Alert archive / Arkansas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 22, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 1, 2007, 4:50 AM CST for Franklin County, Arkansas. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 1, 2007, 4:50 AM CST (10:50 UTC)
- Expired
- Mar 1, 2007, 5:26 AM CST
- In force
- 36 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
County Franklin County, AR
The radar
The Western Arkansas radar (KSRX), 43 km from the middle of the area, began a volume at 10:49 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 1, 1:32 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 10.8 hours before the alert went out and 167 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
- 283 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1189 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 011051 SVRTSA ARC047-011145- /O.NEW.KTSA.SV.W.0022.070301T1050Z-070301T1145Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 450 AM CST THU MAR 1 2007 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... FRANKLIN COUNTY IN WEST CENTRAL ARKANSAS * UNTIL 545 AM CST * AT 445 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL AND WINDS TO 60 MPH. THIS STORM WAS LOCATED NEAR BRANCH...MOVING NORTHEAST AT 50 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...OZARK... DENNING...ALTUS AND WIEDERKEHR VILLAGE. A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH OF THIS STORM...BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. LAT...LON 3539 9409 3524 9396 3539 9371 3561 9371 $$
2 follow-up statements
000 WWUS54 KTSA 011100 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 500 AM CST THU MAR 1 2007 ARC047-011145- /O.CON.KTSA.SV.W.0022.000000T0000Z-070301T1145Z/ FRANKLIN AR- 500 AM CST THU MAR 1 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM CST FOR FRANKLIN COUNTY... AT 458 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL AND WINDS TO 60 MPH. THIS STORM WAS LOCATED NEAR PETER PENDER... MOVING NORTHEAST AT 50 MPH. SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MEG...OZARK... DENNING...ALTUS...ALIX AND WIEDERKEHR VILLAGE. A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO ACT QUICKLY. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. LAT...LON 3534 9402 3524 9396 3539 9371 3561 9371 $$
000 WWUS54 KTSA 011126 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 526 AM CST THU MAR 1 2007 ARC047-011136- /O.CAN.KTSA.SV.W.0022.000000T0000Z-070301T1145Z/ FRANKLIN AR- 526 AM CST THU MAR 1 2007 ...THE SEVERE THUNDERSTORM WARNING FOR FRANKLIN COUNTY IS CANCELLED... THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA...THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM. LAT...LON 3534 9402 3524 9396 3539 9371 3561 9371 $$
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 Mar 1, 4:24 AM CST, 26 minutes earlier.
Area forecast discussion, Mar 1, 4:24 AM CST, 26 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 424 AM CST THU MAR 1 2007 .MESOSCALE UPDATE... A SERIES OF SUPERCELLS ARE MOVING ACROSS NORTHWEST ARKANSAS. WHILE NOT HIGHLY ORGANIZED...THESE CELLS HAVE BEEN INCREASING. THE SUPERCELL IN CARROLL COUNTIES APPEARS THE BEST ORGANIZED AT THE MOMENT...BUT ALL OF THE CELLS AHEAD OF THE COLD FRONT WILL NEED TO BE MONITORED CLOSELY. A LINE OF STORMS IS MOVING INTO NORTHWEST ARKANSAS. THESE STORMS WERE ALONG A COLD FRONT THAT CONTINUES TO ADVANCE ACROSS THE FORECAST AREA. BETWEEN 6 AND 7AM THE FRONT WILL BE EXITING CARROLL... MADISON...FRANKLIN AND SEBASTIAN COUNTIES AND WILL HAVE PREVIOUSLY CLEARED OUR SOUTHEAST OKLAHOMA COUNTIES. && .TSA WATCHES/WARNINGS/ADVISORIES... OK...NONE. AR...NONE. && SHORT TERM...08 LONG TERM....99
Hazardous weather outlook, Mar 1, 4:42 AM CST, 8 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 442 AM CST THU MAR 1 2007 ARZ001-002-010-011-019-020-029-OKZ049-053>076-021100- ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK- CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK- LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK- OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK- PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK- WASHINGTON OK-WASHINGTON AR- 441 AM CST THU MAR 1 2007 ...SEVERE WEATHER ENDING EARLY THIS MORNING... THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...TODAY AND TONIGHT. TORNADO. RISK...LIMITED. AREA...NORTHWEST ARKANSAS. ONSET...ONGOING. SEVERE THUNDERSTORM. RISK...LIMITED. AREA...NORTHWEST ARKANSAS. ONSET...ONGOING. SIGNIFICANT WINDS - NON THUNDERSTORM. RISK...LIMITED. AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. ONSET...ONGOING. FIRE WEATHER DANGER. RISK...ELEVATED...SPREADINDEX=47. AREA...NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS. ONSET...LATE THIS MORNING. AREA AT GREATEST RISK...NORTHEAST OKLAHOMA. DISCUSSION... STRONG TO SEVERE THUNDERSTORMS WILL BE EXITING NORTHWEST ARKANSAS EARLY THIS MORNING AS A COLD FRONT PUSHES EAST OF THE REGION. WEST TO NORTHWEST WINDS WILL GUST TO AROUND 3O MPH TODAY RESULTING IN AN INCREASED FIRE DANGER ACROSS THE REGION AS DRY AIR ALSO FILTERS INTO THE REGION IN THE WAKE OF THE DEPARTING STORM SYSTEM. THE FIRE DANGER WILL IMPROVE THIS EVENING AS THE WINDS DIMINISH AND THE RELATIVE HUMIDITIES INCREASE. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED EARLY THIS MORNING ACROSS NORTHWEST ARKANSAS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. FRIDAY...VERY HIGH FIRE WEATHER POTENTIAL...HIGH WIND POTENTIAL. SATURDAY...HIGH WIND POTENTIAL. SUNDAY...NO HAZARDS. MONDAY...NO HAZARDS. TUESDAY...NO HAZARDS. WEDNESDAY...NO HAZARDS. EXTENDED DISCUSSION... WESTERLY WINDS OF AROUND 20 MPH WILL PREVAIL THROUGH THE DAY ON FRIDAY RESULTING IN A VERY HIGH FIRE DANGER AS AFTERNOON RELATIVE HUMIDITY VALUES DROP TO AROUND 30 PERCENT. WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL TABULAR AND GRAPHICAL INFORMATION.
In the hours before
Local storm report, Mar 1, 4:08 AM CST, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
408 AM CST THU MAR 01 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0407 AM HAIL EXCELSIOR 35.20N 94.31W
03/01/2007 E0.88 INCH SEBASTIAN AR EMERGENCY MNGR
&&
NMKLocal storm report, Mar 1, 4:11 AM CST, 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
411 AM CST THU MAR 01 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0411 AM HAIL GREENWOOD 35.22N 94.26W
03/01/2007 E0.88 INCH SEBASTIAN AR EMERGENCY MNGR
&&
NMKLocal storm report, Mar 1, 4:18 AM CST, 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
418 AM CST THU MAR 01 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0417 AM HAIL 3 NE MULBERRY 35.53N 94.01W
03/01/2007 E0.88 INCH FRANKLIN AR EMERGENCY MNGR
&&
NMKLocal storm report, Mar 1, 4:25 AM CST, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
425 AM CST THU MAR 01 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0424 AM HAIL BELLA VISTA 36.43N 94.23W
03/01/2007 E0.88 INCH BENTON AR EMERGENCY MNGR
&&
SFPLocal storm report, Mar 1, 4:26 AM CST, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
426 AM CST THU MAR 01 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0426 AM HAIL 10 N OZARK 35.63N 93.83W
03/01/2007 E0.75 INCH FRANKLIN AR AMATEUR RADIO
&&
NMKLocal storm report, Mar 1, 4:27 AM CST, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
427 AM CST THU MAR 01 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0426 AM HAIL 10 N OZARK 35.63N 93.83W
03/01/2007 E0.75 INCH FRANKLIN AR EMERGENCY MNGR
&&
SFPThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 2:30 AM CST | Severe Thunderstorm Warning | TSA | Benton | 41 min |
| Mar 1, 3:00 AM CST | Severe Thunderstorm Warning | TSA | Washington | 45 min |
| Mar 1, 3:27 AM CST | Tornado Warning | TSA | Crawford, Sebastian | 48 min |
| Mar 1, 3:40 AM CST | Severe Thunderstorm Warning | TSA | Benton | 80 min |
| Mar 1, 3:47 AM CST | Tornado Warning | TSA | Franklin | 58 min |
| Mar 1, 4:03 AM CST | Severe Thunderstorm Warning | TSA | Carroll, Madison | 57 min |
| Mar 1, 4:08 AM CST | Severe Thunderstorm Warning | TSA | Sebastian | 24 min |
| Mar 1, 4:13 AM CST | Tornado Warning | TSA | Carroll | 28 min |
| Mar 1, 4:44 AM CST | Severe Thunderstorm Warning | TSA | Washington | 21 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2007Every severe thunderstorm warning in 2007
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.