RATTAN             OK   WIND DAMAGE
07/11/02   PUSHMATAHA                     TREES DOWNED BLOCKING
                                          ROADWAY. REPORTED BY
                                          PUBLIC.

0800 PM    3 E HUGO                  OK   60 MPH TSTM WIND GUST
07/11/02   CHOCTAW                        REPORTED BY PUBLIC.
Local storm report, Jul 12, 12:23 PM CDT, 2 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1223 PM CDT FRI JUL 12 2002

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

1217 PM    BIXBY                     OK   66  MPH TSTM WIND GUST
07/12/02   TULSA                          MEASURED GUST REPORTED BY
                                          SPOTTER
Special weather statement, Jul 12, 12:42 PM CDT, 2 hours 21 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-131200-

EASTERN OKLAHOMA / NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1242 PM CDT FRI JUL 12 2002

...SEVERE THUNDERSTORMS POSSIBLE ACROSS A GOOD PORTION OF EASTERN
OKLAHOMA AND NORTHWEST ARKANSAS THROUGH THIS EVENING...

STRONG TO SEVERE THUNDERSTORMS HAVE DEVELOPED ALONG A COLD FRONT
THAT IS CURRENTLY MOVING ACROSS NORTHERN OKLAHOMA. ADDITIONAL
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE COLD FRONT AND
OUTFLOW BOUNDARIES THIS AFTERNOON AND EVENING. SOME OF THE
THUNDERSTORMS COULD BECOME SEVERE WITH WIND GUSTS TO 70 MPH
THE PRIMARY THREAT. LARGE HAIL WILL ALSO BE POSSIBLE.

.DISCUSSION...
A COLD FRONT WAS MOVING ACROSS NORTHERN OKLAHOMA EARLY THIS
AFTERNOON. STRONG TO SEVERE WILL CONTINUE TO DEVELOP ALONG THE COLD
FRONT AND ANY OUTFLOW BOUNDARIES IN PLACE ACROSS THE AREA.
THE AIRMASS AHEAD OF THE FRONT IS RATHER UNSTABLE WITH CAPE VALUES
IN THE 3000 TO 4000 J/KG RANGE WITH VERY LITTLE CAP IN PLACE.
WITH SUCH AN UNSTABLE AIRMASS IN PLACE...70 MPH DOWNBURST WINDS
WILL BE POSSIBLE. THE THREAT FOR SEVERE WEATHER WILL DIMINISH AFTER
SUNSET AS WE LOSE THE HEAT OF THE DAY AND THE AIRMASS BECOMES MORE
STABLE.

RELATED GRAPHICAL INFORMATION CAN BE FOUND AT...
WWW.SRH.NOAA.GOV/TULSA
Special weather statement, Jul 12, 2:36 PM CDT, 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
236 PM CDT FRI JUL 12 2002

OKZ060>062-064>067-121955-
CREEK-MAYES-OKFUSKEE-OKMULGEE-ROGERS-TULSA-WAGONER-
236 PM CDT FRI JUL 12 2002

SEVERE THUNDERSTORM WATCH NUMBER 506 HAS BEEN CANCELLED FOR
THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA: CREEK...MAYES...
OKFUSKEE...OKMULGEE...ROGERS...TULSA AND WAGONER.

ARZ001-002-010-011-019-020-029-OKZ049-063-068>076-121955-
ADAIR-BENTON-CARROLL-CHEROKEE-CRAWFORD-DELAWARE-FRANKLIN-HASKELL-
LATIMER-LE FLORE-MADISON-MCINTOSH-MUSKOGEE-PITTSBURG-PUSHMATAHA-
SEBASTIAN-SEQUOYAH-WASHINGTON AR-
236 PM CDT FRI JUL 12 2002

SEVERE THUNDERSTORM WATCH NUMBER 506 CONTINUES UNTIL 500 PM FOR THE
FOLLOWING COUNTIES IN EASTERN OKLAHOMA: ADAIR...CHEROKEE...
DELAWARE...HASKELL..LATIMER...LE FLORE...MCINTOSH...MUSKOGEE...
PITTSBURG...PUSHMATAHA...AND SEQUOYAH.

SEVERE THUNDERSTORM WATCH NUMBER 506 CONTINUES UNTIL 500 PM FOR THE
FOLLOWING COUNTIES IN NORTHWEST ARKANSAS: BENTON...CARROLL...
CRAWFORD...FRANKLIN...MADISON...SEBASTIAN AND WASHINGTON.

Nearby

Severe Thunderstorm Warnings in Arkansas, 2002Every severe thunderstorm warning in 2002

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.