Alert archive / Iowa / Special Weather Statements in 2017
Special Weather Statement, NWS Quad Cities, IA
NWS Quad Cities, IA issued this special weather statement at Oct 14, 2017, 1:44 PM CDT for Henry County, Iowa. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 14, 2017, 1:44 PM CDT (18:44 UTC)
- Expired
- Oct 14, 2017, 2:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Quad Cities, IA
County Henry County, IA
The radar
The Quad Cities radar (KDVN), 92 km from the middle of the area, began a volume at 18:45 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
Davenport, (KDVN), launched 12:00Z, 6.7 hours before the alert went out and 98 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 594 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Oct 14, 1:07 PM CDT, 37 minutes earlier.
Area forecast discussion, Oct 14, 1:07 PM CDT, 37 minutes before
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</html>Hazardous weather outlook, Oct 14, 5:12 AM CDT, 8 hours 32 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 512 AM CDT Sat Oct 14 2017 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-151000- 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- 512 AM CDT Sat Oct 14 2017 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 More rounds of showers and thunderstorms will occur today and this evening. Strong to severe storms are possible later this afternoon and evening across much of the Outlook area, but areas currently more favored are generally east and south of a line from Freeport in northwestern Illinois, to Tipton Iowa, and to Sigourney in southeastern Iowa. The main threats are damaging winds up to 70 mph and isolated tornadoes. The Storm Prediction Center has placed these favored areas in an enhanced risk for severe weather. The rest of the area is in either a slight risk or marginal risk for severe weather today and tonight. Widespread heavy rain is also expected through tonight. localized amounts of more than 3 inches are possible. With some areas getting more saturated from recent rounds of heavy rainfall, additional rounds of thunderstorms and high rainfall rates could produce flash flooding. Flooding may also occur on small streams an creeks, along with in bank rises on area rivers. A Flash Flood Watch has been issued through tonight for areas generally along and north of a line from Sigourney Iowa, to Princeton Illinois. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY Patchy frost is possible early Monday morning, especially along and north of Interstate 80. .SPOTTER INFORMATION STATEMENT... Spotter activation is likely this afternoon and evening. 12/RP KINNEY
In the hours before
Special weather statement, Oct 14, 9:02 AM CDT, 4 hours 42 minutes before
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</html>Special weather statement, Oct 14, 12:11 PM CDT, 1 hour 33 minutes before
Special Weather Statement
National Weather Service Quad Cities IA/IL
1211 PM CDT SAT OCT 14 2017
ILC067-071-109-141745-
Hancock-Henderson-McDonough-
1211 PM CDT SAT OCT 14 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN HANCOCK...
SOUTHEASTERN HENDERSON AND NORTHWESTERN MCDONOUGH COUNTIES UNTIL 1245
PM CDT...
At 1211 PM CDT, a strong thunderstorm was located near La Harpe, or
10 miles northeast of Carthage, moving northeast at 40 mph.
Winds in excess of 30 mph and dime size hail are possible with this
storm.
Locations impacted include...
La Harpe and Blandinsville.
LAT...LON 4054 9110 4071 9090 4066 9079 4064 9079
4063 9074 4060 9067 4047 9102
TIME...MOT...LOC 1711Z 234DEG 35KT 4053 9101
MCCLURELocal storm report, Oct 14, 12:42 PM CDT, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1242 PM CDT SAT OCT 14 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1240 PM HEAVY RAIN ESE WELLMAN 41.47N 91.83W
10/14/2017 M1.25 INCH WASHINGTON IA TRAINED SPOTTER
RAINFALL SO FAR.
&&Special weather statement, Oct 14, 1:44 PM CDT, 0 minutes before
Special Weather Statement National Weather Service Quad Cities IA/IL 144 PM CDT SAT OCT 14 2017 IAC057-087-115-141915- Henry-Des Moines-Louisa- 144 PM CDT SAT OCT 14 2017 ...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL HENRY... NORTHWESTERN DES MOINES AND SOUTH CENTRAL LOUISA COUNTIES UNTIL 215 PM CDT... At 144 PM CDT, a strong thunderstorm was located near Mount Union, or near Mount Pleasant, moving northeast at 50 mph. Nickel size hail is possible with this storm. Locations impacted include... Mount Pleasant, Wapello, Mediapolis, Morning Sun, Mount Union, Elrick Junction, Virginia Grove Recreation Area, Mount Pleasant Municipal Arpt, Marsh, Northfield, Garland and Yarmouth. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. LAT...LON 4091 9148 4099 9156 4122 9120 4106 9103 TIME...MOT...LOC 1844Z 236DEG 44KT 4100 9142 MCCLURE
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 14, 1:03 AM CDT | Special Weather Statement | DVN | Jefferson, Louisa, Washington | 57 min |
| Oct 14, 1:48 AM CDT | Special Weather Statement | DVN | Louisa, Muscatine, Scott | 57 min |
| Oct 14, 3:30 AM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 19 hr |
| Oct 14, 9:02 AM CDT | Special Weather Statement | DVN | Washington | 28 min |
| Oct 14, 9:42 AM CDT | Special Weather Statement | DVN | Louisa, Muscatine, Scott | 48 min |
| Oct 14, 4:46 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 59 min |
| Oct 14, 5:17 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 43 min |
| Oct 14, 5:31 PM CDT | Tornado Warning | DVN | Lee | 44 min |
| Oct 14, 2:18 AM CDT | Special Weather Statement | DVN | Rock Island | 27 min |
| Oct 14, 3:03 AM CDT | Special Weather Statement | DVN | Whiteside | 57 min |
| Oct 14, 5:55 AM CDT | Special Weather Statement | DVN | Bureau, Putnam | 65 min |
| Oct 14, 6:05 AM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 40 min |
| Oct 14, 10:45 AM CDT | Special Weather Statement | DVN | Henry | 45 min |
| Oct 14, 12:11 PM CDT | Special Weather Statement | DVN | McDonough | 34 min |
| Oct 14, 5:07 PM CDT | Special Weather Statement | DVN | Henderson | 23 min |
| Oct 14, 5:26 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, Warren | 79 min |
| Oct 14, 5:43 PM CDT | Special Weather Statement | DVN | Bureau, Henry | 32 min |
| Oct 14, 5:51 PM CDT | Severe Thunderstorm Warning | DVN | McDonough | 54 min |
| Oct 14, 6:15 PM CDT | Special Weather Statement | DVN | Bureau, Putnam | 30 min |
| Oct 14, 6:25 PM CDT | Tornado Warning | DVN | Hancock | 20 min |
| Oct 14, 6:53 PM CDT | Areal Flood Warning | DVN | Henry | 12 hr |
Nearby
Special Weather Statements in Iowa, 2017Every special weather statement 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.