Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 321, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 23, 1999, 2:30 AM CDT for Rogers County, Wagoner County, Oklahoma. It was in force for 60 min. 3 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 23, 1999, 2:30 AM CDT (07:30 UTC)
- Expired
- May 23, 1999, 3:30 AM CDT
- In force
- 60 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Rogers County, OK, Wagoner County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 23, 2:45 AM CDT | Thunderstorm Wind | Claremore, OK | Several trees were blown down in Claremore. |
| May 23, 3:00 AM CDT | Thunderstorm Wind | Wagoner, OK | Scattered tree limbs were blown down in Wagoner. |
| May 23, 3:15 AM CDT | Hail 0.88 | Inola, OK |
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 23, 12:15 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 23, 2:15 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 7.5 hours before the alert went out and 177 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
- 189 J/kg
- Mixed-layer CIN
- -135 J/kg
- Mixed-layer LCL
- 1465 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS54 KTSA 230734 RRA SVRTUL OKC037-041-097-113-115-117-131-143-145-230830- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 230 AM CDT SUN MAY 23 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR NORTHERN CREEK COUNTY IN NORTHEAST OKLAHOMA WESTERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA MAYES COUNTY IN NORTHEAST OKLAHOMA SOUTHEASTERN OSAGE COUNTY IN NORTHEAST OKLAHOMA SOUTHERN OTTAWA COUNTY IN NORTHEAST OKLAHOMA PAWNEE COUNTY IN NORTHEAST OKLAHOMA ROGERS COUNTY IN NORTHEAST OKLAHOMA TULSA COUNTY IN NORTHEAST OKLAHOMA NORTHERN WAGONER COUNTY IN NORTHEAST OKLAHOMA * UNTIL 330 AM CDT * AT 230 AM CDT SEVERE THUNDERSTORMS CAPABLE OF PRODUCING WINDS UP TO 65 MPH WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES SOUTH OF WYANDOTTE TO CLAREMORE TO PAWNEE...MOVING SOUTHEAST AT 40 MPH. * SOME LOCATIONS AFFECTED INCLUDE...GROVE...PRYOR...TULSA...SAPULPA AND HALLETT. DAMAGING WINDS MAY OCCUR UP TO 5 MILES AHEAD OF THE HEAVY RAIN AND HAIL. MOVE TO A SAFE PLACE NOW.
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 22, 11:07 PM CDT, 3 hours 23 minutes earlier.
Area forecast discussion, May 22, 11:07 PM CDT, 3 hours 23 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1107 PM CDT SAT MAY 22 1999 HAVE ISSUED A FLASH FLOOD WATCH FOR MUCH OF EASTERN OKLAHOMA. WHILE SOME UNCERTAINTIES REMAIN ON THE EVOLUTION OF THE COMPLEX TO THE NORTH...IT APPEARS THAT THERE IS A GOOD CHANCE THAT IT WILL TURN MORE SOUTH AND TRAVEL ALONG AND JUST SOUTH OF THE H850 WEAK BAROCLINIC ZONE EXTENDING NEAR AN ICT-FYV LINE AT 00Z. WHILE THERE WILL BE A SEVERE THREAT...AM ALSO CONCERNED THAT WITH A 30 KNOT H850 JET FEEDING INTO THE COMPLEX...THE SOUTHWEST EDGE OF THE COMPLEX WILL ANCHOR IN OR NEAR THE AREA AND RESULT IN A PERIOD OF TRAINING ECHOES. LAPES RATES IN THE AREA ARE STEEP RESULTING SUFFICIENT ELEVATED INSTABILITY TO SUPPORT THE IDEA OF BOTH A HAIL AND WIND THREAT WITH THESE STORMS..DESPITE A CONVECTIVELY MODIFIED BOUNDARY LAYER IN MOST OF THE FORECAST AREA. AT THIS TIME WE ARE EXPECTING THAT THE STORMS WILL BE MOVING INTO OSAGE / PAWNEE COUNTIES AROUND 07Z AND PROGRESS SOUTHEAST FROM THERE. /8 .TUL... AR...NONE. OK...OKZ054>075 FLASH FLOOD WATCH TONIGHT.
In the hours before
Local storm report, May 22, 9:13 PM CDT, 5 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
913 PM CDT SAT MAY 22 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0840 PM SPIRO OK 60 MPH TSTM GUST
05/22/99 LE FLORE
0840 PM SPIRO OK .75 INCH HAIL
05/22/99 LE FLORE
0900 PM HEAVENER OK WIND DAMAGE
05/22/99 LE FLORE ROOF BLOWN OFF BUILDING
0904 PM HEAVENER OK .88 INCH HAIL
05/22/99 LE FLORELocal storm report, May 22, 9:13 PM CDT, 5 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
913 PM CDT SAT MAY 22 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0840 PM SPIRO OK 60 MPH TSTM GUST
05/22/99 LE FLORE
0840 PM SPIRO OK .75 INCH HAIL
05/22/99 LE FLORE
0900 PM HEAVENER OK WIND DAMAGE
05/22/99 LE FLORE ROOF BLOWN OFF BUILDING
0904 PM HEAVENER OK .88 INCH HAIL
05/22/99 LE FLORESpecial weather statement, May 22, 10:10 PM CDT, 4 hours 20 minutes before
OKZ076-230330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1010 PM CDT SAT MAY 22 1999 SEVERE THUNDERSTORM WATCH NUMBER 314 HAS BEEN CANCELLED IN LE FLORE COUNTY OKLAHOMA. THE SEVERE STORMS THAT HAVE MOVED THROUGH THAT AREA HAVE MOVED INTO MCCURTAIN COUNTY AND ADJACENT PARTS OF SOUTHWEST ARKANSAS AND NO LONGER POSE A THREAT TO LE FLORE COUNTY. THUNDERSTORMS OVER KANSAS MAY TURN TO THE SOUTH DURING THE NIGHT AND COULD REACH LE FLORE COUNTY TOWARD MORNING...BUT UNTIL THEN THE THREAT FOR SEVERE WEATHER HAS ENDED. STAY TUNED TO THIS STATION FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE.
Special weather statement, May 22, 10:10 PM CDT, 4 hours 20 minutes before
OKZ076-230330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1010 PM CDT SAT MAY 22 1999 SEVERE THUNDERSTORM WATCH NUMBER 314 HAS BEEN CANCELLED IN LE FLORE COUNTY OKLAHOMA. THE SEVERE STORMS THAT HAVE MOVED THROUGH THAT AREA HAVE MOVED INTO MCCURTAIN COUNTY AND ADJACENT PARTS OF SOUTHWEST ARKANSAS AND NO LONGER POSE A THREAT TO LE FLORE COUNTY. THUNDERSTORMS OVER KANSAS MAY TURN TO THE SOUTH DURING THE NIGHT AND COULD REACH LE FLORE COUNTY TOWARD MORNING...BUT UNTIL THEN THE THREAT FOR SEVERE WEATHER HAS ENDED. STAY TUNED TO THIS STATION FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE.
Local storm report, May 22, 10:42 PM CDT, 3 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1042 PM CDT SAT MAY 22 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0400 PM SILOAM SPGS AR .75 INCH HAIL
05/22/99 BENTON
0440 PM WESTVILLE OK .75 INCH HAIL
05/22/99 ADAIR
0530 PM 3 W MARAMEC OK 1 INCH HAIL
05/22/99 PAWNEE
0530 PM BARNSDALL OK 1 INCH HAIL
05/22/99 OSAGE
0530 PM VERA OK .88 INCH HAIL
05/22/99 WASHINGTON
0640 PM NATURAL DAM AR 1 INCH HAIL
05/22/99 CRAWFORD
0700 PM TULSA OK FLOOD
05/22/99 TULSA STREET FLOODING
0700 PM JENKS OK 1 INCH HAIL
05/22/99 TULSA
0715 PM BEGGS OK .88 INCH HAIL
05/22/99 OKMULGEE
0715 PM 3 N MOODYS OK .75 INCH HAIL
05/22/99 CHEROKEE
0730 PM 2 W BEGGS OK .75 INCH HAIL
05/22/99 OKMULGEE
0730 PM BOLEY OK .75 INCH HAIL
05/22/99 OKFUSKEELocal storm report, May 22, 10:42 PM CDT, 3 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1042 PM CDT SAT MAY 22 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0400 PM SILOAM SPGS AR .75 INCH HAIL
05/22/99 BENTON
0440 PM WESTVILLE OK .75 INCH HAIL
05/22/99 ADAIR
0530 PM 3 W MARAMEC OK 1 INCH HAIL
05/22/99 PAWNEE
0530 PM BARNSDALL OK 1 INCH HAIL
05/22/99 OSAGE
0530 PM VERA OK .88 INCH HAIL
05/22/99 WASHINGTON
0640 PM NATURAL DAM AR 1 INCH HAIL
05/22/99 CRAWFORD
0700 PM TULSA OK FLOOD
05/22/99 TULSA STREET FLOODING
0700 PM JENKS OK 1 INCH HAIL
05/22/99 TULSA
0715 PM BEGGS OK .88 INCH HAIL
05/22/99 OKMULGEE
0715 PM 3 N MOODYS OK .75 INCH HAIL
05/22/99 CHEROKEE
0730 PM 2 W BEGGS OK .75 INCH HAIL
05/22/99 OKMULGEE
0730 PM BOLEY OK .75 INCH HAIL
05/22/99 OKFUSKEEThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 7:13 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 47 min |
| May 22, 7:21 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 39 min |
| May 22, 7:36 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 39 min |
| May 22, 7:40 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 50 min |
| May 22, 7:49 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 41 min |
| May 22, 7:56 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee, Okmulgee | 49 min |
| May 22, 8:46 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 44 min |
| May 22, 9:23 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 52 min |
| May 23, 1:45 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 45 min |
| May 23, 1:45 AM CDT | Severe Thunderstorm Warning | TSA | Nowata, Rogers, Washington | 45 min |
| May 23, 1:45 AM CDT | Severe Thunderstorm Warning | TSA | Craig | 45 min |
| May 23, 1:58 AM CDT | Severe Thunderstorm Warning | TSA | Ottawa | 47 min |
| May 23, 2:30 AM CDT | Severe Thunderstorm Warning | TSA | Delaware, Mayes, Ottawa | 60 min |
| May 23, 2:30 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee, Tulsa | 60 min |
| May 23, 3:35 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee, Okmulgee | 55 min |
| May 23, 3:35 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Tulsa, Wagoner | 55 min |
| May 23, 3:58 AM CDT | Flash Flood Warning | TSA | Muskogee, Okmulgee, Wagoner | 2 hr |
| May 23, 3:58 AM CDT | Flash Flood Warning | TSA | Cherokee | 2 hr |
| May 23, 4:17 AM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 43 min |
Nearby
Severe 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.