Alert archive / Arkansas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 239, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Oct 17, 2007, 11:44 PM CDT for Faulkner County, Pulaski County, Arkansas. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 17, 2007, 11:44 PM CDT (04:44 UTC)
- Expired
- Oct 18, 2007, 12:15 AM CDT
- In force
- 31 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Faulkner County, AR, Pulaski County, AR
The radar
The Little Rock radar (KLZK), 15 km from the middle of the area, began a volume at 04:45 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 |
|---|---|---|---|
| Oct 17, 4:31 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 17, 11:38 PM CDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 4.7 hours before the alert went out and 217 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
- 18 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 1339 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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 Little Rock, AR wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 17, 9:03 PM CDT, 2 hours 41 minutes earlier.
Area forecast discussion, Oct 17, 9:03 PM CDT, 2 hours 41 minutes before
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</html>Hazardous weather outlook, Oct 17, 3:25 PM CDT, 8 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE LITTLE ROCK AR 325 PM CDT WED OCT 17 2007 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-181000- ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND- CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING- INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE- MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE- PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE- WOODRUFF-YELL- 325 PM CDT WED OCT 17 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...REST OF TODAY AND TONIGHT SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND TONIGHT OVER MUCH OF ARKANSAS. THE STORM PREDICTION CENTER HAS ISSUED A MODERATE RISK OF SEVERE THUNDERSTORMS FOR A LARGE PORTION OF THE STATE THROUGH TONIGHT. STRONG LOW PRESSURE AT THE SURFACE AND ALOFT...COMBINED WITH INCREASING MOISTURE AND INSTABILITY TODAY AND TONIGHT...WILL ALLOW FOR SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS OVER MUCH OF THE REGION. CONDITIONS ARE EXPECTED TO BECOME FAVORABLE FOR THE DEVELOPMENT OF STRONG TO SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT. THE PRIMARY THREAT WITH ANY SEVERE THUNDERSTORMS WILL BE DAMAGING WINDS AND LARGE HAIL. HOWEVER...WINDS ARE CHANGING IN DIRECTION AND INCREASING IN SPEED WITH HEIGHT...WHICH INDICATES THE POSSIBILITY OF TORNADOES AS WELL. THIS WOULD BE MOST LIKELY IN AREAS WITH A MODERATE RISK OF SEVERE STORMS. ABUNDANT MOISTURE IN THE ATMOSPHERE WILL ALSO ALLOW FOR THE POSSIBILITY OF LOCALLY HEAVY RAINFALL...PARTICULARLY WHERE STORMS FORM AND MOVE OVER THE SAME AREAS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ON THURSDAY...THE STORM SYSTEM WILL MOVE NORTHEAST TO THE GREAT LAKES REGION...AND PUSH A COLD FRONT THROUGH ARKANSAS. SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS ARKANSAS UNTIL THE FRONT PUSHES OUT OF THE STATE. BEHIND THE FRONT...CONDITIONS WILL BECOME BREEZY. A LAKE WIND ADVISORY MAY BE NECESSARY ON THURSDAY...AS WINDS COULD APPROACH 15 TO 25 MPH. HIGH PRESSURE WILL BUILD IN BEHIND THE FRONT LATER THURSDAY AND WILL BE THE MAIN WEATHER FEATURE FOR FRIDAY AND INTO THE WEEKEND. THE NEXT COLD FRONT THAT WILL BRING A CHANCE OF SHOWERS AND THUNDERSTORMS LOOKS TO AFFECT THE AREA AROUND SUNDAY NIGHT OR MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY AND TONIGHT. KEEP INFORMED BY MONITORING THE LATEST WEATHER INFORMATION FROM THE NATIONAL WEATHER SERVICE...AND BE PREPARED TO TAKE ACTION IF A WATCH OR WARNING IS ISSUED FOR YOUR AREA. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 38
In the hours before
Local storm report, Oct 17, 8:41 PM CDT, 3 hours 3 minutes before
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</html>Local storm report, Oct 17, 8:56 PM CDT, 2 hours 48 minutes before
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</html>Local storm report, Oct 17, 8:59 PM CDT, 2 hours 45 minutes before
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</html>Local storm report, Oct 17, 9:04 PM CDT, 2 hours 40 minutes before
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</html>Local storm report, Oct 17, 10:43 PM CDT, 1 hour 1 minute before
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</html>Local storm report, Oct 17, 11:31 PM CDT, 13 minutes before
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</html>The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 17, 7:22 PM CDT | Tornado Warning | LZK | White, Woodruff | 38 min |
| Oct 17, 8:19 PM CDT | Severe Thunderstorm Warning | LZK | Monroe | 41 min |
| Oct 17, 9:20 PM CDT | Severe Thunderstorm Warning | LZK | Sharp | 25 min |
| Oct 17, 9:48 PM CDT | Severe Thunderstorm Warning | LZK | Sharp | 12 min |
| Oct 17, 10:02 PM CDT | Severe Thunderstorm Warning | LZK | Montgomery, Pike | 43 min |
| Oct 17, 10:16 PM CDT | Severe Thunderstorm Warning | LZK | Baxter, Marion | 29 min |
| Oct 17, 10:35 PM CDT | Severe Thunderstorm Warning | LZK | Garland | 40 min |
| Oct 17, 10:47 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Hot Spring, Pike | 43 min |
| Oct 17, 11:07 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas, Grant, Hot Spring | 38 min |
| Oct 17, 11:15 PM CDT | Severe Thunderstorm Warning | LZK | Saline | 30 min |
| Oct 17, 11:20 PM CDT | Severe Thunderstorm Warning | LZK | Johnson, Newton | 55 min |
| Oct 17, 11:34 PM CDT | Severe Thunderstorm Warning | LZK | Clark, Hot Spring | 26 min |
| Oct 17, 11:50 PM CDT | Severe Thunderstorm Warning | LZK | Grant | 25 min |
| Oct 18, 12:10 AM CDT | Severe Thunderstorm Warning | LZK | Baxter, Marion, Newton, Searcy, Stone | 50 min |
| Oct 18, 12:13 AM CDT | Severe Thunderstorm Warning | LZK | Jefferson, Lonoke, Pulaski | 32 min |
| Oct 18, 12:29 AM CDT | Severe Thunderstorm Warning | LZK | Grant | 46 min |
| Oct 18, 12:46 AM CDT | Severe Thunderstorm Warning | LZK | Jefferson | 29 min |
| Oct 18, 1:14 AM CDT | Severe Thunderstorm Warning | LZK | Fulton | 31 min |
| Oct 18, 1:17 AM CDT | Severe Thunderstorm Warning | LZK | Monroe, Prairie, Woodruff | 28 min |
| Oct 18, 4:15 AM CDT | Lake Wind Advisory | LZK | Arkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more | 14 hr |
| Oct 18, 10:56 AM CDT | River Flood Warning | LZK | Jackson, Woodruff | 17 days |
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.