Alert archive / Mississippi / Flash Flood Warnings in 2008
Flash Flood Warning 108, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Jun 12, 2008, 3:45 PM CDT for Calhoun County, Mississippi. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 12, 2008, 3:45 PM CDT (20:45 UTC)
- Expired
- Jun 12, 2008, 5:45 PM CDT
- In force
- 2 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
County Calhoun County, MS
The radar
The Columbus AFB radar (KGWX), 93 km from the middle of the area, began a volume at 20:45 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 nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 8.8 hours before the alert went out and 251 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
- 1105 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 764 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- -35 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 Memphis, TN wrote its last area forecast discussion before this flash flood warning went out at Jun 12, 12:01 PM CDT, 3 hours 44 minutes earlier.
Area forecast discussion, Jun 12, 12:01 PM CDT, 3 hours 44 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE MEMPHIS TN 1201 PM CDT THU JUN 12 2008 .UPDATE... UPDATED TO EXPAND THE MENTION OF ISOLATED TO SCATTERED THUNDERSTORMS ACROSS ALL OF WEST TN...NORTH MS INTO PART OF EAST- CENTRAL AR BASED ON CURRENT RADAR TRENDS. A FEW STORMS MAY BECOME STRONG TO SEVERE WITH DAMAGING WINDS BEING THE MAIN THREAT. MARGINALLY SEVERE HAIL IS ALSO POSSIBLE ALTHOUGH A FREEZING LEVEL NEAR 15000 FT AND A WET BULB ZERO NEAR 13000 FT SHOULD REDUCE THE HAIL THREAT. JCL && .PREV DISCUSSION... /ISSUED 1013 AM CDT THU JUN 12 2008/ UPDATE... A STRONG H5 RIDGE OF 5900 M WAS CENTERED ALONG THE NC COAST AND STRETCHED WESTWARD ACROSS THE MID-SOUTH. THIS RIDGE WILL ONCE AGAIN SUPPRESS MOST CONVECTION ACROSS THE AREA. WATER VAPOR IMAGERY DOES SHOW AN INCREASE IN MID AND HIGH LEVEL MOISTURE SPREADING INTO NORTHEAST MS FROM THE SOUTHEAST. EXPANDED THE SLIGHT CHANCE OF THUNDERSTORMS A LITTLE TO INCLUDE THE SOUTHEAST CORNER OF WEST TN ALONG WITH MUCH OF NORTHEAST MS. TEMPERATURES ARE EXPECTED TO ONCE AGAIN CLIMB TO ABOUT 5 DEGREES ABOVE NORMAL ACROSS MUCH OF THE MID-SOUTH THIS AFTERNOON...REACHING INTO THE LOWER 90S OVER MOST OF THE AREA. SURFACE DEWPOINTS HAVE INCREASED A LITTLE SINCE YESTERDAY...AND WILL BE IN THE UPPER 60S TO AROUND 70 THIS AFTERNOON...MAKING FOR MORE HOT CONDITIONS TODAY. SKIES WILL BE PARTLY CLOUDY THIS AFTERNOON WITH SCATTERED TO BROKEN CUMULUS DEVELOPMENT. HAVE ALREADY MADE THE APPROPRIATE CHANGES TO THE GRIDS AND UPDATED THE ZONES. JCL PREV DISCUSSION... /ISSUED 250 AM CDT THU JUN 12 2008/ DISCUSSION... SKIES ARE CLEAR ACROSS THE FORECAST AREA EARLY THIS MORNING WITH TEMPERATURES MAINLY IN THE 70S. COLD FRONT REMAINS WEST OF THE REGION EXTENDING FROM CENTRAL MINNESOTA THROUGH NORTHEAST KANSAS AND INTO THE TEXAS PANHANDLE. WITH COLD FRONT FAR ENOUGH TO OUR WEST DO NOT SEE MUCH IN THE WAY OF THUNDERSTORM DEVELOPMENT TODAY. SOME ISOLATED THUNDERSTORMS WILL BE POSSIBLE OVER NORTHEAST MISSISSIPPI WITH DAYTIME HEATING AND WHERE CONDITIONS ARE A LITTLE MORE UNSTABLE. TONIGHT SHOULD REMAIN DRY AS COLD FRONT DOES INCH CLOSER TO THE FORECAST AREA BUT NOT CLOSE ENOUGH TO TRIGGER ANY THUNDERSTORMS. BY FRIDAY...THE COLD FRONT SHOULD BE CLOSE ENOUGH TO PRODUCE SOME SCATTERED THUNDERSTORMS OVER THE FORECAST AREA. THERE IS A SMALL CHANCE FOR SEVERE WEATHER OVER THE NORTHERN PART OF THE FORECAST AREA DURING THE DAY ON FRIDAY WITH THE MAIN THREAT BEING LARGE HAIL AND DAMAGING WINDS. THE COLD FRONT MOVES SLOWLY AND WEAKENS THROUGH THE FORECAST AREA ON FRIDAY NIGHT AND SATURDAY SO THERE WILL BE A CONTINUED CHANCE OF THUNDERSTORMS. BY SATURDAY NIGHT...THE FRONT WEAKENS AND MOVES OUT OF THE REGION WITH THE RISK OF THUNDERSTORMS ENDING. HIGH PRESSURE BUILDS INTO THE REGION BY SUNDAY BRINGING DRY WEATHER FOR SUNDAY AND SUNDAY NIGHT. ANOTHER WEAK COLD FRONT MOVES TOWARD THE REGION BY MONDAY AND INTO THE FORECAST AREA FOR MONDAY NIGHT AND TUESDAY SO THERE WILL ANOTHER CHANCE FOR THUNDERSTORMS. HIGH PRESSURE BUILDS BACK INTO THE REGION BY TUESDAY NIGHT SO DRY WEATHER RETURNS FOR TUESDAY NIGHT AND WEDNESDAY. && .PRELIMINARY POINT TEMPS/POPS... MEM 75 91 73 88 / 10 30 40 40 MKL 72 88 70 85 / 10 30 50 40 JBR 73 92 70 88 / 10 30 50 40 TUP 72 90 71 87 / 10 30 30 40 && .MEG WATCHES/WARNINGS/ADVISORIES... AR...NONE. MO...NONE. MS...NONE. TN...NONE. &&
In the hours before
Special weather statement, Jun 12, 2:44 PM CDT, 1 hour 1 minute before
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</html>Special weather statement, Jun 12, 3:14 PM CDT, 31 minutes before
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</html>Local storm report, Jun 12, 3:42 PM CDT, 3 minutes before
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</html>The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 2:53 PM CDT | Severe Thunderstorm Warning | MEG | DeSoto | 18 min |
| Jun 12, 3:50 PM CDT | Flash Flood Warning | MEG | Hardeman | 115 min |
Nearby
Flash Flood Warnings in Mississippi, 2008Every flash flood warning in 2008
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.