Alert archive / Iowa / Heat Advisories in 2007

Heat Advisory 1, NWS Des Moines, IA

August 13, 200723 counties in Iowa

NWS Des Moines, IA issued this heat advisory at Aug 13, 2007, 10:03 AM CDT for 23 counties in Iowa. It took effect at Aug 13, 2007, 1:00 PM CDT. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
Aug 13, 2007, 10:03 AM CDT (15:03 UTC)
In effect from
Aug 13, 2007, 1:00 PM CDT
Expired
Aug 14, 2007, 12:26 PM CDT
In force
23 hr
Issued by
NWS Des Moines, IA
All 23 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Greene County, IA, Guthrie County, IA, Lucas County, IA, Madison County, IA, Monroe County, IA, Polk County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA

The radar

The Des Moines radar (KDMX), 57 km from the middle of the area, began a volume at 15:11 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.

What forecasters said that day

The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before this heat advisory went out at Aug 13, 6:50 AM CDT, 3 hours 13 minutes earlier.

Area forecast discussion, Aug 13, 6:50 AM CDT, 3 hours 13 minutes before
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Hazardous weather outlook, Aug 13, 5:29 AM CDT, 4 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
529 AM CDT MON AUG 13 2007

IAZ004>007-015>017-023>028-037>039-049-050-062-075-141045-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY-
BLACK HAWK-MARSHALL-TAMA-POWESHIEK-MAHASKA-
529 AM CDT MON AUG 13 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN AND CENTRAL
IOWA.

.DAY ONE...TODAY AND TONIGHT

ISOLATED MAINLY NON SEVERE THUNDERSTORMS ARE POSSIBLE THIS MORNING.
MORE WIDESPREAD AND POTENTIALLY SEVERE STORMS ARE EXPECTED THIS
EVENING AFTER 6 PM AND WILL CONTINUE PAST MIDNIGHT EAST OF INTERSTATE
35. THE MAIN THREAT FROM THESE STORMS WILL BE WINDS IN EXCESS OF
70 MPH ALONG WITH LARGE HAIL. AN ISOLATED TORNADO IS ALSO POSSIBLE
WITHIN STORMS THAT DEVELOP ALONG A WARM FRONTAL BOUNDARY WHICH WILL
STRETCH ACROSS NORTHERN IOWA THIS EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

PERIODS OF THUNDERSTORMS ARE EXPECTED TUESDAY EVENING THROUGH
WEDNESDAY AND AGAIN LATE THURSDAY THROUGH SUNDAY. SOME OF THE
STORMS TUESDAY AFTERNOON AND EVENING MAY BE SEVERE. SOME OF THE
STORMS LATE THURSDAY INTO FRIDAY MAY PRODUCE LOCALLY HEAVY RAINFALL.
THOUGH THE THREAT FOR ADVERSE WEATHER IS INCREASING FOR THESE TWO
PERIODS IN PARTICULAR...IT IS TOO EARLY TO DETERMINE THE LOCATION
OF GREATEST RISK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS MORNING...BUT IS
BECOMING MORE LIKELY THIS EVENING ACROSS THE OUTLOOKED AREA.
ADDITIONALLY...SPOTTER ACTIVATION MAY BE NEEDED LATE TUESDAY
AFTERNOON AND EVENING.

IAZ033-044-045-057-058-070-071-081-082-092-093-141045-
SAC-CRAWFORD-CARROLL-AUDUBON-GUTHRIE-CASS-ADAIR-ADAMS-UNION-
TAYLOR-RINGGOLD-
529 AM CDT MON AUG 13 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
AND SOUTHERN IOWA.

.DAY ONE...TODAY AND TONIGHT

HOT AND HUMID WEATHER IS EXPECTED TODAY WITH HEAT INDEX READINGS
APPROACHING THE 102 TO 107 RANGE DURING THE AFTERNOON AND EARLY
EVENING HOURS. ISOLATED THUNDERSTORMS ARE POSSIBLE THIS LATER THIS
EVENING WITH A FEW STORMS BEING SEVERE WITH WIND AND HAIL BEING
THE MAIN THREAT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

PERIODS OF THUNDERSTORMS ARE EXPECTED TUESDAY EVENING THROUGH
WEDNESDAY AND AGAIN LATE THURSDAY THROUGH SUNDAY. SOME OF THE
STORMS TUESDAY AFTERNOON AND EVENING MAY BE SEVERE. SOME OF THE
STORMS LATE THURSDAY INTO FRIDAY MAY PRODUCE LOCALLY HEAVY
RAINFALL. THOUGH THE THREAT FOR ADVERSE WEATHER IS INCREASING FOR
THESE TWO PERIODS IN PARTICULAR...IT IS TOO EARLY TO DETERMINE THE
LOCATION OF GREATEST RISK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS MORNING. SPOTTER
ACTIVATION MAY BE NEEDED LATE TUESDAY AFTERNOON AND EVENING.

IAZ034>036-046>048-059>061-072>074-083>086-094>097-141045-
CALHOUN-WEBSTER-HAMILTON-GREENE-BOONE-STORY-DALLAS-POLK-JASPER-
MADISON-WARREN-MARION-CLARKE-LUCAS-MONROE-WAPELLO-DECATUR-WAYNE-
APPANOOSE-DAVIS-
529 AM CDT MON AUG 13 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN IOWA.

.DAY ONE...TODAY AND TONIGHT

WIDELY SCATTERED...MAINLY NON SEVERE THUNDERSTORMS ARE EXPECTED THIS
MORNING. HOT AND HUMID WEATHER IS EXPECTED THIS AFTERNOON WITH
HEAT INDEX READINGS RANGING FROM 100 TO 105 DEGREES. SCATTERED AND
POTENTIALLY SEVERE STORMS ARE EXPECTED AFTER 8 PM GENERALLY NORTH
OF HIGHWAY 30 LATER THIS EVENING AND WILL CONTINUE PAST MIDNIGHT
EAST OF INTERSTATE 35. THE MAIN THREAT FROM THESE STORMS WILL BE
WINDS IN EXCESS OF 70 MPH ALONG WITH LARGE HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

PERIODS OF THUNDERSTORMS ARE EXPECTED TUESDAY EVENING THROUGH
WEDNESDAY AND AGAIN LATE THURSDAY THROUGH SUNDAY. SOME OF THE
STORMS TUESDAY AFTERNOON AND EVENING MAY BE SEVERE. SOME OF THE
STORMS LATE THURSDAY INTO FRIDAY MAY PRODUCE LOCALLY HEAVY
RAINFALL. THOUGH THE THREAT FOR ADVERSE WEATHER IS INCREASING FOR
THESE TWO PERIODS IN PARTICULAR...IT IS TOO EARLY TO DETERMINE THE
LOCATION OF GREATEST RISK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THIS MORNING...BUT IS
BECOMING MORE LIKELY THIS EVENING ACROSS NORTHERN PORTIONS OF THE
OUTLOOKED AREA. ADDITIONALLY...SPOTTER ACTIVATION MAY BE NEEDED
LATE TUESDAY AFTERNOON AND EVENING.

REV

In the hours before

Local storm report, Aug 13, 7:08 AM CDT, 2 hours 55 minutes before
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The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 12, 7:01 PM CDTSevere Thunderstorm WarningDMXUnion59 min
Aug 12, 7:07 PM CDTSevere Thunderstorm WarningDMXRinggold53 min
Aug 12, 7:20 PM CDTSevere Thunderstorm WarningDMXClarke55 min
Aug 12, 7:27 PM CDTSevere Thunderstorm WarningDMXWarren48 min
Aug 12, 7:37 PM CDTSevere Thunderstorm WarningDMXDecatur53 min
Aug 12, 7:52 PM CDTSevere Thunderstorm WarningDMXLucas53 min
Aug 12, 8:01 PM CDTSevere Thunderstorm WarningDMXWayne45 min
Aug 12, 8:20 PM CDTSevere Thunderstorm WarningDMXAppanoose55 min
Aug 13, 6:22 AM CDTSevere Thunderstorm WarningDMXBoone23 min

Nearby

Heat Advisories in Iowa, 2007Every heat advisory 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; radar from the NEXRAD Level II archive.