Alert archive / Alabama / Severe Thunderstorm Watches in 2018

Severe Thunderstorm Watch 304

July 22, 201811 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida

The Storm Prediction Center issued this severe thunderstorm watch at Jul 22, 2018, 11:57 AM CDT for 11 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jul 22, 2018, 11:57 AM CDT (16:57 UTC)
Expired
Jul 22, 2018, 7:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt

Counties Baldwin County, AL, Butler County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 132 km from the middle of the area, began a volume at 17:01 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
50%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 22, 12:06 PM CDTSevere Thunderstorm WarningMOBClarke54 min
Jul 22, 12:33 PM CDTSevere Thunderstorm WarningMOBClarke, Monroe, Wilcox23 min
Jul 22, 12:35 PM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington15 min
Jul 22, 12:47 PM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw41 min
Jul 22, 12:54 PM CDTSevere Thunderstorm WarningMOBClarke, Monroe36 min
Jul 22, 1:18 PM CDTSevere Thunderstorm WarningMOBClarke, Conecuh, Escambia, Monroe18 min
Jul 22, 1:21 PM CDTSevere Thunderstorm WarningMOBCovington39 min
Jul 22, 2:02 PM CDTSevere Thunderstorm WarningMOBCovington58 min
Jul 22, 2:27 PM CDTSevere Thunderstorm WarningMOBClarke, Monroe37 min
Jul 22, 2:29 PM CDTTornado WarningMOBClarke23 min
Jul 22, 6:50 PM CDTSevere Thunderstorm WarningMOBSanta Rosa26 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 21, 8:28 PM CDTMesoscale DiscussionSPCChambers, Henry, Lee, Russell92 min
Jul 21, 10:29 PM CDTMesoscale DiscussionSPCButler, Coffee, Conecuh, Covington, Crenshaw, Escambia and 2 more2 hr
Jul 22, 10:15 AM CDTSevere Thunderstorm WatchSPCCoffee, Dale, Geneva, Henry, Houston10 hr
Jul 22, 11:27 AM CDTMesoscale DiscussionSPCButler, Clarke, Coffee, Conecuh, Covington, Crenshaw and 6 more63 min
Jul 22, 12:58 PM CDTMesoscale DiscussionSPCButler, Clarke, Coffee, Conecuh, Covington, Crenshaw and 6 more62 min
Jul 22, 1:56 PM CDTMesoscale DiscussionSPCBaldwin, Bullock, Butler, Choctaw, Clarke, Coffee and 16 more2 hr
Jul 22, 3:05 PM CDTMesoscale DiscussionSPCHouston115 min
Jul 22, 9:32 AM CDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Citrus, Clay, Columbia and 24 more58 min
Jul 22, 6:39 PM CDTMesoscale DiscussionSPCAlachua, Baker, Bradford, Citrus, Columbia, Dixie and 16 more66 min

Nearby

Severe Thunderstorm Watches in Alabama, 2018Severe Thunderstorm Watches in Florida, 2018Every severe thunderstorm watch in 2018

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.