Alert archive / Iowa / Heat Advisories in 2012
Heat Advisory 3, NWS Quad Cities, IA
NWS Quad Cities, IA issued this heat advisory at Jun 30, 2012, 3:47 AM CDT for 5 counties in Iowa; 4 counties in Illinois; Clark County, Scotland County, Missouri. It took effect at Jun 30, 2012, 11:00 AM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jun 30, 2012, 3:47 AM CDT (08:47 UTC)
- In effect from
- Jun 30, 2012, 11:00 AM CDT
- Expired
- Jun 30, 2012, 8:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Quad Cities, IA
Counties Des Moines County, IA, Henry County, IA, Jefferson County, IA, Lee County, IA, Van Buren County, IA, Hancock County, IL, Henderson County, IL, McDonough County, IL, Warren County, IL, Clark County, MO, Scotland County, MO
The radar
The Quad Cities radar (KDVN), 122 km from the middle of the area, began a volume at 08:47 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
Davenport, (KDVN), launched 00:00Z, 8.8 hours before the alert went out and 127 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
- 2804 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1629 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.9
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 Quad Cities, IA wrote its last area forecast discussion before this heat advisory went out at Jun 30, 3:36 AM CDT, 11 minutes earlier.
Area forecast discussion, Jun 30, 3:36 AM CDT, 11 minutes before
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</html>Hazardous weather outlook, Jun 29, 11:28 AM CDT, 16 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 1128 AM CDT FRI JUN 29 2012 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-300915- BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON- CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON- HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL- WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON- WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK- 1128 AM CDT FRI JUN 29 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST MISSOURI. .DAY ONE...TODAY AND TONIGHT THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT FOR MUCH OF THE OUTLOOK AREA. DUE TO THE EXTREMELY UNSTABLE AIRMASS ANY STORMS COULD PRODUCE DAMAGING WINDS OF AT LEAST 70 MPH AND GOLF BALL SIZE HAIL OR LARGER. TORRENTIAL RAINS OF SEVERAL INCHES ARE POSSIBLE ESPECIALLY IF STORMS TRAIN OVER THE SAME AREA. A HEAT ADVISORY IS IN EFFECT THROUGH EARLY SATURDAY MORNING FOR LOCATIONS SOUTH OF INTERSTATE 80. HEAT INDEX VALUES WILL RANGE FROM 100 TO 110. HEAT ADVISORYS MAY NEED TO BE ISSUED FOR THIS WEEKEND FOR DANGEROUS HEAT AND HUMIDITY FOR AT LEAST A PORTION OF THE OUTLOOK AREA. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SATURDAY THROUGH MONDAY...THUNDERSTORMS ARE POSSIBLE THROUGH THE PERIOD AS A WEAK FRONT LINGERS OVER THE AREA. SOME THUNDERSTORMS MAY BE SEVERE...ESPECIALLY IN THE LATE NIGHT HOURS SATURDAY NIGHT. THE PRIMARY SEVERE WEATHER THREAT WILL BE DAMAGING WIND...WITH A SECONDARY LESSER POTENTIAL FOR LARGE HAIL AND LOCALLY HEAVY RAINFALL. HEAT INDEX READINGS MAY EXCEED 100 SATURDAY AND SUNDAY AFTERNOON AND EVENING...ESPECIALLY SOUTH OF INTERSTATE 80. HOT AND SOMEWHAT HUMID CONDITIONS WILL CONTINUE INTO NEXT WEEK...WITH HEAT INDEX READINGS ABOVE 100 POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY AND TONIGHT.
In the hours before
Local storm report, Jun 29, 10:38 PM CDT, 5 hours 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1038 PM CDT FRI JUN 29 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1033 PM HAIL 4 ENE NICHOLS 41.50N 91.24W
06/29/2012 E1.00 INCH MUSCATINE IA BROADCAST MEDIA
MOSTLY NICKEL SIZE WITH SOME QUARTER SIZE HAIL.
&&
MCCLURESpecial weather statement, Jun 30, 1:18 AM CDT, 2 hours 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
118 AM CDT SAT JUN 30 2012
IAZ078-089-ILZ024>026-300715-
DES MOINES-HENDERSON-LOUISA-MERCER-WARREN-
118 AM CDT SAT JUN 30 2012
...STRONG THUNDERSTORMS IN WESTERN ILLINOIS...
AT 115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM KEITHSBURG TO 6
MILES SOUTHEAST OF NORTH HENDERSON...MOVING SOUTHEAST AT 25 MPH.
THE STRONGER STORMS MAY PRODUCE PENNY TO NICKEL SIZE HAIL AND HEAVY
RAINFALL.
* THUNDERSTORMS WILL BE NEAR...
LITTLE YORK AROUND 125 AM CDT...
ROZETTA AROUND 140 AM CDT...
MONMOUTH AROUND 145 AM CDT...
KIRKWOOD AROUND 200 AM CDT...
ROSEVILLE AND 7 MILES NORTH OF LITTLE SWAN LAKE AROUND 215 AM
CDT...
LAT...LON 4066 9052 4066 9057 4066 9058 4067 9068
4116 9115 4111 9043 4066 9044 4065 9045
4065 9051
TIME...MOT...LOC 0617Z 324DEG 23KT 4108 9096 4104 9036
HAASESpecial weather statement, Jun 30, 1:42 AM CDT, 2 hours 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 142 AM CDT SAT JUN 30 2012 IAZ076>078-088-089-ILZ024>026-300730- WASHINGTON IA-LOUISA IA-KEOKUK IA-HENRY IA-DES MOINES IA-MERCER IL- WARREN IL-HENDERSON IL- 142 AM CDT SAT JUN 30 2012 ...LINE OF THUNDERSTORMS IN SOUTHEAST IOWA AND WESTERN ILLINOIS... AT 137 AM CDT DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS FROM NEAR SIGOURNEY IOWA IN KEOKUK COUNTY TO GALESBURG ILLINOIS. THE LINE WAS MOVING SLOWLY SOUTHEAST AND WAS PRODUCING HEAVY RAINFALL AND FREQUENT LIGHTNING. SOME OF THE STRONGER STORMS MAY ALSO PRODUCE PENNY TO NICKEL SIZE HAIL. DOPPLER RADAR INDICATED RAINFALL OF 1 TO 2 INCHES IN THE PAST 3 HOURS AT SOME LOCATIONS. EXPECT PONDING OF WATER ON ROADS AND IN LOW-LYING AREAS. && LAT...LON 4131 9223 4144 9212 4107 9043 4088 9044 HAASE
Special weather statement, Jun 30, 3:15 AM CDT, 32 minutes before
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</html>The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:19 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 26 min |
| Jun 29, 8:22 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Washington | 38 min |
| Jun 29, 11:06 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson | 25 min |
| Jun 30, 1:42 AM CDT | Special Weather Statement | DVN | Keokuk, Louisa, Washington | 48 min |
| Jun 30, 1:47 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 28 min |
| Jun 30, 3:15 AM CDT | Special Weather Statement | DVN | Des Moines | 60 min |
| Jun 30, 4:30 AM CDT | Special Weather Statement | DVN | Iowa | 60 min |
| Jun 30, 4:54 AM CDT | Special Weather Statement | DVN | Iowa | 66 min |
| Jun 29, 7:23 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 47 min |
| Jun 29, 7:41 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Henry, Whiteside | 64 min |
| Jun 30, 1:18 AM CDT | Special Weather Statement | DVN | Warren | 57 min |
| Jun 30, 6:57 AM CDT | Special Weather Statement | DVN | Mercer | 63 min |
| Jun 30, 7:28 AM CDT | Special Weather Statement | DVN | Henry | 62 min |
| Jun 30, 7:48 AM CDT | Special Weather Statement | DVN | Henry | 57 min |
Nearby
Heat Advisories in Iowa, 2012Heat Advisories in Illinois, 2012Heat Advisories in Missouri, 2012Every heat advisory in 2012
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.