Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 64, NWS Tulsa, OK

April 3, 1999Creek County, Osage County, Pawnee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 3, 1999, 2:32 AM CST for Creek County, Osage County, Pawnee County, Oklahoma. It was in force for 58 min. 5 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 3, 1999, 2:32 AM CST (08:32 UTC)
Expired: Apr 3, 1999, 3:30 AM CST
In force: 58 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Creek County, OK, Osage County, OK, Pawnee County, OK

What was reported inside it

Time	Report	Where	Remark
Apr 3, 2:40 AM CST	Thunderstorm Wind	Ponca City, OK
Apr 3, 3:06 AM CST	Thunderstorm Wind 52	Bristow, OK
Apr 3, 3:06 AM CST	Hail 0.75	Mannford, OK
Apr 3, 3:06 AM CST	Thunderstorm Wind 52	Mannford, OK
Apr 3, 3:10 AM CST	Thunderstorm Wind 61	Cleveland, OK	Winds estimated as high as 70 mph destroyed a car port, damaged a motel awning, uprooted trees, blew a hole through the middle school's gym roof, and knocked down numerous 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 3, 12:45 AM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 8.5 hours before the alert went out and 137 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: 1394 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 978 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 030832 RRA
SVRTUL
OKC037-113-117-030915-

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

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
  CREEK COUNTY IN NORTHEAST OKLAHOMA
  OSAGE COUNTY IN NORTHEAST OKLAHOMA
  PAWNEE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 330 AM CST

* AT 230 AM CST SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 19 MILES WEST OF BURBANK TO 10 MILES SOUTHWEST OF
  PAWNEE TO 20 MILES SOUTHWEST OF DEPEW...MOVING EAST AT 50 MPH.

* SOME LOCATIONS AFFECTED INCLUDE...  KELLYVILLE...MANNFORD...
  OILTON...DRUMRIGHT...SHAMROCK...DEPEW...SLICK...BRISTOW...
  WESTPORT...RALSTON...CLEVELAND...SKEDEE...BLACKBURN...MARAMEC...
  HALLETT...TERLTON...JENNINGS...PAWNEE...BURBANK...FAIRFAX...
  WYNONA...HOMINY...OSAGE...SHIDLER AND PAWHUSKA

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

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

LAT...LON 3675 9716 3626 9704 3557 9689 3572 9617
          3635 9624 3680 9632

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, 1 hour 39 minutes earlier.

Area forecast discussion, Apr 3, 12:53 AM CST, 1 hour 39 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

Special weather statement, Apr 2, 8:33 PM CST, 5 hours 59 minutes before

OKZ054-055-059-064-030245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
833 PM CST FRI APR 2 1999

TORNADO WATCH 102 HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES IN

EASTERN OKLAHOMA...
         CREEK     WASHINGTON

TORNADO WATCH NUMBER 104 HAS BEEN ISSUED FOR PAWNEE AND OSAGE
COUNTIES IN NORTHEAST OKLAHOMA UNTIL 2 AM CST.

STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION.

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 4:04 AM CST	Severe Thunderstorm Warning	TSA	Nowata, Washington	41 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.