Alert archive / Florida / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 97, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Sep 3, 2018, 4:56 PM CDT for Okaloosa County, Florida. It was in force for 49 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
- Sep 3, 2018, 4:56 PM CDT (21:56 UTC)
- Expired
- Sep 3, 2018, 5:45 PM CDT
- In force
- 49 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Okaloosa County, FL
The radar
The Eglin Afb radar (KEVX), 68 km from the middle of the area, began a volume at 21:59 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.9 hours before the alert went out and 225 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
- 1507 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 694 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- -38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
750 WUUS54 KMOB 032156 SVRMOB FLC091-032245- /O.NEW.KMOB.SV.W.0097.180903T2156Z-180903T2245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Mobile AL 456 PM CDT MON SEP 3 2018 The National Weather Service in Mobile has issued a * Severe Thunderstorm Warning for... Okaloosa County in northwestern Florida... * Until 545 PM CDT. * At 456 PM CDT, severe thunderstorms were located along a line extending from 9 miles east of Crestview to 5 miles south of Eglin Air Force Base, moving west at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Wright, Fort Walton Beach, Crestview, Niceville, Eglin AFB, Valparaiso, Mary Esther, Ocean City, Lake Lorraine, Shalimar, Cinco Bayou and Eglin Air Force Base. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3076 8679 3079 8639 3045 8639 3037 8680 TIME...MOT...LOC 2156Z 083DEG 31KT 3078 8642 3053 8624 HAIL...<.75IN WIND...60MPH $$
2 follow-up statements
416 WWUS54 KMOB 032212 SVSMOB Severe Weather Statement National Weather Service Mobile AL 512 PM CDT MON SEP 3 2018 FLC091-032245- /O.CON.KMOB.SV.W.0097.000000T0000Z-180903T2245Z/ Okaloosa FL- 512 PM CDT MON SEP 3 2018 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR CENTRAL OKALOOSA COUNTY... At 512 PM CDT, severe thunderstorms were located along a line extending from Crestview to 3 miles north of Niceville, moving west at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Crestview. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3076 8679 3079 8639 3054 8639 3050 8680 TIME...MOT...LOC 2212Z 084DEG 32KT 3077 8655 3056 8649 HAIL...<.75IN WIND...60MPH $$
713 WWUS54 KMOB 032230 SVSMOB Severe Weather Statement National Weather Service Mobile AL 530 PM CDT MON SEP 3 2018 FLC091-032245- /O.CON.KMOB.SV.W.0097.000000T0000Z-180903T2245Z/ Okaloosa FL- 530 PM CDT MON SEP 3 2018 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR SOUTHWESTERN OKALOOSA COUNTY... At 530 PM CDT, severe thunderstorms were located along a line extending from 3 miles south of Baker to 6 miles north of Wright, moving west at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. These severe thunderstorms will remain over mainly rural areas of southwestern Okaloosa County. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3076 8679 3077 8662 3052 8661 3050 8680 TIME...MOT...LOC 2230Z 083DEG 31KT 3075 8669 3054 8663 HAIL...<.75IN WIND...60MPH $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 7:26 PM CDT | Special Weather Statement | MOB | Okaloosa | 64 min |
| Sep 2, 7:48 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa | 42 min |
| Sep 3, 4:34 AM CDT | Tropical Storm Warning | MOB | Escambia, Okaloosa, Santa Rosa | 48 hr |
| Sep 3, 5:19 AM CDT | Flash Flood Watch | MOB | Escambia, Santa Rosa | 58 hr |
| Sep 3, 10:32 AM CDT | Storm Surge Watch | MOB | Escambia, Santa Rosa | 42 hr |
| Sep 3, 4:30 PM CDT | Special Weather Statement | MOB | Okaloosa | 45 min |
| Sep 3, 4:46 PM CDT | Special Weather Statement | MOB | Okaloosa | 59 min |
| Sep 3, 5:19 PM CDT | Special Weather Statement | MOB | Santa Rosa | 56 min |
| Sep 3, 6:03 PM CDT | Special Weather Statement | MOB | Escambia | 42 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.