Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 42, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 12, 2001, 12:29 AM CST for Cherokee County, Delaware County, Oklahoma. It was in force for 61 min. 1 report 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
- Mar 12, 2001, 12:29 AM CST (06:29 UTC)
- Expired
- Mar 12, 2001, 1:30 AM CST
- In force
- 61 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Cherokee County, OK, Delaware County, OK
The radar
The Tulsa radar (KINX), 60 km from the middle of the area, began a volume at 06:29 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 12, 12:45 AM CST | Hail 0.88 | Hulbert, 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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.5 hours before the alert went out and 128 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
- 1830 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KTSA 120630
SVRTUL
OKC021-041-120730-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1229 AM CST MON MAR 12 2001
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR
CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA
SOUTHERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA
* UNTIL 130 AM CST
* AT 1229 AM CST SEVERE THUNDERSTORMS CAPABLE OF PRODUCING WINDS
UP TO 60 MPH WERE LOCATED ALONG A LINE EXTENDING FROM 4 MILES
WEST OF SALINA TO 4 MILES SOUTH OF MURPHY TO 5 MILES NORTH OF
MUSKOGEE...MOVING EAST AT 60 MPH.
* SOME LOCATIONS AFFECTED INCLUDE... SCRAPER...PEGGS...ELDON...
HULBERT...COOKSON...TAHLEQUAH...COLCORD...KANSAS...TWIN OAKS...
LEACH AND OAKS.
$$
LAT...LON 3619 9503 3599 9524 3583 9526 3582 9514
3565 9512 3565 9480 3618 9478 3618 9458
3641 9461 3638 9500What 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 Mar 11, 9:22 PM CST, 3 hours 7 minutes earlier.
Area forecast discussion, Mar 11, 9:22 PM CST, 3 hours 7 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 922 PM CST SUN MAR 11 2001 APPEARS TO BE A BREAK IN THE RAIN OVER MUCH OF THE AREA AT THIS TIME. EVEN SO...HIGH POPS IN CURRENT FORECAST SEEM WARRANTED AS A LINE OF SHOWERS AND THUNDERSTORMS IS HEADED INTO CENTRAL OKLAHOMA. COULD BE SOME STRONG STORMS ACROSS THE AREA BUT BELIEVE THE BEST CHANCE FOR SEVERE STORMS WILL BE TO THE WEST AND SOUTH OF THE FORECAST AREA. TEMPS IN FORECAST AREA SHOULD NOT CHANGE MUCH TONIGHT GIVEN THE CLOUDS...SOUTH WINDS AND DEW POINTS IN THE UPPER 40S TO MID 50S. CURRENT FORECAST HAS THINGS WELL IN HAND AND WILL NOT UPDATE AT THIS TIME. .TSA... AR...NONE. OK...NONE. ABBAS
In the hours before
Local storm report, Mar 11, 11:30 PM CST, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1130 PM CST SUN MAR 11 2001
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1118 PM HOMINY OK 60 MPH TSTM GUST
03/11/01 OSAGE 60 MPH WIND GUSTS
REPORTED BY SPOTTER
WITH DEBRIS IN AREA.
1124 PM BRISTOW OK 1 INCH HAIL
03/11/01 CREEK EMERGENCY MANAGEMENT
REPORT OF QUARTER SIZED
HAIL IN BRISTOW.
MANNINGLocal storm report, Mar 11, 11:31 PM CST, 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1131 PM CST SUN MAR 11 2001
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1118 PM SAND SPGS OK 60 MPH TSTM GUST
03/11/01 TULSA SPOTTER REPORT OF 60
MPH WINDS IN SAND
SPRINGS.
D
MANNINGLocal storm report, Mar 11, 11:49 PM CST, 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1149 PM CST SUN MAR 11 2001
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1145 PM 3 W BIXBY OK 70 MPH TSTM GUST
03/11/01 TULSA AT LEAST 60 TO 70 MPH
WINDS REPORTED BY OFF
DUTY NWS EMPLOYEELocal storm report, Mar 11, 11:51 PM CST, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1151 PM CST SUN MAR 11 2001
TIME(CST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1145 PM 3 W BIXBY OK 70 MPH TSTM GUST
03/11/01 TULSA AT LEAST 60 TO 70 MPH
WINDS REPORTED BY OFF
DUTY NWS EMPLOYEE
MANNINGThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 11:22 PM CST | Severe Thunderstorm Warning | TSA | Creek, Okfuskee, Okmulgee, Osage, Tulsa | 53 min |
| Mar 11, 11:22 PM CST | Severe Thunderstorm Warning | TSA | Rogers, Wagoner, Washington | 53 min |
| Mar 11, 11:59 PM CST | Severe Thunderstorm Warning | TSA | Mayes, Muskogee, Rogers, Wagoner | 61 min |
| Mar 11, 11:59 PM CST | Severe Thunderstorm Warning | TSA | Craig, Nowata | 61 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.