Alert archive / Iowa / Special Weather Statements in 2016
Special Weather Statement, NWS Omaha, NE
NWS Omaha, NE issued this special weather statement at Aug 2, 2016, 3:29 AM CDT for Cass County, Otoe County, Nebraska; Fremont County, Mills County, Pottawattamie County, Iowa. It was in force for 46 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
- Aug 2, 2016, 3:29 AM CDT (08:29 UTC)
- Expired
- Aug 2, 2016, 4:15 AM CDT
- In force
- 46 min
- Issued by
- NWS Omaha, NE
Counties Fremont County, IA, Mills County, IA, Pottawattamie County, IA, Cass County, NE, Otoe County, NE
The radar
The Omaha radar (KOAX), 47 km from the middle of the area, began a volume at 08:29 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
Omaha, NE (KOAX), launched 00:00Z, 8.5 hours before the alert went out and 47 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
- 425 J/kg
- Mixed-layer CIN
- -377 J/kg
- Mixed-layer LCL
- 1200 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Omaha, NE wrote its last area forecast discussion before this special weather statement went out at Aug 2, 3:00 AM CDT, 29 minutes earlier.
Area forecast discussion, Aug 2, 3:00 AM CDT, 29 minutes before
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</html>Hazardous weather outlook, Aug 2, 3:13 AM CDT, 16 minutes before
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Special weather statement, Aug 2, 12:50 AM CDT, 2 hours 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 1250 AM CDT TUE AUG 2 2016 NEZ033-044-020615- DODGE NE-CUMING NE- 1250 AM CDT TUE AUG 2 2016 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN DODGE...SOUTH CENTRAL CUMING AND NORTHEASTERN COLFAX COUNTIES UNTIL 115 AM CDT... AT 1250 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR DODGE...OR 32 MILES NORTHEAST OF COLUMBUS...MOVING NORTHEAST AT 15 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... WEST POINT...SCRIBNER...DODGE... SNYDER AND DEAD TIMBER STATE RECREATION AREA. THIS INCLUDES HIGHWAY 275 IN NEBRASKA BETWEEN MILE MARKERS 120 AND 129. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4169 9652 4158 9687 4178 9692 4190 9677 TIME...MOT...LOC 0550Z 236DEG 14KT 4171 9684 DEWALD
Special weather statement, Aug 2, 2:12 AM CDT, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 212 AM CDT TUE AUG 2 2016 NEZ050-051-020800- BUTLER NE-SAUNDERS NE- 212 AM CDT TUE AUG 2 2016 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN BUTLER AND WESTERN SAUNDERS COUNTIES UNTIL 300 AM CDT... AT 212 AM CDT...DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES SOUTHEAST OF SCHUYLER TO NEAR ULYSSES. MOVEMENT WAS EAST AT 30 MPH. WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THESE STORMS. LOCATIONS IMPACTED INCLUDE... DAVID CITY...VALPARAISO...BRAINARD...WESTON...PRAGUE...DWIGHT... ULYSSES...OCTAVIA...MALMO...COLON...BRUNO...ABIE AND GARRISON. THIS INCLUDES HIGHWAY 92 IN NEBRASKA BETWEEN MILE MARKERS 419 AND 442. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4138 9655 4105 9676 4105 9728 4138 9710 TIME...MOT...LOC 0712Z 269DEG 28KT 4140 9702 4105 9720 DEWALD
Special weather statement, Aug 2, 2:44 AM CDT, 45 minutes before
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</html>Special weather statement, Aug 2, 3:29 AM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 11:52 PM CDT | Special Weather Statement | OAX | Boone | 38 min |
| Aug 2, 12:08 AM CDT | Special Weather Statement | OAX | Stanton | 52 min |
| Aug 2, 12:16 AM CDT | Special Weather Statement | OAX | Madison | 29 min |
| Aug 2, 12:21 AM CDT | Special Weather Statement | OAX | Cuming | 24 min |
| Aug 2, 12:36 AM CDT | Areal Flood Advisory | OAX | Boone | 5 hr |
| Aug 2, 12:46 AM CDT | Special Weather Statement | OAX | Stanton | 29 min |
| Aug 2, 12:50 AM CDT | Special Weather Statement | OAX | Dodge | 25 min |
| Aug 2, 2:12 AM CDT | Special Weather Statement | OAX | Butler | 48 min |
| Aug 2, 2:21 AM CDT | Severe Thunderstorm Warning | OAX | Butler, Saunders | 39 min |
| Aug 2, 2:44 AM CDT | Special Weather Statement | OAX | Washington | 46 min |
| Aug 2, 2:46 AM CDT | Special Weather Statement | OAX | Cass, Lancaster | 44 min |
| Aug 2, 2:50 AM CDT | Special Weather Statement | OAX | Douglas, Sarpy | 40 min |
Nearby
Special Weather Statements in Iowa, 2016Special Weather Statements in Nebraska, 2016Every special weather statement in 2016
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.