Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 202, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 27, 2001, 7:47 PM CDT for McIntosh County, Okfuskee County, Okmulgee County, Oklahoma. It was in force for 58 min. No storm report in the archive falls 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.
The facts
- Issued
- May 27, 2001, 7:47 PM CDT (00:47 UTC)
- Expired
- May 27, 2001, 8:45 PM CDT
- In force
- 58 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties McIntosh County, OK, Okfuskee County, OK, Okmulgee County, OK
The radar
The Tulsa radar (KINX), 84 km from the middle of the area, began a volume at 00:50 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
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 27, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.8 hours before the alert went out and 126 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
- 2894 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1394 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 280049 SVRTUL OKC091-107-111-280145- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 747 PM CDT SUN MAY 27 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA SOUTHERN OKMULGEE COUNTY IN NORTHEAST OKLAHOMA MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 845 PM CDT * AT 747 PM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 5 MILES NORTHWEST OF PHAROAH TO 8 MILES SOUTH OF HENRYETTA...MOVING SOUTHEAST AT 20 MPH. * SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...STIDHAM... VIVIAN...RAIFORD...HANNA...EUFAULA...SCHULTER...GRAYSON... HOFFMAN...DEWAR...HENRYETTA...PHAROAH...CLEARVIEW AND WELEETKA. HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. LAT...LON 3563 9647 3554 9596 3534 9534 3514 95j97
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 27, 3:55 PM CDT, 3 hours 52 minutes earlier.
Area forecast discussion, May 27, 3:55 PM CDT, 3 hours 52 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 355 PM CDT SUN MAY 27 2001 STRONG/SEVERE THUNDERSTORMS ONGOING AT THIS TIME ACROSS SOUTHEAST KS AND NORTHEAST OK NEAR THE KS BORDER. AMS VERY UNSTABLE ACROSS THE AREA...AND ACTIVITY EXPECTED TO CONTINUE TO SPREAD SLOWLY TO THE SE AND SSE INTO THE EARLY EVENING HOURS. STORMS EXPECTED TO THEN WEAKEN WITH FOCUS TURNING TOWARD ADDITIONAL COMPLEX OF STORMS NOW DEVELOPING OVER WESTERN KS. OVERNIGHT MCS EXPECTED TO DROP FROM WESTERN KS DOWN ACROSS OK AFFECTING MAINLY SOUTHERN PARTS OF THE AREA LATE TONIGHT INTO MONDAY MORNING. STILL UNSURE HOW ANY OUTFLOWS OR LINGERING BOUNDARIES FROM CURRENT CONVECTION WILL AFFECT STORMS LATER ON. WILL GENERALLY GO WITH LIKELY POPS OVER THE ENTIRE AREA FOR THE TONIGHT PERIOD...AND MENTION POSSIBILITY OF SEVERE ALL AREAS. NORTHEAST OK AND NORTHWEST AR FOR CURRENT ACTIVITY...AND SOUTHEAST OK FOR LATE NIGHT STORMS. WILL CONTINUE TO SEE NORTHWESTERLY FLOW PATTERN THROUGH MUCH OF THE UPCOMING WEEK...SO ADDITONAL WEAK IMPULSES WILL KEEP CHANCE POPS IN THE FORECAST THROUGH FRIDAY. WILL CUT DAYTIME TEMPS SOME FOR TOMORROW DUE TO EXPECTED CLOUD COVER FROM PASSING MCS...THEN LITTLE DAY TO DAY CHANGE IN TEMPS FOR MUCH OF THE REST OF THE WEEK. FCSTID = 4 TUL 64 78 62 82 / 70 30 30 30 FSM 64 78 62 83 / 60 40 30 30 MLC 64 78 62 83 / 60 40 30 30 BVO 60 78 58 80 / 70 30 30 30 FYV 60 75 56 78 / 70 30 30 30 BYV 60 75 56 78 / 60 30 30 30 MIO 61 77 58 79 / 70 30 30 30 MKO 64 78 62 82 / 70 40 30 30 F10 64 78 62 82 / 70 40 30 30 HHW 63 80 63 83 / 60 50 30 30 .TSA... AR...SEVERE THUNDERSTORM WATCH UNTIL 700 PM CDT SUNDAY FOR ZONES ARZ001...ARZ010. OK...SEVERE THUNDERSTORM WATCH UNTIL 700 PM CDT SUNDAY FOR ZONES OKZ054>064...OKZ067>069.
In the hours before
Local storm report, May 27, 3:58 PM CDT, 3 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
358 PM CDT SUN MAY 27 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
031z4 PM FORAKER OK .88 INCH HAIL
05/27/01 OSAGE REPORTED BY PUBLICLocal storm report, May 27, 4:00 PM CDT, 3 hours 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
400 PM CDT SUN MAY 27 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
035*0 PM 4 W PAWHUSKA OK 60 MPH TSTM GUST
05/27/01 OSAGE REPORTED BY SPOTTERThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 7:03 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore | 57 min |
| May 27, 7:30 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 45 min |
| May 27, 8:00 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore | 60 min |
| May 27, 8:10 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 50 min |
| May 27, 8:10 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 50 min |
| May 27, 8:43 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 32 min |
| May 27, 8:53 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 52 min |
| May 27, 8:54 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 66 min |
| May 27, 8:58 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 47 min |
| May 27, 9:33 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 42 min |
| May 27, 9:41 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 19 min |
| May 27, 9:43 PM CDT | Severe Thunderstorm Warning | TSA | Haskell | 47 min |
| May 27, 10:00 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 45 min |
| May 27, 10:02 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 43 min |
| May 27, 10:25 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 50 min |
| May 27, 11:20 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Pittsburg | 55 min |
| May 28, 12:11 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, McIntosh, Pittsburg, Pushmataha | 64 min |
| May 28, 12:35 AM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 40 min |
| May 28, 1:14 AM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 61 min |
| May 28, 2:04 AM CDT | Flash Flood Warning | TSA | LeFlore | 3 hr |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.