Alert archive / Florida / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 99, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Sep 18, 2018, 1:12 PM CDT for Santa Rosa County, Florida. It was in force for 48 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 18, 2018, 1:12 PM CDT (18:12 UTC)
- Expired
- Sep 18, 2018, 2:00 PM CDT
- In force
- 48 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Santa Rosa County, FL
The radar
The Mobile radar (KMOB), 105 km from the middle of the area, began a volume at 18:12 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 18, 1:19 PM CDT | TSTM WND DMG | 4 Sw Milton Near Whitin, FL | LARGE CEDAR TREE SNAPPED BY THUNDERSTORM WINDS IN THE POINT BAKER AREA NEAR WHITING FIELD MILTON, FLORIDA. |
| Sep 18, 1:19 PM CDT | TSTM WND GST 53 | 1 Ssw Milton Near Whiti, FL | THE WHITING FIELD NAVAL AIR STATION (KNSE) OBSERVATION SITE REPORTED A WIND GUST OF 53 MPH AT 1:19 PM CDT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 6.2 hours before the alert went out and 249 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
- 1561 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1107 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- -13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
794
WUUS54 KMOB 181812
SVRMOB
FLC113-181900-
/O.NEW.KMOB.SV.W.0099.180918T1812Z-180918T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
112 PM CDT TUE SEP 18 2018
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Central Santa Rosa County in northwestern Florida...
* Until 200 PM CDT.
* At 111 PM CDT, a severe thunderstorm was located over Point Baker,
or 5 miles north of Milton, moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Milton, Bagdad, Point Baker, Roeville and Pea Ridge.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3062 8722 3062 8726 3063 8725 3063 8726
3065 8726 3081 8723 3088 8679 3052 8680
TIME...MOT...LOC 1811Z 267DEG 20KT 3071 8707
HAIL...<.75IN
WIND...60MPH
$$2 follow-up statements
078 WWUS54 KMOB 181830 SVSMOB Severe Weather Statement National Weather Service Mobile AL 130 PM CDT TUE SEP 18 2018 FLC113-181900- /O.CON.KMOB.SV.W.0099.000000T0000Z-180918T1900Z/ Santa Rosa FL- 130 PM CDT TUE SEP 18 2018 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR NORTHEASTERN SANTA ROSA COUNTY... At 129 PM CDT, a severe thunderstorm was located over Roeville, or 5 miles northeast of Milton, moving east at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Milton, Bagdad, Point Baker, Pea Ridge and Roeville. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3060 8715 3083 8712 3088 8679 3052 8680 TIME...MOT...LOC 1829Z 269DEG 16KT 3071 8699 HAIL...<.75IN WIND...60MPH $$
196
WWUS54 KMOB 181854
SVSMOB
Severe Weather Statement
National Weather Service Mobile AL
154 PM CDT TUE SEP 18 2018
FLC113-181903-
/O.EXP.KMOB.SV.W.0099.000000T0000Z-180918T1900Z/
Santa Rosa FL-
154 PM CDT TUE SEP 18 2018
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SANTA ROSA COUNTY
WILL EXPIRE AT 200 PM CDT...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning will be allowed to expire.
LAT...LON 3060 8715 3083 8712 3088 8679 3052 8680
TIME...MOT...LOC 1853Z 267DEG 20KT 3071 8688
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 12:43 PM CDT | Special Weather Statement | MOB | Escambia, Santa Rosa | 47 min |
| Sep 18, 2:42 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa | 16 min |
| Sep 18, 4:53 PM CDT | Special Weather Statement | MOB | Escambia | 37 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2018Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.