Alert archive / Arkansas / Excessive Heat Warnings in 2017
Excessive Heat Warning 4, NWS Memphis, TN
NWS Memphis, TN issued this excessive heat warning at Jul 25, 2017, 2:25 PM CDT for 5 counties in Arkansas. It was in force for 5 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
- Jul 25, 2017, 2:25 PM CDT (19:25 UTC)
- Expired
- Jul 25, 2017, 7:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Memphis, TN
Counties Clay County, AR, Craighead County, AR, Greene County, AR, Mississippi County, AR, Poinsett County, AR
The radar
The Memphis radar (KNQA), 84 km from the middle of the area, began a volume at 19:25 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 (KBYH), launched 12:00Z, 7.4 hours before the alert went out and 131 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
- 1789 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1149 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this excessive heat 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 excessive heat warning went out at Jul 25, 1:07 PM CDT, 1 hour 18 minutes earlier.
Area forecast discussion, Jul 25, 1:07 PM CDT, 1 hour 18 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 25, 3:08 AM CDT, 11 hours 17 minutes before
Hazardous Weather Outlook National Weather Service Memphis TN 308 AM CDT Tue Jul 25 2017 ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115- MSZ001>017-020>024-TNZ001>004-019>022-048>055-088>092-261015- Alcorn-Benton MS-Benton TN-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- 308 AM CDT Tue Jul 25 2017 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...Today and Tonight Heat indices of 105 to 109 degrees are expected along and west of the Mississippi River today. A Heat Advisory is in effect for this afternoon through early evening. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Heat indices of 105 to 109 degrees are expected along and west of the Mississippi River for Wednesday. A Heat Advisory is in effect for most areas along and west of the Mississippi River for tomorrow. This advisory may need to be expanded into Thursday. A cold front is forecast to move across the Mid-South Thursday night into Friday, bringing a chance for a few strong to severe thunderstorms and heavy rainfall. .SPOTTER INFORMATION STATEMENT... Spotter activation may be possible Thursday night and into Friday. JAB
In the hours before
Special weather statement, Jul 25, 2:06 PM CDT, 19 minutes before
Special Weather Statement
National Weather Service Memphis TN
206 PM CDT TUE JUL 25 2017
ARZ018-251930-
Greene AR-
206 PM CDT TUE JUL 25 2017
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 230 PM CDT
FOR...
Southeastern Greene County in eastern Arkansas...
At 206 PM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located near Paragould, moving
southeast at 10 mph.
Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.
People in southeastern Greene County should monitor this storm
closely.
LAT...LON 3608 9032 3607 9032 3607 9033 3605 9034
3600 9039 3597 9051 3610 9058 3618 9038
TIME...MOT...LOC 1906Z 334DEG 7KT 3608 9044The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 2:06 PM CDT | Special Weather Statement | MEG | Greene | 24 min |
| Jul 25, 2:25 PM CDT | Heat Advisory | MEG | Clay, Craighead, Greene, Mississippi, Poinsett | 22 hr |
| Jul 25, 3:06 PM CDT | Special Weather Statement | MEG | Craighead | 24 min |
| Jul 25, 3:41 PM CDT | Flash Flood Warning | MEG | Craighead | 3 hr |
| Jul 25, 4:34 PM CDT | Flash Flood Warning | MEG | Craighead | 3 hr |
Nearby
Excessive Heat Warnings in Arkansas, 2017Every excessive heat warning in 2017
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.