Alert archive / Arkansas / Tornado Warnings in 1999
Tornado Warning 29, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 22, 1999, 8:23 PM CDT for Washington County, Arkansas. It was in force for 22 min. No storm report in the archive falls 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.
The facts
- Issued
- Apr 22, 1999, 8:23 PM CDT (01:23 UTC)
- Expired
- Apr 22, 1999, 8:45 PM CDT
- In force
- 22 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Washington County, AR
The radar
The Western Arkansas radar (KSRX), 99 km from the middle of the area, began a volume at 01:26 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 |
|---|---|---|---|
| Apr 22, 4:00 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.4 hours before the alert went out and 88 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.
- Mixed-layer CAPE
- 316 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 823 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 326 m²/s²
- 0-3 km storm-relative helicity
- 336 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTSA 230126 COR TORTUL ARC143-230145- BULLETIN - EAS ACTIVATION REQUESTED...CORRECTED TORNADO WARNING NATIONAL WEATHER SERVICE TULSA OK 823 PM CDT THU APR 22 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * TORNADO WARNING FOR NORTHERN WASHINGTON COUNTY IN ARKANSAS * UNTIL 845 PM CDT * AT 823 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION OVER TONTITOWN. MOVING EAST AT 35 MPH...THIS DANGEROUS STORM COULD PRODUCE A TORNADO AT ANY TIME. SPOTTERS REPORTED A FUNNEL CLOUD OVER TONTITOWN AT 821 PM. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... TONTITOWN... SPRINGDALE AND NORTHERN PARTS OF FAYETTEVILLE NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS - TAKhE COVER NOW! IF YOU WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE! LAT...LON 3626 9430 3609 9434 3600 9395 3620 9390
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Apr 22, 7:50 PM CDT, 33 minutes earlier.
Area forecast discussion, Apr 22, 7:50 PM CDT, 33 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 750 PM CDT THU APR 22 1999 LINE OF SEVERE STORMS CONTINUES TO PUSH SE ALONG SURFACE BOUNDARY. DONT EXPECT LINE TO CONTINUE TO PUSH SOUTH AND SHOULD HANG UP AFTER DARK. THREAT FOR FLOODING MAY DEVELOP IF STORMS DO NOT DIE WITH HEATING. WILL COUNT ON STORMS DIMINISHING FOR NOW AND TWEAK POPS UP A FEW COUNTIES AHEAD OF CURRENT PRECIP. WILL DROP POPS OR REWORD TO LATE TONIGHT FOR POSSIBLE REDEVELOPMENT NORTH OF ONGOING PRECIP. BOUNDARY EXPECTED TO STALL WITH VERY MOIST AIR SET TO OVERRUN IT. UPDATED ZONES TO ADJUST TORNADO WATCH HEADLINES AS WELL. ANOTHER UPDATE LATER THIS EVE. /13 AR...NONE. OK...NONE.
In the hours before
Local storm report, Apr 22, 4:30 PM CDT, 3 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED 2ND REPORT
NATIONAL WEATHER SERVICE TULSA OK
430 PM CDT THU APR 22 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0415 PM 2 E LENAPAH OK 2.75 INCH HAIL
04/22/99 NOWATASpecial weather statement, Apr 22, 7:43 PM CDT, 40 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-231100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 743 PM CDT THU APR 22 1999 TORNADO WATCH 166 REMAINS IN EFFECT UNTIL 9PM FOR THE FOLLOWING COUNTIES: IN NORTHEAST OKLAHOMA OKMULGEE...MUSKOGEE...WAGONER...CHEROKEE...ADAIR...DELAWARE AND MAYES IN NORTHWEST ARKANSAS BENTON...WASHINGTON AND CRAWFORD THE TORNADO WATCH HAS BEEN CANCELED FOR THE FOLLOWING COUNTIES: IN NORTHEAST OKLAHOMA WASHINGTON...NOWATA...CRAIG...OTTAWA...CREEK...TULSA AND ROGERS. AT 740 PM...RADAR INDICATED THE LINE OF STRONG TO SEVERE THUNDERSTORMS HAD MOVED SOUTHEASTWARD INTO FAR NORTHWEST ARKANSAS AND EASTCENTRAL OKLAHOMA. THE THREAT FOR SEVERE STORMS AND TORNADOES WILL CONTINUE UNTIL 9AM IN THE WATCH AREA. IF THREATENING WEATHER APPROACHES MOVE TO SAFE SHELTER.
Special weather statement, Apr 22, 7:43 PM CDT, 40 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-231100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 743 PM CDT THU APR 22 1999 TORNADO WATCH 166 REMAINS IN EFFECT UNTIL 9PM FOR THE FOLLOWING COUNTIES: IN NORTHEAST OKLAHOMA OKMULGEE...MUSKOGEE...WAGONER...CHEROKEE...ADAIR...DELAWARE AND MAYES IN NORTHWEST ARKANSAS BENTON...WASHINGTON AND CRAWFORD THE TORNADO WATCH HAS BEEN CANCELED FOR THE FOLLOWING COUNTIES: IN NORTHEAST OKLAHOMA WASHINGTON...NOWATA...CRAIG...OTTAWA...CREEK...TULSA AND ROGERS. AT 740 PM...RADAR INDICATED THE LINE OF STRONG TO SEVERE THUNDERSTORMS HAD MOVED SOUTHEASTWARD INTO FAR NORTHWEST ARKANSAS AND EASTCENTRAL OKLAHOMA. THE THREAT FOR SEVERE STORMS AND TORNADOES WILL CONTINUE UNTIL 9AM IN THE WATCH AREA. IF THREATENING WEATHER APPROACHES MOVE TO SAFE SHELTER.
Special weather statement, Apr 22, 7:45 PM CDT, 38 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-230200- SPECIAL WEATHER STATEMENT...CORRECTED TIMES AND EXPIRATION NATIONAL WEATHER SERVICE TULSA OK 745 PM CDT THU APR 22 1999 TORNADO WATCH 166 REMAINS IN EFFECT UNTIL 9PM FOR THE FOLLOWING COUNTIES: IN NORTHEAST OKLAHOMA OKMULGEE...MUSKOGEE...WAGONER...CHEROKEE...ADAIR...DELAWARE AND MAYES IN NORTHWEST ARKANSAS BENTON...WASHINGTON AND CRAWFORD THE TORNADO WATCH HAS BEEN CANCELED FOR THE FOLLOWING COUNTIES: IN NORTHEAST OKLAHOMA WASHINGTON...NOWATA...CRAIG...OTTAWA...CREEK...TULSA AND ROGERS. AT 740 PM...RADAR INDICATED THE LINE OF STRONG TO SEVERE THUNDERSTORMS HAD MOVED SOUTHEASTWARD INTO FAR NORTHWEST ARKANSAS AND EASTCENTRAL OKLAHOMA. THE THREAT FOR SEVERE STORMS AND TORNADOES WILL CONTINUE UNTIL 9PM IN THE WATCH AREA. IF THREATENING WEATHER APPROACHES MOVE TO SAFE SHELTER.
Special weather statement, Apr 22, 7:45 PM CDT, 38 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-230200- SPECIAL WEATHER STATEMENT...CORRECTED TIMES AND EXPIRATION NATIONAL WEATHER SERVICE TULSA OK 745 PM CDT THU APR 22 1999 TORNADO WATCH 166 REMAINS IN EFFECT UNTIL 9PM FOR THE FOLLOWING COUNTIES: IN NORTHEAST OKLAHOMA OKMULGEE...MUSKOGEE...WAGONER...CHEROKEE...ADAIR...DELAWARE AND MAYES IN NORTHWEST ARKANSAS BENTON...WASHINGTON AND CRAWFORD THE TORNADO WATCH HAS BEEN CANCELED FOR THE FOLLOWING COUNTIES: IN NORTHEAST OKLAHOMA WASHINGTON...NOWATA...CRAIG...OTTAWA...CREEK...TULSA AND ROGERS. AT 740 PM...RADAR INDICATED THE LINE OF STRONG TO SEVERE THUNDERSTORMS HAD MOVED SOUTHEASTWARD INTO FAR NORTHWEST ARKANSAS AND EASTCENTRAL OKLAHOMA. THE THREAT FOR SEVERE STORMS AND TORNADOES WILL CONTINUE UNTIL 9PM IN THE WATCH AREA. IF THREATENING WEATHER APPROACHES MOVE TO SAFE SHELTER.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 7:15 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 30 min |
| Apr 22, 8:08 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 37 min |
| Apr 22, 8:44 PM CDT | Severe Thunderstorm Warning | TSA | Washington | 46 min |
| Apr 22, 9:32 PM CDT | Severe Thunderstorm Warning | TSA | Washington | 28 min |
| Apr 22, 9:58 PM CDT | Severe Thunderstorm Warning | TSA | Washington | 32 min |
| Apr 22, 10:02 PM CDT | Severe Thunderstorm Warning | TSA | Crawford | 43 min |
| Apr 22, 10:30 PM CDT | Severe Thunderstorm Warning | TSA | Franklin, Madison | 45 min |
| Apr 22, 10:45 PM CDT | Severe Thunderstorm Warning | TSA | Crawford | 30 min |
Nearby
Tornado Warnings in Arkansas, 1999Every tornado warning in 1999Tornadoes in 1999
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.