Alert archive / Arkansas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 80, NWS Tulsa, OK

April 15, 2001Carroll County, Madison County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 15, 2001, 2:05 AM CDT for Carroll County, Madison County, Arkansas. It was in force for 40 min. 9 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Apr 15, 2001, 2:05 AM CDT (07:05 UTC)
Expired: Apr 15, 2001, 2:45 AM CDT
In force: 40 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Carroll County, AR, Madison County, AR

The radar

The Western Arkansas radar (KSRX), 89 km from the middle of the area, began a volume at 07:09 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.

What was reported inside it

Time	Report	Where	Remark
Apr 15, 2:07 AM CDT	Thunderstorm Wind	Springdale, AR	Thunderstorm winds blew a tree down onto Highway 412.
Apr 15, 2:10 AM CDT	Thunderstorm Wind	Wareagle, AR	Thunderstorm winds blew down large tree limbs.
Apr 15, 2:10 AM CDT	Thunderstorm Wind	Eureka Spgs, AR	Thunderstorm winds blew down a tree at Beaver Lake.
Apr 15, 2:28 AM CDT	Thunderstorm Wind 52 E	Gaither, AR	Numerous large tree limbs were knocked down.
Apr 15, 2:28 AM CDT	Thunderstorm Wind 50 E	Harrison, AR	Several large tree limbs were blown down.
Apr 15, 2:28 AM CDT	Hail 0.75	Harrison, AR
Apr 15, 2:30 AM CDT	Thunderstorm Wind	Kingston, AR	Thunderstorm winds blew down large tree limbs.
Apr 15, 2:30 AM CDT	Thunderstorm Wind	Berryville, AR	Thunderstorm winds blew down power lines which caused a power outage to 2000 Berryville area residents.
Apr 15, 2:55 AM CDT	Thunderstorm Wind 52 E	Jasper, AR	Thunderstorm winds gusting to 60 mph knocked down some large tree limbs.

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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 15, 12:00 AM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 15, 1:00 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 7.1 hours before the alert went out and 104 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: 56 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 1245 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 150706
SVRTUL

ARC007-015-087-143-OKC001-021-145-150745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
205 AM CDT SUN APR 15 2001

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
  CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA
  ADAIR COUNTY IN NORTHEAST OKLAHOMA
  WAGONER COUNTY IN NORTHEAST OKLAHOMA
  EASTERN BENTON COUNTY IN NORTHWEST ARKANSAS
  CARROLL COUNTY IN NORTHWEST ARKANSAS
  MADISON COUNTY IN NORTHWEST ARKANSAS
  WASHINGTON COUNTY IN NORTHWEST ARKANSAS

* UNTIL 245 AM CDT

* AT 204 AM CDT...DOPPLER RADAR INDICATED DANGEROUS SEVERE   
THUNDERSTORMS ALONG A LINE EXTENDING FROM GRANDVIEW TO 3 MILES WEST  
OF ONETA...MOVING SOUTHEAST AT 45 MPH.  PEOPLE NEAR ITS PATH SHOULD 
MOVE TO A SAFE PLACE NOW! 

A 99 MPH WIND GUST WAS MEASURED WITH THIS LINE OF STORMS AT THE 
NORTHWEST ARKANSAS REGIONAL AIRPORT AT 151 AM.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BERRYVILLE... 
BENTONVILLE...FAYETTEVILLE...HUNTSVILLE...STILWELL...TAHLEQUAH AND 
WAGONER.

IF YOU ARE IN OR NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLES MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. AVOID WINDOWS!

LAT...LON 3651 9360 3612 9497 3601 9594 3581 9520
          3561 9489 3609 9255

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 Apr 14, 9:50 PM CDT, 4 hours 15 minutes earlier.

Area forecast discussion, Apr 14, 9:50 PM CDT, 4 hours 15 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
950 PM CDT SAT APR 14 2001

THE QUESTION STILL REMAINS HOW FAR SOUTH WILL THE STORM COMPLEX GO?
ONE ISOLATED SUPERCELL HAS BEEN MOVING SLIGHTLY SOUTH OF EAST ACROSS
SOUTHERN KANSAS ALL EVENING...WHILE A CLUSTER OF STORMS HAS RECENTLY
DEVELOPED TO THE WEST OF THIS STORM.  IT STILL APPEARS THAT MOST OF
NORTHEAST OKLAHOMA MAY BE SPARED...BUT AREAS NEAR THE KANSAS BORDER
WILL PROBABLY FEEL THE HEAT IN THE NEXT FEW HOURS.  THE 00Z MESOETA
KEEPS MOST OF THE PRECIPITATION ALONG AND NORTH OF THE KANSAS BORDER
THROUGH 6Z AND THEN BACK BUILDS IT INTO A MORE WESTERLY LOW-LEVEL
JET ACROSS FAR NORTHEAST OKLAHOMA AND EVENTUALLY NORTHWEST
ARKANSAS.  THIS SCENARIO IS IN LINE WITH 18Z RUN AND IN GENERAL
MAKES SENSE.  WILL THEREFORE INCREASE POPS TO CATEGORICAL IN THE
NORTHEAST ZONES AND TAPER THEM TO CHANCE NEAR THE RED RIVER. A FEW
SHOWERS REMAIN NEAR THE RED RIVER AT THIS TIME...BUT MOST OF
ACTIVITY HAS MOVED EAST OF THAT AREA.

UPDATED ZONES WILL BE SENT AROUND 10 PM SO THAT WATCH HEADLINES CAN
BE CHANGED APPROPRIATELY.  THE WATCH IN SOUTHEAST OKLAHOMA WILL
EXPIRE ANDl A NEW WATCH FOR NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS
WILL BEGIN AT THAT TIME.

FCSTID = 19

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

In the hours before

Local storm report, Apr 15, 1:26 AM CDT, 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1241 AM CDT SUN APR 15 2001

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

1239 AM    1 N FAIRFAX               OK    .88 INCH HAIL
04/15/01   OSAGE                           SPOTTER REPORT

Local storm report, Apr 15, 1:33 AM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
133 AM CDT SUN APR 15 2001

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

0110 AM    MIAMI                     OK    WIND DAMAGE
04/15/01   OTTAWA                          2 ROOFS BLOWN OFF AND
                                           NUMEROUS TREES DOWN

Local storm report, Apr 15, 1:34 AM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
134 AM CDT SUN APR 15 2001

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

1255 AM    7 E CENTRALIA             OK    60 MPH TSTM GUST
04/15/01   CRAIG                           OKLAHOMA MESONET

Local storm report, Apr 15, 1:40 AM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
140 AM CDT SUN APR 15 2001

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

g0105 AM    2 NE MIAMI                OK    68 MPH TSTM GUST
04/15/01   OTTAWA                          OKLAHOMA MESONET

Local storm report, Apr 15, 2:02 AM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
202 AM CDT SUN APR 15 2001

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

0151 AM    HIGHFILL                  AR    86 MPH TSTM GUST
04/15/01   BENTON                          ASOS REPORT

Local storm report, Apr 15, 2:04 AM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT...CORRECTED WIND SPEED...
NATIONAL WEATHER SERVICE TULSA OK
204 AM CDT SUN APR 15 2001

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

0151 AM    HIGHFILL                  AR    99 MPH TSTM GUST
04/15/01   BENTON                          ASOS REPORT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 1:27 AM CDT	Severe Thunderstorm Warning	TSA	Benton	48 min
Apr 15, 2:05 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	40 min
Apr 15, 3:03 AM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin	57 min
Apr 15, 3:54 AM CDT	Severe Thunderstorm Warning	TSA	Franklin, Sebastian	66 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2001 Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.