Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 72, NWS Tulsa, OK

April 3, 1999Nowata County, Washington County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 3, 1999, 4:04 AM CST for Nowata County, Washington County, Oklahoma. It was in force for 41 min. 1 report 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 3, 1999, 4:04 AM CST (10:04 UTC)
Expired: Apr 3, 1999, 4:45 AM CST
In force: 41 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Nowata County, OK, Washington County, OK

What was reported inside it

Time	Report	Where	Remark
Apr 3, 4:15 AM CST	Thunderstorm Wind	Dewey, OK	Several tree limbs were blown down.

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 3, 12:45 AM CST	Severe Thunderstorm Watch	SPC	5 hr
Apr 3, 3:45 AM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 10.1 hours before the alert went out and 179 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: 862 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1523 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 272 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 031004 RRA
SVRTUL
OKC105-147-031045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
404 AM CST SAT APR 3 1999

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NOWATA COUNTY IN NORTHEAST OKLAHOMA
  WASHINGTON COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 445 AM CST

* AT 402 AM CST A SEVERE THUNDERSTORM WAS LOCATED 8 MILES SOUTH OF
  BARTLESVILLE...MOVING EAST AT 40 MPH.  

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...  DEWEY...
  BARTLESVILLE...WATOVA...SOUTH COFFEYVILLE...WANN...LENAPAH...
  DELAWARE AND NOWATA

WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA.

WINDOWS WERE REPORTED BLOWN OUT OF A HOUSE IN BARTLESVILLE AT 359 AM 
WITH THIS STORM.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

LAT...LON 3682 9603 3654 9597 3665 9544 3710 9555

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 3, 12:53 AM CST, 3 hours 11 minutes earlier.

Area forecast discussion, Apr 3, 12:53 AM CST, 3 hours 11 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1253 AM CST SAT APR 3 1999

JUST UPDATED ZONES TO ADD NEW WW HEADLINE TO APPROPRIATE ZONES.  ALSO
INCREASED OVERNIGHT LOWS AND INCREASED POPS IN THE ZONES WITH THE
WATCH GIVEN SOLID NATURE OF THE LINE WHICH WILL APPROACH FROM THE
WEST BEFORE SUNRISE. LATEST SURFACE ANALYSIS SHOWS LARGEST PRESSURE
FALLS AND THE LOWEST LIFTED INDICES SOUTH ALONG THE RED
RIVER...THOUGH MODERATE INSTABILITIES AND PRESSURE FALLS EXTEND
NORTHEASTWARD ALL THE WAY INTO CENTRAL MO.

MORE BETWEEN 400 AND 500 AM.

FCSTID = 22

.TUL...
OK...SEVERE THUNDERSTORM WATCH UNTIL 600 AM CST SATURDAY FOR ZONES
OKZ054>056...OKTZ059>061...OKZ064>066.

AR...NONE.

In the hours before

Local storm report, Apr 3, 3:16 AM CST, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
416 AM CST SAT APR 03 1999

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

0306 AM 4   BRISTOW                   OK   60 MPH TSTM GUST
04/03/99   CREEK

Local storm report, Apr 3, 3:18 AM CST, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
418 AM CST SAT APR 03 1999

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

0306 AM :   MANNFORD                  OK   60 MPH TSTM GUST
04/03/99   CREEK

0306 AM    MANNFORD                  OK   .75 INCH HAIL
04/03/99   CREEK

Local storm report, Apr 3, 3:21 AM CST, 43 minutes before

STORM REPORT CORRECTED                ...CORRECTED FOR TIME...
NATIONAL WEATHER SERVICE TULSA, OK
321 AM CST SAT APR 03 1999

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

0306 AM    MANNFORD                  OK   60 MPH TSTM GUST
04/03/99   CREEK

0306 AM    MANNFORD                  OK   .75 INCH HAIL
04/03/99   CREEK

Local storm report, Apr 3, 3:52 AM CST, 12 minutes before

STORM REPORT CORRECTED                  ...CORRECTED FOR TIME...
NATIONAL WEATHER SERVICE TULSA, OK
352 AM CST SAT APR 03 1999

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

0344 AM    BIXBY                     OK   .75 INCH HAIL
04/03/99   TULSA

0344 AM    BIXBY                     OK   60 MPH TSTM GUST
04/03/99   TULSA

Local storm report, Apr 3, 4:02 AM CST, 2 minutes before

STORM REPORT CORRECTED                   ...CORRECTED FOR TIME...
NATIONAL WEATHER SERVICE TULSA, OK
402 AM CST SAT APR 03 1999

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

0359 AM    BARTLESVILLE              OK   WIND DAMAGE
04/03/99   WASHINGTON                     WINDOW BLOWN OUT OF A
                                          HOUSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 2:32 AM CST	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee	58 min
Apr 3, 3:11 AM CST	Severe Thunderstorm Warning	TSA	Okfuskee, Okmulgee, Tulsa	49 min
Apr 3, 3:11 AM CST	Severe Thunderstorm Warning	TSA	Washington	49 min
Apr 3, 3:32 AM CST	Severe Thunderstorm Warning	TSA	Osage	28 min
Apr 3, 3:47 AM CST	Severe Thunderstorm Warning	TSA	Muskogee, Wagoner	43 min
Apr 3, 3:47 AM CST	Severe Thunderstorm Warning	TSA	Rogers	43 min
Apr 3, 4:23 AM CST	Severe Thunderstorm Warning	TSA	Craig, Mayes	37 min
Apr 3, 4:23 AM CST	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Wagoner	37 min
Apr 3, 4:23 AM CST	Severe Thunderstorm Warning	TSA	McIntosh	37 min
Apr 3, 4:47 AM CST	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	58 min
Apr 3, 5:13 AM CST	Severe Thunderstorm Warning	TSA	Latimer	62 min
Apr 3, 6:00 AM CST	Severe Thunderstorm Warning	TSA	Choctaw	45 min
Apr 3, 6:12 AM CST	Flash Flood Warning	TSA	Pushmataha	3 hr
Apr 3, 6:59 AM CST	Flash Flood Warning	TSA	Latimer, LeFlore	3 hr
Apr 3, 7:42 AM CST	Severe Thunderstorm Warning	TSA	LeFlore	48 min
Apr 3, 10:06 AM CST	Severe Thunderstorm Warning	TSA	Okfuskee	39 min
Apr 3, 10:25 AM CST	Severe Thunderstorm Warning	TSA	Pittsburg, Pushmataha	65 min
Apr 3, 11:06 AM CST	Severe Thunderstorm Warning	TSA	Latimer, Pushmataha	39 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1999 Every 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.