Alert archive / Arkansas / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 239, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 17, 1999, 2:50 AM CDT for Benton County, Washington County, Arkansas; Adair County, Oklahoma. It was in force for 55 min. 12 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 17, 1999, 2:50 AM CDT (07:50 UTC)
- Expired
- May 17, 1999, 3:45 AM CDT
- In force
- 55 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Benton County, AR, Washington County, AR, Adair County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 17, 3:00 AM CDT | Thunderstorm Wind | Gentry, AR | Around 300 AM CDT in Gentry, winds left uprooted trees, downed power lines, and blocked roads. |
| May 17, 3:00 AM CDT | Thunderstorm Wind | Siloam Spgs, AR | Around 300 AM CDT in Siloam Springs, a 60-70 foot tall tree blew onto a parked motor home on Oak Crest Drive. |
| May 17, 3:05 AM CDT | Thunderstorm Wind 61 | Westville, OK | At 305 AM CDT, the Oklahoma mesonet site west of Westville measured a wind gust to 70 miles an hour. These winds then moved east to Westville, blowing down numerous trees and limbs in Westville. On Buffington Road, several limbs blocked traffic during the mo |
| May 17, 3:15 AM CDT | Thunderstorm Wind | Harmon, AR | High winds uprooted several trees and damaged power lines in Harmon around 315 AM CDT. The wind snapped nine poles and damaged at least three transformers. In Tontitown, around 320 AM CDT, a restaurant had its awning blown off, and a tree fell onto a mobile |
| May 17, 3:20 AM CDT | Thunderstorm Wind | Gravette, AR | A U-Haul trailer was blown over, and power lines were blown down in Gravette. |
| May 17, 3:25 AM CDT | Thunderstorm Wind | Cincinnati, AR | Several large trees were uprooted, and many large tree limbs were blown down. |
| May 17, 3:25 AM CDT | Thunderstorm Wind | Prairie Grove, AR | Trees were blown down in Prarie Grove. |
| May 17, 3:30 AM CDT | Thunderstorm Wind | Highfill, AR | High winds blew over an 84,000-square-foot airplane hangar under construction at the Northwest Arkansas Regional Airport. There was also minor damage to an existing hangar at the airport. The ASOS at the airport measured a peak wind gust of 46 knots (53 mph) |
| May 17, 3:30 AM CDT | Thunderstorm Wind | Fayetteville, AR | High winds blew the roof off of a clothing store in the 2300 block of College Avenue in Fayetteville. The ASOS at the Fayetteville Regional Airport (Drake Field) measured a peak wind gust of 47 knots (54 mph). |
| May 17, 3:40 AM CDT | Thunderstorm Wind | Rogers, AR | At least a half-dozen trees were blown down in Rogers. County road crews had to clear at least 50 trees and tree limbs that were blown into roads throughout Benton County. |
| May 17, 3:45 AM CDT | Thunderstorm Wind | Elkins, AR | Trees and tree limbs were blown down near Elkins. |
| May 17, 3:47 AM CDT | Thunderstorm Wind | Wareagle, AR | Several trees were blown down in War Eagle. |
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 |
|---|---|---|---|
| May 17, 12:30 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 7.8 hours before the alert went out and 106 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
- 1195 J/kg
- Mixed-layer CIN
- -162 J/kg
- Mixed-layer LCL
- 1564 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 275 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 7.5
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS54 KTSA 170751 RRA SVRTUL ARC007-033-131-143-OKC001-079-170845- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 250 AM CDT MON MAY 17 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR ADAIR COUNTY IN EAST CENTRAL OKLAHOMA BENTON COUNTY IN NORTHWEST ARKANSAS CRAWFORD COUNTY IN NORTHWEST ARKANSAS SEBASTIAN COUNTY IN NORTHWEST ARKANSAS WASHINGTON COUNTY IN NORTHWEST ARKANSAS NORTHERN AND CENTRAL LE FLORE COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 345 AM CDT * AT 246 AM CDT SEVERE THUNDERSTORMS CAPABLE OF PRODUCING WINDS UP TO 70 MPH WERE LOCATED ALONG A LINE EXTENDING FROM SCRAPER TO ELDON TO MARBLE CITY TO MCCURTAIN...MOVING EAST AT 45 MPH. DIME SIZED HAIL IS ALSO POSSIBLE WITH THIS LINE OF STORMS. * SOME LOCATIONS AFFECTED INCLUDE... CEDARVILLE...ALMA...VAN BUREN...MOUNTAINBURG...FARMINGTON...PRAIRIE...GROVE...SPRINGDALE... FAYETTEVILLE...BLOOMER...GREENWOOD...FORT SMITH... WAR EAGLE...HIGHFILL... GENTRY...ROGERS...SILOAM SPRINGS...BENTONVILLE...ARKOMA...POCOLA...SPIRO...BOKOSHE... PANAMA...WESTVILLE...CHRISTIE... THESE STORMS WILL PRODUCE EXTENSIVE PROPERTY DAMAGE - TAKE COVER NOW IF NO UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. ABANDON MOBILE HOMES AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS
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 16, 10:00 PM CDT, 4 hours 50 minutes earlier.
Area forecast discussion, May 16, 10:00 PM CDT, 4 hours 50 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1000 PM CDT SUN MAY 16 1999 A LINE OF SHOWERS AND THUNDERSTORMS AHEAD OF THE COLD FRONT LOCATED FROM NORTHEAST TO SOUTHEAST KANSAS MOVING TO THE NORTHEAST...SECOND AREA OF STORMS WHICH DEVELOPED AHEAD OF THE DRY LINE NOW MOVING ACROSS CENTRAL OKLAHOMA. EXPECT THE STORMS IN CENTRAL OKLAHOMA WILL WEAKEN SOME AS THEY APPOROACH OUR FORECAST AREA AFTER MIDNIGHT...BUT SOME MAY STILL BE MARGINAL AS THEY MOVE INTO NORTHEAST OKLAHOMA. TORNADO WATCH 279 IN EFFECT FOR OSAGE AND PAWNEE COUNTIES UNTIL 4 AM AND EXPECT MORE WATCHES FOR FORECAST AREA BEFORE NIGHT IS THROUGH AS COLD FRONT WILL SLOWLY MOVE INTO AREA JUST BEFORE DAYBREAK. HAVE UPPED THE POP TO LIKELY ACROSS NORTH AND CENTRAL PORTIONS OF OKLAHOMA TO CHANCE IN FAR SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS. UPDATED FORECAST WILL BE OUT WITHIN 5 MINUTES. 33 .TUL... AR...NONE. OK...NONE.
In the hours before
Local storm report, May 17, 2:38 AM CDT, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
238 AM CDT MON MAY 17 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0215 AM OKTAHA OK WIND DAMAGE
05/17/99 MUSKOGEE 4 MOBILE HOMES DAMAGEDLocal storm report, May 17, 2:38 AM CDT, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
238 AM CDT MON MAY 17 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0215 AM OKTAHA OK WIND DAMAGE
05/17/99 MUSKOGEE 4 MOBILE HOMES DAMAGEDLocal storm report, May 17, 2:46 AM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
246 AM CDT MON MAY 17 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0245 AM 5 W HULBERT OK 60 MPH TSTM GUST
05/17/99 CHEROKEELocal storm report, May 17, 2:46 AM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
246 AM CDT MON MAY 17 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0245 AM 5 W HULBERT OK 60 MPH TSTM GUST
05/17/99 CHEROKEELocal storm report, May 17, 2:47 AM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
247 AM CDT MON MAY 17 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0245 AM PRYOR OK 65 MPH TSTM GUST
05/17/99 MAYESLocal storm report, May 17, 2:47 AM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
247 AM CDT MON MAY 17 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0245 AM PRYOR OK 65 MPH TSTM GUST
05/17/99 MAYESThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 2:50 AM CDT | Severe Thunderstorm Warning | TSA | Crawford, Sebastian | 55 min |
| May 17, 3:36 AM CDT | Severe Thunderstorm Warning | TSA | Franklin, Madison | 54 min |
| May 17, 3:36 AM CDT | Severe Thunderstorm Warning | TSA | Carroll | 54 min |
| May 17, 3:45 AM CDT | Severe Thunderstorm Warning | TSA | Crawford, Washington | 15 min |
| May 17, 3:45 AM CDT | Severe Thunderstorm Warning | TSA | Benton | 15 min |
| May 17, 10:30 AM CDT | Severe Thunderstorm Warning | TSA | Crawford, Washington | 45 min |
| May 17, 10:54 AM CDT | Severe Thunderstorm Warning | TSA | Carroll | 51 min |
| May 17, 10:55 AM CDT | Tornado Warning | TSA | Washington | 35 min |
| May 17, 11:02 AM CDT | Severe Thunderstorm Warning | TSA | Madison | 28 min |
| May 17, 3:07 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Franklin, Sebastian | 38 min |
| May 17, 3:11 PM CDT | Flash Flood Warning | TSA | Franklin, Sebastian | 2 hr |
| May 17, 3:42 PM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 48 min |
| May 17, 3:58 PM CDT | Severe Thunderstorm Warning | TSA | Madison | 17 min |
| May 17, 4:56 PM CDT | Flash Flood Warning | TSA | Franklin, Sebastian | 3 hr |
| May 17, 5:09 PM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 51 min |
| May 16, 11:24 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 66 min |
| May 16, 11:55 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 50 min |
| May 17, 12:26 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 49 min |
| May 17, 12:32 AM CDT | Severe Thunderstorm Warning | TSA | Washington | 43 min |
| May 17, 12:50 AM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 25 min |
| May 17, 12:52 AM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 53 min |
| May 17, 1:14 AM CDT | Severe Thunderstorm Warning | TSA | Nowata | 46 min |
| May 17, 1:18 AM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Okmulgee | 57 min |
| May 17, 1:18 AM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 57 min |
| May 17, 1:34 AM CDT | Severe Thunderstorm Warning | TSA | Craig | 41 min |
| May 17, 2:04 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, Muskogee | 56 min |
| May 17, 2:27 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Sequoyah | 63 min |
| May 17, 2:36 AM CDT | Severe Thunderstorm Warning | TSA | Delaware, Mayes | 54 min |
| May 17, 2:50 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 55 min |
| May 17, 3:07 AM CDT | Severe Thunderstorm Warning | TSA | Craig, Ottawa | 53 min |
| May 17, 8:13 AM CDT | Severe Thunderstorm Warning | TSA | Creek | 32 min |
| May 17, 8:30 AM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 30 min |
| May 17, 9:16 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Wagoner | 29 min |
| May 17, 10:00 AM CDT | Severe Thunderstorm Warning | TSA | Haskell | 45 min |
| May 17, 10:10 AM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 35 min |
| May 17, 10:30 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 45 min |
| May 17, 1:55 PM CDT | Severe Thunderstorm Warning | TSA | Haskell | 35 min |
| May 17, 2:05 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 40 min |
| May 17, 2:31 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 44 min |
| May 17, 2:32 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 43 min |
| May 17, 3:05 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 40 min |
| May 17, 3:11 PM CDT | Flash Flood Warning | TSA | LeFlore | 2 hr |
| May 17, 3:35 PM CDT | Flash Flood Warning | TSA | Latimer | 115 min |
| May 17, 4:08 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore | 37 min |
| May 17, 4:51 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 54 min |
| May 17, 4:56 PM CDT | Flash Flood Warning | TSA | LeFlore | 3 hr |
Nearby
Severe Thunderstorm Warnings in Arkansas, 1999Severe Thunderstorm Warnings in Oklahoma, 1999Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.