Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 113, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 22, 1999, 5:55 PM CDT for Mayes County, Rogers County, Wagoner County, Oklahoma. It was in force for 50 min. 8 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 22, 1999, 5:55 PM CDT (22:55 UTC)
- Expired
- Apr 22, 1999, 6:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Mayes County, OK, Rogers County, OK, Wagoner County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 22, 5:55 PM CDT | Thunderstorm Wind 52 | Claremore, OK | A door was blown off of a house. Two downtown buildings in Claremore had their frontages damaged. One of these was the Chamber of Commerce which had two concrete veneer blocks from the roofline blown down. |
| Apr 22, 6:00 PM CDT | Hail 0.75 | Adair, OK | |
| Apr 22, 6:32 PM CDT | Hail 0.88 | Inola, OK | Location: Rogers/Mayes county line on US Hwy 412 |
| Apr 22, 6:32 PM CDT | Hail 0.88 | Chouteau, OK | Location: Rogers/Mayes county line on US Hwy 412 |
| Apr 22, 6:45 PM CDT | Hail 1.75 | Inola, OK | Location: Rogers/Wagoner County line |
| Apr 22, 6:45 PM CDT | Hail 1.75 | Neodesha, OK | Location: Rogers/Wagoner County line |
| Apr 22, 6:47 PM CDT | Tornado F1 | Inola, OK | An F1 tornado touched down in a rural area 4 miles southeast of Inola. This tornado moved east into Mayes County. The tornado reached its widest point of 200 yards in Rogers County. This tornado was responsible for tree damage. For more information on this |
| Apr 22, 6:50 PM CDT | Tornado F1 | Mazie, OK | This F1 tornado originally formed in extreme southeast Rogers County and then moved east into extreme southwest Mayes County before lifting 2.5 miles southwest of Mazie. This tornado produced tree damage in a mostly rural area. While the tornado reached its |
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 22, 4:00 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.9 hours before the alert went out and 166 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1444 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
999
WUUS54 KTSA 222259 RRA
SVRTUL
OKC097-131-145-222345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
555 PM CDT THU APR 22 1999
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR
MAYES COUNTY IN NORTHEAST OKLAHOMA
SOUTHERN ROGERS COUNTY IN NORTHEAST OKLAHOMA
NORTHERN WAGONER COUNTY IN NORTHEAST OKLAHOMA
* UNTIL 645 PM CDT
* AT 555 PM CDT SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 13 MILES NORTHWEST OF ADAIR TO 2 MILES WEST OF
CATOOSA TO 11 MILES WEST OF BROKEN ARROW...MOVING EAST AT 25 MPH.
* SOME LOCATIONS AFFECTED INCLUDE... PENSACOLA...ADAIR...CHOUTEAU...
PRYOR...BROKEN ARROW...TIAWAH...VERDIGRIS...CATOOSA...INOLA AND
CLAREMORE
HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE
EXPECTED IN THE WARNED AREA.
A TORNADO WATCH IS ALSO IN EFFECT. TORNADOES CAN DEVELOP SUDDENLY
FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS.
LAT...LON 3648 9540 3617 9584 3602 9597 3601 9544
3616 9527 3650 9503What 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 22, 3:50 PM CDT, 2 hours 5 minutes earlier.
Area forecast discussion, Apr 22, 3:50 PM CDT, 2 hours 5 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 350 PM CDT THU APR 22 1999 PROBLEM(S) OF THE DAY: WILL THERE BE SEVERE CONVECTION? WILL THE CONVECTION BE SCATTERED OR NUMEROUS? WHAT TYPE(S) OF SEVERE WEATHER WILL OCCUR? PARTIAL CLEARING AND RESULTANT INSOLATION HAS BEEN SUFFICIENT TO BREAK THE CAP IN AREAS TO THE NW OF TUL LATE THIS AFTERNOON. CONVECTION HAS GRADUALLY INCREASED ALONG THE COLD FRONT OVER SE KS WITH ACTIVITY SLOWLY BUILDING S ALONG FRONT INTO PARTS OF NE OK. FRONT PROGGD TO SAG S TONIGHT...EXTENDING FROM NW AR INTO NW TX BY 12Z FRI. WEAKENING CAP...FRONTAL CONVERGENCE AND UPPER DIVERGENCE FROM ENTRANCE REGION OF 110 KT H3 JET SHOULD ALLOW FOR AN INCREASE IN CONVECTION ALONG AND N OF FRONT OVERNIGHT. WILL PLACE HIGHEST POPS OVER FAR NE OK/NW AR. WITH UPPER FLOW NEARLY PARALLELING BOUNDARY...EXPECT FRONT TO BECOME NEARLY STATIONARY OVER ECNTRL OK BY FRI AFTERNOON. (PREFERRED THE FARTHER S PLACEMENT OF FRONT PER AVN/ETA). PERSISTENT SLY LLVL FLOW INTO BOUNDARY ALONG WITH DECENT MOISTURE POOLING NEAR FRONT (PWS AROUND 1.5) MAY ALLOW FOR A MCS TO FORM OVER NE OK BY LATE AFTERNOON/EARLY EVENING WITH ACTIVITY PEELING OFF TO THE ESE INTO NW AR OVERNIGHT. AREAS S OF THE FRONT SHOULD MAINTAIN DECENT CAP...SO CHCS WILL BE KEPT VERY LOW. HEAVY RAINFALL IS A DEFINENT POSSIBLITY OVER FAR NE OK/NW AR...BUT WILL HOLD OFF ON ANY FFA FOR NOW. FORECAST BECOMES A BIT MORE IFFY BY SAT. CONVECTIVE OUTFLOW SHOULD KEEP BOUNDARY NEAR STATIONARY ACRS ECNTRL OR SE OK...WITH A SLOW DRIFT TO THE N BY SAT NIGHT. WILL KEEP CHC POPS OVER MOST OF THE AREA...WITH LOWEST POPS OVER SRN ZONES. MRF/ECMWF IN DECENT AGREEMENT MAINTAINING SWLY FLOW OVER SRN PLAINS WITH SIGNIFICANT CHUNK OF ENERGY EJECTING INTO PLAINS LATE SUN INTO MON. WILL MAINTAIN CHCS OF SHRA/TSRA THROUGHOUT EXTENDED PERIOD. FCSTID = 18 TUL 60 70 58 65 / 30 40 40 40 FSM 63 80 62 73 / 10 20 30 30 MLC 64 80 63 72 / 10 20 30 30 BVO 58 68 56 63 / 30 40 40 40 FYV 59 76 59 68 / 40 40 50 40 IDB 64 84 64 80 / 5 20 20 20 BYV 59 76 59 68 / 40 40 50 40 MIO 58 70 57 65 / 40 40 50 40 MKO 60 73 60 68 / 30 40 40 40 F10 60 70 58 65 / 30 40 40 40 HHW 64 84 64 80 / 5 20 20 20 .... AR...NONE. OK...NONE. -------------------- EXPERIMENTAL OUTPUT: HAZARDOUS WEATHER EXPECTED NEXT 24 HOURS: CHANCE SEVERE THUNDERSTORMS NGM CONFIDENCE: 6 ON A SCALE OF 0 TO 10 ETA CONFIDENCE: 8 ON A SCALE OF 0 TO 10 AVN CONFIDENCE: 8 ON A SCALE OF 0 TO 10 FCST CONFIDENCE: 8 ON A SCALE OF 0 TO 10
In the hours before
Local storm report, Apr 22, 12:40 PM CDT, 5 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED 2ND REPORT
NATIONAL WEATHER SERVICE TULSA OK
1240 PM CDT THU APR 22 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0025 AM SAND SPGS OK 65 MPH TSTM GUST
04/22/99 OSAGE 65 MPH GUST ESTIMATED BY
NWS EMPLOYEE NEAR
GILCREASE MUSEUM
0110 AM BIG CABIN OK 60 MPH TSTM GUST
04/22/99 CRAIG
0115 AM PRYOR OK WIND DAMAGE
04/22/99 MAYES SEVERAL LIMBS DOWN UP TO 2
INCHES IN DIAMETER.
0120 AM ADAIR OK WIND DAMAGE
04/22/99 MAYES MINOR ROOF DAMAGE.
SHINGLES BLOWN OFF ROOF.Local storm report, Apr 22, 12:40 PM CDT, 5 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED 2ND REPORT
NATIONAL WEATHER SERVICE TULSA OK
1240 PM CDT THU APR 22 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0025 AM SAND SPGS OK 65 MPH TSTM GUST
04/22/99 OSAGE 65 MPH GUST ESTIMATED BY
NWS EMPLOYEE NEAR
GILCREASE MUSEUM
0110 AM BIG CABIN OK 60 MPH TSTM GUST
04/22/99 CRAIG
0115 AM PRYOR OK WIND DAMAGE
04/22/99 MAYES SEVERAL LIMBS DOWN UP TO 2
INCHES IN DIAMETER.
0120 AM ADAIR OK WIND DAMAGE
04/22/99 MAYES MINOR ROOF DAMAGE.
SHINGLES BLOWN OFF ROOF.Special weather statement, Apr 22, 1:00 PM CDT, 4 hours 55 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-231100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT THU APR 22 1999 A FEW SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND TONIGHT ACROSS PORTIONS OF NORTHEAST OKLAHOMA AND FAR NORTHWEST ARKANSAS. .SYNOPSIS... EARLY MORNING CONVECTION HAS CAUSED A LOW PRESSURE SYSTEM TO FORM OVER SOUTH CENTRAL KANSAS THIS MORNING. HOWEVER...THIS SYSTEM IS EXPECTED TO WEAKEN AS IT LIFTS NORTHEASTWARD ALONG A FRONTAL BOUNDARY WHICH EXTENDS FROM NORTHEAST KANSAS INTO THE TEXAS PANHANDLE. IN THE MEANTIME...A NEW LOW PRESSURE SYSTEM DEVELOPING OVER THE EASTERN TEXAS PANHANDLE WILL ALSO BEGIN A NORTHEASTWARD TREK ALONG THE SAME QUASI-STATIONARY BOUNDARY THIS AFTERNOON AND TONIGHT. THIS WILL DRAG A DRY LINE EXTENDING SOUTHWARD FROM THE LOW CLOSER TO EASTERN OKLAHOMA. .DISCUSSION... A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE NEAR THE FRONTAL BOUNDARY THROUGH TONIGHT. MOST OF THIS ACTIVITY WILL REMAIN NORTH AND WEST OF EASTERN OKLAHOMA THIS AFTERNOON. HOWEVER...AS THE SECOND LOW PRESSURE SYSTEM LIFTS INTO KANSAS THIS EVENING...THE FRONTAL BOUNDARY WILL MOVE SOUTHEASTWARD INTO NORTHEAST OKLAHOMA TONIGHT. THUNDERSTORM DEVELOPMENT WILL BE INHIBITED BY A CAPPING LAYER OF WARM AIR ALOFT OVER MOST OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON. HOWEVER...ISOLATED THUNDERSTORMS MAY DEVELOP IN OSAGE AND PAWNEE COUNTIES WHERE THE CAP IS SLIGHTLY WEAKER. AS THE FRONTAL BOUNDARY MOVES INTO NORTHEAST OKLAHOMA TONIGHT...THE WEAKENING CAP MAY ALLOW A FEW SEVERE THUNDERSTORMS TO DEVELOP NORTHWEST OF INTERSTATE 44 THIS EVENING. THE STORMS MAY MOVE ACROSS THE REST OF EASTERN OKLAHOMA LATE TONIGHT AND INTO FAR NORTHWEST ARKANSAS TOWARDS MORNING. FAVORABLE WIND PROFILES EXIST AGAIN THIS AFTERNOON AND TONIGHT FOR THE FORMATION OF LARGE HAIL AND WITH MODERATE INSTABILITY ACROSS THE AREA. DAMAGING WIND GUSTS AND AN ISOLATED TORNADO WILL ALSO BE POSSIBLE. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION MAY BE REQUIRED IN THE OUTLOOK AREA LATER THIS EVENING MAINLY IN LOCATIONS NORTHWEST OF INTERSTATE 44. AFTER MIDNIGHT...SPOTTER ACTIVATION MAY BE NEEDED IN LOCATIONS NORTH OF HIGHWAY 412.
Special weather statement, Apr 22, 1:00 PM CDT, 4 hours 55 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-231100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT THU APR 22 1999 A FEW SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND TONIGHT ACROSS PORTIONS OF NORTHEAST OKLAHOMA AND FAR NORTHWEST ARKANSAS. .SYNOPSIS... EARLY MORNING CONVECTION HAS CAUSED A LOW PRESSURE SYSTEM TO FORM OVER SOUTH CENTRAL KANSAS THIS MORNING. HOWEVER...THIS SYSTEM IS EXPECTED TO WEAKEN AS IT LIFTS NORTHEASTWARD ALONG A FRONTAL BOUNDARY WHICH EXTENDS FROM NORTHEAST KANSAS INTO THE TEXAS PANHANDLE. IN THE MEANTIME...A NEW LOW PRESSURE SYSTEM DEVELOPING OVER THE EASTERN TEXAS PANHANDLE WILL ALSO BEGIN A NORTHEASTWARD TREK ALONG THE SAME QUASI-STATIONARY BOUNDARY THIS AFTERNOON AND TONIGHT. THIS WILL DRAG A DRY LINE EXTENDING SOUTHWARD FROM THE LOW CLOSER TO EASTERN OKLAHOMA. .DISCUSSION... A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE NEAR THE FRONTAL BOUNDARY THROUGH TONIGHT. MOST OF THIS ACTIVITY WILL REMAIN NORTH AND WEST OF EASTERN OKLAHOMA THIS AFTERNOON. HOWEVER...AS THE SECOND LOW PRESSURE SYSTEM LIFTS INTO KANSAS THIS EVENING...THE FRONTAL BOUNDARY WILL MOVE SOUTHEASTWARD INTO NORTHEAST OKLAHOMA TONIGHT. THUNDERSTORM DEVELOPMENT WILL BE INHIBITED BY A CAPPING LAYER OF WARM AIR ALOFT OVER MOST OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON. HOWEVER...ISOLATED THUNDERSTORMS MAY DEVELOP IN OSAGE AND PAWNEE COUNTIES WHERE THE CAP IS SLIGHTLY WEAKER. AS THE FRONTAL BOUNDARY MOVES INTO NORTHEAST OKLAHOMA TONIGHT...THE WEAKENING CAP MAY ALLOW A FEW SEVERE THUNDERSTORMS TO DEVELOP NORTHWEST OF INTERSTATE 44 THIS EVENING. THE STORMS MAY MOVE ACROSS THE REST OF EASTERN OKLAHOMA LATE TONIGHT AND INTO FAR NORTHWEST ARKANSAS TOWARDS MORNING. FAVORABLE WIND PROFILES EXIST AGAIN THIS AFTERNOON AND TONIGHT FOR THE FORMATION OF LARGE HAIL AND WITH MODERATE INSTABILITY ACROSS THE AREA. DAMAGING WIND GUSTS AND AN ISOLATED TORNADO WILL ALSO BE POSSIBLE. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION MAY BE REQUIRED IN THE OUTLOOK AREA LATER THIS EVENING MAINLY IN LOCATIONS NORTHWEST OF INTERSTATE 44. AFTER MIDNIGHT...SPOTTER ACTIVATION MAY BE NEEDED IN LOCATIONS NORTH OF HIGHWAY 412.
Local storm report, Apr 22, 4:30 PM CDT, 1 hour 25 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 NOWATAThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 10:11 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 64 min |
| Apr 21, 10:44 PM CDT | Tornado Warning | TSA | Pawnee | 31 min |
| Apr 21, 10:54 PM CDT | Tornado Warning | TSA | Osage | 36 min |
| Apr 21, 11:29 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 46 min |
| Apr 21, 11:46 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 44 min |
| Apr 22, 12:07 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Tulsa | 53 min |
| Apr 22, 12:30 AM CDT | Severe Thunderstorm Warning | TSA | Nowata, Rogers, Washington | 45 min |
| Apr 22, 1:03 AM CDT | Severe Thunderstorm Warning | TSA | Craig, Mayes | 42 min |
| Apr 22, 1:22 AM CDT | Severe Thunderstorm Warning | TSA | Delaware, Ottawa | 38 min |
| Apr 22, 3:07 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Washington | 38 min |
| Apr 22, 3:39 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 36 min |
| Apr 22, 3:55 PM CDT | Tornado Warning | TSA | Nowata, Washington | 35 min |
| Apr 22, 4:25 PM CDT | Tornado Warning | TSA | Craig | 35 min |
| Apr 22, 4:52 PM CDT | Severe Thunderstorm Warning | TSA | Nowata | 38 min |
| Apr 22, 5:01 PM CDT | Tornado Warning | TSA | Craig | 29 min |
| Apr 22, 5:14 PM CDT | Tornado Warning | TSA | Delaware, Ottawa | 46 min |
| Apr 22, 5:27 PM CDT | Tornado Warning | TSA | Craig | 33 min |
| Apr 22, 5:28 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Tulsa | 47 min |
| Apr 22, 5:37 PM CDT | Severe Thunderstorm Warning | TSA | Rogers | 53 min |
| Apr 22, 6:00 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware | 45 min |
| Apr 22, 6:33 PM CDT | Tornado Warning | TSA | Mayes, Rogers, Wagoner | 42 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.