Alert archive / Arkansas / Flash Flood Warnings in 2010
Flash Flood Warning 225, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Jul 12, 2010, 8:45 AM CDT for Shelby County, Tipton County, Tennessee; DeSoto County, Mississippi; 5 counties in Arkansas. It was in force for 60 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 12, 2010, 8:45 AM CDT (13:45 UTC)
- Expired
- Jul 12, 2010, 9:45 AM CDT
- In force
- 60 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Crittenden County, AR, Cross County, AR, Mississippi County, AR, Poinsett County, AR, St. Francis County, AR, DeSoto County, MS, Shelby County, TN, Tipton County, TN
The radar
The Memphis radar (KNQA), 37 km from the middle of the area, began a volume at 13:45 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
Little Rock, AR (KLZK), launched 12:00Z, 1.8 hours before the alert went out and 60 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
- 1840 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 956 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.5
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 Jul 12, 6:11 AM CDT, 2 hours 34 minutes earlier.
Area forecast discussion, Jul 12, 6:11 AM CDT, 2 hours 34 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jul 12, 4:36 AM CDT, 4 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEMPHIS TN 436 AM CDT MON JUL 12 2010 ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115- MSZ001>017-020>024-TNZ001>004-019>021-048>055-088>092-131145- ALCORN-BENTON MS-CALHOUN-CARROLL-CHESTER-CHICKASAW-CLAY-COAHOMA- CRAIGHEAD-CRITTENDEN-CROCKETT-CROSS-DESOTO-DECATUR-DUNKLIN-DYER- FAYETTE-GIBSON-GREENE-HARDEMAN-HARDIN-HAYWOOD-HENDERSON-HENRY- ITAWAMBA-LAFAYETTE-LAKE-LAUDERDALE-LAWRENCE-LEE AR-LEE MS-MADISON- MARSHALL-MCNAIRY-MISSISSIPPI-MONROE-OBION-PANOLA-PEMISCOT- PHILLIPS-POINSETT-PONTOTOC-PRENTISS-QUITMAN-RANDOLPH-SHELBY- ST. FRANCIS-TALLAHATCHIE-TATE-TIPPAH-TIPTON-TISHOMINGO-TUNICA- UNION-WEAKLEY-YALOBUSHA- 436 AM CDT MON JUL 12 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST ARKANSAS... THE MISSOURI BOOTHEEL...NORTH MISSISSIPPI...AND WEST TENNESSEE. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS WEST OF THE MISSISSIPPI RIVER TODAY AND TONIGHT. DAMAGING WINDS WILL BE PRIMARY SEVERE THREAT. HEAVY RAIN AND LOCALIZED FLASH FLOODING WILL BE POSSIBLE TODAY...FOLLOWED BY AN INCREASE THREAT OF FLASH FLOODING TONIGHT. A FLASH FLOOD WATCH IS IN EFFECT TONIGHT FOR NORTHEAST ARKANSAS... THE MISSOURI BOOTHEEL AND NORTHWEST TENNESSEE. FLASH FLOODING WILL STILL BE POSSIBLE FOR AREAS OF THE MIDSOUTH OUTSIDE OF THE FLASH FLOOD WATCH...BUT FLASH FLOODING OVER THESE AREAS WILL LIKELY BE MORE LOCALIZED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE FLASH FLOOD THREAT SHOULD DIMINISH BY MIDDAY TUESDAY. HOT AND HUMID CONDITIONS WILL PREVAIL ACROSS THE MIDSOUTH FROM MIDWEEK THROUGH THE WEEKEND. AFTERNOON HEAT INDICES MAY REACH HEAT ADVISORY CRITERIA BY THE MIDDLE OF THE WEEK. A FEW STRONG THUNDERSTORMS WILL BE POSSIBLE THROUGH THE WEEKEND... MAINLY EAST OF THE MISSISSIPPI RIVER DURING THE AFTERNOON HOURS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUESTED TODAY AND TONIGHT WEST OF THE MISSISSIPPI RIVER AND OVER NORTHWEST TENNESSEE. PWB
In the hours before
Local storm report, Jul 12, 4:54 AM CDT, 3 hours 51 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, Jul 12, 7:24 AM CDT, 1 hour 21 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, Jul 12, 7:51 AM CDT, 54 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 8:13 PM CDT | Flash Flood Warning | MEG | Carroll, Gibson, Henry, Weakley | 2 hr |
| Jul 12, 2:47 AM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Jul 12, 3:42 AM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Jul 12, 4:21 AM CDT | Flash Flood Watch | MEG | Carroll, Chester, Crockett, Decatur, Dyer, Fayette and 14 more | 30 hr |
| Jul 12, 5:39 AM CDT | Flash Flood Warning | MEG | Shelby, Tipton | 3 hr |
| Jul 12, 6:36 AM CDT | Flash Flood Warning | MEG | Shelby | 84 min |
| Jul 12, 7:54 AM CDT | Flash Flood Warning | MEG | Shelby | 2 hr |
| Jul 12, 8:51 AM CDT | Flash Flood Warning | MEG | Fayette, Hardeman, Shelby | 114 min |
| Jul 12, 4:16 PM CDT | Areal Flood Advisory | MEG | Tipton | 3 hr |
| Jul 12, 4:17 PM CDT | Severe Thunderstorm Warning | MEG | Crockett, Haywood, Lauderdale, Madison, Tipton | 43 min |
| Jul 12, 4:46 PM CDT | Severe Thunderstorm Warning | MEG | Fayette, Haywood, Shelby, Tipton | 24 min |
| Jul 12, 5:52 PM CDT | Severe Thunderstorm Warning | MEG | Chester, Decatur, Henderson, Madison | 38 min |
| Jul 11, 8:55 PM CDT | Severe Thunderstorm Warning | MEG | Greene, Lawrence, Randolph | 34 min |
| Jul 11, 9:20 PM CDT | Flash Flood Warning | MEG | Clay, Greene, Lawrence, Randolph | 3 hr |
| Jul 11, 10:15 PM CDT | Flash Flood Warning | MEG | Craighead, Greene, Mississippi | 117 min |
| Jul 11, 10:22 PM CDT | Flash Flood Warning | MEG | Lawrence, Randolph | 113 min |
| Jul 12, 1:40 AM CDT | Flash Flood Warning | MEG | Cross, Poinsett | 5 hr |
| Jul 12, 3:52 AM CDT | Flash Flood Warning | MEG | Greene, Lawrence, Randolph | 3 hr |
| Jul 12, 2:24 PM CDT | Severe Thunderstorm Warning | MEG | Craighead, Greene, Lawrence, Poinsett | 51 min |
| Jul 12, 3:18 PM CDT | Severe Thunderstorm Warning | MEG | Clay, Craighead, Greene, Mississippi | 30 min |
| Jul 12, 4:55 PM CDT | Severe Thunderstorm Warning | MEG | Lawrence | 25 min |
| Jul 12, 4:57 PM CDT | Flash Flood Warning | MEG | Lawrence, Randolph | 2 hr |
| Jul 12, 6:35 PM CDT | Severe Thunderstorm Warning | MEG | Lee, St. Francis | 40 min |
| Jul 12, 6:42 PM CDT | Severe Thunderstorm Warning | MEG | Cross, Poinsett | 48 min |
Nearby
Flash Flood Warnings in Arkansas, 2010Flash Flood Warnings in Tennessee, 2010Flash Flood Warnings in Mississippi, 2010Every flash flood warning in 2010
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.