Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 60, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Apr 10, 2021, 4:53 AM CDT for Escambia County, Okaloosa County, Santa Rosa County, Florida; Baldwin County, Covington County, Escambia County, Alabama. It was in force for 52 min. 8 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
- Apr 10, 2021, 4:53 AM CDT (09:53 UTC)
- Expired
- Apr 10, 2021, 5:45 AM CDT
- In force
- 52 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Baldwin County, AL, Covington County, AL, Escambia County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL
The radar
The Mobile radar (KMOB), 98 km from the middle of the area, began a volume at 09:52 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 |
|---|---|---|---|
| Apr 10, 4:53 AM CDT | HAIL 1 | Niceville, FL | REPORTS OF QUARTER SIZE HAIL (AND PHOTOS) FROM THE NICEVILLE AREA VIA SOCIAL MEDIA. |
| Apr 10, 5:05 AM CDT | MARINE TSTM WIND 51 | 2 Wsw Gasque, AL | MARINE THUNDERSTORM WIND GUST OF 51 MPH AT THE MESONET STATION IN GASQUE. |
| Apr 10, 5:15 AM CDT | TSTM WND GST 61 | 6 E Chumuckla, FL | MESONET SITE JAYF1 REPORTED A 61 MPH THUNDERSTORM WIND GUST. |
| Apr 10, 5:20 AM CDT | TSTM WND GST 55 | 1 Nne Myrtle Grove, FL | WEATHERSTEM STATION AT ESCAMBIA HIGH SCHOOL MEASURED A WIND GUST TO 55MPH. |
| Apr 10, 5:26 AM CDT | TSTM WND DMG | Pace, FL | STRONG WINDS BLEW ENTIRE ROOF OFF BUILDING AT 3949 HWY 90. TIME ESTIMATED BASED ON RADAR. |
| Apr 10, 5:28 AM CDT | MARINE TSTM WIND 52 | 1 Nne Pensacola Interna, FL | MARINE THUNDERSTORM WIND GUST OF 52 MPH AT KPNS (PENSACOLA AIRPORT). |
| Apr 10, 5:35 AM CDT | MARINE TSTM WIND 42 | 1 E Gulf Breeze, FL | MARINE THUNDERSTORM WIND GUST OF 42 MPH AT THE WEATHERFLOW STATION (XGBZ) IN GULF BREEZE. |
| Apr 10, 5:40 AM CDT | MARINE TSTM WIND 42 | 5 Ene Oriole Beach, FL | MARINE THUNDERSTORM WIND GUST OF 42 MPH AT THE WEATHERSTEM SITE IN ORIOLE BEACH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 10, 2:30 AM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 9.9 hours before the alert went out and 239 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
- 2977 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 599 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 243 m²/s²
- 0-3 km storm-relative helicity
- 269 m²/s²
- Significant tornado parameter
- 3.4
- Supercell composite
- 18.1
The text
As transmitted.
958
WUUS54 KMOB 100953
SVRMOB
ALC003-039-053-FLC033-091-113-101045-
/O.NEW.KMOB.SV.W.0060.210410T0953Z-210410T1045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
453 AM CDT Sat Apr 10 2021
The National Weather Service in Mobile has issued a
* Severe Thunderstorm Warning for...
Southern Baldwin County in southwestern Alabama...
Southeastern Escambia County in south central Alabama...
Southern Covington County in south central Alabama...
Okaloosa County in northwestern Florida...
Santa Rosa County in northwestern Florida...
Escambia County in northwestern Florida...
* Until 545 AM CDT.
* At 452 AM CDT, severe thunderstorms were located along a line
extending from near Pollard to 4 miles north of Molino to 7 miles
west of Bon Secour to 13 miles southeast of Petit Bois Island,
moving east at 60 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Pensacola, Ferry Pass, Brent, West Pensacola, Wright, Fort Walton
Beach, Ensley, Warrington, Crestview, Niceville, Gonzalez, Destin,
Gulf Shores, Eglin AFB, Foley, Pace, Milton, Valparaiso, Gulf
Breeze and Brewton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 800 AM CDT for south central
and southwestern Alabama...and northwestern Florida.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across Southern Alabama. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows!
&&
LAT...LON 3022 8823 3025 8819 3025 8808 3026 8816
3036 8798 3112 8717 3109 8619 3099 8619
3099 8639 3046 8639 3046 8638 3036 8641
3022 8720
TIME...MOT...LOC 0952Z 259DEG 52KT 3103 8714 3079 8733 3028 8784 3010
8832
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
BlackThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 2:50 AM CDT | Severe Thunderstorm Warning | MOB | Escambia | 55 min |
| Apr 10, 2:59 AM CDT | Severe Thunderstorm Warning | MOB | Escambia | 61 min |
| Apr 10, 3:46 AM CDT | Special Weather Statement | MOB | Escambia, Santa Rosa | 44 min |
| Apr 10, 3:53 AM CDT | Severe Thunderstorm Warning | MOB | Escambia, Santa Rosa | 67 min |
| Apr 10, 4:07 AM CDT | Areal Flood Advisory | MOB | Escambia | 3 hr |
| Apr 10, 4:30 AM CDT | Special Weather Statement | MOB | Okaloosa | 45 min |
| Apr 10, 5:10 AM CDT | Areal Flood Advisory | MOB | Escambia, Santa Rosa | 3 hr |
| Apr 10, 5:40 AM CDT | Flash Flood Warning | MOB | Escambia, Santa Rosa | 6 hr |
| Apr 10, 5:44 AM CDT | Severe Thunderstorm Warning | MOB | Escambia, Okaloosa, Santa Rosa | 61 min |
| Apr 10, 5:57 AM CDT | Tornado Warning | MOB | Okaloosa | 33 min |
| Apr 10, 6:18 AM CDT | Tornado Warning | MOB | Okaloosa | 12 min |
| Apr 10, 6:20 AM CDT | Severe Thunderstorm Warning | MOB | Escambia | 40 min |
| Apr 10, 6:52 AM CDT | Severe Thunderstorm Warning | MOB | Escambia, Okaloosa, Santa Rosa | 53 min |
| Apr 10, 7:35 AM CDT | Severe Thunderstorm Warning | MOB | Okaloosa, Santa Rosa | 41 min |
| Apr 10, 7:39 AM CDT | Flash Flood Warning | MOB | Okaloosa | 5 hr |
| Apr 10, 9:38 AM CDT | River Flood Warning | MOB | Okaloosa | 11 hr |
| Apr 9, 9:31 PM CDT | River Flood Warning | MOB | Mobile | 63 hr |
| Apr 10, 1:06 AM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 54 min |
| Apr 10, 1:15 AM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Washington | 45 min |
| Apr 10, 1:33 AM CDT | Special Marine Warning | MOB | 87 min | |
| Apr 10, 1:58 AM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke, Washington, Wilcox | 62 min |
| Apr 10, 2:22 AM CDT | Special Weather Statement | MOB | Mobile | 68 min |
| Apr 10, 2:35 AM CDT | Severe Thunderstorm Warning | MOB | Mobile | 25 min |
| Apr 10, 2:43 AM CDT | Severe Thunderstorm Warning | MOB | Mobile | 17 min |
| Apr 10, 3:36 AM CDT | Special Marine Warning | MOB | 114 min | |
| Apr 10, 4:33 AM CDT | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Crenshaw, Escambia | 57 min |
| Apr 10, 5:28 AM CDT | Special Marine Warning | MOB | 2 hr | |
| Apr 10, 5:53 AM CDT | Flash Flood Warning | MOB | Mobile | 6 hr |
| Apr 10, 6:04 AM CDT | Special Marine Warning | MOB | 86 min | |
| Apr 10, 6:48 AM CDT | Special Marine Warning | MOB | 87 min | |
| Apr 10, 7:12 AM CDT | Special Marine Warning | MOB | 63 min | |
| Apr 10, 7:30 AM CDT | Special Marine Warning | MOB | 90 min | |
| Apr 10, 9:28 AM CDT | River Flood Warning | MOB | Baldwin | 11 hr |
| Apr 10, 9:33 AM CDT | River Flood Warning | MOB | Baldwin | 5 hr |
Nearby
Severe Thunderstorm Warnings in Florida, 2021Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning in 2021
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.