Alert archive / Arkansas / Flash Flood Warnings in 2007
Flash Flood Warning 74, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Jul 20, 2007, 8:52 PM CDT for Calhoun County, Arkansas. It was in force for 113 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
- Jul 20, 2007, 8:52 PM CDT (01:52 UTC)
- Expired
- Jul 20, 2007, 10:45 PM CDT
- In force
- 113 min
- Issued by
- NWS Little Rock, AR
- Area
- Whole counties
County Calhoun County, AR
The radar
The Little Rock radar (KLZK), 144 km from the middle of the area, began a volume at 01:52 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 nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 1.9 hours before the alert went out and 265 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
- 1819 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1182 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Jul 20, 6:39 PM CDT, 2 hours 13 minutes earlier.
Area forecast discussion, Jul 20, 6:39 PM CDT, 2 hours 13 minutes before
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</html>Hazardous weather outlook, Jul 20, 5:00 AM CDT, 15 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LITTLE ROCK AR 500 AM CDT FRI JUL 20 2007 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-211000- 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- 500 AM CDT FRI JUL 20 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT A COLD FRONT WILL MOVE INTO NORTHERN ARKANSAS TODAY...AND PASS THROUGH THE STATE DURING THE REMAINDER OF THE DAY AND INTO THE NIGHT. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED AS THIS FRONT MOVES THROUGH. ISOLATED STORMS MAY BECOME STRONG TO SEVERE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. THE FRONT WILL BE SLOW TO MOVE OUT OF THE AREA AND SCATTERED SHOWERS AND THUNDERSTORMS MAY LINGER OVER THE SOUTH AND WEST ON SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 38
In the hours before
Special weather statement, Jul 20, 3:19 PM CDT, 5 hours 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 319 PM CDT FRI JUL 20 2007 ARZ021-202105- JOHNSON- 319 PM CDT FRI JUL 20 2007 ...SIGNIFICANT WEATHER ALERT FOR JOHNSON COUNTY UNTIL 400 PM CDT... AT 315 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING AN AREA OF STRONG THUNDERSTORMS...NEAR LUDWIG LAKE...MOVING SOUTH AT 20 MPH. THE STORMS ARE CAPABLE OF PRODUCING WIND GUSTS TO 40 MPH...SMALL HAIL...DANGEROUS LIGHTNING...AND VERY HEAVY RAIN. THE HEAVY RAIN MAY CAUSE MINOR FLOODING OF LOW LYING AREAS AND PONDING OF WATER ON ROADWAYS. PEOPLE IN JOHNSON COUNTY...INCLUDING LAMAR...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. 59
Local storm report, Jul 20, 6:46 PM CDT, 2 hours 6 minutes before
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</html>Nearby
Flash Flood Warnings in Arkansas, 2007Every flash flood 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.