Alert archive / Mississippi / Frost Advisories in 2011
Frost Advisory 4, NWS Mobile, AL
NWS Mobile, AL issued this frost advisory at Oct 30, 2011, 11:16 AM CDT for George County, Stone County, Mississippi. It took effect at Oct 31, 2011, 5:00 AM CDT. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Oct 30, 2011, 11:16 AM CDT (16:16 UTC)
- In effect from
- Oct 31, 2011, 5:00 AM CDT
- Expired
- Oct 31, 2011, 7:02 AM CDT
- In force
- 2 hr
- Issued by
- NWS Mobile, AL
Counties George County, MS, Stone County, MS
The radar
The Mobile radar (KMOB), 63 km from the middle of the area, began a volume at 16:16 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 4.3 hours before the alert went out and 101 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1741 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
674 WWUS74 KMOB 301616 NPWMOB URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOBILE AL 1116 AM CDT SUN OCT 30 2011 ...FREEZE WARNING TONIGHT GENERALLY NORTH OF A LINE FROM FLORALA ALABAMA TO ATMORE ALABAMA TO BEAUMONT MISSISSIPPI... ...FROST ADVISORY TONIGHT GENERALLY SOUTH OF A LINE FROM FROM FLORALA ALABAMA TO ATMORE ALABAMA TO BEAUMONT MISSISSIPPI... .AS STRONG SURFACE HIGH PRESSURE BUILDS OVER...VERY DRY AND COOL AIR ALREADY IN PLACE OVER OUR REGION WILL ALLOW TEMPERATURES TO FALL VERY CLOSE TO FREEZING TONIGHT IN THE WARNED AREA TONIGHT. A FROST ADVISORY IS IN EFFECT CLOSER TO THE COAST. TONIGHT'S TRENDS WILL BE SIMILAR TO LAST NIGHT. MANY INTERIOR REGIONS FELL TO 32 DEG(F) WITH SOME UPPER 20S IN CHOCTAW COUNTY, ALABAMA. MINIMUM TEMPERATURES ARE FORECAST TO BE NO LOWER THAN 30 DEGREES FOR ANY ONE GIVEN LOCATION. LOW LYING AREAS WILL BE THE COLDEST...ESPECIALLY IN RIVER VALLEYS WHERE LOCAL DRAINAGE FLOWS NEAR THE GROUND CAUSES COLD AIR TO POOL. ALZ051-MSZ067-310030- /O.UPG.KMOB.FZ.A.0001.111031T1000Z-111031T1300Z/ /O.NEW.KMOB.FZ.W.0001.111031T1000Z-111031T1300Z/ CHOCTAW-WAYNE- INCLUDING THE CITIES OF...BUTLER...LISMAN...SILAS...WAYNESBORO 1116 AM CDT SUN OCT 30 2011 ...FREEZE WARNING IN EFFECT FROM 5 AM TO 8 AM CDT MONDAY... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 5 AM TO 8 AM CDT MONDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. * EVENT...SURFACE TEMPERATURES FALLING TO NEAR FREEZING. * TIMING...5 TO 8 AM CDT MONDAY MORNING. * IMPACT...A LIGHT FREEZE MAY INJURE OR KILL SENSITIVE PLANTS LEFT UNCOVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS NEAR OR SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS...NEW GROWTH...AND OTHER SENSITIVE VEGETATION. && $$ ALZ052>060-MSZ075-076-310030- /O.NEW.KMOB.FZ.W.0001.111031T1000Z-111031T1300Z/ WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-ESCAMBIA- COVINGTON-PERRY-GREENE- INCLUDING THE CITIES OF...CHATOM...MILLRY...JACKSON... THOMASVILLE...GROVE HILL...CAMDEN...PINE HILL...HOMEWOOD... MONROEVILLE...EVERGREEN...GREENVILLE...LUVERNE...BRANTLEY... ATMORE...BREWTON...EAST BREWTON...ANDALUSIA...OPP...RICHTON... BEAUMONT...NEW AUGUSTA...LEAKESVILLE...MCLAIN 1116 AM CDT SUN OCT 30 2011 ...FREEZE WARNING IN EFFECT FROM 5 AM TO 8 AM CDT MONDAY... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 5 AM TO 8 AM CDT MONDAY. * EVENT...SURFACE TEMPERATURES FALLING TO NEAR FREEZING. * TIMING...5 TO 8 AM CDT MONDAY MORNING. * IMPACT...A LIGHT FREEZE MAY INJURE OR KILL SENSITIVE PLANTS LEFT UNCOVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS...NEW GROWTH...AND OTHER SENSITIVE VEGETATION. && $$ ALZ061>064-FLZ001>006-MSZ078-079-310030- /O.NEW.KMOB.FR.Y.0004.111031T1000Z-111031T1300Z/ UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-LOWER BALDWIN- INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-STONE-GEORGE- INCLUDING THE CITIES OF...MOBILE...PRICHARD...SARALAND... BAY MINETTE...TILLMANS CORNER...THEODORE...DAPHNE...FAIRHOPE... FOLEY...SPANISH FORT...CENTURY...FLOMATON...MOLINO...FERRY PASS... BRENT...WEST PENSACOLA...BELLVIEW...ENSLEY...MYRTLE GROVE...JAY... PACE...MILTON...CRESTVIEW...WRIGHT...NICEVILLE...SEMINOLE... EGLIN AFB...WIGGINS...LUCEDALE 1116 AM CDT SUN OCT 30 2011 ...FROST ADVISORY IN EFFECT FROM 5 AM TO 8 AM CDT MONDAY... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 5 AM TO 8 AM CDT MONDAY. * EVENT...FROST WILL FORM AS TEMPERATURES FALL INTO THE MID 30S AS FAR SOUTH AS THE CENTRAL PORTIONS OF THE COASTAL COUNTIES. FROST IS NOT EXPECTED SOUTH OF THE CENTRAL PORTION OF THE COASTAL COUNTIES OF ALABAMA OR THE NORTHWEST FLORIDA PANHANDLE. * TIMING...5 TO 8 AM CDT MONDAY MORNING. * IMPACT...ONCE THE FROST FORMS...IT WILL BE PATCHY NEAR THE GROUND POTENTIALLY DAMAGING TENDER AND SENSITIVE VEGETATION. PRECAUTIONS MUST BE TAKEN TO PROTECT THESE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED OR SUFFER FROST BURN IF LEFT UNCOVERED. && $$
2 follow-up statements
866 WWUS74 KMOB 310119 NPWMOB URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOBILE AL 819 PM CDT SUN OCT 30 2011 ...FREEZE WARNING TONIGHT GENERALLY NORTH OF A LINE FROM FLORALA ALABAMA TO ATMORE ALABAMA TO BEAUMONT MISSISSIPPI... ...FROST ADVISORY TONIGHT GENERALLY SOUTH OF A LINE FROM FROM FLORALA ALABAMA TO ATMORE ALABAMA TO BEAUMONT MISSISSIPPI... .AS STRONG SURFACE HIGH PRESSURE BUILDS OVER...VERY DRY AND COOL AIR ALREADY IN PLACE OVER OUR REGION WILL ALLOW TEMPERATURES TO FALL VERY CLOSE TO FREEZING TONIGHT IN THE WARNED AREA TONIGHT. A FROST ADVISORY IS IN EFFECT CLOSER TO THE COAST. TONIGHT'S TRENDS WILL BE SIMILAR TO LAST NIGHT. MANY INTERIOR REGIONS FELL TO 32 DEG(F) WITH SOME UPPER 20S IN CHOCTAW COUNTY... ALABAMA. MINIMUM TEMPERATURES ARE FORECAST TO BE NO LOWER THAN 30 DEGREES FOR ANY ONE GIVEN LOCATION. LOW LYING AREAS WILL BE THE COLDEST... ESPECIALLY IN RIVER VALLEYS WHERE LOCAL DRAINAGE FLOWS NEAR THE GROUND CAUSES COLD AIR TO POOL. ALZ051>060-MSZ067-075-076-310930- /O.CON.KMOB.FZ.W.0001.111031T1000Z-111031T1300Z/ CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW- ESCAMBIA-COVINGTON-WAYNE-PERRY-GREENE- INCLUDING THE CITIES OF...BUTLER...LISMAN...SILAS...CHATOM... MILLRY...JACKSON...THOMASVILLE...GROVE HILL...CAMDEN... PINE HILL...HOMEWOOD...MONROEVILLE...EVERGREEN...GREENVILLE... LUVERNE...BRANTLEY...ATMORE...BREWTON...EAST BREWTON... ANDALUSIA...OPP...WAYNESBORO...RICHTON...BEAUMONT...NEW AUGUSTA... LEAKESVILLE...MCLAIN 819 PM CDT SUN OCT 30 2011 ...FREEZE WARNING REMAINS IN EFFECT FROM 5 AM TO 8 AM CDT MONDAY... * EVENT...SURFACE TEMPERATURES FALLING TO NEAR FREEZING. * TIMING...5 TO 8 AM CDT MONDAY MORNING. * IMPACT...A LIGHT FREEZE MAY INJURE OR KILL SENSITIVE PLANTS LEFT UNCOVERED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS...NEW GROWTH... AND OTHER SENSITIVE VEGETATION. && $$ ALZ061>064-FLZ001>006-MSZ078-079-310930- /O.CON.KMOB.FR.Y.0004.111031T1000Z-111031T1300Z/ UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-LOWER BALDWIN- INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-STONE-GEORGE- INCLUDING THE CITIES OF...MOBILE...PRICHARD...SARALAND... BAY MINETTE...TILLMANS CORNER...THEODORE...DAPHNE...FAIRHOPE... FOLEY...SPANISH FORT...CENTURY...FLOMATON...MOLINO...FERRY PASS... BRENT...WEST PENSACOLA...BELLVIEW...ENSLEY...MYRTLE GROVE...JAY... PACE...MILTON...CRESTVIEW...WRIGHT...NICEVILLE...SEMINOLE... EGLIN AFB...WIGGINS...LUCEDALE 819 PM CDT SUN OCT 30 2011 ...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 8 AM CDT MONDAY... * EVENT...FROST WILL FORM AS TEMPERATURES FALL INTO THE MID 30S AS FAR SOUTH AS THE CENTRAL PORTIONS OF THE COASTAL COUNTIES. FROST IS NOT EXPECTED SOUTH OF THE CENTRAL PORTION OF THE COASTAL COUNTIES OF ALABAMA OR THE NORTHWEST FLORIDA PANHANDLE. * TIMING...5 TO 8 AM CDT MONDAY MORNING. * IMPACT...ONCE THE FROST FORMS...IT WILL BE PATCHY NEAR THE GROUND POTENTIALLY DAMAGING TENDER AND SENSITIVE VEGETATION. PRECAUTIONS MUST BE TAKEN TO PROTECT THESE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED OR SUFFER FROST BURN IF LEFT UNCOVERED. && $$
638 WWUS74 KMOB 311202 NPWMOB URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE MOBILE AL 702 AM CDT MON OCT 31 2011 ...FREEZE WARNING OVER THE INTERIOR HAS BEEN CANCELLED... ...FROST ADVISORY OVER THE SOUTHERN ZONES HAS BEEN CANCELLED... .OVERNIGHT TEMPERATURES HAVE REMAINED NEARLY STEADY...WITH OBSERVATIONS STAYING A FEW DEGREES ABOVE FREEZING OVER MOST OF THE INTERIOR OUTSIDE OF A FEW SPOTS. OVER THE SOUTHERN ZONES...LOW TEMPERATURES HAVE ONLY DIPPED INTO THE LOWER TO MID 40S...A BIT TOO WARM FOR FROST. ALZ051>060-MSZ067-075-076-311315- /O.CAN.KMOB.FZ.W.0001.000000T0000Z-111031T1300Z/ CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW- ESCAMBIA-COVINGTON-WAYNE-PERRY-GREENE- INCLUDING THE CITIES OF...BUTLER...LISMAN...SILAS...CHATOM... MILLRY...JACKSON...THOMASVILLE...GROVE HILL...CAMDEN... PINE HILL...HOMEWOOD...MONROEVILLE...EVERGREEN...GREENVILLE... LUVERNE...BRANTLEY...ATMORE...BREWTON...EAST BREWTON... ANDALUSIA...OPP...WAYNESBORO...RICHTON...BEAUMONT...NEW AUGUSTA... LEAKESVILLE...MCLAIN 702 AM CDT MON OCT 31 2011 ...FREEZE WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOBILE HAS CANCELLED THE FREEZE WARNING. ALTHOUGH LOW TEMPERATURES HAVE REMAINED A FEW DEGREES ABOVE FREEZING...ONLY A FEW OF THE COLDER SPOTS HAVE DIPPED TO 32 SHORTLY AFTER DAYBREAK. WIDESPREAD FREEZING CONDITIONS...THOUGH...APPEAR UNLIKELY TO MAINTAIN THE FREEZE WARNING THROUGH 8 AM GIVEN LATEST TRENDS IN SURFACE OBSERVATIONS. $$ ALZ061>064-FLZ001>006-MSZ078-079-311315- /O.CAN.KMOB.FR.Y.0004.000000T0000Z-111031T1300Z/ UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-LOWER BALDWIN- INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-STONE-GEORGE- INCLUDING THE CITIES OF...MOBILE...PRICHARD...SARALAND... BAY MINETTE...TILLMANS CORNER...THEODORE...DAPHNE...FAIRHOPE... FOLEY...SPANISH FORT...CENTURY...FLOMATON...MOLINO...PENSACOLA... FERRY PASS...BRENT...WEST PENSACOLA...BELLVIEW...ENSLEY... MYRTLE GROVE...JAY...PACE...MILTON...GULF BREEZE...CRESTVIEW... WRIGHT...FORT WALTON BEACH...NICEVILLE...DESTIN...SEMINOLE... EGLIN AFB...VALPARAISO...WIGGINS...LUCEDALE 702 AM CDT MON OCT 31 2011 ...FROST ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN MOBILE HAS CANCELLED THE FROST ADVISORY. OBSERVATIONS SHOW TEMPERATURES MOST AREAS FROM 40 TO 45 NORTH OF INTERSTATE 10. A FEW LOCALES COULD SEE 37 TO 39 JUST AFTER DAYBREAK AND SOME PATCHY LIGHT FROST REMAINS POSSIBLE IN THOSE SPOTS...BUT WIDESPREAD FROST...APPEARS UNLIKELY TO MAINTAIN THE ADVISORY THROUGH 8 AM. $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 30, 11:16 AM CDT | Freeze Warning | MOB | Greene, Perry, Wayne | 20 hr |
| Oct 30, 2:14 PM CDT | Fire Weather Watch | MOB | 16 hr | |
| Oct 30, 2:14 PM CDT | Fire Weather Watch | MOB | 22 hr |
Nearby
Frost Advisories in Mississippi, 2011Frost Advisories in Florida, 2011Frost Advisories in Alabama, 2011Every frost advisory in 2011
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.